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High-yield and low-cost subsequent filling mining method for underground mine

A filling mining and mine technology, applied in underground mining, surface mining, filling and other directions, can solve the problems of increased cost, complicated process, hindering the increase of production capacity of underground mines, etc., to reduce filling costs, simplify procedures, and reduce filling processing costs. Effect

Active Publication Date: 2014-07-09
SINOSTEEL MAANSHAN INST OF MINING RES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the mining method of open-pit mining followed by filling has been tested in China, and remarkable achievements have been made, mainly including the method of open-pit mining followed by filling in the downward large hole stage, the method of segmented open-pit mining followed by filling mining, and the method of mine mining followed by filling mining. methods, etc., but there are still limitations on production capacity and production cost. The main reason is that the stope adopts two-step mining. After the first-step mining, it is necessary to use high-strength tailings to cement the goaf to create conditions for the second-step mining. This results in increased cost and complicated process, which hinders the further increase of production capacity of underground mines

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  • High-yield and low-cost subsequent filling mining method for underground mine
  • High-yield and low-cost subsequent filling mining method for underground mine
  • High-yield and low-cost subsequent filling mining method for underground mine

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Embodiment Construction

[0032] In order to further describe the present invention, the subsequent filling mining method of the present invention suitable for large-scale underground mine mining will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0033] Depend on figure 1 The shown principle and layout longitudinal projection diagram of the subsequent filling mining method suitable for large-scale underground mine mining of the present invention figure 2 The principle of the subsequent filling mining method suitable for large-scale underground mine mining shown in the present invention and the bottom structure layout diagram show that the method of the present invention divides the underground thick and large mine section combination into a plurality of panels 1, and divides each panel into 3 panels. For ~6 continuous stopes 2, a panel interval column 3 is drawn on the edge of the panel area 1, and a panel top column 4 and a panel bottom column 5...

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Abstract

The invention discloses a subsequent filling mining method for a large-scale underground mine. Each panel is partitioned into 3-6 continuous stopes (2) and a panel barrier (3); a panel top column (4) and a panel bottom column (5) are distributed in the vertical direction; ores (7) in panel stopes (2) fall into a stope trench (11) by blasting; a carry scraper is used for loading ores in an ore outlet feeding channel (12) through an ore outlet laneway (10), transporting the ores to a strike drive (8), and unloading the ores into a pass (14); after stoping and ore discharge are completed, milltailings are filled into a blank region through a filling laneway (15) to form a panel filling body (6); after the filling into the panel stopes (2) is completed, a hollow region formed by subsequent filling in an adjacent panel stope (2) is stoped; and after the adjacent panel stope (2) is filled, a part of the panel barrier (3) is recovered, and a hollow region formed by the panel barrier is filled, so that the hollow region is eliminated finally. According to the method, the mining strength can be enhanced by using limited ore distribution area, the production capacity is increased, and mining production and hollow region filling costs are reduced.

Description

technical field [0001] The invention relates to an underground mine mining method, in particular to a subsequent filling mining method for high-efficiency mining of large-scale underground mines. It is suitable for non-coal underground mines to use limited ore body distribution area to increase mining intensity, expand production capacity, and reduce mining production and empty area filling processing costs. Background technique [0002] There are three basic methods of underground mining in metal mines: one is the open field method, the other is the caving method, and the third is the filling method. Various mining methods have their own conditions of use: open-field mining method has large production capacity, low mining cost, and poor safety; filling mining method has low production capacity and high production cost, and is often used to mine high-value ores; caving mining method has high production capacity, However, the loss and dilution are large, requiring the surfac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/16E21F15/00
Inventor 胡永泉张传信郭金峰赵继银喻六平刘培正张显
Owner SINOSTEEL MAANSHAN INST OF MINING RES CO LTD
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