GB522098A - Improvements relating to the reduction of ores - Google Patents

Improvements relating to the reduction of ores

Info

Publication number
GB522098A
GB522098A GB29008/38A GB2900838A GB522098A GB 522098 A GB522098 A GB 522098A GB 29008/38 A GB29008/38 A GB 29008/38A GB 2900838 A GB2900838 A GB 2900838A GB 522098 A GB522098 A GB 522098A
Authority
GB
United Kingdom
Prior art keywords
ore
gases
fuel
upwardly
reducing
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
GB29008/38A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB522098A publication Critical patent/GB522098A/en
Expired 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
    • C21B13/0033—In fluidised bed furnaces or apparatus containing a dispersion of the material
    • 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

Abstract

522,098. Reducing ores. HODSON, F., and HIRSCH, P. A. Oct. 6, 1938, No. 29008. Convention date, Oct. 6, 1937. [Class 51 (ii)] Finely divided ores to be reduced are introduced into an upwardly flowing column of reducing-gases the velocity of which is regulated so as to cause the ore to be carried upwardly and maintained in, suspension until it is reduced to metal, while the temperature of the gases is kept sufficiently low to avoid fusion. The ore may be mixed with a finely-divided reducing agent such as coal dust, or it may be introduced as a colloidal suspension in oil, and the upwardly flowing gases are preferably caused to rotate or whirl as they move upwards, e.g., by injecting the air and fuel non-radiailly. The particles of ore when completely or sufficiently reduced settle out of the upwardly flowing stream owing to their increased specific gravity. A furnace for carrying out the process consists 'of concentric shafts 14, 16 into the inner of which fuel and air are delivered through angularly-adjustable nozzles 24, and ore, reducing agents and fuel through, nozzles 26, either above the fuel nozzles as shown, or below them. Alternatively the ore &c. may be dropped into the upwardly moving gases from the top of the shaft. A depending exhaust flue 20 for waste gases extends downwards to below the upper edge 22 of the shaft 14 and in operation some of the particles of ore will pass over the edge 22 and be deposited in the annular space between the shafts, while the remainder will collect at the bottom of the inner shaft. Other forms of furnace described consist of single cylindrical or truncated conical shafts with depending exhaust flues.
GB29008/38A 1937-10-06 1938-10-06 Improvements relating to the reduction of ores Expired GB522098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US522098XA 1937-10-06 1937-10-06

Publications (1)

Publication Number Publication Date
GB522098A true GB522098A (en) 1940-06-10

Family

ID=21976116

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29008/38A Expired GB522098A (en) 1937-10-06 1938-10-06 Improvements relating to the reduction of ores

Country Status (1)

Country Link
GB (1) GB522098A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK156676B (en) * 1977-09-27 1989-09-18 Trw Inc METHOD AND APPARATUS FOR COMBUSTION OF CARBON CONTAINING FUEL IN FLIGHT
GB2259564A (en) * 1991-09-13 1993-03-17 Stein Atkinson Strody Ltd Metal processing or recovery
EP0596107A4 (en) * 1990-12-27 1993-06-11 Kawasaki Steel Co Fluidized bed preliminary reducing furnace for raw material comprising oxide.
BE1006250A3 (en) * 1991-09-17 1994-07-05 Air Liquide Process gas injection and fuel additives in four metal fusion and melting furnace.
WO2001053544A1 (en) * 2000-01-20 2001-07-26 Voest-Alpine Industrieanlagenbau Gmbh & Co Fluidized bed aggregate for reducing oxide-containing material

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK156676B (en) * 1977-09-27 1989-09-18 Trw Inc METHOD AND APPARATUS FOR COMBUSTION OF CARBON CONTAINING FUEL IN FLIGHT
EP0596107A4 (en) * 1990-12-27 1993-06-11 Kawasaki Steel Co Fluidized bed preliminary reducing furnace for raw material comprising oxide.
EP0596107A1 (en) * 1990-12-27 1994-05-11 Kawasaki Steel Corporation Fluidized bed preliminary reducing furnace for raw material comprising oxide
GB2259564A (en) * 1991-09-13 1993-03-17 Stein Atkinson Strody Ltd Metal processing or recovery
GB2259564B (en) * 1991-09-13 1995-11-22 Stein Atkinson Strody Ltd Metal processing or recovery
BE1006250A3 (en) * 1991-09-17 1994-07-05 Air Liquide Process gas injection and fuel additives in four metal fusion and melting furnace.
WO2001053544A1 (en) * 2000-01-20 2001-07-26 Voest-Alpine Industrieanlagenbau Gmbh & Co Fluidized bed aggregate for reducing oxide-containing material

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