GB981231A - Apparatus for reducing fine particle size materials - Google Patents

Apparatus for reducing fine particle size materials

Info

Publication number
GB981231A
GB981231A GB20667/62A GB2066762A GB981231A GB 981231 A GB981231 A GB 981231A GB 20667/62 A GB20667/62 A GB 20667/62A GB 2066762 A GB2066762 A GB 2066762A GB 981231 A GB981231 A GB 981231A
Authority
GB
United Kingdom
Prior art keywords
conduit
riser
cyclone
venturi
combustion chamber
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
GB20667/62A
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.)
W S MOORE CO
Original Assignee
W S MOORE CO
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 W S MOORE CO filed Critical W S MOORE CO
Publication of GB981231A publication Critical patent/GB981231A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • 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
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/02—Roasting processes
    • C22B1/10—Roasting processes in fluidised form
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

981,231. Heat treating granular materials. W. S. MOORE CO. May 29, 1962 [May 31, 1961], No. 20667/62. Heading F4B. Apparatus for reducing low-grade granular iron ore to magnetite comprises riser conduits 10 and 11, respectively, associated with lower Venturis 23 and 24 and upper cyclone separators 13 and 19 and a connecting conduit 28, a combustion chamber 12 supplying partially burnt hot gases, and a gas re-circulation duct 17 connecting the separator 13 to the Venturi 24 which has an inlet conduit 26 for the charge material. The latter is preheated in riser 11, separated out by cyclone 19, fed by conduit 28 to the Venturi 23, roasted and reduced in riser 10, and separated out in cyclone 13 for discharge through conduit 14. Fig. 3 shows the complete layout for a multi-stage system including preheating and roasting conduits 38 and 46, respectively, bunker 29, dry mill 31, air classifier 32, storage hopper 37, combustion chamber 48, cooler 54 for discharged material, magnetic separators 56 and pelletizing apparatus 57. Specification 979,979 is referred to.
GB20667/62A 1961-05-31 1962-05-29 Apparatus for reducing fine particle size materials Expired GB981231A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US113854A US3241824A (en) 1961-05-31 1961-05-31 Apparatus for treating small particle size materials

Publications (1)

Publication Number Publication Date
GB981231A true GB981231A (en) 1965-01-20

Family

ID=22351918

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20667/62A Expired GB981231A (en) 1961-05-31 1962-05-29 Apparatus for reducing fine particle size materials

Country Status (4)

Country Link
US (1) US3241824A (en)
BE (1) BE618400A (en)
GB (1) GB981231A (en)
SE (1) SE303144B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998049352A1 (en) * 1997-04-30 1998-11-05 Metallgesellschaft Aktiengesellschaft Method for thermal treatment of granulated iron ore before reduction

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348941A (en) * 1964-09-15 1967-10-24 Northern Natural Gas Co Pressure balancing method
AU2013334500C1 (en) * 2012-10-26 2019-03-07 Vale S.A. Iron ore concentration process with grinding circuit, dry desliming and dry or mixed (dry and wet) concentration

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE17212E (en) * 1929-02-12 Mokinley stockton
US1310455A (en) * 1919-07-22 Tjrlyn c
US2274789A (en) * 1939-07-27 1942-03-03 Corn Prod Refining Co Production of dextrine
US2343780A (en) * 1941-08-01 1944-03-07 Standard Oil Dev Co Reaction between solids and gases
US2559551A (en) * 1946-06-20 1951-07-03 Trenton Chemical Company Production of dry gluten
US2683077A (en) * 1952-06-12 1954-07-06 Standard Oil Dev Co Roasting sulfide ores
GB775356A (en) * 1953-01-07 1957-05-22 Heinz Behrens A process and device for the calcining of raw clay to chamotte
US2757921A (en) * 1953-07-10 1956-08-07 Smidth & Co As F L Method for burning of materials with heat recovery
US2821471A (en) * 1956-12-19 1958-01-28 Texaco Development Corp Process for reduction of iron ore
US3031293A (en) * 1959-01-08 1962-04-24 Little Inc A Iron ore reduction process in a fluidized bed

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998049352A1 (en) * 1997-04-30 1998-11-05 Metallgesellschaft Aktiengesellschaft Method for thermal treatment of granulated iron ore before reduction
US6352572B1 (en) 1997-04-30 2002-03-05 Metallgesellschaft Ag Process for the thermal treatment of granulated iron ore prior to the reduction

Also Published As

Publication number Publication date
US3241824A (en) 1966-03-22
BE618400A (en) 1962-10-01
SE303144B (en) 1968-08-19

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