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Underground coal mine fire preventing and extinguishing material and using method thereof

A fire prevention and coal mine technology, applied in fire prevention equipment, fire prevention, dust prevention, etc., can solve problems such as unsatisfactory application effect of ammonium bicarbonate gel, affect fire prevention effect, pollute underground environment, etc., and improve fire prevention operation effect , the effect of extinguishing is ideal, and the effect of ensuring production safety

Inactive Publication Date: 2015-12-09
CCTEG CHINA COAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because ammonium bicarbonate gel will decompose ammonia gas at high temperature, which has obvious ammonia smell and pollutes the underground environment. Moreover, more importantly, the decomposition of ammonium bicarbonate gel will greatly affect its fluidity, water retention and cooling. and other properties, which seriously affect the fire prevention and extinguishing effect, therefore, the application effect of ammonium bicarbonate gel in coal mine fire prevention and extinguishing operations is not ideal
[0005] In summary, there is no fire extinguishing material with strong fluidity and excellent performance in covering, filling, water retention and cooling in the prior art.

Method used

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  • Underground coal mine fire preventing and extinguishing material and using method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The coal mine underground fire-proofing material contains water glass, sodium metaaluminate and water, water glass accounts for 2-3.5 parts (weight), sodium metaaluminate accounts for 1.5-2.5 parts, water accounts for 95-96 parts (weight) .

[0032] The method for preventing and extinguishing fires in underground coal mines uses the above-mentioned anti-fire-extinguishing materials in underground coal mines to prevent and extinguish fires, comprising the steps of:

[0033] (a) On the ground of the mine, set up water glass solution preparation station 1 and sodium metaaluminate solution preparation station 2, and install sodium metaaluminate gel preparation station 3 in the mine where spontaneous combustion has occurred or there is a potential spontaneous combustion area near the roadway , the water glass solution preparation station 1 and the sodium metaaluminate solution preparation station 2 are connected to the sodium metaaluminate gel preparation station 3 through t...

Embodiment 2

[0040] In the described coal mine underground fire extinguishing material, water glass accounts for 2.5-3.5 parts (weight), sodium metaaluminate accounts for 1.5-2.5 parts (weight), and water accounts for 95-96 parts (weight).

[0041] The method for preventing and extinguishing fires in underground coal mines uses the above-mentioned anti-fire-extinguishing materials in underground coal mines to prevent and extinguish fires. The steps are basically the same as in Embodiment 1, except for the following two points:

[0042] In step (c), the water glass solution is prepared by the water glass solution preparation station 1, water glass accounts for 2.5-3.5 parts (weight), water accounts for 68 parts (weight), and is passed through the sodium metaaluminate solution preparation station (2) prepare sodium metaaluminate solution, wherein, sodium metaaluminate accounts for 1.5-2.5 parts (weight), water accounts for 27-28 parts (weight);

[0043] In the sodium metaaluminate gel formed...

Embodiment 3

[0045] In the described coal mine underground fire prevention material, water glass accounts for 2.7 parts (weight), sodium metaaluminate accounts for 1.5-2.3 parts (weight), and water accounts for 95-95.8 parts (weight).

[0046] The method for preventing and extinguishing fires in underground coal mines uses the above-mentioned anti-fire-extinguishing materials in underground coal mines to prevent and extinguish fires. The steps are basically the same as in Embodiment 1, except for the following two points:

[0047] In step (c), the water glass solution is prepared by the water glass solution preparation station 1, water glass accounts for 2.7 parts (weight), water accounts for 68 parts (weight), and is prepared by the sodium metaaluminate solution preparation station 2 Go out sodium metaaluminate solution, wherein, sodium metaaluminate accounts for 1.5-2.3 parts (weight), and water accounts for 27-27.8 parts (weight);

[0048] In the sodium metaaluminate gel formed in step ...

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Abstract

The invention discloses an underground coal mine fire preventing and extinguishing material and method. The underground coal mine fire preventing and extinguishing material comprises, by weight, 2 parts to 3.5 parts of water glass, 1.5 parts to 2.5 parts of sodium metaaluminate and 95 parts to 96 parts of water. Under the condition that it is ensured that the fire preventing and extinguishing material has the enough fluidity, the water-retaining property of the material can be effectively improved, the underground coal mine fire preventing and extinguishing work effect can be greatly improved, and the coal mine production safety can be forcefully ensured.

Description

technical field [0001] The invention relates to an underground coal mine fire prevention and extinguishing material and its application method. Background technique [0002] An important restrictive factor in coal seam mining is coal spontaneous combustion, which causes mine fires that seriously affect the normal production of coal mines. First of all, in the process of coal spontaneous combustion, a large amount of CO will be produced, which can poison people to death and seriously affect the production safety of coal mines; second, when coal spontaneous combustion is serious, it will cause the coal mining face to stop production, seriously affecting the production efficiency of coal mines; When the spontaneous combustion of the coal body is very serious, a large fire area will be formed in the coal mining face, the coal mining face will have to be closed, a large number of equipment cannot be removed, and can only be left in the fire area, and the coal mine will suffer ser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/00E21F5/02
Inventor 姚海飞周霖吴海军张体镇郑忠亚霍永金孙喜贵张群徐长富
Owner CCTEG CHINA COAL RES INST
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