WO2009017019A1 - 電気炉ダストの還元処理方法 - Google Patents
電気炉ダストの還元処理方法 Download PDFInfo
- Publication number
- WO2009017019A1 WO2009017019A1 PCT/JP2008/063257 JP2008063257W WO2009017019A1 WO 2009017019 A1 WO2009017019 A1 WO 2009017019A1 JP 2008063257 W JP2008063257 W JP 2008063257W WO 2009017019 A1 WO2009017019 A1 WO 2009017019A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- briquette
- electric furnace
- rotary hearth
- produce
- furnace dust
- Prior art date
Links
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
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/32—Presses specially adapted for particular purposes for consolidating scrap metal or for compacting used cars
- B30B9/328—Presses specially adapted for particular purposes for consolidating scrap metal or for compacting used cars for making furnace charges
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0046—Making spongy iron or liquid steel, by direct processes making metallised agglomerates or iron oxide
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/006—Starting from ores containing non ferrous metallic oxides
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0066—Preliminary conditioning of the solid carbonaceous reductant
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/10—Making spongy iron or liquid steel, by direct processes in hearth-type furnaces
- C21B13/105—Rotary hearth-type furnaces
-
- 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/242—Binding; Briquetting ; Granulating with binders
- C22B1/244—Binding; Briquetting ; Granulating with binders organic
- C22B1/245—Binding; Briquetting ; Granulating with binders organic with carbonaceous material for the production of coked agglomerates
-
- 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/248—Binding; Briquetting ; Granulating of metal scrap or alloys
-
- 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
- C22B19/28—Obtaining zinc or zinc oxide from muffle furnace residues
-
- 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
- C22B19/34—Obtaining zinc oxide
-
- 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
- C22B19/34—Obtaining zinc oxide
- C22B19/38—Obtaining zinc oxide in rotary furnaces
-
- 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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
-
- 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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/16—Dry methods smelting of sulfides or formation of mattes with volatilisation or condensation of the metal being produced
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2200/00—Recycling of non-gaseous 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
- 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
-
- 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
Abstract
この発明は、製鋼用電気炉で発生する電気炉ダストと炭材との粉状混合物を圧縮成形してブリケットとし、これを回転炉床炉で加熱還元処理する方法であって、成形後から回転炉床炉に装入するまでのハンドリングに耐えうるブリケット強度を確保するとともに、回転炉床炉内でのバースティングを防止しつつブリケットの乾燥に必要なエネルギを低減しうる方法を提供することを目的とする。この方法は、製鋼用電気炉1で発生する電気炉ダストAに、炭材BとバインダCと必要により水分とを添加し混合して、水分含有量が0.5~3質量%の粉状混合物Dとする工程と、この粉状混合物Dをブリケットマシン4で圧縮成形して生ブリケットEとした後、この生ブリケットEを、乾燥せずにそのまま回転炉床炉5に装入し、加熱還元して還元鉄ブリケットFと粗酸化亜鉛Gとを得る工程とを含む。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/670,942 US8101007B2 (en) | 2007-07-31 | 2008-07-24 | Method for reduction treatment of electric furnace dust |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007-199600 | 2007-07-31 | ||
JP2007199600 | 2007-07-31 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009017019A1 true WO2009017019A1 (ja) | 2009-02-05 |
Family
ID=40304249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/063257 WO2009017019A1 (ja) | 2007-07-31 | 2008-07-24 | 電気炉ダストの還元処理方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8101007B2 (ja) |
JP (1) | JP2009052141A (ja) |
WO (1) | WO2009017019A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011074426A (ja) * | 2009-09-29 | 2011-04-14 | Kobe Steel Ltd | ブリケットの製造方法、還元金属の製造方法、及び亜鉛若しくは鉛の分離方法 |
CN111500855A (zh) * | 2020-04-15 | 2020-08-07 | 山西太钢不锈钢股份有限公司 | 利用cdq粉制备烧结矿的方法及其制造的烧结矿 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011042870A (ja) | 2009-07-21 | 2011-03-03 | Kobe Steel Ltd | アルカリ含有製鉄ダストを原料とする還元鉄の製造装置および製造方法 |
JP6520632B2 (ja) * | 2015-10-15 | 2019-05-29 | 日本製鉄株式会社 | 回転炉床炉用原料の爆裂性評価方法 |
CN110741101A (zh) * | 2017-05-10 | 2020-01-31 | 沙特基础工业全球技术公司 | 从用于炼钢炉的混合有碳的集尘灰来制造自还原团粒/块的方法 |
DE102018216539A1 (de) * | 2018-09-27 | 2020-04-02 | Sms Group Gmbh | Verfahren zum Betreiben eines Elektrolichtbogenofens |
CN112126773B (zh) * | 2020-07-31 | 2022-08-02 | 武汉钢铁有限公司 | 一种烧结使用cdq粉的烧结方法 |
Citations (8)
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JPS55123819A (en) * | 1979-03-12 | 1980-09-24 | Shin Meiwa Ind Co Ltd | Pulverulent body discharge device in pneumatic conveyer system pulverulent body carrier |
JPS61133133A (ja) * | 1984-11-30 | 1986-06-20 | Hitachi Ltd | ブリケツテイング型造粒機の制御方法 |
JP2003129140A (ja) * | 2001-08-10 | 2003-05-08 | Nippon Steel Corp | 還元用回転炉床向け成型物の製造方法 |
JP2004035950A (ja) * | 2002-07-03 | 2004-02-05 | Nippon Steel Corp | 廃合成樹脂粉末を利用した製鉄ダストの成形方法 |
JP2004076152A (ja) * | 2002-06-18 | 2004-03-11 | Kobe Steel Ltd | ステンレス鋼製造工程廃棄物を再利用したステンレス鋼の製造方法 |
JP2005097665A (ja) * | 2003-09-24 | 2005-04-14 | Kobe Steel Ltd | 還元金属原料塊成物およびその製造方法、並びに還元金属の製造方法 |
JP2005213461A (ja) * | 2004-01-30 | 2005-08-11 | Jfe Steel Kk | コークス炉装入用石炭の製造方法 |
JP2006124765A (ja) * | 2004-10-28 | 2006-05-18 | Ntn Corp | 製鋼ダスト固形化物の製造方法および装置 |
Family Cites Families (14)
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US3278293A (en) * | 1963-08-26 | 1966-10-11 | R N Corp | Protection of briquetted metallic iron concentrates against corrosion |
JPS5760410B2 (ja) * | 1974-09-04 | 1982-12-20 | Nitsushin Seiko Kk | |
GB9523229D0 (en) * | 1995-11-14 | 1996-01-17 | Allied Dust Processing Ltd | Method of processing finely divided material incorporating metal based constituents |
JPH09209047A (ja) | 1996-02-05 | 1997-08-12 | Hiroshima Gas Kaihatsu Kk | ステンレス鋼製造工程廃棄物の再利用方法 |
US6342089B1 (en) * | 1997-09-02 | 2002-01-29 | Mcgaa John R. | Direct reduced iron pellets |
JP3040978B2 (ja) | 1997-10-30 | 2000-05-15 | 株式会社神戸製鋼所 | 還元鉄ペレットの製造方法および還元鉄ペレット |
JP3909942B2 (ja) | 1997-12-17 | 2007-04-25 | 日本電信電話株式会社 | 光増幅器 |
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US6773486B2 (en) * | 2001-08-28 | 2004-08-10 | Exothermic Distribution Corporation | Use of rice hull ash in steelmaking |
TW200403344A (en) * | 2002-06-18 | 2004-03-01 | Kobe Steel Ltd | Method of producing stainless steel by re-using waste material of stainless steel producing process |
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JP3978398B2 (ja) * | 2003-01-31 | 2007-09-19 | 株式会社神戸製鋼所 | 亜鉛含有原料からの粗酸化亜鉛の回収方法 |
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-
2008
- 2008-07-24 US US12/670,942 patent/US8101007B2/en not_active Expired - Fee Related
- 2008-07-24 WO PCT/JP2008/063257 patent/WO2009017019A1/ja active Application Filing
- 2008-07-30 JP JP2008196770A patent/JP2009052141A/ja active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS55123819A (en) * | 1979-03-12 | 1980-09-24 | Shin Meiwa Ind Co Ltd | Pulverulent body discharge device in pneumatic conveyer system pulverulent body carrier |
JPS61133133A (ja) * | 1984-11-30 | 1986-06-20 | Hitachi Ltd | ブリケツテイング型造粒機の制御方法 |
JP2003129140A (ja) * | 2001-08-10 | 2003-05-08 | Nippon Steel Corp | 還元用回転炉床向け成型物の製造方法 |
JP2004076152A (ja) * | 2002-06-18 | 2004-03-11 | Kobe Steel Ltd | ステンレス鋼製造工程廃棄物を再利用したステンレス鋼の製造方法 |
JP2004035950A (ja) * | 2002-07-03 | 2004-02-05 | Nippon Steel Corp | 廃合成樹脂粉末を利用した製鉄ダストの成形方法 |
JP2005097665A (ja) * | 2003-09-24 | 2005-04-14 | Kobe Steel Ltd | 還元金属原料塊成物およびその製造方法、並びに還元金属の製造方法 |
JP2005213461A (ja) * | 2004-01-30 | 2005-08-11 | Jfe Steel Kk | コークス炉装入用石炭の製造方法 |
JP2006124765A (ja) * | 2004-10-28 | 2006-05-18 | Ntn Corp | 製鋼ダスト固形化物の製造方法および装置 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011074426A (ja) * | 2009-09-29 | 2011-04-14 | Kobe Steel Ltd | ブリケットの製造方法、還元金属の製造方法、及び亜鉛若しくは鉛の分離方法 |
CN111500855A (zh) * | 2020-04-15 | 2020-08-07 | 山西太钢不锈钢股份有限公司 | 利用cdq粉制备烧结矿的方法及其制造的烧结矿 |
Also Published As
Publication number | Publication date |
---|---|
US20100192726A1 (en) | 2010-08-05 |
US8101007B2 (en) | 2012-01-24 |
JP2009052141A (ja) | 2009-03-12 |
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