CN102020997B - Repairing method for briquette collapse of tamping coke oven - Google Patents
Repairing method for briquette collapse of tamping coke oven Download PDFInfo
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- CN102020997B CN102020997B CN 201010617439 CN201010617439A CN102020997B CN 102020997 B CN102020997 B CN 102020997B CN 201010617439 CN201010617439 CN 201010617439 CN 201010617439 A CN201010617439 A CN 201010617439A CN 102020997 B CN102020997 B CN 102020997B
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- briquette
- coke
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- furnace
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Abstract
The invention belongs to the technical field of coking in the coal chemical industry, in particular relating to a repairing method for the briquette collapse of a tamping coke oven. The invention can quickly, simply, conveniently and effectively prevent the strong change of the temperature of the tamping coke oven when the briquette is collapsed. The repairing method for the briquette collapse of the tamping coke oven comprises the following steps of: stopping coke-oven gas heating, and utilizing blast-furnace gas heating; when the briquette with less than 5% of gross weight is collapsed, reducing the blast-furnace gas flow rate of a carbonization chamber at the briquette collapse position to make the temperature of a furnace head not exceed 1,400 DEG C; and when the briquette with more than 5% of gross weight is collapsed, stopping the top-gas heating to utilize the coke-oven gas heating, and reducing the coke-oven gas flow rate of a relative vertical flame path at the briquette collapse position. The invention can immediately regulate the temperature of the tamping coke oven and protect the wall of the tamping coke oven from damaging when the briquette is collapsed.
Description
Technical field
The invention belongs in Coal Chemical Industry coking technology field, particularly a kind of tamping coke furnace briquette method of redress of collapsing.
Background technology
Compare with tradition top dress coke oven, TAMPING COKING PROCESS is being improved coke quality, enlarges coking coal resource, and the aspects such as reduction coking cost have clear superiority.But because mixed coal moisture, fineness inequality, cause the tamping coke furnace ubiquity briquette phenomenon of collapsing.Collapse in case briquette occurs, certainly will affect production furnace temperature stability, also will cause the coking chamber metope impaired, even will cause coking chamber both sides metope to coking chamber center deflection.
Simple tamping coke furnace with blast furnace (BF) gas heating, when briquette collapsed, effective means did not go to control the homogeneity of coke oven furnace temperature, and is the variation that furnace temperature is accepted in passive going, cause not having the both sides temperature of furnace wall of coal constantly to raise, cause at last furnace wall to crumple.
Also have at present tamping coke furnace to be furnished with simultaneously blast furnace gas, coke-oven gas heating unit, the install pipeline of blast furnace gas is in regenerator, in the wall of the pipe built-in of coke-oven gas between coking chamber and regenerator.But the coke-oven gas type of heating only uses when lacking blast furnace gas, does not use when the tamping coke furnace briquette collapses.
Summary of the invention
Technical problem to be solved by this invention provides the method for redress that a kind of tamping coke furnace briquette collapses, the strong variations of tamping coke furnace temperature when the method can quick, easy, effectively prevent briquette to collapse.
The method of redress that a kind of tamping coke furnace briquette collapses is closed coke-oven gas heating, adopts blast furnace (BF) gas heating, when the briquette of gross weight below 5% collapses, reduces the collapse blast furnace gas flow of position coking chamber of briquette, makes end flue temperature be no more than 1400 ℃; When the briquette of gross weight more than 5% collapses, close blast furnace (BF) gas heating, adopt the coke-oven gas heating, and reduce the collapse coke-oven gas flow of the corresponding flue in position of briquette.
The method of the coke-oven gas flow of described minimizing flue is at flue smaller branch pipe orifice plate foundary weight silk, namely increases an iron wire in pipeline.
The collapse temperature of combustion chamber, coking chamber both sides, position of monitoring briquette when temperature is higher than 1400 ℃, is released coke, prevents that furnace wall from crumpling.
The Temperature Treatment method that briquette collapsed when the present invention was a kind of quick and easy blast furnace (BF) gas heating can reach when briquette collapses, the purpose that in time adjusting furnace temperature, and protection furnace wall is without prejudice.
Embodiment
The invention will be further elaborated below in conjunction with embodiment.Embodiment only is used for explanation the present invention, rather than limits by any way the present invention.
Embodiment 1
As an example of DN55-07 type tamping coke furnace example (40 tons of coals), close the coke-oven gas heating, adopt blast furnace (BF) gas heating, normal end flue temperature was not 1200 to 1300 when briquette collapsed, the ultimate temperature of coking chamber metope is 1432.
A, coking time long (more than 26 hours)
1. briquette collapses fewly, and only collapse in the burner position, and amount is no more than 2 tons, the side vault blast furnace gas cock that only will collapse (plus-minus cock, the control gas flow) pass 1/3-1/4, and the control end flue temperature is advisable than low 15-20 ℃ of standard temperature.
Briquette collapses in 500 kilograms, and treatment process is the same, but wants the interval to measure this coking chamber end flue temperature in 4 hours simultaneously, and end flue temperature does not allow above 1400 ℃.
2. briquette collapses in a large number, above 2 tons, must close blast furnace gas, the heating of employing coke-oven gas, and at briquette corresponding position, the position flue smaller branch pipe orifice plate foundary weight silk that collapses, per 4 hours survey cross wall (combustion chamber, coking chamber both sides) temperature are by the cock of control coal gas plus-minus, control the coal gas amount, be no more than 1400 ℃ thereby adjust end flue temperature.
B, coking time are in 22.5-26 hour scope
1. briquette pusher side (coke side) collapses on a small quantity or send not in placely, and the briquette amount of collapsing is no more than 2 tons, and the side of will collapsing vault blast furnace gas cock closes 1/3-1/4, measures burners and few coal position fire path temperature, and guarantees that end flue temperature was no more than 1400 ℃ in per 4 hours.
2. briquette collapses in a large number, above 2 tons, must close blast furnace gas, the heating of employing coke-oven gas, and at the briquette position corresponding flue smaller branch pipe orifice plate foundary weight silk that collapses, per 4 hours survey cross wall temperature are by the cock of control coal gas plus-minus, control the coal gas amount, be no more than 1400 ℃ thereby adjust end flue temperature.When temperature is higher than 1400, before adjacent coking chamber coke pushing prerequisite, coke is released.
Adopt aforesaid method, the briquette amount of collapsing is no more than 2 ton hours, and coking can be carried out smoothly, and product conforms to quality requirements, and tamping coke furnace equipment can not sustain damage, and does not affect the carrying out of follow-up work.
The briquette amount of collapsing surpasses 2 ton hours, and by adjusting the flow of coke-oven gas, when end flue temperature was no more than 1400 ℃, coking can be carried out smoothly, and product conforms to quality requirements.When the briquette situation of collapsing is serious, when the flow of adjusting coke-oven gas was failed to control end flue temperature and is no more than 1400 ℃, process of coking was ended, and product is not up to standard, but tamping coke furnace equipment can not sustain damage, and did not affect the carrying out of follow-up work.
Claims (3)
1. the tamping coke furnace briquette method of redress of collapsing, it is characterized in that: when the briquette of gross weight below 5% collapses, close the coke-oven gas heating, adopt blast furnace (BF) gas heating, reduce the collapse blast furnace gas flow of position coking chamber of briquette, make end flue temperature be no more than 1400 ℃; When the briquette of gross weight more than 5% collapses, close blast furnace (BF) gas heating, adopt the coke-oven gas heating, and reduce the collapse coke-oven gas flow of the corresponding flue in position of briquette; Make end flue temperature be no more than 1400 ℃.
2. the tamping coke furnace briquette according to claim 1 method of redress of collapsing is characterized in that: the method for the coke-oven gas flow of described minimizing flue is at flue smaller branch pipe orifice plate foundary weight silk.
3. the tamping coke furnace briquette according to claim 1 and 2 method of redress of collapsing is characterized in that: the collapse temperature of combustion chamber, coking chamber both sides, position of monitoring briquette, when temperature is higher than 1400 ℃, coke is released.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010617439 CN102020997B (en) | 2010-12-31 | 2010-12-31 | Repairing method for briquette collapse of tamping coke oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010617439 CN102020997B (en) | 2010-12-31 | 2010-12-31 | Repairing method for briquette collapse of tamping coke oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102020997A CN102020997A (en) | 2011-04-20 |
| CN102020997B true CN102020997B (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201010617439 Expired - Fee Related CN102020997B (en) | 2010-12-31 | 2010-12-31 | Repairing method for briquette collapse of tamping coke oven |
Country Status (1)
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| CN (1) | CN102020997B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102517044A (en) * | 2011-12-14 | 2012-06-27 | 攀钢集团西昌钢钒有限公司 | Temperature adjusting method for treating coal cake collapse and coal charging dead corner |
| CN113234458B (en) * | 2021-06-23 | 2022-06-17 | 攀钢集团攀枝花钢钒有限公司 | Tamping coal cake coal caving control method |
| CN114774150A (en) * | 2022-04-29 | 2022-07-22 | 包头钢铁（集团）有限责任公司 | Method for reducing heat consumption of tamping coke oven |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2721643Y (en) * | 2004-06-10 | 2005-08-31 | 济南钢铁股份有限公司 | Coke stamping device for top loaded cokery |
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2010
- 2010-12-31 CN CN 201010617439 patent/CN102020997B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2721643Y (en) * | 2004-06-10 | 2005-08-31 | 济南钢铁股份有限公司 | Coke stamping device for top loaded cokery |
Non-Patent Citations (1)
| Title |
|---|
| 许志坤，杨晓坤.捣固焦炉塌煤问题的治理.《燃料与化工》.2010,第41卷(第5期),全文. * |
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| CN102020997A (en) | 2011-04-20 |
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Granted publication date: 20130306 Termination date: 20161231 |