CN205275521U - Device for preventing detonation of coke oven basement - Google Patents
Device for preventing detonation of coke oven basement Download PDFInfo
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- 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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- nitrogen
- coal gas
- gas
- coke oven
- detonation
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Abstract
The utility model relates to a device for preventing detonation of coke oven basement, including coal gas system and nitrogen purging system, the coal gas system includes the coal gas person in charge, the machine at the coke oven is responsible for to coal gas, two coal gas distributing pipes are respectively drawn forth to burnt side, the nitrogen purging system includes the nitrogen gas person in charge, the machine at the coke oven is responsible for to nitrogen gas, two nitrogen gas distributing pipes are respectively drawn forth to burnt side, the coal gas distributing pipe is equipped with two at least coal gas branch pipes, be equipped with the coal gas regulating cock on the coal gas branch pipe, coal gas orifice plate and coal gas exchange cock, be equipped with the nitrogen gas branch pipe with the same quantity of coal 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 coal gas branch pipe, the nitrogen gas branch pipe joins on the pipeline between coal gas regulating cock and coal gas exchange cock, be equipped with nitrogen gas exchange cock on the nitrogen gas branch pipe. The utility model discloses eliminate the detonation phenomenon of coke oven basement and the coal gas conveying equipment's that the detonation phenomenon was brought damage thoroughly, guaranteed the steady operation of operating personnel's personal safety and 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 detonation of coke oven basement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521048870.2U CN205275521U (en) | 2015-12-16 | 2015-12-16 | Device for preventing detonation of coke oven basement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205275521U true CN205275521U (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521048870.2U Expired - Fee Related CN205275521U (en) | 2015-12-16 | 2015-12-16 | Device for preventing detonation of coke oven basement |
Country Status (1)
| Country | Link |
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| 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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| Date | Code | Title | Description |
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| 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 |