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JPS5448607A - Treatment of sintering machine exhaust gas - Google Patents

Treatment of sintering machine exhaust gas

Info

Publication number
JPS5448607A
JPS5448607A JP11470877A JP11470877A JPS5448607A JP S5448607 A JPS5448607 A JP S5448607A JP 11470877 A JP11470877 A JP 11470877A JP 11470877 A JP11470877 A JP 11470877A JP S5448607 A JPS5448607 A JP S5448607A
Authority
JP
Japan
Prior art keywords
exhaust gas
gas
front part
rear part
air
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
JP11470877A
Other languages
Japanese (ja)
Inventor
Hideyuki Yoshikoshi
Tsutomu Fukushima
Osamu Komatsu
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.)
JFE Engineering Corp
Original Assignee
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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP11470877A priority Critical patent/JPS5448607A/en
Priority to DE19782841629 priority patent/DE2841629A1/en
Priority to NL7809760A priority patent/NL7809760A/en
Publication of JPS5448607A publication Critical patent/JPS5448607A/en
Pending legal-status Critical Current

Links

Classifications

    • Y02W30/54—

Landscapes

  • Manufacture And Refinement Of Metals (AREA)

Abstract

PURPOSE: To reduce the desulfurization and denitrification cost by dividing the air- intake system of DL sintering machine into the front part and rear part and then by recycling the exhaust gas from the rear part after heat-exchanging with the exhaust gas from the front part which was already desulfurized for lowering its temperature.
CONSTITUTION: The air-intake system of the window box 12 of the DL sintering machine 11 is divided into approx. 2/3 (the front part) of grate and 1/3 (rear part) of grate. The fresh air is supplied into the front part, and in the rear part, the intaken air from the window box 12 is discharged through the conduit 18' by means of the blower 14. The exhaust gas is introduced to the heat exchanger 19 to lower its temperature and then discharged to the outside through the conduit 13 and the dust remover 14' for partial purification. Instead, fresh air 10 is partly supplied to this gas and the mixed gas is recycled from the cover 15 to the rear part. On the other hand, the intaken gas from the front part is treated in the dust remover 23 and the desulfurization apparatus 21 after passing through the conduit 18. Then, the gas is discharged to the outside after heat-exchanging by the heat exchanger 19 and passing through the denitrification apparatus 22. Thus, the total amount of exhaust gas is reduced to approx. 1/2, treating cost for SOx and NOx emissions is reduced, and the denitrification efficiency is raised.
COPYRIGHT: (C)1979,JPO&Japio
JP11470877A 1977-09-26 1977-09-26 Treatment of sintering machine exhaust gas Pending JPS5448607A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP11470877A JPS5448607A (en) 1977-09-26 1977-09-26 Treatment of sintering machine exhaust gas
DE19782841629 DE2841629A1 (en) 1977-09-26 1978-09-25 Dwight-Lloyd sintering furnace - has two systems of inlet and exhaust systems
NL7809760A NL7809760A (en) 1977-09-26 1978-09-26 PROCEDURE FOR TREATING EXHAUST GAS FROM A SINTER MACHINE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11470877A JPS5448607A (en) 1977-09-26 1977-09-26 Treatment of sintering machine exhaust gas

Publications (1)

Publication Number Publication Date
JPS5448607A true JPS5448607A (en) 1979-04-17

Family

ID=14644626

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11470877A Pending JPS5448607A (en) 1977-09-26 1977-09-26 Treatment of sintering machine exhaust gas

Country Status (1)

Country Link
JP (1) JPS5448607A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100368554B1 (en) * 1998-06-09 2003-03-29 주식회사 포스코 Simultaneous Reduction of Sulfur Oxide and Low Temperature Differentiation Index in Iron Ore Sintering Industry
JP2007270202A (en) * 2006-03-30 2007-10-18 Kobe Steel Ltd Method and equipment for sintering operation by exhaust gas circulation method
CN103499216A (en) * 2013-09-26 2014-01-08 中南大学 Iron mine sintering flue gas segmented circulation method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100368554B1 (en) * 1998-06-09 2003-03-29 주식회사 포스코 Simultaneous Reduction of Sulfur Oxide and Low Temperature Differentiation Index in Iron Ore Sintering Industry
JP2007270202A (en) * 2006-03-30 2007-10-18 Kobe Steel Ltd Method and equipment for sintering operation by exhaust gas circulation method
CN103499216A (en) * 2013-09-26 2014-01-08 中南大学 Iron mine sintering flue gas segmented circulation method

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