Mining method with residual ore recovery function

A mining method and residual ore technology, applied in the field of residual ore recovery mining method, can solve the problems of large surface impact, low safety, low production efficiency, etc., and achieve the effects of saving costs, improving safety, and increasing production capacity

Inactive Publication Date: 2015-09-09
WUHAN UNIV OF SCI & TECH
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Problems solved by technology

[0004] The invention provides a residual ore recovery mining method, which solves the technical problems of low safety, large impact on the s

Method used

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  • Mining method with residual ore recovery function
  • Mining method with residual ore recovery function
  • Mining method with residual ore recovery function

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Embodiment Construction

[0021] The embodiment of the present invention provides a mining method for ore recovery, which solves the technical problems of low safety, low recovery rate, and low efficiency in the prior art of residual ore recovery, and achieves the improvement of residual ore recovery safety, recovery rate and recovery. efficiency effect.

[0022] In order to solve the above technical problems, the general idea of ​​the technical solution provided by the embodiment of the present application is as follows:

[0023] A residual ore recovery mining method, comprising:

[0024] Retain security pillars with a thickness of 5-15m in the hanging wall of the residual ore;

[0025] The ore body is divided into continuous mining units, and the next mining unit is mined after the mining and filling are completed;

[0026] Wherein, the mining unit comprises three continuous ore layers, i.e. an upper stratum, an intermediate stratum and a lower stratum; the upper stratum is preferentially mined, an...

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Abstract

The invention belongs to the technical field of mining, and further discloses a mining method with a residual ore recovery function. The mining method comprises the following steps: reserving a safety pillar which is in the thickness range of 5-15 m on the hanging side of the residual ore; dividing the ore body into continuous stoping units, completing stoping and filling, and then stoping the next stoping unit, wherein the stoping units comprise three continuous ore beds, namely the higher slice, the middle slice and the lower slice; preferably stoping the higher slice, and then sequentially stoping the middle slice and the lower slice; under the situation that complete stoping is finished, performing filling; after stoping the ore body of the higher slice, adopting concrete spraying support, anchor-plate retaining or anchor-plate retaining and bolt-connected chain support for supporting the pit, and utilizing the feed path as a compensation space, stoping the ore bodies of the two lower slices from the other side cross heading, after the ore bodies of the higher slice, the middle slice and the lower slice are mined, performing filling. The mining method with the residual ore recovery function is a safe and efficient filling mining method, can realize efficient recovery of residual ore, and can ensure both the mining efficiency and the safety.

Description

technical field [0001] The invention relates to the technical field of mining, in particular to a residual ore recovery mining method. Background technique [0002] With the development of mining and dressing technology, some unmined ore bodies with low grade in the past, or ore bodies with complex geological conditions, now have the mining conditions and can be mined and recovered. With the increasing consumption of mineral resources, the mineral resources are getting less and less, so the limited mineral resources should be used rationally. [0003] There are many mining methods for recovering residual ore, mainly including sub-section caving method without pillar, room-and-pillar method and filling method. The non-pillar sub-level caving method has a large production capacity and a high degree of mechanization, but it has a great impact on the ground surface and cannot control the deformation of the ground surface. The room-and-pillar method has extremely strict require...

Claims

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Application Information

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IPC IPC(8): E21C41/16
Inventor 王平王明旭曹华兵陈顺满
Owner WUHAN UNIV OF SCI & TECH
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