CN102418521B - Method and equipment for clearing baseplates of return airway of ultra-large mining height working face - Google Patents
Method and equipment for clearing baseplates of return airway of ultra-large mining height working face Download PDFInfo
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- CN102418521B CN102418521B CN 201110220548 CN201110220548A CN102418521B CN 102418521 B CN102418521 B CN 102418521B CN 201110220548 CN201110220548 CN 201110220548 CN 201110220548 A CN201110220548 A CN 201110220548A CN 102418521 B CN102418521 B CN 102418521B
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- coal
- return airway
- winning machine
- pucking
- cutting
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000005065 mining Methods 0.000 title claims abstract description 26
- 239000003245 coal Substances 0.000 claims abstract description 33
- 238000005520 cutting process Methods 0.000 claims abstract description 31
- 238000004140 cleaning Methods 0.000 claims description 26
- 230000003014 reinforcing effect Effects 0.000 claims description 22
- 238000007747 plating Methods 0.000 claims description 5
- 241000271460 Crotalus cerastes Species 0.000 claims description 2
- 238000007790 scraping Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 6
- 239000000725 suspension Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005021 gait Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
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Abstract
The invention discloses a method for clearing baseplates, and the method comprises the following steps: extending a middle groove of a scraper conveyor on a working face to extend the afterbody part of the scraper conveyor to the position which has a preset distance with a far upper line of a return airway; enabling a coal mining machine to run on the middle groove of the scraper conveyor and perform coal cutting operation along the top of the working face; stopping coal mining when the coal mining machine runs to a near upper line of the return airway and utilizing a roller of the coal mining machine to cut bottom drums on the baseplates in the return airway; enabling the coal mining machine to advance continuously so as to approach to a far upper of the return airway and further complete the cutting of the bottom drums on all the baseplates in the return airway; and withdrawing the roller of the coal mining machine out of a laneway after the coal mining machine completes the cutting of the baseplates, and enabling the coal mining machine to advance continuously for coal mining. The invention further discloses equipment for clearing the baseplates of the return airway of the ultra-large mining height working face. By adopting the method and equipment disclosed by the invention, the clearing of the baseplates and the advancing of the working face are simultaneously performed, thereby improving the production efficiency.
Description
Technical field
The present invention relates to down-hole exploitation method and equipment, relate in particular to a kind of return airway base plate method for cleaning and equipment for the super large height mining face.
Background technology
In the coal mining field, to divide according to coal seam thickness, coal seam thickness is greater than 6.5 meters and be called super high seam less than 8.0 meters coal seam.Once adopt complete thick work plane what super high seam was arranged, be referred to as the super large height mining face.
So-called pucking phenomenon is subjected to the impact of mining operation exactly, and tunnel roof and floor and two is helped rock mass to produce distortion and produce the upwards phenomenon of protuberance of displacement, roadway floor in the tunnel.
Because the mine pressure of super large height mining face is huge, and return airway generally is arranged in the side near minery, and it is larger to bear pressure with respect to other tunnels, therefore easier generation pucking phenomenon.As shown in Figure 1, on a work plane, return airway has comprised top board 102, base plate 103, return airway tunnel 110, and the base plate 103 in return airway tunnel 110 has produced pucking 101.
The pucking that the return airway base plate produces will block on the work plane equipment pushes ahead, and must process it, and a kind of scheme that adopts at present is the artificial treatment method, namely manually digs with spade, and shoulder is lifted basket fortune.The shortcoming of labor cleaning's return airway base plate is: efficient is low, therefore causes face propulsion speed slow, so that working surface production efficient is very low, also causes the work plane goaf top plate in time not stride and falls to burying float coal, thereby cause easily the spontaneous combustion of goaf float coal.And, the method for employing artificial treatment, workman's labour intensity is large, poor stability.
The another kind of scheme that solves Floor Heave in Roadway in the prior art is to adopt suspension device to come reinforcing soleplate, preventing that base plate from deforming, the broken problem such as swollen, such as CN101614130A, SU1627708A, the disclosed employing anchor pole of the CN101915108A technical scheme as suspension device; And for example the disclosed employing support of SU1698450A is as the technical scheme of suspension device.But because the technical difficulty of down-hole installation suspension device is very large, the time of installing, adjusting is long, and cost is also higher, so adopt this technical scheme to exist very large problem.
Summary of the invention
For the defective of prior art, the purpose of this invention is to provide a kind of efficient, safe, easy roadway floor method for cleaning and equipment.
Base plate method for cleaning provided by the invention may further comprise the steps: a. is by prolonging the intermediate channel of scratch board conveyor at work plane, makes the drive end unit of scratch board conveyor extend to reinforcing wire preset distance far away place with return airway; B. described coal-winning machine carries out the coal cutting operation in the intermediate channel operation of scratch board conveyor and along the work plane top; C. when coal-winning machine moves to the near reinforcing wire of described return airway, stop to mine, and utilize the cylinder of coal-winning machine that the pucking on the return airway inner bottom plating is cut; D. in the described pucking of cutting, coal-winning machine continues to advance with close side far away to described return airway, in order to finish the cutting to pucking on all base plates in the described return airway; E. after coal-winning machine is finished cutting to base plate, the cylinder of coal-winning machine is withdrawed from the tunnel, the coal-winning machine coal mining that continues to advance.
Preferably, in step a, by prolonging the intermediate channel of work plane upper scraping plate transporter, make the drive end unit of scratch board conveyor and the reinforcing wire distance far away of return airway be less than or equal to 500mm.
Preferably, the cutting pucking comprises: the cylinder of coal-winning machine is dropped to the floor undulation position, then stretch into along the floor undulation height and cut pucking in the return airway.
Preferably, utilizing one of coal-winning machine to sidewinder cylinder cuts the pucking on the return airway inner bottom plating.
Preferably, in steps d, in the described pucking of cutting, centre of the drum's line that coal-winning machine continues to march to coal-winning machine and return airway reinforcing wire far away during setpoint distance, are finished the cutting to pucking on all base plates in the described return airway apart.More preferably, described setpoint distance is less than or equal to 500mm.
The present invention also provides a kind of return airway base plate cleaning equipment that is used for the super large height mining face that adopts said method, described equipment comprises scratch board conveyor, coal-winning machine, it is characterized in that, described scratch board conveyor has the intermediate channel of prolongation, so that the drive end unit of scratch board conveyor can extend to the reinforcing wire far away of return airway at a distance of the preset distance place; Described coal-winning machine has cylinder, moves in the intermediate channel of described scratch board conveyor.
Preferably, scratch board conveyor has the intermediate channel of prolongation, so that the reinforcing wire distance far away of the drive end unit of scratch board conveyor and return airway is less than or equal to 500mm.
With respect to prior art, base plate method for cleaning of the present invention carries out simultaneously because the work of cleaning base plate can be mined with work plane, has therefore improved production efficiency.Method for cleaning of the present invention has not only reduced cost of production, and has reduced the hidden danger of security incident owing to saved the full-time staff who processes pucking.
And, because cleaning equipment of the present invention is the improvement on existing coal excavation apparatus, therefore so that cleaning work is more convenient.
In addition, the present invention need not use the suspension device that installation difficulty is large, cost is high with respect to prior art, only needs to use transporter and coal-winning machine just can remove pucking on the return airway base plate, and is simple and easy to do.
Description of drawings
Fig. 1 is the return airway schematic diagram that pucking occurs;
Fig. 2 is the layout schematic diagram of a kind of specific embodiment middle scraper of the present invention transporter intermediate channel;
Fig. 3 is the work schematic diagram of coal-winning machine in a kind of specific embodiment of the present invention;
Fig. 4 is the work schematic diagram of coal-winning machine cleaning base plate in a kind of specific embodiment of the present invention;
Fig. 5 is the work schematic diagram of coal-winning machine cleaning base plate in a kind of specific embodiment of the present invention;
Fig. 6 is the work schematic diagram of coal-winning machine cleaning base plate in a kind of specific embodiment of the present invention;
Fig. 7 is the flow chart of the return airway base plate method for cleaning of a kind of specific embodiment of the present invention.
The specific embodiment
Shown in Fig. 2-7, base plate method for cleaning of the present invention is to utilize existing equipment that the base plate in tunnel is cleared up.Wherein, existing equipment comprises coal-winning machine 200.In the method for cleaning of a kind of specific embodiment of the present invention, may further comprise the steps:
At first, at step S01, set up the intermediate channel 201 of the scratch board conveyor on work plane.Lay the intermediate channel that increases, so that so that the drive end unit 210 of scratch board conveyor prolongs and the side far away 202 of close return airway 220, preferably, distance between the drive end unit 210 of described scratch board conveyor and the reinforcing wire 202 far away is less than or equal to 500mm, in this distance, the cleaning of pucking but also can reduce as much as possible range ability on the coal-winning machine 200 of intermediate channel 201 operation of scratch board conveyor not only can be finished whole base plate.As shown in Figure 2, along the trend of work plane, the side far away 202 of so-called return airway is exactly the left side rib of return airway 220 among the figure, namely away from the rib of work plane one side; The nearly side 203 of so-called return airway is exactly the right side rib of return airway among the figure, i.e. the rib of close work plane one side.So-called nearly reinforcing wire refers to the rib sideline of nearly side; So-called reinforcing wire far away refers to the rib sideline of side far away.
In conjunction with shown in Figure 3, coal-winning machine 200 is advanced in the intermediate channel 201 of scratch board conveyor.Because the drive end unit of scratch board conveyor prolongs the side far away 202 near return airway, therefore, coal-winning machine can march to suitable position, so that cylinder 204 can cut pucking 205, thus the purpose that realizes clearing up pucking 205.
At step S02, coal-winning machine 200 beginning is in intermediate channel 201 operation of advancing and mine.The coal mining operation of coal-winning machine 200 is to be undertaken by the cutting drum on the coal-winning machine 200 (being called for short " cylinder ") 204, has the cut tooth on the cylinder, when cylinder rotates, utilizes pick cutting coal seam, thereby realizes the exploitation to the coal seam.In the specific embodiment of the present invention, coal-winning machine 200 has left and right two cylinders 204, wherein, because return airway is positioned at the side of work plane, therefore, for example can utilize the cylinder 204(of coal-winning machine 200 1 sides, cylinder rolls left) base plate of return airway is cleared up.
The cylinder that rolls left of coal-winning machine 200 is along the coal cutting of work plane top, and at step S03, when cut during to the nearly reinforcing wire place in tunnel, coal-winning machine 200 stops to mine and beginning to carry out the base plate cleaning operation.Particularly: coal-winning machine is to advance at work plane to the tail position from the head position of scratch board conveyor, coal-winning machine is advanced on one side, cylinder on the coal-winning machine (comprising roll left cylinder and right cylinder) cuts the coal seam on one side, when coal-winning machine marches to the precalculated position, when being the cylinder coal cutting to the near reinforcing wire of return airway, coal-winning machine stops to mine.In the present invention, described precalculated position is the coal-winning machine position that a center line overlaps with the nearly reinforcing wire of return airway of rolling left.
After coal-winning machine stops to mine, begin to carry out the base plate cleaning operation.Particularly, as shown in Figure 4, preferably, the cylinder of coal-winning machine drops to the floor undulation position, then stretches into return airway along the floor undulation height, and begins to cut pucking.Moving direction during coal-winning machine cutting pucking is consistent with the direct of travel of coal-winning machine.
At step S04, in the cutting pucking, coal-winning machine continues to move ahead and far helps to the tunnel with close, to finish the cutting to all puckings, as shown in Figure 5.The gait of march, the cutting power that it will be understood by those skilled in the art that coal-winning machine all can determine that therefore not to repeat here according to concrete operating mode (pucking of different-thickness, intensity).When coal-winning machine marches to centre of the drum's line and tunnel reinforcing wire far away at a distance of the position of setpoint distance, finish the cleaning to pucking on all base plates, preferably, described setpoint distance is less than or equal to 500mm.Described centre of the drum line refers to cylindrical center's line of coal mining machine roller.
At step S05, after coal-winning machine 200 was finished cleaning to whole base plate in the return airway, as shown in Figure 6, the cylinder of coal-winning machine withdrawed from return airway, and coal-winning machine continues to advance, in order to carry out follow-up coal mining operation.For example, in Fig. 6, after the cylinder of coal-winning machine withdraws from return airway, scratch board conveyor tail 210 moves forward certain distance in the paper direction perpendicular to Figure of description of the present invention, then the coal-winning machine that moves in the intermediate channel of scratch board conveyor continues to carry out the coal cutting operation along the direction of the paper that is parallel to Figure of description of the present invention again, and, when needs carry out next time base plate arrangement, repeat above-mentioned steps S01 to step S05, until the base plate complete liquidation of whole return aircourse is complete.
Correspondingly, the present invention also provides a kind of return airway base plate cleaning equipment for the super large height mining face, and described equipment comprises: scratch board conveyor, coal-winning machine.Wherein: coal-winning machine can adopt existing any suitable type; Scratch board conveyor then has the intermediate channel of prolongation, so that the drive end unit of scratch board conveyor prolongs the side far away near return airway.
Coal-winning machine operates on the described intermediate channel, has cylinder on the coal-winning machine.Have pick on the cylinder, when cylinder rotates, utilize pick cutting coal seam, thereby realize the exploitation to the coal seam.In the specific embodiment of the present invention, coal-winning machine has left and right two cylinders, wherein, because return airway is positioned at the side of work plane, therefore, can utilize the cylinder (for example, roll left cylinder) of coal-winning machine one side that the base plate of return airway is cleared up.
When coal-winning machine moves to the near reinforcing wire of described return airway, stop to mine, and utilize the cylinder of coal-winning machine that the pucking on the return airway inner bottom plating is cut.
In the cutting pucking, coal-winning machine continues to advance, until march to the reinforcing wire setpoint distance far away place of centre of the drum's line and described return airway, thus finish the cutting to pucking on all base plates in the described return airway.
After coal-winning machine is finished cutting to base plate, the cylinder of coal-winning machine is withdrawed from the tunnel, as shown in Figure 6, because coal-winning machine moves in the intermediate channel of scratch board conveyor, after the cylinder of coal-winning machine withdraws from return airway, the tail of scratch board conveyor moves forward certain distance in the paper direction perpendicular to Figure of description of the present invention, and the coal-winning machine that then moves in the intermediate channel of scratch board conveyor continues to carry out the coal cutting operation along the direction of the paper that is parallel to Figure of description of the present invention again.
Although the present invention is described by above-mentioned preferred embodiment, its way of realization is not limited to above-mentioned embodiment.Should be realized that in the situation that does not break away from purport of the present invention those skilled in the art can make different variations and modification to the present invention.
Claims (8)
1. a return airway base plate method for cleaning that is used for the super large height mining face is characterized in that, said method comprising the steps of:
A. by prolong the intermediate channel of scratch board conveyor at work plane, make the drive end unit of scratch board conveyor extend to reinforcing wire preset distance far away place with return airway;
B. described coal-winning machine carries out the coal cutting operation in the intermediate channel operation of scratch board conveyor and along the work plane top;
C. when coal-winning machine moves to the near reinforcing wire of described return airway, stop to mine, and utilize the cylinder of coal-winning machine that the pucking on the return airway inner bottom plating is cut;
D. when the described pucking of cutting, coal-winning machine continues to advance with close side far away to described return airway, in order to finish the cutting to pucking on all base plates in the described return airway;
E. after coal-winning machine is finished cutting to base plate, the cylinder of coal-winning machine is withdrawed from the tunnel, the coal-winning machine coal mining that continues to advance.
2. described method according to claim 1 is characterized in that, in step a, by prolonging the intermediate channel of work plane upper scraping plate transporter, makes the distance of the reinforcing wire far away of the drive end unit of scratch board conveyor and return airway be less than or equal to 500mm.
3. described method according to claim 1 is characterized in that, the cutting pucking comprises: the cylinder of coal-winning machine is dropped to the floor undulation position, then stretch into along the floor undulation height and cut pucking in the return airway.
4. described method according to claim 1 is characterized in that, utilizes one of coal-winning machine to sidewinder cylinder the pucking on the return airway inner bottom plating is cut.
5. described method according to claim 1, it is characterized in that, in steps d, when the described pucking of cutting, coal-winning machine continues to march to centre of the drum's line of coal-winning machine and return airway reinforcing wire far away when setpoint distance, finishes the cutting to pucking on all base plates in the described return airway.
6. described method according to claim 5 is characterized in that described setpoint distance is less than or equal to 500mm.
7. return airway base plate cleaning equipment that utilizes the return airway base plate method for cleaning that is used for the super large height mining face of claim 1, described equipment comprises scratch board conveyor, coal-winning machine, it is characterized in that, described scratch board conveyor has the intermediate channel of prolongation, so that the drive end unit of scratch board conveyor can extend to the reinforcing wire far away of return airway at a distance of the preset distance place;
Described coal-winning machine has cylinder, moves in the intermediate channel of described scratch board conveyor.
8. equipment according to claim 7 is characterized in that, the prolongation intermediate channel of scratch board conveyor is so that the reinforcing wire distance far away of the drive end unit of scratch board conveyor and return airway is less than or equal to 500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110220548 CN102418521B (en) | 2011-08-02 | 2011-08-02 | Method and equipment for clearing baseplates of return airway of ultra-large mining height working face |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110220548 CN102418521B (en) | 2011-08-02 | 2011-08-02 | Method and equipment for clearing baseplates of return airway of ultra-large mining height working face |
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| CN102418521A CN102418521A (en) | 2012-04-18 |
| CN102418521B true CN102418521B (en) | 2013-04-10 |
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| CN 201110220548 Active CN102418521B (en) | 2011-08-02 | 2011-08-02 | Method and equipment for clearing baseplates of return airway of ultra-large mining height working face |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103089304B (en) * | 2012-12-21 | 2015-03-25 | 太原理工大学 | Heaving floor monitoring method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU579434A1 (en) * | 1976-04-07 | 1977-11-05 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт Книуи | Track-ripping machine |
| GB2098260A (en) * | 1981-05-08 | 1982-11-17 | Taiheiyo Eng Au Pty | A shearer |
| CN2712858Y (en) * | 2004-07-16 | 2005-07-27 | 杜文明 | Scraper conveyor for fully mechanized coal mining face |
-
2011
- 2011-08-02 CN CN 201110220548 patent/CN102418521B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU579434A1 (en) * | 1976-04-07 | 1977-11-05 | Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Угольный Институт Книуи | Track-ripping machine |
| GB2098260A (en) * | 1981-05-08 | 1982-11-17 | Taiheiyo Eng Au Pty | A shearer |
| CN2712858Y (en) * | 2004-07-16 | 2005-07-27 | 杜文明 | Scraper conveyor for fully mechanized coal mining face |
Non-Patent Citations (2)
| Title |
|---|
| EL—160S型清底机;明晓远;《河北煤炭》;19880228(第1期);40-41 * |
| 明晓远.EL—160S型清底机.《河北煤炭》.1988,(第1期),40-41. |
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