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Slice mining technology and coal winning machine thereof

A layered mining and shearer technology, applied in cutting machinery, ground mining, earthwork drilling and mining, etc., can solve the problems of coal-rock mixed coal quality decline, huge cost of coal preparation, etc.

Inactive Publication Date: 2012-03-14
XIAN COAL MINING MACHINERY
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Problems solved by technology

[0004] In order to overcome the technical problem that coal seams and rock formations are mined together in the existing mining technology, the quality of coal mixed with rocks is reduced, and the cost of coal preparation is huge. Its general history solves the problem of coal-rock mixing in the mining process of coal seams with complex geological conditions such as interlayers, improves coal quality and reduces coal preparation costs

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  • Slice mining technology and coal winning machine thereof
  • Slice mining technology and coal winning machine thereof
  • Slice mining technology and coal winning machine thereof

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Embodiment Construction

[0018] In the above-mentioned long-arm mining technology in coal seams with complex geological conditions such as interlayers, there is a defect that the upper coal seam and the rock stratum are mined once the coal and rock are mixed, which causes the coal quality to decline, and additional coal preparation procedures are required in the subsequent process to increase the cost. . The invention proposes a layered mining technology. For coal seams with complex geological conditions with interlayers (rock formations or gangue), this technology proposes three-layer mining in one feed, such as figure 1 As shown, the coal seam with interbeds is regarded as three layers, the upper coal seam, the middle rock layer, and the lower coal seam. In one feed, the upper coal seam is mined first, the middle rock stratum is mined, and the lower coal seam is mined secondly. In this way, the coal seam and the rock stratum (that is, the gangue layer) are separated during the mining process, there...

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Abstract

The invention relates to a coal winning machine for a slice mining technology. The coal winning machine comprises a coal loading device. The coal loading device comprises a rotating seat, a coal loading plate and a hydraulic drive system. The coal loading device is rotatably fixed on a cutting head part of the coal winning machine by the rotating seat, and performs a free rotation movement by adopting a cutting drum arranged on the cutting head part as the center. The coal loading plate is rotatably fixed on the main body of the coal loading device. The hydraulic drive system concurrently drives the rotating seat and the coal loading plate to perform rotation movements.

Description

Technical field: [0001] The present invention relates to a layered mining technology for coal mines and a shearer used therein, in particular to a new layered mining technology derived from the current long-arm mining technology and a shearer used therein. Background technique: [0002] With the continuous improvement of fully-mechanized mining technology and the continuous improvement of fully-mechanized mining equipment, the fully-mechanized mining technology for medium-thick coal seams with full mining height and thick coal seams has become quite mature. The fully mechanized mining process is the comprehensive mechanized coal mining process. The production process of the fully mechanized mining face mainly includes multiple processes such as coal cutting, coal transportation, support, and treatment of goafs. The coal cutting, coal transportation, and support procedures are respectively Roller shearer, working surface bendable scraper conveyor, hydraulic support and other ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C41/18E21C25/06E21C25/62E21C25/68
Inventor 赵友军豆斌娄伶俐
Owner XIAN COAL MINING MACHINERY
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