CN202338341U - Coal mining device on unmanned working surface of heavily-pitched super-thin coal seam - Google Patents
Coal mining device on unmanned working surface of heavily-pitched super-thin coal seam Download PDFInfo
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- CN202338341U CN202338341U CN2011205317151U CN201120531715U CN202338341U CN 202338341 U CN202338341 U CN 202338341U CN 2011205317151 U CN2011205317151 U CN 2011205317151U CN 201120531715 U CN201120531715 U CN 201120531715U CN 202338341 U CN202338341 U CN 202338341U
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Abstract
The utility model discloses a coal mining device on an unmanned working surface of a heavily-pitched super-thin coal seam, which comprises an upper winch and a lower winch respectively arranged in an upper wind alley and a lower wind alley and corresponding to a winch chamber, and an iron chain type bidirectional saw-toothed coal cutting tool arranged in the working surface and capable of having reciprocating movement in the working surface, wherein the two ends of the bidirectional saw-toothed coal cutting tool respectively form detachable fixed connection with free ends of two steel strands of the upper winch and the lower winch. Preferably, the bidirectional saw-toothed coal cutting tool comprises a plurality of coal cutting teeth arranged at an interval equal to a set distance in the length direction; the adjacent coal cutting teeth are staggered in sequence long the circumferential direction; a coal cutting working surface of a part of the coal cutting teeth is opposite to that of the other part of the coal cutting teeth. More preferably, the bidirectional saw-toothed coal cutting tool comprises an iron chain; each coal cutting tooth consists of a coal cutting head and a connecting handle; and the coal cutting teeth are fixedly welded to a chain ring of the iron chain by the connecting handles. The coal mining device disclosed by the utility model has the advantages of simple structure, convenience for operation and low manufacturing cost, and high coal mining efficiency, high safety, low noise and low labor intensity during coal mining.
Description
Technical field
The utility model relates to the coal-mining technique field, particularly a kind of coal mining device of high-dipping ultra-thin coal seam manless working face.
Background technology
Half-edge coal seam is meant a kind of inclination angle greater than 45 ° of coal seams, and ultra-thin coal seam is meant the coal seam of thickness below 0.8m, and it belongs to the association coal seam of minable coal seam.The exploitation of high-dipping ultra-thin coal seam has the important social meaning for improving resource utilization, alleviation energy supply tensity and slowing down lack of energy speed.Because it is big that the high-dipping ultra-thin coal seam has potential threats such as the exploitation space is narrow and small, the working space gradient big, the equipment back skating is dangerous greatly, work plane above goaf spoil splashes; Reasons such as personnel operation difficulty is big are difficult to use and combine that the technology of adopting connects and equipment carries out comprehensive mining.Therefore; At present, following several method is roughly arranged for the exploitation method of high-dipping ultra-thin coal seam, the one, big gun is adopted method; Adopt promptly that explosion coal-falling, manual work are coaling, the mode of monomer hydraulic support stand top board, the method exists that work efficiency is low, poor stability, deficiency that labour intensity is big; The 2nd, fall benching tunnelling method, promptly on work plane, arrange several rank of falling from power, each step by a workman carry out pneumatic pick coal breakage, supporting and with adopt with; Accidents such as partial roof falling at actual, base plate passing often take place in the work plane of this coal-mining method and support pattern, and because roof and floor shift-in amount is big, cause working space very narrow and small; Inconvenient operation; Operating environment is abominable, has influenced the propelling degree of operation of work plane normal circulation and work plane, therefore; Not only there is safety issue in it, but also has the low deficiency of per capita output; The 3rd, increase the mining height of work plane artificially, so that adopt safety and high mechanical mining equipment and the technology of efficient, a large amount of spoils is arranged but mix in the coal of this method institute extraction, therefore, there is the deficiency of Coal Quality difference in it.The 4th, utilize flitting or coal plough to exploit, but it can only exploit thicker ultra-thin coal seam.For thickness is 0.2～0.4m coal seam coal mining activity, and a kind of comparatively effective method is through bottle gouard moved by hands being set in the tunnel, drawing the coal mining activity that pneumatic coal mining device realizes that work plane is unmanned through bottle gouard moved by hands; But it is owing to be to mine through the bottle gouard moved by hands traction; Therefore, its work efficiency is lower, simultaneously; Also in the tunnel air compressor is set again, has increased the noise of working environment in the tunnel at need.
Summary of the invention
The purpose of the utility model is exactly the deficiency to prior art, and a kind of coal mining device that is applicable to the high-dipping ultra-thin coal seam exploitation of 0.2～0.4m thickness is provided, and this apparatus structure is simple, easy to operate.
For realizing above-mentioned purpose, the utility model adopts following technical scheme.
A kind of coal mining device of high-dipping ultra-thin coal seam manless working face; Comprise being located at air way and once winch and winch once on one in the corresponding winch chamber of air way respectively, and the two-way zigzag coal cutting of the iron chains formula instrument that is positioned at and can moves back and forth at work plane; The two ends of said two-way zigzag coal cutting instrument form removable the fixed connection with the free end of last winch and following winch two steel strand ropes respectively.
When adopting aforementioned schemes to mine; Tighten up two steel strand ropes of winch and following winch; So that two-way zigzag coal cutting instrument sidepiece presses on the rib of work plane; The power of winch and following winch is coordinated the folding and unfolding steel strand rope and two-way zigzag coal cutting instrument is moved back and forth form the saw formula and cut coal to cut coal body down in the utilization, continues to advance coal-face with this, the interior unmanned operation of work plane, safe.Simultaneously, the operation of mining only need be started winch and got final product, even adopt the manually-operated winch also only to need two winch operative employees, so it is simple in structure, the coal mining operating personnel are few, mining costs is low, production efficiency is high.
This coordinated manipulation signal can adopt the load mode of artificial contact to realize that the manually-operated winch is realized the coordination folding and unfolding of steel strand rope; Also can realize the signal transmission automatically through modes such as Stroke Control or load variations controls, also further can realize the automatic control of steel strand rope coordination folding and unfolding the operating system transformation of winch by the control system.These all are that those skilled in the art utilizes prior art to realize easily.Owing to realized the work plane unmanned operation, therefore, stopped the generation of work plane security incident, reduced workman's occupational disease morbidity risk rate, for country, enterprise and worker-family have brought great margin of safety benefit.Simultaneously, can choose the two-way zigzag coal cutting instrument of different size specification, restriction exploitation work plane thickness according to coal seam thickness; This layer of working seam and do not injure roof and base plate is realized that no spoil melts to adopt, and because of unmanned in the work plane; So do not need supporting in the work plane, thoroughly stopped the damage forest of using the timber supporting to cause in a large number because of low-level man-made recovery in the prior art, save supporting personnel configuration; Improve productivity ratio, reduced cost of production.Before coming into effect the work plane manless working face, should below following air way, form one comprise conveyer the transportation lane, be provided with several communication passage between transportation lane and the following air way, the passage that relatively lags behind is used for coal down, leading relatively passage is used for return air; Along with the propelling of work plane, when under the leading relatively passage during coal, more leading passage is used for return air, and the passage that relatively lags behind or also continue coal down perhaps progressively forms return air channel, also can manual work during no coal whereabouts closes or by the spoil shutoff.The rope stretching position of two-way zigzag coal cutting instrument is gradually near the work plane inclined-plane; When the advance of the face to not satisfying when going up the underlap status requirement, need the installation site of change directive wheel after, could continue continuous coal cutting; So circulation; Be reinstalled in the next corresponding winch chamber with following winch until going up winch, continue coal cutting then, all collected up to whole coal seam.In the progradation of work plane, can progressively set up passage and next group winch chamber.Can realize class Three's coal mining like this, the regular work cycle that Bian Caibian is accurate.
Optimized technical scheme, said two-way zigzag coal cutting instrument comprise length direction several coal cutting teeths of setpoint distance at interval, and adjacent coal cutting teeth is along circumferentially dislocation successively; The coal cutting work plane of part coal cutting teeth and the coal cutting work plane of another part coal cutting teeth are reverse.To improve coal cutting efficient, further enhance productivity.
Further optimized technical scheme, said two-way zigzag coal cutting instrument also comprises iron chains; Said coal cutting teeth is made up of coal cutting head and connection handle, and the coal cutting head is weldingly fixed on the corresponding chain link of iron chains through connection handle.So that two-way zigzag coal cutting instrument and working face wall form desirable match state, reduce the coal cutting resistance, further improve coal cutting efficient.
Optimized technical scheme, the stent width of said coal cutting head is 100～200mm.To adapt to the high-dipping ultra-thin coal seam of the different-thickness of coal seam thickness in 0.2～0.4m scope.
Optimized technical scheme, said go up also to be respectively equipped with between winch and following winch and the work plane be used for the directive wheel that steel strand rope leads, the oscillating quantity when directive wheel can limit two-way zigzag coal cutting instrument and moves is so that it is in the mining height scope of setting; When directive wheel also makes two-way zigzag coal cutting instrument coal cutting; The directive wheel of last winch side make two-way zigzag coal cutting instrument in the high distance of putting of hysteresis protrusion of the actual rope stretching position of work plane upper end and work plane greater than 1m, the directive wheel of following winch side make two-way zigzag coal cutting instrument in the distance of the lower end, inclined plane of the actual rope stretching position of work plane lower end and work plane greater than 2m.The face so that two-way zigzag coal cutting instrument gets into smoothly or deactivates reduces the limit load of winch, prolongs winch application life, reduces production costs.During coal mining, two directive wheels are separately fixed at air way and once air way is relevant with the position of directive wheel in the actual rope stretching position at work plane two ends.Along with the propelling of work plane, the rope stretching position of two-way zigzag coal cutting instrument is gradually near the work plane inclined-plane, when the advance of the face to not satisfying when going up the underlap status requirement, need the installation site of change directive wheel after, could continue continuous coal cutting.So circulation is reinstalled in the next corresponding chamber with following winch until going up winch, continues coal cutting then, is all collected up to whole coal seam.Can realize class Three's coal mining like this, the regular work cycle that Bian Caibian is accurate.
Optimized technical scheme; Said adjacent coal cutting teeth circumferential misalignment one set angle, length direction is a setpoint distance at interval, to form corn bar type spiral pick or polygon prism formula pick; To form even intercepting to coal body; Reduce the winch live load, prolong the application life of coal cutting instrument and winch, reduce production costs.Its dislocation angle confirms that according to factors such as the size of coal cutting teeth, drawworks horsepower, seam hardness character select 30 °～120 ° at circumferential misalignment angle usually, length direction is 100～200mm at interval according to the size of coal cutting teeth and axial spacing;
The utility model beneficial effect compared with prior art is that the coal mining apparatus structure is simple, easy to operate, low cost of manufacture; When utilizing this device to mine, coal mining efficient is high, safe, the operating environment noise is little, labour intensity is low.
Description of drawings
Fig. 1 is the structural representation of the utility model when being used to mine.
Fig. 2 is the structural representation of two-way zigzag coal cutting instrument among the utility model Fig. 1.
Fig. 3 is the A-A sectional view among the utility model Fig. 2.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described, but therefore the utility model is not limited among the described scope of embodiments.
Referring to Fig. 1; A kind of coal mining device of high-dipping ultra-thin coal seam manless working face; Comprise being located at air way 1 and once winch 5 and winch 6 once on one in the corresponding winch chamber 3 of air way 2 respectively, and the two-way zigzag coal cutting of the iron chains formula instrument 7 that is positioned at and can moves back and forth at work plane 4; The two ends of said two-way zigzag coal cutting instrument 7 form removable the fixed connection with the free end of 6 liang of steel strand ropes of last winch 5 and following winch respectively.
Referring to Fig. 2, said two-way zigzag coal cutting instrument 7 comprises length direction several coal cutting teeths 71 of setpoint distance at interval, and adjacent coal cutting teeth 71 is along circumferentially dislocation successively; The coal cutting work plane of part coal cutting teeth 71 and the coal cutting work plane of another part coal cutting teeth 71 are reverse.
Referring to Fig. 3, said two-way zigzag coal cutting instrument 7 also comprises iron chains 72; Said coal cutting teeth 71 is made up of coal cutting head 71a and connection handle 71b, and coal cutting head 71a is weldingly fixed on the corresponding chain link of iron chains 72 through connection handle 71b.
Referring to Fig. 2, the stent width of said coal cutting head 71a is 150mm.
Said going up also is respectively equipped with the directive wheel 10 that is used for the steel strand rope guiding between winch 5 and following winch 6 and the work plane 4.
120 ° of said adjacent coal cutting teeth 71 circumferential misalignment.Said adjacent coal cutting teeth 71 is spacing 100mm along its length.
The stent width of coal cutting head 71a in the present embodiment can also be other width in 100～200mm scope; Like 100mm, 120mm, 125mm, 175mm, 200mm etc., the actual coal seam thickness under concrete width can cut according to coal seam thickness and stent width is specifically definite.
Adjacent coal cutting teeth 71 circumferential misalignment in the present embodiment can also be other angles in 30 °～120 ° scopes, as 30 °, 45 °, 60 °, 90 ° etc.; Said adjacent coal cutting teeth 71 spacing along its length can also be other distances in 100～200mm scope, like 120mm, 150mm, 180mm, 200mm etc.; Dislocation angle and spacing cooperate to be chosen, with seam hardness character, drawworks horsepower and combine the stent width dimensions of coal cutting head 71a definite.
The coal mining device practical application of the utility model is when a certain high-dipping ultra-thin coal seam, and the coal seam mean obliquity is 67 °, and average thickness 0.46m can adopt index 1, the coefficient of variation 10.5%, true dip length 37m, coal seam Polodyakonov coefficient (f) 0.58.Last drawworks horsepower 55KW; Following drawworks horsepower 25KW; Adopt the artificial transmission of electric bell and phone and answer control signal, the manually-operated winch is coordinated folding and unfolding steel strand rope, 120 ° of two-way zigzag coal cutting instrument 7 adjacent coal cutting teeth 71 circumferential misalignment; Axial spacing 100mm, two-way zigzag coal cutting instrument 7 coal work stroke 51m; When the stent width of coal cutting teeth 71 is 100mm, average mining height 0.22m, coal recovery rate 61%, the about 11.7t of average class's output; When the stent width of coal cutting teeth 71 is 150mm, average mining height 0.35m, coal recovery rate 84.5%, the about 36t of average class's output; The amount of labour used 4 people.With comparing of prior art to the artificial pneumatic pick coal breakage of benching tunnelling method; Solved high-dipping ultra-thin coal seam labour intensive problem, year 2350000 yuan of human costs of saving, labor reduce to original sixth, and work efficiency can improve nearly 3 times; Work plane non-support, unmanned exploitation have been realized; Year practices thrift mine timber and consumes 840,000 yuan, simultaneously, has also solved work plane security threat problem.
Though more than combined accompanying drawing to describe the embodiment of the utility model; But those of ordinary skill in the art also can recognize in the scope to accompanying claims and make various variations or modification, and it is within the scope of the utility model and intention that these modifications and variation are interpreted as.
Claims (7)
1. the coal mining device of a high-dipping ultra-thin coal seam manless working face; It is characterized in that: comprise being located at air way (1) and once winch (5) and winch (6) once on one in the corresponding winch chamber (3) of air way (2) respectively, and the two-way zigzag coal cutting of the iron chains formula instrument (7) that is positioned at and can moves back and forth in work plane (4); The two ends of said two-way zigzag coal cutting instrument (7) form removable the fixed connection with the free end of last winch (5) and following winch (6) two steel strand ropes respectively.
2. the coal mining device of high-dipping ultra-thin coal seam manless working face according to claim 1; It is characterized in that: said two-way zigzag coal cutting instrument (7) comprises length direction several coal cutting teeths (71) of setpoint distance at interval, and adjacent coal cutting teeth (71) is along circumferentially dislocation successively; The coal cutting work plane of part coal cutting teeth (71) and the coal cutting work plane of another part coal cutting teeth (71) are reverse.
3. the coal mining device of high-dipping ultra-thin coal seam manless working face according to claim 2 is characterized in that: said two-way zigzag coal cutting instrument (7) also comprises iron chains (72); Said coal cutting teeth (71) is made up of coal cutting head (71a) and connection handle (71b), and coal cutting head (71a) is weldingly fixed on the corresponding chain link of iron chains (72) through connection handle (71b).
4. the coal mining device of high-dipping ultra-thin coal seam manless working face according to claim 3 is characterized in that: the stent width of said coal cutting head (71a) is 100～200mm.
5. the coal mining device of high-dipping ultra-thin coal seam manless working face according to claim 1 is characterized in that: said going up also is respectively equipped with the directive wheel (10) that is used for the steel strand rope guiding between winch (5) and following winch (6) and the work plane (4).
6. according to the coal mining device of any described high-dipping ultra-thin coal seam of claim manless working face in the claim 2～5, it is characterized in that: 30 °～120 ° of said adjacent coal cutting teeth (71) circumferential misalignment.
7. according to the coal mining device of any described high-dipping ultra-thin coal seam of claim manless working face in the claim 2～5, it is characterized in that: said adjacent coal cutting teeth (71) is interval 100～200mm along its length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205317151U CN202338341U (en) | 2011-12-19 | 2011-12-19 | Coal mining device on unmanned working surface of heavily-pitched super-thin coal seam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205317151U CN202338341U (en) | 2011-12-19 | 2011-12-19 | Coal mining device on unmanned working surface of heavily-pitched super-thin coal seam |
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| CN202338341U true CN202338341U (en) | 2012-07-18 |
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| CN2011205317151U Expired - Lifetime CN202338341U (en) | 2011-12-19 | 2011-12-19 | Coal mining device on unmanned working surface of heavily-pitched super-thin coal seam |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434153A (en) * | 2011-12-19 | 2012-05-02 | 重庆市能源投资集团科技有限责任公司 | Coal-mining device and coal-mining method of steeply inclined extremely thin coal seam manless working face |
| CN103485786A (en) * | 2013-09-11 | 2014-01-01 | 太原理工大学 | Steeply inclined coal seam strike long-wall mechanization mining method |
-
2011
- 2011-12-19 CN CN2011205317151U patent/CN202338341U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434153A (en) * | 2011-12-19 | 2012-05-02 | 重庆市能源投资集团科技有限责任公司 | Coal-mining device and coal-mining method of steeply inclined extremely thin coal seam manless working face |
| CN103485786A (en) * | 2013-09-11 | 2014-01-01 | 太原理工大学 | Steeply inclined coal seam strike long-wall mechanization mining method |
| CN103485786B (en) * | 2013-09-11 | 2016-01-20 | 太原理工大学 | A kind of half-edge coal seam moves towards longwall machinery and melts mining method |
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Granted publication date: 20120718 |