CN101787889B - Comprehensive mechanized coal mining method through cantilever support - Google Patents
Comprehensive mechanized coal mining method through cantilever support Download PDFInfo
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- CN101787889B CN101787889B CN2010101271093A CN201010127109A CN101787889B CN 101787889 B CN101787889 B CN 101787889B CN 2010101271093 A CN2010101271093 A CN 2010101271093A CN 201010127109 A CN201010127109 A CN 201010127109A CN 101787889 B CN101787889 B CN 101787889B
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Abstract
The invention relates to a comprehensive mechanized coal mining method through a cantilever support, which organically combines a shearer, a scraper conveyer, a cantilever support and a hydraulic breaking-off prop for combined operation. The shearer is started to cut the coal wall, and the cut-off coal automatically falls on the scraper conveyer; the scraper conveyer is started to automatically convey the coal out; when the shearer cuts the coal wall to a certain depth, an expansion link of a jack is pushed to extend out, the hydraulic breaking-off prop is used as a fixed fulcrum, and the scraper conveyer and the shearer arranged thereon are together pushed towards the coal wall; the hydraulic breaking-off prop is disassembled and separated from a top plate, a piston rod of the jack is pushed to draw back, the scraper conveyer is used as the fixed fulcrum, and the hydraulic breaking-off prop is pulled forwards; and the cantilever support moves forwards through a hydraulic operating mechanism till the cantilever support completely moves forwards in place. The comprehensive mechanized coal mining method has the advantages that the thin seam mining difficulty and the labor intensity of workers are reduced, and the mechanization degree of the thin seam mining is improved.
Description
Technical field
The present invention relates to a kind of method that cuts coal, particularly a kind of comprehensive mechanized coal mining method through cantilever support.
Background technology
In the explored coalfield of China, the difficulty that is in 0.8-1.6 rice is adopted girdle and is accounted for about 30% of gross reserves, even higher.Mechanical mining to this coal seam conditions is the China's coal-mine exploitation field problem and the difficult problem of lucubrate for many years.Because coal is non-renewable primary energy, coal resources play vital fundamental role to the energy security that guarantees China; Therefore,, can not abandon, abandon and just mean waste even adopt also must exploitation for the girdle difficulty of this condition.But because the coal seam height is very low, and working space is very narrow and small again; Workman's turnover is difficulty very, can't walk upright at work plane, more can not uprightly work; The workman is perforating under the figure who sits, crouches, blows out, and manual work is produced coal, transported various productions and uses material.The mechanical mining of girdle does not for many years have big breakthrough all the time, basically still original labour-intensive man-made recovery's mode.Under such condition, safe condition does not ensure, coal mining miner labour intensity is very big, and production efficiency is very low, and single face output is lower.Therefore, press for the present backward situation of change, solve the comprehensive mechanization problem of thin seam mining.
Summary of the invention
Technical problem to be solved by this invention is: a kind of comprehensive mechanized coal mining method through cantilever support is provided, reduces thin seam mining difficulty and working strength of workers, improve the mechanization degree of thin seam mining, thereby improve the production efficiency of girdle.
The present invention realizes through following technical scheme: a kind of comprehensive mechanized coal mining method through cantilever support, it is characterized in that, and comprise the steps:
(a) scratch board conveyor is laid along work plane;
(b) be installed on the said scratch board conveyor coal-winning machine and commissioning test;
(c) the installation cantilever support is set on work plane;
(d) installation hydraulic pressure is set and cuts the top pier stud on work plane;
(e) end that will pass jack is cut the top pier stud with said hydraulic pressure and is connected, and the other end is connected with said scratch board conveyor;
(f) start said coal-winning machine cut rib, the coal under the cut falls on the said scratch board conveyor automatically;
(g) start said scratch board conveyor, coal is transported automatically;
(h) behind said coal-winning machine cut certain depth, the expansion link of said passing jack stretches out, and cutting the top pier stud with said hydraulic pressure is fixed support, with said scratch board conveyor and the rib passing in the same way of setting said coal-winning machine one in the above;
(i) said hydraulic pressure is cut the unloading of top pier stud and broken away from top board, the piston rod of said passing jack shrinks, and is fixed support with said scratch board conveyor, draws forward to move said hydraulic pressure and cut the top pier stud;
(j) said cantilever support puts in place up to said cantilever support is all moved forward through the hydraulic operating mechanism reach;
(k) coal mining that repeats above-mentioned steps (f) to step (j) is operated.
Above-mentioned comprehensive mechanized coal mining method through cantilever support, it is hinged that an end of said passing jack and said hydraulic pressure are cut the top pier stud, and the other end and said scratch board conveyor are hinged.
Above-mentioned comprehensive mechanized coal mining method through cantilever support, said cantilever support is for dividing body support frame or integral support.
Above-mentioned comprehensive mechanized coal mining method through cantilever support, said hydraulic pressure are cut the top pier stud and are two or more, and each said hydraulic pressure is cut the top pier stud and is connected with said scratch board conveyor through different said passing jack respectively.
Comprehensive mechanized coal mining method through cantilever support of the present invention has following beneficial technical effects: the coal breakage mode that hand-holing is blown out in (1) is changed into the coal-winning machine machine cuts coal breakage mode of utilizing; Manual work produced coal change into the coal scratch board conveyor and produce coal automatically; Production efficiency and work plane output have not only been improved greatly; And fundamentally eliminated the hidden danger of the accident of blowing out, labor strength reduces greatly.(2) work plane adopts and to be convenient to the cantilever support support form that transports and install, not only realized the internal safety to roof timbering, and has changed the workman and transport the mode of production with supporting repeatedly, and working strength of workers has obtained the most substantial liberation.(3) the combination supporting mode that adopts cantilever support adapted hydraulic pressure to cut the top pier stud guarantees that force piece has enough supporting intensities and the top board casualty accident does not take place top board.(4) consider that cantilever support passes the functional defect of coal scratch board conveyor; Selected for use hydraulic pressure to cut the top pier stud as the matched auxiliaring equipment of passing and auxiliary cantilever support supports with enough support strengths; And random interval is arranged the safety that has greatly improved the thin layer coal mining.(4) realize comprehensive mechanical coal mining, fundamentally solved the workman and relied on spade, the condition of work of the high physical demands of under the figure who sits, crouches, producing coal.Moreover, pass the coal scratch board conveyor and strengthen, selected for use hydraulic pressure to cut top pier stud and support and the configuration of coal scratch board conveyor one roof timbering in order to solve.Make face mechanization supporting more perfect.At last; The invention solves under the condition of girdle the man-made recovery changed into mechanical mining, with respect to existing coal-mining method have tangible safe, efficient, high yield, mechanization degree high, with the coal miner overall merit that thorough liberation comes out from the manual labor of heaviness and bad working environment.
Description of drawings
The structural representation that Fig. 1 installs and uses for cantilever support, coal-winning machine and scratch board conveyor in the comprehensive mechanized coal mining method through cantilever support of the present invention;
Fig. 2 cuts the structural representation that top pier stud and scratch board conveyor are installed and used for passing jack, hydraulic pressure in the comprehensive mechanized coal mining method through cantilever support of the present invention.
Wherein: the 1-cantilever support, the 2-coal-winning machine, the 3-scratch board conveyor, 4-hydraulic pressure is cut the top pier stud, and 5-passes jack.
Embodiment
The comprehensive mechanized coal mining method through cantilever support of present embodiment comprises the steps: scratch board conveyor 3 is laid along work plane; Be installed on the said scratch board conveyor 3 coal-winning machine 2 and commissioning test; On work plane, be provided with cantilever support 1 is installed; Installation hydraulic pressure is set on work plane cuts top pier stud 4; It is hinged that an end of passing jack 5 and said hydraulic pressure are cut top pier stud 4, and the other end and said scratch board conveyor 3 are hinged; Start said coal-winning machine 2 cut ribs, the coal under the cut falls on the said scratch board conveyor 3 automatically; Start said scratch board conveyor 3, coal is transported automatically; Behind said coal-winning machine cut certain depth, the expansion link of said passing jack 5 stretches out, and cutting top pier stud 4 with said hydraulic pressure is fixed support, with said scratch board conveyor 3 and the rib passing in the same way of setting said coal-winning machine 2 one in the above; Said hydraulic pressure is cut top pier stud 4 unloading and broken away from top board, and the piston rod of said passing jack 5 shrinks, and is fixed support with said scratch board conveyor 3, draws forward to move said hydraulic pressure and cut top pier stud 4; Said cantilever support 1 puts in place up to said cantilever support 1 is all moved forward through the hydraulic operating mechanism reach; And then start said coal-winning machine 2 cut ribs and proceed to mine.The comprehensive mechanized coal mining method through cantilever support of present embodiment has following beneficial technical effects: the coal breakage mode that hand-holing is blown out is changed into the coal-winning machine 2 machine cuts coal breakage modes of utilizing; Manual work produced coal change into coal scratch board conveyor 3 and produce coal automatically; Production efficiency and work plane output have not only been improved greatly; And fundamentally eliminated the hidden danger of the accident of blowing out, labor strength reduces greatly.Work plane adopts is convenient to cantilever support 1 support form that transports and install, not only realized the internal safety to roof timbering, and has changed the workman and transport the mode of production with supporting repeatedly, and working strength of workers has obtained the most substantial liberation.The combination supporting mode that adopts cantilever support 1 adapted hydraulic pressure to cut top pier stud 4 guarantees that force piece has enough supporting intensities and the top board casualty accident does not take place top board.Consider the functional defect of cantilever support 1 passing coal scratch board conveyor 3; Selected for use hydraulic pressure to cut top pier stud 4 as the matched auxiliaring equipment of passing and auxiliary cantilever support 1 supports with enough support strengths; And random interval is arranged the safety that has greatly improved the thin layer coal mining.Realize comprehensive mechanical coal mining, fundamentally solved the workman and relied on spade, the condition of work of the high physical demands of under the figure who sits, crouches, producing coal.Moreover, pass coal scratch board conveyor 3 and strengthen, selected for use hydraulic pressure to cut top pier stud 4 and cantilever support 1 and the configuration of coal scratch board conveyor 3 one roof timbering in order to solve.Make face mechanization supporting more perfect.At last; The invention solves under the condition of girdle the man-made recovery changed into mechanical mining, with respect to existing coal-mining method have tangible safe, efficient, high yield, mechanization degree high, with the coal miner overall merit that thorough liberation comes out from the manual labor of heaviness and bad working environment.What need particularly point out is: comprehensive mechanized coal mining method through cantilever support of the present invention is not only applicable to 0.8-1.6 rice, for the seam mining below 2.5 meters, all can reach mechanization degree that improves seam mining and the production efficiency that improves the coal seam.
In some other embodiment; Size according to coal-face; Said hydraulic pressure is cut top pier stud 4 also can be two or more, and to adapt to the needs of different coal faces, each said hydraulic pressure is cut top pier stud 4 and is connected with said scratch board conveyor 3 through different said passing jack 5 respectively; Said cantilever support 1 can be for being branch body support frame or integral support; All can realize the goal of the invention of the invention.
Claims (4)
1. a comprehensive mechanized coal mining method through cantilever support is characterized in that, comprises the steps:
(a) scratch board conveyor (3) is laid along work plane;
(b) coal-winning machine (2) being installed on said scratch board conveyor (3) goes up and commissioning test;
(c) installation cantilever support (1) is set on work plane;
(d) installation hydraulic pressure is set and cuts top pier stud (4) on work plane;
(e) end that will pass jack (5) is cut top pier stud (4) with said hydraulic pressure and is connected, and the other end is connected with said scratch board conveyor (3);
(f) start said coal-winning machine (2) cut rib, the coal under the cut falls on the said scratch board conveyor (3) automatically;
(g) start said scratch board conveyor (3), coal is transported automatically;
(h) behind said coal-winning machine cut certain depth, the expansion link of said passing jack (5) stretches out, and cutting top pier stud (4) with said hydraulic pressure is fixed support, with said scratch board conveyor (3) and the rib passing in the same way of setting said coal-winning machine (2) in the above;
(i) said hydraulic pressure is cut top pier stud (4) unloading and broken away from top board, the piston rod of said passing jack (5) shrinks, and is fixed support with said scratch board conveyor (3), draws forward to move said hydraulic pressure and cut top pier stud (4);
(j) said cantilever support (1) puts in place up to said cantilever support (1) is all moved forward through the hydraulic operating mechanism reach;
(k) coal mining that repeats above-mentioned steps (f) to step (j) is operated.
2. comprehensive mechanized coal mining method through cantilever support according to claim 1 is characterized in that, it is hinged that an end of said passing jack (5) and said hydraulic pressure are cut top pier stud (4), and the other end and said scratch board conveyor (3) are hinged.
3. comprehensive mechanized coal mining method through cantilever support according to claim 1 is characterized in that, said cantilever support (1) is for dividing body support frame or integral support.
4. according to the arbitrary described comprehensive mechanized coal mining method through cantilever support of claim 1 to 3; It is characterized in that; It is more than two that said hydraulic pressure is cut top pier stud (4), and each said hydraulic pressure is cut top pier stud (4) and is connected with said scratch board conveyor (3) through different said passing jack (5) respectively.
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| CN2010101271093A CN101787889B (en) | 2010-03-18 | 2010-03-18 | Comprehensive mechanized coal mining method through cantilever support |
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| CN2010101271093A CN101787889B (en) | 2010-03-18 | 2010-03-18 | Comprehensive mechanized coal mining method through cantilever support |
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| CN101787889B true CN101787889B (en) | 2012-01-11 |
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| CN102080541B (en) * | 2010-12-08 | 2012-09-19 | 中国神华能源股份有限公司 | Bidirectional cutting method for continuous miner |
| CN102720499B (en) * | 2012-06-29 | 2014-10-29 | 中国矿业大学 | Fully-mechanized top-coal caving, filling and mining method |
| CN104265291A (en) * | 2014-07-22 | 2015-01-07 | 天地科技股份有限公司 | Comprehensive mechanized coal mining method of steeply inclined and extremely thick coal seam planing conveyor |
| CN104863585B (en) * | 2015-04-28 | 2017-11-07 | 四川达竹煤电(集团)有限责任公司柏林煤矿 | The thin complete set of equipments with ultra-thin coal seam coal face non-notch feed |
| CN112746845B (en) * | 2020-12-31 | 2022-02-01 | 南京滨飞科技开发有限公司 | Thin coal seam multi-rope slicing type coal cutting and mining method |
| CN113026574B (en) * | 2021-04-19 | 2021-12-14 | 佛山市中凯路桥工程有限公司 | Novel jacking support for highway bridge |
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| BE545472A (en) * | 1955-02-23 | |||
| GB1037911A (en) * | 1962-01-29 | 1966-08-03 | Groetschel Karl Maria | Improvements relating to roof supports for mine workings |
| CN100494635C (en) * | 2005-01-19 | 2009-06-03 | 新汶矿业集团汶南煤矿有限责任公司 | Method for filling goaf by gangue |
| CN1932240B (en) * | 2006-09-21 | 2010-07-28 | 闫振东 | Full-seam cutting, retreating, separate moving and full-caving comprehensive mechanized coal mining method |
| CN200964858Y (en) * | 2006-11-01 | 2007-10-24 | 山西焦煤集团有限责任公司 | Dredging, protection, anchoring integral tunneling apparatus |
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