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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Problems solved by technology

The existing method of recovering coal resources in the lower part of th

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...

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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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