CN105736044A - Rapid withdrawing method for fully mechanized coal mining face equipment of steep coal seam - Google Patents
Rapid withdrawing method for fully mechanized coal mining face equipment of steep coal seam Download PDFInfo
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- CN105736044A CN105736044A CN201310084957.4A CN201310084957A CN105736044A CN 105736044 A CN105736044 A CN 105736044A CN 201310084957 A CN201310084957 A CN 201310084957A CN 105736044 A CN105736044 A CN 105736044A
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- 239000003245 coal Substances 0.000 title claims abstract description 30
- 238000005065 mining Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 2
- 238000007598 dipping method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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Abstract
A rapid withdrawal method for fully mechanized mining face equipment of a steep coal seam is characterized in that when the upper end of a working face is withdrawn to a mining stop line, a quarter-arc withdrawal roadway is tunneled along the upper end of the working face; a main return air gallery winch and an auxiliary winch for recovering fully-mechanized mining equipment are installed in the return air gallery; and simultaneously paving a working face withdrawing slideway in the coal mining working face, after the coal mining machine is withdrawn, sequentially withdrawing the bracket and the scraper conveyor for recovering and transferring the liquid piece by piece from bottom to top through the working face withdrawing slideway and the arc withdrawing roadway, and simultaneously withdrawing the equipment in the transportation roadway to finish the rapid withdrawal of the working face equipment. The method is convenient to operate, simple to implement, safe and effective, and can quickly realize the withdrawal of the fully mechanized coal mining face equipment of the steeply inclined coal seam.
Description
Technical field
The present invention relates to a kind of working face equipment Quick-return method, especially a kind of half-edge coal seam fully-mechanized mining working equipment Quick-return method suitable in underground coal mine.
Background technology
The Eleventh Five-Year Plan of state coal industrial development is pointed out: " reasonable development, improves resource recovery rate, reduces the coal mining impact on ecological environment " is the Main way of modern later China coal industry in period development.Half-edge coal seam refers to the seam inclination α coal seam more than 45 °, and the reserves at China's half-edge coal seam constitute about the 17% of coal gross reserves, and China main mining area has distribution mostly, and its annual production accounts for the 8～10% of whole nation coal total output, and in increasing trend year by year.Half-edge coal seam is due to the restriction of stope equipment performance, in China's present stage steeply-inclined seam mining adopt combine adopt less, main employing big gun is adopted, mechanization degree is low, labor strength is big, support system can not effectively closed operation space, poor stability, the security reliability of work surface is low, yield poorly.Present China makes great efforts to explore, study safe efficient, the fully-mechanized mining technology of half-edge coal seam, advances such seam mining technological progress, improves operating condition, realizes safety and high efficiency.
Realize the safety and high efficiency of high-dipping fully-mechanized mining working, one of major issue faced be working face equipment withdraw problem.High-dipping fully-mechanized mining working is relatively big due to seam inclination, equipment returning difficulty, withdraws overlong time, and the top board that work surface is exposed can strengthen along with the increase of outstanding top time deforms, and coal and rock side fall roof is serious, and work surface operating personnel and equipment do not ensure safely.Withdraw the time long simultaneously, face take-over difficulty, affect the production of mine.
In sum, research high-dipping fully-mechanized mining working equipment quick, to withdraw the safety and high efficiency for half-edge coal seam significant for safety.And the present invention takes circular arc to withdraw tunnel, work surface is laid and is withdrawn the measures such as slideway, it is achieved that the safety of equipment, Quick-return.
Summary of the invention
Technical problem: it is an object of the invention to for Problems existing in prior art, it is provided that a kind of half-edge coal seam fully-mechanized mining working equipment Quick-return method that method is simple, effective.
Technical scheme: the half-edge coal seam fully-mechanized mining working equipment Quick-return method of the present invention, step is as follows:
A, when work surface upper end back production is to when stopping adopting line, tunnel a quarter circular arc along work surface upper end and withdraw tunnel；
B, install in tailgate one for reclaim the tailgate main winch of fully-mechanized mining equipment, one coordinate pulley to make the auxiliary winch of service hoisting, and in tailgate, lay tailgate rail；
C, laying work surface withdraw slideway in coal-face, described work surface withdraws slideway and adopts steel plate, the I-steel that is symmetrically arranged on steel plate two sides, and on I-steel, interval is withdrawn slideway anchor cable equipped with being anchored in ground；
D, withdraw coal-winning machine after, withdraw slideway by work surface and circular arc withdraw tunnel and withdraws liquid successively by frame block-by-block from bottom to top and to reclaim the support and drag conveyor turned, the equipment returning in haulage way carries out simultaneously, completes working face equipment Quick-return.
Described circular arc withdraws rib inside tunnel and is equipped with and withdraws tunnel ferrum net, withdraw the online interval of tunnel ferrum with withdrawing tunnel steel band and withdrawing tunnel anchor cable/rod and fix, make to withdraw tunnel steel band, withdraw tunnel anchor cable/rod and withdraw tunnel ferrum online under to lock supporting, reinforce formation with concrete ejection afterwards and withdraw tunnel concrete spray coating, withdraw tunnel blade fin withdrawing to install outside the concrete spray coating of tunnel；
Tailgate main winch and tailgate auxiliary winch in described work surface tailgate are all fixed by bolts on concrete bed, and use earth anchor to reinforce, and set jail post；
Described withdrawing when reclaiming the support turned from bottom to top successively by frame block-by-block, first turning two at work surface lower end to reclaim the support turned as work surface bottom shield support, and work surface bottom shield support distance to reclaim the support turned less than 3.0m.
Beneficial effect: owing to have employed technique scheme, the present invention compared with prior art has the advantage that
1, for half-edge coal seam fully-mechanized mining working equipment returning, technique is simple, easy to operate；
2, having dug circular arc and withdrawn tunnel, work surface is laid and is withdrawn slideway, and equipment returning is easy, shortens the equipment returning time；
3, two supports are first turned as work surface bottom shield support at work surface lower end before reclaiming hydraulic support, it is prevented that other supports drop in the process of turning, and provide safety operation space for staff simultaneously；
4, withdrawing the time short, the roof deformation that work surface is exposed is little, and side fall roof will not occur coal and rock, protects the safety of working face equipment and personnel, ensure that normally taking over of work surface simultaneously.
Accompanying drawing explanation
Fig. 1 be present device when withdrawing work surface arrange axonometric chart；
Fig. 2 is that in Fig. 1 of the present invention, circular arc withdraws tunnel schematic diagram；
Fig. 3 is that Fig. 2 circular arc of the present invention withdraws tunnel partial top view；
Fig. 4 is that in Fig. 1 of the present invention, work surface withdraws slideway schematic diagram；
Fig. 5 is A A profile in Fig. 3 of the present invention；
Fig. 6 is B B profile in Fig. 3 of the present invention；
Fig. 7 is hydraulic support withdrawing method schematic diagram of the present invention.
In figure: 1-circular arc withdraws tunnel, 2-work surface withdraws slideway, 3-work surface bottom shield support, 4-to reclaim the support turned, 5-haulage way, 6-tailgate, 7-tailgate main winch, 8 tailgate auxiliary winches, 9 tailgate tracks, 1-1 withdraws tunnel blade fin, 1-2 withdraws tunnel steel band, 1-3 withdraws tunnel anchor cable/rod, and 1-4-withdraws tunnel concrete spray coating, and 1-5-withdraws tunnel ferrum net, 2-1-I-steel, 2-2-withdraws slideway anchor cable, 2-3-steel plate, α seam inclination.
Detailed description of the invention
Below in conjunction with accompanying drawing, one embodiment of the present of invention is further described:
As it is shown in figure 1, when the inclination alpha high-dipping fully-mechanized mining working upper end back production more than 45 ° is to, when stopping adopting line, tunneling a quarter circular arc along work surface upper end and withdraw tunnel 1；Work surface tailgate 6 install a drawing hoist do reclaim fully-mechanized mining equipment main winch 7, and install in the tailgate from work surface front an auxiliary winch 8 coordinate pulley do service hoisting use.Tailgate main winch 7 and tailgate auxiliary winch 8 in described work surface tailgate 6 are all fixed by bolts on concrete bed, and use earth anchor to reinforce, and set jail post.Rail 9 is laid routinely in tailgate；Using I-steel 2-1 to lay back work surface and withdraw slideway 2 in coal-face, work surface is withdrawn slideway 2 and is combined by anchor cable 2-2 and steel plate 2-3 and press solidly；After withdrawing coal-winning machine, withdrawing successively by frame block-by-block from bottom to top and to reclaim the support 4 and drag conveyor turned, the equipment in haulage way 5 reclaims and carries out with coal-face recovery operation simultaneously.
As shown in Figures 2 and 3, tunnel a quarter circular arc along coal-face upper end and withdraw tunnel 1, circular arc withdraws rib inside tunnel 1 and is equipped with and withdraws tunnel ferrum net 1-5, withdraw on the ferrum net 1-5 of tunnel interval with withdrawing tunnel steel band 1-2 and withdrawing tunnel anchor cable/rod 1-3 and fix, make to withdraw tunnel steel band 1-2, withdraw tunnel anchor cable/rod 1-3 and withdraw tunnel ferrum net 1-5 up and down to lock supporting, reinforce formation with concrete ejection afterwards and withdraw tunnel concrete spray coating 1-4, withdraw tunnel blade fin 1-1 withdrawing to install outside the concrete spray coating 1-4 of tunnel；Namely withdrawing after rib inside tunnel 1 adopts steel band 1-2, steel band 1-3 and ferrum net 1-5 up and down to lock supporting at circular arc and reinforce with concrete ejection, circular arc withdraws roadway floor laying work surface and withdraws slideway 2.
Such as Fig. 4, Fig. 5 and Fig. 6, lay work surface in coal-face and withdraw slideway 2, work surface withdraws the I-steel 2-1 that slideway 2 includes steel plate 2-3, is symmetrically arranged on steel plate 2-3 two sides, on I-steel 2-1, interval is withdrawn slideway anchor cable 2-2 equipped with being anchored in ground, combines press solidly by withdrawing slideway anchor cable 2-2 and steel plate 2-3.
As shown in Figure 7, withdraw when reclaiming the support 4 turned from bottom to top successively by frame block-by-block, first turning two at work surface lower end to reclaim the support 4 turned as work surface bottom shield support 3, and work surface bottom shield support 3 distance to reclaim the support 4 turned less than 3.0m.
Claims (4)
1. a half-edge coal seam fully-mechanized mining working equipment Quick-return method, is characterized in that comprising the steps:
A, when work surface upper end back production is to when stopping adopting line, tunnel a quarter circular arc along work surface upper end and withdraw tunnel (1)；
B, install in tailgate (6) one for reclaim the tailgate main winch (7) of fully-mechanized mining equipment, one coordinate pulley to do the auxiliary winch (8) of service hoisting laying tailgate rail (9) tailgate (6) in；
C, in coal-face lay work surface withdraw slideway (2), described work surface withdraws the I-steel (2-1) that slideway (2) includes steel plate (2-3), is symmetrically arranged on steel plate (2-3) two sides, and the upper interval of I-steel (2-1) is withdrawn slideway anchor cable (2-2) equipped with being anchored in ground；
D, withdraw coal-winning machine after, withdraw slideway (2) by work surface and circular arc withdraws tunnel (1) and withdraws successively by frame block-by-block from bottom to top and to reclaim the support (4) and drag conveyor turned, equipment returning in haulage way (5) carries out simultaneously, completes working face equipment Quick-return.
2. a kind of half-edge coal seam fully-mechanized mining working equipment Quick-return method according to claim 1, it is characterized in that: described circular arc withdraws inner side, tunnel (1) rib and is equipped with and withdraws tunnel ferrum net (1-5), withdraw upper interval, tunnel ferrum net (1-5) with withdrawing tunnel steel band (1-2) and to withdraw tunnel anchor cable/rod (1-3) fixing, make to withdraw tunnel steel band (1-2), withdraw tunnel anchor cable/rod (1-3) and withdraw tunnel ferrum net (1-5) up and down to lock supporting, reinforce formation with concrete ejection afterwards and withdraw tunnel concrete spray coating (1-4), tunnel blade fin (1-1) is withdrawn withdrawing to install outside tunnel concrete spray coating (1-4).
3. a kind of half-edge coal seam fully-mechanized mining working equipment Quick-return method according to claim 1, it is characterized in that: tailgate main winch (7) and tailgate auxiliary winch (8) in described work surface tailgate (6) are all fixed by bolts on concrete bed, and use earth anchor to reinforce, set jail post.
4. a kind of half-edge coal seam fully-mechanized mining working equipment Quick-return method according to claim 1, it is characterized in that: described withdraw when reclaiming support (4) turned from bottom to top successively by frame block-by-block, first turning two at work surface lower end to reclaim the support (4) turned as work surface bottom shield support (3), and work surface bottom shield support (3) distance to reclaim the support (4) turned less than 3.0m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310084957.4A CN105736044A (en) | 2013-03-15 | 2013-03-15 | Rapid withdrawing method for fully mechanized coal mining face equipment of steep coal seam |
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| CN201310084957.4A CN105736044A (en) | 2013-03-15 | 2013-03-15 | Rapid withdrawing method for fully mechanized coal mining face equipment of steep coal seam |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089234A (en) * | 2016-07-15 | 2016-11-09 | 北京科技大学 | A kind of method of distance auxiliary lane multichannel Quick-return fully-mechanized mining working |
| CN107381396A (en) * | 2017-07-25 | 2017-11-24 | 山西晋城无烟煤矿业集团有限责任公司 | The quick recovery process of mine endless rope winch |
| CN108035715A (en) * | 2017-12-27 | 2018-05-15 | 山东科技大学 | A kind of unregulated fully mechanized coal mining face just adopts stage isometric tune face method |
| CN108756987A (en) * | 2018-06-29 | 2018-11-06 | 山东省邱集煤矿有限公司 | Chute type Quick-return holder and automatic moving type cover frame method |
| CN109139076A (en) * | 2018-08-24 | 2019-01-04 | 淮北矿业股份有限公司 | A kind of mining tunnel face mechanization brush expands frame lane device |
| CN109184771A (en) * | 2018-11-20 | 2019-01-11 | 中煤新集能源股份有限公司 | Return air channel and its manufacturing method are reserved for withdrawing working face flexible shield-type |
| CN111946354A (en) * | 2020-08-14 | 2020-11-17 | 国家能源集团宁夏煤业有限责任公司 | Tunneling method for communicating bottom coal seam with upper layered withdrawing channel |
| CN114658432A (en) * | 2022-03-24 | 2022-06-24 | 国家能源集团宁夏煤业有限责任公司 | Construction method of fully mechanized coal mining face retraction channel |
| CN115142851A (en) * | 2022-08-02 | 2022-10-04 | 国家能源集团宁夏煤业有限责任公司 | Thick coal seam layered mining working face withdrawing method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089234A (en) * | 2016-07-15 | 2016-11-09 | 北京科技大学 | A kind of method of distance auxiliary lane multichannel Quick-return fully-mechanized mining working |
| CN106089234B (en) * | 2016-07-15 | 2018-05-25 | 北京科技大学 | A kind of method of the auxiliary lane multichannel Quick-return fully-mechanized mining working of long range |
| CN107381396A (en) * | 2017-07-25 | 2017-11-24 | 山西晋城无烟煤矿业集团有限责任公司 | The quick recovery process of mine endless rope winch |
| CN108035715A (en) * | 2017-12-27 | 2018-05-15 | 山东科技大学 | A kind of unregulated fully mechanized coal mining face just adopts stage isometric tune face method |
| CN108035715B (en) * | 2017-12-27 | 2019-05-07 | 山东科技大学 | A kind of unregulated fully mechanized coal mining face just adopts stage isometric tune face method |
| CN108756987A (en) * | 2018-06-29 | 2018-11-06 | 山东省邱集煤矿有限公司 | Chute type Quick-return holder and automatic moving type cover frame method |
| CN109139076A (en) * | 2018-08-24 | 2019-01-04 | 淮北矿业股份有限公司 | A kind of mining tunnel face mechanization brush expands frame lane device |
| CN109184771A (en) * | 2018-11-20 | 2019-01-11 | 中煤新集能源股份有限公司 | Return air channel and its manufacturing method are reserved for withdrawing working face flexible shield-type |
| CN109184771B (en) * | 2018-11-20 | 2023-10-24 | 中煤新集能源股份有限公司 | Method for manufacturing flexible shield type reserved return air channel for retracting working face |
| CN111946354A (en) * | 2020-08-14 | 2020-11-17 | 国家能源集团宁夏煤业有限责任公司 | Tunneling method for communicating bottom coal seam with upper layered withdrawing channel |
| CN114658432A (en) * | 2022-03-24 | 2022-06-24 | 国家能源集团宁夏煤业有限责任公司 | Construction method of fully mechanized coal mining face retraction channel |
| CN115142851A (en) * | 2022-08-02 | 2022-10-04 | 国家能源集团宁夏煤业有限责任公司 | Thick coal seam layered mining working face withdrawing method |
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Application publication date: 20160706 |