CN204729117U - A kind of goaf firebreak device - Google Patents
A kind of goaf firebreak device Download PDFInfo
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- CN204729117U CN204729117U CN201520328005.7U CN201520328005U CN204729117U CN 204729117 U CN204729117 U CN 204729117U CN 201520328005 U CN201520328005 U CN 201520328005U CN 204729117 U CN204729117 U CN 204729117U
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- goaf
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Abstract
The utility model discloses a kind of goaf firebreak device, comprising support, nozzle, blower fan and the cavity for placing absorbent material; Described Bracket setting is in comprehensive coal face termination; Nozzle has multiple, and nozzle and cavity are all fixed on support; Blower fan is arranged on air intake crossheading and is positioned at the termination of comprehensive coal face; Each nozzle is all connected with water supplying unit by pipeline, cavity is connected with multiple shower nozzle, and the gas outlet of blower fan is connected with cavity.In this device, absorbent material shower nozzle is combined with hydraulic spray nozzle and forms water conservation layer on Residual coal in goaf surface, and reach the effect of cooling, anoxybiotic, final realization prevents the object of spontaneous combustion in goaf.
Description
Technical field
The utility model relates to a kind of firebreak device, particularly relates to a kind of coal mine gob firebreak device.
Background technology
Coal-mine fire not only seriously restricts China's coal-mine enterprise security High-efficient Production for a long time, also creates a large amount of casualtiess and property loss, and the fire caused because of spontaneous combustionof coal accounts for more than 90% of total coal-mine fire number.In recent years, in order to enhance productivity, coal mine machinery level improves gradually, and China is widely used Longwall Top Coal Caving Method, this coal-mining method also exists that height is large, goaf leaves over that residual coal is many, the shortcoming such as serious of leaking out, and makes spontaneous combustion of coal frequent.Heat-radiation belt, oxidized zone, suffocative zone can be formed in goaf in progress of coal mining, the specific condition in goaf is given and is lost coal and provide a good accumulation of heat environment and goaf exists the oxygen supply continued, one of the principal element of these 2 spontaneous combustionof coals just, along with the increase of goaf float coal thickness and leakage intensity, lose coal in heat-radiation belt and can discharge a large amount of heats gradually, in oxidized zone, broken coal contacts more frequent with oxygen, and the possibility of coal generation spontaneous combustion is larger.The safe working of the fire caused because of spontaneous combustion in goaf serious threat coal mining enterprise, must take effectively preventing measure to prevent coal spontaneous combustion.Coal body spontaneous combustion is mainly because when coal oxidation releasing heat is greater than it to environment dispersed heat, coal body internal heat builds up and enters from the heating period, and coal temperature raises gradually until burn.
For coal spontaneous combustion characteristic, China extensively adopts the preventing and extinguishing fire technology such as water filling, grouting, sprinkling retardant, note noble gas, gel, dytory, three-phase froth.Wherein water injection technology is widely used in goaf coal spontaneous combustion control because of advantages such as technique are simple, cost is low, absorbing and cooling temperature speed is fast, but it exists that water consumption is large, area coverage is little, mobility is large and promotes the drawbacks such as coal body spontaneous combustion on the contrary to a certain extent along with the evaporation of moisture, constrains development and the application of the method.And traditional sprinkling water smoke method, the effective rate of utilization of water resource is low, causes the waste of great lot of water resources; Workman's normal operation is affected at work plane formation high temperature, high humidity environment.
Summary of the invention
In order to solve existing goaf leave over residual coal many, leak out serious, heat-radiation belt is lost coal because of self-heating and can be discharged a large amount of heats, and the spontaneous combustion of remaining coal tendentiousness of oxidized zone increases.The utility model provides a kind of goaf firebreak device,
The technical solution of the utility model is as follows:
A kind of goaf firebreak device, its special character is: comprise support, nozzle, blower fan and the cavity for placing absorbent material;
Described Bracket setting is in comprehensive coal face termination; Nozzle has multiple, and nozzle and cavity are all fixed on support; Blower fan is arranged on air intake crossheading and is positioned at the termination of comprehensive coal face;
Each nozzle is all connected with water supplying unit by pipeline, cavity is connected with multiple shower nozzle, and the gas outlet of blower fan is connected with cavity.
Above-mentioned support is hydraulic support.
Hydraulic support has multiple, and each hydraulic support installs described nozzle respectively.
Spacing between above-mentioned shower nozzle is 0.5m.
Absorbent material is pulverous absorbent material.
Absorbent material is polyacrylate resinoid.
Said nozzle is hydraulic spray nozzle.
The utility model has following technique effect:
1 the utility model directly can bring water smoke into goaf, and is attached to something lost coal surface, is condensed into jelly water conservation layer, reaches the effect of anoxybiotic, cooling.
2 absorbent materials are polyacrylate type high water absorption resin, have that cost is low, water absorbing capacity good, long shelf-life, water absorbing capacity are strong, absorption speed is fast, some metal ion is had to the advantage of stronger complexing power, water resource can also be utilized to greatest extent, reach water-saving result.
3 absorbent material Water-saving effect are good, the long-time water conservation of energy, can take away the heat dissipation capacity of goaf heat-radiation belt and reduce oxidized zone coal spontaneous combustion threat.
4 use absorbent material can absorb the unnecessary steam of work plane, keep work plane dry and comfortable, provide good working environment to workman.
5 adopt the strong absorbent material of saline-alkaline tolerance that retardant fireproofing extinguishing materials can be coordinated to use, and fire extinguishing performance is more superior.
Accompanying drawing explanation
Fig. 1 structural representation of the present utility model;
Fig. 2 absorbent material action effect figure.
Reference numeral:
1-coal-winning machine, 2-support, 3-nozzle, 4-cavity, 5-shower nozzle, 6-blower fan.
Detailed description of the invention
As shown in Figure 1, the utility model provides a kind of goaf firebreak device and comprises support, nozzle, blower fan and the cavity for placing absorbent material; Nozzle is hydraulic spray nozzle; The length of cavity is fixed with face length, and cavity is connected with multiple shower nozzle, the spacing between shower nozzle can be set to 0.5m; Absorbent material is Powdered super absorbent material, can adopt polyacrylate resinoid, and polyacrylate resinoid is super absorbent resin.Support 2 for support works face top board, and provides mounting platform for nozzle 3, cavity 4 and shower nozzle 5.
Bracket setting is in comprehensive coal face termination, and coal mine work area is furnished with coal-winning machine 1, and coal-winning machine and support assorted work, constantly can advance along with the propelling of work plane, meets longwall top coal caving requirement.Support can be used for support works face top board.
Nozzle has multiple, nozzle, cavity conjunction and shower nozzle all can be fixed on support.
Each nozzle is all connected with water supplying unit by pipeline, can spray water smoke to goaf, reaches the effect of cooling, dedusting.
Blower fan is arranged on air intake crossheading and is positioned at the termination of comprehensive coal face; The gas outlet of blower fan is connected with cavity, and it is distinguished and admirable that blower fan passes into high pressure to cavity, moves with work plane, and blower fan provides power for cavity 4 sprays the absorbent material wherein placed, and is sprayed by absorbent material by high pressure is distinguished and admirable from shower nozzle.Be placed on absorbent material in cavity by sprinkler on Residual coal in goaf, intensity of spray irrigation regulates by blower fan 6, make absorbent material can uniform fold on something lost coal surface, reach the effect of water conservation, cooling.
Support can adopt hydraulic support, hydraulic support has multiple, on each hydraulic support, a nozzle can be installed, the hydraulic pressure of nozzle and flow can regulate according to actual needs, for spraying water smoke to work plane and goaf, increase the humidity in work plane and goaf, reach the effect of cooling, dedusting.
For making fire extinguishing performance of the present utility model more superior, the strong absorbent material of saline-alkaline tolerance can be adopted and coordinate retardant fireproofing extinguishing materials to use.
As shown in Figure 2
Absorbent material a2 is condensed into colloidal water conservation layer after absorbing water and covers on Residual coal in goaf a1, reaches the effect of cooling, anoxybiotic, effectively can reduce the threat of goaf coal spontaneous combustion.
Operating principle
By to goaf sprinkling powder powder absorbent material, in conjunction with water filling device, can be attached to after absorbent material water suction and lose coal surface and form the gluey water conservation layer of one deck, thus reach reduce coal temperature, effect that starvation enters coal body.
Claims (7)
1. a goaf firebreak device, is characterized in that: comprise support, nozzle, blower fan and the cavity for placing absorbent material;
Described Bracket setting is in comprehensive coal face termination; Nozzle has multiple, and nozzle and cavity are all fixed on support; Blower fan is arranged on air intake crossheading and is positioned at the termination of comprehensive coal face;
Each nozzle is all connected with water supplying unit by pipeline, cavity is connected with multiple shower nozzle, and the gas outlet of blower fan is connected with cavity.
2. goaf according to claim 1 firebreak device, is characterized in that: described support is hydraulic support.
3. goaf according to claim 2 firebreak device, is characterized in that: hydraulic support has multiple, and each hydraulic support installs described nozzle respectively.
4. goaf according to claim 3 firebreak device, is characterized in that: the spacing between described shower nozzle is 0.5m.
5. goaf according to claim 4 firebreak device, is characterized in that: absorbent material is pulverous absorbent material.
6. the goaf firebreak device according to claim 1 or 2 or 3 or 4 or 5, is characterized in that: absorbent material is polyacrylate resinoid.
7. goaf according to claim 6 firebreak device, is characterized in that: described nozzle is hydraulic spray nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328005.7U CN204729117U (en) | 2015-05-20 | 2015-05-20 | A kind of goaf firebreak device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520328005.7U CN204729117U (en) | 2015-05-20 | 2015-05-20 | A kind of goaf firebreak device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204729117U true CN204729117U (en) | 2015-10-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520328005.7U Expired - Fee Related CN204729117U (en) | 2015-05-20 | 2015-05-20 | A kind of goaf firebreak device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204729117U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422162A (en) * | 2015-12-25 | 2016-03-23 | 湖南科技大学 | Mined-out area cooling device and cooling method utilizing filling material capable of absorbing heat |
| CN106640175A (en) * | 2016-12-02 | 2017-05-10 | 中国矿业大学(北京) | Active fire prevention and extinguishing technique of preventing coal self-combustion in goaf |
| CN107456695A (en) * | 2017-07-20 | 2017-12-12 | 山东国泰科技有限公司 | A kind of environment-friendly type water-based extinguishing agent for forest extinguishing aircraft and preparation method thereof |
| CN107524459A (en) * | 2016-12-26 | 2017-12-29 | 北京城建集团有限责任公司 | A kind of Underground Subway Station vertical shaft and transverse passage-way freeze water sealing structure and method |
| CN110026055A (en) * | 2019-04-29 | 2019-07-19 | 西安科技大学 | A kind of coal working face CO adsorption eliminating device and method |
| CN110242344A (en) * | 2019-07-30 | 2019-09-17 | 鄂尔多斯市中北煤化工有限公司 | A kind of device to mechanized coal mining bracket rear automatic spraying powdery fire proofing material |
| CN112963192A (en) * | 2021-03-25 | 2021-06-15 | 西安科技大学 | Circulating flame-retardant device and method for goaf under mine |
-
2015
- 2015-05-20 CN CN201520328005.7U patent/CN204729117U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422162A (en) * | 2015-12-25 | 2016-03-23 | 湖南科技大学 | Mined-out area cooling device and cooling method utilizing filling material capable of absorbing heat |
| CN105422162B (en) * | 2015-12-25 | 2017-09-05 | 湖南科技大学 | A kind of utilization can absorb heat the goaf heat sink and cool-down method of filler |
| CN106640175A (en) * | 2016-12-02 | 2017-05-10 | 中国矿业大学(北京) | Active fire prevention and extinguishing technique of preventing coal self-combustion in goaf |
| CN106640175B (en) * | 2016-12-02 | 2019-10-29 | 中国矿业大学(北京) | A kind of active fire extinguishing device and method preventing goaf coal spontaneous combustion |
| CN107524459A (en) * | 2016-12-26 | 2017-12-29 | 北京城建集团有限责任公司 | A kind of Underground Subway Station vertical shaft and transverse passage-way freeze water sealing structure and method |
| CN107456695A (en) * | 2017-07-20 | 2017-12-12 | 山东国泰科技有限公司 | A kind of environment-friendly type water-based extinguishing agent for forest extinguishing aircraft and preparation method thereof |
| CN107456695B (en) * | 2017-07-20 | 2021-01-05 | 山东国泰科技有限公司 | Environment-friendly water-based fire extinguishing agent for forest fire-fighting aircraft and preparation method thereof |
| CN110026055A (en) * | 2019-04-29 | 2019-07-19 | 西安科技大学 | A kind of coal working face CO adsorption eliminating device and method |
| CN110242344A (en) * | 2019-07-30 | 2019-09-17 | 鄂尔多斯市中北煤化工有限公司 | A kind of device to mechanized coal mining bracket rear automatic spraying powdery fire proofing material |
| CN110242344B (en) * | 2019-07-30 | 2024-04-30 | 鄂尔多斯市中北煤化工有限公司 | Device for automatically spraying powdery fireproof material to rear of fully-mechanized coal mining support |
| CN112963192A (en) * | 2021-03-25 | 2021-06-15 | 西安科技大学 | Circulating flame-retardant device and method for goaf under mine |
| CN112963192B (en) * | 2021-03-25 | 2023-03-14 | 西安科技大学 | Circulating flame-retardant device and method for goaf under mine |
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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: 20151028 Termination date: 20160520 |