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Agent, device and technology for high-speed oxygen reduction in coal mine

An oxygen-reducing and rapid technology, applied in the separation of dispersed particles, chemical instruments and methods, separation methods, etc., can solve the problems of gas accumulation, gas-coal oxidation and spontaneous combustion, and achieve easy processing, avoid gas explosion, and quickly reduce oxygen content. Effect

Active Publication Date: 2012-02-15
CCTEG SHENYANG RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technical process effectively solves the problem that ventilation and gas emission (or drainage) may easily cause coal oxidation and spontaneous combustion, while controlling air leakage may easily cause gas accumulation

Method used

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  • Agent, device and technology for high-speed oxygen reduction in coal mine
  • Agent, device and technology for high-speed oxygen reduction in coal mine
  • Agent, device and technology for high-speed oxygen reduction in coal mine

Examples

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no. 1 example

[0020] A rapid oxygen-reducing agent for underground coal mines, which comprises a main agent pyrogallic acid, an auxiliary agent potassium hydroxide, and water, and the ratio is that the concentration of pyrogallic acid is 0.2 mol / kg, and the concentration of potassium hydroxide is 0.2 mol / kg. is 0.6 mol / kg. Among them, the dosage of main agent pyrogallic acid is 139kg, auxiliary agent potassium hydroxide is 185kg, water is 5192kg, and the preparation is 5.5m 3 rapid oxygen reducer for underground coal mines;

[0021] A kind of rapid oxygen reduction device under the coal mine that uses, see figure 1 , figure 2 , which consists of an underground rapid oxygen reducing agent batching and stirring device, an underground rapid oxygen reducing agent atomizing device and an oxygen measuring device. The batching and mixing device of the rapid oxygen reducing agent in the coal mine is composed of the explosion-proof switch 4 of the mixer and the stirring explosion-proof motor 3 d...

no. 2 example

[0026] A rapid oxygen-reducing agent for underground coal mines, which comprises a main agent pyrogallic acid, an auxiliary agent sodium hydroxide, and water, and the ratio is that the concentration of pyrogallic acid is 0.2 mol / kg, and the concentration of sodium hydroxide is 0.2 mol / kg. is 0.6 mol / kg. Among them, the dosage of main agent pyrogallic acid is 139kg, auxiliary agent sodium hydroxide is 132kg, water is 5245kg, and the preparation is 5.5m 3 rapid oxygen reducer for underground coal mines;

[0027] A kind of rapid oxygen reduction device under the coal mine that uses, see figure 1 , figure 2, which consists of an underground rapid oxygen reducing agent batching and stirring device, an underground rapid oxygen reducing agent atomizing device and an oxygen measuring device. The batching and mixing device of the rapid oxygen reducing agent in the coal mine is composed of the explosion-proof switch 4 of the mixer and the stirring explosion-proof motor 3 drives the ...

no. 3 example

[0032] A rapid oxygen-reducing agent for underground coal mines, which comprises a main agent of sodium bis-sulfite, an auxiliary agent of sodium hydroxide, and water, and the ratio is that the concentration of bis-sulfite is 0.2 mol / kg, and the concentration of sodium hydroxide is 0.4 mol / kg. Among them, the amount of bis-linked sodium sulfite is 288kg, sodium hydroxide is 132kg, water is 7860kg, and the preparation is 8.3m 3 rapid oxygen reducer for underground coal mines;

[0033] A kind of rapid oxygen reduction device under the coal mine that uses, see figure 1 , figure 2 , which consists of an underground rapid oxygen reducing agent batching and stirring device, an underground rapid oxygen reducing agent atomizing device and an oxygen measuring device. The batching and mixing device of the rapid oxygen reducing agent in the coal mine is composed of the explosion-proof switch 4 of the mixer and the stirring explosion-proof motor 3 drives the blade mixer 2 with the liqu...

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Abstract

The invention belongs to the technical field of prevention and control of fire hazards and gas disasters in a coal mine, and discloses an agent for high-speed oxygen reduction in a coal mine. When a main agent is pyrogallic acid, an adjuvant is potassium hydroxide or sodium hydroxide. When a main agent is sodium hydrosulfite, an adjuvant is sodium hydroxide. The invention also discloses a device for high-speed oxygen reduction in a coal mine. The device for high-speed oxygen reduction in a coal mine comprises a stirring apparatus of the agent for high-speed oxygen reduction in a coal mine, anatomizing apparatus of the agent for high-speed oxygen reduction in a coal mine, and an oxygen detection apparatus. The invention also discloses a technology for high-speed oxygen reduction in a coalmine. Through the technology for high-speed oxygen reduction in a coal mine, an oxygen reducing rate reaches 0.99% per minute. The device for high-speed oxygen reduction in a coal mine has a reasonable design, is easy for operation, is suitable for downhole operation, and is easy for processing. The technology for high-speed oxygen reduction in a coal mine has simple processes, and solves the downhole fire hazard and gas calamity control problems that oxygen supply in a goaf is improved because of ventilation reinforcement and gas discharge, and thus a natural fire hazard happens easily; and if air leak is controlled, gas accumulation is caused and a gas blast danger level is improved.

Description

technical field [0001] The invention belongs to the technical field of coal mine fire and gas disaster prevention and control, and in particular relates to a coal mine rapid oxygen reducing agent, an oxygen reducing device and a process. Background technique [0002] In coal mine goafs and other areas with poor wind flow, there are double hidden dangers of gas accumulation and spontaneous combustion, and the control methods of the two hidden dangers often conflict with each other, making it extremely difficult to control. If ventilation is enhanced to discharge gas, it will increase the oxygen supply in the goaf, which is likely to cause spontaneous combustion; if the air leakage is controlled, it will cause gas accumulation and increase the risk of gas explosion. This is a problem that is difficult to solve in coal mine safety production. [0003] Under the condition that goaf fire and gas hazard coexist, the current control methods at home and abroad mainly adopt methods s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/18B01D53/78
Inventor 杨广文王昌斌李来源张福成刘志忠艾兴姜进军张永明段西凯
Owner CCTEG SHENYANG RES INST