GB1439488A - Process of heat-treating magnetite iron ore involving heat recuperation from cooling of the product - Google Patents

Process of heat-treating magnetite iron ore involving heat recuperation from cooling of the product

Info

Publication number
GB1439488A
GB1439488A GB4548273A GB4548273A GB1439488A GB 1439488 A GB1439488 A GB 1439488A GB 4548273 A GB4548273 A GB 4548273A GB 4548273 A GB4548273 A GB 4548273A GB 1439488 A GB1439488 A GB 1439488A
Authority
GB
United Kingdom
Prior art keywords
cooler
pellets
heat
zones
cooling
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
GB4548273A
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.)
Allis Chalmers Corp
Original Assignee
Allis Chalmers Corp
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 Allis Chalmers Corp filed Critical Allis Chalmers Corp
Publication of GB1439488A publication Critical patent/GB1439488A/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
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating
    • C22B1/2413—Binding; Briquetting ; Granulating enduration of pellets
    • 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

Abstract

1439488 Heat treatment of magnetite ores ALLIS-CHALMERS CORP 28 Sept 1973 [4 Oct 1972] 45482/73 Heading C1A Hand discrete pellets are produced from "green" pellets of finely divided magnetite ore by transporting on a travelling grate through at least drying and pre-burning stages so that 60- 80% Fe 3 O 4 is oxidized to Fe 2 O 3 , tumbling in a rotating kiln fitted with a fuel burner (gas stream at 2100-2450‹ F.) so that a further 2-10% Fe 2 O 4 is oxidized, discharging the pellets (at approx. 2400‹ F.) to a cooler divided into zones, air being provided in the first and second cooler zones to complete the oxidation of the Fe 3 O 4 , heated air from the first cooler zone being used in the kiln and then in the pre-burner and drier, heated air at 600-700‹ F. from the second cooler zone being used in the drier. The pellets may be transported through the cooler on a second travelling grate. The drying zone may be subdivided into two zones and air from the second cooler at 600-700‹ F. used in either or both.
GB4548273A 1972-10-04 1973-09-28 Process of heat-treating magnetite iron ore involving heat recuperation from cooling of the product Expired GB1439488A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29486472A 1972-10-04 1972-10-04

Publications (1)

Publication Number Publication Date
GB1439488A true GB1439488A (en) 1976-06-16

Family

ID=23135273

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4548273A Expired GB1439488A (en) 1972-10-04 1973-09-28 Process of heat-treating magnetite iron ore involving heat recuperation from cooling of the product

Country Status (16)

Country Link
JP (1) JPS5320922B2 (en)
AR (1) AR198326A1 (en)
AU (1) AU6089673A (en)
BR (1) BR7307728D0 (en)
CA (1) CA977974A (en)
ES (1) ES419352A1 (en)
FR (1) FR2202161B1 (en)
GB (1) GB1439488A (en)
IN (1) IN138849B (en)
IT (1) IT996254B (en)
NO (1) NO134875C (en)
OA (1) OA04484A (en)
SE (1) SE396406B (en)
SU (1) SU494872A3 (en)
TR (1) TR17520A (en)
ZA (1) ZA737752B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0602880A1 (en) * 1992-12-18 1994-06-22 Mark Cross Treatment of iron ore
US5437707A (en) * 1994-04-28 1995-08-01 Cross; Mark Apparatus for treating iron ore
RU2459878C2 (en) * 2008-03-27 2012-08-27 Кабусики Кайся Кобе Сейко Се Method of producing iron ore pellets
CN102828022A (en) * 2012-09-11 2012-12-19 新兴能源装备股份有限公司 Production process of pure hematite alkaline pellets
EP3667221A1 (en) * 2018-12-11 2020-06-17 Paul Wurth S.A. Induration machine
SE2250973A1 (en) * 2022-08-17 2024-02-18 Luossavaara Kiirunavaara Ab Method and apparatus for producing a metal oxide material

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101592443B (en) * 2009-06-26 2014-04-09 江苏大学 Waste heat internal and external circulation comprehensive recycling method and hot air flow system of pellet production equipment

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0602880A1 (en) * 1992-12-18 1994-06-22 Mark Cross Treatment of iron ore
US5437707A (en) * 1994-04-28 1995-08-01 Cross; Mark Apparatus for treating iron ore
RU2459878C2 (en) * 2008-03-27 2012-08-27 Кабусики Кайся Кобе Сейко Се Method of producing iron ore pellets
CN102828022A (en) * 2012-09-11 2012-12-19 新兴能源装备股份有限公司 Production process of pure hematite alkaline pellets
EP3667221A1 (en) * 2018-12-11 2020-06-17 Paul Wurth S.A. Induration machine
WO2020120318A1 (en) * 2018-12-11 2020-06-18 Paul Wurth S.A. Induration machine
CN113227695A (en) * 2018-12-11 2021-08-06 保尔伍斯股份有限公司 Sintering machine
CN113227695B (en) * 2018-12-11 2023-08-29 保尔伍斯股份有限公司 Sintering Machine
SE2250973A1 (en) * 2022-08-17 2024-02-18 Luossavaara Kiirunavaara Ab Method and apparatus for producing a metal oxide material

Also Published As

Publication number Publication date
AU6089673A (en) 1975-04-10
OA04484A (en) 1980-03-15
NO134875B (en) 1976-09-20
IT996254B (en) 1975-12-10
TR17520A (en) 1975-07-23
AR198326A1 (en) 1974-06-14
AU472174B2 (en) 1976-05-20
ES419352A1 (en) 1976-03-01
JPS5320922B2 (en) 1978-06-29
BR7307728D0 (en) 1974-08-15
CA977974A (en) 1975-11-18
DE2349933B2 (en) 1976-12-16
ZA737752B (en) 1975-05-28
NO134875C (en) 1977-10-25
FR2202161B1 (en) 1976-05-14
IN138849B (en) 1976-04-03
SE396406B (en) 1977-09-19
DE2349933A1 (en) 1974-04-18
SU494872A3 (en) 1975-12-05
JPS4972112A (en) 1974-07-12
FR2202161A1 (en) 1974-05-03

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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