JPS5562129A - Removing method for sox in exhaust gas in reduced pellet manufacturing process - Google Patents

Removing method for sox in exhaust gas in reduced pellet manufacturing process

Info

Publication number
JPS5562129A
JPS5562129A JP13447278A JP13447278A JPS5562129A JP S5562129 A JPS5562129 A JP S5562129A JP 13447278 A JP13447278 A JP 13447278A JP 13447278 A JP13447278 A JP 13447278A JP S5562129 A JPS5562129 A JP S5562129A
Authority
JP
Japan
Prior art keywords
exhaust gas
grate
pellets
sox
calcined
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.)
Pending
Application number
JP13447278A
Other languages
Japanese (ja)
Inventor
Yojiro Yamaoka
Masanori Nagano
Masaharu Ito
Kazuharu Yatsunami
Ryoji Yamamoto
Katsuaki Shiobara
Yutaka Nakamura
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.)
KOKAN KOGYO KK
Kokan Mining Co Ltd
JFE Engineering Corp
Original Assignee
KOKAN KOGYO KK
Kokan Mining Co Ltd
NKK Corp
Nippon Kokan Ltd
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 KOKAN KOGYO KK, Kokan Mining Co Ltd, NKK Corp, Nippon Kokan Ltd filed Critical KOKAN KOGYO KK
Priority to JP13447278A priority Critical patent/JPS5562129A/en
Priority to AU51396/79A priority patent/AU520581B2/en
Priority to CA000337936A priority patent/CA1135060A/en
Priority to FR7926077A priority patent/FR2440223A1/en
Priority to DE2944216A priority patent/DE2944216C2/en
Publication of JPS5562129A publication Critical patent/JPS5562129A/en
Pending 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
    • C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary furnaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • 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
    • C22B1/11—Removing sulfur, phosphorus or arsenic other than by roasting
    • 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

PURPOSE: To efficiently remove SOx in rotary kiln exhaust gas without requiring special equipment, etc. by charging raw pellets based on iron-contg. dust, fine iron ore, or the like and coarse granules of a desulfurizing material such as calcined lime or calcined dolomite onto a continuously moving grate and by contacting them to the exhaust gas.
CONSTITUTION: Raw pellets based on iron-contg. dust, fine iron ore, or the like and 5W25mm coarse granules of calcined lime or calcined dolomite are charged into continuously moving grate 1 such as preheater or traveling grate. On the other hand, exhaust gas from rotary kiln 5 is fed into grate 1, where it is catalytically reacted with the pellets to absorption-remove SOx in the gas. The desulfurizing material may be mixed with the pellets, yet it is more effective to spread the material all over grate 1 to a fixed thickness and charging the pellets onto the material.
COPYRIGHT: (C)1980,JPO&Japio
JP13447278A 1978-11-02 1978-11-02 Removing method for sox in exhaust gas in reduced pellet manufacturing process Pending JPS5562129A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP13447278A JPS5562129A (en) 1978-11-02 1978-11-02 Removing method for sox in exhaust gas in reduced pellet manufacturing process
AU51396/79A AU520581B2 (en) 1978-11-02 1979-10-03 Removing so2 from exhaust gas during production of iron pellets
CA000337936A CA1135060A (en) 1978-11-02 1979-10-18 Method for removing sulfur oxides from hot exhaust gases produced during manufacture of reduced iron pellets
FR7926077A FR2440223A1 (en) 1978-11-02 1979-10-19 Removing sulphur oxide(s) from hot waste gas - obtd. in mfg. reduced iron pellets from dust produced in iron and steel works and contg. large amt. of sulphur
DE2944216A DE2944216C2 (en) 1978-11-02 1979-11-02 Process for removing sulfur oxides from the hot exhaust gases in the manufacture of reduced iron pellets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13447278A JPS5562129A (en) 1978-11-02 1978-11-02 Removing method for sox in exhaust gas in reduced pellet manufacturing process

Publications (1)

Publication Number Publication Date
JPS5562129A true JPS5562129A (en) 1980-05-10

Family

ID=15129110

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13447278A Pending JPS5562129A (en) 1978-11-02 1978-11-02 Removing method for sox in exhaust gas in reduced pellet manufacturing process

Country Status (5)

Country Link
JP (1) JPS5562129A (en)
AU (1) AU520581B2 (en)
CA (1) CA1135060A (en)
DE (1) DE2944216C2 (en)
FR (1) FR2440223A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112023656A (en) * 2020-08-26 2020-12-04 山东国舜建设集团有限公司 Semi-flue gas SNCR + SCR denitration system and process of pellet non-heating heat exchange device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5076838A (en) * 1989-07-14 1991-12-31 Svedala Industries, Inc. Process for direct reduction of materials in a kiln
US5100314A (en) * 1989-07-14 1992-03-31 Svedala Industries, Inc. Apparatus and process for direct reduction of materials in a kiln
BE1009989A3 (en) * 1995-07-10 1997-11-04 Centre Rech Metallurgique Sulphur elimination method from iron ore agglomeration fumes
CN110420558A (en) * 2019-08-27 2019-11-08 东方电气集团东方锅炉股份有限公司 A kind of denitrating system for grate-kiln pelletizing equipment
CN110975497B (en) * 2019-12-25 2021-09-03 中冶京诚工程技术有限公司 Method for eliminating white matter of blast furnace slag bottom filtering system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5319531A (en) * 1976-08-05 1978-02-22 Matsushita Electric Ind Co Ltd Method of producing lead battery positive plate lattice

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE937277C (en) * 1953-01-03 1955-12-29 Metallgesellschaft Ag Method and device for treating solid substances with hot gases on suction devices
US3166403A (en) * 1960-02-24 1965-01-19 Inland Steel Co Sintering process
GB933353A (en) * 1960-12-08 1963-08-08 Consett Iron Company Ltd Improved metallurgical apparatus
DE1936530A1 (en) * 1969-07-18 1971-01-28 Metallgesellschaft Ag Thermally treating iron oxide-containing ore - on travelling grates
JPS5540093B2 (en) * 1973-12-17 1980-10-15

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5319531A (en) * 1976-08-05 1978-02-22 Matsushita Electric Ind Co Ltd Method of producing lead battery positive plate lattice

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112023656A (en) * 2020-08-26 2020-12-04 山东国舜建设集团有限公司 Semi-flue gas SNCR + SCR denitration system and process of pellet non-heating heat exchange device
CN112023656B (en) * 2020-08-26 2021-03-30 山东国舜建设集团有限公司 Semi-flue gas SNCR + SCR denitration system and process of pellet non-heating heat exchange device

Also Published As

Publication number Publication date
DE2944216C2 (en) 1983-04-07
FR2440223A1 (en) 1980-05-30
AU5139679A (en) 1980-05-22
DE2944216A1 (en) 1980-05-14
CA1135060A (en) 1982-11-09
AU520581B2 (en) 1982-02-11
FR2440223B1 (en) 1985-02-08

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