CN102181593A - Method for judging damage of blast furnace tuyere small sleeve - Google Patents
Method for judging damage of blast furnace tuyere small sleeve Download PDFInfo
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- CN102181593A CN102181593A CN 201110126702 CN201110126702A CN102181593A CN 102181593 A CN102181593 A CN 102181593A CN 201110126702 CN201110126702 CN 201110126702 CN 201110126702 A CN201110126702 A CN 201110126702A CN 102181593 A CN102181593 A CN 102181593A
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- tuyere small
- small sleeve
- blast furnace
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- judging
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Abstract
The invention discloses a method for judging a damage of a blast furnace tuyere small sleeve. The method is characterized by comprising the following steps of: 1, arranging a liquid flow display on a water return pipeline in a position 2 to 2.5 meters far away from the tuyere small sleeve; 2, gradually turning down a certain water inlet valve in an open state to control the water flow of the water inlet valve at 320 to 640L/min, performing water quantity control stage by stage, observing the conditions of bubbles and water flow in the liquid flow display when the water flow is 580L/min, 520L/min and 480L/min, and judging that the tuyere is damaged if continuous bubbles are generated. The method is simple and easily mastered, and can be used for quickly judging whether the blast furnace tuyere small sleeve is damaged and reducing the phenomena of missed detection and error judgment.
Description
Technical field
The present invention relates to a kind of method of judging the tuyere small sleeve breakage, especially can judge small tuyere small sleeve breakage.
Background technology
The little cover of ironmaking tuyere of blast furnace is the key equipment of supply air system, and tuyere small sleeve is at the internal work of blast furnace, and the judgement after it damages is difficulty comparatively, especially super-huge blast furnace.From disclosed data, be to monitor mostly according to temperature, flow etc., find to damage, perhaps take comparatively complex apparatus to carry out last judgement.Though detection meanss such as various instrument are arranged, but damage the back or tuyere small sleeve with suspicion all needs the on-the-spot net result of confirming at it, and this judgement is because pipeline is long, caliber is bigger, very difficult from the water-break observation phenomenon of tuyere small sleeve, use duration, speed is slow, even potential life, danger that equipment is bigger.
Summary of the invention
Break in order to carry out the tuyere small sleeve that damaged sign is arranged accurately, to judge fast, overcoming omission and judge by accident, extraneous information accurately is provided for the blast furnace operating person, the invention provides a kind of method of judging the blast furnace tuyere small sleeve breakage.
The present invention includes following steps:
1, liquid stream indicating meter is installed on the water-break pipeline of 2～2.5 meters of distance tuyere small sleeves;
2, progressively turn down some inlet valves of the state that is in out, make the discharge of this inlet valve be controlled at 320～640L/Min, carry out water yield control stage by stage, wherein when discharge is 580L/Min, 520L/Min, 480L/Min, observe liquid stream display interior bubble and streamflow regime, as produce bubble continuously, can judge the air port damage.
The inventive method is simple, easily grasps, and can judge fast whether the little cover of ironmaking tuyere of blast furnace damages, and reduces the disconnected phenomenon of omission and erroneous judgement.
Embodiment:
Embodiment: present embodiment is at the ironmaking 5# of Shanxi Taigang Stainless Steel Co., Ltd blast furnace (4350m
3) test.
In this example, the water supply valve of water supply line is 1#, 2# valve, and the water inlet bypath valve is the 3# valve, and the water-break valve is 4# valve, 5# valve, and the water-break bypath valve is the 6# valve, and advance and retreat water bypath valve is the 7# valve, and sewage draining valve is the 8# valve.
Valve state during the tuyere small sleeve normal water supply is: the state that 1#, 2#, 4#, 5# all are in out, valve 3#, 6#, 7#, 8# are in closing condition.
Liquid stream indicating meter is installed on the water-break pipeline of 2～2.5 meters of distance tuyere small sleeves;
Progressively turn down the 2# valve, the water yield is controlled at 320～640L/Min, carry out water yield control stage by stage, observing discharge respectively when being 580L/Min, 520L/Min, 480L/Min, liquid stream display interior bubble and streamflow regime, many and successive as producing bubble, can judge the air port damage, as there being discontinuous bubble to produce once in a while, can judge that then tuyere small sleeve does not damage.
Claims (1)
1. a method of judging the blast furnace tuyere small sleeve breakage is characterized in that comprising the steps:
(1), liquid stream indicating meter is installed on the water-break pipeline of 2～2.5 meters of distance tuyere small sleeves;
(2), progressively turn down some inlet valves of the state that is in out, make the discharge of this inlet valve be controlled at 320～640L/Min, carry out water yield control stage by stage, wherein when discharge is 580L/Min, 520L/Min, 480L/Min, observe liquid stream display interior bubble and streamflow regime, as produce bubble continuously, can judge the air port damage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101267020A CN102181593B (en) | 2011-05-17 | 2011-05-17 | Method for judging damage of blast furnace tuyere small sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101267020A CN102181593B (en) | 2011-05-17 | 2011-05-17 | Method for judging damage of blast furnace tuyere small sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102181593A true CN102181593A (en) | 2011-09-14 |
| CN102181593B CN102181593B (en) | 2012-07-18 |
Family
ID=44567879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101267020A Active CN102181593B (en) | 2011-05-17 | 2011-05-17 | Method for judging damage of blast furnace tuyere small sleeve |
Country Status (1)
| Country | Link |
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| CN (1) | CN102181593B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105886684A (en) * | 2015-01-26 | 2016-08-24 | 鞍钢股份有限公司 | Early diagnosis method for damage of blast furnace double-chamber tuyeres |
| CN106929620A (en) * | 2017-04-12 | 2017-07-07 | 河钢股份有限公司承德分公司 | A kind of apparatus and method that accurate leakage detection is carried out to blast furnace tuyere small sleeve |
| CN108220516A (en) * | 2017-12-11 | 2018-06-29 | 鞍钢股份有限公司 | A kind of method whether on-line checking blast-furnace tuyere damages |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5686678A (en) * | 1979-12-15 | 1981-07-14 | Akira Yamamoto | Copper jacket for steel making |
| CN2332728Y (en) * | 1998-07-10 | 1999-08-11 | 刘志昌 | Assembling blast furnace tuyere |
| UA63751A (en) * | 2003-06-10 | 2004-01-15 | Public Corp Mariupol Metallurg | A blowing tuyere of the blast furnace |
| JP2007302916A (en) * | 2006-05-09 | 2007-11-22 | Jfe Steel Kk | Method for recovering waste heat from tuyere in blast furnace, and tuyere for blowing air into blast furnace |
| WO2008011696A1 (en) * | 2006-07-24 | 2008-01-31 | Gerdau Acominas S/A | Cart with trolley for changing tuyeres |
-
2011
- 2011-05-17 CN CN2011101267020A patent/CN102181593B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5686678A (en) * | 1979-12-15 | 1981-07-14 | Akira Yamamoto | Copper jacket for steel making |
| CN2332728Y (en) * | 1998-07-10 | 1999-08-11 | 刘志昌 | Assembling blast furnace tuyere |
| UA63751A (en) * | 2003-06-10 | 2004-01-15 | Public Corp Mariupol Metallurg | A blowing tuyere of the blast furnace |
| JP2007302916A (en) * | 2006-05-09 | 2007-11-22 | Jfe Steel Kk | Method for recovering waste heat from tuyere in blast furnace, and tuyere for blowing air into blast furnace |
| WO2008011696A1 (en) * | 2006-07-24 | 2008-01-31 | Gerdau Acominas S/A | Cart with trolley for changing tuyeres |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105886684A (en) * | 2015-01-26 | 2016-08-24 | 鞍钢股份有限公司 | Early diagnosis method for damage of blast furnace double-chamber tuyeres |
| CN106929620A (en) * | 2017-04-12 | 2017-07-07 | 河钢股份有限公司承德分公司 | A kind of apparatus and method that accurate leakage detection is carried out to blast furnace tuyere small sleeve |
| CN106929620B (en) * | 2017-04-12 | 2019-10-18 | 河钢股份有限公司承德分公司 | The device and method that a kind of pair of blast furnace tuyere small sleeve carries out accurate leakage detection |
| CN108220516A (en) * | 2017-12-11 | 2018-06-29 | 鞍钢股份有限公司 | A kind of method whether on-line checking blast-furnace tuyere damages |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102181593B (en) | 2012-07-18 |
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