KR940014820A - Blast furnace back pressure method - Google Patents
Blast furnace back pressure method Download PDFInfo
- 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
- Authority
- KR
- South Korea
- Prior art keywords
- valve
- back pressure
- pressure
- raw material
- blast furnace
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
Landscapes
- 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
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920026533A KR940010768B1 (en) | 1992-12-30 | 1992-12-30 | Control method of shaft furnace pressure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019920026533A KR940010768B1 (en) | 1992-12-30 | 1992-12-30 | Control method of shaft furnace pressure |
Publications (2)
Publication Number | Publication Date |
---|---|
KR940014820A true KR940014820A (en) | 1994-07-19 |
KR940010768B1 KR940010768B1 (en) | 1994-11-11 |
Family
ID=19347680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019920026533A KR940010768B1 (en) | 1992-12-30 | 1992-12-30 | Control method of shaft furnace pressure |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR940010768B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100605524B1 (en) * | 1999-11-30 | 2006-07-28 | 주식회사 포스코 | Direct pressure equalizing method of hopper using in blast furnace rising gas |
KR100792741B1 (en) * | 2001-07-06 | 2008-01-08 | 주식회사 포스코 | Furnace top bunker with multi-step charging function |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100952744B1 (en) * | 2007-12-28 | 2010-04-13 | 주식회사 포스코 | Emergency pressure exhaust apparatus of hopper and method of pressure exhaust and resident pressure exhaust |
-
1992
- 1992-12-30 KR KR1019920026533A patent/KR940010768B1/en not_active IP Right Cessation
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100605524B1 (en) * | 1999-11-30 | 2006-07-28 | 주식회사 포스코 | Direct pressure equalizing method of hopper using in blast furnace rising gas |
KR100792741B1 (en) * | 2001-07-06 | 2008-01-08 | 주식회사 포스코 | Furnace top bunker with multi-step charging function |
Also Published As
Publication number | Publication date |
---|---|
KR940010768B1 (en) | 1994-11-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB967074A (en) | Process and apparatus for the production of zinc by the reduction of zinc oxides in a multiple-retort furnace | |
MY118750A (en) | Piping leakage detecting apparatus | |
DE69225138D1 (en) | Regenerative ashing furnace | |
EP0302446A3 (en) | Gas control apparatus | |
KR940014820A (en) | Blast furnace back pressure method | |
CA2083276A1 (en) | Valve apparatus | |
US2516190A (en) | Apparatus for charging blast furnaces | |
GB2017219A (en) | Gas Turbine Plant | |
DE69730467D1 (en) | Process and structure for charging flammable and oxidizing gas and material so charged | |
JPS56104992A (en) | Preventing method for evolution of black smoke from coke oven | |
JPS5646180A (en) | Pilot valve | |
JPS5675503A (en) | Pressure equalizing method of blast furnace top pressure equalizing chamber | |
JPS5765591A (en) | Method for opening and closing valves for hot air furnace for melting furnace | |
JPS58161715A (en) | Method for releasing pressure from top charging hopper of blast furnace | |
JPS5594064A (en) | Double seal valve mechanism | |
JPS5495905A (en) | Preventing method for valve vibration of hot stove | |
JPS5629602A (en) | Control of top pressure of blast furnace | |
JPS5480206A (en) | Gas treating apparatus of blast furnaces | |
JPS5540206A (en) | Exhaust gas recycling device in engine | |
JPS5735603A (en) | Method for controlling differential pressure between bells of blast furnace | |
GB688921A (en) | Improvements in and relating to cut-off valves for high pressure gases | |
JPS5633321A (en) | Chute-opening, -closing device for dust air transportation line | |
JPS57206760A (en) | Fuel control system of prime mover | |
JPS5260334A (en) | Exhaust gas reflux control system | |
JPS5625911A (en) | Controlling method of top pressure of blast furnace |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
G160 | Decision to publish patent application | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 19991028 Year of fee payment: 6 |
|
LAPS | Lapse due to unpaid annual fee |