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Strip mining method of metal ore body horizontal pillar

A technology of ore bodies and pillars, which is applied in the field of effective recovery and utilization of horizontal pillars, can solve the problems of poor effect and low resource utilization rate, and achieve the effects of good safety, low loss rate and low dilution rate

Active Publication Date: 2021-06-08
安徽铜冠产业技术研究院有限责任公司
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is that the resource utilization rate of the horizontal pillar mining method is low and the effect is poor. The present invention proposes a strip mining method of the horizontal pillar of the metal ore body that not only ensures safety but also recovers resources as much as possible.

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  • Strip mining method of metal ore body horizontal pillar
  • Strip mining method of metal ore body horizontal pillar
  • Strip mining method of metal ore body horizontal pillar

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Embodiment Construction

[0015] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments without creative efforts by those skilled in the art fall within the protection scope of the present invention.

[0016] Such as Figure 1-4 Shown, the scheme of the present invention is as follows: (1), according to the height of horizontal ore pillar 10, divide the mining stratification that height is 3m from bottom to top, the top part stays the thickness that is not less than 2m apart from filling body 8 and does not mine, domestic level The thickness of the ore is mostly about 12m, that is, it is divided into three mining layers; (2), along the direction of the ore body, the mining unit is divided according to the effecti...

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Abstract

The invention discloses a strip mining method for a horizontal ore pillar of a metal ore body. The beneficial effect of the invention is that the horizontal ore pillar is mined by the strip method, the mining engineering can well control the upper and lower boundaries of the ore body, and the dilution rate is low; the horizontal ore pillar The thickness is small, layered mining is adopted to control the height of the void, and the safety is good; there is no secondary ore pillar between the mining unit and the block, and the loss rate is small; using the characteristics of horizontal ore pillar layering, different bars are used Width, taking into account efficiency and safety, the effect is good.

Description

technical field [0001] The invention relates to the field of underground mining of metal ore deposits, and is a method for effectively recovering and utilizing the horizontal ore pillars reserved for early mining of metal ore deposits. Background technique [0002] Underground mining of metal deposits is divided into two different mining sequences: bottom-up mining and top-down mining. In the past, the mining of metal deposits was limited by the insufficient production efficiency of mining equipment or the urgent need for metal raw materials in the national economy. In terms of initial investment and putting into production as soon as possible, most of them adopt a top-down mining sequence, which inevitably leaves a large number of horizontal ore pillars. The unfilled horizontal pillars in the upper and lower gobs of the pillars serve as isolation protection and cannot be mined, while the filling treatment in the upper and lower goafs creates conditions for the recovery of h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/22E21F15/00E21F15/04
CPCE21C41/22E21F15/00E21F15/04
Inventor 郑攻关方志甫桂旺华袁世伦方胜勇程战明谢经鹏覃星朗韦章能
Owner 安徽铜冠产业技术研究院有限责任公司
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