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WO2013011089A1 - Procédé et dispositif pour le dépoussiérage et le refroidissement de gaz de convertisseur - Google Patents

Procédé et dispositif pour le dépoussiérage et le refroidissement de gaz de convertisseur Download PDF

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Publication number
WO2013011089A1
WO2013011089A1 PCT/EP2012/064180 EP2012064180W WO2013011089A1 WO 2013011089 A1 WO2013011089 A1 WO 2013011089A1 EP 2012064180 W EP2012064180 W EP 2012064180W WO 2013011089 A1 WO2013011089 A1 WO 2013011089A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooling
gas
cooling device
heat exchange
converter gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2012/064180
Other languages
German (de)
English (en)
Inventor
Alexander Fleischanderl
Robert Neuhold
Tobias Plattner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SIEMENS VAI METALS TECHNOLOGIES GmbH
Primetals Technologies Austria GmbH
Original Assignee
SIEMENS VAI METALS TECHNOLOGIES GmbH
Siemens VAI Metals Technologies GmbH Austria
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SIEMENS VAI METALS TECHNOLOGIES GmbH, Siemens VAI Metals Technologies GmbH Austria filed Critical SIEMENS VAI METALS TECHNOLOGIES GmbH
Publication of WO2013011089A1 publication Critical patent/WO2013011089A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/02—Dust removal
    • C10K1/024—Dust removal by filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/04—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/38—Removal of waste gases or dust
    • C21C5/40—Offtakes or separating apparatus for converter waste gases or dust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/20—Arrangements for treatment or cleaning of waste gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C2100/00—Exhaust gas
    • C21C2100/02—Treatment of the exhaust gas
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the present application relates to a method for dedusting and cooling of converter gas and to an apparatus for carrying out the method.
  • the converter gas is subjected to dedusting - for example, electrostatically - and cooling.
  • dedusting for example, electrostatically - and cooling.
  • Storage device 50-70 ° C. By cooling the converter gas can be stored in a given volume of a storage device, a larger amount of substance converter gas than in uncooled introduction of the
  • Electrostatic precipitators to be dedusted The resulting cooled and dedusted converter gas is often introduced into a gas storage device after further cooling in a gas cooler, usually a quench, with a dust content of usually 10 - 20 mg / Nm 3 is realized after electrostatic precipitator. Even when using a gas cooler, especially one
  • This object is achieved by a method for dedusting and cooling converter gas
  • converter gas obtained in the steelmaking is first subjected to indirect cooling in a first cooling device by heat exchange between the converter gas and a liquid cooling medium, preferably under steam and / or hot water production,
  • the converter gas leaves the first cooling device at which it has undergone indirect cooling by heat exchange between the converter gas and a liquid cooling medium, preferably under steam and / or hot water production, at a temperature
  • ⁇ 1 is 100 ° C, preferably ⁇ 950 ° C, more preferably ⁇ 750 ° C, and which is> 350 ° C, preferably> 400 ° C, more preferably> 450 ° C, most preferably> 500 ° C, and that the first cooling device leaving converter gas is introduced into the second cooling device, and in the second Cooling device dry or quasi-dry cooling, preferably to a temperature ⁇ 280 ° C, more preferably to a temperature ⁇ 250 ° C, most preferably to a temperature ⁇ 200 ° C takes place,
  • 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 an LD method with inflation of oxygen, or a bottom-blowing converter, or a combined bottom and on-up converter.
  • AOD stands for Argon Oxygen Decarburization.
  • the indirect cooling takes place with energy transfer from the converter gas to a liquid cooling medium in a first cooling device.
  • the liquid cooling medium is preferably water.
  • the indirect cooling is carried out with the liquid cooling medium under steam or hot water production.
  • the first cooling device can be designed at least partly as a cooling chimney.
  • cooling chimney is understood to mean a gas channel consisting of tube segments, on the inner surface of which a heat exchange takes place between the converter gas and a cooling medium guided in tubes.
  • Gas channels additional exchange surfaces, such as so-called
  • Cooling medium - preferably water - leading tubes is pumped. In the removal of the heat energy of the converter gas steam is formed, which is collected in a steam drum and for further use in the
  • steam generation is to use the energy available in the hot converter gas - which leaves the converter at temperatures of up to 2000 ° C - for other uses
  • the energy transfer in the indirect cooling in the first cooling device can of course be carried out instead of water or steam with other media, such as molten salts or organic liquids.
  • the converter gas is subjected to further cooling in a second cooling device, and then dedusted in a dedusting device by means of filtering to a dust content of ⁇ 5 mg / Nm 3 .
  • the converter gas leaving the first cooling device is introduced into the second cooling device without coarse dedusting taking place between leaving the first cooling device and entering the second cooling device
  • dry or quasi-dry cooling takes place in the second cooling device.
  • dry cooling means cooling in which the moisture content of the converter gas to be dedusted is not increased by supplying moisture into the converter gas. This is the case for example with indirect cooling by means of a heat exchanger, for example gas-liquid with a cooling liquid or gas-gas with a cooling gas.
  • Low wastewater is to be understood as meaning that less than 20%, preferably less than 10%, more preferably less than 5%, of a quantity of water introduced for cooling into a flow of converter gas is produced as waste water.
  • the dry or quasi-dry cooling in the second cooling device is preferably carried out to a temperature ⁇ 280 ° C, more preferably to a
  • Filters that can dust off to a dust content of ⁇ 5 mg / Nm 3 are, for example, fabric filters, ceramic filters or steel filters.
  • Tissue filters are understood to mean filter systems which consist of a fabric material but can take on a wide variety of forms such as, for example, cartridges, tubes, bags, cassettes.
  • a gas to be dedusted must have a temperature that is below the temperature at which the material of the fabric filters begins to thermally decompose.
  • Tissue filters can, for example, commercially available filter materials with a
  • Resistant to permanent operating temperature of> 200 ° such as polyamide P84, meta aramid, glass fiber, PTFE, carbon fiber or equivalent.
  • the upper limit of resistance for use of such materials is at peak temperatures of about 280 ° C.
  • the temperature of the converter gas must not be more than 280 ° C, preferably ⁇ 200 ° C.
  • the filter can fulfill its filter function even at temperatures of up to 500 ° C or above. Despite further cooling of the converter gas in the second cooling device, temperatures of up to> 500 ° C. can occur on the filters themselves, and thus possibly destroy the filter material to lead. This can happen, for example, when pyrophoric on the
  • Filter material deposited dust such as metallic iron, reacts with oxygen in the exhaust gas and is oxidized. Such oxidation is highly exothermic and can lead to temperatures> 500 ° C. Oxygen in the exhaust gas may occur in periods of operation of a converter in which no refining is performed, for example during charging or tapping.
  • the dedusted converter gas is then cooled in a third cooling device, preferably to a temperature ⁇ 70 ° C.
  • the cooling is dry or quasi-dry according to the invention, processing of wastewater coming into direct contact with the converter gas to be cooled can also be completely avoided at this point or carried out with little effort.
  • the dry cooling takes place in the second cooling device and / or the third cooling device by indirect heat exchange.
  • 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. Accordingly, the cooling medium is not contaminated by contact with converter gas and accordingly does not have to be laboriously cleaned or disposed of.
  • 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.
  • the indirect heat exchange takes place in the second cooling device and / or the third
  • 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.
  • 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 be formed in the area in which converter gas is passed over them, as pipes in the
  • Converted gas introduced and from which converter gas can be discharged 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 to use existing blowers depending on the measured temperature of the cooled dedusted converter gas and selected
  • Cooling circuit instead.
  • 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
  • Cooling device by a combination of indirect gas-gas heat exchange and gas-liquid heat exchange instead, for example, first gas-gas heat exchange and then further cooling by gas-liquid heat exchange.
  • the quasi-dry cooling takes place in the second cooling device and / or the third cooling device by an evaporative cooling process.
  • a liquid cooling medium for example water
  • 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.
  • 2-fluid nozzles are used, which are operated for example with nitrogen, or high-pressure nozzles, for example
  • L / G stands for the ratio of liters of cooling medium to cubic meters of gas to be cooled. In such an operation, a proportion of the cooling medium is evaporated - it evaporates - while the majority does not evaporate, but only heated. Evaporation and evaporation in this context are different terms for the same process. Since not the heat of evaporation is used to cool the gas stream from converter gas when heated, for a given cooling, the addition of more cooling medium will be necessary than if the whole or the majority of the
  • Cooling medium is evaporated. Accordingly, the gas coolers conventionally used as gas scrubbers are large
  • Cooling medium is introduced as a mist of fine droplets, which - resulting in cooling the converter gas - evaporation of the cooling medium compared to conventional wet-working, acting as gas scrubbers gas coolers easier.
  • 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, virtually completely evaporates, according to the invention, no or no flow occurs even with an evaporative cooling process during the cooling of a gas stream little wastewater, which has come into direct contact with the cooled gas stream during cooling.
  • Low wastewater is to be understood as meaning that less than 20%, preferably less than 10%, more preferably less than 5%, of a quantity of water introduced for cooling into a flow of converter gas is produced as waste water.
  • wastewater is also liquid
  • Cooling medium to understand which has come in the cooling with the cooled gas stream in direct contact, and therefore must be prepared.
  • Another object of the invention is an apparatus for performing a method according to the invention, with a first cooling device for the indirect cooling of converter gas by heat exchange between the converter gas and a liquid cooling medium, preferably with steam and / or hot water generation,
  • the second cooling device is a cooling device for the dry or
  • the dedusting device is equipped with filters.
  • the first cooling device opens into the second cooling device. This means that between the first cooling device and the second cooling device no further device for the treatment of the converter gas is present as
  • a coarse dedusting device for example, a coarse dedusting device.
  • the converter gas leaving the first cooling device is introduced into the second cooling device without coarse dedusting taking place between leaving the first cooling device and entering the second cooling device
  • the Entstaubungsvornchtung is preferably taking into account to ensure explosion-proof, explosion-proof and
  • the first cooling device for indirect cooling of converter gas is preferably a cooling device for indirect cooling of converter gas
  • Converter gas with hot water production or a cooling device for the indirect cooling of converter gas under steam and hot water production, or a cooling device for the indirect cooling of converter gas under steam or hot water production.
  • the device comprises filters which are designed as fabric filters.
  • the material of the fabric filter is a material from the group
  • the material of the fabric filter can also consist of a material from this group.
  • the filters comprise ceramic filters and / or metal filters.
  • the filters may also be ceramic filters and / or metal filters.
  • the device also includes a third one
  • Cooling device for cooling the converter gas exiting the dedusting device wherein the third cooling device comprises a cooling device for dry, quasi-dry or wet cooling.
  • the cooling device for dry cooling comprises a device for indirect heat exchange.
  • the cooling device for dry cooling may also be a device for indirect heat exchange.
  • the device for indirect heat exchange comprises a device for carrying out an indirect gas-gas heat exchange.
  • Heat exchange may also be an apparatus for conducting an indirect gas-gas heat exchange.
  • the device for indirect heat exchange comprises a device for carrying out an indirect gas-liquid heat exchange with a closed cooling circuit.
  • a closed cooling circuit In the closed cooling circuit also re-cooling of heated liquid cooling medium takes place.
  • the indirect heat exchange device may also be a device for carrying out a closed-loop indirect gas-liquid heat exchange.
  • the device for indirect heat exchange comprises a device for carrying out an indirect gas-liquid heat exchange with closed cooling circuit and a device for carrying out an indirect gas-gas heat exchange.
  • the cooling device for quasi-dry cooling is a device for carrying out a
  • nozzles for injecting a liquid cooling medium with droplet diameter d90 of the injected liquid cooling medium d90 ⁇ 1000 micrometer are present in the apparatus for carrying out an evaporative cooling process.
  • FIG. 1 shows schematically the treatment according to the invention of
  • converter gas 1 represented by corrugated arrows, rises from a converter into a suction hood 2.
  • suction hood Through the suction hood is the
  • Converter gas in the cooling chimney which is a first cooling device for indirect cooling, in the case shown under steam generation, passed.
  • the cooling chimney comprises the chimney parts 3a and 3b.
  • steam which is produced by heat exchange between the converter gas and the cooling medium, which is guided in the cooling chimney (not shown), is fed to a steam drum 5.
  • a first cooling step for the converter gas takes place by means of indirect cooling by water / steam.
  • the converter gas has a temperature of about 900 ° C and is further cooled in the chimney part 3b to a temperature of about 400 ° C.
  • the converter gas After the converter gas exits the first cooling device, it enters a second cooling device 6; this will be the first cooling device
  • the first cooling device opens into the second cooling device. This means that between the first cooling device and the second cooling device no further device for the treatment of the converter gas is present as
  • a coarse dedusting device for example, a coarse dedusting device.
  • This is a cooling device for dry cooling, in the example shown by indirect gas-gas heat exchange. The cooling takes place in that the converter gas is passed through plate-shaped or tubular hollow body, via which 7 cooling air is blown by fans.
  • the converter gas is passed through plate-shaped or tubular hollow body, via which 7 cooling air is blown by fans.
  • Cooling device is cooled to ⁇ 200 ° C.
  • the converter gas emerging from the second cooling device 6 is then passed into a dedusting device 8, in which it is dedusted by means of fabric filters 9 to a dust content of ⁇ 5 mg / Nm 3 .
  • Dedusting device discharged About a switching station 10, the cooled and dedusted converter gas can be passed to a flare chimney 1 1, where it is burned. It may alternatively be directed to a gas storage device 12.
  • the converter gas is then led to the flare chimney 1 1, if its CO concentration is below a threshold necessary for an economically useful further use. This may be the case during periods such as bubble start or end of bubble, or tapping periods at converter 1.
  • a threshold necessary for an economically useful further use. This may be the case during periods such as bubble start or end of bubble, or tapping periods at converter 1.
  • the converter gas is supplied by switching the switching station 10 of the gas storage device 12.
  • the cooled and dedusted converter gas is subjected to dry cooling in a third cooling device 13.
  • This is a cooling device for dry cooling, in the example shown by indirect gas-gas heat exchange.
  • the cooling takes place - as in the second cooling device 6 - characterized in that the converter gas is passed through plate-shaped hollow body through which blowers 14 cooling air is blown.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)

Abstract

L'invention concerne un procédé pour le dépoussiérage et le refroidissement de gaz de convertisseur ainsi qu'un dispositif pour la mise en œuvre du procédé. Dans le procédé pour le dépoussiérage de gaz de convertisseur, le gaz de convertisseur produit lors de la fabrication de l'acier est tout d'abord soumis à un refroidissement indirect dans un premier dispositif de refroidissement, de préférence avec production de vapeur et/ou d'eau chaude, est ensuite soumis à un autre refroidissement dans un deuxième dispositif de refroidissement (6), avant d'être dépoussiéré dans un dispositif de dépoussiérage (8) au moyen de filtres jusqu'à une teneur en poussières < 5 mg/Nm3. Le gaz de convertisseur quitte le premier dispositif de refroidissement, dans lequel il a été soumis à un refroidissement indirect, de préférence avec production de vapeur et/ou d'eau chaude, à une température qui est ≤ 1 100 °C, de préférence ≤ 950 °C, plus préférentiellement ≤ 750 °C et ≥ 350 °C, de préférence ≥ 400 °C, plus préférentiellement ≥ 450 °C, idéalement ≥ 500 °C. Un refroidissement sec ou pratiquement sec a lieu dans le deuxième dispositif de refroidissement (6), de préférence jusqu'à une température ≤ 280 °C, plus préférentiellement jusqu'à une température ≤ 250 °C, idéalement jusqu'à une température ≤ 200 °C.
PCT/EP2012/064180 2011-07-21 2012-07-19 Procédé et dispositif pour le dépoussiérage et le refroidissement de gaz de convertisseur Ceased WO2013011089A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1073/2011A AT511430B1 (de) 2011-07-21 2011-07-21 Verfahren und vorrichtung zur entstaubung und kühlung von konvertergas
ATA1073/2011 2011-07-21

Publications (1)

Publication Number Publication Date
WO2013011089A1 true WO2013011089A1 (fr) 2013-01-24

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PCT/EP2012/064180 Ceased WO2013011089A1 (fr) 2011-07-21 2012-07-19 Procédé et dispositif pour le dépoussiérage et le refroidissement de gaz de convertisseur

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Country Link
AT (1) AT511430B1 (fr)
WO (1) WO2013011089A1 (fr)

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CN103388047A (zh) * 2013-08-26 2013-11-13 中冶华天工程技术有限公司 转炉干法除尘系统及工艺
CN104180678A (zh) * 2014-09-15 2014-12-03 上海宝钢节能环保技术有限公司 防堵塞的转底炉烟气处理系统及方法
EP3081311A1 (fr) * 2015-04-13 2016-10-19 Lechler GmbH Ensemble de pulverisation et procede de fonctionnement d'un ensemble de pulverisation
CN110066900A (zh) * 2019-06-10 2019-07-30 成渝钒钛科技有限公司 一种钒钛转炉煤气电除尘方法
CN110308007A (zh) * 2019-07-26 2019-10-08 武汉钢铁有限公司 轧机喷雾除尘试验装置
CN110763027A (zh) * 2019-11-09 2020-02-07 天津渤化永利化工股份有限公司 一种加快变换炉降温系统及操作方法
EP3623033A1 (fr) 2018-09-13 2020-03-18 Primetals Technologies Austria GmbH Dispositif de dépoussiérage de gaz de convertisseur
CN112557070A (zh) * 2020-11-05 2021-03-26 太原理工大学 一种气动力粉尘发生装置的使用方法
CN113755663A (zh) * 2021-09-10 2021-12-07 中冶赛迪技术研究中心有限公司 转炉干法除尘系统的防结露糊袋方法
CN114540569A (zh) * 2022-02-23 2022-05-27 山东钢铁集团永锋临港有限公司 一种转炉干法除尘工艺条件下蒸发冷筒体降温的方法
CN115420109A (zh) * 2022-07-15 2022-12-02 马鞍山市中桥金属材料有限公司 一种炼钢生产用防噪除尘装置
CN115962664A (zh) * 2021-10-11 2023-04-14 中冶京诚工程技术有限公司 一种转炉煤气间接换热冷却器

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CN106929626B (zh) * 2017-02-25 2022-11-04 秦皇岛同力达环保能源股份有限公司 炼钢转炉煤气除尘余热回收工艺及系统
CN108531681B (zh) * 2018-05-08 2020-02-18 中冶东方工程技术有限公司 转炉烟气干法除尘自动控制方法
CN117883911B (zh) * 2024-01-18 2024-08-16 苏州大学附属第二医院 麻醉废气处理装置

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