Treatment method of inter-column goaf
A goaf treatment and goaf technology, which is applied in mining equipment, earthwork drilling, filling, etc., can solve the problems of low filling efficiency, high cost, and long cycle, so as to improve resource recovery rate and reduce filling cost , the effect of simple operation
Active Publication Date: 2018-07-31
NORTHWEST RES INST OF MINING & METALLURGY INST
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Problems solved by technology
[0006] The purpose of the present invention is to provide a treatment method for gobs between pillars to solve the problems of low filling efficiency, long period and high cost in the prior art using the tailings cemented filling method
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[0027] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0028] A method for treating a goaf between pillars, comprising the following steps:
[0029] Step 1: Chiseling medium and deep holes: On the wall of the roadway 4 close to the goaf 2 in the top pillar of the mine, at the position above the roof 7 of the goaf in the goaf and below the cover layer 6 of loose waste rock, use YGZ The -90 rock drill is constructed with several rows of medium-deep holes 5, and the inclination angle and depth of each row of medium-deep holes 5 at the same position are the same. 1.2-1.4 meters, row angle 90°;
[0030] Step 2: blasting to prepare the feed opening: use layered and sequential blasting methods to blast the medium-deep holes 5, and install sections in the first and second medium-deep holes 5 near the goaf roof 7 in each row. The micro-delay millisecond delay detonator is the first...
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The invention belongs to the technical field of mining and discloses a stud goaf treatment method. Multiple rows of medium-depth holes are formed in the position, close to the roadway wall of a stud goaf, of a chamber top column mining roadway and the positions located above a stud goaf top board and below a loose barren rock covering layer, a discharging opening is formed by the adoption of a layering and sequential detonation method, the barren rock covering layer above the stud goaf is led in, and the stud goaf is filled; multiple discharging roadways are arranged at the positions in the middle of a stud and a heading side, a stope shoveling device is used for shoveling stope barren rocks, the discharging opening is filled with the led-in barren rocks, and then the remaining part of the goaf is filled; and a bottom ore recovery roadway is arranged at the bottom of the stud goaf, an ore discharging roadway is arranged at the position of the lower portion of the discharging opening, and the ores entering the bottom of the stud goaf after a denotation are recovered. By the adoption of the method, filling channels are formed efficiently and rapidly, a filling manner of the remaining part of the filling goaf is reasonable and rapid, a filling period is effectively shortened, the filling efficiency is improved, and the filling cost is reduced.
Description
technical field [0001] The invention relates to the technical field of mining, in particular to a method for treating a goaf of an inter-column with high filling efficiency and low cost. Background technique [0002] The filling effect and quality of underground gobs directly affect the recovery and mining benefits of subsequent ore bodies. Improving the filling effect is of great significance to ensure production safety, reduce production costs, reduce losses and dilution rates, and improve economic benefits. [0003] The deep copper mine of Baiyin Company is a continuation mine from open-pit to underground mining. The main mining area is distributed on the slope and pit bottom of the 1# stope of the original open-pit mine. It was completed and put into production in 1987, and was mined by the empty-stop-and-fill method in the rich ore section in the eastern part of the ore body. [0004] The mining method of the mining field divides the ore block into four parts: the min...
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IPC IPC(8): E21F15/00
CPCE21F15/00
Inventor 王建军李德忠蔡立丰王志远张国勇高闻宇牟业龙刘亭
Owner NORTHWEST RES INST OF MINING & METALLURGY INST