CN114058782A - Method and system for treating steelmaking fly ash of electric arc furnace - Google Patents
Method and system for treating steelmaking fly ash of electric arc furnace Download PDFInfo
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- CN114058782A CN114058782A CN202111324952.5A CN202111324952A CN114058782A CN 114058782 A CN114058782 A CN 114058782A CN 202111324952 A CN202111324952 A CN 202111324952A CN 114058782 A CN114058782 A CN 114058782A
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- Prior art keywords
- dust removal
- ash
- fly ash
- carbon powder
- electric arc
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- 239000010881 fly ash Substances 0.000 title claims abstract description 55
- 238000010891 electric arc Methods 0.000 title claims abstract description 37
- 238000009628 steelmaking Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000428 dust Substances 0.000 claims abstract description 121
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 72
- 238000003723 Smelting Methods 0.000 claims abstract description 13
- 239000007789 gas Substances 0.000 claims abstract description 8
- 239000012159 carrier gas Substances 0.000 claims abstract description 6
- 239000000843 powder Substances 0.000 claims abstract description 6
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 239000002956 ash Substances 0.000 claims description 86
- 238000002347 injection Methods 0.000 claims description 25
- 239000007924 injection Substances 0.000 claims description 25
- 239000007921 spray Substances 0.000 claims description 20
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 238000009845 electric arc furnace steelmaking Methods 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000011701 zinc Substances 0.000 abstract description 5
- 229910052725 zinc Inorganic materials 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
- 229910052742 iron Inorganic materials 0.000 abstract description 4
- 239000002893 slag Substances 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000006260 foam Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/54—Processes yielding slags of special composition
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/30—Obtaining zinc or zinc oxide from metallic residues or scraps
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/02—Working-up flue dust
-
- 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
- C21C2200/00—Recycling of waste material
-
- 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
- C21C2300/00—Process aspects
- C21C2300/02—Foam creation
-
- 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
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A method for treating dust generated in smelting of an electric arc furnace includes collecting the dust generated in smelting of the electric arc furnace, mixing the dust with carbon powder in proportion through an injector, and spraying the mixture into the electric arc furnace. The method specifically comprises the following steps: s1, collecting the dust in the dust storage bin; s2, conveying the fly ash into a fly ash collecting bin in front of the furnace through carrier gas, and S3 fluidizing the fly ash and then forming powder airflow through an ejector; s4, mixing the fly ash with the fluidized carbon powder in the ejector; s5, the fly ash mixed with the carbon powder enters an electric arc furnace through an ejector to participate in smelting. The invention has the beneficial effects that the gas is used for conveying the fly ash and the carbon powder together into the electric arc furnace, and the iron oxide in the fly ash is reduced by the carbon powder to generate gas foamed slag. The method has the advantages that the fly ash can be repeatedly used, the transportation amount of the fly ash is reduced, iron in the fly ash is recycled, the zinc content in the fly ash is improved, the labor intensity of workers is reduced, the pollution to the environment is reduced, and the steel making cost of the electric arc furnace is reduced.
Description
Technical Field
The invention relates to the field of electric arc steelmaking, in particular to a method and a system for treating dust generated in electric arc steelmaking.
Background
The electric arc furnace steelmaking technology in China is widely popularized in various places, the fly ash in electric furnace steelmaking is generally used for smelting and extracting zinc, the zinc content of the fly ash is generally 5-15%, the volume and the weight of the fly ash are small, the transportation and the storage are very difficult, the transportation and the smelting can not only pollute the environment, but also increase the steelmaking cost of population, water, electricity and the like, and the economic benefit is influenced. Therefore, how to effectively treat and recycle the fly ash is a problem which is urgently needed to be solved at present.
Disclosure of Invention
The invention overcomes the defects in the prior art and provides a method and a system for treating steelmaking fly ash of an electric arc furnace.
The purpose of the invention is realized by the following technical scheme.
A method for treating dust generated in smelting of an electric arc furnace includes collecting the dust generated in smelting of the electric arc furnace, mixing the dust with carbon powder in proportion through an injector, and spraying the mixture into the electric arc furnace.
The method for treating the steelmaking fly ash of the electric arc furnace comprises the following steps:
s1, collecting the dust in the dust storage bin;
s2, conveying the fly ash into a fly ash collecting bin in front of the furnace through carrier gas;
s3, fluidizing the fly ash and then forming a powder gas flow through an ejector;
s4, mixing the fly ash with the fluidized carbon powder in the ejector;
s5, the fly ash mixed with the carbon powder enters an electric arc furnace through an ejector to participate in smelting.
The utility model provides an electric arc furnace steelmaking dust removal's processing system, including dust removal ash transport pipe way group, carbon powder transport pipe way group and mixed sprayer, dust removal ash transport pipe way group is including dust removal ash collection device, the dust removal ash sprays jar, dust removal ash fluidizer and dust removal ash sprayer, dust removal ash collection device sprays the jar with the dust removal and is connected, it is connected with the dust removal ash sprayer through dust removal ash fluidizer and dust removal ash sprayer to spray the jar, dust removal ash sprayer spout passes through the pipeline intercommunication with mixed sprayer inner chamber, carbon powder transport pipe way group is linked together with mixed sprayer inner chamber.
Dust removal ash collection device collects the storehouse including storing up grey storehouse, dust removal ash spray chamber and stokehold dust removal, is equipped with pneumatic valve on the ash storehouse of storage, and pneumatic valve is linked together with the dust removal ash spray chamber, and dust removal ash spray chamber and stokehold dust removal ash are collected the storehouse and are linked together through the transfer pipe, stokehold dust removal ash collect the storehouse with the dust removal ash sprays the jar and passes through the pipeline intercommunication.
The connection mode of the stokehole dust collection bin and the dust injection tank is flexible connection.
The carbon powder conveying pipeline set comprises a carbon powder bin, a carbon powder injection tank and a carbon powder fluidizer, wherein the carbon powder bin is connected with the carbon powder injection tank, the carbon powder fluidizer is arranged on the carbon powder injection tank, and the fluidizing port end of the carbon powder fluidizer is communicated with the inner cavity of the mixing injector.
The connection mode of the carbon powder cabin and the carbon powder injection tank is soft connection.
The invention has the beneficial effects that: the scheme is that the gas conveying dedusting ash and carbon powder enter an electric arc furnace together, and iron oxide in the dedusting ash is reduced by the carbon powder to generate gas foam slag. The method has the advantages that the fly ash can be repeatedly used, the transportation amount of the fly ash is reduced, iron in the fly ash is recycled, the zinc content in the fly ash is improved, the labor intensity of workers is reduced, the pollution to the environment is reduced, and the steel making cost of the electric arc furnace is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a system for treating steelmaking fly ash in an electric arc furnace, wherein arrows indicate the trend of the fly ash;
FIG. 2 is a flow chart of a method for treating steelmaking fly ash in an electric arc furnace;
in the figure: 1, a dust removal ash conveying pipeline group; 11 ash storage bin; 12 a dust removal ash injection chamber; 13, a dust collection bin in front of the furnace; 14, a fly ash injection tank; 15 dust removal fluidization device; 16 dust ejector; 2 carbon powder conveying pipeline group; 21 a carbon powder bin; 22 a carbon powder injection tank; 23 carbon powder fluidizer; 3 mixing the ejector.
Detailed Description
The technical solution of the present invention is further illustrated by the following specific examples.
Examples
A method for treating dust generated in smelting of an electric arc furnace includes collecting the dust generated in smelting of the electric arc furnace, mixing the dust with carbon powder in proportion through an injector, and spraying the mixture into the electric arc furnace.
The method for treating the steelmaking fly ash of the electric arc furnace comprises the following steps:
s1, collecting the dust in the dust storage bin;
s2, conveying the fly ash into a fly ash collecting bin in front of the furnace through carrier gas;
s3, fluidizing the fly ash and then forming a powder gas flow through an ejector;
s4, mixing the fly ash with the fluidized carbon powder in the ejector;
s5, the fly ash mixed with the carbon powder enters an electric arc furnace through an ejector to participate in smelting.
The utility model provides a processing system of electric arc furnace steelmaking dust removal, including dust removal ash transport pipe way group 1, carbon powder transport pipe way group 2 and mixed sprayer 3, dust removal ash transport pipe way group 1 includes dust removal ash collection device, the dust removal ash sprays jar 14, dust removal ash fluidizer 15 and dust removal ash sprayer 16, dust removal ash collection device sprays jar 14 with the dust removal ash and is connected, it is connected with dust removal ash sprayer 16 through dust removal ash fluidizer 15 and dust removal ash sprayer 16 to spray the jar, 16 spouts of dust removal ash sprayer pass through the pipeline intercommunication with mixed sprayer 3 inner chambers, carbon powder transport pipe way group 2 is linked together with mixed sprayer 3 inner chambers.
The dust removal ash collection device is equipped with pneumatic valve including storing up ash storehouse 11, dust removal ash spray chamber 12 and stokehold dust removal ash collection storehouse 13 on the ash storehouse 11, and pneumatic valve is linked together with dust removal ash spray chamber 12, and dust removal ash spray chamber 12 and stokehold dust removal ash collection storehouse 13 are linked together through the transfer pipe, and stokehold dust removal ash collection storehouse 13 and dust removal ash injection tank 14 pass through the pipeline intercommunication.
The connection mode of the furnace front fly ash collecting bin 13 and the fly ash injection tank 14 is soft connection.
The carbon powder conveying pipeline set 2 comprises a carbon powder bin 21, a carbon powder injection tank 22 and a carbon powder fluidizer 23, wherein the carbon powder bin 21 is connected with the carbon powder injection tank 22, the carbon powder fluidizer 23 is arranged on the carbon powder injection tank 22, and the fluidizing port end of the carbon powder fluidizer 23 is communicated with the inner cavity of the mixing injector 3.
The connection mode of the toner hopper 21 and the toner injection tank 22 is soft connection.
The theory of operation of this scheme is as follows, as shown in fig. 1, adopt dust removal ash transport pipe way group 1 to carry the dust removal ash to mix with the carbon dust in mixing ejector 3, the effect of dust removal ash collection device is for utilizing the dust removal ash jet chamber 12 to transport to the dust removal ash collection storehouse 13 before the stove with the dust removal ash of collecting in the ash storage storehouse 11, and the dust removal ash is transported to the dust removal ash collection storehouse 13 before the stove in through the carrier gas to be equipped with follow-up mixture, be convenient for control the flow of dust removal ash. The dust removal ash is collected the storehouse 13 pressure release by the stokehold dust removal and is discharged to the dust removal ash injection tank 14 in, be equipped with dust removal ash fluidizer 15 on the dust removal ash injection tank 14, the dust removal ash increases its mobility through dust removal ash fluidizer 15 to blow in the dust removal ash sprayer 16 by the carrier gas, the dust removal ash is become the powder air current through the blowout of dust removal ash sprayer 16 and gets into in the mixed sprayer 3 and mix the back with the carbon dust, spout the inside slagging of electric arc furnace by mixed sprayer 3 again, realize the reuse of dust removal.
The carbon powder conveying pipeline group 2 is used for increasing the fluidity of the carbon powder so that the carbon powder can be better mixed with the dedusting ash, the carbon powder is conveyed to the carbon powder injection tank 22 from the carbon powder bin 21, and the carbon powder is conveyed to the mixing injector 3 to be mixed with the dedusting ash after the fluidity is increased by the carbon powder fluidizer 23.
Further, in order to facilitate the transmission of the fly ash and the carbon powder, a dust collection bin 13 and a dust injection tank 14 are arranged in front of the furnace
The connection mode of the carbon powder bin 21 and the carbon powder injection tank 22 is soft connection.
As shown in figure 2, the invention mixes the fly ash and carbon powder and sprays the mixture into the electric arc furnace for reaction, and the carbon powder is used for reducing iron oxide in the fly ash to generate gas for making foam slag, thereby effectively improving the recovery rate of iron and reducing the oxygen consumption. The method has the advantages of playing a role of reusing the dust, reducing the transportation amount of the dust, recovering iron in the dust, improving the zinc content in the dust, reducing the labor intensity of workers, reducing the pollution to the environment and reducing the steelmaking cost of the electric arc furnace.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (7)
1. The method for treating the steelmaking fly ash of the electric arc furnace is characterized by comprising the following steps of: collecting dust generated by smelting in the electric arc furnace, and spraying the dust into the electric arc furnace after powder airflow formed by the dust is mixed with carbon powder in proportion by an injector.
2. The method for treating steelmaking fly ash of an electric arc furnace according to claim 1, comprising the following steps:
s1, collecting the dust in the dust storage bin;
s2, conveying the fly ash into a fly ash collecting bin in front of the furnace through carrier gas;
s3, fluidizing the fly ash and then forming a powder gas flow through an ejector;
s4, mixing the fly ash with the fluidized carbon powder in the ejector;
s5, the fly ash mixed with the carbon powder enters an electric arc furnace through an ejector to participate in smelting.
3. The utility model provides a processing system of electric arc furnace steelmaking fly ash which characterized in that: including dust removal ash transport pipe way group, carbon dust transport pipe way group and mixed sprayer, dust removal ash transport pipe way group is including dust removal ash collection device, dust removal ash injection tank, dust removal ash fluidizer and dust removal ash sprayer, and dust removal ash collection device sprays the jar with the dust removal ash and is connected, sprays the jar and is connected through dust removal ash fluidizer and dust removal ash sprayer, and dust removal ash sprayer spout passes through the pipeline intercommunication with mixed sprayer inner chamber, and carbon dust transport pipe way group is linked together with mixed sprayer inner chamber.
4. The system for treating steelmaking fly ash of an electric arc furnace as claimed in claim 3, wherein: dust removal ash collection device collects the storehouse including storing up grey storehouse, dust removal ash spray chamber and stokehold dust removal, is equipped with pneumatic valve on the ash storehouse of storage, and pneumatic valve is linked together with the dust removal ash spray chamber, and dust removal ash spray chamber and stokehold dust removal ash are collected the storehouse and are linked together through the transfer pipe, stokehold dust removal ash collect the storehouse with the dust removal ash sprays the jar and passes through the pipeline intercommunication.
5. The system for treating steelmaking fly ash of an electric arc furnace as claimed in claim 4, wherein: the connection mode of the stokehole dust collection bin and the dust injection tank is flexible connection.
6. The system for treating steelmaking fly ash of an electric arc furnace as claimed in claim 3, wherein: the carbon powder conveying pipeline set comprises a carbon powder bin, a carbon powder injection tank and a carbon powder fluidizer, wherein the carbon powder bin is connected with the carbon powder injection tank, the carbon powder fluidizer is arranged on the carbon powder injection tank, and the fluidizing port end of the carbon powder fluidizer is communicated with the inner cavity of the mixing injector.
7. The system for treating steelmaking fly ash of an electric arc furnace as claimed in claim 6, wherein: the connection mode of the carbon powder cabin and the carbon powder injection tank is soft connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111324952.5A CN114058782A (en) | 2021-11-10 | 2021-11-10 | Method and system for treating steelmaking fly ash of electric arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111324952.5A CN114058782A (en) | 2021-11-10 | 2021-11-10 | Method and system for treating steelmaking fly ash of electric arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114058782A true CN114058782A (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111324952.5A Pending CN114058782A (en) | 2021-11-10 | 2021-11-10 | Method and system for treating steelmaking fly ash of electric arc furnace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115522013A (en) * | 2022-08-30 | 2022-12-27 | 马鞍山钢铁股份有限公司 | Method for effectively solving problem of converter slag drying and converter drying inhibitor |
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|---|---|---|---|---|
| JP3035285B1 (en) * | 1999-01-20 | 2000-04-24 | エヌケーマテック株式会社 | Method for producing carburized material for steel making containing electric furnace dust, carburized material for steel making obtained thereby and method for recycling electric furnace dust |
| CN1331347A (en) * | 2000-03-16 | 2002-01-16 | 陈延东 | Powder-spraying metallurgical technology for smelting steel in ultrahigh-power electric furnace |
| KR20040107804A (en) * | 2003-06-13 | 2004-12-23 | 주식회사 포스코 | Carbon injection device of electric furnace |
| CN104212975A (en) * | 2014-08-21 | 2014-12-17 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Smelting process of recycling chromium by combined-injection dephosphorizing using stainless steel precipitator dust |
| CN110724785A (en) * | 2019-10-18 | 2020-01-24 | 甘肃酒钢集团宏兴钢铁股份有限公司 | System and method for spraying stainless steel dedusting ash to bottom of dephosphorization converter |
| CN111363885A (en) * | 2020-04-09 | 2020-07-03 | 苏州大学 | Method for treating stainless steel dedusting ash by using electric arc furnace |
| CN217026012U (en) * | 2021-11-10 | 2022-07-22 | 天津喆丰环保科技有限公司 | Processing system of electric arc furnace steelmaking fly ash |
-
2021
- 2021-11-10 CN CN202111324952.5A patent/CN114058782A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3035285B1 (en) * | 1999-01-20 | 2000-04-24 | エヌケーマテック株式会社 | Method for producing carburized material for steel making containing electric furnace dust, carburized material for steel making obtained thereby and method for recycling electric furnace dust |
| CN1331347A (en) * | 2000-03-16 | 2002-01-16 | 陈延东 | Powder-spraying metallurgical technology for smelting steel in ultrahigh-power electric furnace |
| KR20040107804A (en) * | 2003-06-13 | 2004-12-23 | 주식회사 포스코 | Carbon injection device of electric furnace |
| CN104212975A (en) * | 2014-08-21 | 2014-12-17 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Smelting process of recycling chromium by combined-injection dephosphorizing using stainless steel precipitator dust |
| CN110724785A (en) * | 2019-10-18 | 2020-01-24 | 甘肃酒钢集团宏兴钢铁股份有限公司 | System and method for spraying stainless steel dedusting ash to bottom of dephosphorization converter |
| CN111363885A (en) * | 2020-04-09 | 2020-07-03 | 苏州大学 | Method for treating stainless steel dedusting ash by using electric arc furnace |
| CN217026012U (en) * | 2021-11-10 | 2022-07-22 | 天津喆丰环保科技有限公司 | Processing system of electric arc furnace steelmaking fly ash |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115522013A (en) * | 2022-08-30 | 2022-12-27 | 马鞍山钢铁股份有限公司 | Method for effectively solving problem of converter slag drying and converter drying inhibitor |
| CN115522013B (en) * | 2022-08-30 | 2023-07-25 | 马鞍山钢铁股份有限公司 | Method for effectively solving converter slag re-drying problem and converter re-drying inhibitor |
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