Coal mine underground gas cyclic pumping and exhaust system

A technology for gas and coal mines, applied in the field of underground gas circulation and drainage systems in coal mines, can solve problems such as increased danger and explosion of electrical equipment, and achieve the effect of reducing the possibility of carbon monoxide poisoning

Active Publication Date: 2019-12-13
HENAN UNIV OF URBAN CONSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcomings in the prior art that electric equipment such as water pumps and motors need to be placed at the gas extraction point, and failure of the electric equipment can easily cause explosions and increase the risk. system

Method used

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  • Coal mine underground gas cyclic pumping and exhaust system
  • Coal mine underground gas cyclic pumping and exhaust system
  • Coal mine underground gas cyclic pumping and exhaust system

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0029] refer to Figure 1-5 , a coal mine underground gas circulation extraction system, including an exhaust pipe 5 fixedly inserted in the soil layer 2 and extending into the mine 1, an exhaust fan 6 and a blower 3 are fixedly installed above the soil layer 2, and the exhaust The pipe 5 is fixedly connected to the exhaust fan 6, and the air intake pipe 4 is fixedly inserted in the exhaust pipe 5. The upper end of the air intake pipe 4 passes through the side wall of the exhaust pipe 5 and is connected to the blower 3. One end of the inner shaft is symmetrically inserted and communicated with two exhaust branch pipes 10, and one end of the air intake pipe 4 located ...

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Abstract

The invention discloses a coal mine underground gas cyclic pumping and exhaust system which comprises an exhaust pipe, wherein the exhaust pipe is fixedly inserted and arranged in a soil and rock layer and extends into a mine; a gas inlet pipe is fixedly inserted and arranged in the exhaust pipe; and two exhaust branch pipes are symmetrically inserted and arranged at one end, positioned in the mine, of the exhaust pipe in a communicating way. Air circulation power is provided by an exhaust fan and a blast blower; both the exhaust fan and the blast blower are positioned on the ground outside the mine, so that the overhauling is convenient; when faults and the like occur, no influence can be generated in the mine; through the exhaust pipe, the exhaust branch pipes and gas inlet branch pipes,cyclic gas flow is formed in the mine; the gas exhaust speed is accelerated; through a gas inlet mechanism, a gas suction mechanism and air pipes, cyclic gas flow is formed in each region, so that the gas exhaust speed is further accelerated; the possibility of carbon monoxide poisoning of constructors is reduced through the gas inlet height of the gas inlet mechanism; impurities in gas are filtered through a dust filtering box; and the pipeline and exhaust fan blockage is avoided.

Description

technical field [0001] The invention relates to the field of coal mine mining safety, in particular to an underground gas circulation extraction system in coal mines. Background technique [0002] Coal mining needs to open a mine underground. When mining coal in the mine, there will be gas gas entering the mine through the coal seam, and the gas contains carbon monoxide gas, which is toxic and easily poses a threat to the life of the miners. And the gas in the gas Methane, etc., when the concentration reaches a certain level, it is easy to burn and explode, causing mine mining accidents. Therefore, in the process of coal mining, it is necessary to pump the gas in the mine to avoid the increase of the internal gas concentration. [0003] In the patent document with the patent application number 201811484832.X, a "quick extraction device for underground gas fire prevention in coal mines" is proposed, which includes an air inlet pipe and an exhaust pipe. The rear end of the pi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F7/00F04D25/16E21F5/00B01D50/00
CPCE21F7/00F04D25/166E21F5/00B01D50/20
Inventor 贾炳万祥云黄战峰田好敏王洪义娄全曹树蒙王宇航
Owner HENAN UNIV OF URBAN CONSTR
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