A green and efficient transportation method for underground coal mines

Abstract

The invention discloses a novel, efficient and environment-friendly underground transportation method for coal mines to realize efficient transportation and environment-friendly transportation of coal during coal mining. On a mining working surface, coal mined from a coal wall by a coal mining machine falls into a scraper conveyor and is transferred to a bridge type stage loader through the scraper conveyor, a secondary crusher is arranged on the bridge type stage loader, and the coal is transferred to fall onto a mobile tail after being crushed, then transported to a tubular belt conveyor or a turnable tubular belt conveyor of a ginney from a gate road through a telescopic tubular belt conveyor, transported to a cross-hole, then transferred to a tubular belt conveyor of a main haulage roadway, transported to an underground car yard and then transported out of a coal mine through a main shaft. According to the method, in an underground complex environment, transfer points of the conveyors can be reduced, the cost can be reduced, and transportation requirements can be met; large-volume and efficient transportation can be realized; closed transportation is realized, the coal cannot fall off easily, dust cannot be produced easily, potential risks are reduced, the underground environment is improved, and environment-friendly transportation is realized.

Description

technical field [0001] The invention belongs to the technical field of underground coal mine transportation, and in particular relates to a green and efficient underground transportation method for coal mines. Background technique [0002] In recent years, with the gradual increase of coal mining, the requirements for the underground transportation system are getting higher and higher, and the underground transportation method is mainly mechanical transportation. Mechanical transportation is further divided into rail transportation and conveyor transportation. Rail transportation is the most widely used mode of transportation in mines. It mainly uses equipment to pull mine cars and transport coal, slag, materials and equipment back and forth on the rails. Conveyor transportation is divided into two types: belt conveyor and scraper conveyor. The belt conveyor is mainly laid in the main road and the roadway of the mining area, and undertakes the transportation task of coal a...

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Problems solved by technology

[0003] The above transportation methods can also meet the transportation needs, but there are some deficiencies; first, the large-capacity belt conveyor occupies a large area, which has high requirements for the small underground environment and is difficult to realize; second, the ordinary belt conveyor Conveyor transportation is not easy to achieve turning transportation, especially for more complex coal mines, so it has to be reloaded, and there are many reloading points; Third, ordinary belt conveyors are transported openly, and coal is easy to fall off, and the dust is relatively large. many

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