CN210178416U - Gob-side entry retaining gangue blocking system - Google Patents
Gob-side entry retaining gangue blocking system Download PDFInfo
- Publication number
- CN210178416U CN210178416U CN201920655087.4U CN201920655087U CN210178416U CN 210178416 U CN210178416 U CN 210178416U CN 201920655087 U CN201920655087 U CN 201920655087U CN 210178416 U CN210178416 U CN 210178416U
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- Prior art keywords
- waste rock
- arc
- gangue
- rock blocking
- net
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 126
- 239000010878 waste rock Substances 0.000 claims abstract description 122
- 230000005484 gravity Effects 0.000 claims abstract description 36
- 238000005452 bending Methods 0.000 claims description 5
- 238000005065 mining Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000003245 coal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model provides a gob entry keeps off cash system, this system mainly include arc fender cash net, gravity sensor, fender cash device and processing apparatus etc. processing apparatus respectively with gravity sensor and fender cash device signal connection. When the gangue slides under the action of gravity, the gangue can slide on one side of the arc gangue-blocking net close to the goaf due to the blocking of the arc gangue-blocking net. If the downward sliding amount of the gangue does not exceed the gravity pressure range set by the gravity sensor, the gangue stopping device cannot slide relative to the arc gangue stopping net, namely the arc gangue stopping net can bear the weight of the gangue. If the downward sliding amount of the waste rock exceeds the gravity pressure range set by the gravity sensor, the gravity sensor can send a signal to the processing device, and the processing device controls the waste rock blocking device to slide towards the arc-shaped waste rock blocking net and contact with the arc-shaped waste rock blocking net, so that the waste rock blocking effect of the arc-shaped waste rock blocking net is increased, and the safety of the arc-shaped waste rock blocking net is improved.
Description
Technical Field
The utility model relates to a colliery technical field especially relates to a gob entry keeps off cash system.
Background
In the coal mining process, in order to recover the protective coal pillars reserved in the traditional mining mode, the method of reserving along the edge of a goaf at the position of an original crossheading is usually adopted at present, namely, the method of reserving along the goaf is adopted, and then the coal loss can be avoided.
When the gob-side entry retaining technology is adopted, after a coal face is mined, a top plate is easy to fall off in a large area in a goaf, so that gangue is easy to fall off to a roadway under the action of gravity, operators or coal mining equipment are easy to be injured by smashing, and therefore gob-side entry retaining has high requirements on mining and supporting.
At present, a gangue blocking support is generally adopted in the aspect of support, for example, a gangue blocking net is generally adopted. Because the waste rock blocking net can only bear certain gravity, when the sliding amount of the waste rock is too large, the waste rock blocking net is easy to damage, operators or equipment are easy to hurt, and the production safety problem is caused.
Disclosure of Invention
The utility model provides a gob entry keeps off cash system to solve the lower problem of present fender cash net security.
The utility model provides a gob entry keeps off cash system, include: the arc-shaped waste rock blocking net is arranged between the goaf surface and the roadway, and the upper end and the lower end of the arc-shaped waste rock blocking net are respectively connected with the upper bottom surface and the lower bottom surface of the roadway; the arc-shaped waste rock blocking net is arranged in a bending way towards the roadway direction;
a top plate is fixedly arranged on the upper bottom surface, a bottom plate is fixedly arranged on the lower bottom surface, and the upper end and the lower end of the arc-shaped waste rock blocking net are respectively abutted against the top plate and the bottom plate;
a gravity sensor is arranged on one side of the arc-shaped waste rock blocking net, which is far away from the goaf surface, and the gravity sensor is arranged in the middle of the arc-shaped waste rock blocking net;
a sliding bottom plate, a waste rock blocking device and a processing device are further arranged in the roadway, the waste rock blocking device and the processing device are arranged on the sliding bottom plate, the waste rock blocking device slides relative to the arc-shaped waste rock blocking net, and the height of the waste rock blocking device is the same as the distance between the top plate and the bottom plate;
and the processing device is in signal connection with the gravity sensor and the waste rock blocking device respectively.
Preferably, the waste rock blocking device comprises:
a supporting seat;
the supporting column and the motor driver are arranged on the supporting seat;
the horizontal rod and the telescopic supporting rod are arranged at the top of the supporting column;
the supporting column is movably linked with the horizontal rod, and two ends of the telescopic supporting rod are respectively connected with the end part of the horizontal rod far away from the supporting column and the supporting column;
the motor driver is in signal connection with the processing device.
Preferably, a first sliding groove is formed in the sliding bottom plate, and a second sliding groove is formed in the bottom plate; the first sliding groove is connected with the notch of the second sliding groove, and the waste rock blocking device slides in the first sliding groove and the second sliding groove.
Preferably, automatic locking devices are respectively arranged on two sides of the second sliding chute.
Preferably, the support column is a hydraulic telescopic column.
Preferably, the telescopic supporting rod is a hydraulic telescopic column.
Preferably, the length of the horizontal bar is less than or equal to the width of the top plate.
Preferably, the device further comprises a power supply which is electrically connected with the processing device and the motor driver respectively.
The embodiment of the utility model provides a technical scheme can include following beneficial effect:
the utility model provides a gob entry waste rock blocking system, which comprises an arc waste rock blocking net arranged between a mining surface and a tunnel, wherein the upper end and the lower end of the arc waste rock blocking net are respectively contacted with the upper bottom surface and the lower bottom surface of the tunnel; the arc-shaped gangue blocking net is bent towards the roadway direction; a top plate is fixedly arranged on the upper bottom surface, a bottom plate is fixedly arranged on the lower bottom surface, and the upper end and the lower end of the arc-shaped waste rock blocking net are respectively abutted against the top plate and the bottom plate; a gravity sensor is arranged on one side of the arc-shaped waste rock blocking net, which is far away from the goaf surface, and the gravity sensor is arranged in the middle of the arc-shaped waste rock blocking net; a sliding bottom plate, a waste rock blocking device and a processing device are further arranged in the roadway, the waste rock blocking device is arranged on the sliding bottom plate and slides relative to the arc-shaped waste rock blocking net, and the height of the waste rock blocking device is the same as the distance between the top plate and the bottom plate; and the processing device is in signal connection with the gravity sensor and the waste rock blocking device respectively. When the gangue slides under the action of gravity, the gangue can slide on one side of the arc gangue-blocking net close to the goaf due to the blocking of the arc gangue-blocking net. If the downward sliding amount of the gangue does not exceed the gravity pressure range set by the gravity sensor, the gangue stopping device cannot slide relative to the arc gangue stopping net, namely the arc gangue stopping net can bear the weight of the gangue. If the downward sliding amount of the waste rock exceeds the gravity pressure range set by the gravity sensor, the gravity sensor can send a signal to the processing device, and the processing device controls the waste rock blocking device to slide towards the arc-shaped waste rock blocking net and contact with the arc-shaped waste rock blocking net, so that the waste rock blocking effect of the arc-shaped waste rock blocking net is increased, and the safety of the arc-shaped waste rock blocking net is improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is an application state diagram of a gob-side entry retaining gangue stopping system provided by the embodiment of the utility model;
fig. 2 is a signal circuit diagram of a waste rock blocking device provided by the embodiment of the invention;
FIG. 3 is a structural diagram of a state of the waste rock blocking device provided by the embodiment of the invention when in operation;
FIG. 4 is a structural diagram of a state of the waste rock blocking device provided by the embodiment of the invention when not in operation;
fig. 5 is a left side view of fig. 3 provided in accordance with an embodiment of the present invention;
fig. 6 is a top view of the sliding bottom plate and the bottom plate according to the embodiment of the present invention;
the symbols represent:
1-mining empty face, 2-roadway, 3-arc gangue blocking net, 4-upper bottom face, 5-lower bottom face, 6-top plate, 7-bottom plate, 8-gravity sensor, 9-sliding bottom plate, 10-gangue blocking device, 11-processing device, 12-first chute, 13-second chute, 14-automatic locking device, 15-power supply, 16-gangue, 101-supporting seat, 102-supporting column, 103-motor driver, 104-horizontal rod and 105-telescopic supporting rod.
Detailed Description
Referring to fig. 1, fig. 1 is an application state diagram of a gob-side entry retaining gangue stopping system according to an embodiment of the present invention. As can be seen from the attached drawing 1, the embodiment of the utility model provides a gob entry waste rock retaining system is located between mining face 1 and tunnel 2. Specifically, the embodiment of the utility model provides a gob entry waste rock blocking system is including setting up arc waste rock blocking net 3 between face 1 and tunnel 2 of taking a hole, and the upper and lower both ends of arc waste rock blocking net 3 respectively with tunnel 2 last bottom surface 4 and lower bottom surface 5 department of meeting mutually, arc waste rock blocking net 3 offsets with tunnel 2's last bottom surface 4 and lower bottom surface 5 promptly to last bottom surface 4 and lower bottom surface 5 through tunnel 2 support arc waste rock blocking net 3.
The arc waste rock blocking net 3 is arranged in a bending mode towards the direction of the roadway 2, and at the moment, the arc waste rock blocking net 3 has strong bending stress. When the waste rock 16 in the goaf slides off, the waste rock 16 slides off to the arc-shaped waste rock blocking net 3. Under the action of stronger bending stress of the arc-shaped waste rock blocking net 3, the arc-shaped waste rock blocking net 3 can support more waste rocks 16.
For further fixed arc waste rock blocking net 3 and make arc waste rock blocking net 3 bear more waste rock 16, in the embodiment of the utility model, go up fixed roof 6 that is equipped with on bottom surface 4, the fixed bottom plate 7 that is equipped with on lower bottom surface 5. At the moment, the upper end and the lower end of the arc-shaped waste rock blocking net 3 are respectively abutted against the top plate 6 and the bottom plate 7, the top plate 6 and the bottom plate 7 have acting force towards the direction of the goaf 1 to the arc-shaped waste rock blocking net 3, and therefore the waste rock resistance of the arc-shaped waste rock blocking net 3 can be enhanced through the top plate 6 and the bottom plate 7.
The tunnel 2 is also internally provided with a sliding bottom plate 9, and a waste rock blocking device 10 and a processing device 11 which are arranged on the sliding bottom plate 9. Wherein, the processing device 11 is respectively connected with the gravity sensor 8 and the waste rock blocking device 10 through signals so as to respectively receive detection data transmitted by the gravity sensor 8 and control the waste rock blocking device 10 to slide, and a circuit diagram is shown in figure 2. The waste rock blocking device 10 can further enhance the waste rock resistance of the arc-shaped waste rock blocking net 3.
Specifically, one side of the arc waste rock blocking net 3, which is far away from the goaf surface 1, is provided with a gravity sensor 8, and the gravity sensor 8 is arranged in the middle of the arc waste rock blocking net 3. The gravity sensor 8 can detect the weight of the gangue 16 born by the arc gangue blocking net 3, and sends the detected data to the processing device 11, so that the processing device 11 can process the detected data conveniently. The waste rock blocking device 10 can slide relative to the arc-shaped waste rock blocking net 3 and then slide into the arc-shaped waste rock blocking net 3. In order to enhance the gangue resistance of the arc gangue blocking net 3, the gangue blocking device 10 can enter between the top plate 6 and the bottom plate 7, and therefore the height of the gangue blocking device 10 is the same as the distance between the top plate 6 and the bottom plate 7.
Referring to fig. 3-5, wherein fig. 3 shows a state structure view of the waste rock blocking device 10 when in operation, fig. 4 shows a state structure view of the waste rock blocking device 10 when not in operation, and fig. 5 shows a left side view of fig. 4. As can be seen in fig. 3-5, the waste rock retaining device 10 includes a support base 101, a support post 102, a motor drive 103, a horizontal bar 104, and a telescoping support bar 105.
Specifically, the support base 101 is a support member and is located at the lowest end of the waste rock blocking device 10. The support seat 101 is provided with a support column 102 and a motor driver 103, wherein the support column 102 is a support part of the waste rock blocking device 10 in the vertical direction, and the motor driver 103 is a part for driving the support seat 101 to move so as to drive the support column 102 to slide relative to the arc-shaped waste rock blocking net 3. The top of the supporting column 102 is provided with a horizontal rod 104 and a telescopic supporting rod 105, wherein the horizontal rod 104 is a supporting part of the waste rock blocking device 10 in the horizontal direction, and the telescopic supporting rod 105 is used for supporting the horizontal rod 104 to be in a horizontal state. In the embodiment of the present application, the supporting post 102 and the horizontal rod 104 are movably linked, so that the horizontal rod 104 can converge to the supporting post 102 when not in operation, thereby reducing the occupied space of the retractable supporting rod 101. When the waste rock blocking device 10 works, the supporting columns 102 and the horizontal rods 104 are in a vertical state. Since the horizontal bar 104 is used for supporting the top plate 6, in order to enhance the supporting force of the horizontal bar 104, in the embodiment of the present invention, a retractable supporting bar 105 is provided between the supporting column 102 and the horizontal bar 104. Further, two ends of the retractable support rod 105 are respectively connected to the end of the horizontal rod 104 away from the support column 102 and the support column 102. Preferably, the supporting column 102 is a hydraulic telescopic column, so as to realize automatic control of the supporting column 102 and the horizontal rod 104 by the processing device 11.
Further, the telescopic supporting rod 105 is a hydraulic telescopic column, so that the occupied space of the waste rock blocking device 10 can be reduced. When the waste rock blocking device 10 works, in order to enable the waste rock blocking device 10 to slide into the arc-shaped waste rock blocking net 3 and simultaneously reduce the working space of the waste rock blocking device 10, the length of the horizontal rod 104 is smaller than or equal to the width of the top plate 6.
Furthermore, the gob-side entry retaining gangue stopping system in the embodiment of the present application further includes a power supply 15, and the power supply 15 is electrically connected to the processing device 11 and the motor driver 103 respectively to realize electric support for the processing device 11 and the motor driver 103.
Referring to fig. 6, fig. 6 shows a slide bottom plate and a top view at the bottom plate. As shown in fig. 6, the sliding bottom plate 9 is provided with a first sliding chute 12, the bottom plate 7 is provided with a second sliding chute 13, and the notches of the first sliding chute 12 and the second sliding chute 13 are in contact, so that the supporting column 102 in the waste rock blocking device 10 can slide in the second sliding chute 13. In the embodiment of the present application, the bottom of the supporting column 102 and the structure of the second sliding chute 13 can be specifically set according to actual conditions, as long as the supporting column 102 can slide in the second sliding chute 13.
When the waste rock blocking device 10 works, the waste rock blocking device 10 slides to the second chute 13 and is in contact with the arc-shaped waste rock blocking net 3. When the amount of the mine spoil 16 that slips off is large, a large amount of mine spoil 16 may exert a force on the mine spoil retention device 10 causing the mine spoil retention device 10 to move away from the mine spoil 16. Thus, to prevent the gangue blocking device 10 from moving under the force of a large amount of gangue 16, automatic locking devices 14 are provided on both sides of the second chute 13, respectively, to lock the gangue blocking device 10. Since the structures of the bottom of the supporting column 102 and the second chute 13 are specifically arranged according to actual conditions, the specific structure of the automatic locking device 14 is not limited in the embodiment of the application as long as the locking of the waste rock blocking device 10 can be realized.
The working process of the gob-side entry retaining gangue blocking system provided by the embodiment of the application is as follows: when the waste rock 16 slides downwards, when the downward sliding amount of the waste rock 16 does not exceed the gravity pressure range set by the gravity sensor 8, the waste rock blocking device 10 cannot slide relative to the arc-shaped waste rock blocking net 3, namely, the arc-shaped waste rock blocking net 3 can bear the weight of the waste rock 16. If the glide quantity of the gangue 16 exceeds the gravity pressure range set by the gravity sensor 8, the gravity sensor 8 sends a signal to the processing device 11, and the processing device 11 controls the motor driver 103 to work according to the received signal. At this time, the supporting seat 101 drives the supporting column 102 and other parts to slide towards the arc-shaped gangue stopping net 3 and contact with the arc-shaped gangue stopping net 3. When the waste rock blocking device 10 is contacted with the arc-shaped waste rock blocking net 3, the waste rock blocking device 10 is positioned at the second sliding groove 13, and at the moment, the automatic locking device 14 automatically locks the waste rock blocking device 10 to fix the waste rock blocking device 10. Therefore, the waste rock blocking effect of the arc-shaped waste rock blocking net 3 is increased, and the safety of the arc-shaped waste rock blocking net 3 is improved.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It is to be understood that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The present invention is not limited to the precise arrangements described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (7)
1. The utility model provides a gob entry retaining waste rock system which characterized in that includes: the arc-shaped waste rock blocking net (3) is arranged between the goaf surface (1) and the roadway (2), and the upper end and the lower end of the arc-shaped waste rock blocking net (3) are respectively connected with the upper bottom surface (4) and the lower bottom surface (5) of the roadway (2); the arc-shaped gangue blocking net (3) is arranged in a bending way towards the direction of the roadway (2);
a top plate (6) is fixedly arranged on the upper bottom surface (4), a bottom plate (7) is fixedly arranged on the lower bottom surface (5), and the upper end and the lower end of the arc-shaped waste rock blocking net (3) are respectively abutted against the top plate (6) and the bottom plate (7);
a gravity sensor (8) is arranged on one side, away from the goaf surface (1), of the arc-shaped waste rock blocking net (3), and the gravity sensor (8) is arranged in the middle of the arc-shaped waste rock blocking net (3); the gravity sensor (8) is used for detecting the weight of the gangue (16) borne by the arc gangue blocking net (3);
a sliding bottom plate (9), a waste rock blocking device (10) and a processing device (11) are further arranged in the roadway (2), the waste rock blocking device (10) is arranged on the sliding bottom plate (9), the waste rock blocking device (10) slides relative to the arc-shaped waste rock blocking net (3), and the height of the waste rock blocking device (10) is the same as the distance between the top plate (6) and the bottom plate (7);
the processing device (11) is in signal connection with the gravity sensor (8) and the waste rock blocking device (10) respectively;
the waste rock blocking device (10) comprises:
a support base (101);
a support column (102) and a motor driver (103) arranged on the support base (101);
and a horizontal bar (104) and a telescopic support bar (105) arranged on the top of the support column (102);
the supporting column (102) is movably linked with the horizontal rod (104), and two ends of the telescopic supporting rod (105) are respectively connected with the end part of the horizontal rod (104) far away from the supporting column (102) and the supporting column (102);
the motor driver (103) is in signal connection with the processing device (11).
2. The gob-side entry retaining gangue stopping system according to claim 1, wherein a first chute (12) is provided on the sliding floor (9), and a second chute (13) is provided on the floor (7); the notches of the first sliding chute (12) and the second sliding chute (13) are in contact, and the waste rock blocking device (10) slides in the first sliding chute (12) and the second sliding chute (13).
3. The gob-side entry retaining gangue stopping system according to claim 2, characterized in that the second chute (13) is provided with automatic locking devices (14) on both sides thereof, respectively.
4. The gob-side entry stop gangue system according to claim 3, wherein the supporting columns (102) are hydraulically telescopic columns.
5. The gob-side entry retaining mine spoil stopping system of claim 1 wherein the telescoping support bar (105) is a hydraulic telescoping column.
6. A gob-side entry retaining gangue system according to any one of claims 1 to 5, characterized in that the length of the horizontal bar (104) is less than or equal to the width of the roof (6).
7. The gob-side entry retaining gangue system according to any one of claims 1 to 5, further comprising a power supply (15), wherein the power supply (15) is electrically connected with the processing device (11) and the motor driver (103), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920655087.4U CN210178416U (en) | 2019-05-09 | 2019-05-09 | Gob-side entry retaining gangue blocking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920655087.4U CN210178416U (en) | 2019-05-09 | 2019-05-09 | Gob-side entry retaining gangue blocking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210178416U true CN210178416U (en) | 2020-03-24 |
Family
ID=69832715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920655087.4U Expired - Fee Related CN210178416U (en) | 2019-05-09 | 2019-05-09 | Gob-side entry retaining gangue blocking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210178416U (en) |
-
2019
- 2019-05-09 CN CN201920655087.4U patent/CN210178416U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200324 |