• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Disclosed is an installation for the treatment and handling of metallurgical slag which includes means for the disintegration of a flow of pyroplastic slag by mechanical impacts and cooling means for the cooling of the particles of slag formed by the disintegration. The installation comprises at least one perforated endless band positioned in the path of fall of the particles of slag projected by the disintegration means and cooled by the said cooling means. The installation also comprises an insulating enclosure positioned immediately above the perforated band and which contains the disintegration and cooling means, and means for trapping the ascending gaseous and/or solid by-products.
    公开号:SU963460A3
    申请号:SU772532502
    申请日:1977-10-11
    公开日:1982-09-30
    发明作者:Лежиль Эдуард；Хайнц Карло
    申请人:С.А.Дез Ансьен Этаблиссман Поль Вюрт (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to the processing and transportation of a metallurgical donkey, as well as the crushing of a stream of pyroplastic slag by mechanical shocks and the cooling of slag particles by means of a crushing.
    The closest to the technical essence of the invention is a device for the manufacture of porous materials from fiery-liquid metallurgical donkeys, which contains an adjacent chamber, a device for dispersing and cooling slag melt mounted on its entrance, a screen mounted in front of it, and at least one perforated tape conveyor installed under the chamber and mounted in the upper part of the chamber devices for cleaning exhaust gases and trapping solid particles
    A disadvantage of the known device is that it allows to obtain only one usable, product, HanpKMepj, slag grains with a variable particle size distribution. One or several other products that are formed simultaneously as the main product are by-products or waste products, and they should either be returned to the cycle or left in the main product with or without intermediate treatment.
    The purpose of the invention is to provide the ability to process the melt.
    irf simultaneously or separately in granulated slag, slag pumice and mineral wool.
    This goal is achieved by the fact that, in an installation for processing metallurgical, slag melt, contains a receiving chamber, a device for dispersing and cooling slag melt, mounted in front of it, is located at the entrance to it.
    20, with a screen, at least vEpe, one perforated belt unit, an exporter mounted with a chamber, and flue gas cleaning devices mounted at the top of the chamber
    25 and for capturing solid particles, with a 4n camera made with hoppers mounted above the perforated conveyor belt with flaps in their lower part. In addition, it is advisable to install the installation with additional screens installed above each bunker. The perforated belt is mounted perpendicular or parallel to the axis of the device for dispersing and cooling the slag melt. Parallel to the axis of the device for the diffusion and cooling of slag E asplav, a perforated belt conveyor is installed under each boxer. - In FIG. 1 schematically shows a device, a longitudinal section; in fig. 2 shows section A-A in FIG. one; in fig. 3 - the device, a longitudinal section with several perforated belt conveyors, installed -. under each bin parallel to the axis of the device for dispersing and cooling the slag melt. A device for processing metallurgical slag melt comprises a receiving chamber 1 with a wall a device for dispersing and cooling slag melt, made in the form of a rotating drum 3 with blades. The slag enters the drum 3 through the chute 4 and the 1-sided plane 5. To introduce the necessary quantities of water into the channel 4, the inclined plane 5, and a water supply pipeline is provided inside the rotating drum 3 and a device 7 for monitoring the temperature of the water 8 resulting from the rotation of the drum 3 a bundle 8 of pulverized slag is formed. The perforated belt transport 9 is driven around two cylinders 10 and 11 by known means (not shown). A third cylinder 12 may also be provided for regulating the tension of the perforated conveyor and / or for both livers of sufficient distance between the upper branch and the lower branch so that a collection of water 13 can be placed there. The perforated belt conveyor 9 may, for example, be formed by a tape or a metal wire mesh. Such a tape is in fact a flexible wire formed by stainless steel wire. Its length and width can be adapted to the capacity of the furnace equipped with this installation. In the experiment with drum 3 with a length of 1) 80 m, the conveyor belt 1 is 1.5 m wide. This width of the perforated conveyor 9 is relatively narrow compared to the length of the drum 3 and the receiving chamber 1 has a special shape. proximity to the perforated belt 1 conveyor 9, immediately after turning the conveyor belt around the cylinder 11. Receiving chamber 1 is made with wall 2 closed everywhere except for the smallest possible holes at the level of bar Ban perforated conveyor 3 and 9. There are a number of additional holes in the slots 14 to the level of air. The maximum reduction in the number of holes required is provided in order to significantly reduce the flow of noise created at the level of drum 3 to the outside. For the same reason, it is preferable to make the wall 2 in such a way that it contributes to this reduction in noise transmission, providing, for example, a large part of the wall of concrete. Concrete, moreover, has an advantage over metal as it is better resistant to corrosive effects. The device 15 for cleaning or neutralizing gases produced in the receiving chamber 1 prevents the gases, which are possibly toxic, from being thrown out. The mineral wool return device 16 is formed by an infinite llf filter rotating around two cylinders. This filter is formed by a "relatively thin metal mesh to which mineral wool fibers are attached. This filter is set in motion by means of 1m (not shown) at a rate depending on the amount of mineral produced | Noah wool dp in order to evacuate the fibers retained by the cells as they are trapped. The scraper 18, located outside the receiving chamber 1, serves to remove the mineral wool attached to the filter 17 and dump it into the reservoir 19. The lower part of the receiving chamber 1 has a trapezoidal shape, which makes it possible to reduce the width of the perforated conveyor 9. A screen 20 is provided to allow water to spray all over the inside of the wall 2f. The screen can be lowered and raised using known means (not shown). At the beginning of the operation, when water is introduced into the operating system before the molten slag is introduced, the screen must be lowered in front of the drum 3. As soon as the putty falls on the drum 3, the screen 20 rises to the position shown in FIG. 1. Hardened slag particles are discharged by the conveyor 9 into the body 21 of the transport machine located outside the receiving chamber 1. The tubular irrigator 22 is used directly to irrigate the perforated conveyor 9. before it enters camera 1 in order to form a thin water film on this tape. This gives a double advantage - the prevention of the premature destruction of the tape due to falling is still too much; hot particles and j at the same time beam: meie cooling and solidification of the latter. The water that flows through the cells of the perforated conveyor 9 is collected in the collector 13. This water is clean enough to be recycled into the installation, resulting in no need for a waste treatment and treatment installation. To this end, the water passes through the temperature control device 7, where it is mixed in the right quantities with cold water to obtain the desired temperature of the water entering the slag treatment process. This return of water to the cycle allows for an additional ecc of water. The final tubular sprinkler 23 is activated in the case when the temperature of the slag layer withdrawn from chamber 1 is too high. Auxiliary cooling is provided by a blower 24, which is activated when the temperature of the solidified slag is not sufficiently low. This auxiliary cooling may be air, from which additional drying occurs. It is possible to automatically switch on the sprinkler 23 and blowing 24 using thermocouples (not shown). The receiving chamber 1 is divided in the direction of the trajectory of the slag particles scattered by the drum 3 into several compartments forming intermediate storage bins 25-27 of reception and storage. This separation is obtained by using partitions 28 and 29, which are perpendicular to the movement of the perforated conveyor 9 in the lower trapezoidal part of chamber 1. A damper 30 is located at the bottom of each of these bins 25-27 from opening or closing the corresponding bin. The closing organ of this flap is formed by a cylindrical surface capable of rotating around the center of its curvature. Controlling each of these three dampers is provided by means (not shown); for example hydraulic jacks. At least one of the side walls 31 of each of the hoppers 25-27 can move around the hinge 32 connecting this movable part 31 to the rest of the wall 2 of the chamber 1 Each of these movable walls 31 is brought in around the hinge 32 by a hydraulic jack 33. The jack 33 is actuated when the silo with which it is connected is emptied to stimulate flow on the conveyor 9, i.e. to prevent the formation of a bridge inside and to crush clumps of slag that could form there and block the exit. The mobility of the wall 31 is also resorted to increasing or decreasing the outlet of the hopper, i.e. bunker capacity. A conduit 34 is connected to each of the hoppers 25-27 to introduce into the corresponding bunker a cooling substance that is formed by water, steam or air. Panels 35 and 36 are located in the receiving chamber 1, affecting the sorting of slag particles, carried out under the action of centrifugal force. These panels are installed by means in such a way that they can be deeper or finer lowered into bundle 8 of 3 donuts scattered by the drum and direct certain categories of particles into one or the other of the adjacent bins 25-27. The number of these panels is equal to the number of partitions 28 and 29 that form the bunkers. FIG. 3 shows schematically an embodiment of the installation, according to which several endless perforated conveyors 37-39 are provided, moving in a direction approximately perpendicular to the trajectory of particles scattered across the drum 3. Collectors 40-42 are located between the upper and lower branches of these conveyors, which collect the flowing water into the common pipe 43. The lower part of the chamber is divided into several bunkers 44-46, connected respectively with the closing flaps 47-49, similar to those of the flap 30 (FIG. 2). These bunkers can also be provided with pivot walls similar to wall 31 (Fig. 2). The installation works as follows. From the furnace (not shown), the slag in the molten or pyroplastic state enters through chute 4 and inclined plane 5 to the crushing drum 3. Slag particles scattered from drum 3 fall along a parabolic trajectory directly onto the perforated conveyor 9. Depending on the peripheral speed of the drum 3 The inclination of the blades of this drum, as well as the masses of particles present, the latter fall closer or far away from the drum. The bundle 8, scattered by the drum 3, consists mainly of water droplets, balls of expanded slag, particles of granulated donkey or slag sand and filamentary particles,
    forming mineral wool. The ratio and quality of these components of the beam 8 is determined by the functioning parameters, in particular the peripheral speed of the drum 3, the amount of water introduced on the pre-expansion ypoBEie in the groove 4 and at the level of the drum 3, the temperature of this water, and other parameters.
    As the solidified particles fall onto the perforated conveyor 9, they are discharged last directly into the body 21 of the transport vehicle. It is desirable that these solid particles fall into the body 21, b11 shi as dry and as cold as possible. Therefore, the speed of the conveyor 9 must be determined on the one hand, depending on the QT of these criteria, a, on the other hand, depending on the nature of the particles present, as well as on the temperature and degree of humidity of the latter at the moment they fall on the conveyor 9. It should note that there is a certain duality between the concepts of humidity and temperature, taking into account that the particles transported by conveyor 9 are dried by the heat brought by the new particles, while the latter are cooled by particles that are already laid out Rowan conveyor 9.
    The filamentous particles forming the mineral wool are trapped by the filter 17. The mineral wool attached to the filter is removed by a scraper 18 and dropped into the tank 19. The use of mineral wool returned to the tank 19 depends on its quality and quantity. If the quantity of mineral wool produced in this way is sufficient, then it can be transferred to a processing device to give it a form that can be sold. In particular, it can be converted into plates by the addition of a hydraulic solution, for the purpose of using as insulating plates. If the quality and quantity of mineral wool returned does not justify such processing or use, then mineral wool can be recycled by introducing it into liquid g, 1 pack at the entrance to chute 4. mineral wool can also be transferred to the mill and because of its good hydrolytic properties, may be added, after grinding, to granular and / or porous varnish.
    Air inlet slots 14 are designed to favor an upward flow inside the casing in order to stimulate the rise of gas products and mineral wool.
    It is also possible to provide between the two-lane branches of the perforated conveyor 9 a fan in order to blow through it into the chamber 1 and thus create a forced upward flow,
    Receiving chamber 1, which benefits from an ecological point of view, in particular, with regard to the propagation of noise and air pollution, makes it possible to use the generated heat to a significant degree. This heat can be used in various ways, for example, in the device 7 for controlling the temperature of the water involved in the slag treatment process. Vozmoh {but also to combine this return of heat with the return of water vapor passing through the condensation stage. This gives an additional gain in the water.
    The construction of the receiving chamber 1 with bunkers, the number of which can be increased or decreased in accordance with the needs of each installation, allows one to expand the possibilities of obtaining the desired qualities and properties of the final product. In the case where relatively large volumes of balls are produced from porous1 slag, for example, it is desirable to lengthen the cooling phase and transform the internal structure of the balls and, therefore, to delay their falling on the perforated conveyor 9. In addition to the possibility of lengthening the cooling phase, pipelines 34 can accelerate cooling phase with injected coolant.
    The second goal of these bins is to sort the particles of the donkey depending on their mass. Under the action of the centrifugal force, it is the most powerful. heavier particles fall into the farthest bunker 27, while the lightest particles are in the bunker 25. These bins are emptied independently and alternately, without interrupting the crushing and spreading operations at the level of the drum 3.
    When installing with several perforated conveyors, it is possible to work continuously, i.e. leave the shutters 47-49 open to the TLLMH and allow the solidified slag particles to fall directly onto the conveyors 37-39. Intermediate storage can be carried out in the outermost bunker 46, which typically contains the largest particles that require more prolonged cooling, and the shutter 47 and / or 48 is left open in order to continuously unload smaller particles.
    权利要求:
    Claims (5)
    [1]
    The advantage of installing an installation with several perforated transporters is that they simultaneously load several categories of particles that differ from each other in their particle size distribution. The duration of cooling of the particles of the donkey scattered by the drum 3 depends mainly on the nature of the particles to be produced. In the case where balls are made from a porous donus a few centimeters in diameter, the cooling should take place gradually and in contact with by air. Therefore, it is important that the trajectory be long enough for this cooling to be possible. In this case, it is necessary to provide interim storage not only for lengthening the cooling phase of the balls of the porous sponge, but also to prevent the destruction of the tape as a result of too high temperature of the balls and slag. If the graded slag is produced, or slag sand consisting mainly of vitrified particles is produced. less than 5 mm in diameter, should be quenched. This rapid cooling is, therefore, carried out by water, and the particle path length is less than the length required for the production of granulated slag. Due to the fact that the excess water is continuously removed through a perforated conveyor, it is possible to increase the amount of water required for the rapid cooling of the slag particles. In the case of the manufacture of granulated slag using this unit, no pre-polisation is performed at the level of the trough, supplying slag to the crushing drum. Before crushing the donkey at the level of the drum, it is desirable to cool the donkey, for example with water, to its lower limit of pyroplasticity. Water consumption is limited, mainly by irrigation of the particle beam scattered by the drum 3, in order to cause rapid cooling and rapid solidification of the slag grains. The use of the proposed plant allows for the production of dry granulated slag using less water than classic granular tanks, which also require water separation from the donkey and the drying of the latter. If the proposed installation is used only for the production of granulated slag, it can be made much more compact and smaller, the installation described above for several products (granulated slag, porous donkey and mineral wool), without losing any advantage. the fact that granulated ilac is rapidly cooled in water, whereas porous uutaK must be cooled more slowly in air, as a result of which the spreading path for granulated slag can be significantly reduced. This reduction in size therefore relates primarily to the receiving chamber 1. Such a compact and cheap installation is very advantageous when it is necessary to produce exclusively granulated slag. 1. An installation for processing metallurgical slag melt, comprising a receiving chamber, a device for dispersing and cooling slag melt located at the entrance to it, a screen mounted in front of it, at least one perforated belt conveyor installed under the chamber and mounted at the top chambers a waste gas cleaning device and a solid particle trapping device, characterized in that, in order to be able to process the melt, TERM or separately into granulated slag, slag pumice and mineral wool, the receiving chamber is ustanovlennEchi above the perforated conveyor belt with flaps hoppers at the bottom of them.
    [2]
    2. Installation according to claim 1, characterized in that it is provided with additional screens mounted above each bunker.
    [3]
    3. Installation according to claim 1, characterized in that the perforated belt conveyor is installed perpendicular to the axis of the device for dispersing and cooling the slag melt.
    [4]
    4. The installation according to claim 1, wherein the perforated belt conveyor is installed parallel to the axis of the device for dispersing and cooling the slag melt. 5. Installation by PP. 1 and 2, in contrast to the fact that a perforated lennel conveyor is installed under each bunker. It is parallel to the axis of the device for dispersing and cooling a strong molten alloy. Priority points: 12.10.76po paragraphs. 14; 09/26/07 by paragraphs 2, 3,
    [5]
    5. Sources of information taken into account in the examination 1. USSR author's certificate. № 525636, cl. C 04 B 5/04, 1974 {(prototype).
    类似技术:
    公开号 | 公开日 | 专利标题
    SU963460A3|1982-09-30|Apparatus for processing metallurgical slag melt
    US2714224A|1955-08-02|Apparatus for granulating chemical substances
    WO2000025944A1|2000-05-11|Multi-chamber type fluidized bed-carrying classifier
    US3133804A|1964-05-19|Apparatus for treating molten ash or slag
    CZ292841B6|2003-12-17|Conveyor/cooler of hot loose solid material and method for conveying and cooling such material
    US4461636A|1984-07-24|Installation for continuous treatment of molten materials to obtain pelletized products
    CN102083517A|2011-06-01|Sulphur granulation apparatus and process
    US3645006A|1972-02-29|Particulate material-drying apparatus and method
    CA1118401A|1982-02-16|Process and apparatus for recovering heat fromfinely to coarsely divided material havinghigh temperature
    JP3037680B1|2000-04-24|Multi-chamber fluidized bed classifier
    US2895231A|1959-07-21|Apparatus for heating finely divided materials
    US2911061A|1959-11-03|Apparatus for cooling hot kiln gases
    CA2043787C|2001-12-04|Enclosure for slag pelletization apparatus and method of operation thereof
    US4255131A|1981-03-10|Apparatus and method for heating an aggregate material
    US2871510A|1959-02-03|Granulator
    US3079701A|1963-03-05|Method and apparatus for cooling clinker
    US3985510A|1976-10-12|Flash reactor unit
    US2673081A|1954-03-23|Heat processing system and furnace
    US2680493A|1954-06-08|Apparatus for removing fume from electric furnace gases
    RU63259U1|2007-05-27|TECHNOLOGICAL COMPLEX FOR CLEANING AND DYNAMIC AIR-DRY ENRICHMENT OF GRAIN BULK MATERIAL
    US3825190A|1974-07-23|Apparatus for treating granular material
    US2930140A|1960-03-29|Material drier and method
    US4255130A|1981-03-10|Apparatus and method for treating an aggregate material with a flowing gas
    SU565689A1|1977-07-25|Apparatus for purifying high-temperature gases
    SU1719077A1|1992-03-15|Apparatus for crushing and drying materials
    同族专利:
    公开号 | 公开日
    MX147399A|1982-11-30|
    IT1113630B|1986-01-20|
    PL201474A1|1978-05-08|
    FR2367827B1|1983-04-29|
    JPS5355494A|1978-05-19|
    GB1588364A|1981-04-23|
    US4277273A|1981-07-07|
    ATA726977A|1981-02-15|
    PL116574B1|1981-06-30|
    FR2367827A1|1978-05-12|
    BE859609A|1978-04-11|
    SE429437B|1983-09-05|
    DE2745935A1|1978-04-13|
    BR7706838A|1978-07-11|
    CA1099515A|1981-04-21|
    NL7711167A|1978-04-14|
    AT363967B|1981-09-10|
    SE7711019L|1978-04-13|
    ES463093A1|1980-12-16|
    AU2951877A|1979-04-26|
    CS218570B2|1983-02-25|
    AU510728B2|1980-07-10|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE311639C|1900-01-01|
    US1008204A|1909-02-09|1911-11-07|Pyrotrass Sa Pour La Fabrication Du Trass Artificial Brevete Et Ses Applic Ind|Granulating slag.|
    US1389397A|1920-01-23|1921-08-30|Louis A Tactikos|Heater|
    DE397199C|1922-10-22|1924-06-16|Karl Brandler|Device for separating material to be cut, in particular furnace residues|
    US2210999A|1937-12-20|1940-08-13|Bartholomew Tracy|Production of dry granulated slag|
    US2255206A|1938-07-13|1941-09-09|United States Gypsum Co|Apparatus for providing uniformly graded fibrous materials|
    US2265802A|1940-02-07|1941-12-09|Cox Merrill|Bin structure|
    GB572111A|1943-11-26|1945-09-24|Erik Bertil Bjorkman|Apparatus for the disposal of industrial slags|
    US2450978A|1944-07-03|1948-10-12|Leona Templeton Caldwell|Method and apparatus for production of expanded slag|
    FR1077850A|1953-05-27|1954-11-12|Kinney Eng Inc S P|Process and apparatus for the production of light slag|
    US3099494A|1961-06-06|1963-07-30|Fmc Corp|Feed device with fluid activated rippling sheets|
    US3310391A|1962-08-31|1967-03-21|Flex O Lite Mfg Corp|Method of and apparatus for production of glass beads by use of a rotating wheel|
    FR1359132A|1962-12-13|1964-04-24|Internat Steel Slag Corp|Installation for slag evacuation|
    US3379345A|1965-12-21|1968-04-23|Werner & Pfleiderer|Storage vessel or feed unit for powdered materials with air-permeable guiding or separating walls|
    US3523015A|1967-04-21|1970-08-04|Intern Steel Slag Corp|Molten steel slag handling process and apparatus|
    FR1577442A|1968-05-15|1969-08-08|
    US3594142A|1968-06-05|1971-07-20|Nat Slag Ltd|Processes for the pelletization of metallurgical slag|
    US3738820A|1970-06-01|1973-06-12|Kinney S Eng Inc|Method of and apparatus for the processing of molten slag|
    DE2157653C3|1971-11-20|1974-05-22|Knapsack Ag, 5033 Huerth-Knapsack|Process for granulating a molten mixture of phosphorus furnace slag and ferrophosphorus|
    US3853514A|1973-07-30|1974-12-10|Universal Oil Prod Co|Movable demister system|LU77160A1|1977-04-19|1979-01-18|
    US4350326A|1981-02-02|1982-09-21|Kawasaki Jukogyo Kabushiki Kaisha|Apparatus for heat recovery from molten slag|
    US4435342A|1981-11-04|1984-03-06|Wentzell Jospeh M|Methods for producing very fine particle size metal powders|
    US4414016A|1982-05-13|1983-11-08|National Slag Limited|Apparatus for the pelletization of heat-liquifiable solid materials|
    US4995894A|1989-05-01|1991-02-26|National Slag Limited|Enclosures for slag pelletization apparatus and method of operation|
    LU87657A1|1990-01-15|1991-10-08|Wurth Paul Sa|DEVICE FOR DRAINING SLAG SAND|
    US5082483A|1990-06-08|1992-01-21|National Slag Limited|Enclosures for slag pelletization apparatus and method of operation thereof|
    US5259510A|1992-03-31|1993-11-09|Edward Lowe Industries, Inc.|Apparatus for separating and removing fine particulates from a particle flow|
    US6190235B1|1998-09-11|2001-02-20|Julius S. Csabai|Method and apparatus for reclaiming used abrasives|
    LU90346B1|1999-02-08|2000-08-09|Wurth Paul Sa|Plant for aqueous granulation|
    US7237679B1|2001-09-04|2007-07-03|Aveka, Inc.|Process for sizing particles and producing particles separated into size distributions|
    WO2008062710A1|2006-11-20|2008-05-29|Hitachi Metals, Ltd.|Single ball separating device and single ball separating method|
    US7884055B2|2008-12-04|2011-02-08|Intevep, S.A.|Ceramic microspheres for cementing applications|
    CN101485966B|2009-01-12|2012-09-12|王泽元|Roller die squeezing type granulator|
    LU92197B1|2013-05-14|2014-11-17|Wurth Paul Sa|Casting apparatus and method of controlling said apparatus.|
    CN105567891B|2015-12-28|2017-10-10|蒋福军|A kind of high-temperature liquid state slag heat energy extracting method|
    CN109304811A|2018-10-24|2019-02-05|刘良国|A kind of automobile-used water-reducing agent storage device of concrete tank|
    CN109482302A|2018-11-19|2019-03-19|吉林建龙钢铁有限责任公司|A kind of desulfurization slag iron crushing device|
    WO2021156789A1|2020-02-07|2021-08-12|Tenova S.P.A.|Process and apparatus for the granulation of slag deriving from iron and steel production|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    LU75978A|LU75978A1|1976-08-06|1976-10-12|
    LU78184A|LU78184A1|1977-09-26|1977-09-26|
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