CN220791236U - Device for preventing rock burst mine tunnel roof slurry from falling off - Google Patents
Device for preventing rock burst mine tunnel roof slurry from falling off Download PDFInfo
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- CN220791236U CN220791236U CN202322335891.3U CN202322335891U CN220791236U CN 220791236 U CN220791236 U CN 220791236U CN 202322335891 U CN202322335891 U CN 202322335891U CN 220791236 U CN220791236 U CN 220791236U
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- net bag
- bag
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- slurry
- roadway
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- 239000002002 slurry Substances 0.000 title claims abstract description 43
- 239000011435 rock Substances 0.000 title abstract description 15
- 239000002893 slag Substances 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000010985 leather Substances 0.000 claims abstract description 6
- 238000003860 storage Methods 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 6
- 238000005336 cracking Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000003818 cinder Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model relates to a device for preventing slurry skin of a mine tunnel roof from falling off, which comprises: the device comprises a string bag device, a connecting device, a fixing device and a slag removing device; wherein, the string bag device includes: the first auxiliary net bag, the main net bag and the second auxiliary net bag; the two sides of the main net bag are respectively and movably connected with the first auxiliary net bag and the second auxiliary net bag by means of the connecting device, so that folding storage is realized in the transportation process; the fixing device is fixed at the top of the roadway and can be connected with the main net bag in a hanging manner, and is used for hanging the net bag device in the mid-air of the roadway to hold slurry leather falling from the top plate of the roadway; the slag removing device is arranged at the middle part of the main net bag and is used for opening the main net bag when slurry skin sundries on the net bag device need to be cleaned. The device provided by the utility model can eliminate the potential safety hazard that the slurry skin of the top plate of the anchor spraying supporting roadway falls and is crushed when the rock burst shows external disturbance.
Description
Technical Field
The utility model belongs to the technical field of coal mines, and particularly relates to a device for preventing slurry from falling off from a roof of a mine tunnel at rock burst.
Background
The tunnel with longer service life or the area with complex geological conditions is often supported by anchor spraying, and the cement accelerator is random and uneven in proportion due to the diversity of underground field environment in the process of spraying concrete (hereinafter referred to as spraying), the concrete strength is greatly reduced due to improper operation, poor grasp of concrete dryness and humidity in the spraying process, and cement mortar used in the concrete is a brittle material with higher compressive strength, but low tensile strength and shear strength, and is easy to crack in tension and high in dead weight, especially in the case of rock burst mines, the tunnel roof spraying is active in roof covering rock movement and high in stress concentration degree, thereby being extremely easy to cause slurry skin cracking, suspended ceiling and dropping and bringing a certain hidden trouble to mine safety production. Therefore, before the slurry skin of the tunnel roof cracks, hangs from the roof and falls, the slurry skin needs to be treated to prevent injury to pedestrians. According to the field practice, when the slurry skin of the tunnel roof is cracked, suspended and falls, the slurry skin is generally treated by adopting a manual tamping method.
The method of manual tamping is adopted for treatment, but the method has the following disadvantages:
1. the manual tamping is carried out when the slurry skin cracks or even the slurry skin falls, so that the prevention is realized afterwards, but most slurry skins fall without warning when the rock burst appears, and the personnel injury is easily caused.
2. In the manual operation of the tamper, work is transmitted to the start end of the tamper at the tail end of the tamper, so that the work efficiency is low, the labor and time are wasted, the inconvenience is high, and the potential safety hazard of injuring operators by smashing exists.
3. By adopting a manual tamping method, the problem of slurry skin cracking and suspended roof can not be thoroughly solved, and the risk of falling to hurt people still exists after a certain time.
4. In the slurry treatment process of the top plate part cracking and the suspended ceiling, an operator needs to tamper a rod, and when the length can not meet the requirements of prying or limited operation space, the operator can also use a ladder frame for matching, so that potential safety hazards exist in the ascending operation.
Disclosure of Invention
First, the technical problem to be solved
Aiming at the existing technical problems, the utility model provides a device for preventing the slurry skin of the tunnel top plate of the rock burst mine tunnel from falling, which can eliminate the potential safety hazard of falling and injuring personnel when the slurry skin of the tunnel top plate of the anchor spraying support tunnel appears external disturbance in the rock burst.
(II) technical scheme
In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:
a device for preventing rock burst mine tunnel roof slurry from falling, comprising: the device comprises a string bag device, a connecting device, a fixing device and a slag removing device;
wherein, the string bag device includes: the first auxiliary net bag, the main net bag and the second auxiliary net bag;
the two sides of the main net bag are respectively and movably connected with the first auxiliary net bag and the second auxiliary net bag by means of the connecting device, so that folding storage is realized in the transportation process;
the fixing device is fixed at the top of the roadway and can be connected with the main net bag in a hanging manner, and is used for hanging the net bag device in the mid-air of the roadway to hold slurry leather falling from the top plate of the roadway;
the slag removing device is arranged at the middle part of the main net bag and is used for opening the main net bag when slurry skin sundries on the net bag device need to be cleaned.
Preferably, the slag removing device includes: a slag removal skylight and a locking device;
the slag removing skylight is arranged in the middle of the main net bag;
one side of the slag removal skylight adopts a hinge to be connected with the main net bag, and the other side adopts a locking device to be connected with the main net bag, so that when slurry falls too much on the net bag device, the slag removal skylight can be opened at any time through the locking device, and the slag removal skylight is used for cleaning slurry leather on the net bag device.
Preferably, the locking device comprises: pulley, stay cord, spring bolt, lock box, spring bolt handle, traction ring and reset spring;
the lock tongue and the reset spring are both arranged in the lock box;
the lock box is fixed on the main net bag;
the return spring can push the lock tongue into a lock hole of the slag removing skylight, so as to lock the slag removing skylight on the main net bag;
the lock tongue handle and the lock tongue are of an integrally formed structure and are positioned outside the lock box;
the traction ring is arranged on the lock tongue handle;
one end of the pull rope is connected with the traction ring, and the other end of the pull rope bypasses the pulley;
the pulleys are fixedly arranged on the side wall of the roadway.
Preferably, the fixing device comprises: a plurality of groups of hanging components;
each suspending device comprises: the device comprises a lifting anchor rod, a CC-type self-locking type flower basket bolt and a lifting ring;
one end of the hoisting anchor rod is fixedly arranged on the roadway top plate;
the other end of the lifting anchor rod is connected with the lifting ring;
one end of the CC-type self-locking type flower basket bolt is connected with the hanging ring;
the other end of the CC-type self-locking type flower basket bolt is connected with a string bag fixing hanging ring on the main string bag, and the string bag device is hung in the middle air of a roadway.
Preferably, the number of the string bag fixing hanging rings is matched with the number of the CC-type self-locking type basket bolts;
the net bag fixing hanging rings are fixedly arranged on two side frames of the main net bag.
Preferably, at least four net bag fixing hanging rings are arranged on the main net bag;
each net bag fixing hanging ring corresponds to a group of hanging components and is used for stably arranging the net bag device in the mid-air of a roadway.
Preferably, the main net bag is also provided with a connecting shaft assembly;
the connecting shaft assembly includes: the connecting male shaft and the connecting female shaft;
the connecting male shaft and the connecting female shaft are respectively and fixedly arranged at two sides of the main net bag;
the main net bags of adjacent rows can be connected by means of the connecting shaft assembly.
Preferably, the connecting device adopts movable shaft type connection, so that the first auxiliary net bag and the second auxiliary net bag are integrally conveyed to a construction site and then extend to two sides.
(III) beneficial effects
The beneficial effects of the utility model are as follows: the device for preventing the slurry skin of the mine tunnel roof from falling off has the following beneficial effects:
1. the device is arranged as a whole, can be detached and installed at any time, and is convenient to use.
2. The device is through adopting 40mm equilateral angle steel to weld in the metal mesh periphery, welds the fixed rings of string bag on the peripheral angle steel of metal mesh, and the opposite side is connected on the fixed rings of string bag on the opposite side of basket bolt is connected on the stock, ensures the steadiness of pocket thick liquid.
3. The device is connected by connecting device between the metal mesh, can fold, realizes that ground processing is accomplished and is transported to the place of use light, and the installation is nimble, practices thrift a large amount of operating time and labour, improves economic benefits, reduces intensity of labour.
4. The device design 'scarfing cinder skylight', realize cleaing away thick liquid skin, sediment gangue's function when thick liquid skin drops more, solve the long-term bearing's of metal string bag problem, increase the life of metal string bag.
5. The movable shaft is used for connection, and the whole suspended slurry is downward arc-shaped, so that the slurry can be concentrated in a slag removal skylight, and the cleaning is convenient.
Drawings
Fig. 1 is a schematic diagram of a part of a device for preventing slurry from dropping from a roof of a mine tunnel at rock burst;
fig. 2 is a schematic structural view of a device for preventing slurry from dropping from a roof of a mine tunnel at rock burst;
fig. 3 is a schematic diagram of a part of a structure of a locking device of a device for preventing slurry from dropping from a roof of a mine tunnel at rock burst.
[ reference numerals description ]
1: a main net bag; 2: a first secondary net bag; 3: a second auxiliary net bag; 4: a slag removal skylight; 5: equilateral angle steel; 6: the net bag is used for fixing the hanging ring; 7: a hinge; 8: a connecting device; 9: upper doping part; 10: connecting a female shaft; 11: a locking device; 12: connecting a male shaft; 13: lifting the anchor rod; 14: CC type self-locking flower basket bolt; 15: a hanging ring; 16: a pulley; 17: a pull rope; 18: a bolt; 19: a lock box; 20: a latch bolt handle; 21: a traction ring; 22: and a return spring.
Detailed Description
The utility model will be better explained by the following detailed description of the embodiments with reference to the drawings.
As shown in fig. 1-3: the embodiment discloses a device that rock burst mine tunnel roof thick liquid skin dropped includes: net bag device, connecting device 8, fixing device and scarfing cinder device. Wherein, the string bag device includes: the first auxiliary net bag 2, the main net bag 1 and the second auxiliary net bag 3; the two sides of the main net bag 1 are respectively movably connected with the first auxiliary net bag 2 and the second auxiliary net bag 3 by means of the connecting device 8, so as to realize folding storage in the transportation process; the fixing device is fixed at the top of the roadway and can be hung and connected with the main net bag 1, so that the net bag device is hung and arranged in the mid-air of the roadway to hold slurry skin falling from the top plate of the roadway; the slag removing device is arranged at the middle part of the main net bag 1 and is used for opening the main net bag 1 when slurry skin sundries on the net bag device need to be cleaned.
It should be noted that: the middle parts of the main net bag 1, the first auxiliary net bag 2 and the second auxiliary net bag 3 in the embodiment are diamond-shaped metal steel plate nets (the specifications of the diamond-shaped steel plate nets are that the short pitch is 30mm, the long pitch is 60mm, the stem width is 4mm, and the thickness is 4 mm), four sides are respectively formed by welding (40 x 40 mm) equilateral angle steel, and 20cm positions on the left side and the right side of the edge of the main net bag 1 are respectively welded with one equilateral angle steel 5 for doping the auxiliary net bags upwards, and the width of an upper doped part is increased, so that the auxiliary net bag device is firmer and firmer.
The slag removal device in this embodiment includes: a slag removal skylight 4 and a locking device. The slag removing skylight 4 is arranged in the middle of the main net bag 1; one side of the slag removal skylight 4 is connected with the main net bag 1 by adopting a hinge 7, and the other side of the slag removal skylight is connected with the main net bag 1 by adopting a locking device, so that when slurry falls too much on the net bag device, the slag removal skylight can be opened at any time by the locking device, and the slag removal skylight is used for cleaning slurry leather on the net bag device.
The locking device in this embodiment includes: pulley 16, draw cord 17, bolt 18, lock box 19, bolt handle 20, traction ring 21 and return spring 22.
The lock tongue 18 and the return spring 22 are both arranged in the lock box 19; the lock box 19 is fixed on the main net bag 1; the return spring 22 can push the lock tongue 18 into a lock hole of the slag removal skylight 4 so as to lock the slag removal skylight 4 on the main net bag 1. The lock tongue handle 20 and the lock tongue 18 are of an integrally formed structure and are positioned outside the lock box 19; the traction ring 21 is arranged on the lock tongue handle 20; one end of the pull rope 17 is connected with the traction ring 21, and the other end of the pull rope bypasses the pulley 16; the pulley 16 is fixedly arranged on the side wall of the roadway.
The fixing device in this embodiment includes: a plurality of groups of hanging components; each suspending device comprises: a lifting anchor rod 13, a CC-type self-locking type basket bolt 14 and a lifting ring 15; one end of the hoisting anchor rod 13 is fixedly arranged on the roadway roof; the other end of the lifting anchor rod 13 is connected with the lifting ring 15; one end of the CC-type self-locking type stud bolt 14 is connected with the hanging ring 15; the other end of the CC-type self-locking type flower basket bolt 14 is connected with a string bag fixing hanging ring 6 on the main string bag 1, and is used for hanging the string bag device in the mid-air of a roadway.
The number of the string bag fixing hanging rings 6 in the embodiment is matched with the number of the CC-type self-locking type basket bolts 14; the net bag fixing hanging rings 6 are fixedly arranged on two side frames of the main net bag 1.
In detail, at least four net bag fixing hanging rings 6 are arranged on the main net bag 1; each net bag fixing hanging ring 6 corresponds to a group of hanging components and is used for stably arranging the net bag device in the mid-air of a roadway. A connecting shaft assembly is further arranged on the main net bag 1; the connecting shaft assembly includes: a connecting male shaft 12 and a connecting female shaft 10; the connecting male shaft 12 and the connecting female shaft 10 are respectively and fixedly arranged at two sides of the main net bag 1; in practice, adjacent rows of said main pockets 1 can be connected by means of said connecting shaft assembly.
It should be noted that: in this embodiment, the connecting device adopts a movable shaft type connection, so that the first auxiliary net bag 2 and the second auxiliary net bag 3 are integrally transported to a construction site and then extend to two sides.
More specifically, the device for preventing slurry from dropping from the roof of the mine tunnel at rock burst disclosed in the embodiment is described in detail as follows:
referring to fig. 1, the net bag device mainly comprises a main net bag (1), a first auxiliary net bag (2) and a second auxiliary net bag (3), wherein the main net bag (1) is doped on the first auxiliary net bag (2) and the second auxiliary net bag (3), the main net bag and the auxiliary net bag are connected into a whole by a connecting device (8), and after processing, the first auxiliary net bag (2) and the second auxiliary net bag (3) are folded towards the side of the main net bag (1) to enable the net bag device to meet the whole transportation condition.
The slag removing skylight mainly comprises a slag removing skylight (4), hinges (7) and a locking device (11), wherein the slag removing skylight (4) is arranged in the middle of the main net bag (1), and a group of hinges (7) are arranged on the side, close to the first auxiliary net bag (2), of the slag removing skylight (4) and the main net bag (1) to increase the flexibility of skylight opening; a group of locking devices (11) are arranged at the positions of the main net bag (1) and the slag removing skylight (4) close to the second auxiliary net bag (3).
Referring to fig. 2, the fixing device mainly comprises lifting anchor rods (13), CC type self-locking type basket bolts (14) and lifting rings (15), two groups of lifting anchor rods (13) are arranged at the top of a slurry skin cracking roadway in a beating mode, after the lifting anchor rods (13) are solidified, the lifting rings (15) are installed on the lifting anchor rods (13), the CC type self-locking type basket bolts (14) are connected to the lifting rings (15), the first auxiliary net bags (2) and the second auxiliary net bags (3) are turned over towards two sides of the main net bags (1), and the net bags are pushed upwards by adopting a ladder frame to be matched with manual work, so that the CC type self-locking type basket bolts (14) are connected with the net bags to complete installation of a group of net bags.
When the second string bag device is installed, a group of lifting anchor rods (13) are firstly arranged, after the lifting anchor rods (13) are solidified, the string bag device is supported manually, so that a connecting male shaft (12) on the first string bag device is connected with a connecting female shaft (10) on the second string bag device, the first string bag device and the second string bag device form a whole, the second string bag device is supported, the other side of the string bag device is connected with a CC type self-locking flower basket bolt (14) connected under the arranged lifting anchor rods (13) and connected with the string bag fixing hanging rings (6), the second string bag device is installed, and the string bag devices are connected into a whole in sequence.
Referring to fig. 3, the locking device (11) mainly comprises a pulley (16), a pull rope (17), a lock tongue (18), a lock box (19), a lock tongue handle (20), a traction ring (21) and a return spring (22), wherein the locking device (11) is welded on the main net bag (1) to be matched with the slag removal skylight (4), the pulley (16) is welded on the second auxiliary net bag (3), and the pull rope (17) passes through the pulley (16) to be fixed on the traction rings (21) of the two locking devices (11); when the slurry is dropped on the string bag device and needs to be cleaned, the pull rope (17) is used for pulling the lock tongue (18) backwards to enable the slag removing skylight (4) to be automatically opened, the return spring (22) is used for popping up the lock tongue (18) after the pull rope (17) is loosened, the long-handle tamping rod is used for processing the slurry falling outside the slag removing skylight (4), and when the slag removing skylight (4) is pushed upwards to the lock tongue (18) by the tamping rod, the lock tongue (18) can be pushed backwards because the inclined plane is arranged on the lower side of the lock tongue (18) for the slag removing skylight (4), and when the pushing distance of the slag removing skylight (4) exceeds the lock tongue (18), the return spring (22) is used for automatically popping up the lock tongue (18), and the upper side of the lock tongue (18) can drag the slag removing skylight (4) for planar design to finish self-locking capacity.
The technical principles of the present utility model have been described above in connection with specific embodiments, which are provided for the purpose of explaining the principles of the present utility model and are not to be construed as limiting the scope of the present utility model in any way. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (8)
1. A device for preventing slurry skin of a mine tunnel roof from falling off,
characterized by comprising the following steps: the device comprises a string bag device, a connecting device, a fixing device and a slag removing device;
wherein, the string bag device includes: the first auxiliary net bag, the main net bag and the second auxiliary net bag;
the two sides of the main net bag are respectively and movably connected with the first auxiliary net bag and the second auxiliary net bag by means of the connecting device, so that folding storage is realized in the transportation process;
the fixing device is fixed at the top of the roadway and can be connected with the main net bag in a hanging manner, and is used for hanging the net bag device in the mid-air of the roadway to hold slurry leather falling from the top plate of the roadway;
the slag removing device is arranged at the middle part of the main net bag and is used for opening the main net bag when slurry skin sundries on the net bag device need to be cleaned.
2. The apparatus of claim 1, wherein the device comprises a plurality of sensors,
the slag removing device comprises: a slag removal skylight and a locking device;
the slag removing skylight is arranged in the middle of the main net bag;
one side of the slag removal skylight adopts a hinge to be connected with the main net bag, and the other side adopts a locking device to be connected with the main net bag, so that when slurry falls too much on the net bag device, the slag removal skylight can be opened at any time through the locking device, and the slag removal skylight is used for cleaning slurry leather on the net bag device.
3. The apparatus of claim 2, wherein the device comprises a plurality of sensors,
the locking device comprises: pulley, stay cord, spring bolt, lock box, spring bolt handle, traction ring and reset spring;
the lock tongue and the reset spring are both arranged in the lock box;
the lock box is fixed on the main net bag;
the return spring can push the lock tongue into a lock hole of the slag removing skylight, so as to lock the slag removing skylight on the main net bag;
the lock tongue handle and the lock tongue are of an integrally formed structure and are positioned outside the lock box;
the traction ring is arranged on the lock tongue handle;
one end of the pull rope is connected with the traction ring, and the other end of the pull rope bypasses the pulley;
the pulleys are fixedly arranged on the side wall of the roadway.
4. The apparatus of claim 3, wherein the device comprises a plurality of sensors,
the fixing device includes: a plurality of groups of hanging components;
each suspending device comprises: the device comprises a lifting anchor rod, a CC-type self-locking type flower basket bolt and a lifting ring;
one end of the hoisting anchor rod is fixedly arranged on the roadway top plate;
the other end of the lifting anchor rod is connected with the lifting ring;
one end of the CC-type self-locking type flower basket bolt is connected with the hanging ring;
the other end of the CC-type self-locking type flower basket bolt is connected with a string bag fixing hanging ring on the main string bag, and the string bag device is hung in the middle air of a roadway.
5. The apparatus of claim 4, wherein the device comprises a plurality of sensors,
the number of the net bag fixing hanging rings is matched with the number of the CC-type self-locking type basket bolts;
the net bag fixing hanging rings are fixedly arranged on two side frames of the main net bag.
6. The apparatus of claim 5, wherein the device comprises a plurality of sensors,
at least four net bag fixing hanging rings are arranged on the main net bag;
each net bag fixing hanging ring corresponds to a group of hanging components and is used for stably arranging the net bag device in the mid-air of a roadway.
7. The apparatus of claim 6, wherein the device comprises a plurality of sensors,
the main net bag is also provided with a connecting shaft assembly;
the connecting shaft assembly includes: the connecting male shaft and the connecting female shaft;
the connecting male shaft and the connecting female shaft are respectively and fixedly arranged at two sides of the main net bag;
the main net bags of adjacent rows can be connected by means of the connecting shaft assembly.
8. The apparatus of claim 1, wherein the device comprises a plurality of sensors,
the connecting device is connected by adopting a movable shaft type, and is used for enabling the first auxiliary net bag and the second auxiliary net bag to stretch to two sides after being integrally conveyed to a construction site.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322335891.3U CN220791236U (en) | 2023-08-30 | 2023-08-30 | Device for preventing rock burst mine tunnel roof slurry from falling off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322335891.3U CN220791236U (en) | 2023-08-30 | 2023-08-30 | Device for preventing rock burst mine tunnel roof slurry from falling off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220791236U true CN220791236U (en) | 2024-04-16 |
Family
ID=90658735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322335891.3U Active CN220791236U (en) | 2023-08-30 | 2023-08-30 | Device for preventing rock burst mine tunnel roof slurry from falling off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220791236U (en) |
-
2023
- 2023-08-30 CN CN202322335891.3U patent/CN220791236U/en active Active
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