CN102418521A - 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
- Publication number
- CN102418521A CN102418521A CN2011102205483A CN201110220548A CN102418521A CN 102418521 A CN102418521 A CN 102418521A CN 2011102205483 A CN2011102205483 A CN 2011102205483A CN 201110220548 A CN201110220548 A CN 201110220548A CN 102418521 A CN102418521 A CN 102418521A
- Authority
- CN
- China
- Prior art keywords
- coal
- return airway
- winning machine
- pucking
- cutting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
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 mine underground mining method and apparatus, relate in particular to a kind of return airway base plate method for cleaning and equipment that is used 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 ultra high seam less than 8.0 meters coal seam.Once adopt complete thick work plane what ultra high seam was arranged, be referred to as the super large height mining face.
So-called pucking phenomenon receives the influence of mining operation exactly, and tunnel roof and floor and two is helped rock mass to produce distortion and in the tunnel, produced the upwards phenomenon of protuberance of displacement, roadway floor.
Because the mine pressure of super large height mining face is huge, and return airway generally is arranged in the side near minery, it is bigger to bear pressure with respect to other tunnels, therefore more is easy to generate the 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, on 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 handle it, and a kind of scheme that adopts at present is the artificial treatment method, promptly artificially digs with the spade shovel, 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, makes working surface production efficient very low, also causes the work plane goaf top plate in time not stride and falls to burying float coal, thereby cause the spontaneous combustion of goaf float coal easily.And, the method for employing artificial treatment, working strength of workers is big, poor stability.
The another kind of scheme that solves the tunnel pucking in the prior art is to adopt suspension device to come reinforcing soleplate; Preventing that base plate from deforming, broken problem such as expand, like CN101614130A, SU1627708A, the disclosed employing anchor pole of 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 big, the time of installing, adjusting is long, and cost is also higher, so adopt this technical scheme to exist very big problem.
Summary of the invention
To 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 through prolonging the intermediate channel of scratch board conveyor on work plane, makes the drive end unit of scratch board conveyor extend to the reinforcing wire preset distance far away place with return airway; B. said coal-winning machine moves on the intermediate channel of scratch board conveyor and carries out coal cutting along the work plane top and operate; C. when coal-winning machine moves to the near reinforcing wire of said 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 said pucking of cutting, coal-winning machine continues to advance with near the group far away to said return airway, so that accomplish the cutting to pucking on all base plates in the said return airway; E. after coal-winning machine is accomplished the 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,, 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 through prolonging the intermediate channel of work plane upper scraping plate transporter.
Preferably, the cutting pucking comprises: the cylinder of coal-winning machine is dropped to work plane base plate position, stretch into return airway incised pucking along work plane base plate height then.
Preferably, utilizing one of coal-winning machine to sidewinder tube cuts the pucking on the return airway inner bottom plating.
Preferably, in steps d, in the said 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 are when setpoint distance, and completion is to the cutting of pucking on all base plates in the said return airway.More preferably, said 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; Said equipment comprises scratch board conveyor, coal-winning machine; It is characterized in that; Said scratch board conveyor has the intermediate channel of prolongation, makes the drive end unit of scratch board conveyor can extend to reinforcing wire far away with return airway at a distance of the preset distance place; Said coal-winning machine has cylinder, on the intermediate channel of said scratch board conveyor, moves.
Preferably, scratch board conveyor has the intermediate channel of prolongation, makes 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.
With respect to prior art, base plate method for cleaning of the present invention carries out because the work of cleaning base plate can be mined with work plane simultaneously, 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 handles pucking.
And, because cleaning equipment of the present invention is the improvement on existing coal excavation apparatus, therefore make cleaning work more convenient.
In addition, the present invention need not use the suspension device that installation difficulty is big, 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 sketch map that pucking occurs;
Fig. 2 is the layout sketch map of a kind of specific embodiment middle scraper of the present invention transporter intermediate channel;
Fig. 3 is the work sketch map of coal-winning machine in a kind of specific embodiment of the present invention;
Fig. 4 is the work sketch map of coal-winning machine cleaning base plate in a kind of specific embodiment of the present invention;
Fig. 5 is the work sketch map of coal-winning machine cleaning base plate in a kind of specific embodiment of the present invention;
Fig. 6 is the work sketch map 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 make the drive end unit 210 of scratch board conveyor prolong and near the group far away 202 of return airway 220; Preferably; Distance between the drive end unit 210 of said scratch board conveyor and the reinforcing wire 202 far away is less than or equal to 500mm, in this distance, and the cleaning of pucking but also can reduce range ability as much as possible on the coal-winning machine that moves on the intermediate channel 201 of scratch board conveyor 200 not only can be accomplished whole base plate.As shown in Figure 2, along the trend of work plane, the group far away 202 of so-called return airway is exactly the left side rib of return airway 220 among the figure, promptly away from the rib of work plane one side; The nearly group 203 of so-called return airway is exactly the right side rib of return airway in scheming, promptly near the rib of work plane one side.So-called nearly reinforcing wire is meant the rib sideline of nearly group; So-called reinforcing wire far away is meant the rib sideline of group far away.
In conjunction with shown in Figure 3, coal-winning machine 200 is advanced on the intermediate channel 201 of scratch board conveyor.Because the drive end unit of scratch board conveyor prolongs the group far away 202 near return airway, therefore, coal-winning machine can march to suitable position, makes cylinder 204 can cut pucking 205, thereby realizes the purpose of cleaning base plate 205.
At step S02, coal-winning machine 200 begins on intermediate channel 201, to advance and mine operation.The coal mining operation of coal-winning machine 200 is to carry out through 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, can utilize the cylinder 204 (for example, roll left tube) of coal-winning machine 200 1 sides that the base plate of return airway is cleared up.
The tube that rolls left of coal-winning machine 200 is along the coal cutting of work plane top, and at step S03, when the nearly reinforcing wire place in cut to 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 tube and right cylinder) cuts the coal seam on one side; When coal-winning machine marches to the precalculated position, i.e. during the near reinforcing wire of cylinder coal cutting to return airway, coal-winning machine stops to mine.In the present invention, said 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 work plane base plate position, stretches into return airway along work plane base plate height then, 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 with near far helping to the tunnel, and is to accomplish 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 be confirmed according to concrete operating mode (pucking of different-thickness, intensity), do not give unnecessary details at this.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, accomplish cleaning to pucking on all base plates, preferably, said setpoint distance is less than or equal to 500mm.Said centre of the drum line is meant cylindrical center's line of coal mining machine roller.
At step S05, after coal-winning machine 200 was accomplished the cleanings 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, so that 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 certain distance that on paper direction, moves forward perpendicular to Figure of description of the present invention, the coal-winning machine that on the intermediate channel of scratch board conveyor, moves then 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 base plate arrangement next time, repeat above-mentioned steps S01 to step S05, the base plate complete liquidation until whole return aircourse finishes.
Correspondingly, the present invention also provides a kind of return airway base plate cleaning equipment that is used for the super large height mining face, and said 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, makes the drive end unit of scratch board conveyor prolong the group far away near return airway.
Coal-winning machine operates on the said intermediate channel, has cylinder on the coal-winning machine.Have pick on the cylinder, when cylinder rotates, utilize pick cutting coal seam, thereby realize exploitation 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 tube) 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 said 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, and until the reinforcing wire setpoint distance far away place that marches to centre of the drum's line and said return airway, thereby accomplishes the cutting to pucking on all base plates in the said return airway.
After coal-winning machine is accomplished the cutting to base plate; The cylinder of coal-winning machine is withdrawed from the tunnel; As shown in Figure 6, owing to coal-winning machine moves on the intermediate channel of scratch board conveyor, after the cylinder of coal-winning machine withdraws from return airway; The tail of scratch board conveyor certain distance that on the paper direction perpendicular to Figure of description of the present invention, moves forward, the coal-winning machine that on the intermediate channel of scratch board conveyor, moves then continue 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 describes through above-mentioned preferred implementation, its way of realization is not limited to above-mentioned embodiment.Should be realized that under 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. through on work plane, prolonging the intermediate channel of scratch board conveyor, make the drive end unit of scratch board conveyor extend to the reinforcing wire preset distance far away place with return airway;
B. said coal-winning machine moves on the intermediate channel of scratch board conveyor and carries out coal cutting along the work plane top and operate;
C. when coal-winning machine moves to the near reinforcing wire of said 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 cutting during said pucking, coal-winning machine continues to advance with near the group far away to said return airway, so that accomplish the cutting to pucking on all base plates in the said return airway;
E. after coal-winning machine is accomplished the 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. according to the said method of claim 1, it is characterized in that, in step a,, make the distance of reinforcing wire far away of drive end unit and the return airway of scratch board conveyor be less than or equal to 500mm through prolonging the intermediate channel of work plane upper scraping plate transporter.
3. according to the said method of claim 1, it is characterized in that the cutting pucking comprises: the cylinder of coal-winning machine is dropped to work plane base plate position, stretch into return airway incised pucking along work plane base plate height then.
4. according to the said method of claim 1, it is characterized in that, utilize one of coal-winning machine to sidewinder tube the pucking on the return airway inner bottom plating is cut.
5. according to the said method of claim 1; It is characterized in that, in steps d, when the said pucking of cutting; Coal-winning machine continues to march to centre of the drum's line and the return airway reinforcing wire far away of coal-winning machine when setpoint distance, accomplishes the cutting to pucking on all base plates in the said return airway.
6. according to the said method of claim 5, it is characterized in that said 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; Said equipment comprises scratch board conveyor, coal-winning machine; It is characterized in that; Said scratch board conveyor has the intermediate channel of prolongation, makes the drive end unit of scratch board conveyor can extend to reinforcing wire far away with return airway at a distance of the preset distance place;
Said coal-winning machine has cylinder, on the intermediate channel of said scratch board conveyor, moves.
8. equipment according to claim 7 is characterized in that scratch board conveyor has the intermediate channel of prolongation, makes 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.
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102418521A true CN102418521A (en) | 2012-04-18 |
| CN102418521B CN102418521B (en) | 2013-04-10 |
Family
ID=45943141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102418521B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089304A (en) * | 2012-12-21 | 2013-05-08 | 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 | Squeegee conveyor for coal mine comprehensive mining working 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 | Squeegee conveyor for coal mine comprehensive mining working face |
Non-Patent Citations (2)
| Title |
|---|
| 《河北煤炭》 19880228 明晓远 EL-160S型清底机 40-41 , 第1期 * |
| 明晓远: "EL—160S型清底机", 《河北煤炭》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089304A (en) * | 2012-12-21 | 2013-05-08 | 太原理工大学 | Heaving floor monitoring method |
| CN103089304B (en) * | 2012-12-21 | 2015-03-25 | 太原理工大学 | Heaving floor monitoring method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102418521B (en) | 2013-04-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104405437B (en) | A kind of solid filling with combine the hybrid working face mining method of adopting | |
| CN104500069B (en) | Continuous coal mining machine top-coal mining process for extremely-thick coal seam bound coal | |
| CN105569701B (en) | Suspension device is tunneled suitable for the step type that hard-rock tunnel is tunneled | |
| CN105386771B (en) | Shield type anchor driving machine | |
| CN104612693B (en) | Continuous coal-mining technology for strip mine | |
| CN104747199B (en) | A kind of open type TBM with section of jurisdiction installation function | |
| CN104775819A (en) | Deep inclined coal seam mining roadway mine pressure control mining method | |
| CN105952453B (en) | Longwell protrusive working face of coal seam mechanization exploits complete set of equipments without lane | |
| CN108952720B (en) | Method for reducing primary caving step by mechanically cutting hard direct roof during initial mining | |
| CN103742176A (en) | Excavating and anchor-supporting all-in-one unit | |
| CN103174448A (en) | In-time supporting method for roadway fully-mechanized excavating operation | |
| CN105736044A (en) | Method for rapidly withdrawing fully mechanized coal mining face device of steep seam | |
| CN104405392B (en) | Three soft high seam tunnel jackings are kept on file anchor rete cord active support longwall top coal caving method | |
| CN106437734B (en) | The shape of a hoof shield excavating device and tunnel excavation method of anhydrous soft soil tunnel | |
| CN203742636U (en) | Tunneling, supporting and anchoring integrated unit | |
| CN105240016A (en) | Filling mining method with gentle-dip lamellar jade ore block cutting and strip dragging | |
| CN108425674B (en) | A kind of coal-mining method of open coal mine end side coal | |
| CN103821530A (en) | Continuous excavating equipment and process for roadways | |
| WO2024066529A1 (en) | Mining method for underground bauxite large-dip-angle medium-thick ore bed dual-mining machine | |
| CN102418521B (en) | Method and equipment for clearing baseplates of return airway of ultra-large mining height working face | |
| CN104533417A (en) | Dual-system two-hardness short-wall coal seam mining method | |
| CN104863599B (en) | Fully-mechanized mining working synchronously expands side installation method and support system | |
| CN203285464U (en) | Development cover support under coal mine | |
| CN102410016B (en) | Rectangular full-section continuous miner | |
| CN104121022A (en) | Coal mine roadway opening tunneling process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |