Ore drawing mining method for inclined layered solid ore deposit

A mining method and inclined layer technology, applied in ground mining, earth square drilling, underground mining, etc., can solve the problems of heavy mining workload and low mining rate, and achieve reduced cost input, lower ore body hardness, and lower roof The effect of the accident

Pending Publication Date: 2021-06-18
XIAN UNIV OF SCI & TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for mining an inclined layered solid deposit to so

Method used

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  • Ore drawing mining method for inclined layered solid ore deposit
  • Ore drawing mining method for inclined layered solid ore deposit
  • Ore drawing mining method for inclined layered solid ore deposit

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Embodiment

[0046] Embodiment A kind of ore-drawing and mining method of inclined layered solid ore deposit

[0047] The ore-drawing mining method of the inclined layered solid deposit, the technical process can be found in figure 1 , including the following steps, in order:

[0048] 1) Work surface layout

[0049]Select an inclined layered non-coal solid deposit with a dip angle of 35-65° and a thickness of 5-15 m (the ore body of the Jinning Phosphate Deposit in Kunming City, Yunnan Province has good continuity, the average thickness of the ore layer is 13.09 m, and the dip angle is 50° or so), refer to figure 2 and image 3 As shown in , taking the positional relationship between the two boundaries of the inclined ore body 5 parallel to the direction of the inclined ore body 5 and being close to the ground and away from the ground as left and right, the relative positional relationship between the inclined ore body 5 and the goaf 4 is Before and after, the return airway 1 is excav...

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Abstract

The invention discloses an ore drawing mining method for an inclined layered solid ore deposit. The ore drawing mining method comprises the following steps of firstly arranging an air return roadway, a transportation roadway and a pseudo inclined working face, carrying out advanced presplitting blasting, then utilizing a mining machine to mine, propelling along the trend of an inclined ore body, carrying out ore falling and transporting to the ground, sequentially moving and supporting an ore drawing bracket after the mining is finished, then drawing and transporting the ore on a top layer ore body, and finally processing the goaf by using a filling method. The mining process can be propelled along the trend of an ore bed, the arrangement of the working face is simple, the false bevel angle of the working face is 20-30 degrees, the mining preparation engineering is simplified, the mining preparation cutting engineering amount is reduced, the mining efficiency is improved, the occurrence of roof accidents is reduced, and the problems of large mining preparation workload and low mining rate in an existing non-coal solid ore deposit mining technology are solved. The mining method is suitable for the non-coal solid ore deposit with the dip angle of 35-65 degrees and the thickness of 5-15 m.

Description

technical field [0001] The invention belongs to the technical field of ore deposit mining, and relates to a mechanized mining method for a solid ore bed, in particular to an ore-drawing mining method for an inclined layered solid ore bed. Background technique [0002] Non-coal mines are an important part of my country's mineral resources, and their mining targets are all metal and non-metal deposits except coal, oil and natural gas. Mineral resources are non-renewable resources. The country pays more and more attention to the development and protection of mineral resources, which makes enterprises continuously improve their processes, reduce costs and increase efficiency under the premise of ensuring safety. At present, the mining method of non-coal deposits in China is still dominated by open-pit mining, but with the development of industry and science and technology, the demand for minerals has increased rapidly, and the depth of existing mines has become larger and larger...

Claims

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Application Information

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IPC IPC(8): E21C41/22
CPCE21C41/22
Inventor 解盘石黄宝发伍永平王红伟罗生虎高喜才曽佑富郎丁张艳丽窦娟张浩张颖异吴少港屈利利
Owner XIAN UNIV OF SCI & TECH
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