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A method of using methane oxidizing bacteria to treat local gas accumulation in tunneling face

A technology for excavating working face and methane oxidizing bacteria, which can be used in gas emission, earth-moving drilling, mining equipment, etc., and can solve problems such as gas accumulation

Inactive Publication Date: 2020-06-09
CHINA UNIV OF MINING & TECH (BEIJING)
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

This method utilizes biological treatment technology and is combined with the actual project site, which can economically and effectively solve the problem of gas accumulation above the tunneling face, and is of great significance to the practical application of biological treatment of gas in coal mines

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  • A method of using methane oxidizing bacteria to treat local gas accumulation in tunneling face

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Embodiment Construction

[0013] Step S101 includes the following content: draw a square with a side length of 16 cm with white chalk at the upper coal wall where the gas is easy to accumulate, and record the four vertices clockwise as points G, H, I, and J sequentially. Connect the diagonals of the square GHIJ with white chalk and intersect at point L. The characteristics of the drilled hole are: use a coal mine down-the-hole drilling machine to drill a cylindrical hole at point L, take point L as the center of the circular surface of the hole, the diameter of the hole is between 80mm and 10mm, and the hole depth is between 100mm and 120mm The distance between adjacent holes should be between 100mm and 150mm, and the inclination angle of the top surface of the hole should be less than 5 degrees. The angle between the sides of the hole and the top surface should be between 85 degrees and 95 degrees.

[0014] The bacteria solution carrying frame described in the step S102 includes a carrier fixing fram...

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Abstract

The invention relates to a method for treating local coal mine gas accumulation on an excavating working surface using methane-oxidizing bacteria, and belongs to the technical field of coal mine localgas prevention and treatment. The method comprises the steps that the methane-oxidizing bacterial fluid and yellow mud are mixed with air to form a three-phase viscous state, the methane-oxidizing bacterial fluid and the yellow mud are smeared on a coal wall where the coal mine gas accumulates, coal mine gas accumulating holes are drilled in the part where excessive coal mine gas surges, a bacterial fluid bearing frame is produced, three-phase bacterial fluid is smeared in the hole, methane-oxidizing bacterial fluid is added to a bacterial fluid groove in the bacterial fluid bearing frame, and the problem of local coal mine gas accumulation is solved from multiple levels. The method has the advantages the defects of an biological coal mine gas treatment technology are overcome, innovationto a higher extent is achieved, and the method is suitable for the application on a coal mine site.

Description

technical field [0001] The method belongs to the technical field of local gas prevention and control in coal mines, uses the characteristics of microorganisms, combines with engineering practice, and solves the problem of local gas accumulation in tunneling working faces, and is an innovation to the existing local gas prevention technology in coal mines. Background technique [0002] Existing methods for preventing and controlling local gas accumulation in excavation working faces mostly use technical methods such as drilling gas drainage, local air induction, and filling methods, but drilling gas drainage and local ventilation require laying more pipelines, and need to For regular inspection, commissioning, and maintenance, the filling method is only to use sand to fill the places where gas is easy to accumulate, and only passively eliminate the conditions for gas accumulation, while the biological control technology using methanotrophs can eliminate the need for complex lin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21F7/00
CPCE21F7/00
Inventor 杨小彬裴艳宇刘吟苍冷浩然
Owner CHINA UNIV OF MINING & TECH (BEIJING)