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Coal mine gas pumping apparatus

A technology for gas and coal mines, applied in the field of mine gas pumping devices, can solve problems such as reducing gas content

Inactive Publication Date: 2006-10-18
山东中科纳米管材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the design of the present invention is to provide a kind of can overcome above-mentioned defect, and its main characteristic is before mining coal mine and in the process of coal mining, just the device that the coal mine gas extraction of the present invention design is passed on the coal seam and the surface layer above the coal seam , to pump out part of the gas in the coal seam, reduce the gas content in the coal seam, and reduce the probability of safety accidents. The gas extraction pipe can be composed of one or more plastic pipes. During use, if one of them breaks , the others can still be used, effectively avoiding the defect that the gas extraction pipeline is broken and blocked and unable to extract the gas, and the gas is drained in advance to ensure the safety of tunneling and mining and reduce the danger of production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 represents a kind of coal mine gas pumping device according to the present invention, which is composed of a tubular gas pumping pipe (1), and is characterized in that the gas pumping pipe (1) passes through the surface layer (2) and is inserted into the coal seam (3), One or more holes (4) are arranged on the tube wall of the lower end of the exhaust pipe (1).

Embodiment 2

[0023] The difference between embodiment 2 and embodiment 1 is that the device for extracting gas from a coal mine is characterized in that the upper end of the air extraction pipe (1) is connected to the air extraction end (5) of the air extraction pump (6). The pipe (7) is sleeved on the periphery of the exhaust pipe (1), and the lower ends of the exhaust pipe (1) and the peripheral casing (7) have one or more holes (4) respectively.

Embodiment 3

[0024] The difference between embodiment 3 and embodiment 2 is that the suction pipe (1) is made up of 5 pipes, the sleeve pipe (7) is enclosed within the periphery of the suction pipe (1), and the 5 heels of the suction pipe (1) are parallel to each other.

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Abstract

The improved coal mine gas pumping apparatus consists of gas pumping pipe inserted over or into the coal bed, and the gas pumping pipe has one or several holes on the wall of the lower end and consists of one or several pipes for reliable operation. The present invention can pump out partial gas from coal mine to lower gas content in coal mine and ensure the mining safety.

Description

technical field [0001] The invention is a technical improvement to a mine gas pumping device, and its name is a coal mine gas pumping device. Background technique [0002] In the existing technology, the gas removal in coal mines is to first open the well and dig the roadway, and then discharge the gas. However, gas explosion and gas outburst may occur when the roadway is opened or coal mining. Solving the problem of gas removal is mine safety. The primary problem of the gas pumping device has become an unavoidable problem for people. Contents of the invention [0003] The purpose of the design of the present invention is to provide a kind of can overcome above-mentioned defect, and its main characteristic is before mining coal mine and in the process of coal mining, just the device that the coal mine gas extraction of the present invention design is passed on the coal seam and the surface layer above the coal seam , to pump out part of the gas in the coal seam, reduce th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F7/00
Inventor 李寿山徐伟杰王玉忠
Owner 山东中科纳米管材有限公司