Steeply inclined coal seam strike advancing false dipping fully-mechanized coal mining

Abstract

The invention discloses steeply inclined coal seam strike advancing false dipping fully-mechanized coal mining. A hydraulic support, a connector, an end support, a coal mining machine, a scraper conveyer, an air way, an upper outlet, a belt transporter tunnel and a lower outlet are included. The scraper conveyer is laid in the false dipping direction. The hydraulic support is laid in the direction of a mining work face. A lag part is provided with a rock blocking device. A telescopic beam of the hydraulic support and the front end of a base are designed to be inclined edges according to false depression angles. The hydraulic support and the scraper conveyer are connected through a flat lug. The coal mining machine is installed on the scraper conveyer in a sliding mode. The end support is distributed on the lower outlet. The hydraulic support is moved from the air way to the belt transporter tunnel. The scraper conveyer is pushed as a whole, and in the moving process of the scraper conveyer, a roller of the coal mining machine is intercepted in a coal wall at the same time. The steeply inclined coal seam strike advancing false dipping fully-mechanized coal mining has the advantages that rib spalling of the coal wall is effectively controlled, a bottom plate slides, the problems about tilting prevention and sliding prevention of a steeply inclined fully-mechanized coal mining device and rock flying prevention of a goaf are well solved, production efficiency is high, safety is good, and labor intensity of workers is greatly lowered.

Description

technical field [0001] The invention relates to a coal mining technology in a coal mine, in particular to a pseudo-inclined fully-mechanized mining that advances the trend of a steeply inclined coal seam. Background technique [0002] Comprehensive mechanized mining has the characteristics of high safety, low labor intensity, and high production efficiency. The existing comprehensive mechanized mining technology has been widely used in 450-550 steeply inclined coal seams and achieved good economic benefits. When the coal seam is above 550°, due to the large inclination angle of the coal seam, it is very difficult to handle the anti-slip and anti-falling of coal mining equipment such as support, coal mining, and transportation in the stope, which seriously restricts the performance of the equipment, and in such a large coal seam In the angle of inclination, the problem of gangue and flying gangue on the working face is prominent, and how to ensure the safety of the sta...

AI Technical Summary

Problems solved by technology

[0002] Comprehensive mechanized mining has the characteristics of high safety, low labor intensity, and high production efficiency. The existing comprehensive mechanized mining technology has been widely used in 450-550 steeply inclined coal seams and achieved good economic benefits. When the coal seam is above 550°, due to the large inclination angle of the coal seam, it is very difficult to handle the anti-slip and anti-falling of coal mining equipment such as support, coal mining, and transportation in the stope, which seriously restricts the performance of the equipment, and in such a large coal seam In the angle of inclination, the problem of gangue and flying gangue on the working face is prominent, and how to ensure the safety of the staff is also a very difficult problem. In order to solve the mining problem of steeply inclined coal seams above 550, the steeply inclined coal mining face is often arranged as a pseudo-slope However, at present, the pseudo-inclination coal mining face produced by pseudo-inclination fully mechanized mining technology is extremely rare in China, and the existing methods used in the pseudo-inclination coal mining face are mainly the pseudo-inclination section dense pillar coal mining method and pseudo-inclined flexible cover support coal mining method. These two coal mining methods have high labor intensity, low production efficiency, poor safety, and slipping coal is easy to cause eye blockage, resulting in unsmooth air passages. These two mining methods are different from advanced Compared with the comprehensive mechanized mining method, the disadvantages are very prominent. Therefore, inventing a method of advancing pseudo-inclined fully mechanized mining in steeply inclined coal seams is of great significance for promoting comprehensive mechanized mining of steeply inclined coal seams and improving coal mine production efficiency.

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