A complete set of equipment for non-gap cutting in the coal mining face of thin and extremely thin coal seams

Abstract

The invention relates to a thin and ultrathin coal seam coal mining face non-gap feeding complete device. The device comprises a coal cutter and a scraper conveyor. A coal cutter support trolley is arranged in a mechanical roadway and comprises a top support platform and a bottom bearing platform, and a support which is adjustable in height is arranged between the support platform and the bearing platform. A coal cutter roller end push unit is further arranged on the side of the support platform. The coal cutter support trolley is drawn by the scraper conveyor through a traction chain. By means of the complete device, the worker labor intensity can be reduced effectively, the process preparation link is reduced, the normal circulation rate is improved, the per unit area yield is improved greatly, the safety guarantee degree is improved, and the device is worth popularizing.

Description

technical field [0001] The invention relates to a kind of mining equipment, especially in the mining of thin coal seams and extremely thin coal seams, a complete set of mining equipment that can realize non-notch feeding in the general mining working face of a single-drum bottom-climbing shearer. Background technique [0002] Mechanized mining of thin and extremely thin coal seams has always been a technical problem plaguing my country's coal industry. At present, domestic research on the mechanized technology of coal mining in thin coal seams and its supporting facilities is far lower than the research on medium-thick and above coal seams. For a long time, thin coal seam mining has been difficult, inefficient, high cost, poor working environment, low per unit yield, high labor intensity, and lack of key technologies for mechanized mining of ultra-thin coal seams, has not been able to achieve real high yield and high efficiency. [0003] The main machinery used for mechaniz...

AI Technical Summary

Problems solved by technology

[0015] There is a large gap between the artificial gap coal removal, support and coal cutting process, which relatively restricts the implementation of subsequent processes, resulting in an increase in the cycle time of the mining face and a decrease in the regular cycle rate

[0016] 2. There are many process links

[0017] Using the traditional bottom-climbing coal mining process, there are many intermediate links, especially when there are blasting operations on the working face, the work of "one shot and three inspections", personnel evacuation, and blasting guards are added, which is time-consuming and labor-intensive

[0018] 3. High material consumption

[0020] 3. Security management is difficult

When the lower outlet is blasted, it is easy to cause damage due to improper protection

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