CN107642373A - A kind of ultrasonic atomization anion subparticle method for suppressing goaf coal spontaneous combustion - Google Patents
A kind of ultrasonic atomization anion subparticle method for suppressing goaf coal spontaneous combustion Download PDFInfo
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- CN107642373A CN107642373A CN201711091548.1A CN201711091548A CN107642373A CN 107642373 A CN107642373 A CN 107642373A CN 201711091548 A CN201711091548 A CN 201711091548A CN 107642373 A CN107642373 A CN 107642373A
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Abstract
The present invention relates to the technical field of coal-mine fire preventing and treating, particularly a kind of ultrasonic atomization anion subparticle method for suppressing goaf coal spontaneous combustion.A kind of ultrasonic atomization anion subparticle method for suppressing goaf coal spontaneous combustion, calcium hydroxide aqueous solution is continuously generated to the negative electricity particle for the subparticle composition that substantial amounts of electronics and particle diameter are 0.4~5 micron by high-frequency ultrasonic anion generator, negative electricity particle is sprayed into coal mine gob by driven fan, increase humidity in air, reduce the oxygen content in air, heat caused by absorbing oxidation, improve the ignition temperature of coal spontaneous combustion.
Description
Technical field
The present invention relates to the technical field of coal-mine fire preventing and treating, particularly a kind of ultrasonic fog for suppressing goaf coal spontaneous combustion
Change anion subparticle method.
Background technology
Coal in China yield in 2016 turns into the big coal producer of the first in the world, and coal mining depth is with every up to 33.64 hundred million tons
Year, 8~10m extended to earth formation deep, and mine pressure and ground temperature are more and more prominent.During coal production, spontaneous combustionof coal is serious
Threaten the life security and mine safety production of personnel in the pit.With the deterioration of the large-scale development and mining conditions of coal,
Conflagration Caused by Coal Self-ignition is as a disaster prominent greatly of coal production journey.
The epoch of intelligent, precision exploitation technicalization production have been stepped into coal industry, to safety in production and labor
Move the attention degree protected also more and more higher；And one of the five big disasters of spontaneous combustionof coal as mine safety production, it is effective to its
Preventing and treating is to ensure that the important leverage of mine safety production；Therefore mine preventing and extinguishing fire technology and technique efficiently, green, environmentally friendly seems
It is particularly important.Sprayed into after big flow anion subparticle ultrasonic atomization coal mine gob make the increase of goaf air humidity,
Oxygen content reduces, absorbs heat caused by oxidation, condensation forms alkaline moisture film and thoroughly completely cuts off coal oxygen complex action, so as to suppress coal
Oxidability, from physics and the aspect of chemistry two it is comprehensive reach prevent and treat the purpose of coal spontaneous combustion.And this method have non-environmental-pollution,
Nontoxic, harmless, the advantages that fire extinguishing effect is good, simple to operate, economic, have broad application prospects.
The content of the invention
The purpose of the present invention is how to provide a kind of method for preventing coal mine gob coal spontaneous combustion that cost is low, effect is good.
The technical solution adopted in the present invention is：A kind of fine of ultrasonic atomization anion for suppressing goaf coal spontaneous combustion
Grain method, calcium hydroxide aqueous solution is continuously generated into substantial amounts of electronics and particle diameter by high-frequency ultrasonic anion generator is
The negative electricity particle of 0.4~5 micron of subparticle composition, negative electricity particle is sprayed into coal mine gob by driven fan, it is mined out
Oxygen captures rapidly electronics and produces the substantial amounts of mainly anion radical based on cloudy oxonium ion and Separate Fine-grained Minerals particle in area, keeps
The anion radical and subparticle of " quasi-molecule warm-up movement " are diffused into the coal petrography of the diverse location in goaf with goaf air leaking
In porous dehiscence gap, increase humidity in air, reduce the oxygen content in air, absorb heat caused by aoxidizing, improve the combustion of coal spontaneous combustion
Point temperature, mineral subparticle and Carbon Dioxide in Air are reacted forms one layer of fine and close calcium carbonate film on coal surface, thoroughly every
Exhausted coal oxygen complex action, so as to reach the purpose for efficiently suppressing coal mine gob coal spontaneous combustion.
As a kind of preferred embodiment：The mass percent concentration of calcium hydroxide aqueous solution is 0.1%.
As a kind of preferred embodiment：Negative electricity particle is sprayed into coal mine gob by driven fan, oxygen is fast in goaf
Speed capture electronics produces the substantial amounts of mainly anion radical based on cloudy oxonium ion and Separate Fine-grained Minerals particle, keeps " quasi-molecule heat
It is dynamic " anion radical and mineral subparticle the coal petrography porous dehiscence gap of the diverse location in goaf is diffused into goaf air leaking
In.
The beneficial effects of the invention are as follows：The present invention by the way that anion radical and Separate Fine-grained Minerals particle are sprayed into pit coal ore goaf,
And then be diffused into all goafs and coal and rock porous dehiscence gap, increase humidity in air, reduce the oxygen content in air, absorb oxygen
Heat caused by change, improves the ignition temperature of coal spontaneous combustion, and mineral subparticle is reacted in coal surface shape with Carbon Dioxide in Air
The calcium carbonate film fine and close into one layer, thoroughly completely cut off coal and air（Oxygen mainly in air）, realize and efficiently prevent fires, go out
Fiery function.
Embodiment
Fresh calcium hydroxide aqueous solution will be made, due to calcium hydroxide solubility very little, it is necessary to by oscillator, formed
Calcium hydroxide mass percent concentration is 0.1% uniform calcium hydroxide suspension, and calcium hydroxide suspension is surpassed by high frequency
Sound wave anion generator continuously generates the negative electricity particle that the subparticle that substantial amounts of electronics and particle diameter are 0.4~5 micron forms,
Negative electricity particle is sprayed into coal mine gob by driven fan, in goaf oxygen capture rapidly electronics produce it is substantial amounts of mainly with
Anion radical and subparticle based on cloudy oxonium ion, keep " quasi-molecule heat dynamic " anion radical and mineral subparticle with
Goaf air leaking is diffused into the coal petrography porous dehiscence gap of the diverse location in goaf, increases humidity in air, reduces the oxygen in air
Content, heat caused by aoxidizing is absorbed, improve the ignition temperature of coal spontaneous combustion, mineral subparticle reacts with Carbon Dioxide in Air
One layer of fine and close calcium carbonate film is formed on coal surface, thoroughly completely cuts off coal oxygen complex action, so as to realize efficient fire extinguishing.
Spraying into coal mine gob after high-flow ultrasonic ripple atomization anion subparticle in the present invention makes goaf air wet
Degree increase, oxygen content reduce, absorb heat caused by oxidation, condenses and forms alkaline moisture film and thoroughly completely cut off coal oxygen complex action, from
And suppress the oxidability of coal, the comprehensive purpose for reaching preventing and treating coal spontaneous combustion in terms of physics and chemistry two.And this method has nothing
Environmental pollution, it is nontoxic, harmless, fire extinguishing effect is good, simple to operate, economical the advantages that, have broad application prospects, be mined out
The emerging technology of area's Conflagration Caused by Coal Self-ignition preventing and treating.
Claims (3)
- A kind of 1. ultrasonic atomization anion subparticle method for suppressing goaf coal spontaneous combustion, it is characterised in that：By hydroxide It is 0.4~5 micron fine that the calcium aqueous solution continuously generates substantial amounts of electronics and particle diameter by high-frequency ultrasonic anion generator The negative electricity particle of particle composition, negative electricity particle is sprayed into coal mine gob by driven fan, oxygen captures rapidly in goaf Electronics produces the substantial amounts of mainly anion radical and subparticle based on cloudy oxonium ion, keep " quasi-molecule warm-up movement " it is cloudy from Son group is with mineral subparticle as goaf air leaking is diffused into the coal petrography porous dehiscence gap of the diverse location in goaf.
- 2. a kind of ultrasonic atomization anion subparticle method for suppressing goaf coal spontaneous combustion according to claim 1, It is characterized in that：The mass percent concentration of calcium hydroxide aqueous solution is 0.1%.
- 3. a kind of ultrasonic atomization anion subparticle method for suppressing goaf coal spontaneous combustion according to claim 1, It is characterized in that：It is by driven fan that the anion radical based on cloudy oxonium ion and Separate Fine-grained Minerals particle injection colliery is mined out Area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711091548.1A CN107642373A (en) | 2017-11-08 | 2017-11-08 | A kind of ultrasonic atomization anion subparticle method for suppressing goaf coal spontaneous combustion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711091548.1A CN107642373A (en) | 2017-11-08 | 2017-11-08 | A kind of ultrasonic atomization anion subparticle method for suppressing goaf coal spontaneous combustion |
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| CN107642373A true CN107642373A (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711091548.1A Pending CN107642373A (en) | 2017-11-08 | 2017-11-08 | A kind of ultrasonic atomization anion subparticle method for suppressing goaf coal spontaneous combustion |
Country Status (1)
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306706A (en) * | 2013-06-13 | 2013-09-18 | 西安科技大学 | Device and process for preparing aerosol for preventing coal from spontaneous combustion |
| CN105240042A (en) * | 2015-09-23 | 2016-01-13 | 太原理工大学 | Method of using phase-changeable sols for preventing spontaneous combustion type fire disasters in coalmine goafs |
-
2017
- 2017-11-08 CN CN201711091548.1A patent/CN107642373A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103306706A (en) * | 2013-06-13 | 2013-09-18 | 西安科技大学 | Device and process for preparing aerosol for preventing coal from spontaneous combustion |
| CN105240042A (en) * | 2015-09-23 | 2016-01-13 | 太原理工大学 | Method of using phase-changeable sols for preventing spontaneous combustion type fire disasters in coalmine goafs |
Non-Patent Citations (2)
| Title |
|---|
| 杨俊哲等: "大规模负离子防灭火装置的研究和应用", 《第十届全国采矿学术会议论文集——专题二：安全技术及工程》 * |
| 陈晓坤等: "冷气溶胶阻化技术在煤自燃防治中的应用探讨", 《煤矿安全》 * |
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Application publication date: 20180130 |
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