CN103147786A

CN103147786A - 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

Info

Publication number: CN103147786A
Application number: CN2013100980645A
Authority: CN
Inventors: 杜志刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-11
Filing date: 2013-03-11
Publication date: 2013-06-12

Abstract

The invention relates to a method for realizing chemical reaction to prevent coal fight catching and to extinguish fire on a digging work surface by using high-pressure inert gas atomization. Saturated calcium hydroxide water solution is placed into a high-pressure atomization device, the high-pressure atomization effect is utilized for forming ion water of the saturated calcium hydroxide water solution into an atomization state, and in addition, the ion fog containing the calcium hydroxide is diffused onto floating coal of the coal mine through the diffusion and takes reaction with carbon dioxide in the air or carbon dioxide on the floating coal to generate calcium carbonate, so the oxidation reaction of the coal is prevented.

Description

A kind of atomizing with the high pressure noble gas realizes at driving face the method that chemical reaction prevention coal catches fire and puts out a fire

Technical field: a kind ofly realize that chemical reaction prevention coal catches fire and the method for put out a fire security fields in belonging to pit mining coal process with high pressure noble gas atomizing at driving face, be specially adapted to prevention and control driving face, spontaneous combustionof coal and colliery internal and external reasons fire under coal mine.

Background technology: by retrieval comprehensively both at home and abroad, at present domestic main anti-extinguishing method is that oxygen barrier, water put out etc., its common shortcoming and defect is that fire-fighting efficiency is low, not science, unreasonable, the process of processing chemical combustion with the method for physics, for overcoming the deficiency of above-mentioned existence, we have invented a kind of the atomizing with the high pressure noble gas and have realized at driving face the method that chemical reaction prevention coal catches fire and puts out a fire.

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 that under coal mine, recovery process prevents spontaneous combustionof coal to cause fire with high pressure noble gas atomizing at driving face, the technological means of guarantee work safety of coal mine, it is characterized in that: the saturated aqueous solution of calcium hydroxide is excited into water smoke by the saturated aqueous solution that the atomizing of high pressure noble gas will contain calcium hydroxide, the fog state, water smoke is diffused on the float coal of driving face with the gaseous state shape, and with float coal on carbon dioxide moment of adsorbing carry out chemical reaction and generate calcium carbonate, and be filled in the crack of the surface of float coal and 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 the method that realization is caught fire and put out a fire with chemical reaction prevention coal.

A kind ofly realize that at driving face chemical reaction prevention coal catches fire and the method for putting out a fire compared with prior art has the following advantages with high pressure noble gas atomizing:

1, with 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, the driving face float coal is free and absorbing carbon dioxide and calcium hydroxide in the water smoke generation calcium carbonate that reacts is more arranged, 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 generates of the alkalescence of calcium hydroxide and combustion process, thus play the effect of smoke elimination, cooling, depositing dust, improve visibility, light-permeable degree in the disaster area, be conducive to rescue and relief work.

4, can eliminate the interior toxic and harmful composition of flame range, improve the rescue and relief work environment, reduce injury and loss to the staff.

5, can reduce giving birth to of carbon monoxide and measure and content, can neutralize and reduce growing amount and the content of carbon dioxide, sulfur dioxide, hydrogen sulfide.

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 high pressure noble gas atomizer, produce vaporific gas, with the vaporific gas that produces by on the float coal that diffuses into driving face and crack, and at once with float coal on and in the crack carbon dioxide reaction generate the calcium carbonate film, thereby realized a kind ofly realizing at driving face the method that chemical reaction prevents coal to catch fire and put out a fire with the atomizing of high pressure noble gas.

Claims

1. realize that chemical reaction prevention coal catches fire and the method for put out a fire is applicable to that under coal mine, recovery process prevents spontaneous combustionof coal to cause fire with high pressure noble gas atomizing at driving face for one kind, the technological means of guarantee work safety of coal mine, it is characterized in that: the saturated aqueous solution of calcium hydroxide is excited into water smoke by the saturated aqueous solution that the atomizing of high pressure noble gas will contain calcium hydroxide, the fog state, water smoke is diffused on the float coal of driving face with the gaseous state shape, 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 first 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 the method that realization is caught fire and put out a fire with chemical reaction prevention coal.