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Artificial false bottom and manufacturing method

A technology of artificial false bottom and bottom plate, which is applied in earth square drilling, mining equipment, safety devices, etc., can solve the problems of potential safety hazards, and achieve the effects of low waste rock mixing rate, good economic benefits, and high mineral processing recovery rate

Pending Publication Date: 2019-12-06
CHINA MINMETALS CHANGSHA MINING RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The artificial false bottom in this patent has the following disadvantages: 1. It is composed of waste rails and waste materials, which has potential safety hazards; The top column needs to be reserved, and finally the top column needs to be recycled

Method used

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] refer to figure 1 with figure 2 : a kind of artificial false bottom, artificial false bottom is built in the roadway, artificial false bottom comprises artificial false bottom body and anchor rod 4, and described anchor rod 4 one ends are inserted on the side plate 3 of roadway, the other end of anchor rod 4 is connected with artificial false bottom Bottom bodies are connected by hanging bars 5, and the artificial false bottom body is located on the floor of the roadway, and the artificial false bottom body includes steel mesh and support columns 8 arranged below the steel mesh.

[0029] In this embodiment, roadways are various passages drilled between the ground surface and the ore body, which are used for ore transportation, ventilation, drainage, pedestrians, and various necessary preparations for new excavation of ore for metallurgical equi...

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Abstract

The invention discloses an artificial false bottom. The artificial false bottom is built in a roadway and comprises an artificial false bottom body and a fixing part, wherein one end of the fixing part is inserted into a side plate of the roadway, and the other end of the fixing part is connected with the artificial false bottom body through a connecting piece; the artificial false bottom body ispositioned on a bottom plate of the roadway, and a reinforcing mesh is arranged in the artificial false bottom body. The artificial false bottom can replace a top-bottom ore column in the mining process, so that the top-bottom ore column does not need to be reserved in the mining process, the top-bottom ore column does not need to be recovered in the later period, and as a result, the recovery process is saved; the artificial false bottom is made of high-grade concrete, so that the strength of the artificial false bottom is high, the mixing rate of waste rocks in the process of recovering thetop-bottom ore column is low, the mineral separation recovery rate is high, and the economic benefit is good; in addition, reinforcing steel bars and anchor rods are connected with the side plate of the roadway, so that the safety is high.

Description

technical field [0001] The invention relates to the technical field of mine filling and mining, in particular to an artificial false bottom and a manufacturing method thereof. Background technique [0002] In underground mining of metal mines, in order to ensure the safety of mining operations, it is usually necessary to leave top and bottom pillars to control the ground pressure, especially for mines mined by the open-field method, due to the large amount of pillars left, the ore loss rate is usually higher big. A large number of high-grade ore pillars cannot be developed and utilized, resulting in a great waste of valuable mineral resources, which is not in line with the sustainable development orientation. In an environment where resource reserves and grades of mining enterprises are declining and the mining industry is gradually declining, in order to ensure revenue, more and more mining enterprises have begun to pay attention to the recycling of high-grade residual ore...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21F15/02E21F15/00E21D20/00
CPCE21F15/02E21F15/00E21D20/003
Inventor 郑伯坤尹旭岩黄腾龙
Owner CHINA MINMETALS CHANGSHA MINING RES INST
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