JPS5785910A - Operating method for coal fluidized bed type direct reduction process - Google Patents

Operating method for coal fluidized bed type direct reduction process

Info

Publication number
JPS5785910A
JPS5785910A JP55161637A JP16163780A JPS5785910A JP S5785910 A JPS5785910 A JP S5785910A JP 55161637 A JP55161637 A JP 55161637A JP 16163780 A JP16163780 A JP 16163780A JP S5785910 A JPS5785910 A JP S5785910A
Authority
JP
Japan
Prior art keywords
gas
blower
furnace
coal
carbon dioxide
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
JP55161637A
Other languages
Japanese (ja)
Inventor
Yukinaga Katahashi
Makoto Shimizu
Kazuyuki Ishino
Kenji Mitsui
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.)
IHI Corp
Original Assignee
IHI 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 IHI Corp filed Critical IHI Corp
Priority to JP55161637A priority Critical patent/JPS5785910A/en
Publication of JPS5785910A publication Critical patent/JPS5785910A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2

Landscapes

  • Manufacture Of Iron (AREA)

Abstract

PURPOSE: To remove carbon dioxide and to save equipment costs by including grained coal in a circulating gas on the down stream of a circulating gas blower, and blowing this into a reduction furnace after heating in a recirculation line of a coal fluidized bed type direct reduction process.
CONSTITUTION: Iron ore A and slack B are charged into a reducing furnace 1, by which reduced iron C is obtained. The discharged gas from the furnace top is cleaned in a dust remover 3 and a scrubber 4 through a pipeline 2 and is boosted with a circulating gas blower 5. A grained coal blower 6 is provided on the down stream of this blower 5, and the grained powder D in a hopper 10 is introduced into a mixer 7 by a charging mechanism 11, and is mixed with the circulation gas. These are heated in a gas heater 8 and is blown into the furnace 1, whereby they are recirculated. By the blowing of the grained coal D in the circulation gas, carbon monoxide is modified in the gas heater 8 and carbon dioxide is removed, hence a carbon dioxide removing device is abolished or its capacity is decreased and the decrease in the rate of metallization at the reducing is prevented.
COPYRIGHT: (C)1982,JPO&Japio
JP55161637A 1980-11-17 1980-11-17 Operating method for coal fluidized bed type direct reduction process Pending JPS5785910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55161637A JPS5785910A (en) 1980-11-17 1980-11-17 Operating method for coal fluidized bed type direct reduction process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55161637A JPS5785910A (en) 1980-11-17 1980-11-17 Operating method for coal fluidized bed type direct reduction process

Publications (1)

Publication Number Publication Date
JPS5785910A true JPS5785910A (en) 1982-05-28

Family

ID=15738968

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55161637A Pending JPS5785910A (en) 1980-11-17 1980-11-17 Operating method for coal fluidized bed type direct reduction process

Country Status (1)

Country Link
JP (1) JPS5785910A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0191424A2 (en) * 1985-02-14 1986-08-20 Yoshida Kogyo K.K. Socket element assembly for snap fasteners
US7814624B2 (en) 2007-01-23 2010-10-19 Ykk Corporation Self draining snap fastener sockets

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0191424A2 (en) * 1985-02-14 1986-08-20 Yoshida Kogyo K.K. Socket element assembly for snap fasteners
EP0191424A3 (en) * 1985-02-14 1987-03-25 Yoshida Kogyo K.K. Socket element assembly for snap fasteners
US4698881A (en) * 1985-02-14 1987-10-13 Yoshida Kogyo K. K. Socket element assembly for snap fasteners
US7814624B2 (en) 2007-01-23 2010-10-19 Ykk Corporation Self draining snap fastener sockets

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