Coal mining complete set of equipment and method for cutting without gaps in coal mining face

Abstract

The invention relates to a coal mining face non-gap feeding coal cutting complete device and a feeding method. The complete device comprises a coal cutter and a scraper conveyor. A coal cutter support trolley is further 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 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. The feeding steps comprise that the coal cutter descends to cut through the coal wall and descends continuously to the coal cutter support trolley, the roller is pushed, and the coal cutter is moved to complete feeding. By means of the complete device, the worker labor intensity is reduced, 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 mining equipment and a mining method, in particular to a complete set of mining equipment in a coal mine and a cutting method for a shearer on the coal wall. Background technique [0002] Mechanized mining of thin and extremely thin coal seams has always been a technical problem that plagues my country's coal industry. At present, domestic research on mechanized coal mining technology and supporting facilities for thin coal seams is far lower than that on medium thick and above coal seams. For a long time, thin coal seams have been difficult to mine, with low efficiency, high costs, poor working conditions, low yields, high labor intensity, and the lack of key technologies for mechanized mining of extremely thin coal seams, which has failed to achieve real high production and efficiency. [0003] The main machinery used in the mechanization of thin coal seams and ultra-thin coal seams includes the mining of unmanned working faces w...

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

Images