• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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    • 专利摘要:
    METHODS FOR DECARBONIZATION OF COKE OVENS AND ASSOCIATED SYSTEMS AND DEVICES The present technology refers, in general, to methods of decarbonization of coke ovens and associated systems and devices. In some embodiments, a method for operating and decarbonizing a coke oven may include inserting a charge of coal into the coke oven and heating the coal. The method may additionally include removing at least a portion of the filler, leaving deposits of coke in the coke oven. At least a portion of the deposits can be continuously removed from the coke oven. For example, in some embodiments, at least a portion of the deposits can be removed whenever a new load of coal is inserted into the coke oven.
    公开号:BR112016015475B1
    申请号:R112016015475-4
    申请日:2014-12-31
    公开日:2021-02-17
    发明作者:John Francis Quanci；Chun Wai Choi；Mark Ball；Tony Amadio；Gary West；Bradley Thomas Rodger；Dwayne Johnson
    申请人:Suncoke Technology And Development Llc；
    IPC主号:
    专利说明:

    [0001] [001] This application claims the benefit of US Provisional Patent Application No. 61,922,614, filed on December 31, 2013, the disclosure of which is incorporated in this document for reference in its entirety. Technique Field
    [0002] [002] The present technology, in general, refers to methods of de-carbonization of coke ovens and associated systems and devices. Background
    [0003] [003] Coke is a solid carbon fuel and carbon source used to melt and reduce iron ore in steel production. To produce coke, finely crushed coal is fed into a coke oven and heated in an oxygen-poor environment under tightly controlled atmospheric conditions. Such an environment expels volatile compounds in coal, abandoning coke. In some coke ovens, once the coal is removed from coke or completely coked, an oven door is opened and the hot coke is pushed from the oven into a hot box of a flat propelled heating car ("car" of heating "). The heating car then transports the hot coke from the coke oven to a blast cooling area (for example, blast wet or dry cooling) to cool the coke below its ignition temperature. After being abruptly cooled, the coke is sieved and loaded on wagons or trucks for transportation or later use.
    [0004] [004] Over time, volatile coal constituents (ie water, coal gas, tar, etc.) released during the coking process can accumulate on the internal surfaces of the coke oven, forming deposits of sticky solidified coke. As used in this document, "coke tank (s)" refers to one or more materials that can accumulate inside the coke oven, such as slag, ash and others. Such deposits can have a variety of adverse effects on coke production, including slowing and / or complicating the hot coke de-stripping operation, reducing the effective dimensions of the oven, and reducing the thermal conductivity of the walls and / or floor of the coke. oven. Due to such adverse effects, the removal of deposits ("decarbonization") is a mandatory aspect of routine coke oven maintenance to maintain efficiency and efficiency of the coke oven.
    [0005] [005] To remove deposits from the coke ovens, the oven operation (and thus the production of coke) must be stopped so that the deposits can be targeted and pushed out of the oven and into the heating car for disposal. Traditionally, an oven is taken out of service once every 1 to 3 years for decarbonization. For 1 to 3 years, the deposits became a solid, almost indestructible piece of slag that is attached to various internal surfaces of the coke oven, including the floor, side walls and crown. Very similar to hot coke, the deposits are extremely hot and exert a great deal of thermal and mechanical stress on the coke machinery. Many conventional coking plants attempt to mitigate damage to machinery by breaking large deposits and transporting them to a sudden cooling tower for cooling in smaller, manageable portions. However, since an iterative approach takes a long time to remove the residue, in this way, keeping the ovens / sudden cooling tower out of operation and the production of coke stopped. In addition, removing the waste in parts increases the number of transports required for hot cars, exposing hot cars and / or their individual components to an increased amount of thermal and mechanical stress. Brief description of the figures
    [0006] [006] Figure 1A is a schematic plan view of a coke oven configured according to the modalities of the present technology.
    [0007] [007] Figure 1B is a partially schematic front view of a coke oven having coke deposits in it and configured according to the modalities of the present technology.
    [0008] [008] Figure 2 is a partially schematic front view of a modality of a decarbonization system configured according to the modalities of the technology.
    [0009] [009] Figure 3A is a partially anterior schematic view of a modality of a decarbonization system configured according to the modalities of the technology.
    [0010] [010] Figure 3B is a partially top schematic view of another modality of a decarbonization system configured according to the modality of the technology.
    [0011] [011] Figure 3C is a partially schematic side view of the decarbonization system revealed in Figure 3B.
    [0012] [012] Figure 3D is a partially schematic top view of an additional modality of a decarbonization system configured according to the modality of the technology.
    [0013] [013] Figure 3E is a partially anterior schematic view of another modality of a decarbonization system configured in accordance with additional modalities of the technology.
    [0014] [014] Figure 3F is a partially isometric schematic view of a portion of the decarbonization system revealed in Figure 3E.
    [0015] [015] Figure 4A is a partially schematic side view of a modality of a decarbonization system configured according to the modalities of the technology.
    [0016] [016] Figure 4B is a partially schematic side view of another modality of a decarbonization system configured according to the modality of the technology.
    [0017] [017] Figure 3D is a partially schematic side view of an additional modality of a decarbonization system configured in accordance with yet other modalities of the technology.
    [0018] [018] Figure 6 is a partially schematic side view of yet another modality of a decarbonization system configured in accordance with additional modalities of the technology.
    [0019] [019] Figure 7 is a partially schematic side view of another modality of a decarbonization system configured according to the modality of the technology.
    [0020] [020] Figure 8 is a partially schematic side view of an additional modality of a decarbonization system configured according to the modality of the technology.
    [0021] [021] Figure 9A is a partially schematic front view of another modality of a decarbonization system configured according to the modality of the technology.
    [0022] [022] Figure 9B is a partially top schematic view of an additional modality of a decarbonization system configured according to the modality of the technology.
    [0023] [023] Figure 9C is a partially anterior schematic view of the decarbonization system revealed in Figure 9B.
    [0024] [024] Figure 10A reveals a side perspective view of a modality of a decarbonization system configured according to the modalities of the technology.
    [0025] [025] Figure 10B reveals a side perspective view of the decarbonization system revealed in Figure 10A and reveals a way in which it can be coupled to a pressing piston.
    [0026] [026] Figure 11 is a partially anterior schematic view of a modality of a decarbonization system configured in accordance with the modalities of the technology and reveals a way in which it can engage with a coke oven floor.
    [0027] [027] Figure 12 is a partially anterior schematic view of another modality of a decarbonization system configured according to the modalities of the technology and reveals a way in which it can be coupled to a coke oven floor.
    [0028] [028] Figure 13 is a block diagram that illustrates a method of decarbonizing a coke oven according to the modalities of the technology.
    [0029] [029] Figure 14 is a block diagram that illustrates a method of operating a coke oven according to the modalities of the technology. Detailed Description
    [0030] [030] The present technology, in general, refers to methods of decarbonization of coke ovens and associated systems and devices. In some embodiments, a method for operating and decarbonizing a coke oven may include inserting a loose charge of coal into the coke oven and heating the coal. The method may also include removing at least a portion of the charge, leaving coke deposits in the coke oven. At least a portion of the deposits can be continuously removed from the coke oven. For example, in some embodiments, at least a portion of the deposits can be removed each time a new load of coal is inserted into the coke oven.
    [0031] [031] Specific details of various technology modalities are described below with reference to Figures 1A to 14. Other details that describe well-known structures and systems often associated with coke and decarbonisation ovens have not been presented in the following disclosure to avoid unnecessarily obscuring the description of the various modalities of the technology. Many details, dimensions, angles, and other characteristics shown in the Figures are merely illustrative of specific modalities of the technology. Consequently, other modalities can have other details, dimensions, angles and characteristics without departing from the spirit or scope of the present technology. One skilled in the art, therefore, will understand that the technology may have other modalities with additional elements, or the technology may have other modalities without various characteristics shown and described below with reference to Figures 1A to 14.
    [0032] [032] Figure 1A is a schematic plan view of a coke oven battery 10 configured according to the modalities of the technology. Figure 1B is a front view of an individual coke oven 12 having coke deposits 26 therein and configured according to the modalities of the present technology. Referring to Figures 1A and 1B together, the typical coke oven battery 10 contains a plurality of side-by-side coke ovens 12. Each coke oven 12 may have a coal inlet end 14 and a coal end. coke outlet 16 opposite the inlet end 14. Each individual coke oven 12 additionally includes an oven floor 64, a plurality of side walls 62, and an oven crown 60 coupled to side walls 62 and over a coking chamber.
    [0033] [033] The furnace can receive coal, as loose coal with an unmolded load, from the inlet end 14. The coal can be heated in coke oven 12 until it is completely coked (typically 24 to 120 hours). An exit door removal device 20 can be positioned adjacent to the exit end 16 of the coke oven 12 and can remove an exit door from the coke oven 12. After removing the exit door, the door removal device 20 can be moved away from the outlet end 16 of the coke oven 12 along the door removal rails 22. A retractable (or “push”) discharge piston 18 positioned adjacent to the inlet end 14 of the coke oven 12 pushes the hot coke and / or deposits out of the coke oven 12. In various embodiments, the discharge pressing piston 18 may include a pressing piston head sustained and driven by a piston arm. In some embodiments, all or part of the discharge pressure piston 18 is adjustable through a hydraulic system capable of vertical movement. In some embodiments, the discharge pressure piston 18 may include a device for removing an inlet end oven door 14 before pushing the coke / deposits out of the coke oven 12. As will be described in more detail below, the discharge pressure piston 18 may include or be coupled to a decarbonization system 50 configured to remove coke deposits 26 from the coke oven 12. In additional embodiments, the decarbonization system 50 and coke loading aspects of the system can use separate dedicated retractable pressing pistons.
    [0034] [034] In some embodiments, the decarbonization system 50 may provide high pressure removal of the coke deposits 26 from the coke oven 12. For example, in some embodiments, as will be discussed in more detail below, the decarbonization system 50 may include various scratch and / or scraping features to break compacted deposits and / or remove deposits from the furnace. In some embodiments, deposits 26 can be broken and / or removed continuously. As used in this document, the term "continuously" is used to indicate a breakdown or routine removal of deposits that occurs on a schedule more often than traditional annual oven cleaning. For example, continuous removal may indicate that deposits 26 are removed from the coke oven 12 at least monthly, weekly, daily, or each time a new coal load is inserted into the coke oven 12, as before, during, or after the load is inserted or removed.
    [0035] [035] A heating carriage 24 can be positioned adjacent to the outlet end 16 of the coke oven 12 for collecting hot coke and / or deposits 26 pushed from the oven by the discharge pressure piston 18. The "pressure carriage" heating "can comprise a flat-fired heating car, train, and / or a flat-fired heating car / blast cooling car combined. Once the hot coke or tanks 26 are loaded into the heating car 24, the car 24 can be transported on rails 28 to a blast cooling area 30. In the blast cooling area 30, the hot coke slag or deposits 26 on the heating carriage 24 can be pushed by a stationary thruster 32 onto a blast cooling car 34. Since the blast cooling car 34 receives hot coke or deposits 26, the blast cooling car 34 can be positioned in a blast cooling station 36 in which the hot coke or deposits 26 can be abruptly cooled with sufficient water to cool the coke or deposits 26 below a coking temperature. Various embodiments can use a combined heating car / blast cooling car that allows hot coke or deposits 26 to be transported directly from coke oven 12 to blast cooling station 36 using a single heating car. The briskly cooled coke can then be poured onto a receiving platform 38 for further cooling and transport to a coke storage area.
    [0036] [036] Figure 2 is a front view of a decarbonization system 250 configured according to the technology modalities. The decarbonization system 250 may include a pressing piston head 218 and one or more scraping plates 252 coupled to the pressing piston head 218 by one or more couplers 258. The pressing piston head 218 can be coupled to a piston pressure or discharge valve such as the discharge pressure piston 18 described above with reference to Figure 1A. In various embodiments, the scraping plate 252 may include a generally rigid surface made, for example, of steel, steel alloy, ceramic, or other refractory materials that are suitable for scraping or otherwise pushing the coking deposits a from a coke oven. The rigid surface may include one or more scraping grooves or projections shown in one or more different scraping patterns. In such embodiments, one or more patterns of scraping projections can be used to provide increased localized pressure on the co-qualifying deposits. In other embodiments, the surfaces of the scraping plate 252 are covered or at least partially embedded with abrasive materials, including ceramics, aluminum oxides, rubies, sapphires, diamonds and the like. In some embodiments, the scraping plate 252 can have a vertical thickness from about 0.635 cm (0.25 inch) to about 7.62 cm (3 inches), and in particular embodiments, it has a thickness of about 1.905 cm (0.75 inch). In various embodiments, the scraping plate 252 can extend over the entire width of the oven or a portion of the oven. In some embodiments, one or more scraping plates 252 can be coupled to the bottom and / or one or both sides of the pressing piston head 218. It is further contemplated that the decarbonisation system modalities 250 can position the scraping plates 252 behind the pressing piston head 218, as below a pressing piston arm extending from the pressing piston head 218.
    [0037] [037] In some embodiments, couplers 258 are movable to allow the scraping plate 252 to adjust vertically to follow the contour of the oven floor. For example, in some embodiments, couplers 258 may include a spring-loaded or hydraulic feature to provide adjustability to the scraping plate 252. In additional embodiments, couplers 258 may be fixed to prevent such adjustability. In some embodiments, if the oven floor is not level, the scraping plate 252 can slide over high points and fill low points with deposits, providing the benefit of maintaining a thin, protective and lubricating layer of slag or other deposits on the floor. .
    [0038] [038] Figure 3A is a front view of a decarbonisation system 350 configured according to additional modalities of the technology. The decarbonisation system 350 includes several features of the decarbonisation system 250 described above. For example, the decarbonisation system 350 includes a pressing piston head 318 configured to push coke and / or coking deposits from a coke oven. The decarbonisation system 350 additionally includes a plurality of scraper plates 352 coupled to the pressing piston head 318 by a plurality of couplers 358. Although the illustrated embodiment illustrates two scraper plates 352 oriented side by side over the width of the piston head pressing system 318, in additional modalities, the decarbonisation system 350 can include any number of scraper plates 352 in angled side-by-side configurations or other configurations on the pressing piston head 318. In some modalities, with the use of multiple plates of scraping 352, the de-carbonization system 350 can be allowed to follow the contours of a non-level oven floor more delicately. In addition, although the illustrated embodiment illustrates a single coupler 358 securing each scraping plate 352 to the pressing piston head 318, in additional embodiments, multiple couplers per scraping plate 352 can be used or scraping plates 352 can be coupled or integrated directly with the pressing piston head 318 without an intermediate coupler.
    [0039] [039] Figure 3B is a top plan view of a decarbonization system 350 configured according to additional modalities of the technology. In this modality, the decarbonization system 350 is similar to the decarbonization system 350 revealed in Figure 3A. However, Figure 3B reveals a modality in which the decarbonization system includes an additional scraping plate 352 that is coupled to the pressing piston arm 319. With reference to Figure 3C, a side elevation view of the decarbonization system 350 is revealed . In this embodiment, the additional scraper plate 352 is coupled to the pressing piston arm 319 with one or more couplers 358. Referring to figure 3A, the two front scraper plates 352 are oriented side by side over the width of the piston head. pressure plate 318, which forms a gap between the opposite ends of the two front scraping plates 352. In the embodiment shown in Figures 3B and 3C, the additional scraping plate 352 is positioned behind the two front scraping plates 352 and oriented so that a length of the additional scraping plate 352 is positioned behind the gap. Consequently, the three scraper plates 352 substantially cover the width of the pressing piston head 318. In yet other embodiments, as shown in Figure 3D, it is contemplated that the two front scraper plates 352 could be coupled to the pressing piston arms. 319, instead of the pressing piston head 318, as shown in Figures 3A to 3C.
    [0040] [040] Figures 3E and 3F reveal another modality of the decarbonization system 350 configured in accordance with additional modalities of the technology. In this modality, the decarbonization system 350 is similar to the decarbonization system 350 revealed in Figures 3A-3D. However, Figures 3E and 3F represent a modality in which a gap between the opposite ends of the two front scraping plates 352 is bridged by one or more resiliently deformable scraping features or, in the revealed embodiment, a plurality of elongated bristles 360. In the embodiment shown, the elongated bristles 360 extend out of the opposite end portions of the two front scraping plates 352 so that the lengths of the opposed elongated bristles 360 pass or overlap. In some embodiments, the elongated bristles 360 are formed from steel, an alloy of steel, or other materials capable of withstanding the temperatures of the coke oven and, although deformable resistant, provide an ability to scrape and remove at least some of the deposits of coke in which they come into contact. The elongated bristles 360 are shown to be straight and aligned in a parallel, separate way. However, it is contemplated that the elongated bristles could be curved, angled, rounded, or other known shapes. It is also contemplated that the elongated bristles 360 could overlap each other or angled up or down with respect to the two front scraping plates 352. In various embodiments, the elongated bristles 360 can be replaceable. In such embodiments, the sections or portions of the elongated bristles 360 may be removably or permanently held in position.
    [0041] [041] Figure 4A is a front view of a decarbonisation system 450 configured according to the modalities of the technology. The decarbonisation system 450 includes several features generally similar to the decarbonisation systems described above. For example, a scraper plate 452 is coupled to a pressing piston head 418. The pressing piston arm 419 can retractively support and guide the pressing piston head 418. In the illustrated embodiment, the scraping plate 452 includes a 454 chamfer edge to define a single-tipped scraper ski. In various embodiments, the chamfer edge 454 can be on both the pressing side and the accompanying side of the scraping plate 452. In some embodiments, the chamfer edge can allow the scraping plate 452 to slide along the oven floor. without tearing or excavating the floor material (for example, brick). The chamfer edge 454 can be smooth or include one or more scraping grooves or projections shown in one or more different scraping patterns. A plurality of scraping plates 452 can be positioned adjacent to one of several patterns, side by side, or in a stacked tracking configuration.
    [0042] [042] Figure 4B is a partially schematic side view of a 470 decarbonization system configured according to additional modalities of the technology. The decarbonisation system 470 is generally similar to the decarbonisation system 450 described above with reference to Figure 4A. However, in the embodiment illustrated in Figure 4B, the scraping plate 452 is coupled (for example, descending from) to a pressing piston arm 419 instead of a pressing piston head 418. The pressing piston arm 419 can support and retracting the pressing piston head 418 in a retractable manner. The rasp plate 452 can be coupled to the pressing piston arm 419 by a coupler 466. The coupler 466 can be fixed or movable as spring-loaded. In particular embodiments, the coupler 466 can provide a height-adjustable mechanism for adjusting a height of the scraping plate 452 in relation to the pressing piston head 418 and the oven floor. In various embodiments, a bottom surface of the scraper plate 452 can generally be coplanar or slightly above or below a bottom surface of the pressing piston head 418. The relative height of the pressing piston head 418 and the scraping plate 452 can be selected to level and better clean the oven floor without interfering with coke de-stripping operations. Although the scraper plate 452 is shown on an accompanying side of the pressing piston head 418, in additional embodiments, it can be on an anterior side of the pressing piston head 418. In addition, the scraping plate 452 or other scraping or scratching device can be alternatively or additionally coupled to the pressing piston head 418 or another location in the decarbonisation system 470.
    [0043] [043] The 470 decarbonization system modalities can be supplied with one or more scraping plates 452 having a wide variety of different configurations. For example, a scraper plate 452, coupled to coupler 466, can be provided with a pair of chamfer edges 454, positioned at opposite end portions of scraper plate 452. In this way, a chamfer edge 454 defines a portion of anterior edge of the scraping plate in each direction in which the decarbonisation system 470 is moved along a length of the furnace. In some embodiments, the pair of chamfer edges 454 can be supplied in lengths that are the same or different from each other. Scraper plate arrangements 452 may have chamfer edges 454 to extend upwards from a generally horizontal base plate of scraper plate 452 at an angle of approximately forty-five degrees. However, other embodiments may have the chamfer edges to extend upward at an angle that is at least slightly less than or greater than forty-five degrees. Similarly, the modalities of the scraping plates 452 can include chamfered or rounded edges in which the chamfered edges 454 meet the horizontal base plate, depending on the desired level of ease with which the scraping plates 452 engage the uneven edges or surfaces. coke deposits and the oven floor.
    [0044] [044] Figure 5 is a side view of a decarbonization system 550 configured according to additional modalities of the technology. Like the systems described above, the decarbonization system 550 includes a scraping plate 552 coupled to a pressing piston head 518. Scraping plate 552 includes chamfer edges 554 on both the pressing and tracking sides of scraping plate 552 for set a scraping ski with a pair of paddles and opposite ends. One or both of the chamfer edges 554 can be smooth or include one or more scraping grooves or projections shown in one or more different scraping patterns. A plurality of scraping plates 552 can be positioned adjacent to one of several patterns, side by side, or in a stacked tracking configuration.
    [0045] [045] The decarbonisation system 550 may additionally include a weight or ballast 556 configured to overload the decarbonisation system 550 against the coke oven floor. In various embodiments, ballast 556 can be coupled to a pressing piston (for example, pressing piston head 518 or another portion of a pressing piston) or to scraping plate 552. In additional modalities, there may be more or less ballast 556. In particular embodiments, ballast 556 comprises steel, an alloy of steel, or other refractory materials. In some embodiments, the pressing piston head 518 or scraping plate 552 can be uniformly or non-uniformly weighed to achieve consistent or varied downward pressure as desired.
    [0046] [046] Figure 6 is a side view of a decarbonisation system 650 configured according to additional modalities of the technology. The decarbonisation system 650 includes a generally flat scraping plate (for example, not chamfered) 652 coupled to a pressing piston head 618. In embodiments having more than one scraping plate 652, a combination of chamfered and non-chamfered plates can be used.
    [0047] [047] The 650 decarbonisation system additionally includes several risky features to create grooves or breaks in the coking deposits. For example, in the illustrated embodiment, the decarbonisation system 650 includes scratch teeth 670 along a bottom surface of the scraping plate 652 and a scratch bar 672 that extends out and down from the pressing piston head 618 Teeth 670 and bar 672 can groove or scratch the surface of the coke, resulting in fractures that separate highly compacted deposits into more easily removable pieces. In yet additional modalities, other risky resources such as a wheel, impactor, cutter, etc. can be used.
    [0048] [048] In some embodiments, deposits that have been separated by risky resources can be more easily pushed or otherwise removed from the coke oven. In various modalities, the risk resources can be used in conjunction with the de-supply of the furnace deposits, or they can be used separately. For example, in some embodiments, deposits can be scratched each time the deposits are scraped from the oven. In additional modalities, the risk of deposits can occur more frequently than the scraping of deposits, as the risk reduces the need for high pressure scraping. In other embodiments, deposit risk may occur less frequently than deposit scraping. In still additional embodiments, a risky feature can be coupled to a coke pressing piston while the scraping plate 652 is coupled to a separate decarbonization pressing piston that accompanies the coke pressing piston.
    [0049] [049] The risky features can be positioned on a pressing and / or tracking side of the pressing piston head 618, the scraping plate 652, on another device (for example, a pressing piston arm), or on a combination of these positions. In addition, various modalities may include risky features over (or partially over) the width and / or depth of the 618 pressure piston head. In addition, several risky features can be used individually or in combination. For example, although the decarbonisation system 650 includes both risk teeth 670 and a risk bar 672, in additional modalities, only one of these risk resources (or other risk resources) can be used.
    [0050] [050] Figure 7 is a side view of a decarbonization system 750 configured according to additional modalities of the technology. The decarbonisation system 750 includes a scraping plate 752 coupled to a pressing piston head 718 which is driven by a pressing piston arm 719. Scraping plate 752 includes at least one rounded edge. According to the chamfered scraping plates described above, the rounded edge on the scraping plate 752, shown in Figure 7, can prevent the scraping plate 752 from causing tears in the oven floor. Instead, the rounded edge can scrape or push the coking deposits from the oven floor while gliding over the floor. Although the rounded edge is shown on the pressing side of the pressing piston head 718, in additional embodiments, it can be on the accompanying side.
    [0051] [051] The decarbonisation system 750 can additionally include an optional weight or ballast 756 to press the pressing piston head 718 and scraping plate 752 down against the floor to increase contact and remove the tank by cleaning. For example, in the illustrated embodiment, ballast 756 is shown attached to the pressing piston head 718. In additional embodiments, one or more ballasts 756 can be additionally or alternatively coupled to the pressing piston arm 719, to the scraping plate 752, or they can be integral to any of these features. Some exemplary locations for alternative or additional positioning of the 756 ballasts are shown in dashed lines.
    [0052] [052] Figure 8 is a side view of an 850 decarbonization system configured according to additional technology modalities. The decarbonisation system 850 includes a scraping plate 852 coupled to a pressing piston head 818 that is driven by a pressing piston arm 819. Scraping plate 852 can be rounded on both the pressing and accompanying sides to prevent tearing in the oven floor both during extension and retraction movements of the pressing piston arm 819 in relation to the coking chamber. In some embodiments, the scraping plate 852 cannot be supplied in a flat plate-shaped configuration. Instead, some embodiments of the decarbonization system may use an elongated tube having a plurality of holes arranged along a length of the tube. An oxidizer, such as air or oxygen, can be directed through the pipe and holes at a rate that burns at least some, if not a substantial portion, of the coking deposits.
    [0053] [053] The decarbonisation system 850 can additionally include a plurality of cylinders (for example, an upper cylinder 860 and lower cylinders 862) attached to a release support structure (for example, release / loading machine, not shown) it is configured to support and allow the retractable movement of the pressure piston arm 819. In addition, or as an alternative to the weight systems described above that stimulate the contact between the scraping plate 852 and the oven floor, in some modalities, cylinders 860, 862 can be adjusted to provide a generally similar force. For example, the upper cylinder 860 can be adjusted upwards and / or the lower cylinders 862 can be adjusted downwards (in the direction of the arrows) to add downward force to the 818 cantilevered pressing piston head and / or scraping plate 852. The same relationship can be applied independently if the rasp plate 852 is attached to the pressing piston head 818 as shown or directly to the pressing piston arm 819 as shown in Figure 4B.
    [0054] [054] Figure 9 is a front view of a 950 decarbonization system configured according to the technology modalities. The decarbonisation system 950 may include a pressing piston head 918 and one or more scraping plates 952 coupled to the pressing piston head 918, or one or more pressing piston arms (not shown) by one or more 958 couplers The pressure piston head 918 can be coupled to a pressure or discharge piston like the discharge pressure piston 18 described above with reference to Figure 1A. In various embodiments, the scraping plate 952 will be constructed in a manner similar to other scraping plates or features described above. However, in certain embodiments, one or more resiliently deformable features or, in the depicted embodiment, a plurality of elongated bristles 960 extends outwardly from features other than the decarbonisation system 950. For example, elongated bristles 960 are represented as extending outward from the opposite end portions of the scraping plate 952 and opposite side portions of the pressing piston head 918. When positioned as shown, the elongated bristles 960 follow the contours of the side walls of the coke oven as the 950 decarbonisation system is pushed and retracted through the coke oven. The deformable nature of the elongated bristles 960 allows the elongated bristles 960 to follow uneven surfaces better than rigid scraping features. Similarly, the elongated bristles can be positioned to extend on top of a support frame 962 which is supported by connectors 964 on the pressing piston head 918 or pressing piston arms 919. In this way, the elongated bristles 960 can be positioned to follow the contours of the coke oven crown as the 950 decarbonisation system is pushed and retracted through the coke oven. In some embodiments, the elongated bristles 960 are formed from steel, an alloy of steel, or other materials capable of withstanding the temperatures of the coke oven and, although deformingly resistant, provide an ability to scrape and remove at least some coke deposits in which they come into contact. The elongated bristles 960 are shown to be straight and aligned in a parallel, separate manner. However, it is contemplated that the elongated bristles could be curved, angled, rounded, or other known shapes.
    [0055] [055] Figure 9B and Figure 9C reveal another modality of the decarbonization system 950 configured according to the modalities of the technology. The depicted embodiment of the decarbonisation system 950 includes a pressing piston head 918 and one or more scraping plates 952 coupled to the pressing piston head 918, or one or more pressing piston arms (not shown) by one or more couplers 958. In the depicted embodiment, the decarbonisation system 950 includes resiliently deformable scraping features or, in the depicted embodiment, the resilient scraping plates 966 which are connected to opposite side portions of the pressing piston head 918 by resiliently deformable couplers 967. When positioned as shown, scraper plates 960 follow the contours of the side walls of the coke oven as the decarbonisation system 950 is pushed and retracted through the coke oven. The deformable nature of the resiliently deformable couplers 967 allows the scraper plates 960 to extend and retract from the pressing piston head 918 and follow the varying distances of the decarbonisation system 950 and the coke oven walls. Scraping plates 960 can be formed from materials similar to those used to form scraping plate 952, such as steel, steel alloys, ceramics and the like. In some embodiments, the resiliently deformable 967 couplers are formed of steel, an alloy of steel, or other materials capable of withstanding the temperatures of the coke oven and, although deformablely resistant, durable enough to support the 960 scraping plates while they scrape the side walls of the coke oven.
    [0056] [056] Figure 10A and Figure 10B show a modality of a scraper 1000 that can be used with a decarbonization system configured according to the technology modalities. In the embodiment shown, scraper 1000 includes an elongated scraper body 1002 having a scraper plate 1004 having a front chamfer edge 1006 and a rear chamfer edge 1008. In various embodiments, scraper plate 1004 can include a generally rigid surface made, for example, of steel, alloy steel, ceramics, or other refractory materials that are suitable for scraping or otherwise pushing the coking deposits from a coke oven. The rigid surface may include one or more scraping grooves or projections shown in one or more different scraping patterns. In such embodiments, one or more patterns of scraping projections can be used to provide increased localized pressure on the coking deposits. In other embodiments, the scraping plate 1004 surfaces are covered or at least partially embedded with abrasive materials, including ceramics, aluminum oxides, rubies, sapphires, diamonds and the like. In some embodiments, the scraping plate 1004 can have a vertical thickness from about 0.635 cm (0.25 inch) to about 7.62 cm (3 inches), and in particular embodiments, it has a thickness of about 1.905 cm (0.75 inch). In various embodiments, the scraping plate 1004 can extend over the entire width of the oven or a portion of the oven.
    [0057] [057] Scraper 1000 additionally includes a plurality of elongated scraper shoes 1010 coupled to scraper body 1002 so that scraper shoes 1010 are horizontally spaced from each other. In various embodiments, scraper shoes 1010 extend backwards and perpendicularly from scraper body 1002. Scraper shoes 1010 include scraper skis 1012 and may include a generally rigid surface made of, for example, steel, steel alloy, ceramic , or other refractory materials that are suitable for scraping or otherwise pushing the coking deposits from a coke oven. According to the scraping plate, the rigid surface of the scraping skis 1012 can include one or more scraping grooves or projections presented in one or more different scraping patterns and can be covered or at least partially embedded with abrasive materials, including ceramics, aluminum oxides, rubies, sapphires, diamonds and the like. In some embodiments, scraping skis 1012 have a vertical thickness from about 0.635 cm (0.25 inch) to about 7.62 cm (3 inches), and in particular modalities, they have a thickness of about 1.905 cm (0.75 inch). Scraping skis 1012 include a front chamfer edge (not shown) and a rear chamfer edge 1014. The front chamfer edge and rear chamfer edge 1014 can extend upwards from the bottom of the scraper skis 1012 in several angles according to the desired scraping operations. In the embodiment shown, the front chamfer edge and the rear chamfer edge 1014 extend upwards from the base of the scraping ski at angles of forty-five degrees. With reference to Figure 10B, the scraper 1000 can be coupled to the pressing piston head arms 1016 of a pressing piston by one or more couplers (not shown). It is contemplated, however, that the scraper 1000 is coupled to a pressing piston head 1020.
    [0058] [058] In various embodiments, the bottom surfaces of the 1012 scraping skis are positioned to be coplanar with each other. In some embodiments, the bottom surfaces of the scraping surfaces 1012 are positioned to be coplanar with a bottom surface of the scraper body 1002. In such cases, the scraper 1000 has a uniform bottom surface and any weight received by the oven floor of coke from the scraper 1000 is uniformly dispersed over the coke oven floor 64. Figure 11 shows a previous schematic representation of such modalities. In such embodiments, however, it is contemplated that the crown portions of the sill boiler tubes 66 may be damaged under the weight of the decarbonization system. In other embodiments, however, the bottom surfaces of the scraping surfaces 1012 are positioned to be parallel, but below a plane on which the bottom surface of the scraper body 1002 resides. In some embodiments, the two planes can be separated by less than 2.54 cm (one inch). In other modalities, they can be separated by 5.08 or 7.62 cm (two or three inches), depending on the conditions present in the coke oven. Figure 12 shows such an embodiment. Scraper shoes 1010 are positioned along a length of scraper body 1002 so that scraper shoes 1010 are positioned above and aligned with the sill boiler tube walls 68 associated with sill boiler tubes 66. In this way, a substantial portion of any weight received by the coke oven floor 64 from scraper 1000 is received by the hearth boiler tube walls 68 of hearth boiler tubes 66. In addition, greater support is provided for the decarbonisation system and the sill boiler tubes 66 are less likely to be damaged by scraping operations. Such modalities of the scraper 1000 additionally provide the opportunity to have one or more resiliently deformable scraping features or, in the embodiment shown, a plurality of elongated bristles 1060 extends outwardly from different features of the scraper 1000. For example, the elongated bristles 1060 are represented as extending outwardly from the bottom surface of the scraping plate 1004 on each side of the scraper shoes 1010. In this way, the additional scraping of coking deposits occurs without transferring more weight to the other areas of the screed floor. coke oven 64.
    [0059] [059] Figure 13 is a block diagram illustrating a 1300 method of decarbonizing a coke deposit coke oven according to the technology modalities. In block 1302, method 1300 may include processing a coal load in the coke oven. In various embodiments, the coke oven comprises a floor, a crown, and a plurality of side walls that connect the floor and the crown. In some embodiments, the coal load comprises loose coal with an unmolded load. In block 1304, method 1300 may include removing the charge from the coke oven. In block 1306, method 1300 may include scraping at least a portion of coking deposits from the coke oven floor, where scraping is carried out at least monthly. In several modalities, the scraping can occur simultaneously, before, or after the load removal step. In particular modalities, the scraping can occur at least monthly, at least daily, or each time the load is inserted or removed from the coke oven. In various modalities, the scraping is carried out by passing a scraper along or over the coke oven floor or a plurality of times.
    [0060] [060] In several modalities, scraping can be carried out using any of the decarbonisation systems described above. For example, in some embodiments, scraping includes using a scraper having at least one rounded or chamfered edge close to the coke oven floor. In additional embodiments, scraping includes using a scraper having one or more plates that substantially follow an outline of the coke oven floor during scraping. In particular embodiments, the scraper is at least partially made of steel, an alloy of steel, or a ceramic material. In some embodiments, scraping is performed by a scraper including a pressing piston head having a ballast attached to it. In some embodiments, the 1300 method may additionally include streaking a deposit surface using any risky resource such as those described above.
    [0061] [061] Figure 14 is a block diagram illustrating a 1400 method of operating a coking oven according to the technology modalities. In blocks 1402 and 1404, method 1400 may include inserting a loose coal charge into the coke oven and heating the coal. In block 1406, method 1400 may further include removing at least a portion of the charge, abandoning coke deposits in the coke oven. In block 1408, method 1400 may include continuously removing at least a portion of the deposits from the coke oven. For example, in various embodiments, deposits can be removed from the coke oven at least daily or each time a new coal load is inserted into the coke oven. In some embodiments, the method also includes maintaining a substantially level surface on a coke oven floor. EXAMPLES
    [0062] [062] The following Examples are illustrative of various modalities of the present technology.
    [0063] [063] 1. A method of decarbonizing a coke oven coke oven, the method comprising: processing a coal load in the coke oven, wherein the coke oven comprises a plurality of internal surfaces including a floor, a crown, and side walls that extend between the floor and the crown; remove the charge from the coke oven; and remove coking deposits from the coke oven, while removing the charge from the coke oven.
    [0064] [064] 2. Example method 11 in which removing the coking deposits from the coke oven comprises scraping at least a portion of the coking deposits with a scraper functionally coupled to a pressing piston.
    [0065] [065] 3. Example method 1 in which removing the coking deposits from the coke oven involves scraping the coking deposits with a scraper having at least one rounded or chamfered edge adjacent to at least one internal surface of the furnace. coke.
    [0066] [066] 4. Example method 1 in which removing co-qualifying deposits from the coke oven comprises scraping the coking deposits with a scraper having one or more plates that substantially follow an outline of at least one of the internal surfaces the coke oven during scraping.
    [0067] [067] 5. The example method 1, which additionally comprises streaking a surface of the coking deposits.
    [0068] [068] 6. The method of example 1, in which removing coking deposits from the coke oven comprises passing a scraper along at least one internal surface of the coke oven only once, with this the scraper is pushed along the length of the coke oven and then retracted along the length of the coke oven.
    [0069] [069] 7. The method of example 1 in which removing coking deposits from the coke oven comprises passing a scraper over at least one internal surface of the coke oven a plurality of times.
    [0070] [070] 8. Example method 7 in which removing coking deposits from the coke oven comprises scraping the coking deposits with a scraper comprised of at least one resiliently deformable scraping feature that substantially follows a hair contour least one of the internal surfaces of the coke oven during scraping.
    [0071] [071] 9. Example method 1 in which removing coking deposits from the coke oven involves scraping the coking deposits with a scraper comprised of steel, a steel alloy, or ceramic.
    [0072] [072] 10. The method of example 1 in which removing coking deposits from the coke oven involves scraping the coking deposits with a scraper comprised of an abrasive.
    [0073] [073] 11. The example method 1 in which removing coking deposits from the coke oven involves scraping the coking deposits with a scraper functionally coupled to a pressing piston head of a pressing piston.
    [0074] [074] 12. Example method 11 in which a weight is functionally coupled to the pressing piston.
    [0075] [075] 13. The example method 1 in which removing co-qualifying deposits from the coke oven comprises scraping the coking deposits with a scraper functionally coupled to a pressing piston arm of a pressing piston.
    [0076] [076] 14. Example method 13 in which a weight is functionally coupled to the pressing piston.
    [0077] [077] 15. Example method 11 in which removing the coking deposits from the coke oven comprises scraping coking deposits from a plurality of internal surfaces of the coke oven with a plurality of scrapers operably coupled to a piston pressure.
    [0078] [078] 16. Example method 1 in which removing co-qualifying deposits from the coke oven comprises scraping the coking deposits with a scraper comprised of at least one resiliently deformable scraping feature that substantially follows a hair contour least one of the internal surfaces of the coke oven during scraping.
    [0079] [079] 17. Example method 16 wherein the at least one resiliently deformable scraping feature includes a plurality of elongated bristles functionally coupled to a pressing piston so that the free end portions of the bristles are turned towards at least one internal surface of the coke oven.
    [0080] [080] 18. Example method 16 wherein the at least one resiliently deformable scraping feature includes at least one elongated scraping bar operably coupled to a pressing piston with at least one resiliently deformable hinge so that a portion front edge of at least one elongated scraping bar is positioned adjacent to at least one internal surface of the coke oven.
    [0081] [081] 19. Example method 16 wherein the scraper includes a plurality of resiliently deformable scraping features that substantially follow the contours of a plurality of internal surfaces of the coke oven during scraping.
    [0082] [082] 20. The method of example 1 in which removing coking deposits from the coke oven comprises scraping the coking deposits with a plurality of scrapers operably coupled to a pressing piston.
    [0083] [083] 21. Example method 20 wherein the plurality of scrapers includes at least two elongated scrapers functionally coupled to a pressing piston so that the elongated scrapers are positioned side by side with lengths of the scrapers extending perpendicularly to a length of the coke oven during scraping.
    [0084] [084] 22. Example method 21 wherein the elongated scrapers are positioned to be coaxially aligned to each other and horizontally separated to define a gap between the elongated scrapers.
    [0085] [085] 23. Example method 22 wherein the scraper includes a plurality of resiliently deformable scraping features that extend outward from the elongated scrapers into the gap between the elongated scrapers.
    [0086] [086] 24. Example method 23 wherein the plurality of resiliently deformable scraping features of adjacent elongated scrapers intersect each other in the gap between the elongated scrapers.
    [0087] [087] 25. Example method 22 wherein the scraper includes a third elongated scraper functionally coupled to the pressing piston behind the at least two elongated scraper and positioned so that a length of the third elongated scraper is behind the gap between the elongated scrapers to engage the coking deposits that cross the gap during scraping.
    [0088] [088] 26. Example method 1 in which removing co-qualifying deposits from the coke oven involves scraping the coking deposits with a scraper comprised of at least one resiliently deformable scraping feature that substantially follows an outline of the crown the coke oven during scraping.
    [0089] [089] 27. Example method 1 in which removing co-qualifying deposits from the coke oven involves scraping the coking deposits with a scraper comprised of at least one resiliently deformable scraping feature that substantially follows an outline of the walls sides of the coke oven during scraping.
    [0090] [090] 28. Example 1 method in which removing coking deposits from the coke oven involves scraping the coking deposits on the coke oven floor where a flat layer of coking deposits remains on the oven floor of coke after scraping.
    [0091] [091] 29. Example method 1 in which removing coking deposits from the coke oven comprises scraping at least a portion of the coking deposits with a scraper functionally coupled to a pressing piston; the scraper including an elongated scraper body that extends perpendicularly to a length of the coke oven during scraping and a plurality of elongated scraper shoes coupled to the scraper body so that the scraper shoes are horizontally spaced from each other and extend parallel to the length of the coke oven during scraping.
    [0092] [092] 30. Example method 29 wherein the plurality of scraper shoes includes soles that are coplanar to each other and vertically spaced below a plane on which a scraper base sole resides, thereby a substantial portion of a weight of scraper received by the coke oven floor is received below the soles of the scraper shoes during scraping.
    [0093] [093] 31. Example method 30 in which the plurality of scraper shoes is positioned along a length of the scraper body so that the scraper shoes are positioned above and aligned with the sill boiler tube walls below the coke oven floor during scraping.
    [0094] [094] 32. A coking system, comprising: a coke oven comprising a plurality of internal surfaces including a floor, a crown, and opposite side walls between the floor and the crown; a pressing piston configured to push a load of coke from the oven; and an alternatively mobile decarbonisation system along a length of the coke oven.
    [0095] [095] 33. The example system 32 in which the decarbonisation system is functionally coupled to the pressing piston.
    [0096] [096] 34. The example system 32 in which the decarbonisation system comprises a scraper having at least one rounded or chamfered edge close to at least one of the internal surfaces of the coke oven.
    [0097] [097] 35. The example system 34 in which the decarbonisation system comprises a scraper having at least one weight attached to it.
    [0098] [098] 36. The example system 32 in which the decarbonisation system comprises a scraper having one or more scraping features that substantially follow an outline of one or more internal surfaces of the coke oven.
    [0099] [099] 37. The example system 32 in which the decarbonisation system is comprised of steel, an alloy of steel, or ceramic.
    [0100] [0100] 38. The example system 32 in which the decarbonization system is comprised of an abrasive.
    [0101] [0101] 39. The example system 32 in which the decarbonisation system is functionally coupled to a pressing piston head of a pressing piston.
    [0102] [0102] 40. The example system 39 in which a weight is functionally coupled to the pressing piston.
    [0103] [0103] 41. The example system 32 in which the decarbonisation system is functionally coupled to a pressing piston arm of a pressing piston.
    [0104] [0104] 42. The example system 41 in which a weight is functionally coupled to the pressing piston.
    [0105] [0105] 43. The example system 32 in which the decarbonisation system is comprised of at least one resiliently deformable scraping feature which is configured to substantially follow a contour of at least one of the internal surfaces of the coke oven during a scraping movement.
    [0106] [0106] 44. Example system 43 wherein the at least one resiliently deformable scraping feature includes a plurality of elongated bristles functionally coupled to a pressing piston so that the free end portions of the bristles are turned towards at least one internal surface of the coke oven.
    [0107] [0107] 45. Example system 43 wherein the at least one resiliently deformable scraping feature includes at least one elongated scraping bar operably coupled to a pressing piston with at least one resiliently deformable hinge so that a portion front edge of at least one elongated scraping bar can be selectively positioned adjacent to at least one internal surface of the coke oven.
    [0108] [0108] 46. The example system 32 in which the decarbonisation system is comprised of a plurality of scrapers operably coupled to a pressing piston.
    [0109] [0109] 47. The example system 46 wherein the plurality of scrapers includes at least two elongated scrapers functionally coupled to a pressing piston so that the elongated scrapers are positioned side by side with lengths of the scrapers extending perpendicularly to a length of the pressing piston.
    [0110] [0110] 48. The example system 47 in which the elongated scrapers are positioned to be coaxially aligned to each other and horizontally separated to define a gap between the elongated scrapers.
    [0111] [0111] 49. Example system 48 wherein the scraper includes a plurality of resiliently deformable scraping features that extend outward from the elongated scrapers into the gap between the elongated scrapers.
    [0112] [0112] 50. The example system 49 wherein the plurality of resiliently deformable scraping features of adjacent elongated scrapers intersect each other in the gap between the elongated scrapers.
    [0113] [0113] 51. Example system 48 wherein the scraper includes a third elongated scraper functionally coupled to the pressing piston behind the at least two elongated scrapers and positioned so that a length of the third elongated scraper is behind the gap between the elongated scrapers.
    [0114] [0114] 52. The example system 32 in which the decarbonisation system is comprised of at least one resiliently deformable scraping feature which is positioned to extend above the decarbonisation system and adapted to substantially follow a contour of the crown of the coke oven.
    [0115] [0115] 53. The example system 32 in which the decarbonisation system is comprised of at least one resiliently deformable scraping feature which is positioned to extend out of the side portions of the decarbonisation system and adapted to substantially follow an outline of the side walls of the coke oven.
    [0116] [0116] 54. The example system 32 in which the decarbonisation system is functionally coupled to a pressing piston; the decarbonisation system including an elongated scraper body that extends perpendicularly to a length of the pressing piston and a plurality of elongated scraper shoes coupled to the scraper body so that the scraper shoes are horizontally spaced from each other, extending parallel to the length of the pressing piston.
    [0117] [0117] 55. Example system 54 wherein the plurality of scraper shoes includes soles that are coplanar with each other and vertically spaced below a plane on which a scraper base sole resides.
    [0118] [0118] The present technology offers several advantages over traditional decarbonization systems and methods. For example, traditional decarbonisation occurs very sporadically, causing a large amount of deposits to accumulate on the oven floor and reducing the efficiency and efficiency of the coke oven. The present technology provides for the regular removal of coking deposits to allow coke production to continue, to allow the coking plant to maintain a constant oven volume, and to provide the plant with a higher coke yield. In addition, with the continuous decarbonization of the furnaces, less thermal and mechanical stress is placed on the coking equipment that could traditionally suffer a great amount of wear during sporadic decarbonization. In addition, the continuous scraping systems described in this document can make uneven coke oven floors become level and smooth for easier coal removal.
    [0119] [0119] From the previous description, it will be assessed that, although specific modalities of the technology have been described in this document for illustrative purposes, several modalities can be done without departing from the spirit and scope of the technology. For example, although several modalities have been described in the context of loose hard coal with unmolded load, in additional modalities, decarbonisation systems can be used in conjunction with hard coal with molded load. Additionally, although several modalities describe the decarbonization carried out on an oven floor, in additional modalities, other surfaces of the ovens, such as the walls, can be decarbonized. In addition, certain aspects of the new technology described in the context of particular modalities can be combined or eliminated in other modalities. In addition, although the advantages associated with certain modalities of technology have been described in the context of those modalities, other modalities may also exhibit such advantages, and not all modalities need necessarily exhibit such advantages to be included within the scope of the technology. Consequently, the disclosure and associated technology may cover other modalities not expressly shown or described in this document. Accordingly, the disclosure is not limited except by the appended claims.
    权利要求:
    Claims (14)
    [0001]
    Decarbonization method of a coke deposit coke oven, CHARACTERIZED by the fact that the method comprises: processing a load of coal in the coke oven, wherein the coke oven comprises a plurality of internal surfaces including a floor, a crown, and side walls extending between the floor and the crown; remove the charge from the coke oven; and removing coke deposits from the coke oven, while removing the charge from the coke oven, by scraping at least a portion of the coke deposits with a scraper or a plurality of scraps comprised of at least one resiliently deformable scraping feature that substantially accompanies a contour of at least one of the internal surfaces of the coke oven during scraping, wherein preferably at least one resiliently deformable scraping feature includes a plurality of elongated bristles functionally coupled to a pressing piston so that the end portions free of the bristles are directed towards at least one internal surface of the coke oven.
    [0002]
    Method according to claim 1, CHARACTERIZED by the fact that the scraper is functionally coupled to a pressing piston head or a pressing piston arm of a pressing piston, in which preferably a weight is coupled in a way functional with the pressing piston.
    [0003]
    Method according to claim 1, CHARACTERIZED by the fact that it additionally comprises scratching a surface of the coke deposits on the coke oven floor with one or more scratching features.
    [0004]
    Method according to claim 1, CHARACTERIZED by the fact that removing coke deposits from the coke oven comprises passing a scraper along at least one internal surface of the coke oven only once or a plurality of times, through which the scraper is pushed along a length of the coke oven and then retracted along the length of the coke oven.
    [0005]
    Method according to claim 1, CHARACTERIZED by the fact that removing coke deposits from the coke oven comprises scraping coke deposits from a plurality of internal surfaces of the coke oven with a plurality of scrapers operably coupled to a piston of pressing.
    [0006]
    Method according to claim 1, CHARACTERIZED by the fact that removing coke deposits from the coke oven comprises scraping the coke deposits on the coke oven floor where a flat layer of coke deposits remains on the coke oven floor after scraping.
    [0007]
    Method according to claim 1, CHARACTERIZED by the fact that removing coke deposits from the coke oven comprises scraping at least a portion of the coke deposits with a scraper functionally coupled to a pressing piston; the scraper including an elongated scraper body that extends perpendicularly to a length of the coke oven during scraping and a plurality of elongated scraper shoes coupled to the scraper body so that the scraper shoes are horizontally separated from each other and extend parallel to the length of the coke oven during scraping, wherein preferably the plurality of scraper shoes includes soles that are coplanar to each other and vertically separated under a plane in which a scraper base sole resides, through which a substantial portion of a scraper weight received by the coke oven floor is received under the soles of the scraper shoes during scraping, wherein preferably the plurality of scraper shoes is positioned along a length of the scraper body so that the scraper shoes are positioned above and aligned with sill boiler tube walls under the coke oven floor during scraping.
    [0008]
    Coking system CHARACTERIZED by the fact that it comprises: a coke oven comprising a plurality of internal surfaces including a floor, a crown and side walls opposite between the floor and the crown; a pressing piston configured to push a load of coke from the oven; and a reciprocally movable decarbonisation system along a length of the coke oven; the decarbonisation system including a scraper or a plurality of scrapers configured to substantially follow a contour of at least one of the internal surfaces of the coke oven during a scraping movement, wherein preferably the at least one resiliently deformable scraping feature includes a plurality of elongated bristles functionally coupled to a pressing piston so that the free end portions of the bristles are directed towards at least one internal surface of the oven. coke, or wherein the at least one resiliently deformable scraping feature includes at least one elongated scraping bar operably coupled to a pressing piston with at least one resiliently deformable hinge so that a leading edge portion of the at least one bar elongated scraping is selectively positioned adjacent to at least one internal surface of the coke oven.
    [0009]
    System according to claim 8, CHARACTERIZED by the fact that the decarbonization system is functionally coupled to a pressing piston head or pressing piston arm, where preferably a weight is functionally coupled with the piston pressure.
    [0010]
    System according to claim 8, CHARACTERIZED by the fact that the decarbonization system comprises a scraper or a plurality of scrapers having at least one rounded or chamfered edge close to at least one of the internal surfaces of the coke oven, wherein the decarbonisation system preferably comprises a scraper having at least one weight attached to it.
    [0011]
    System according to claim 8, CHARACTERIZED by the fact that the decarbonization system comprises a scraper having one or more scraping features that substantially accompany a contour of one or more internal surfaces of the coke oven.
    [0012]
    System, according to claim 8, CHARACTERIZED by the fact that the decarbonization system is comprised of an abrasive.
    [0013]
    System according to claim 8, CHARACTERIZED by the fact that the plurality of scrapers includes at least two elongated scrapers functionally coupled to a pressing piston so that the elongated scrapers are positioned side by side with lengths of the scrapers extending perpendicular to a length of the pressing piston, wherein the elongated scrapers are preferably positioned coaxially aligned to each other and horizontally separated to define a gap between the elongated scrapers, wherein the scraper includes a plurality of resiliently deformable scraping features that extend outward from the elongated scrapers within the gap between the elongated scrapers, wherein preferably the plurality of resiliently deformable scraping features of the adjacent elongated scrapers intertwine with each other in the gap between the elongated scrapers, wherein the scraper preferably includes a third elongated scraper operably coupled to the pressing piston behind the at least two elongated scrapers and positioned so that a length of the third elongated scraper is behind the gap between the elongated scrapers.
    [0014]
    System according to claim 8, CHARACTERIZED by the fact that the decarbonisation system is comprised of at least one resiliently deformable scraping feature that is positioned to extend upwards from the decarbonisation system and substantially adapted to accompany a crown contour from the coke oven, or at least one resiliently deformable scraping feature that is positioned to extend out of side portions of the decarbonization system and adapted to substantially follow an outline of the side walls of the coke oven, or the decarbonization system including an elongated scraper body that extends perpendicularly to a length of the pressing piston and a plurality of elongated scraper shoes coupled to the scraper body so that the scraper shoes are horizontally separated from each other, extending in parallel the length of the pressing piston, wherein preferably the plurality of scraper shoes includes soles that are coplanar to each other and vertically separated under a plane on which a sole of the scraper base resides.
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    同族专利:
    公开号 | 公开日
    PL3090034T3|2020-10-05|
    CN105916965B|2021-02-23|
    US20150247092A1|2015-09-03|
    EP3090034B1|2020-05-06|
    EP3090034A1|2016-11-09|
    WO2015103414A1|2015-07-09|
    EP3090034A4|2017-05-17|
    US20200407641A1|2020-12-31|
    CN105916965A|2016-08-31|
    US10619101B2|2020-04-14|
    CA2935325A1|2015-07-09|
    CN112251246A|2021-01-22|
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    法律状态:
    2019-07-30| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-12-01| B09A| Decision: intention to grant|
    2021-02-17| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 31/12/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US201361922614P| true| 2013-12-31|2013-12-31|
    US61/922,614|2013-12-31|
    PCT/US2014/073034|WO2015103414A1|2013-12-31|2014-12-31|Methods for decarbonizing coking ovens, and associated systems and devices|
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