Dust removal method and device for ground horizontal well of coal mine roadway driving face

Abstract

The invention discloses a dust removal method and device for a ground horizontal well of a coal mine roadway driving face. The method comprises the steps that firstly, the ground horizontal well is reversely designed along a to-be-driven roadway; secondly, directional drilling of the ground horizontal well is conducted on a coal seam, and an easily-cut hole protection screen pipe is put into a horizontal section of the ground horizontal well and provided with holes; thirdly, water is injected into the ground horizontal well from the ground in a pressurized mode, and the water is injected into the coal seam through the holes of the hole protection screen pipe; and finally, coal mine roadway driving face driving is conducted, and when the driving face reaches the tail end of the horizontal section, a dust removal system arranged on the ground is started to pump and discharge dust generated by the driving face. According to the dust removal method and device for the ground horizontal well of the coal mine roadway driving face, the problems that the dust causes safety production of the driving face and worsens the working environment are solved, power noise is reduced, the construction efficiency of the driving face is improved, the health of underground constructors is protected, and the requirements for comprehensive dust prevention, safety, economy, energy conservation and environmental protection of the driving face are met.

Description

technical field [0001] The invention belongs to the technical field of dust prevention in coal mines, and in particular relates to a method and a device for removing dust from horizontal wells on the surface of coal mine roadway excavation working faces. Background technique [0002] As the degree of mechanization of coal mines is significantly improved, the amount of dust generated during underground mining operations has also increased sharply, seriously threatening the safety of coal mine production and the health of operators. Coal mining and rock cutting are most likely to cause excessive dust concentration in front of the roadheader. At present, the pressure fan is mainly used to connect the air cylinder to the forward circuit to ventilate and remove dust. At the same time, the water curtain is used to reduce dust at the back of the roadway excavation face. . [0003] In addition, there are also some technologies that use negative pressure drainage to remove dust, su...

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Problems solved by technology

[0005] In order to solve the above problems, the present invention proposes a dust removal method and device for ground horizontal wells in coal mine roadway excavation working face, which solves the problems that existing dust removal methods and devices need to work underground, are easily affected by the space of underground roadways, and reduce coal mining efficiency.

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