Coal mine gas explosion burst treatment method and its matched gas dissolving and elimineting agent

A coal mine gas and solvent elimination technology, which is applied in mining equipment, earthwork drilling, safety devices, etc., to achieve the effects of strong operability, saving man-hours, and broad application prospects

Inactive Publication Date: 2008-01-16
洛阳保矿安矿山设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Yeast, more preferably yeast powder

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1, the method for controlling coal mine gas explosion outburst of the present invention is: on March 29, 2003, water was injected at A working face. The specifications of the working surface are: 2.2 meters high, 2.4 meters wide at the top, and 3 meters wide at the bottom. A total of 5 holes are drilled, and the hole numbers are A, B, C, D, and E. Before hole A was injected with gas decontamination agent, the gas concentration was 96%, and the gas emission rate was 12 cubic meters per hour. After injecting gas decontamination agent, the gas concentration was 18%, and the gas emission rate was 0.5 cubic meters per hour. The amount of gas decontamination agent injected into a single hole is 5Kg. 0.2-0.5% gas after blasting in tunneling face. Holes B, C, D, and E have the same effect. The gas dissolving agent used in the method of the present invention is an aqueous solution of vinegar and yeast powder. The content of acetic acid in the vinegar is 3.5%, and ...

Embodiment 2

[0033]Embodiment 2, the coal mine gas explosion outburst treatment method of the present invention is: on April 3, 2003 at 10:00 shift in the B working face water injection situation, the roadway specification of the excavation working face is the same, before the injection of gas disintegrant, the gas in hole A is 94%, and the gas in hole B is 94%. Kong Gas 94%, C Kong Gas 96%, D Kong Gas 95%, E Kong Gas 93%. The gas discharge rate of hole A is 21.2 cubic meters per hour, the gas discharge rate of hole B is 22.4 cubic meters per hour, the gas discharge rate of hole C is 18 cubic meters per hour, and the gas discharge rate of hole D is 19.5 cubic meters per hour hour, the E hole gas ejection volume is 21.7 cubic meters per hour. After injecting the gas-disinfectant water, hole A has a gas concentration of 19%, and a gas ejection of 0.9 cubic meters. The gas concentration of hole B is 19%, and the gas ejected is 0.95 cubic meters. The gas concentration in hole C is 18.5%, and...

Embodiment 3

[0034] Embodiment 3, the coal mine gas explosion outburst control method of the present invention is: on April 3, 2003 at 2:00 on the C working face, the test records are as follows: hole A is injected with a gas disintegrant, hole B is injected with water without injecting a gas disintegrant, and hole C is injected with a gas disintegrant. Gas decontaminant, D hole is injected with water without gas decontaminant, E hole is injected with gas decontaminant. A, C, and E hole gas concentration before injecting gas decontamination agent is 90-97%. After injecting the gas disintegrant, the gas concentration is between 17 and 20%. Before hole A, C and E are injected with gas decontamination agent, the gas ejection volume is 25-18 cubic meters, and after injection of gas decontamination agent, the gas ejection volume is 0.5-0.9 cubic meters. The gas ejection volume of hole B and D hole before water injection is 25-18 cubic meters, and the gas injection volume after water injection ...

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PUM

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Abstract

This invention relates to a method and a gas dissolvant for the frequent gas explosions in coal mine. Its procedures are as following: the gas dissolvent and water are poured in turn into the coal seams containing gas. The gas dissolvent is a kind of water solution made up of acetum and yeast which selective weight ratio is 1000:5-15. The acetum is preferred to be replaced by vinegar of the same acetum. After the vinegar is added into the yeast, their dehydro-ratio is 2-8 times as heavy as the vinegar. The advantages are safety efficient, more feasible and harmless to human body.

Description

technical field [0001] The invention relates to a coal mine gas control technology, in particular to a coal mine gas explosion outburst control method and a matching gas dissolving agent. Background technique [0002] There are five major disasters in coal mines: water, fire, electricity, gas, and roof. In particular, gas explosions have the most serious casualties and are the most terrifying. However, no one has been able to control the high-concentration gas in coal mines since the opening of coal mines in my country. This is an inestimable loss to my country's coal miners and national property. No one has been able to fill this scientific and technological gap for many years. [0003] At present, the methods of controlling coal mine gas in my country include: [0004] 1. Mainly ventilation: for coal miners to work normally underground. First of all, ventilation is the main method, which has two advantages: (1), reducing the underground gas concentration. (2) Transport ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F5/00
Inventor 高传友
Owner 洛阳保矿安矿山设备有限公司
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