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KR940014820A - Blast furnace back pressure method - Google Patents

Blast furnace back pressure method Download PDF

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Publication number
KR940014820A
KR940014820A KR1019920026533A KR920026533A KR940014820A KR 940014820 A KR940014820 A KR 940014820A KR 1019920026533 A KR1019920026533 A KR 1019920026533A KR 920026533 A KR920026533 A KR 920026533A KR 940014820 A KR940014820 A KR 940014820A
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KR
South Korea
Prior art keywords
valve
back pressure
pressure
raw material
blast furnace
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KR1019920026533A
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Korean (ko)
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KR940010768B1 (en
Inventor
안영규
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박득표
포항종합제철 주식회사
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Priority to KR1019920026533A priority Critical patent/KR940010768B1/en
Publication of KR940014820A publication Critical patent/KR940014820A/en
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Publication of KR940010768B1 publication Critical patent/KR940010768B1/en
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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)

Abstract

본 발명은 고로노정설비에서 상부호퍼의 원료를 원활히 수입하기 위한 방법에 관련한다.The present invention relates to a method for smoothly importing the raw material of the upper hopper in the blast furnace plant.

기존의 경우에는 정상조업중의 배압모드에서 하부실밸브와 1,2차 균압밸브의 가스누설에 따라 하부호퍼의 압력이 높아져 상부호퍼로 부터의 원료수입 흐름이 원활하지 못하였기 때문에 조업중단이 빈번하였다.In the conventional case, the operation of the lower hopper was increased due to the leakage of gas from the lower seal valve and the first and second equalization valves in the back pressure mode during normal operation. It was.

원료수입 타이먼인 제1카운터(27)의 스타트와 함께 가스회수밸브(12)를 열어 하부호퍼(5)의 압력을 4000mmAq로 배압한 후 이젝터 드라이브 밸브(14)를 열어 완전히 배압시키고, 하부호퍼(5)의 압력이 1000mmAq 일 때 가스 회수밸브(12)는 닫고 압력방출밸브(11)를 열어 하부실밸브(7) 및 1,2차 균압밸브(9,10)에 의한 누설가스압력을 대기중으로 방출시킴으로써 상부호퍼(5)로 수입되는 원료의 흐름을 원활하게 유지시키고 있다.With the start of the first counter 27, which is a raw material import tyman, open the gas recovery valve 12 to back pressure the lower hopper 5 to 4000 mmAq, open the ejector drive valve 14 to fully back pressure, and When the pressure of (5) is 1000 mmAq, the gas recovery valve 12 is closed and the pressure relief valve 11 is opened to wait for the leakage gas pressure by the lower chamber valve 7 and the first and second equalization valves 9 and 10. By discharging to the inside, the flow of the raw material imported into the upper hopper 5 is maintained smoothly.

Description

고로노정배압방법Blast furnace back pressure method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 고로장입장치의 개략도,1 is a schematic view of the blast furnace charging device,

제2도는 본 발명의 실행을 위한 하드웨어구성도,2 is a hardware diagram for implementing the present invention,

제5도는 본 발명에 따른 압력방출 및 가스회수모드의 제어타임스케줄.5 is a control time schedule of the pressure release and gas recovery mode according to the present invention.

Claims (1)

고로노정 장입설비의 원료수입을 위한 배압모드에 있어서, 원료수입 타이먼인 제1카운터(27)의 스타트와 함께 가스회수밸브(12)를 열어 하부호퍼(5)의 압력을 4000mmAq로 배압한 후 이젝터 드라이브 밸브(14)를 열어 완전히 배압시키고, 하부호퍼(5)의 압력이 1000mmAq 일 때 가스 회수밸브(12)는 닫고 압력방출밸브(11)를 열어 하부실밸브(7) 및 1,2차 균압밸브(9,10)에 의한 누설가스압력을 대기중으로 방출시킴으로써 상부 호퍼(2)에서 상부호퍼(5)로 수입되는 원료의 흐름을 원활화시키는 것을 특징으로 하는 고로노정배압방법.In the back pressure mode for the raw material import of the blast furnace charging facility, the gas recovery valve 12 is opened together with the start of the first counter 27, which is a raw material import tyman, to back pressure the lower hopper 5 to 4000 mmAq. Open the ejector drive valve 14 to fully back pressure, and when the pressure of the lower hopper 5 is 1000 mmAq, the gas recovery valve 12 is closed and the pressure relief valve 11 is opened to open the lower chamber valve 7 and the primary and secondary valves. Blast furnace back pressure back pressure method characterized in that to smooth the flow of the raw material imported from the upper hopper (2) to the upper hopper (5) by releasing the leakage gas pressure by the equalization valve (9,10) into the atmosphere. ※참고사항:최초출원 내용에 의하여 공개하는 것임.※ Note: This is to be disclosed based on the first application.
KR1019920026533A 1992-12-30 1992-12-30 Blast furnace back pressure method Expired - Fee Related KR940010768B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019920026533A KR940010768B1 (en) 1992-12-30 1992-12-30 Blast furnace back pressure method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019920026533A KR940010768B1 (en) 1992-12-30 1992-12-30 Blast furnace back pressure method

Publications (2)

Publication Number Publication Date
KR940014820A true KR940014820A (en) 1994-07-19
KR940010768B1 KR940010768B1 (en) 1994-11-11

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ID=19347680

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920026533A Expired - Fee Related KR940010768B1 (en) 1992-12-30 1992-12-30 Blast furnace back pressure method

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100605524B1 (en) * 1999-11-30 2006-07-28 주식회사 포스코 Direct Equalization Method of Charged Hopper Using Furnace Rising Gas
KR100792741B1 (en) * 2001-07-06 2008-01-08 주식회사 포스코 Top bunker in furnace with multi-stage charging

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100952744B1 (en) * 2007-12-28 2010-04-13 주식회사 포스코 Emergency back pressure device of the top hopper, emergency back pressure method and residual pressure removal method using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100605524B1 (en) * 1999-11-30 2006-07-28 주식회사 포스코 Direct Equalization Method of Charged Hopper Using Furnace Rising Gas
KR100792741B1 (en) * 2001-07-06 2008-01-08 주식회사 포스코 Top bunker in furnace with multi-stage charging

Also Published As

Publication number Publication date
KR940010768B1 (en) 1994-11-11

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