CN112065473A - Device for preventing rock burst of coal mining working face - Google Patents
Device for preventing rock burst of coal mining working face Download PDFInfo
- Publication number
- CN112065473A CN112065473A CN202010767234.4A CN202010767234A CN112065473A CN 112065473 A CN112065473 A CN 112065473A CN 202010767234 A CN202010767234 A CN 202010767234A CN 112065473 A CN112065473 A CN 112065473A
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- Prior art keywords
- rock burst
- arc
- coal mining
- plate
- top surface
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/54—Details of the ends of props
- E21D15/55—Details of the ends of props of prop heads or feet
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/01—Caps for supporting mine roofs characterised by the shape of the cap, e.g. of specified cross-section
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/40—Lighting for industrial, commercial, recreational or military use
- F21W2131/402—Lighting for industrial, commercial, recreational or military use for working places
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a device for preventing rock burst of a coal mining working face, and mainly relates to the technical field of coal mining. The utility model provides a device of prevention coal mining working face rock burst, includes the diaphragm, the rectangle recess is seted up to the diaphragm top surface, be equipped with in the rectangle recess and place the board, it passes through buffer and rectangle groove connection to place the board, place board top surface installation arc roof, several draw-in groove is seted up to arc roof bottom surface. The invention has the beneficial effects that: when rock burst occurs, the tunnel can be supported, collapse of the tunnel is avoided, coal and rock mass can be effectively prevented from being thrown out when the rock burst occurs, casualties are avoided, meanwhile, the pressure sensor is installed on the arc-shaped top plate, when the pressure sensor is subjected to large pressure, the control box controls the first supporting rod to extend upwards, the supporting block is in contact fit with the clamping groove, the arc-shaped top plate is further supported, and the bearing capacity of the arc-shaped top plate is improved.
Description
Technical Field
The invention mainly relates to the technical field of coal mining, in particular to a device for preventing rock burst of a coal mining working face.
Background
Coal mines are areas where humans mine coal resources in coal-rich mining areas, and are generally divided into underground coal mines and opencast coal mines, when the coal layer is far away from the ground surface, the coal layer is generally selected to dig a tunnel to the underground, which is a mineworker coal mine, when the coal bed is very close to the earth surface, the coal bed is generally dug by directly stripping the earth surface soil layer, which is an open pit coal mine, most coal mines in China belong to underground coal mines, the range of the coal mines comprises the ground, underground and large areas of related facilities, the coal mine is a reasonable space excavated by human beings when excavating geological layers rich in coal, generally comprises a roadway, a well cave, an excavation surface and the like, the coal is the most main solid fuel, is one of combustible organic rocks, is a luxurious plant grown in a certain geological age, in a suitable geological environment, the coal is gradually piled up into a thick layer and buried in the water bottom or silt, and the coal is formed through natural coalification of a long geological age.
Rock burst is also called rock burst, and refers to a dynamic phenomenon that rock mass around a roadway or a working face is suddenly and violently damaged due to instantaneous release of elastic deformation energy, and is often accompanied with phenomena of coal and rock mass throwing, loud sound, air waves and the like, the rock burst has great destructiveness, is one of major disasters of a coal mine, is easy to cause casualties when the rock burst occurs, and is used for reducing damage of the rock burst to personnel.
Disclosure of Invention
The device can support a roadway when the rock burst occurs, prevent the roadway from collapsing, effectively prevent coal and rock bodies from being thrown out when the rock burst occurs, avoid casualties, meanwhile, the pressure sensor is installed on the arc-shaped top plate, when the pressure sensor is subjected to large pressure, the control box controls the first supporting rod to extend upwards to enable the supporting block to be in contact fit with the clamping groove, further support the arc-shaped top plate, the bearing capacity of the arc-shaped top plate is increased, meanwhile, the buffer device can play a role in buffering impact force applied to the arc-shaped top plate, the arc-shaped bottom plate can be prevented from being subjected to large impact force instantly when the rock burst occurs, and the bearing capacity of the arc-shaped top plate is improved.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the utility model provides a device of prevention coal mining working face rock burst, includes the diaphragm, the rectangle recess is seted up to the diaphragm top surface, be equipped with in the rectangle recess and place the board, it passes through buffer and rectangle groove connection to place the board, place board top surface installation arc roof, the several draw-in groove is seted up to arc roof bottom surface, place the first bracing piece of board top surface installation several, every the supporting shoe is all installed on first bracing piece top, the supporting shoe can block into in the draw-in groove that corresponds, arc roof top surface installation pressure sensor, place board top surface installation control box, pressure sensor and control box line connection, several second bracing pieces are all installed to diaphragm bottom surface both sides, lie in the diaphragm with several of one side all through connecting plate fixed connection between the second bracing piece bottom.
Furthermore, first bracing piece and second bracing piece all with hydraulic telescoping rod, first bracing piece and second bracing piece all with control box line connection.
Further, the buffer device is a plurality of springs.
Furthermore, screws are mounted on the front side and the rear side of the top surface of each connecting plate in a threaded mode, and the bottom ends of the screws are conical.
Furthermore, a handle is arranged on the periphery of the top end of each screw.
Furthermore, the top surface of the placing plate is provided with two inclined fixing rods, the top ends of the fixing rods are fixedly connected with the bottom surface of the arc-shaped top plate, and the bottom ends of the fixing rods are fixedly connected with the top surface of the placing plate.
Further, LED lamps are installed on two sides of the bottom surface of the transverse plate, and each LED lamp is connected with a control box through a circuit.
Compared with the prior art, the invention has the beneficial effects that:
when rock burst occurs, the tunnel can be supported, collapse of the tunnel is avoided, coal and rock mass can be effectively prevented from being thrown out when the rock burst occurs, casualties are avoided, meanwhile, the pressure sensor is installed on the arc-shaped top plate, when the pressure sensor is subjected to large pressure, the control box controls the first supporting rod to extend upwards, the supporting block is in contact fit with the clamping groove, the arc-shaped top plate is further supported, the bearing capacity of the arc-shaped top plate is increased, meanwhile, the buffer device can play a role in buffering impact force on the arc-shaped top plate, the arc-shaped bottom plate can be prevented from being subjected to large impact force instantly when the rock burst occurs, and the bearing capacity of the arc-shaped top plate is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
reference numerals shown in the drawings: 1. a transverse plate; 2. a rectangular groove; 3. placing the plate; 4. a buffer device; 5. an arc-shaped top plate; 6. a card slot; 7. a first support bar; 8. a support block; 9. a control box; 10. a second support bar; 11. a connecting plate; 12. an LED lamp; 13. a screw; 14. a pressure sensor; 15. a handle; 16. and (5) fixing the rod.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and these equivalents also fall within the scope of the present application.
As shown in figure 1, the device for preventing rock burst of the coal mining working face comprises a transverse plate 1, wherein a rectangular groove 2 is formed in the top surface of the transverse plate 1, a placing plate 3 is arranged in the rectangular groove 2, the placing plate 3 is in contact fit with the inner wall of the rectangular groove 2, the placing plate 3 is connected with the rectangular groove 2 through a buffer device 4, an arc-shaped top plate 5 is mounted on the top surface of the placing plate 3, a plurality of clamping grooves 6 are formed in the bottom surface of the arc-shaped top plate 5, a plurality of first supporting rods 7 are mounted on the top surface of the placing plate 3, a supporting block 8 is mounted at the top end of each first supporting rod 7, the supporting blocks 8 can be clamped in the corresponding clamping grooves 6, a pressure sensor 14 is mounted on the top surface of the arc-shaped top plate 5, a control box 9 is mounted on the top surface of the placing plate 3, the pressure sensors 14 are in line connection with, the bottom ends of the second supporting plates 10, which are positioned on the same side of the transverse plate 1, are fixedly connected through a connecting plate 11.
Specifically, first bracing piece 7 and second bracing piece 10 all with hydraulic telescoping rod, first bracing piece 7 and second bracing piece 10 all with 9 line connection of control box. First bracing piece 7 and second bracing piece 10 all with hydraulic telescoping rod, can extend and contract as required, and then adjust this device's supporting effect.
Specifically, the buffer device 4 is a plurality of springs. The spring is compressed under stress, is stressed in contact, can recover the original state under the action of the self elasticity, and has the function of absorbing impact load.
Specifically, screws 13 are mounted on the front side and the rear side of the top surface of each connecting plate 11 in a threaded mode, and the bottom ends of the screws 13 are conical. Through screw 13, can stabilize connecting plate 11 on the tunnel bottom surface, the installation with dismantle the convenience.
Specifically, a handle 15 is mounted on the periphery of the top end of each screw 13. Through handle 15, operating personnel is convenient for rotate screw 13, has saved operating personnel physical power, has avoided operating personnel hand direct and screw 13 contact simultaneously, has avoided screw 13 to cause the fish tail to operating personnel, has improved operating personnel hand comfort level.
Specifically, the top surface of the placing plate 3 is provided with two inclined fixing rods 16, the top end of each fixing rod 16 is fixedly connected with the bottom surface of the arc-shaped top plate 5, and the bottom end of each fixing rod 16 is fixedly connected with the top surface of the placing plate 3. The fixing rod 16 has a supporting function on the arc-shaped top plate 5, so that the stress of the arc-shaped top plate 5 can be improved, and the stability of the structure is improved.
Specifically, LED lamps 12 are installed on two sides of the bottom surface of the transverse plate, and each LED lamp 12 is connected with the control box 9 through a circuit. The LED lamp 12 can provide illumination, and through the arrangement of the LED lamp 12, an operator can walk and operate in a roadway conveniently.
Example (b):
when the device is used, firstly, a connecting plate is fastened on the ground of a roadway through a screw 13, then a control box 9 is used for controlling a second supporting rod 10 to extend upwards, the second supporting rod 10 extends to drive a transverse plate 1 to move upwards, the transverse plate 1 moves upwards to drive an arc-shaped top plate 5 to move upwards, the arc-shaped top plate 5 is contacted with the top surface of the roadway, the installation of the device is completed, when rock burst occurs, a pressure sensor 14 transmits pressure data to the control box 9, the control box 9 controls a first supporting rod 7 to extend upwards, the first supporting rod 7 extends to drive a supporting block 8 to move upwards, the supporting block 8 moves upwards and is clamped into a clamping groove 6 to support the arc-shaped top plate 5, and meanwhile, the buffer device is stressed, compressed and relieves impact load; when rock burst occurs, the tunnel can be supported, collapse of the tunnel is avoided, coal and rock mass can be effectively prevented from being thrown out when the rock burst occurs, casualties are avoided, meanwhile, the pressure sensor is installed on the arc-shaped top plate, when the pressure sensor is subjected to large pressure, the control box controls the first supporting rod to extend upwards, the supporting block is in contact fit with the clamping groove, the arc-shaped top plate is further supported, the bearing capacity of the arc-shaped top plate is increased, meanwhile, the buffer device can play a role in buffering impact force on the arc-shaped top plate, the arc-shaped bottom plate can be prevented from being subjected to large impact force instantly when the rock burst occurs, and the bearing capacity of the arc-shaped top plate is improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. The utility model provides a device of prevention coal mining working face rock burst, includes diaphragm (1), its characterized in that: the device is characterized in that a rectangular groove (2) is formed in the top surface of the transverse plate (1), a placing plate (3) is arranged in the rectangular groove (2), the placing plate (3) is connected with the rectangular groove (2) through a buffer device (4), an arc-shaped top plate (5) is installed on the top surface of the placing plate (3), a plurality of clamping grooves (6) are formed in the bottom surface of the arc-shaped top plate (5), a plurality of first supporting rods (7) are installed on the top surface of the placing plate (3), supporting blocks (8) are installed at the top ends of the first supporting rods (7), the supporting blocks (8) can be clamped into the corresponding clamping grooves (6), pressure sensors (14) are installed on the top surface of the arc-shaped top plate (5), a control box (9) is installed on the top surface of the placing plate (3), the pressure sensors (14) are in line connection with the control box (9), and a plurality of, the bottom ends of the second supporting plates (10) which are positioned on the same side of the transverse plate (1) are fixedly connected through a connecting plate (11).
2. The device of claim 1, wherein the device is configured to prevent rock burst in a coal mining face: first bracing piece (7) and second bracing piece (10) all with hydraulic telescoping rod, first bracing piece (7) and second bracing piece (10) all with control box (9) line connection.
3. The device of claim 1, wherein the device is configured to prevent rock burst in a coal mining face: the buffer device (4) is a plurality of springs.
4. The device of claim 1, wherein the device is configured to prevent rock burst in a coal mining face: every equal screw thread mounting screw (13) in both sides around connecting plate (11) top surface, every screw (13) bottom all is the toper.
5. The device of claim 4, wherein the device is used for preventing rock burst of the coal mining face, and the device comprises: and a handle (15) is arranged around the top end of each screw (13).
6. The device of claim 1, wherein the device is configured to prevent rock burst in a coal mining face: the top surface of the placing plate (3) is provided with two inclined fixing rods (16), the top end of each fixing rod (16) is fixedly connected with the bottom surface of the arc-shaped top plate (5), and the bottom end of each fixing rod (16) is fixedly connected with the top surface of the placing plate (3).
7. The device of claim 1, wherein the device is configured to prevent rock burst in a coal mining face: LED lamps (12) are installed on two sides of the bottom surface of the transverse plate, and each LED lamp (12) is connected with a control box (9) through a circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010767234.4A CN112065473A (en) | 2020-08-03 | 2020-08-03 | Device for preventing rock burst of coal mining working face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010767234.4A CN112065473A (en) | 2020-08-03 | 2020-08-03 | Device for preventing rock burst of coal mining working face |
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| Publication Number | Publication Date |
|---|---|
| CN112065473A true CN112065473A (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010767234.4A Pending CN112065473A (en) | 2020-08-03 | 2020-08-03 | Device for preventing rock burst of coal mining working face |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756853A (en) * | 2021-07-31 | 2021-12-07 | 山东省煤田地质规划勘察研究院 | Deep well soft rock stratum rock burst protector |
| CN113803067A (en) * | 2021-08-13 | 2021-12-17 | 山东省煤田地质规划勘察研究院 | Local rock burst prevention and control device for coal mine |
| CN113756853B (en) * | 2021-07-31 | 2024-05-10 | 山东省煤田地质规划勘察研究院 | Deep well soft rock stratum rock burst protection device |
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| CN210829314U (en) * | 2019-09-23 | 2020-06-23 | 山东赛诺机电设备科技有限公司 | Gate-type fore support with buffering energy-absorbing device |
| CN111335929A (en) * | 2020-03-13 | 2020-06-26 | 刘延生 | Rock burst protection device for coal mine |
| CN210977536U (en) * | 2019-10-31 | 2020-07-10 | 安徽建筑大学 | Coal mine production underground safety protection device |
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2020
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Patent Citations (10)
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| CN105525931A (en) * | 2014-09-28 | 2016-04-27 | 辽宁工程技术大学 | Burst-preventing support device for rock burst round roadway |
| CN106285735A (en) * | 2016-09-14 | 2017-01-04 | 安徽理工大学 | A kind of mining bracket that can monitor bump in real time |
| CN106321123A (en) * | 2016-09-14 | 2017-01-11 | 安徽理工大学 | Mining support with supporting stiffness capable of being automatically adjusted |
| CN106246206A (en) * | 2016-10-12 | 2016-12-21 | 辽宁工程技术大学 | Mine stalk semicircular arch tunnel erosion control support |
| CN108708759A (en) * | 2018-05-18 | 2018-10-26 | 辽宁大学 | A kind of repeatable energy-absorbing tunnel erosion control hydraulic support and its anti-punching method |
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| CN210422663U (en) * | 2019-04-16 | 2020-04-28 | 刘丽峰 | Colliery is safety protection support in pit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113756853A (en) * | 2021-07-31 | 2021-12-07 | 山东省煤田地质规划勘察研究院 | Deep well soft rock stratum rock burst protector |
| CN113756853B (en) * | 2021-07-31 | 2024-05-10 | 山东省煤田地质规划勘察研究院 | Deep well soft rock stratum rock burst protection device |
| CN113803067A (en) * | 2021-08-13 | 2021-12-17 | 山东省煤田地质规划勘察研究院 | Local rock burst prevention and control device for coal mine |
| CN113803067B (en) * | 2021-08-13 | 2024-01-23 | 山东省煤田地质规划勘察研究院 | Colliery local rock burst prevention and cure device |
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Application publication date: 20201211 |