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SE9303237L - Method for hard-burning iron oxide-containing pellet sheets - Google Patents

Method for hard-burning iron oxide-containing pellet sheets

Info

Publication number
SE9303237L
SE9303237L SE9303237A SE9303237A SE9303237L SE 9303237 L SE9303237 L SE 9303237L SE 9303237 A SE9303237 A SE 9303237A SE 9303237 A SE9303237 A SE 9303237A SE 9303237 L SE9303237 L SE 9303237L
Authority
SE
Sweden
Prior art keywords
section
cooling
exhaust gas
line
drying section
Prior art date
Application number
SE9303237A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9303237D0 (en
Inventor
Friedrich Ritter
Rolf-Peter Dadazynski
Original Assignee
Metallgesellschaft 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 Metallgesellschaft Ag filed Critical Metallgesellschaft Ag
Publication of SE9303237D0 publication Critical patent/SE9303237D0/en
Publication of SE9303237L publication Critical patent/SE9303237L/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B23/00—Heating arrangements
    • F26B23/001—Heating arrangements using waste heat
    • F26B23/007—Heating arrangements using waste heat recovered from the dried product
    • 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
    • C22B1/16—Sintering; Agglomerating
    • C22B1/20—Sintering; Agglomerating in sintering machines with movable grates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
    • F27B21/02—Sintering grates or tables
    • 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
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

Pellets contg. iron oxide are baked hard by flow of hot gases through the pellet bed, with subsequent cooling by means of cooling gases. The method includes the following characteristic features: (a) cooling air is introduced into the rear of the cooling section (K) through the line (1); (b) a part of the heated cooling gas extracted via the line (2b) is mixed with a part of the exhaust gas arriving from the thermal treatment section via the line (4); (c) the resulting mixture is supplied to the drying section (D) via the line (2a); (d) the exhaust gas from the drying section is mixed with exhaust gas from the thermal treatment section via the lines (6, 7) and supplied to the front of the cooling section via the line (5a); (e) the exhaust gas from the front of the cooling section is directed into the thermal treatment section; (f) a part of the exhaust gas exiting the thermal treatment section is supplied to the suction drying section after the pressure drying section and into the heating zone; and (g) the exhaust gas of the pellet combustion machine are removed from the suction drying section or the suction drying section and at least the beginning of the heating zone. USE/ADVANTAGE - For pelletisation of iron ores. The process is carried out with low heat consumption, with economical removal of harmful constituents from the exhaust gases.
SE9303237A 1992-10-09 1993-10-04 Method for hard-burning iron oxide-containing pellet sheets SE9303237L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4234085A DE4234085A1 (en) 1992-10-09 1992-10-09 Hard-baking of pellets containing iron oxide - with successive utilisation of exhaust heat of the process

Publications (2)

Publication Number Publication Date
SE9303237D0 SE9303237D0 (en) 1993-10-04
SE9303237L true SE9303237L (en) 1994-04-10

Family

ID=6470090

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9303237A SE9303237L (en) 1992-10-09 1993-10-04 Method for hard-burning iron oxide-containing pellet sheets

Country Status (4)

Country Link
BR (1) BR9304154A (en)
DE (1) DE4234085A1 (en)
NL (1) NL9301631A (en)
SE (1) SE9303237L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19513549B4 (en) * 1995-04-10 2005-03-03 Siemens Ag pelletizing plant
JP4227710B2 (en) * 1999-09-17 2009-02-18 三菱重工業株式会社 Reduced iron production equipment
AT503199B1 (en) 2006-01-19 2008-02-15 Voest Alpine Ind Anlagen METHOD FOR SINTERING ON A SINTERING MACHINE
KR101696328B1 (en) * 2015-10-23 2017-01-13 주식회사 포스코 Apparatus for raw material process, method thereof and pellet
WO2019174714A1 (en) 2018-03-12 2019-09-19 Outotec (Finland) Oy Process and plant for energy efficient thermal treatment of bulk material
CN113061717A (en) * 2021-03-29 2021-07-02 北京卡卢金热风炉技术有限公司 A roasting system and method for producing oxidized pellets
CN116412665B (en) * 2023-04-14 2025-12-05 北京中宏联工程技术有限公司 A belt roaster that utilizes hot air in stages and cooling phases

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES284703A1 (en) * 1962-02-12 1963-07-01 Metallgesellschaft Ag A procedure for the hard calcination of mineral pills, cement and similar raw materials (Machine-translation by Google Translate, not legally binding)
DE1209580B (en) * 1964-10-17 1966-01-27 Metallgesellschaft Ag Method and device for carrying out endothermic processes on traveling grids
NL6514618A (en) * 1965-11-10 1967-05-11
US3973762A (en) * 1974-05-17 1976-08-10 Dravo Corporation Sintering process and apparatus
AT352408B (en) * 1978-03-24 1979-09-25 Voest Ag METHOD OF BURNING PELLETS ON A WALKING GRATE
IN150952B (en) * 1979-12-08 1983-01-29 Metallgesellschaft Ag
AT366100B (en) * 1980-01-23 1982-03-10 Voest Alpine Ag METHOD AND DEVICE FOR BURNING PELLETS
JPS602597B2 (en) * 1982-05-18 1985-01-22 住友重機械工業株式会社 Exhaust gas circulation sintering equipment
DE3433043A1 (en) * 1984-09-08 1986-03-20 Metallgesellschaft Ag, 6000 Frankfurt METHOD FOR THE THERMAL TREATMENT OF STACKED OR AGGLOMERED MATERIALS ON A WALKING GRID
DE3843929A1 (en) * 1988-12-24 1990-07-05 Metallgesellschaft Ag METHOD FOR REDUCING THE EMISSION OF SOX IN THE EXHAUST GAS FROM SINTERING PLANTS

Also Published As

Publication number Publication date
NL9301631A (en) 1994-05-02
DE4234085A1 (en) 1994-04-14
SE9303237D0 (en) 1993-10-04
BR9304154A (en) 1994-05-17

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