CN103790616A - Method for realizing chemical reaction to prevent coal from catching fire and extinguish fire in mining face by high-pressure nozzle atomization - Google Patents
Method for realizing chemical reaction to prevent coal from catching fire and extinguish fire in mining face by high-pressure nozzle atomization Download PDFInfo
- Publication number
- CN103790616A CN103790616A CN201310070159.6A CN201310070159A CN103790616A CN 103790616 A CN103790616 A CN 103790616A CN 201310070159 A CN201310070159 A CN 201310070159A CN 103790616 A CN103790616 A CN 103790616A
- Authority
- CN
- China
- Prior art keywords
- coal
- fire
- pressure nozzle
- chemical reaction
- float
- Prior art date
- 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.)
- Pending
Links
Abstract
The invention relates to a method for realizing chemical reaction to prevent coal from catching fire and extinguish fire in a mining face by high-pressure nozzle atomization. Saturated aqueous solution of calcium hydroxide is put in a high-pressure nozzle atomizer, ionized water of the saturated aqueous solution containing the calcium hydroxide forms an atomization state under the action of high-pressure nozzle atomization, and ion mist containing the calcium hydroxide is diffused onto float coal of a coal mine and reacts with carbon dioxide in air or carbon dioxide on the float coal to generate calcium carbonate, so that oxidation reaction of the coal is prevented.
Description
Technical field: a kind ofly realize at getting working face with high-pressure nozzle atomization 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 getting working face, 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 at getting working face the method that chemical reaction prevention coal catches fire and puts out a fire with high-pressure nozzle atomization.
Summary of the invention: a kind ofly realize 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 at getting working face with high-pressure nozzle atomization, 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 high-pressure nozzle atomization by the saturated aqueous solution that contains calcium hydroxide, fog state, water smoke is diffused into gaseous state shape on the float coal of getting working face, 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 at getting working face with high-pressure nozzle atomization 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 getting working face 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 nozzle atomizer, produce vaporific gas, by produced vaporific gas by diffusing on the float coal of getting working face and in crack, and at once with float coal on and in crack carbon dioxide reaction generate calcium carbonate film, a kind ofly realize at getting working face the method that chemical reaction prevents coal to catch fire and put out a fire with high-pressure nozzle atomization thereby realized.
Claims (1)
1. realize 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 with high-pressure nozzle atomization at getting working face 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 high-pressure nozzle atomization by the saturated aqueous solution that contains calcium hydroxide, fog state, water smoke is diffused into gaseous state shape on the float coal of getting working face, 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 |
|---|---|---|---|
| CN201310070159.6A CN103790616A (en) | 2013-02-23 | 2013-02-23 | Method for realizing chemical reaction to prevent coal from catching fire and extinguish fire in mining face by high-pressure nozzle atomization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310070159.6A CN103790616A (en) | 2013-02-23 | 2013-02-23 | Method for realizing chemical reaction to prevent coal from catching fire and extinguish fire in mining face by high-pressure nozzle atomization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103790616A true CN103790616A (en) | 2014-05-14 |
Family
ID=50666627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310070159.6A Pending CN103790616A (en) | 2013-02-23 | 2013-02-23 | Method for realizing chemical reaction to prevent coal from catching fire and extinguish fire in mining face by high-pressure nozzle atomization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103790616A (en) |
-
2013
- 2013-02-23 CN CN201310070159.6A patent/CN103790616A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103147786A (en) | Method for realizing chemical reaction to prevent coal fight catching and to extinguish fire on digging work surface by using high-pressure inert gas atomization | |
| CA2812278C (en) | New method for extinguishing fire | |
| AU2017404563B2 (en) | Physical-chemical composite inhibitor for controlling spontaneous combustion of low-rank coal and method of preparing and using same | |
| CN101766877B (en) | Inorganic salt type inhibitor for preventing and controlling spontaneous combustion of residual coal in goaf of coal mine | |
| IN2014DN01965A (en) | ||
| CN110129074B (en) | Inorganic salt-free radical quenching agent dual-inhibition coal spontaneous combustion fireproof material and preparation method thereof | |
| NO323306B1 (en) | Fire extinguishing agent, method of preparation and method of extinguishing fire | |
| RU2610120C2 (en) | Flame-extinguishing composition based on copper salts | |
| CN103806932A (en) | Method for realizing coal ignition prevention and extinguishment through chemical reactions in goafs by using high-pressure spray head atomization | |
| Haiqiang et al. | A good dry powder to suppress high building fires | |
| CN103790611A (en) | Method for realizing chemical reaction to prevent coal from catching fire and extinguish fire in coal face by high-pressure nozzle atomization | |
| CN103790621A (en) | Method for realizing chemical reaction to prevent coal from catching fire and extinguish fire in driving face by high-pressure nozzle atomization | |
| CN103790620A (en) | Method for realizing chemical reaction to prevent coal from catching fire and extinguish fire in fire area by high-pressure nozzle atomization | |
| CN103806929A (en) | Method for realizing coal ignition prevention and extinguishment through chemical reactions on mining faces by using high-frequency oscillation | |
| CN1730128B (en) | Highly effective (hydrated) oxide aqueous sol gel fire-extinguishing agent and application thereof | |
| CN103147784A (en) | Method for preventing coal ignition and extinguishing fire through chemical reaction achieved by high frequency oscillation in spontaneous ignition area | |
| CN203362213U (en) | Air pressing type explosive-proof opening device | |
| CN103790616A (en) | Method for realizing chemical reaction to prevent coal from catching fire and extinguish fire in mining face by high-pressure nozzle atomization | |
| CN103790614A (en) | Method of using high pressure inert gas atomization for preventing coal ignition and extinguishing fire through chemical reaction on coal faces | |
| CN103790615A (en) | Method of using high pressure inert gas atomization for preventing coal ignition and extinguishing fire through chemical reaction on heading faces | |
| CN103790619A (en) | Method of using high pressure inert gas atomization for preventing coal ignition and extinguishing fire through chemical reaction in fire area | |
| CN103790613A (en) | Method of using high frequency oscillation for preventing coal ignition and extinguishing fire through chemical reaction on coal faces | |
| CN103790612A (en) | Method of using high frequency oscillation for preventing coal ignition and extinguishing fire through chemical reaction in goafs | |
| CN103790609A (en) | Method of using high frequency oscillation for preventing coal ignition and extinguishing fire through chemical reaction in fire area | |
| CN103790610A (en) | Method of using high frequency oscillation for preventing coal ignition and extinguishing fire through chemical reaction on heading faces |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20140514 |