CN205275521U - Device for preventing basement of coke oven from detonating - Google Patents
Device for preventing basement of coke oven from detonating Download PDFInfo
- Publication number
- CN205275521U CN205275521U CN201521048870.2U CN201521048870U CN205275521U CN 205275521 U CN205275521 U CN 205275521U CN 201521048870 U CN201521048870 U CN 201521048870U CN 205275521 U CN205275521 U CN 205275521U
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- CN
- China
- Prior art keywords
- gas
- nitrogen
- coke oven
- nitrogen gas
- coal gas
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000571 coke Substances 0.000 title claims abstract description 40
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 121
- 239000007789 gas Substances 0.000 claims abstract description 72
- 239000003034 coal gas Substances 0.000 claims abstract description 42
- 238000005474 detonation Methods 0.000 claims abstract description 38
- 238000010926 purge Methods 0.000 claims abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims description 61
- 238000009826 distribution Methods 0.000 claims description 14
- 230000001105 regulatory effect Effects 0.000 claims description 8
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 10
- 238000004458 analytical method Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Landscapes
- Coke Industry (AREA)
Abstract
The utility model relates to a device for preventing coke oven basement is detonating, including gas system and nitrogen gas purging system, gas system includes that the gas is responsible for, the gas is responsible for the machine at the coke oven, two gas distributing pipes are respectively drawn forth to the burnt side, nitrogen gas purging system includes that nitrogen gas is responsible for, the nitrogen gas is responsible for the machine at the coke oven, two nitrogen gas distributing pipes are respectively drawn forth to the burnt side, the gas distributing pipe is equipped with two at least gas branch pipes, be equipped with gas regulation cock on the gas branch pipe, gas pocket board and gas exchange cock, be equipped with the nitrogen gas branch pipe with the same quantity of gas branch pipe on the nitrogen gas distributing pipe, the nitrogen gas distributing pipe passes through the nitrogen gas branch pipe and links to each other with the gas branch pipe, the nitrogen gas branch union. The utility model discloses thoroughly eliminated the detonation phenomenon of coke oven basement and the damage of the coal gas conveying equipment that the detonation phenomenon brought, guaranteed operating personnel's personal safety and the steady operation of production.
Description
Technical field
This utility model belongs to coking field, relates to and prevents coke-stove gas explosion technique, is specifically related to a kind of device preventing coke oven basement detonation.
Background technology
The capacity coke oven overwhelming majority of current domestic application is underjet coke oven, and it, using coke-stove gas as when adding hot charge, after switch swaps, there will be detonation phenomenon at coke oven basement. The generation of detonation phenomenon will bring a series of potential safety hazard to coking production: one is destroy coke furnace building body, causes that coal gas, air, waste gas string leak, affects the heating of coke oven; Two is destroy coal gas conveying and adjustment equipment, causes coal gas to leak, affects the adjustment of coke oven temperature; Three are, noise pollution, increase the psychological burden of operator; Four are, damage operator, jeopardize safety in production.
The main cause producing detonation is after ascending air turns down current, retains while a small amount of coal gas leaking-in air in pipeline in pipeline, under the heat effect of down current, and air/gas gaseous mixture generation detonation.
The major measure preventing detonation at present includes:
1, by changing the commutating period of each step of switch, the time taking out remaining coal gas is increased, thus eliminating because cock de-carbon mouth place air enters brick gas passage with not taking out most remaining coal gas and produce the phenomenon of detonation;
2, the tightness of each pipeline of coke oven basement is ensured by various measures, it is prevented that the entrance of air.
" Anshan iron and steel plant technology " 1994; 8th phase; 43rd page discloses " after the commutation of coke oven coke-stove gas the detonation analysis of causes and preventive measure " author: Jiang Shaoyou, the in addition analysis of detonation (also referred to as blowing out) phenomenon that article produces after coke-oven gas is commutated, and several coke ovens of Anshan iron and steel plant chemical general factory etc. have been done investigation, have found the main cause producing detonation, it is proposed that corrective measure.
" Benxi Higher Training School of Metallurgy's journal " calendar year 2001; 3rd volume, the 2nd phase; 18th page discloses " analysis preventing coke-stove gas exchange rotary plug detonation ", author: Wang Zhengzhuan, article, by the analysis to common gas exchange rotary plug detonation phenomenon, finds out the reason that detonation occurs, and demonstrating coal gas negative pressur exchanging cock is the effective measures eliminating detonation.
The detonation reason that above two sections of papers produce after coke-stove gas is commutated has been analyzed, it is believed that cock de-carbon hole is the main cause entering air in gas piping, and proposes to adopt novel negative pressure cock device to solve detonation problem. But, the air entering gas pipe is not only that other positions there is also the possibility of gas leakage owing to cock de-carbon hole is caused, therefore, and the problem that this device can not fundamentally solve basement detonation.
" Guangdong chemical industry " 2014; 21st phase; 122nd page discloses " the wine steel 3# coke oven basement detonation analysis of causes and improvement ", author: Fang Dengbao, when article elaborates to heat with coke-stove gas, and the reason of basement detonation after commutation. Main from destroying explosion gas formation condition, take corresponding regulation measure, and propose the improvement idea to exchange rotary plug, greatly reduce the phenomenon of basement detonation.
This paper thinks that the reason producing detonation phenomenon specifically includes that cock uses the time long, and spool weares and teares, and oil groove leaks gas; Exchange rotary plug is not in place, stroke adjustment not in time, cock is opened and is fitted badly; The exchange waste gas time is short, and in pipeline, residual air is remaining.
For above-mentioned reason, correspondingly take following measure: delivery cock, strengthen lubrication and seal maintenance; Along with the change of ambient temperature adjusts tie rod stroke; Check and change the cock etc. of serious wear in time. But, all it is reduction of the incidence rate of detonation, it does not have the problem fundamentally solving detonation.
Current various method is all reduction of the incidence rate of detonation, it does not have fundamentally solve the generation of coke oven basement detonation phenomenon. Therefore, it is badly in need of developing a kind of device that can thoroughly prevent coke oven basement detonation.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of device preventing coke oven basement detonation, fundamentally thoroughly eliminates coke oven basement detonation phenomenon.
For achieving the above object, this utility model realizes by the following technical solutions:
A kind of device preventing coke oven basement detonation, including coal gas system and nitrogen purge system, coal gas system includes coal gas supervisor, coal gas supervisor is at the machine of coke oven, coke side respectively draws two gas allocation pipes, nitrogen purge system includes nitrogen supervisor, nitrogen supervisor is at the machine of coke oven, coke side respectively draws two nitrogen distribution pipes, gas allocation pipe is provided with at least two branch gas tubes, branch gas tube is provided with coal gas regulating cock, coal gas orifice plate and gas exchange rotary plug, nitrogen distribution pipe is provided with nitrogen arm same amount of with branch gas tube, nitrogen distribution pipe is connected with branch gas tube by nitrogen arm, nitrogen arm is attached on the pipeline between coal gas regulating cock and gas exchange rotary plug, nitrogen arm is provided with nitrogen exchange rotary plug.
The diameter of described nitrogen distribution pipeFor 20mm��50mm, nitrogen arm diameterFor 10mm��30mm.
Compared with prior art, the beneficial effects of the utility model are:
The detonation phenomenon of coke oven basement is eliminated up hill and dale and the damage of coal gas conveying equipment that detonation phenomenon is brought by the installation of this device, a relatively quietly operating environment is provided for operator, eliminate the psychological burden of operator, it is ensured that the personal safety of operator and the stable operation of production.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the unilateral coke-stove gas of machine, coke side and nitrogen pipeline connection diagram.
In figure: 1 coal gas is responsible for 2 nitrogen supervisor 3-gas allocation pipe 4-nitrogen distribution pipe 5-branch gas tube I6-nitrogen arm I7-coal gas regulating cock 8-coal gas orifice plate 9-nitrogen exchange rotary plug 10-gas exchange rotary plug 11-nitrogen arm II12-branch gas tube II
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is further illustrated:
A kind of device preventing coke oven basement detonation, including coal gas system and nitrogen purge system, coal gas system includes coal gas supervisor, gas allocation pipe, branch gas tube, coal gas regulating cock, coal gas orifice plate, gas exchange rotary plug, nitrogen purge system includes nitrogen supervisor, nitrogen distribution pipe, nitrogen arm, nitrogen exchange rotary plug.
Such as Fig. 1, coal gas system includes coal gas supervisor 1, and coal gas supervisor 1 respectively draws two gas allocation pipes 3 at the machine of coke oven, coke side. Nitrogen purge system includes nitrogen supervisor 2, and nitrogen supervisor 2 respectively draws two nitrogen distribution pipes 4 at the machine of coke oven, coke side.
Such as Fig. 2, gas allocation pipe 3 is provided with branch gas tube I5 and branch gas tube II12, branch gas tube I5 and branch gas tube II12 is provided with coal gas regulating cock 7, gas vent 8 plate and gas exchange rotary plug 10, nitrogen distribution pipe 4 is provided with nitrogen arm I6 and nitrogen arm II11, nitrogen distribution pipe 4 is connected with branch gas tube by nitrogen arm, nitrogen arm is attached on the pipeline between coal gas regulating cock and gas exchange rotary plug, and nitrogen arm is provided with nitrogen exchange rotary plug 7.
For 1 domestic 7 meters of coke oven, the diameter of nitrogen distribution pipe isNitrogen arm diameter is
Exchange rotary plug on nitrogen arm and nitrogen arm respectively with the simultaneously action of the exchange rotary plug on the branch gas tube being connected and branch gas tube. When the coal gas in branch gas tube changes down current into from ascending air, gas exchange rotary plug is closed, and meanwhile, nitrogen exchange rotary plug is opened, and passes into the nitrogen residual coal gas to purge in branch gas tube.
When the coal gas in branch gas tube changes down current into from ascending air, gas exchange rotary plug is closed, now, owing to down current moves downward, there is a small amount of coal gas at gas cock and pipeline place, owing to each junction of gaspipe line exists leak source, causes that air enters, form coal gas/air Mixture, now open nitrogen exchange rotary plug and be filled with nitrogen coal gas/air Mixture to purge in branch gas tube. When entering the gaspipe line of basement with the down current of heat, due to the dilution of nitrogen, mixing gas is made not reach explosion condition, thus effectively eliminating the generation of detonation phenomenon.
Described above is only ultimate principle of the present utility model, not this utility model is imposed any restrictions, and it is carried out equivalent variations and modification by every foundation this utility model, all within the category of the art of this patent protection scheme.
Claims (2)
1. the device preventing coke oven basement detonation, it is characterized in that, including coal gas system and nitrogen purge system, coal gas system includes coal gas supervisor, coal gas supervisor is at the machine of coke oven, coke side respectively draws two gas allocation pipes, nitrogen purge system includes nitrogen supervisor, nitrogen supervisor is at the machine of coke oven, coke side respectively draws two nitrogen distribution pipes, gas allocation pipe is provided with at least two branch gas tubes, branch gas tube is provided with coal gas regulating cock, coal gas orifice plate and gas exchange rotary plug, nitrogen distribution pipe is provided with nitrogen arm same amount of with branch gas tube, nitrogen distribution pipe is connected with branch gas tube by nitrogen arm, nitrogen arm is attached on the pipeline between coal gas regulating cock and gas exchange rotary plug, nitrogen arm is provided with nitrogen exchange rotary plug.
2. a kind of device preventing coke oven basement detonation according to claim 1, it is characterised in that the diameter of described nitrogen distribution pipeFor 20mm��50mm, nitrogen arm diameterFor 10mm��30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521048870.2U CN205275521U (en) | 2015-12-16 | 2015-12-16 | Device for preventing basement of coke oven from detonating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521048870.2U CN205275521U (en) | 2015-12-16 | 2015-12-16 | Device for preventing basement of coke oven from detonating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205275521U true CN205275521U (en) | 2016-06-01 |
Family
ID=56060114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521048870.2U Expired - Fee Related CN205275521U (en) | 2015-12-16 | 2015-12-16 | Device for preventing basement of coke oven from detonating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205275521U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113736484A (en) * | 2020-05-29 | 2021-12-03 | 宝山钢铁股份有限公司 | Coke oven burner supplementary heating method |
-
2015
- 2015-12-16 CN CN201521048870.2U patent/CN205275521U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113736484A (en) * | 2020-05-29 | 2021-12-03 | 宝山钢铁股份有限公司 | Coke oven burner supplementary heating method |
| CN113736484B (en) * | 2020-05-29 | 2022-10-21 | 宝山钢铁股份有限公司 | Coke oven burner supplementary heating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160601 Termination date: 20211216 |