JP2011117709A - スラグ水砕時の排ガス処理方法及び処理設備 - Google Patents
スラグ水砕時の排ガス処理方法及び処理設備 Download PDFInfo
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- JP2011117709A JP2011117709A JP2010009169A JP2010009169A JP2011117709A JP 2011117709 A JP2011117709 A JP 2011117709A JP 2010009169 A JP2010009169 A JP 2010009169A JP 2010009169 A JP2010009169 A JP 2010009169A JP 2011117709 A JP2011117709 A JP 2011117709A
- Authority
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- Prior art keywords
- exhaust gas
- water
- metal
- slag
- smelting furnace
- Prior art date
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Links
- 239000002893 slag Substances 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000005469 granulation Methods 0.000 title abstract description 19
- 239000007789 gas Substances 0.000 claims abstract description 100
- 239000002184 metal Substances 0.000 claims abstract description 65
- 229910052751 metal Inorganic materials 0.000 claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 54
- 238000003723 Smelting Methods 0.000 claims abstract description 41
- 239000003517 fume Substances 0.000 claims abstract description 28
- 239000000428 dust Substances 0.000 claims abstract description 23
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000010949 copper Substances 0.000 claims description 20
- 229910052802 copper Inorganic materials 0.000 claims description 19
- 239000012719 wet electrostatic precipitator Substances 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 229910052725 zinc Inorganic materials 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 239000002351 wastewater Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 2
- 230000003472 neutralizing effect Effects 0.000 claims 1
- 230000003179 granulation Effects 0.000 description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 239000000779 smoke Substances 0.000 description 12
- 239000011701 zinc Substances 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 239000007921 spray Substances 0.000 description 6
- 239000002245 particle Substances 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 239000010419 fine particle Substances 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 2
- 230000002776 aggregation Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 239000012717 electrostatic precipitator Substances 0.000 description 2
- -1 ferrous metals Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Images
Classifications
-
- 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
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/0054—Slag, slime, speiss, or dross treating
-
- 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
- C22B7/04—Working-up slag
-
- 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
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
- C21B2400/022—Methods of cooling or quenching molten slag
- C21B2400/024—Methods of cooling or quenching molten slag with the direct use of steam or liquid coolants, e.g. water
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/066—Receptacle features where the slag is treated
- C21B2400/072—Tanks to collect the slag, e.g. water tank
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Electrostatic Separation (AREA)
- Manufacture Of Iron (AREA)
- Furnace Details (AREA)
- Removal Of Specific Substances (AREA)
Abstract
【解決手段】非鉄金属熔錬炉から排出されるスラグを水砕したときに発生する水蒸気を主成分とし、金属フュームを含有する排ガス5を処理する方法であって、該排ガス5を湿式電気集塵機9で処理する工程を含む方法であり、該排ガス処理設備は、排ガス収集手段7と排ガス通路8と湿式電気集塵機9とを備え、排ガス収集手段7は排ガス発生箇所の上方に設けられ、排ガス収集手段7と湿式電気集塵機9は排ガス通路8によって連結されている。
【選択図】図1
Description
本実施例では、銅製錬において、自溶炉に付属の電気錬カン炉から排出される高温スラグを水砕したときに発生する排ガスの処理を行った。図1の排ガス処理スキームに従う排ガス処理設備を構築した。電気錬カン炉から排出されたスラグは、スラグ樋を介して水砕樋に流入し、その水砕樋を流下してきた水砕水により水砕され、水砕スラグとして水砕槽内に落下する。水砕時に発生する多量の水蒸気を伴う排ガスを、水砕樋及び水砕槽を覆う集煙フードで回収した。集煙フード内の排ガス温度は80〜90℃程度であった。集煙フードに回収された排ガスは、集煙フード上部にある煙道口を通って煙道に入り、湿式電気集塵機へと送った。湿式電気集塵機に流入する排ガス温度は30〜80℃程度であり、湿式電気集塵機から排出される排ガス温度は20〜40℃程度であった。
・スラグ水砕量 2.5t/min
・水砕前スラグ温度 1150〜1300℃
・水砕水量 20t/min
・集煙フードでの排ガス回収量 300m3/min
・湿式電気集塵機仕様
−メーカ:エルデック社製ノイルフト型
−電圧:15〜25kV
−電流:60〜100mA
−スプレー水量:約20L/min
実施例1と同様に、銅製錬において、自溶炉に付属の電気錬カン炉から排出される高温スラグを水砕したときに発生する排ガスの処理を行った。ただし、実施例2では実施例1よりも集煙フードでの排ガス回収量を多くして行った。
・スラグ水砕量 2.5t/min
・水砕前スラグ温度 1150〜1300℃
・水砕水量 20t/min
・集煙フードでの排ガス回収量 500m3/min
・湿式電気集塵機仕様
−メーカ:エルデック社製ノイルフト型(2区、3段型)
区:区画ごとに別の高圧電源装置によって荷電しているのでその区分数。
段:1対の放電極及び集塵極を1段とし、ガス流れ方向に設置した段数。
−電圧:30〜35kV(1区目、2区目)
−電流:110〜150mA(1区目)、140〜180mA(2区目)、
−スプレー水量:約10L/min
2 水砕水
3 スラグ樋
4 水砕樋
5 排ガス
6 水砕槽
7 集煙フード
8 煙道
9 湿式電気集塵機
10 排ガス
11 排水
12 排水槽
13 排水
Claims (7)
- 非鉄金属熔錬炉から排出されるスラグを水砕したときに発生する水蒸気を主成分とし、金属フュームを含有する排ガスを処理する方法であって、該排ガスを湿式電気集塵機で処理する工程を含む方法。
- 非鉄金属は銅である請求項1に記載の方法。
- 排ガスはCu、Zn、Ni及びFeから選択される一種以上の金属フュームを含有する請求項1又は2に記載の方法。
- 湿式電気集塵機から排出される金属成分を含有する排水を中和処理後、ろ過し、残渣を熔錬炉へ戻す工程を更に含む請求項1〜3何れか一項記載の方法。
- 非鉄金属熔錬炉から排出されるスラグを水砕したときに発生する水蒸気を主成分とし、金属フュームを含有する排ガスを処理する設備であって、排ガス収集手段と排ガス通路と湿式電気集塵機とを備え、排ガス収集手段は排ガス発生箇所の上方に設けられ、排ガス収集手段と湿式電気集塵機は排ガス通路によって連結されている設備。
- 非鉄金属は銅である請求項5に記載の設備。
- 排ガスはCu、Zn、Ni及びFeから選択される一種以上の金属フュームを含有する請求項5又は6に記載の設備。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010009169A JP5037635B2 (ja) | 2009-03-26 | 2010-01-19 | スラグ水砕時の排ガス処理方法及び処理設備 |
KR1020100018908A KR101208155B1 (ko) | 2009-03-26 | 2010-03-03 | 슬래그 수쇄 시의 배기 가스 처리 방법 및 처리 설비 |
US12/728,861 US20100243454A1 (en) | 2009-03-26 | 2010-03-22 | Process for treating exhaust gas generated during water-granulation of slag and system for said treatment |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009077213 | 2009-03-26 | ||
JP2009077213 | 2009-03-26 | ||
JP2009250403 | 2009-10-30 | ||
JP2009250403 | 2009-10-30 | ||
JP2010009169A JP5037635B2 (ja) | 2009-03-26 | 2010-01-19 | スラグ水砕時の排ガス処理方法及び処理設備 |
Publications (2)
Publication Number | Publication Date |
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JP2011117709A true JP2011117709A (ja) | 2011-06-16 |
JP5037635B2 JP5037635B2 (ja) | 2012-10-03 |
Family
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Family Applications (1)
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JP2010009169A Active JP5037635B2 (ja) | 2009-03-26 | 2010-01-19 | スラグ水砕時の排ガス処理方法及び処理設備 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20100242683A1 (ja) |
JP (1) | JP5037635B2 (ja) |
CL (1) | CL2009002242A1 (ja) |
Cited By (4)
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JP2016528461A (ja) * | 2013-07-01 | 2016-09-15 | ポール ヴルス エス.エイ.Paul Wurth S.A. | 粒化設備に用いるスチーム凝縮システム |
TWI658142B (zh) * | 2018-04-26 | 2019-05-01 | 中國鋼鐵股份有限公司 | Converter flue gas treatment system |
CN109821312A (zh) * | 2019-03-20 | 2019-05-31 | 浙江迈纳新材料有限公司 | 一种用于高镍三元材料厂废水与尾气再利用处理方法 |
CN110093465A (zh) * | 2019-04-16 | 2019-08-06 | 浙江菲达环保科技股份有限公司 | 一种高炉冲渣水蒸气消白***及方法 |
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JP2006307268A (ja) * | 2005-04-27 | 2006-11-09 | Sumitomo Metal Mining Co Ltd | スラグフューミングにおけるダスト回収方法 |
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US3760446A (en) * | 1972-04-11 | 1973-09-25 | Airco Inc | Gas curtain ventilation control for open hooded ferroalloy furnace |
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2009
- 2009-11-25 US US12/625,686 patent/US20100242683A1/en not_active Abandoned
- 2009-12-31 CL CL2009002242A patent/CL2009002242A1/es unknown
-
2010
- 2010-01-19 JP JP2010009169A patent/JP5037635B2/ja active Active
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JPH08245243A (ja) * | 1995-03-08 | 1996-09-24 | Rasa Shoji Kk | 溶鉱炉溶滓の水砕システムにおける有害ガス処理方法および処理設備 |
JPH1089601A (ja) * | 1996-09-19 | 1998-04-10 | Nikko Kinzoku Kk | 廃熱ボイラーへのダスト付着防止方法及び該方法を適用した自溶炉 |
JP2000034528A (ja) * | 1998-07-14 | 2000-02-02 | Mitsui Mining & Smelting Co Ltd | スラグ水砕装置 |
JP2005289697A (ja) * | 2004-03-31 | 2005-10-20 | Nippon Mining & Metals Co Ltd | 銅スラグの製造方法 |
JP2006307268A (ja) * | 2005-04-27 | 2006-11-09 | Sumitomo Metal Mining Co Ltd | スラグフューミングにおけるダスト回収方法 |
Cited By (5)
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---|---|---|---|---|
JP2016528461A (ja) * | 2013-07-01 | 2016-09-15 | ポール ヴルス エス.エイ.Paul Wurth S.A. | 粒化設備に用いるスチーム凝縮システム |
TWI658142B (zh) * | 2018-04-26 | 2019-05-01 | 中國鋼鐵股份有限公司 | Converter flue gas treatment system |
CN109821312A (zh) * | 2019-03-20 | 2019-05-31 | 浙江迈纳新材料有限公司 | 一种用于高镍三元材料厂废水与尾气再利用处理方法 |
CN110093465A (zh) * | 2019-04-16 | 2019-08-06 | 浙江菲达环保科技股份有限公司 | 一种高炉冲渣水蒸气消白***及方法 |
CN110093465B (zh) * | 2019-04-16 | 2021-06-08 | 浙江菲达环保科技股份有限公司 | 一种高炉冲渣水蒸气消白***及方法 |
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CL2009002242A1 (es) | 2010-06-11 |
US20100242683A1 (en) | 2010-09-30 |
JP5037635B2 (ja) | 2012-10-03 |
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