GB1438999A - Blast furnace operating methods - Google Patents

Blast furnace operating methods

Info

Publication number
GB1438999A
GB1438999A GB5317873A GB5317873A GB1438999A GB 1438999 A GB1438999 A GB 1438999A GB 5317873 A GB5317873 A GB 5317873A GB 5317873 A GB5317873 A GB 5317873A GB 1438999 A GB1438999 A GB 1438999A
Authority
GB
United Kingdom
Prior art keywords
blast
hearth
gas
stack
regenerated
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.)
Expired
Application number
GB5317873A
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.)
JFE Engineering Corp
Original Assignee
Nippon Kokan Ltd
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
Priority claimed from DE2257922A external-priority patent/DE2257922C3/en
Priority claimed from DE2311466A external-priority patent/DE2311466C3/en
Application filed by Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Publication of GB1438999A publication Critical patent/GB1438999A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/06—Making pig-iron in the blast furnace using top gas in the blast furnace process
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2100/00—Handling of exhaust gases produced during the manufacture of iron or steel
    • C21B2100/20—Increasing the gas reduction potential of recycled exhaust gases
    • C21B2100/22—Increasing the gas reduction potential of recycled exhaust gases by reforming
    • 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
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2
    • 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

Abstract

1438999 Production of iron in a blast furnace NIPPON KOKAN K K and W WENZEL 16 Nov 1973 [25 Nov 1972 8 March 1973] 53178/73 Heading C7D In a blast furnace process for producing molten iron in which ore coke and flux are charged in alternate horizontal layers, molten iron and slag being tapped from the hearth, a portion of the withdrawn gas is regenerated with fossil fuel to enrich it with carbon monoxide and hydrogen and is introduced into the hearth with technically pure oxygen and a second portion provides at least part of the heat for the regeneration and preheating of agents, e.g. oil and oxygen, introduced into the hearth. The blast to the hearth is thus substantially free from nitrogen and the carbon monoxide and hydrogen provide a peak combustion temperature of about 2000‹C, and provide sufficient gases for transfer of heat up the stack. A portion of the regenerated gas may also be introduced into the stack, the blast accounting for 55-63% of the total regenerated gas introduced into the furnace. The regenerated gas may be subjected to a cycloreaction to produce two types of gas, one containing carbon particles which is added to the blast and the other, from the central region of the cyclone which is introduced into the stack.
GB5317873A 1972-11-25 1973-11-16 Blast furnace operating methods Expired GB1438999A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2257922A DE2257922C3 (en) 1972-11-25 1972-11-25 Method for operating a blast furnace with an auxiliary reducing gas produced from blast furnace gas
DE2311466A DE2311466C3 (en) 1973-03-08 1973-03-08 Process for achieving optimal fuel consumption and performance data in the blast furnace

Publications (1)

Publication Number Publication Date
GB1438999A true GB1438999A (en) 1976-06-09

Family

ID=25764144

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5317873A Expired GB1438999A (en) 1972-11-25 1973-11-16 Blast furnace operating methods

Country Status (8)

Country Link
US (1) US3884677A (en)
JP (1) JPS4979910A (en)
AT (1) AT338306B (en)
BR (1) BR7309161D0 (en)
CA (1) CA1009455A (en)
FR (1) FR2207990B1 (en)
GB (1) GB1438999A (en)
IT (1) IT1001934B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2281311A (en) * 1993-03-29 1995-03-01 Boc Group Plc Metallurgical processes and apparatus
EP2719779A1 (en) * 2012-10-12 2014-04-16 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Blast-furnace process with recycle of a CO-fraction of the blast furnace gas and production plant for same
EP2719778A1 (en) * 2012-10-12 2014-04-16 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Blast-furnace process with CO2-lean blast furnace gas recycle and production plant for same

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2710106B2 (en) * 1977-03-08 1980-08-14 Eisenwerk-Gesellschaft Maximilianshuette Mbh, 8458 Sulzbach-Rosenberg Process for the production of liquid pig iron
US4301997A (en) * 1978-06-30 1981-11-24 Southwire Company Continuous copper melting furnace
DE3024977A1 (en) * 1980-07-02 1982-01-28 Klöckner-Humboldt-Deutz AG, 5000 Köln METHOD FOR PRODUCING REACTION GAS
BE1000776A6 (en) * 1987-07-31 1989-04-04 Centre Rech Metallurgique METHOD FOR CONDUCTING A BLAST FURNACE.
US6214084B1 (en) * 1997-09-03 2001-04-10 The Boc Group, Inc. Iron manufacturing process
AT409634B (en) 2000-05-15 2002-09-25 Voest Alpine Ind Anlagen METHOD AND DEVICE FOR THE PRODUCTION OF RAW IRON OR LIQUID STEEL PRE-PRODUCTS FROM IRON-CONTAINING MATERIALS
FR2847659B1 (en) * 2002-11-25 2005-12-16 Air Liquide METHOD FOR ENERGY OPTIMIZATION OF AN INDUSTRIAL SITE, BY COMBUSTION AIR OXYGEN ENRICHMENT
JP2006315651A (en) * 2005-05-16 2006-11-24 Makoto Nozaki Truck for use on two gauges of railway vehicle
LU91493B1 (en) * 2008-10-31 2010-05-03 Wurth Paul Sa Method for operating a blast furnace and blast furnace installation
MX2011009350A (en) 2009-03-17 2011-09-27 Arcelormittal Investigacion Y Desarrollo Sl Method for recirculating blast furnace gas, and associated device.
US8557014B2 (en) * 2011-01-28 2013-10-15 Albert Calderon Method for making liquid iron and steel
JP5770124B2 (en) * 2012-03-06 2015-08-26 新日鐵住金株式会社 Blast furnace operation method
US20130344450A1 (en) * 2012-06-21 2013-12-26 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Syngas generator for blast furnace
GB2513185A (en) * 2013-04-19 2014-10-22 Siemens Vai Metals Tech Gmbh Blast furnace plant
DE102013009993A1 (en) * 2013-06-14 2014-12-18 CCP Technology GmbH Blast furnace and method for operating a blast furnace
DE102013018074B3 (en) 2013-11-28 2015-04-02 CCP Technology GmbH HIGH OVEN AND METHOD FOR OPERATING A HIGH-OPEN
ES2694753T3 (en) 2013-12-20 2018-12-27 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method of operation of a top gas blast furnace installation
JP6463626B2 (en) * 2014-12-16 2019-02-06 新日鐵住金株式会社 Blast furnace operation method
CN106702052A (en) * 2015-11-17 2017-05-24 鞍钢股份有限公司 Blast furnace top uniform-pressure gas recycling system and method
HUE057873T2 (en) * 2017-07-03 2022-06-28 Air Liquide Method for operating an iron-or steelmaking-plant
LU100453B1 (en) 2017-09-25 2019-03-29 Wurth Paul Sa Method for Producing a Synthesis Gas, in particular for use in Blast Furnace Operation

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790711A (en) * 1957-04-30 Molten
FR1093334A (en) * 1955-05-03
GB369393A (en) * 1930-03-21 1932-03-24 Linde Eismasch Ag Improvements in or relating to blast furnaces
US2837419A (en) * 1957-02-15 1958-06-03 Texaco Development Corp Reduction of metal oxides
US3151974A (en) * 1961-04-26 1964-10-06 Huttenwerk Salzgitter Ag Process for the operation of blast furnaces
FR1337277A (en) * 1962-06-14 1963-09-13 Improvements to the cast iron production process in a blast furnace
US3594154A (en) * 1967-05-20 1971-07-20 Sumitomo Metal Ind Iron making process and its arrangement thereof
FR2040708A5 (en) * 1969-04-10 1971-01-22 Fink Ferdinand Treating iron minerals in a blast furnace
JPS5232323B2 (en) * 1970-07-29 1977-08-20

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2281311A (en) * 1993-03-29 1995-03-01 Boc Group Plc Metallurgical processes and apparatus
GB2281311B (en) * 1993-03-29 1996-09-04 Boc Group Plc Metallurgical processes and apparatus
EP2719779A1 (en) * 2012-10-12 2014-04-16 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Blast-furnace process with recycle of a CO-fraction of the blast furnace gas and production plant for same
EP2719778A1 (en) * 2012-10-12 2014-04-16 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Blast-furnace process with CO2-lean blast furnace gas recycle and production plant for same

Also Published As

Publication number Publication date
CA1009455A (en) 1977-05-03
ATA986773A (en) 1976-12-15
IT1001934B (en) 1976-04-30
AU6251873A (en) 1975-05-29
FR2207990A1 (en) 1974-06-21
AT338306B (en) 1977-08-25
FR2207990B1 (en) 1977-08-12
JPS4979910A (en) 1974-08-01
US3884677A (en) 1975-05-20
BR7309161D0 (en) 1974-08-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee