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Top corner gas extraction device for coal mine coal-mining working face

A coal mining face and gas drainage technology, which is applied in the direction of pump devices, gas discharge, safety devices, etc., can solve the problems of gas accumulation, high gas concentration, high temperature and humidity, and achieve energy saving, increase safety factor, and reduce gas The effect of the probability of explosion

Active Publication Date: 2019-01-01
湖南省煤业集团嘉禾矿业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ventilation in this area is not good, the temperature and humidity are high, it is easy to accumulate the gas released at the intersection of the goaf and the mining face, and the gas concentration is high

Method used

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  • Top corner gas extraction device for coal mine coal-mining working face
  • Top corner gas extraction device for coal mine coal-mining working face
  • Top corner gas extraction device for coal mine coal-mining working face

Examples

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Embodiment

[0021] like Figure 1-3 As shown, a gas extraction device at the upper corner of a coal mining working face in a coal mine includes a casing 1, and a first cavity 2 and a second cavity 3 are arranged in the casing 1, and a discharge row is arranged in the first cavity 2. The air fan 4, the second cavity 3 is provided with an air intake fan 5, the central axis of the exhaust fan 4 and the air intake fan 5 both pass through the housing 1 and extend to the outside, and the outer wall of the housing 1 is fixedly connected with a double-axis motor 6. One output end of the biaxial motor 6 is connected to the exhaust fan 4 and the intake fan 5 through the transmission mechanism 14. The biaxial motor 6 can drive the exhaust fan 4 and the intake fan 5 to rotate. The drive shaft 16 that is coaxially fixedly connected with the output end of the biaxial motor 6, the end of the drive shaft 16 away from the biaxial motor 6 is coaxially fixedly connected with a first pulley 17, and the centr...

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Abstract

The invention belongs to the technical field of coal mines, and particularly relates to a top corner gas extraction device for a coal mine coal-mining working face. The top corner gas extraction device comprises a shell internally provided with a first cavity and a second cavity. An exhaust fan is arranged in the first cavity. The other output end of a double-axis motor is coaxially and fixedly connected with a transmission shaft. Two annular ventilating openings are formed in the side walls, away from a first opening and a second opening, of the shell. One end of a water pipe is fixedly connected with a spraying mechanism, and the other end of the water pipe is fixedly connected with a water pipe joint. A water pump is fixedly connected to the water pipe and fixedly connected with the shell. The input end of the water pump and the transmission shaft are coaxially and fixedly connected. The top corner gas extraction device has the advantages that top corner gas of the working face canbe extracted, meanwhile, fresh air can be delivered into a mine, water mist can be sprayed to increase humidity, and thus the danger of gas explosion is lowered; and one motor is adopted to drive multiple functions, and the energy saving effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of coal mines, and in particular relates to a gas drainage device at the upper corner of a coal mining working face in a coal mine. Background technique [0002] It is an area where humans mine coal resources in coal-rich mining areas, generally divided into underground coal mines and open-pit coal mines. When the coal seam is far away from the surface, it is generally selected to excavate the coal by digging the roadway underground, which is an underground coal mine. When the distance between the coal seam and the surface is very short, it is generally chosen to directly strip the surface soil layer to excavate coal, which is an open-pit coal mine. The vast majority of coal mines in my country are underground coal mines. Coal mines include large areas above and below ground and associated facilities. A coal mine is a reasonable space excavated by humans when excavating geological layers rich in coal, usu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F7/00E21F5/04F04D25/08F04D25/16
CPCE21F5/04E21F7/00F04D25/08F04D25/166
Inventor 许明
Owner 湖南省煤业集团嘉禾矿业有限公司
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