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A method of ore recovery in a closed-pit open-pit mine

An ore and open-pit technology, which is applied in the field of ore recovery in closed-pit open-pit mines, can solve the problems of increasing development projects, increasing the amount of rock stripping, and low efficiency, and achieves the effects of reducing the mining cycle, shortening the mining cycle, and reducing the number of times

Active Publication Date: 2016-10-19
ZHUOLIWEI BEIJING TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] The closest solution is to expand the mining boundary, increase the amount of rock stripping, and increase the development project to recover the remaining ore, which has a long period and low efficiency.
Or carry out multiple regional recovery, the same period is long and the efficiency is low

Method used

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  • A method of ore recovery in a closed-pit open-pit mine
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  • A method of ore recovery in a closed-pit open-pit mine

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Embodiment Construction

[0031] The specific implementation of the ore recovery method of a closed pit open-pit mine according to the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0033] see figure 1 Shown, the embodiment of the present invention a kind of closed-pit open-pit mine ore recovery method, comprises steps:

[0034] S1. Determine the corresponding mining method according to the occurrence conditions of the recoverable ore.

[0035] Generally, the occurrence conditions of the remaining ore in metal mines usually have a certain angle on the slope, ranging from gentle slope to steep slope, and the thick...

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Abstract

The invention discloses a method for stoping pit-closed surface mine ore, which relates to the technical field of surface mine ore mining and aims to shorten a stoping period and increase production efficiency; the method disclosed by the invention comprises the following steps: determining a corresponding stoping method according to a occurrence condition of a stoping ore; carrying out stoping construction according to the stoping method; carrying out regional or one-time inter-hole elementary-error interval explosion to the pit-closed surface mine stoping ore according to a predetermined explosion sequence; and discharging the ore taken down by the regional or one-time inter-hole elementary-error interval explosion; and the method is applied to stope the pit-closed surface mine ore.

Description

technical field [0001] The invention relates to the technical field of ore mining in open-pit mines, in particular to an ore recovery method in closed-pit open-pit mines. Background technique [0002] The metal open-pit mines that have been closed or close to them have been in service for more than 15 years or longer. At the beginning of their mining, due to the backward overall technical level of domestic mining and beneficiation, the low level of equipment and institutional factors, etc. Due to the constraints of various factors, the design, layout and gradual implementation of the overall mine plan are inherently insufficient. As a result, a part of the ore is more or less abandoned during the mining process before it is closed. The development of technology, the shortage of resources, the rising price, and the redevelopment and utilization of this part of the ore are urgently placed in front of the enterprise. The enterprise is subject to the influence of various factors...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C47/00F42D3/00
CPCE21C41/30
Inventor 薛世忠
Owner ZHUOLIWEI BEIJING TECH
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