• 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:
    The invention relates to a process for the recovery of converter gas. In the process of steel production, the resulting converter gas will become de-dusting in filter systems and will be stored in storage devices following the dedusting process. The method is characterized in that the converter gas is cooled after dedusting in filter systems and before the subsequent storage on the dedusting in storage devices by means of a dry cooling method. Under a dry cooling process is a process to understand in which during the cooling of a gas stream little or no wastewater, which has come into direct contact with the cooled gas stream during cooling, is obtained. Low-level wastewater is to be understood as meaning that less than 20% of a quantity of water introduced for cooling into a flow of converter gas is produced as wastewater. The invention also relates to a device for carrying out the method.
    公开号:AT510419A4
    申请号:T576/2011
    申请日:2011-04-22
    公开日:2012-04-15
    发明作者:Alexander Dr Fleischanderl；Yuyou Dr Zhai
    申请人:Siemens Vai Metals Tech Gmbh；
    IPC主号:
    专利说明:

    201108775
    Description Name of the invention
    Process and apparatus for recovering converter gas. Field of technology
    The present application relates to a method for recovering converter gas, wherein converter gas produced in steelmaking is cooled after dedusting in filter systems and before storage in storage devices following dedusting. It also relates to a device for carrying out the method.
    State of the art
    When raw iron is oxygenated, the accompanying elements of the pig iron are oxidized by the oxygen and separated from the iron. While the oxides of Si, Mn and P are removed from the steel bath in the form of slag, carbon escapes in gaseous form as carbon monoxide CO from the steel bath. The resulting from the fresh carbon monoxide fraction in the so-called converter gas, which escapes from the converter containing the steel bath, gives the converter gas a large amount of energy. By chemical conversion into carbon dioxide C02 this energy content can be obtained later, for example by combustion of the CO or by reduction of metal oxides by means of CO. For this purpose it is known to collect the converter gas and store. These process steps are also called recovery of the converter gas. For this purpose, the converter gas is subjected to dedusting - for example, electrostatically - and cooling. The converter gas exiting into the cooling chimney at the converter mouth has temperatures> 1500 ° C., and in a first step is cooled indirectly to about 900-1050 ° C. by means of the cooling chimney. In a second step, it is known from the prior art, by means of water injection in an evaporative cooling with water injection to temperatures between about 350 ° C and 130 ° C, usually between 300eC and 160eC to cool. The subsequent - mostly electrostatic - dedusting in the subsequent cooling steps, which are subsequent to the dedusting, enters the converter gas correspondingly at about 350 to 130 ° C. In this case, in the cooling steps subsequent to the dedusting for cooling the converter gas, generally wet gas coolers are used, which additionally reduce the dust content of the converter gas. Typically, the inlet temperature of the dedusted and dedusting cooled converter gas when entering a storage device is about 70 ° C. By cooling the converter gas, a larger volume of converter gas can be stored in a given volume of a storage device than in uncooled introduction of the converter gas into the storage device. The usually used wet-working gas coolers acting as gas scrubbers for the dedusted converter gas have the disadvantage that large amounts of water must be used. Accordingly, high operating costs are incurred since water losses have to be compensated and accumulated wastewater has to be extensively aftertreated. A further contribution to high operating costs is made by the high power requirement of the pump system required for the circulation of the water as well as the high space and investment requirements resulting from the parts of the system required for the water supply and after-treatment. In addition, in wet-working, acting as gas scrubbers gas cooler and the gas cooler itself has a significant space and investment needs.
    In addition, the use of dry dedusting systems over wet dedusting systems achieves partial reductions in water management benefits through the use of wet gas scrubbers as gas scrubbers.
    Summary of the Invention 30 Technical Problem
    It is the object of the present invention to provide a method and an apparatus which avoids the disadvantages of the prior art. • «*« · # # · *** * # ♦ «f kl« I * * * * · »··« · * · · «« < ft · ft · ft · ft · ft · 1 · ft * 201108775 3
    Technical solution
    This object is achieved by a method for recovering converter gas, which is cooled in the steel production converter gas after dedusting in filter systems and before following the dedusting storage in storage devices, which is characterized in that the converter gas after dedusting in filter systems and before being stored in storage devices after the dedusting is cooled by a dry cooling method.
    Collecting and storing converter gas are also called recovery of the converter gas.
    The converter gas accumulates when refining pig iron batches for steel production in a converter. The converter may be, for example, an AOD converter for producing stainless steel, or an LD converter for performing a BOF method with inflation of oxygen, or a bottom-blowing converter, or a combined bottom and up-blowing converter. AOD stands for Argon Oxygen Decarburization. LD stands for the Linz-Donawitz process. BOF stands for Basic Oxygen Fumace.
    A dry cooling process is to be understood as meaning a process in which during the cooling of a gas stream little or no wastewater, which has come into direct contact with the gas stream to be cooled during cooling, is obtained. Low wastewater is to be understood as meaning that less than 20%, preferably less than 10%, of a quantity of water introduced for cooling into a flow of converter gas is produced as waste water.
    Advantageous Effects of the Invention
    According to an advantageous embodiment of the invention, the dry cooling process is a process for indirect heat exchange. In indirect heat exchange, a gaseous or liquid cooling medium is kept spatially separated from the converter gas. Mixing of the cooling medium with the converter gas therefore can not take place. According to t · 201108775 the cooling medium is not contaminated by contact with converter gas and must not be appropriately cleaned or disposed of accordingly. The moisture of the converter gas is not increased as a result of supply of moisture by contact between the cooling medium and the converter gas.
    According to a preferred embodiment, the method for indirect heat exchange is a method for indirect gas-gas heat exchange. For example, the converter gas can be cooled by means of gas-gas heat exchange when cooling gas, for example ambient air, is guided by means of blowers via converter gas-carrying lines. The lines carrying the converter gas are preferably designed in the region in which cooling air is passed over them so that they have the largest possible surface-to-volume ratio. In this way, it is possible to cool particularly efficiently. The material of the conduits is preferably a metallic material at least in the region in which cooling air is passed over it. Steel is particularly preferred, since steel is easy to process, cost-effective and sufficiently heat-conductive for the purpose. For example, the converter gas lines leading in the area in which converter gas is passed over it, designed as a plate-shaped hollow body, introduced into the converter gas and can be discharged from which converter gas.
    The lines leading the converter gas can also be formed as tubes in the region in which converter gas is passed over them, can be introduced into the converter gas and from which converter gas can be discharged. The cooling by gas-gas heat exchange can also be done without a fan. In this case, ambient air cooled by the lines leading between the converter gas is cooled.
    In principle, it is also possible, depending on the measured temperature of the cooled dedusted converter gas and selected thresholds for the temperature of the cooled dedusted converter gas on or off, so that cooling either through the dedusted converter gas lines leading blown cooling air, or cooling by « "^ * * · · * * *« · · · · «♦ * 201108775 5 r« μ ·· the ambient air between the converter gases is present.
    In another embodiment, the indirect heat exchange process is a closed-loop indirect gas-liquid heat exchange process. For example, a liquid cooling medium in pipelines can be guided in a closed circuit, and the converter gas can flow around the pipelines. The liquid cooling medium may be, for example, water, or ammonia, or a mixture of ammonia and water. A mixing of the liquid cooling medium with the converter gas can not take place. Accordingly, the liquid cooling medium is not contaminated by contact with converter gas and accordingly does not have to be laboriously cleaned or disposed of. A preparation of the liquid cooling medium, for example, a water treatment, is accordingly not necessary in such process management.
    In the closed cooling circuit also re-cooling of heated liquid cooling medium takes place.
    In another embodiment, the dry cooling process is an evaporative cooling process. In this case, a liquid cooling medium, for example water, injected into the gas stream of the converter gas. The droplet diameter d90 - d90 indicates that 90% of the droplets have a droplet diameter corresponding to a following size specification - the dosed liquid cooling medium is d90 < 1000 microns, preferably < 300 microns. To produce such fine droplets, for example, 2-fluid nozzles are used, which are operated, for example, with nitrogen, or high-pressure nozzles, for example, return nozzles used.
    Conventionally used gas scrubbers acting as gas scrubbers have a droplet spectrum in which the droplet diameter d90 is substantially larger than 1000 microns and operate at high L / G of about 2-5. L / G stands for the ratio of liters of cooling medium to cubic meters of gas to be cooled. In such an operation, a portion of the cooling medium is evaporated - it t * p »· I» * * * »kl III * * *« * f i 4 · I * * · | Thus, while the greater part does not evaporate, but only heats up, vaporization and evaporation in this context are different terms for the same Since heating does not use the heat of evaporation to cool the gas stream from the converter gas, for a given cooling it will require the addition of more cooling medium than if all or most of the cooling medium is being evaporated Gas scrubbers working gas coolers large circulation water volumes required.
    In the method according to the invention is characterized in that the liquid cooling medium is introduced as a mist of fine drops, the - resulting in cooling the converter gas - evaporation of the cooling medium compared to conventional wet-working, acting as gas scrubbers gas coolers facilitated. This makes it possible to achieve a given cooling without an enormous excess of water with L / G of 2-5, which is necessary in conventional processes, but with a L / G substantially less than 1, preferably less than 0.5, particularly preferably less than 0.1, for example Range 0.05, reach. Since in the process according to the invention the injected liquid cooling medium, water, practically completely evaporates, no or little wastewater, which has come into direct contact with the gas stream to be cooled during cooling, falls in accordance with the invention in an evaporative cooling process.
    Low wastewater is to be understood as meaning that less than 20%, preferably less than 10%, of a quantity of water introduced for cooling into a flow of converter gas is produced as waste water.
    In this context, the term wastewater is also to be understood as meaning liquid cooling medium which has come into direct contact with the gas stream to be cooled during cooling, and therefore has to be treated.
    In another embodiment, the dry cooling process is a combination of dry cooling and evaporative cooling processes. «♦ · * ··· · * * · • 1 * · f * ·» »* ·· 4 · · * 9» * · · * Φ * ♦ I »4» »» ·· * · · * 201108775 7
    The converter gas is passed through devices for performing a dry cooling process. According to a preferred embodiment of the method according to the invention, the devices for carrying out a dry cooling process are cooled both during the passage of converter gas by means of their cooling medium, and cooled in periods during which there is no passage of converter gas and the temperature in the apparatuses for performing a dry cooling process over a selected threshold.
    The plant parts of the device for carrying out a dry cooling process may be heated by the hot converter gas passed through. The efficiency of the cooling increases with increasing temperature difference between the generator gas to be cooled and the plant parts, along which the generator gas flows along. Therefore, it is desirable that these parts of the system have the lowest possible temperature level when converter gas enters the device for carrying out a dry cooling process.
    Converter gas generally does not accumulate continuously in a steel mill. Accordingly, there are periods in which, for lack of converter gas, the devices for carrying out a dry cooling process are not flowed through by hot converter gas.
    It may also be the case that although converter gas accumulates, but this has a CO content that is so low that no storage is desired. In such a case, this converter gas is not supplied to the dry cooling process and stored, but burned by a torch. Even then, the device for carrying out a dry cooling process is not flowed through by converter gas.
    If in these periods of cooling medium so long contributes to the cooling of heated system parts until a selected threshold is exceeded, is at later entry of hot converter gas a large temperature difference and thus conditions for the most efficient cooling before. The threshold value can be selected, for example, such that the cooling ceases when the expense associated with further cooling is greater than the benefit that can be achieved by a further increased temperature difference. * * «» • «*% * ft t 4 * · I 4 * · 8 201108775
    Another object of the invention is a device for carrying out a method according to the invention, with a suction line for converter gas, which opens into a device for cooling the converter gas, with a dedusting device for dedusting cooled converter gas, with a device for cooling the converter gas and the dedusting device for dedusting of cooled converter gas connecting dedusting, as well as with a gas storage device for storing cooled and dedusted converter gas into which emanates from the dedusting device for dedusting cooled converter gas storage line, characterized in that in the flow direction of the converter gas to the dedusting and before the gas storage device in the storage line there is an apparatus for performing a dry cooling process.
    According to one embodiment of the device according to the invention, the dry cooling process is a process for indirect heat exchange.
    According to one embodiment of the device according to the invention, the method for indirect heat exchange is a method for indirect gas * gas heat exchange.
    According to one embodiment of the device according to the invention, the method for indirect heat exchange is a method for indirect gas-liquid heat exchange with closed cooling circuit. In the closed cooling circuit also re-cooling of heated liquid cooling medium takes place.
    201108775 9
    According to one embodiment of the device according to the invention, the dry cooling process is a combination of an indirect heat exchange process and an evaporative cooling process.
    According to one embodiment of the device according to the invention, the dry cooling process is an evaporative cooling process.
    According to one embodiment of the device according to the invention, in the apparatus for carrying out an evaporative cooling process, nozzles for injecting a liquid cooling medium with droplet diameter d90 of the injected liquid cooling medium d90 < 1000 micrometers available.
    Description of embodiments
    The invention will be explained with reference to exemplary schematic figures of embodiments.
    Figure 1 shows schematically the path of the converter gas from the converter into the gas storage device.
    Figure 2 shows an embodiment of an apparatus for carrying out a dry cooling process with indirect gas-liquid heat exchange with shell and tube heat exchangers, which are traversed by cooling water.
    FIG. 3 shows a further schematic view of an embodiment of the device according to the invention with tube bundle heat exchangers as a device for carrying out a dry cooling method.
    Figure 4 shows a further schematic view of an embodiment of the device according to the invention with an apparatus for performing a dry cooling process with indirect gas-gas heat exchange.
    Figure 5 shows schematically a plate-shaped hollow body, which is used for indirect gas-gas heat exchange.
    FIG. 6 shows schematically the execution of a dry cooling process with evaporative cooling. «Tl« l 10 201108775
    In FIG. 1, oxygen, represented by straight arrows, is blown onto a molten steel 2 in an LD converter 1 by means of a blowing lance 3. By means of a suction hood 4, the converter gas 5 exiting converter gas, represented by wavy arrows, passed into a suction line 6. In the suction hood 4 and the suction line 6, a first cooling step for the converter gas takes place by means of indirect cooling by water / steam. In the evaporative cooler 7, the converter gas, which enters at about 900 - 1050 ° C, cooled to about 350 - 130 ° C. Via a dedusting 8, the cooled in the evaporative cooler 7 converter gas in a dedusting device for dedusting cooled converter gas, here an ESP electrostatic filter 9, passed. ESP stands for electrostatic precipitator. From the ESP electrostatic filter 9 is a storage line 10, which opens into a gas storage device for storing cooled and dedusted converter gas, here a gasometer 11. In the flow direction of the converter gas downstream of the ESP electrostatic filter 9 and upstream of the gasometer 11, an apparatus for carrying out a dry cooling process 12 is present in the storage line 10. In the storage line 10 is seated a switching device 13, with which the gas flow of the converter gas can be led to a torch chimney instead of in the apparatus for performing a dry cooling process. During periods in which the converter gas has a lower CO concentration than is desired for storage, the converter gas is passed through a flare stack 14 and flared there. Such time segments are, for example, the beginning of the bubble or the end of the bubble, or tapping periods. When the CO concentration rises above a threshold value, the converter gas is in turn supplied to the gasometer 11 by switching over the switching device.
    FIG. 2 shows an embodiment of the device for carrying out a dry cooling method. In the embodiment shown, indirect gas-liquid heat exchange takes place. Dedusted converter gas flows from the storage line 10 into the device for carrying out a dry cooling process 12, where it is cooled, flows after cooling
    Is again introduced via the storage line 10 into a gas storage device (not shown) for storing cooled and dedusted converter gas. A shell-and-tube heat exchanger 15 is traversed by cooling water represented by dotted arrows. Between the individual tubes - there are five individual tubes shown - the tube bundle heat exchanger 15 flows the dedusted converter gas. Cooling water and converter gas flow in opposite directions, so it is a countercurrent cooling. In principle, in a dry cooling process with gas-liquid heat exchange, it could also be designed as DC cooling or as countercurrent cooling. The cooling water is conducted in a closed circuit with recooling, which is not shown in Figure 2 for clarity. Supplied to the individual tubes and discharged from the individual tubes of the shell and tube heat exchanger 15, the cooling water is via a distributor section 16 and a header section 17 of the tube bundle heat exchanger 15. The tube bundle heat exchanger 15 also has a cooling water supply line 18 and a Cooling water discharge line 19 on.
    FIG. 3 shows a further schematic view of an embodiment of the device according to the invention with tube bundle heat exchangers 20, in this case for indirect gas-gas heat exchange, as a device for carrying out a dry cooling method. A number of modules 21, 22, 23, 24 of tube bundle heat exchanger 20 can be seen. A schematic tube bundle heat exchanger 20 is shown in broken lines in module 22; corresponding borders in the other modules 21, 23, 24 have been omitted for reasons of clarity , In principle, there is the option to connect further modules, which is indicated by dashed outlines of such modules. The illustration of a memory line 10 has been omitted for reasons of clarity.
    The converter gas is represented by straight arrows. It is shown how dedusted converter gas is supplied to the modules, introduced into the tubes of the tube bundle heat exchangers, passed through the modules in this, and is derived from the modules cooled and dedusted converter gas. The cooling takes place in that by means of blowers 25 cooling air, · «*» · »* · 1 ··« »·« * * • · # · · - · · * * * * * * «*« «* *« · # + * * * * · * * * * 201108775 12 represented by dotted arrows into which modules are blown. The cooling air flows around the tubes of the tube bundle heat exchanger 20 leading the dedusted converter gas and cools. Shown is for clarity only for module 22, as dedusted converter gas flows through the pipe 26 indicated by dashed lines of the tube bundle heat exchanger 20 and is cooled by flowing around the pipe 26 cooling air. In principle, it is also possible to work without a fan, so that the dedusted converter gas in the tubes is cooled by the ambient air. On a representation of the derivative of the cooling air from the modules has been omitted for the sake of clarity.
    FIG. 4 shows a further schematic view of an embodiment of the device according to the invention with a device for carrying out a dry cooling process with indirect gas-gas heat exchange. For the indirect gas-gas heat exchange serve plate-shaped hollow body 27. The plate-shaped hollow body 17 are described in more detail in Figure 5. In the modules 28,29,30,31 each have a plurality of plate-shaped hollow body 27 are available; however, only three plate-shaped hollow bodies 27 in module 29 and a plate-shaped hollow body 27 with dashed outlines in module 28 are shown for clarity. In FIG. 4, for the sake of clarity, the illustration of details of the plate-shaped hollow body 27 shown in FIG are explained in detail, omitted. Cooling gas, in this case cooling air, is blown over the plate-shaped hollow bodies 27 via fans 32a, 32b. The cooling air is represented by arrows with circles as shank. On a representation of the derivative of the cooling air from the modules has been omitted for the sake of clarity. Analogous to the representation in FIG. 3, the converter gas in FIG. 4 is represented by straight arrows. It is shown how dedusted converter gas is supplied to the modules, introduced into the plate-shaped hollow body 27, passed through the modules in the plate-like hollow bodies 27, and is cooled by the modules. The dedusted converter gas is cooled by the contact of cooling air with the plate-shaped hollow bodies 27. The cooling air flows through the plate-shaped hollow body 27 in cross-flow to the dedusted converter gas, in the example shown, the dedusted converter gas flows vertically through the plate-shaped hollow body 27, and the cooling air Μ * · · «* ·· ** ··· * * ··· · * · * · + "··· · · ·" ι ·· "" * ¥ · · · · · · f * ι »• 4 ·· I |.» »| Horizontally across the plate-shaped hollow bodies 27. The cooling air is blown via blowers 32a, 32b via the plate-shaped hollow body 27. In principle, it is also possible to work without a fan, so that the dedusted converter gas in the plate-shaped hollow bodies 27 is cooled by the ambient air.
    FIG. 5 schematically shows a plate-shaped hollow body 27. In the cavity enclosed by the walls of the plate-shaped hollow body, converter gas, represented by corrugated arrows, is introduced via a converter gas feed line 33 and discharged via a converter gas discharge line 34. By means not shown blower is shown by arrows with circles as shaft cooling air blown over the plate-shaped hollow body 27. In the modules 28, 29, 30, 31 of Figure 4 each have a plurality of plate-shaped hollow body 27 are present.
    Figure 6 shows schematically an embodiment in which the dry cooling process is an evaporative cooling process. In a gas cooler 35 dedusted converter gas, represented by wavy arrows, initiated. In the flow direction of the dedusted converter gas, a cooling medium, in this case water, is injected by means of return nozzles 36. With these nozzles, a fine mist of the cooling water with droplet diameter d90 < 1000 microns produced. By evaporation of the fine mist, the dedusted converter gas is cooled and then discharged from the gas cooler 35. A complete evaporation of the cooling water is sought and realized by controlling the amount of injected water. If a subset of the injected cooling water, which has come into contact with the converter gas, does not evaporate, but collects in the lower part of the gas cooler, this wastewater can be disposed of via the sewer line 37. The process is operated in such a way that no wastewater or only a small amount of wastewater is produced. Low wastewater is understood to mean that less than 20%, preferably less than 10%, of the amount of cooling water injected arise as wastewater.
    Although the invention has been further illustrated and described in detail by the preferred embodiment 14 201108775, the invention is not limited by the disclosed examples, and other variations can be derived therefrom by those skilled in the art without departing from the scope of the invention. »*» * * * »*» * * * 15 201108775
    LIST OF REFERENCES 1 LD converter 2 molten steel 3 blowing lance 4 suction hood 5 converter mouth 6 suction line 7 evaporating cooler 8 dedusting line θ ESP electrostatic filter 10 storage line 11 gasometer 12 Apparatus for carrying out a dry cooling process 13 switching device 14 flare stack 15 tube bundle heat exchanger 16 distributor section 17 collector section 18 Cooling water supply line 19 Cooling water discharge line 20 Tube bundle heat exchanger 21 Module 22 Module 23 Module 24 Module 25 Blower 26 Tube 27 Plate-shaped hollow body 28 Module 29 Module 30 Module * * Mt * * * * * Mt * * * 16 201108775 31 Module 32a, 32b Blower 33 Converter gas supply 34 Converter gas discharge 35 Gas cooler 36 Return nozzle 37 Sewer pipe
    权利要求:
    Claims (14)
    [1]
    • * * * ···· «♦ · t I *« «II * · * II» »· · · · · · * * * * * * * * * * * i * * * * * 201108775 17 Anspruch 1. A method for recovering converter gas, wherein in the steel production resulting converter gas is cooled after dedusting in filter systems and before following the dedusting storage in storage devices, which is characterized in that the converter gas after dedusting in filter systems and before on the dedusting following storage in storage devices is cooled by means of a dry cooling process.
    [2]
    2. The method according to claim 1, characterized in that the dry cooling method is a method for indirect heat exchange.
    [3]
    3. The method according to claim 2, characterized in that it is the method for indirect heat exchange is a method for indirect gas-gas heat exchange.
    [4]
    4. The method according to claim 2, characterized in that it is the method for indirect heat exchange is a method for indirect gas-liquid heat exchange with closed cooling circuit.
    [5]
    5. The method according to claim 1, characterized in that the dry cooling method is a combination of dry cooling method and evaporative cooling method.
    [6]
    6. The method according to claim 1, characterized in that the dry cooling process is an evaporative cooling process.
    [7]
    7. The method according to any one of claims 1 to 5, characterized in that the converter gas is passed through apparatuses for performing a dry cooling process, wherein the devices for performing a dry cooling process both during the passage of converter gas by means of its cooling medium t * * · · · · · * · «Ι4 · ··· *« * · · * * ·· »·» * * »« '»» »•» »* * * * * · I ·« · < I »» * · · < 201108775 and cooled in periods during which there is no passage of converter gas and the temperature in the devices for performing a dry cooling process is above a selected threshold.
    [8]
    8. Apparatus for carrying out a method according to one of claims 1 to 7, comprising a suction line for converter gas, which opens into a device for cooling the converter gas, with a dust removal device for dedusting cooled converter gas, with a device for cooling the converter gas and the Dedusting device for dedusting of cooled converter gas connecting dedusting, as well as with a gas storage device for storing cooled and dedusted converter gas, in which an emanating from the dedusting device for dedusting of cooled converter gas Speicherieitung opens, characterized in that in the flow direction of the converter gas after the dedusting and before Gas storage device in the storage line, an apparatus for performing a dry cooling method is present.
    [9]
    9. Apparatus according to claim 8, characterized in that the dry cooling method is a method for indirect heat exchange.
    [10]
    10. The device according to claim 9, characterized in that the method for indirect heat exchange is a method for indirect gas-gas heat exchange.
    [11]
    11. The device according to claim 9, characterized in that the method for indirect heat exchange is a method for indirect gas-liquid heat exchange with closed cooling circuit. · * ≫ «·« • · «Φ • *« «*« ♦ · φ 201108775 ** * 19
    [12]
    A device according to any one of claims 8, characterized in that the dry cooling process is a combination of a process for indirect heat exchange and an evaporative cooling process.
    [13]
    13. The device according to claim 8, characterized in that the dry cooling process is an evaporative cooling process.
    [14]
    14. The apparatus of claim 12 or 13, characterized in that in the apparatus for carrying out an evaporative cooling process nozzles 10 for injection of a liquid cooling medium with droplet diameter d90 of the injected liquid cooling medium d90 < 1000 micrometers are present.
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    同族专利:
    公开号 | 公开日
    UA89952U|2014-05-12|
    AT510419B1|2012-04-15|
    UA90655U|2014-06-10|
    WO2012143487A1|2012-10-26|
    RU144630U1|2014-08-27|
    CN203890307U|2014-10-22|
    SK7174Y1|2015-07-01|
    SK50402013U1|2015-02-03|
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    法律状态:
    2016-06-15| PC| Change of the owner|Owner name: PRIMETALS TECHNOLOGIES AUSTRIA GMBH, AT Effective date: 20160415 |
    2017-12-15| MM01| Lapse because of not paying annual fees|Effective date: 20170422 |
    优先权:
    申请号 | 申请日 | 专利标题
    ATA576/2011A|AT510419B1|2011-04-22|2011-04-22|METHOD AND DEVICE FOR RECOVERING CONVERTER GAS|ATA576/2011A| AT510419B1|2011-04-22|2011-04-22|METHOD AND DEVICE FOR RECOVERING CONVERTER GAS|
    RU2013151909/05U| RU144630U1|2011-04-22|2012-04-20|CONVERTER GAS REGENERATION DEVICE|
    PCT/EP2012/057232| WO2012143487A1|2011-04-22|2012-04-20|Process and apparatus for recovering converter gas|
    UAU201313548U| UA90655U|2011-04-22|2012-04-20|Regenerating device for converter gas|
    CN201290000457.7U| CN203890307U|2011-04-22|2012-04-20|Device for recovering converter gas|
    UAU201312364U| UA89952U|2011-04-22|2012-04-20|Process for recovering converter gas|
    SK5040-2013U| SK7174Y1|2011-04-22|2012-04-20|Process for recovering converter gas and apparatus for carrying out this process|
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