Coal mine bulk stock cut and fill mining method
A coal mine and filling technology, which is applied to filling materials, mining equipment, earth square drilling and mining, etc., can solve problems such as high price of filling materials, large interference between filling and coal mining, and difficulty in grouting, so as to reduce filling production costs and improve filling quality. Small interference with coal mining, good subsidence control effect
A coal mine and filling technology, which is applied to filling materials, mining equipment, earth square drilling and mining, etc., can solve problems such as high price of filling materials, large interference between filling and coal mining, and difficulty in grouting, so as to reduce filling production costs and improve filling quality. Small interference with coal mining, good subsidence control effect
CN102943689AInactive Publication Date: 2013-02-27HEBEI COAL SCI RES INST
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[0025] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0026] The coal mining method adopts longwall fully mechanized mining, the operation method is "three mining and one standard", and the double-drum shearer with a cutting depth of 500~800mm is adopted, and the mining process is basically the same as that of ordinary fully mechanized mining. The main equipment of the coal mining face with filling mining method is shown in Table 1. The filling work is carried out after the one-cut coal mining operation is completed. After straightening the filling hydraulic support, adjust the hanging filling scraper conveyor at the rear of the filling hydraulic support, and start the filling scraper conveyor, self-moving transfer machine, Gangue belt conveyor and other equipment are used to fill the goaf. The filling work is mainly completed by the filling scraper conveyor and the pushing and compacting mechanism. The mixture of was...
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The invention relates to a coal mine bulk stock cut and fill mining method, and the mining and cutting and filling process is as follows: (1) circularly mining web on a working plane; (2) starting a cut-fill and transportation machine, and transporting the filler to the cut-fill working plane; (3) sequentially filling a first charging hole to a fifth hole on the tail part of a scraper conveyor to be compacted, repeatedly filling and compacting the filler inside each charging hole for 2 to 3 times, compacting the filler to the roof, and completing the filling of a first step; (4) pulling the filling scraper conveyor for one step, repeating the filing and compacting step, adequately filling the filler to the roof and adequately compacting the filler, and completing the filling of a first turn; (5) pushing a mining machine to the working plane, setting the coal mining step of 0.5 to 0.8m, and carrying out the mining; and (6) adjusting the cut-fill machine after second web, and carrying out the filling of a second turn. A coal mining system and a filling system are integrated through a filling hydraulic support, the mining of the work plane is synchronously carried out with the filling operation, and the integration of the mining and the filling operation is realized.
Description
technical field [0001] The invention belongs to the technical field of goaf filling in mines, and relates to a method for filling goafs in coal mines, in particular to a method for filling and mining coal mine bulk materials. Background technique [0002] The mining of compressed coal under buildings, water bodies and railways has always been a major problem that plagues my country's coal mining enterprises. With the gradual depletion of resources in some mining areas, the problem of three-down coal pressing has become more prominent. Especially in economically developed areas, due to the shortage of land resources and the increase in requisition costs, it is imperative to press coal without relocation of mining buildings. The successful mining of coal under the three pressures is of great significance to improving the utilization rate of coal resources and alleviating the tension of mine resources. [0003] The traditional methods to solve the problem of three-down coal p...
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Patent Timeline
27 Feb 2013
Publication
CN102943689A
- IPC
- E21F15/06; E21F13/06
- Inventors
- 刘建功; 赵庆彪