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Method for planning dump of strip mine of ultra-thick inclined coal seam and efficiently recycling end slope resources

A recycling method and technology of dumping site, which can be applied in open-pit mining, earthwork drilling, mining equipment, etc., and can solve problems such as the impact of mine production.

Active Publication Date: 2021-06-29
CHINA UNIV OF MINING & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing method of recovering coal resources in the lower part of the side wall is relatively traditional and easily affects mine production

Method used

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  • Method for planning dump of strip mine of ultra-thick inclined coal seam and efficiently recycling end slope resources
  • Method for planning dump of strip mine of ultra-thick inclined coal seam and efficiently recycling end slope resources
  • Method for planning dump of strip mine of ultra-thick inclined coal seam and efficiently recycling end slope resources

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Embodiment Construction

[0032] Embodiments of the present invention will be further described below in conjunction with accompanying drawings:

[0033] The method for planning the dump site 2 of the huge thick inclined coal seam open-pit mine and the resource efficient recovery method of the side wall 1 adopts the side wall 1 coal shearer 3 to mine the state of the huge thick coal seam open-pit mine after the edge mining is completed, The 1-1 part of the end side coal step is recovered by means of side mining; the huge thick coal seam is far greater than 4.60, so the method adopted and the change of the stope space position of the open-pit mine are different from the prior art. Similarly, the planning of the dump 2 refers to changing the dump 2 of the open-pit mine from the previous straight working line to the current broken line, providing a site for the mining of the end side 1 coal shearer 3; Efficient recovery of side 1 resources means that after side-by-side mining of side side 1 coal resources...

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Abstract

The invention provides a method for planning a dump of a strip mine of an ultra-thick inclined coal seam and efficiently recycling end slope resources, and is applicable to the field of open-pit coal mining. The method comprises the following steps: firstly, performing slope mining; secondly, planning the mined dump, and changing the dump of the strip mine from a previous straight working line into a current broken line working line to provide a site for mining of an end slope coal mining machine; thirdly, arranging the end slope coal mining machine on a step of the dump close to an end slope to mine the strip mine of the ultra-thick coal seam in a state after the slope mining is finished, wherein the mining direction of the coal mining machine is perpendicular to the advancing direction of the strip mine; and fourthly, filling a roadway after end slope coal resources are recycled, wherein after the filling is finished, a lagging dumping area follows up the width of the roadway. According to the method, the site is provided for the end slope coal mining machine through lagging dumping; the method is simple in step and convenient to implement; the end slope coal resources of the end slope can be recycled as much as possible, and normal production of other parts of the mine is not influenced.

Description

[0001] technical background [0002] The invention relates to a method for dump site planning and high-efficiency recovery of end-side resources, and is especially suitable for a method for dump site planning and high-efficiency recovery of end-side resources in open-pit mines with thick inclined coal seams used in the field of coal open-pit mining. Background technique [0003] The output of my country's open-pit coal mines accounts for about 15%-17% of the country's total coal output. As of the end of November 2019, the national open-pit coal mine production capacity is about 950 million tons, accounting for 18.6% of the national coal mine production capacity. Xinjiang is an important coal production and reserve area in my country. The proven reserves have reached 2.2 trillion tons, and about 40% of them have good open-pit mining conditions, of which more than 90% of coal storage and mining are located in northern Xinjiang. In 2018, the actual output of open-pit coal minin...

Claims

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Application Information

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IPC IPC(8): E21C41/28E21C47/02E21F17/00
CPCE21C41/28E21C47/02E21F17/00
Inventor 周伟田涯朱晓寒张传伟陆翔李兆霖栾博钰王志明敖忠晨覃怀锐
Owner CHINA UNIV OF MINING & TECH
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