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FR2436822A1 - PROCESS FOR REDUCING METAL OXIDES OPERATING WITH A SOLID REDUCER IN ROCK OVENS, WITH GAS CIRCULATION OF HORNS WITH PARTIAL OR TOTAL EQUICURENT RELATIVE TO THE FLOW OF THE LOAD, AND INSTALLATION FOR THE IMPLEMENTATION WORK OF THIS PROCESS - Google Patents

PROCESS FOR REDUCING METAL OXIDES OPERATING WITH A SOLID REDUCER IN ROCK OVENS, WITH GAS CIRCULATION OF HORNS WITH PARTIAL OR TOTAL EQUICURENT RELATIVE TO THE FLOW OF THE LOAD, AND INSTALLATION FOR THE IMPLEMENTATION WORK OF THIS PROCESS

Info

Publication number
FR2436822A1
FR2436822A1 FR7923350A FR7923350A FR2436822A1 FR 2436822 A1 FR2436822 A1 FR 2436822A1 FR 7923350 A FR7923350 A FR 7923350A FR 7923350 A FR7923350 A FR 7923350A FR 2436822 A1 FR2436822 A1 FR 2436822A1
Authority
FR
France
Prior art keywords
load
equicurent
horns
ovens
rock
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.)
Granted
Application number
FR7923350A
Other languages
French (fr)
Other versions
FR2436822B3 (en
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.)
Danieli and C Officine Meccaniche SpA
Original Assignee
Danieli and C Officine Meccaniche SpA
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 Danieli and C Officine Meccaniche SpA filed Critical Danieli and C Officine Meccaniche SpA
Publication of FR2436822A1 publication Critical patent/FR2436822A1/en
Application granted granted Critical
Publication of FR2436822B3 publication Critical patent/FR2436822B3/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/02—Making spongy iron or liquid steel, by direct processes in shaft furnaces
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/04—Making spongy iron or liquid steel, by direct processes in retorts
    • 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
    • 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
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Muffle Furnaces And Rotary Kilns (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)

Abstract

L'INVENTION SE RAPPORTE A L'ELABORATION DES METAUX A PARTIR DE LEURS OXYDES, NOTAMMENT DES MINERAIS. DANS UN FOUR F CONTENANT UNE OU PLUSIEURS CORNUES S CHAUFFEES PAR DES BRULEURS 29, 30 ET 31, ON FAIT CIRCULER LES GAZ ET VAPEURS ISSUS DU CHAUFFAGE DE LA CHARGE ET DE LA REACTION ENTRE LE REDUCTION ET L'OXYDE A EQUICOURANT PAR RAPPORT A LA CHARGE. LA CHARGE EST INTRODUITE DANS LA CORNUE S A L'AIDE DE CHAMBRES ETANCHES 22, 24, 26 MUNIES DE VANNES 23, 25. LA CORNUE EST ELLE-MEME ETANCHE ET LA CHARGE REDUITE EST EVACUEE AU BAS DE LA CORNUE A TRAVERS DES VANNES ETANCHES 35 ET 37. LES GAZ ENGENDRES SONT OBLIGES DE REFLUER VERS LE BAS, DANS LE MEME SENS QUE LA CHARGE ET ILS S'ECHAPPENT PAR UN CONDUIT 20. L'INVENTION S'APPLIQUE NOTAMMENT A LA REDUCTION DES OXYDES DE FER, PRESENTES SOUS LA FORME DE MINERAIS OU D'AGGLOMERES.THE INVENTION RELATES TO THE PREPARATION OF METALS FROM THEIR OXIDES, IN PARTICULAR ORES. IN AN OVEN F CONTAINING ONE OR MORE CORNUES S HEATED BY BURNERS 29, 30 AND 31, GAS AND VAPORS ARE CIRCULATED FROM THE HEATING OF THE LOAD AND FROM THE REACTION BETWEEN THE REDUCTION AND THE OXIDE A EQUICOURANT IN RELATION TO THE CHARGE. THE LOAD IS INTRODUCED INTO THE CORNUE SA USING WATERTIGHT CHAMBERS 22, 24, 26 EQUIPPED WITH VALVES 23, 25. THE CORN IS ITSELF WATERPROOF AND THE REDUCED LOAD IS EVACUATED AT THE BOTTOM OF THE CORNUE THROUGH SEALED VALVES 35 AND 37. THE GASES GENERATED ARE OBLIGED TO BOW DOWN IN THE SAME DIRECTION AS THE LOAD AND THEY ESCAP THROUGH A DUCT 20. THE INVENTION APPLIES IN PARTICULAR TO THE REDUCTION OF IRON OXIDES, IN THE FORM OF ORES OR AGGLOMERS.

FR7923350A 1978-09-19 1979-09-19 PROCESS FOR REDUCING METAL OXIDES OPERATING WITH A SOLID REDUCER IN ROCK OVENS, WITH GAS CIRCULATION OF HORNS WITH PARTIAL OR TOTAL EQUICURENT RELATIVE TO THE FLOW OF THE LOAD, AND INSTALLATION FOR THE IMPLEMENTATION WORK OF THIS PROCESS Granted FR2436822A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT6915378A IT1109109B (en) 1978-09-19 1978-09-19 Reducing metal oxide pellets - by feeding them down retort with solid reductant to produce gases flowing in co-current with charge and removing them from base

Publications (2)

Publication Number Publication Date
FR2436822A1 true FR2436822A1 (en) 1980-04-18
FR2436822B3 FR2436822B3 (en) 1981-06-26

Family

ID=11311452

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7923350A Granted FR2436822A1 (en) 1978-09-19 1979-09-19 PROCESS FOR REDUCING METAL OXIDES OPERATING WITH A SOLID REDUCER IN ROCK OVENS, WITH GAS CIRCULATION OF HORNS WITH PARTIAL OR TOTAL EQUICURENT RELATIVE TO THE FLOW OF THE LOAD, AND INSTALLATION FOR THE IMPLEMENTATION WORK OF THIS PROCESS

Country Status (9)

Country Link
AU (1) AU5034079A (en)
DD (1) DD146190A5 (en)
DE (1) DE2935466A1 (en)
ES (1) ES484139A1 (en)
FR (1) FR2436822A1 (en)
GB (1) GB2034755A (en)
IT (1) IT1109109B (en)
SE (1) SE7906778L (en)
ZA (1) ZA794281B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046146A1 (en) * 1980-08-08 1982-02-17 VOEST-ALPINE Aktiengesellschaft Use of a muffle furnace for the dezincification of oxidic ferriferous materials containing zinc

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT367798B (en) * 1980-08-08 1982-07-26 Voest Alpine Ag METHOD FOR DIRECTLY REDUCING IRON CARRIERS AND DEVICE FOR IMPLEMENTING THE METHOD
MX162727A (en) * 1984-03-15 1991-06-20 Hylsa Sa IMPROVED METHOD AND APPARATUS FOR PRODUCING IRON WITH A SPONGE-LIKE STRUCTURE FROM IRON OXIDE PARTICLES
CN115029494B (en) * 2022-06-21 2023-12-12 首钢集团有限公司 Reaction tank, hydrogen reduction system and hydrogen reduction method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046146A1 (en) * 1980-08-08 1982-02-17 VOEST-ALPINE Aktiengesellschaft Use of a muffle furnace for the dezincification of oxidic ferriferous materials containing zinc

Also Published As

Publication number Publication date
DE2935466A1 (en) 1980-04-24
IT1109109B (en) 1985-12-16
GB2034755A (en) 1980-06-11
DD146190A5 (en) 1981-01-28
SE7906778L (en) 1980-03-20
ES484139A1 (en) 1980-10-01
IT7869153A0 (en) 1978-09-13
AU5034079A (en) 1980-03-27
ZA794281B (en) 1980-10-29
FR2436822B3 (en) 1981-06-26

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