CN103806931A - Method for realizing coal ignition prevention and extinguishment through chemical reactions in goafs by using high-pressure inert gas atomization - Google Patents
Method for realizing coal ignition prevention and extinguishment through chemical reactions in goafs by using high-pressure inert gas atomization Download PDFInfo
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- CN103806931A CN103806931A CN201310070207.1A CN201310070207A CN103806931A CN 103806931 A CN103806931 A CN 103806931A CN 201310070207 A CN201310070207 A CN 201310070207A CN 103806931 A CN103806931 A CN 103806931A
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- coal
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- calcium hydroxide
- chemical reaction
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Abstract
A saturated aqueous solution of calcium hydroxide is placed into a high-pressure inert gas atomizer, ionized water containing the saturated aqueous solution of the calcium hydroxide is changed into an atomized state under the effect of high-pressure inert gas atomization, and ion fog containing the calcium hydroxide is diffused onto float coal of coal mines through diffusion and reacts with carbon dioxide in the air or carbon dioxide on the float coal to produce calcium carbonate, so that oxidizing reactions of the coal are prevented.
Description
Technical field: a kind ofly realize in goaf with the atomization of high pressure noble gas that chemical reaction prevention coal catches fire and the method for put out a fire belongs to the security fields in pit mining coal process, be specially adapted to prevention and control goaf, spontaneous combustionof coal and colliery internal and external reasons fire under coal mine.
Background technology: by retrieval comprehensively both at home and abroad, domestic main anti-extinguishing method is that oxygen barrier, water put out etc. at present, its common shortcoming and defect is that fire-fighting efficiency is low, not science, unreasonable, the process of processing chemical combustion by the method for physics, for overcoming the deficiency of above-mentioned existence, we have invented and have a kind ofly realized the method that chemical reaction prevention coal catches fire and puts out a fire in goaf with the atomization of high pressure noble gas.
Summary of the invention: a kind ofly realize in goaf with the atomization of high pressure noble gas that chemical reaction prevention coal catches fire and the method for put out a fire is applicable to recovery process under coal mine and prevents spontaneous combustionof coal to cause fire, ensure the technological means of safety of coal mines, it is characterized in that: the saturated aqueous solution of calcium hydroxide is excited into water smoke by the atomization of high pressure noble gas by the saturated aqueous solution that contains calcium hydroxide, fog state, water smoke is diffused into gaseous state shape on the float coal in goaf, and with float coal on carbon dioxide moment of adsorbing carry out chemical reaction and generate calcium carbonate, and be filled in the surface of float coal and the crack of float coal, thereby with solid-state shape, the carbon dioxide on float coal is solidified into calcium carbonate, and encase the surface of coal, stop airborne oxygen composition and coal surface to carry out oxidation reaction, thereby realize the method for catching fire and putting out a fire with chemical reaction prevention coal.
A kind ofly realize in goaf with the atomization of high pressure noble gas that chemical reaction prevention coal catches fire and the method for putting out a fire compared with prior art has the following advantages:
1, by the chemical reaction of spontaneous combustionof coal and burning, change Combined extinguishing into by simple physics fire extinguishing, effect is remarkable, and preventive effect has reached once prevention, the effect of throughout the year no longer getting angry.
2, fire extinguishing procedure water smoke specific area is large, the physical characteristic of more easily absorbing heat, lowering the temperature, more have free goaf float coal and absorbing carbon dioxide and the calcium hydroxide in the water smoke generation calcium carbonate that reacts, and be solidificated in the surface of combustible, put out a fire and the double action of oxygen barrier thereby play.
3, the easier combination of sour gas that the alkalescence of calcium hydroxide and combustion process generate, thus play the effect of smoke elimination, cooling, depositing dust, improve visibility, light-permeable degree in disaster area, be conducive to rescue and relief work.
4, can eliminate the toxic and harmful composition in flame range, improve rescue and relief work environment, reduce injury and loss to staff.
5, raw amount and the content of carbon monoxide can be reduced, growing amount and the content of carbon dioxide, sulfur dioxide, hydrogen sulfide can be neutralized and reduce.
6, be conducive to resume production fast.
The specific embodiment: first calcium oxide powder is dissolved in light water, after clarifying, saturated calcium hydroxide aqueous solution after clarification is injected to high pressure noble gas atomizer, produce vaporific gas, by produced vaporific gas by diffusing on the float coal in goaf and in crack, and at once with float coal on and in crack carbon dioxide reaction generate calcium carbonate film, a kind ofly realize the method that chemical reaction prevents coal to catch fire and put out a fire in goaf with the atomization of high pressure noble gas thereby realized.
Claims (1)
1. realize in goaf with the atomization of high pressure noble gas that chemical reaction prevention coal catches fire and the method for put out a fire is applicable to recovery process under coal mine and prevents spontaneous combustionof coal to cause fire for one kind, ensure the technological means of safety of coal mines, it is characterized in that: the saturated aqueous solution of calcium hydroxide is excited into water smoke by the atomization of high pressure noble gas by the saturated aqueous solution that contains calcium hydroxide, fog state, water smoke is diffused into gaseous state shape on the float coal in goaf, and with float coal on carbon dioxide moment of adsorbing carry out chemical reaction and generate calcium carbonate, and be filled in the surface of float coal and the crack of float coal, thereby with solid-state shape, the carbon dioxide on float coal is solidified into calcium carbonate, and encase the surface of coal, stop airborne oxygen composition and coal surface to carry out oxidation reaction, thereby realize the method for catching fire and putting out a fire with chemical reaction prevention coal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310070207.1A CN103806931A (en) | 2013-02-23 | 2013-02-23 | Method for realizing coal ignition prevention and extinguishment through chemical reactions in goafs by using high-pressure inert gas atomization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310070207.1A CN103806931A (en) | 2013-02-23 | 2013-02-23 | Method for realizing coal ignition prevention and extinguishment through chemical reactions in goafs by using high-pressure inert gas atomization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103806931A true CN103806931A (en) | 2014-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310070207.1A Pending CN103806931A (en) | 2013-02-23 | 2013-02-23 | Method for realizing coal ignition prevention and extinguishment through chemical reactions in goafs by using high-pressure inert gas atomization |
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| CN (1) | CN103806931A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2802495C1 (en) * | 2023-01-16 | 2023-08-29 | Федеральное государственное казенное учреждение "12 Центральный научно-исследовательский институт" Министерства обороны Российской Федерации | Method for lowering the temperature and sorption of combustion and explosion products in mine workings and tunnels and a device for its implementation |
-
2013
- 2013-02-23 CN CN201310070207.1A patent/CN103806931A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2802495C1 (en) * | 2023-01-16 | 2023-08-29 | Федеральное государственное казенное учреждение "12 Центральный научно-исследовательский институт" Министерства обороны Российской Федерации | Method for lowering the temperature and sorption of combustion and explosion products in mine workings and tunnels and a device for its implementation |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140521 |