GB1071352A - Improvements relating to smelting furnace assemblies and the method of operating them - Google Patents

Improvements relating to smelting furnace assemblies and the method of operating them

Info

Publication number
GB1071352A
GB1071352A GB30791/64A GB3079164A GB1071352A GB 1071352 A GB1071352 A GB 1071352A GB 30791/64 A GB30791/64 A GB 30791/64A GB 3079164 A GB3079164 A GB 3079164A GB 1071352 A GB1071352 A GB 1071352A
Authority
GB
United Kingdom
Prior art keywords
flue
furnace
tanks
burner
preheated
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
GB30791/64A
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.)
RHEINISCHE STAHLWERKE AG
Original Assignee
RHEINISCHE STAHLWERKE AG
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 RHEINISCHE STAHLWERKE AG filed Critical RHEINISCHE STAHLWERKE AG
Publication of GB1071352A publication Critical patent/GB1071352A/en
Expired legal-status Critical Current

Links

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
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/38—Removal of waste gases or 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
    • C21C5/04—Manufacture of hearth-furnace steel, e.g. Siemens-Martin steel
    • 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
    • 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
    • C21C5/56—Manufacture of steel by other methods
    • C21C5/562—Manufacture of steel by other methods starting from scrap
    • C21C5/565—Preheating of scrap
    • 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)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Manufacture Of Iron (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

<PICT:1071352/C6-C7/1> The flue gases from a melting furnace, heated by the combustion of fuel in technically pure oxygen, are passed to a tank or tanks to preheat the raw material for the next charge, contained therein. The fuel together with an insufficient quantity of a 95% oxygen composition for complete combustion is fed via burner 2 to tiltable furnace 1, the exhaust gases produced passing through a Y' branched, refractory lined open ended flue 3 into tapered tubular tanks 4, having an inlet to outlet area ratio of between 5 to 1 and 2 to 1 to preheat the raw material for the next charge. Additional preheated oxygen-enriched air is provided before the tanks 4 to complete combustion of the fuel. On completion of the melting of the charge, burner 2 and flue 3, now covered by end covers 11 to prevent cooling, are withdrawn, the furnace 1 tapped and the preheated burden skip charged from the tanks 4 by crane lifts 12, 13 to the furnace. Burner 2 and flue 3 are then replaced and a new tank 4 containing a fresh charge to be preheated inserted between flue 3 and abutment 17 leading to the exhaust system through bellows 18 which take up any expansion. During the tapping and charging the Y flue 3 may be repaired by spraying. In a second embodiment Fig.4 (not shown) a furnace fitted with a swivelable cover plate which may be removed as well as the burner and flue, or a cover plate secured to the flue to be removed with it to facilitate charging is disclosed. In this latter case the furnace may be mounted on wheels. A pressure gauge is mounted in the flue 3, the signal from which is used to control the induced draught to within \sB3 mins w.g. of a desired value.
GB30791/64A 1963-07-24 1964-08-04 Improvements relating to smelting furnace assemblies and the method of operating them Expired GB1071352A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER35756A DE1273550B (en) 1963-07-24 1963-07-24 A container arranged in the exhaust gas flow of a chamberless steel melting furnace for preheating the furnace charge

Publications (1)

Publication Number Publication Date
GB1071352A true GB1071352A (en) 1967-06-07

Family

ID=7404700

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30791/64A Expired GB1071352A (en) 1963-07-24 1964-08-04 Improvements relating to smelting furnace assemblies and the method of operating them

Country Status (4)

Country Link
BE (1) BE648957A (en)
DE (1) DE1273550B (en)
GB (1) GB1071352A (en)
LU (1) LU46337A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4445849A (en) * 1981-05-25 1984-05-01 Swiss Aluminium Ltd. Device for thermal treatment of scrap
DE3120717C2 (en) * 1981-05-25 1983-06-30 Schweizerische Aluminium AG, 3965 Chippis Device for the heat treatment of scrap

Family Cites Families (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE460525C (en) * 1928-05-30 Eisen Und Stahlwerk Hoesch Akt Device for utilizing the converter exhaust gases
DE401482C (en) * 1924-09-05 Franz Kofler Dipl Ing Device for preheating the lime in the Thomas factory
DE156615C (en) *
DE482276C (en) * 1929-09-12 Berg & Co Ges Fuer Ind Ofenbau Furnace for preheating scrap metal and other solid materials for melting furnaces, especially Siemens-Martin furnaces
FR339768A (en) * 1904-01-21 1904-06-18 Walter Shupe Rockwell Rotating oven
GB141132A (en) * 1919-01-08 1920-04-08 Ebenezer Waring Improvements in open hearth furnaces
GB147244A (en) * 1919-02-07 1920-07-07 Ebenezer Waring Improvements in or relating to steel melting plant
DE358612C (en) * 1919-12-09 1922-09-13 Ludwig Silbereisen Process for recycling waste heat from converters
US1724455A (en) * 1924-12-12 1929-08-13 George R Metcalf Furnace
FR590683A (en) * 1924-12-23 1925-06-20 Eisen & Stahlwerk Hoesch Ag Direct steel production process
FR887556A (en) * 1939-06-15 1943-11-17 Steel melting furnace with recuperator, in particular with metal recuperator, and method of operating the furnace
FR903058A (en) * 1943-03-31 1945-09-24 Hu Ttengesellschaft Lohse Lind Method and apparatus for refining and subsequent processing of steel
CH255156A (en) * 1947-03-05 1948-06-15 Von Roll Ag Process for refining pig iron.
DE837706C (en) * 1948-10-02 1952-05-02 Hoerder Huettenunion Ag Wind refining of pig iron
DE824799C (en) * 1949-12-28 1951-12-13 Kurt Von Luede Dr Ing Converter operation
DE935845C (en) * 1951-05-26 1955-12-01 Hans Von Dr-Ing Hofe Process and device for refining ores
AT184585B (en) * 1953-04-30 1956-02-10 Waagner Biro Ag Process and device for utilizing short-term waste heat
GB744935A (en) * 1953-07-15 1956-02-15 Hutten Und Stahlverfahren Mit Method of and apparatus for the continuous production of purified iron from pig-iron
US2818247A (en) * 1953-08-14 1957-12-31 Charles B Francis Steel making apparatus
DE1020355B (en) * 1954-03-06 1957-12-05 Thyssen Huette Ag Device for removing dust from converters
FR1138829A (en) * 1954-10-08 1957-06-20 Oesterr Alpine Montan Process for the use and purification of gases given off by refining cast iron baths or other iron baths containing carbon
FR1122831A (en) * 1955-02-11 1956-09-13 Huetten Und Stahlverfahren M B Process and plant for the continuous production of steel from pig iron
DE1000412B (en) * 1955-03-03 1957-01-10 Demag Ag Converter to which the fresh agent is fed from above
FR1149364A (en) * 1955-05-10 1957-12-24 Hoerder Huettenunion Ag Steel making process
GB830173A (en) * 1955-05-10 1960-03-09 Hoerder Huettenunion Ag Process for refining steel
US2847206A (en) * 1955-06-20 1958-08-12 Pennsylvania Engineering Corp Exhaust apparatus
FR1170421A (en) * 1956-04-25 1959-01-14 Schmidt Sche Heissdampf Device for enhancing the sensible heat of the gases escaping from the converters
FR1192492A (en) * 1957-12-30 1959-10-27 Method and apparatus for converting cast iron to steel
FR76795E (en) * 1959-12-22 1961-12-01 Siderurgie Fse Inst Rech Process for cooling and removing hot gases from pneumatic refining of cast irons, in particular using pure oxygen
FR1227303A (en) * 1959-02-16 1960-08-19 Heurtey & Cie Process for recovering products expelled from metal baths and equipment allowing the implementation of such a process
FR1228461A (en) * 1959-04-17 1960-08-31 Yawata Seitetsu Kabushiki Kais Metals refining process and furnaces used
GB895534A (en) * 1960-02-06 1962-05-02 Meredith Woodridge Thring Improvements in electric-arc steel furnaces
NL261045A (en) * 1960-02-17
FR1272664A (en) * 1960-10-04 1961-09-29 Air Prod Inc Metallurgical process and apparatus
FR1194873A (en) * 1960-12-22 1959-11-13 Soc Produits Azotes Sa Process and installations for removing dust from fumes emitted by electrometallurgical furnaces
FR1279816A (en) * 1961-02-02 1961-12-22 Von Roll Ag Device for the evacuation of fumes in electric ovens
FR1288264A (en) * 1961-02-21 1962-03-24 Beteiligungs & Patentverw Gmbh Process and device for the withdrawal and combustion or chemical enhancement of gas from converters, in particular during the refining of pig iron with oxygen
FR1301230A (en) * 1961-09-21 1962-08-10 Richard Thomas & Baldwins Ltd Improvements in steel production
FR1307666A (en) * 1961-12-07 1962-10-26 Consett Iron Company Ltd Metallurgical method and apparatus more particularly intended for heating materials to be charged in a furnace
FR1312160A (en) * 1961-12-19 1962-12-14 Calderon Automation Inc Improved process and equipment for steelmaking

Also Published As

Publication number Publication date
DE1273550B (en) 1968-07-25
BE648957A (en) 1964-10-01
LU46337A1 (en) 1972-01-01

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