CN105441090A - A hot-repairing rapid-cooling method for a coke oven carbonization chamber - Google Patents
A hot-repairing rapid-cooling method for a coke oven carbonization chamber Download PDFInfo
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- CN105441090A CN105441090A CN201410428571.5A CN201410428571A CN105441090A CN 105441090 A CN105441090 A CN 105441090A CN 201410428571 A CN201410428571 A CN 201410428571A CN 105441090 A CN105441090 A CN 105441090A
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Abstract
A hot-repairing rapid-cooling method for a coke oven carbonization chamber is disclosed. The method is characterized by including a) a step of converting into a coke oven gas mode in coke oven production, removing all coke in the carbonization chamber to be repaired, and closing all the cocks in combustion chambers at both sides of the carbonization chamber to be repaired, b) a step of replacing a furnace door for normal production with a spare furnace door (1), c) a step of respectively mounting a temporary steel pipe chimney (3) in two coal filling holes in the middle of the coke oven carbonization chamber, d) a step of closing a water-sealed valve turning plate (5) of a bridge pipe and opening a rising tube cap of the carbonization chamber, and e) a step of controlling a cooling process by adjusting draught areas of holes of the spare furnace door (1), temporary furnace covers (2) and holes of the temporary steel pipe chimneys (3) according to temperature data measured in the cooling process until reaching a target temperature. The method is advantageous in that a problem that overlong cooling time of the carbonization chamber is completely overcome, time for hot repairing is shortened, normal production time of a coke oven is greatly prolonged, the maintenance cost is reduced, and the production efficiency is increased.
Description
Technical field
The present invention relates to a kind of coke oven for iron area of maintenance, specifically, is a kind of coke furnace carbonization chamber hot repairing fast cooling method.
Background technology
2008, the coke output of China was 32,359 ten thousand t.China has become world's coke first big producing country, the first consumption big country and the first big export country.Coke oven is the major equipment producing coke, coke furnace carbonization chamber metope bear for a long time coaling, coke pushing time wall pressure, frictional force and more than 1150 DEG C high temperature actions, under these External Force Actings, coking chamber wall tile can peel off gradually, with the passage of time, even there is cavity, can cause when coalingging, a large amount of waste gas enters in combustion chamber and causes chimney over-emitting black exhaust, serious environment pollution; When coalingging, coal dust ash is fallen in combustion chamber by worn out hole, causes chute mouth block, makes this flue can not trouble-free burning, thus affects the production of whole coke oven, reduction coke output and quality.
Coke furnace carbonization chamber forms primarily of silica brick, and silica brick temperature is lower than 573 DEG C, and silica brick crystal inside shape produces and sharply changes, and cracks, destroys its applied at elevated temperature.The technological core of the hot repairing of coke furnace carbonization chamber is, is placing under repair lower than about 950 DEG C of the normal production temperature of coke oven, and the position that can damage is repaired, and does not cause again the original masonry of coke oven that new damage occurs.The temperature that coke furnace carbonization chamber is normally produced is at about 1200 DEG C, and ordinary method cools to 950 DEG C slowly, needs 24-48 hour.The long temperature fall time of coking chamber adds the time of hot repairing, greatly have impact on the normal production of coke oven, controls to bring difficulty to furnace equipment quality entirety.
Therefore known coke furnace carbonization chamber hot repairing cool-down method also exists above-mentioned all inconvenience and problem.
Summary of the invention
Object of the present invention, is that proposing one easily controls temperature-fall period, makes the coke furnace carbonization chamber hot repairing fast cooling method of coking chamber pusher side coke side uniform decrease in temperature.
For achieving the above object, technical solution of the present invention is:
A kind of coke furnace carbonization chamber hot repairing fast cooling method, is characterized in that comprising the following steps:
A, coke oven convert coke-oven gas heating mode in producing, and after pushing away empty coking chamber coke to be repaired, close the cock of combustion chamber, whole coking chamber both sides to be repaired, stop heating;
B, fire door for subsequent use is replaced the fire door of normal production;
Install interim steel pipe chimney (3) respectively in c, 2 holes of coalingging in the middle of the coke furnace carbonization chamber, interim bell is installed in all the other 2 holes of coalingging respectively;
The water-sealed valve turnover panel of d, closedown bridge tube, opens the upcast lid of this coking chamber, pressure upcast turnover panel, and firm by iron wire bundle;
E, according to the temperature data recorded in temperature-fall period, regulate the hole of fire door for subsequent use and interim bell, the draught area in hole of temporary chimney controls temperature-fall period, until the temperature that achieves the goal.
Coke furnace carbonization chamber of the present invention hot repairing fast cooling method can also be further achieved by the following technical measures.
Aforesaid method, the bottom attached plate of wherein said fire door for subsequent use is offered two φ 80-150mm apertures.
Aforesaid method, wherein said interim steel pipe Diameter of chimney is 600-800mm, is highly 1800-2000mm.
Aforesaid method, offers the aperture of φ 80-150mm in the middle of wherein said interim bell.
After adopting technique scheme, coke furnace carbonization chamber of the present invention hot repairing fast cooling method has the following advantages:
1, cooling step is reasonable in design, simple to operate;
2, thoroughly solve the problem that the temperature fall time of coking chamber is long, decrease the time of hot repairing, substantially increase the normal production time of coke oven;
3, reduce the cost of overhaul, enhance productivity.
Accompanying drawing explanation
Fig. 1 is the coke furnace carbonization chamber hot repairing fast cooling measure schematic diagram of the embodiment of the present invention.
In figure: 1 fire door for subsequent use, 2 interim bells, 3 interim steel pipe chimneys, 4 upcast turnover panels, 5 water-sealed valve turnover panels, 6 upcasts, 7 coking chambers, 8 apertures, 9 effusers.
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is illustrated further.
Embodiment 1
Certain 6 meters, hole, coke-oven plant of steel mill 2 × 55 coke oven, is constructed and put into operation for 2008, has 12 coking chamber metopes to occur cavity, have a strong impact on coke oven and normally produce when 2013.Coking chamber metope cavity is adopted and excavates metope cavity bad brick, use zero thermal expansion silica brick again to build by laying bricks or stones and repair, wherein coke furnace carbonization chamber produce complete lower the temperature immediately very crucial to whole mending course.
Now refer to Fig. 1, Fig. 1 is the coke furnace carbonization chamber hot repairing fast cooling measure schematic diagram of the embodiment of the present invention.Coke furnace carbonization chamber of the present invention hot repairing fast cooling method comprises the following steps:
1, coke oven converts coke-oven gas heating in producing, and after pushing away empty coking chamber coke to be repaired, closes the cock of combustion chamber, whole coking chamber both sides to be repaired, stops heating;
2, fire door for subsequent use is replaced the fire door 1 of normal production, the bottom attached plate of fire door for subsequent use is offered the hole of two φ 100mm;
3, interim steel pipe chimney 3 is installed, it is that 710mm(ratio bore dia of coalingging is slightly large that diameters are installed in 2 in the middle of coke furnace carbonization chamber holes of coalingging), it is highly the interim steel pipe chimney of 1800mm, interim bell 2 is installed in all the other 2 holes of coalingging, the hole of φ 100mm is offered, as deriving portion, the hot gas of coking chamber and regulating temperature lowering speed to use in the middle of interim stove cover plate;
4, close the water-sealed valve turnover panel 5 of bridge tube, open the upcast lid of coking chamber, pressure upcast turnover panel 5, and firm by iron wire bundle.Close water-sealed valve turnover panel, the ammoniacal liquor sprayed with bridge tube forms effective water seal, stops raw gas directly to communicate with coking chamber from effuser, eliminate safe hidden trouble in Renewal process.
5, according to the temperature data recorded in temperature-fall period, regulate the hole of fire door for subsequent use and interim bell, the draught area in hole of chimney controls temperature-fall period.Whole temperature-fall period from push away sky coking chamber to temperature be 950 DEG C amount to 7 hours, be 1/5th of conventional warm-down method.
The present invention has substantive distinguishing features and significant technical progress, coke furnace carbonization chamber of the present invention hot repairing fast cooling method thoroughly solves the long problem of the temperature fall time of coking chamber, decrease the time of hot repairing, substantially increase the normal production time of coke oven, and can be convenient to control whole furnace equipment quality.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, can also make various conversion or change.Therefore, all equivalent technical schemes also should belong to category of the present invention, should be limited by each claim.
Claims (4)
1. a coke furnace carbonization chamber hot repairing fast cooling method, is characterized in that comprising the following steps:
A, coke oven convert coke-oven gas heating mode in producing, and after pushing away empty coking chamber coke to be repaired, close the cock of combustion chamber, whole coking chamber both sides to be repaired, stop heating;
B, fire door for subsequent use is replaced the fire door (1) of normal production;
Install interim steel pipe chimney (3) respectively in c, 2 holes of coalingging in the middle of the coke furnace carbonization chamber, interim bell (2) is installed in all the other 2 holes of coalingging respectively;
The water-sealed valve turnover panel (5) of d, closedown bridge tube, opens the upcast lid of this coking chamber, pressure upcast turnover panel (4), and firm by iron wire bundle;
E, according to the temperature data recorded in temperature-fall period, regulate the hole of fire door for subsequent use (1) and interim bell (2), the draught area in hole of temporary chimney (3) controls temperature-fall period, until the temperature that achieves the goal.
2. coke furnace carbonization chamber hot repairing fast cooling method as claimed in claim 1, is characterized in that, the bottom attached plate of described fire door for subsequent use (1) is offered two φ 80-150mm apertures.
3. coke furnace carbonization chamber hot repairing fast cooling method as claimed in claim 1, it is characterized in that, described interim steel pipe chimney (3) diameter is 600-800mm, is highly 1800-2000mm.
4. coke furnace carbonization chamber hot repairing fast cooling method as claimed in claim 1, is characterized in that, offers the aperture of φ 80-150mm in the middle of described interim bell (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410428571.5A CN105441090B (en) | 2014-08-28 | 2014-08-28 | A kind of coke furnace carbonization chamber is hot to repair fast cooling method |
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| CN201410428571.5A CN105441090B (en) | 2014-08-28 | 2014-08-28 | A kind of coke furnace carbonization chamber is hot to repair fast cooling method |
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| CN105441090A true CN105441090A (en) | 2016-03-30 |
| CN105441090B CN105441090B (en) | 2017-12-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113355111A (en) * | 2021-07-06 | 2021-09-07 | 广东韶钢松山股份有限公司 | Door taking mechanism |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0641539A (en) * | 1992-07-22 | 1994-02-15 | Nippon Steel Corp | Method for controlling temperature of non-mending part in hot-mending of coke oven |
| WO2011093289A1 (en) * | 2010-01-28 | 2011-08-04 | Ｊｆｅスチール株式会社 | Method for repairing coke oven |
| CN102424753A (en) * | 2011-10-27 | 2012-04-25 | 马钢(集团)控股有限公司 | Method for repairing bricks at bottom of carbonization chamber of large coke oven |
-
2014
- 2014-08-28 CN CN201410428571.5A patent/CN105441090B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0641539A (en) * | 1992-07-22 | 1994-02-15 | Nippon Steel Corp | Method for controlling temperature of non-mending part in hot-mending of coke oven |
| WO2011093289A1 (en) * | 2010-01-28 | 2011-08-04 | Ｊｆｅスチール株式会社 | Method for repairing coke oven |
| CN102424753A (en) * | 2011-10-27 | 2012-04-25 | 马钢(集团)控股有限公司 | Method for repairing bricks at bottom of carbonization chamber of large coke oven |
Non-Patent Citations (2)
| Title |
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| 刘华: "5#焦炉四火道揭顶切除翻修方案的实施", 《安徽冶金》 * |
| 秦波等: "JN60-6型焦炉炭化室底部砖通排更换方案", 《2013年河北省炼铁技术暨学术年会论文集》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113355111A (en) * | 2021-07-06 | 2021-09-07 | 广东韶钢松山股份有限公司 | Door taking mechanism |
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| CN105441090B (en) | 2017-12-29 |
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