CN102493838B - Method for fully mechanized continuously-filling coal mining of steeply pitching coal seam - Google Patents
Method for fully mechanized continuously-filling coal mining of steeply pitching coal seam Download PDFInfo
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- CN102493838B CN102493838B CN201110423677.2A CN201110423677A CN102493838B CN 102493838 B CN102493838 B CN 102493838B CN 201110423677 A CN201110423677 A CN 201110423677A CN 102493838 B CN102493838 B CN 102493838B
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Abstract
The invention provides a method for fully mechanized continuously-filling coal mining of steeply pitching coal seams, which comprises the following steps: a stoping face is arranged as per the method of long-wall mining along the strike, and fully mechanized mining equipment for the steeply pitching coal seam is adopted; an air cushion and a working face filling pipeline are arranged on a base on the side of a mined out space of rear pillars of a fully mechanized mining support; whenever the working face advances for every 1.4 to 1.8 meters and after the support is moved, the working face filling pipeline is connected with an upper gateway filling main pipeline; the air cushion is filled with air, and auxiliary separation is arranged; paste is conveyed to a filling pipe branch sequentially from low to high so as to ensure filling and compacting, and finally the paste is conveyed to a supplementary filling pipe of the upper gateway; after the paste is coagulated, a portion of air in the air cushion is released, and the working face advances forward continuously; the steps are repeated until the stopping work for the whole working face and the filling work for the mined out space are finished. The method provided by the invention is convenient to operate and simple to carry out, can improve the mechanization level for mining the steeply pitching coal seams under buildings, railways and water bodies, improves the output of the working face, efficiently reduces the roof subsidence and the ground deformation, and realizes coal mining without the pillars and achieves Y type ventilation.
Description
Technical field
The present invention relates to the goaf filling exploitation method of a kind of colliery pit mining, particularly a kind of half-edge coal seam is combined the continuous filling coal mining method of adopting.
Background technology
Along with China's economy and social fast development, coal high strength exploitation for many years, make mining area, Eastern China and the good coal seam of superficial part occurrence condition fewer and feweri, thereby make " three times " press the research of the mining problem of coal and half-edge coal seam to enter important stage, cause the great attention of scientific circles and enterprise.High-dipping or high inclination-angle coal reserves account for 15%～20% left and right of national coal reserves, and particularly western part and the southern most mine in China all has half-edge coal seam, and half-edge coal seam is the main mining coal seam of many mining areas or mine.
In recent years, the research work of high-dipping fully-mechanized mining equipment and gentle inclined working face filling mining has been obtained to greater advance, but very few to combining the half-edge coal seam filling mining research of adopting under condition.The general employing of high-dipping filling mining faced upward the slanted bar band method of collecting coal by the means of filling; in next working face extraction on the goaf of a work plane carry out spoil from slipping filling, or in this working face extraction, carry out spoil from slipping filling, but the method coal winning technology falls behind; labor strength is large; pillar consumption is large, and roof stability is poor, and safety factor is low; and goaf filling compactness is not high; loosely organized, cause distortion great ，Dui earth's surface in earth's surface to be protected the protection of object limited.
Summary of the invention
The above-mentioned technical problem existing in order to solve existing half-edge coal seam filling mining, the invention provides a kind of half-edge coal seam and combines the continuous filling coal mining method of adopting.The present invention can improve the Mechanization Level of steeply-inclined seam mining, significantly improve work plane output, improve work plane condition, reduce labor strength, can solve the problems such as roadway surrounding rock pressure is large, can effectively control earth's surface distortion, solve a difficult problem for half-edge coal seam " three times " exploitation, can also realize without coal pillar mining and Y type and ventilating, improve coal recovery rate, prevent and treat methane accumulation, leak out and Period of Coal Seam Spontaneous Combustion.In addition, the present invention can consume gangue, waste solid and flyash etc., and environmental benefit, economic benefit and social benefit are remarkable.
The technical scheme that the present invention solves the problems of the technologies described above comprises the following steps:
1) from ground, lay the supreme crossheading of filling main line pipeline;
2) work plane is installed coal-winning machine, scratch board conveyor, comprehensive mining hydraulic bracket and air cushion, the face filling pipeline of assigning a work on the base between comprehensive mining hydraulic bracket rear column and air cushion, and lower crossheading is installed elevating conveyor and scalable adhesive tape conveyor;
3) stope is often pushed ahead 1.4～1.8m, moves after frame, and work plane filling pipeline is connected with upper crossheading filling main line pipeline;
4) gas that is 0.5MPa to charged pressure in air cushion expands air cushion, the air cushion partition wall between shape fully-mechanized mining working in a row and goaf, and arrange auxiliary spacer assembly;
5) in the filling branched pipe of work plane low side, carry lotion, after treating that lotion connects top and low end regions is filled with, second filling pipe on Zai Xiang top carried lotion, with this, construct, according to principle of temporal sequence from low to high, carry out successively filling, on the most backward work plane, crossheading face end support place supplements filling pipe and carries lotion;
6), after filling, rinse whole filling main line pipeline, work plane filling pipeline and ground Filling Station equipment and device;
7) treat that obturation condenses, air cushion internal gas pressure is released into 0.3MPa, complete the circulation of a back production and filling;
8) work plane starts to push ahead, repeating step 3), 4), 5), 6), 7), complete the circulation of next back production and filling, so circulation, until complete back production and the filling operation of whole work plane.
Technique effect of the present invention is:
1) the present invention adopts fully-mechanized mining equipment and filling air cushion to combine, improve the Mechanization Level of " three times " steeply-inclined seam minings, greatly enhanced productivity, reduced workman's labour intensity, can also effectively control face roof pressure, guarantee workman's safety;
2) the present invention carries out filling to goaf, can effectively control ground settlement, reduces surface disturbance, reduces roadway surrounding rock pressure, can also realize without coal pillar mining and Y type and ventilating, and improves coal recovery rate, prevents and treats methane accumulation, leaks out and Period of Coal Seam Spontaneous Combustion.
3) goaf filling of the present invention also can consume a large amount of gangues, waste solid and flyash the like waste, turns waste into wealth, and has reduced it to the pollution of surrounding enviroment with to appropriation of land.
Accompanying drawing explanation
Fig. 1 is that work plane of the present invention is arranged schematic diagram.
In figure: 1-face end support, 2-elevating conveyor, the scalable adhesive tape conveyor of 3-, 4-comprehensive mining hydraulic bracket, 5-coal-winning machine, 6-scratch board conveyor, 7-obturation, 8-air cushion, 9-filling main line pipeline, 10-rear column, 11-front column, the upper crossheading of 12-, crossheading under 13-, 14-work plane filling pipeline, 15-filling branched pipe, 16-base, 17-supplements filling pipe.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Concrete steps of the present invention are as follows:
Filling main line pipeline 9 supreme crossheadings 12 are laid on Paste-filling System ，Cong ground, surface construction mine; Work plane is installed coal-winning machine 5, scratch board conveyor 6, comprehensive mining hydraulic bracket 4 and air cushion 8, and air cushion 8 is arranged on the base 16 of comprehensive mining hydraulic bracket 4 rear column 10 goaf sides, with comprehensive mining hydraulic bracket 4, moves; The face filling pipeline 14 of assigning a work on the base 16 of 8, comprehensive mining hydraulic bracket 4 rear columns 10 and air cushion, installs elevating conveyor 2 and scalable adhesive tape conveyor 3 in lower crossheading 13; Stope is often pushed ahead 1.4～1.8m, moves after frame, and work plane filling pipeline 14 is connected with the filling main line pipeline 9 in upper crossheading 12; The gas that is 0.5MPa to the interior charged pressure of air cushion 8 expands air cushion 8, the air cushion partition wall between shape fully-mechanized mining working in a row and goaf, and arrange auxiliary quarantine measures; In the filling branch line 15 of work plane low side, carry lotion, after treating that lotion connects top and low end regions is filled with, second filling branched pipe on Zai Xiang top carried lotion, with this, construct, according to principle of temporal sequence from low to high, carry out successively filling, on the most backward work plane, crossheading face end support place supplements filling pipe 17 and carries lotion, supplements filling; After filling, rinse whole main line pipeline 9, work plane filling pipeline 14Ji ground Filling Station equipment and device; Treat that obturation 7 condenses, air cushion 8 internal gas pressures are released into 0.3MPa, complete the circulation of a back production and filling; Work plane starts to push ahead, and repeats the cyclic process of a back production and filling, completes the circulation of next back production and filling, and so circulation, until complete back production and the filling operation of whole work plane.
Claims (4)
1. half-edge coal seam is combined and is adopted a continuous filling coal mining method, comprises the following steps:
1) from ground, lay the supreme crossheading of filling main line pipeline, lower crossheading is installed elevating conveyor and scalable adhesive tape conveyor;
2) work plane is installed coal-winning machine, scratch board conveyor, comprehensive mining hydraulic bracket and air cushion, the face filling pipeline of assigning a work on the base between comprehensive mining hydraulic bracket rear column and air cushion;
3) stope is often pushed ahead 1.4～1.8m, moves after frame, and work plane filling pipeline is connected with upper crossheading filling main line pipeline;
4) gas that is 0.5MPa to charged pressure in air cushion, expands air cushion, the air cushion partition wall between shape fully-mechanized mining working in a row and goaf, and arrange auxiliary spacer assembly;
5) in the filling branched pipe of work plane low side, carry lotion, after treating that lotion connects top and low end regions is filled with, second filling pipe on Zai Xiang top carried lotion, with this, construct, according to principle of temporal sequence from low to high, carry out successively filling, on the most backward work plane, crossheading face end support place supplements filling pipe and carries lotion;
6), after filling, rinse whole filling main line pipeline, work plane filling pipeline and ground Filling Station equipment and device;
7) treat that obturation condenses, air cushion internal gas pressure is released into 0.3MPa, complete the circulation of a back production and filling;
8) work plane starts to push ahead, repeating step 3), 4), 5), 6), 7), complete the circulation of next back production and filling, so circulation, until complete back production and the goaf filling work of whole work plane.
2. half-edge coal seam as claimed in claim 1 is combined and is adopted continuous filling coal mining method, it is characterized in that: the work plane of described step 2 is arranged by strike long wall method.
3. half-edge coal seam as claimed in claim 1 is combined and is adopted continuous filling coal mining method, it is characterized in that: the air cushion of described step 2 is arranged on the base of comprehensive mining hydraulic bracket rear column goaf side, with comprehensive mining hydraulic bracket, moves.
4. half-edge coal seam as claimed in claim 1 is combined and to be adopted continuous filling coal mining method, it is characterized in that: the goaf filling of described step 8 is for continuously continuously every filling.
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| CN201110423677.2A CN102493838B (en) | 2011-12-17 | 2011-12-17 | Method for fully mechanized continuously-filling coal mining of steeply pitching coal seam |
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| CN201110423677.2A CN102493838B (en) | 2011-12-17 | 2011-12-17 | Method for fully mechanized continuously-filling coal mining of steeply pitching coal seam |
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| CN102493838B true CN102493838B (en) | 2014-01-15 |
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| CN105134215A (en) * | 2015-09-25 | 2015-12-09 | 西安科技大学 | Local filling mining method for longwall face along strike of steeply dipping seam |
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| CN112727538B (en) * | 2021-02-05 | 2022-12-13 | 中煤科工集团西安研究院有限公司 | Drum-type sealing device and method for goaf filling |
| CN113339054B (en) * | 2021-06-07 | 2023-01-06 | 山东康格能源科技有限公司 | Coal mine caving zone filling process |
| CN113339053B (en) * | 2021-06-07 | 2023-06-06 | 山东康格能源科技有限公司 | Fully-mechanized caving mining and filling process for coal mine |
| CN117090573B (en) * | 2023-10-17 | 2023-12-19 | 臣功环境科技有限公司 | Z-type full-wind-pressure staggered strip continuous mining and continuous charging integrated process for mine |
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Patent Citations (6)
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