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Comprehensive mechanized coal mining method of steeply inclined and extremely thick coal seam planing conveyor

A comprehensive mechanized, extra-thick coal seam technology, applied in special mining, surface mining, earthwork drilling and mining, etc., can solve the problems that cannot be adopted and independent negative pressure ventilation and layout, so as to improve unit yield and efficiency, solve Coal mining method issues, the effect of ensuring safe and efficient mining

Inactive Publication Date: 2015-01-07
TIANDI SCI & TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the storage coal mining method has been banned by the state order, and the lane and pillar caving coal mining method cannot be adopted due to the inability to carry out independent negative pressure ventilation and the lack of two outlets
The horizontal segmental top-coal caving mining method cannot be adopted due to the thin coal seam and the inability to arrange two roadways on the same level
At present, there is no good method for effective mining

Method used

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  • Comprehensive mechanized coal mining method of steeply inclined and extremely thick coal seam planing conveyor
  • Comprehensive mechanized coal mining method of steeply inclined and extremely thick coal seam planing conveyor
  • Comprehensive mechanized coal mining method of steeply inclined and extremely thick coal seam planing conveyor

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Embodiment Construction

[0013] exist figure 1 In the plan view of , the top-coal caving hydraulic support (5) and the top-coal caving hydraulic support (6, 7) at both ends are arranged along the working face, and there is one top-coal caving hydraulic support (6, 7) at The quantity of support (5) is determined by the length of working face. The working face uses a planer to drop and transport coal, and the coal is loaded into the trough scraper conveyor (10). The cutting depth of one coal cutting cycle of the planer is 0.3m. After two cycles of cutting by the planer, Move the support once, and the moving step is 0.6m. After the support moves forward, the collapsed top coal is put into the iron chute (9) from the rear of the top coal caving hydraulic support (5, 6, 7) and transported out to the scraper conveyor (10) along the trough, where it is scraped along the trough. The slab conveyor (10) transports the coal out of the working face.

[0014] exist figure 2 In the shown embodiment, it can be ...

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Abstract

The invention provides a comprehensive mechanized coal mining method of a steeply inclined and extremely thick coal seam planing conveyor, and relates to a coal mining method of an inclined cutting segmented trend short-wall mining steeply inclined and extremely thick coal seam (the coal seam thickness is 6 to 12m). The method is called as an inclined cutting segmented planing conveyor top coal caving coal mining method. According to the method, the planing conveyor is adopted for coal falling and conveying in a working face, a top coal caving hydraulic support frame is used for supporting a top plate, and an iron sheet chute is used for realizing self sliding of fallen top coal. Therefore the comprehensive mechanized coal mining of the steeply inclined and extremely thick coal seam (6 to 12m) is realized.

Description

Technical field [0001] The invention relates to a coal mining method for mining steeply inclined extra-thick coal seams (coal seam thickness 6-12m) by oblique cutting, segmental and short-wall mining, which is called "oblique cutting and segmental planing and top coal caving coal mining method". This method adopts the planer to drop and transport coal in the working face, puts the top coal hydraulic support to support the roof, and the iron sheet chute slides down the top coal. In this way, comprehensive mechanized mining of steeply inclined and extra-thick coal seams (6-12m) can be realized. Background technique [0002] Coal mining methods commonly used in steeply inclined and extra-thick coal seams are: storage mining method, roadway and pillar top-coal caving mining method, and horizontal section top-coal caving mining method. Among them, the storage coal mining method has been banned by the state order, and the lane and pillar caving coal mining method cannot be adopte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21C41/16
CPCE21C41/16
Inventor 毛德兵黄志增王东攀王耀辉
Owner TIANDI SCI & TECH CO LTD
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