A Continuous Mining Method for Side Coal in Large Dip Thick Coal Seam

Abstract

The invention belongs to the technical field of coal mining methods, and in particular relates to a continuous mining method for side coal in a thick coal seam with a large dip angle in an open-pit coal mine. The coal seam is divided into several panels along the direction of inclination, as the working area, and the stepped type is used to ensure the space required for the end-side coal shearer, the fast-link belt transportation unit, the stepping platform, the temporary coal storage bin, and the foreign transport vehicle . Then, after the flat plate of the steps is arranged, the end-side coal mining machine is changed from the traditional inclination of the coal seam to the mining tunnel along the direction of the coal seam, forming "opening the panel from the bottom to the top, pushing from the top to the bottom, and penetrating from the inside to the outside." The overall layout of "mining", the number of mining tunnels in a single panel, the height and depth of mining tunnels are determined by the thickness of the coal seam. The invention can effectively solve the problem of insufficient climbing ability of the continuous coal miner when it tends to mine the coal seam with a large dip angle, and the purpose of safe mining can be achieved only by stripping off a part of the top rock strata of the step panels.

Description

Technical field [0001] The present invention belongs to the technical field of coal coal, and in particular, the continuous mining method of the open coal mining coal in the open coal mine. Background technique [0002] At present, the world has more than 8 billion tons in the world, of which open-air mining accounts for more than 60%, and some countries are even as high as 90%. In recent years, my country's open-air coal mines have been rapidly developed. The proportion of coal production accounts for about 4% of the national coal production is around 16% in 2018, and the sustainable and healthy development of the respective provinces and even the national economy has Important strategic status and significance. The inclined coal seam angle of the open-air coal mine is generally 10 ° ~ 45 °. For the current mining technology level and mining equipment, it is generally used in partitioning, and the intra-cross-mining craft and longitudinal mining process. . However, due to the li...

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Problems solved by technology

[0004] The present invention provides an open-pit coal mine for the problems of difficult mining, high coal loss rate, poor production safety, high labor intensity, high stripping ratio, difficult discharge of stripped objects, and poor mining benefits caused by the large inclination angle of buried deep coal seams. Continuous Mining Method of Side Coal in Large Inclined Thick Coal Seam

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