Cutting head type shortwall coal-winning machine and comprehensive mechanized coal mining technology

Abstract

The invention discloses a cutting head type shortwall coal-winning machine and comprehensive mechanized coal mining technology. A tunneller type cutting device is used, and the coal-winning machine is a hydromechatronics coal-winning machine which is in electric traction, electrically drags a cutting head, carries out hydraulic drive to change a cutting arm pitch angle and swings inside and outside the working face. The coal-winning machine mainly comprises a machine body, a cutting device, a travelling mechanism, a coal shovelling device, an auxiliary device, an auxiliary hydraulic system and an electrical control system. The coal-winning technology uses technical equipment, such as a coal-winning machine, a hydraulic support, a scraper conveyor, an elevating conveyor, a breaker, a crossheading belt, an advance support hydraulic support and the like. The technical flow is as follows: the coal-winning machine retracts to the working surface tail, a scraper-trough conveyer is pushed tocoal wall, coal is cut to the machine head, the machine is retracted, coal is cleaned, and the support is pulled. The coal-winning machine has compact structure, small volume and weight, strong adaptability and convenient installation and transportation, can solve a series of problems of four low, three high, two long and one poor in small and medium coal mining technology and provides matching coal mining technology.

Description

technical field [0001] The invention belongs to coal mine underground mining equipment and mining technology, and is a cutting head type short-wall coal shearer and comprehensive mechanized coal mining technology especially suitable for medium and small coal mines. Background technique [0002] At present, the existing coal mine underground mining equipment and mining technology, for large and medium-sized coal mine underground mining equipment, mainly include large-scale electric or hydraulic traction comprehensive shearer, transportation, hydraulic support, auxiliary transportation equipment, etc., large electric or hydraulic traction comprehensive Coal shearer, comprehensive coal shearer integrates the functions of cutting, loading, walking, and operation, and is mainly used for comprehensive tunneling equipment for cutting underground coal or semi-coal and rock roadways with arbitrary cross-sections. Large and medium-sized coal mines mainly use longwall mining technology...

AI Technical Summary

Problems solved by technology

[0013] The object of the present invention aims at the problems existing in the existing mining equipment and coal mining technology of medium and small coal mines, and provides a kind of equipment suitable for medium and small coal mines, which has compact structure, small volume and weight, strong adaptability, and is easy to install and transport. , can solve the four lows (low resource recovery rate, low output ratio, low block rate, low work efficiency), three highs (high investment, high energy consumption, high risk) and two long-term problems existing in the existing medium and small coal mining technology (Long preparation period, long moving time), one difference (poor adaptability) and other outstanding problems of cutting head short wall shearer and comprehensive mechanized coal mining technology

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