WO2003008651A1 - Steel making material recycling system - Google Patents

Steel making material recycling system Download PDF

Info

Publication number
WO2003008651A1
WO2003008651A1 PCT/US2002/023205 US0223205W WO03008651A1 WO 2003008651 A1 WO2003008651 A1 WO 2003008651A1 US 0223205 W US0223205 W US 0223205W WO 03008651 A1 WO03008651 A1 WO 03008651A1
Authority
WO
WIPO (PCT)
Prior art keywords
pcm
steel
processing material
dried
steel processing
Prior art date
Application number
PCT/US2002/023205
Other languages
English (en)
French (fr)
Inventor
Scott B. Kimmel
Willard K. Mcclintock
Original Assignee
Kimmel's Coal And Recycling, Inc/Ghent Operation
Gallatin Steel Company
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 Kimmel's Coal And Recycling, Inc/Ghent Operation, Gallatin Steel Company filed Critical Kimmel's Coal And Recycling, Inc/Ghent Operation
Priority to CA 2459112 priority Critical patent/CA2459112A1/en
Priority to EP20020750224 priority patent/EP2002023A1/en
Priority to MXPA04001602A priority patent/MXPA04001602A/es
Publication of WO2003008651A1 publication Critical patent/WO2003008651A1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • 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
    • 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
    • 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
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/076—Use of slags or fluxes as treating agents
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies

Definitions

  • the invention relates to steel processing materials.
  • the steel processing materials comprise a dried post combustion material (PCM) and a slag foaming material.
  • Scale as generated from steel processing, such as caster scale or mill scale, may be treated similarly. However, since such scale may have a higher concentration of iron oxide content, the concentration of scale to slag foaming material may be adjusted. Also, scale is typically high in moisture content. High moisture content scale may be dried as described above with respect to the PCM. That is, the scale may be dried, for example, by a rotary dryer or screw auger dryer to about 2% by weight or less water content. Further, the scale may be screened before and after drying as needed to reach the previously discussed particle sizes. Upon injection, the scale contained in the modified slag foaming material and the high temperature slag could possibly become exothermic because the Fe 3 O 5 will be oxidized to Fe O 3 .
  • Additional embodiments of the current invention are directed to methods of manufacturing steel.
  • a first heat of steel is melted.
  • a slag foaming material may also be added to the heat.
  • a liquid steel portion and a foamy slag portion are developed.
  • the melting of the heat evolves both some of the steel and the foamy slag as furnace exhaust materials.
  • the furnace exhaust materials may be exhausted toward a bag house.
  • Some of the materials (PCM) may be too heavy or large or may be washed away from the exhaust by a water stream and may not be exhausted to the bag house.
  • a drop out box is typically provided to accumulate these materials.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Processing Of Solid Wastes (AREA)
  • Manufacture And Refinement Of Metals (AREA)
PCT/US2002/023205 2001-07-20 2002-07-20 Steel making material recycling system WO2003008651A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA 2459112 CA2459112A1 (en) 2001-07-20 2002-07-20 Steel making material recycling system
EP20020750224 EP2002023A1 (en) 2001-07-20 2002-07-20 Steel making material recycling system
MXPA04001602A MXPA04001602A (es) 2001-07-20 2002-07-20 Sistema de recirculacion de material de elaboracion de acero.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/909,487 2001-07-20
US09/909,487 US20030015063A1 (en) 2001-07-20 2001-07-20 Steel making material recycling system

Publications (1)

Publication Number Publication Date
WO2003008651A1 true WO2003008651A1 (en) 2003-01-30

Family

ID=25427307

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/023205 WO2003008651A1 (en) 2001-07-20 2002-07-20 Steel making material recycling system

Country Status (5)

Country Link
US (2) US20030015063A1 (es)
EP (1) EP2002023A1 (es)
CA (1) CA2459112A1 (es)
MX (1) MXPA04001602A (es)
WO (1) WO2003008651A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070266824A1 (en) * 2006-05-19 2007-11-22 Stein Joseph L Using a slag conditioner to beneficiate bag house dust from a steel making furnace
JP5737323B2 (ja) 2013-05-01 2015-06-17 住友電気工業株式会社 電気絶縁ケーブル
CN110964876A (zh) * 2018-09-29 2020-04-07 新疆八一钢铁股份有限公司 一种尾坯降低转炉合金消耗的方法
US20200199696A1 (en) * 2018-12-21 2020-06-25 Hickman, Williams & Company Foamy slag conditioner compound

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4304609A (en) * 1980-02-28 1981-12-08 Morris James B N Drill cuttings treatment apparatus and method
US5364441A (en) * 1990-02-13 1994-11-15 Illawarra Technology Corporation Limited Cotreatment of sewage and steelworks wastes
US5853453A (en) * 1995-04-24 1998-12-29 Voest-Alpine Industrieanlagenbau Gmbh Method of processing iron-containing mettalurgical residual substances as well as arrangement for carrying out said method
US6214085B1 (en) * 1999-02-01 2001-04-10 Calderon Energy Company Of Bowling Green, Inc. Method for direct steelmaking

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3772000A (en) * 1971-11-23 1973-11-13 Columbia Gas Syst Method for converting solid ferrous metal to steel
JPS5328003A (en) * 1976-08-27 1978-03-15 Gamou Hideaki Dezincing method and mechanism for iron manufacture dust recovery process
US4119455A (en) * 1977-09-28 1978-10-10 Carad, Inc. Method of recovering iron-bearing by-product flue dust
US4304598A (en) * 1980-09-19 1981-12-08 Klockner-Werke Ag Method for producing steel from solid, iron containing pieces
US5218617A (en) * 1990-06-01 1993-06-08 Hylsa S.A. De C.V. Apparatus for feeding iron-bearing materials to metallurgical furnaces
US5496392A (en) * 1990-12-21 1996-03-05 Enviroscience Method of recycling industrial waste
US5186742A (en) * 1991-11-27 1993-02-16 Chemical Lime Company Method and composition for use in recycling metal containing furnace dust
US5855645A (en) * 1992-01-15 1999-01-05 Metals Recycling Technologies Corp. Production of more concentrated iron product from industrial waste materials streams
US5571306A (en) * 1992-01-15 1996-11-05 Metals Recycling Technologies Corp. Method for producing an enriched iron feedstock from industrial furnace waste streams
AT402939B (de) * 1992-07-16 1997-09-25 Voest Alpine Ind Anlagen Verfahren und anlage zum herstellen einer metallschmelze
DE4303751C1 (de) * 1993-02-09 1994-09-08 Intracon Sarl Verfahren zur Wiederverwertung von Filterstäuben
AT400245B (de) * 1993-12-10 1995-11-27 Voest Alpine Ind Anlagen Verfahren und anlage zum herstellen einer eisenschmelze
US5738694A (en) * 1994-01-21 1998-04-14 Covol Technologies, Inc. Process for recovering iron from iron-containing material
US5425797A (en) * 1994-02-23 1995-06-20 Uni Superkom Blended charge for steel production
US5599375A (en) * 1994-08-29 1997-02-04 American Combustion, Inc. Method for electric steelmaking
US5714113A (en) * 1994-08-29 1998-02-03 American Combustion, Inc. Apparatus for electric steelmaking
US5700308A (en) * 1995-01-20 1997-12-23 Massachusetts Institute Of Technology Method for enhancing reaction rates in metals refining extraction, and recycling operations involving melts containing ionic species such as slags, mattes, fluxes
KR100210649B1 (ko) * 1996-04-01 1999-07-15 야마오카 요지로 더스트로부터 산화아연을 회수하는 방법 및 그 장치
GB2324081A (en) * 1997-04-07 1998-10-14 Heckett Multiserv Plc Additives for Electric Arc Furnace
AT405054B (de) * 1997-06-18 1999-05-25 Voest Alpine Ind Anlagen Verfahren und anlage zum herstellen einer eisenschmelze unter einsatz von eisenhältigen hüttenwerksreststoffen
US6024912A (en) * 1997-11-27 2000-02-15 Empco (Canada) Ltd. Apparatus and process system for preheating of steel scrap for melting metallurgical furnaces with concurrent flow of scrap and heating gases

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4304609A (en) * 1980-02-28 1981-12-08 Morris James B N Drill cuttings treatment apparatus and method
US5364441A (en) * 1990-02-13 1994-11-15 Illawarra Technology Corporation Limited Cotreatment of sewage and steelworks wastes
US5853453A (en) * 1995-04-24 1998-12-29 Voest-Alpine Industrieanlagenbau Gmbh Method of processing iron-containing mettalurgical residual substances as well as arrangement for carrying out said method
US6214085B1 (en) * 1999-02-01 2001-04-10 Calderon Energy Company Of Bowling Green, Inc. Method for direct steelmaking

Also Published As

Publication number Publication date
US20030015063A1 (en) 2003-01-23
MXPA04001602A (es) 2005-03-07
EP2002023A1 (en) 2008-12-17
CA2459112A1 (en) 2003-01-30
US20070256516A1 (en) 2007-11-08

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