CN111636924B - Coal mine rock burst early warning emergency system and use method thereof - Google Patents
Coal mine rock burst early warning emergency system and use method thereof Download PDFInfo
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- CN111636924B CN111636924B CN202010531322.4A CN202010531322A CN111636924B CN 111636924 B CN111636924 B CN 111636924B CN 202010531322 A CN202010531322 A CN 202010531322A CN 111636924 B CN111636924 B CN 111636924B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
Abstract
The invention discloses a coal mine rock burst early warning emergency system and a using method thereof, and the coal mine rock burst early warning emergency system comprises a main body box, a winding assembly and an electromagnetic radiation monitor, wherein an upper cover is in threaded connection with the upper part of the main body box, a base is fixed on the outer wall of the front side of the upper cover, a display meter is connected to the top of the upper cover, the winding assembly is installed on the left side of the main body box, a connecting wire is connected to the upper part of the winding assembly, a protection assembly is installed at the left end of the connecting wire, a drilling stress meter is connected to the left end of the protection assembly, brackets are uniformly arranged on the outer wall of the lower part of the main body box, the electromagnetic radiation monitor is arranged in the brackets, a distance measuring rope is installed between the adjacent electromagnetic radiation monitors, a base assembly is installed at the bottom of the main body box, and a storage battery pack is arranged in the main body box. The whole equipment system is arranged to effectively combine the electromagnetic radiation method and the coal body stress method, so that the early warning prediction is more accurate, and the equipment is compact in layout and high in portability.
Description
Technical Field
The invention relates to the technical field of mining engineering, in particular to a coal mine rock burst early warning emergency system and a using method thereof.
Background
In recent years, with the gradual deepening of coal mining depth, the influence of rock burst is increasingly intensified, great harm is brought to coal mine safety production, the occurrence of the rock burst is relatively complex, and the practical problem is difficult to solve by using a simple mathematical analysis and a rock mechanics theory. Because the coal rock stratum is influenced by geological structures such as joints, fractures, faults and the like, the coal rock stratum has the characteristics of discontinuity and anisotropy, and water and gas existing in the coal rock stratum and the stress and the structural stress of the original rock jointly act on the coal rock stratum, so that the physical properties and the mechanical properties of the coal rock stratum are more complex and are continuously changed in time and space, the change characteristics of the coal rock stratum under different conditions are formed in different places along with the deepening of mining, and the diversity and the complexity of the change bring development to the monitoring and early warning technology of rock burst in coal mining. According to the investigation result of the rock burst mine in China at present, the technology for monitoring and early warning the rock burst mainly comprises methods such as a drilling cutting method, an electromagnetic radiation method, a coal body stress method, a ground sound monitoring method, a microseismic monitoring method and the like.
However, the coal mine rock burst early warning device in the current market is poor in portability and inconvenient to move, and is difficult to combine an electromagnetic radiation method and a coal body stress method together, and a drilling stress meter used in the existing early warning device is long in connecting line and troublesome in combing, the connecting line can even be knotted, so that the working efficiency is affected, the existing drilling stress meter cannot be fully attached to the wall of a drilling hole, the mine pressure change cannot be accurately and timely reflected, and the effect of continuously monitoring the mine pressure by fixedly mounting the drilling hole cannot be achieved.
Disclosure of Invention
The invention aims to provide a coal mine rock burst early warning emergency system and a using method thereof, and solves the problems that the existing coal mine rock burst early warning device in the current market is poor in portability and inconvenient to move, an electromagnetic radiation method and a coal body stress method are difficult to combine, and a connecting line of a drilling stress meter used in the existing early warning device is long and troublesome to comb when in use, and even knotted to influence the working efficiency, the existing drilling stress meter cannot be fully attached to the wall of a drilling hole, the mine pressure change is difficult to reflect accurately and timely, and the effect of fixedly mounting the drilling stress meter in the drilling hole to continuously monitor the mine pressure cannot be achieved.
In order to achieve the purpose, the invention provides the following technical scheme: a coal mine rock burst early warning emergency system comprises a main body box, a winding assembly and an electromagnetic radiation monitor, wherein an upper cover is in threaded connection with the upper portion of the main body box, a base is fixed on the outer wall of the front face of the upper cover, a display meter is connected to the top of the upper cover, the winding assembly is installed on the left side of the main body box, a connecting wire is connected to the upper portion of the winding assembly, a protection assembly is installed at the left end of the connecting wire, a drilling stress gauge is connected to the left end of the protection assembly, a bracket is uniformly arranged on the outer wall of the lower portion of the main body box, the electromagnetic radiation monitor is arranged inside the bracket, a distance measuring rope is installed between adjacent electromagnetic radiation monitors, a base assembly is installed at the bottom of the main body box, a storage battery pack is arranged inside the main body box, the winding assembly comprises a winding disc, a rotating rod, a limiting plate and a handle, and the rotating rod is installed in the middle position inside the winding disc, the left and right sides of bull stick all is connected with the limiting plate, the left side of rolling dish is connected with the handle, the protection subassembly includes a protection section of thick bamboo, gasbag pad, miniature air pump and trachea, and the gasbag pad has been cup jointed in the outside of a protection section of thick bamboo, the inside of a protection section of thick bamboo is provided with miniature air pump, and the junction of miniature air pump and gasbag pad installs the trachea, the base subassembly includes chassis, pivot, branch and steel ball dish, and the outward flange on chassis installs the pivot, the inboard of pivot is connected with branch, and the inboard of branch is provided with the steel ball dish.
Preferably, the connection mode between handle and the bull stick is fixed connection, and constitutes revolution mechanic between bull stick and the rolling dish to the structure of limiting plate is disc structure.
Preferably, the miniature air pump passes through to constitute the intercommunication structure between trachea and the gasbag pad, and the structure of gasbag pad is elasticity hollow structure to the connecting wire runs through in the inside of a protection section of thick bamboo.
Preferably, the inner wall of the bracket is provided with a sliding groove, a sliding block is arranged inside the sliding groove, the sliding block is fixedly connected with the electromagnetic radiation monitor, and the electromagnetic radiation monitor forms a sliding structure with the bracket through the sliding block and the sliding groove.
Preferably, the number of the supporting rods and the number of the rotating shafts are 3, the supporting rods and the rotating shafts are distributed in a radiation symmetry mode about the central point of the chassis, and the supporting rods form a rotating structure with the chassis through the rotating shafts.
Preferably, the use method of the coal mine rock burst early warning emergency system comprises the following steps:
s1, unfolding the supporting rods in the base assembly by rotating to form a triangular bracket, and stably supporting the whole device on the ground;
s2, reversely rotating the handle in the winding assembly to enable the connecting wires to be scattered on the rotating rod circle by circle and to disperse the connecting wires with proper lengths;
s3, plugging the borehole stress meter into the borehole of the coal body, and starting the micro air pump in the protection assembly to inflate the air bag cushion to be tightly attached to the inner wall of the borehole;
s4, sliding the electromagnetic radiation monitors out of the bracket, and placing the electromagnetic radiation monitors in the coal body area to be measured at equal intervals according to the maximum length of the distance measuring rope;
and S5, finally, switching on the power supply, detecting the stress value inside the drill hole by the drill hole stress meter, and detecting the electromagnetic radiation quantity of the coal body by the electromagnetic radiation monitor, thereby realizing data monitoring and early warning.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the rotating rod in the winding assembly can rotate relative to the winding disc under the driving of the handle, so that the connecting wire can be stored in a coiled manner, the problems of longer connecting wire and more trouble in carding are effectively avoided, the problem that the connecting wire is knotted to influence the working efficiency is effectively prevented, and the winding device is more convenient to use;
2. the airbag cushion arranged in the protection assembly can change the volume under the action of the micro air pump so as to be suitable for the sizes of the drill holes with different sizes, so that the whole body of the drilling stress meter and the protection assembly can be tightly attached to the inner wall of the drill hole, the change of the mine pressure can be reflected more accurately and timely, and the effect of fixedly installing the airbag cushion in the drill hole to continuously monitor the mine pressure can be achieved;
3. the whole early warning system is provided with a plurality of electromagnetic radiation monitors which can be arranged at equal intervals, so that the electromagnetic radiation data of the coal body can be conveniently detected, and the early warning accuracy of the whole system is effectively improved by collecting, comparing and analyzing the electromagnetic radiation data and the stress data;
4. the supporting rod in the base assembly can be rotatably folded, when the supporting rod is folded, the steel ball disc touches the ground, the whole device is convenient to move, the portability is stronger, and when the supporting rod is unfolded, the base assembly can be stably supported, so that the whole device is convenient to place and position;
5. the whole equipment system is arranged to effectively combine the electromagnetic radiation method and the coal body stress method, so that the early warning prediction is more accurate, the equipment is compact in layout, small in size, strong in portability and convenient to move, a large-capacity power supply is arranged in the equipment, the equipment is not limited by a fixed power supply, and the equipment is more suitable for being used in severe places such as mining areas.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic front cross-sectional view of a protective assembly according to the present invention;
FIG. 3 is a schematic top view of a cross-sectional structure of the winding assembly of the present invention;
FIG. 4 is a schematic top sectional view of the main body case of the present invention;
FIG. 5 is a bottom view of the base assembly of the present invention.
In the figure: 1. a main body case; 2. an upper cover; 3. a base; 4. displaying the table; 5. a winding component; 501. a winding disc; 502. a rotating rod; 503. a limiting plate; 504. a handle; 6. a connecting wire; 7. a protection component; 701. a protective cylinder; 702. an airbag cushion; 703. a micro air pump; 704. an air tube; 8. a borehole stress meter; 9. a bracket; 10. an electromagnetic radiation monitor; 11. a distance measuring rope; 12. a base assembly; 1201. a chassis; 1202. a rotating shaft; 1203. a strut; 1204. a steel bead plate; 13. a battery pack; 14. a chute; 15. a slide block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, a coal mine rock burst early warning emergency system comprises a main body box 1, an upper cover 2, a base 3, a display meter 4, a winding assembly 5, a winding disc 501, a rotating rod 502, a limiting plate 503, a handle 504, a connecting wire 6, a protection assembly 7, a protection cylinder 701, an airbag cushion 702, a micro air pump 703, an air pipe 704, a borehole stressometer 8, a bracket 9, an electromagnetic radiation monitor 10, a distance measuring rope 11, a base assembly 12, a chassis 1201, a rotating shaft 1202, a supporting rod 1203, a steel ball disc 1204, a storage battery 13, a chute 14 and a slider 15, wherein the upper cover 2 is in threaded connection with the upper part of the main body box 1, the base 3 is fixed on the outer wall of the front surface of the upper cover 2, the display meter 4 is connected with the top of the upper cover 2, the winding assembly 5 is installed on the left side of the main body box 1, the connecting wire 6 is connected with the connecting wire 6, the protection assembly 7 is installed at the left end of the connecting wire 6, the left end of the protection component 7 is connected with a borehole stressometer 8, the outer wall of the lower part of the main body box 1 is uniformly provided with a bracket 9, the electromagnetic radiation monitors 10 are arranged in the bracket 9, a distance measuring rope 11 is arranged between the adjacent electromagnetic radiation monitors 10, the bottom of the main body box 1 is provided with a base component 12, the main body box 1 is internally provided with a storage battery pack 13, the inner wall of the bracket 9 is provided with a chute 14, the chute 14 is internally provided with a slide block 15, the slide block 15 is fixedly connected with the electromagnetic radiation monitors 10, the electromagnetic radiation monitors 10 form a sliding structure through the slide block 15 and the chute 14 with the bracket 9, the whole early warning system is also provided with a plurality of electromagnetic radiation monitors 10, the electromagnetic radiation monitors 10 can be arranged at equal intervals, the electromagnetic radiation data of the coal body can be conveniently detected, and the electromagnetic radiation data and the stress data can be collected, contrasted and analyzed, the early warning accuracy of the whole system is effectively improved;
the winding assembly 5 comprises a winding disc 501, a rotating rod 502, a limiting plate 503 and a handle 504, the rotating rod 502 is mounted in the middle of the interior of the winding disc 501, the limiting plates 503 are connected to the left side and the right side of the rotating rod 502, the handle 504 is connected to the left side of the winding disc 501, the handle 504 is fixedly connected with the rotating rod 502, a rotating structure is formed between the rotating rod 502 and the winding disc 501, the limiting plate 503 is of a disc-shaped structure, the rotating rod 502 arranged in the winding assembly 5 can rotate relative to the winding disc 501 under the driving of the handle 504, so that the connecting wire 6 can be stored in a winding manner, the problems that the connecting wire 6 is long and troublesome during carding are effectively avoided, meanwhile, the problem that the connecting wire 6 is knotted and the working efficiency is affected is effectively prevented, and the use is more convenient;
the protection assembly 7 comprises a protection cylinder 701, an airbag cushion 702, a micro air pump 703 and an air pipe 704, the outer side of the protection tube 701 is sleeved with an airbag cushion 702, the interior of the protection tube 701 is provided with a micro air pump 703, and the connection part of the micro air pump 703 and the air bag cushion 702 is provided with an air pipe 704, the micro air pump 703 forms a communicating structure with the air bag cushion 702 through the air pipe 704, and the structure of the air bag cushion 702 is an elastic hollow structure, and the connecting line 6 runs through the inside of the protective cylinder 701, the airbag cushion 702 in the protective assembly 7 can change the volume under the action of the micro air pump 703, the mine pressure monitor is convenient to adapt to the sizes of drill holes with different sizes, so that the whole body of the drilling stress meter 8 and the protection assembly 7 can be tightly attached to the inner wall of the drill hole, the change of the mine pressure can be reflected more accurately and timely, and the effect of continuously monitoring the mine pressure by fixedly mounting the mine pressure monitor in the drill hole can be achieved;
the base assembly 12 comprises a chassis 1201, a rotating shaft 1202, a supporting rod 1203 and a steel ball disc 1204, the rotating shaft 1202 is installed on the outer edge of the chassis 1201, a supporting rod 1203 is connected to the inner side of the rotating shaft 1202, the steel ball disc 1204 is arranged on the inner side of the supporting rod 1203, the number of the supporting rod 1203 and the number of the rotating shaft 1202 are 3, the supporting rod 1203 and the rotating shaft 1202 are symmetrically distributed in a radiation mode relative to the central point of the chassis 1201, the supporting rod 1203 forms a rotating structure with the chassis 1201 through the rotating shaft 1202, the supporting rod 1203 arranged in the base assembly 12 can be rotated and folded, when the supporting rod 1203 is folded, the steel ball disc 1204 touches the ground, the whole device is convenient to move, the portability is stronger, when the supporting rod 1203 is unfolded, the base assembly 12 can be stably supported, and the whole device is convenient to place and position;
the use method of the coal mine rock burst early warning emergency system comprises the following steps:
s1, unfolding the supporting rod 1203 in the base component 12 by rotating to form a triangular bracket, and stably supporting the whole device on the ground;
s2, reversely rotating the handle 504 in the winding component 5 to enable the connecting wires 6 to be scattered on the rotating rod 502 circle by circle, and scattering the connecting wires 6 with proper length;
s3, plugging the borehole stressometer 8 into the borehole of the coal body, and starting the micro air pump 703 in the protection assembly 7 to inflate and swell the air bag cushion 702 to cling to the inner wall of the borehole;
s4, sliding and taking out the electromagnetic radiation monitors 10 from the bracket 9, and placing the electromagnetic radiation monitors 10 in the coal body area to be measured at equal intervals according to the maximum length of the distance measuring rope 11;
and S5, finally, the equipment is powered on, the borehole stress meter 8 detects the stress value inside the borehole, and the electromagnetic radiation monitor 10 detects the electromagnetic radiation quantity of the coal body, so that data monitoring and early warning are realized.
The whole equipment system effectively combines an electromagnetic radiation method and a coal body stress method together, so that the early warning prediction is more accurate, the equipment is compact in layout, small in size, strong in portability and convenient to move, a large-capacity power supply is arranged in the equipment, the equipment is not limited by a fixed power supply, and the equipment is more suitable for being used in severe mine areas and the like.
The working principle is as follows: for the coal mine rock burst early warning emergency system, firstly, the main body box 1 is pushed, as the steel ball disc 1204 in the base component 12 contacts the ground at the moment, the steel ball disc 1204 rolls to drive the main body box 1 to move, then the supporting rod 1203 is rotated, the supporting rod 1203 rotates around the rotating shaft 1202 so as to be unfolded relative to the base plate 1201 and supported on the ground, then the drilling stress meter 8 is taken out from the base 3, then the handle 504 in the winding component 5 is reversely rotated, the handle 504 drives the rotating rod 502 to rotate, so that the connecting wire 6 clamped in the limiting plate 503 is scattered from the rotating rod 502 and extends out of the interior of the winding disc 501, and after the connecting wire is scattered to a proper length, the drilling stress meter 8 is inserted into the interior of a drill hole;
at this time, the micro air pump 703 in the protection module 7 is activated, the micro air pump 703 inflates the inside of the airbag cushion 702 through the air tube 704, the airbag cushion 702 inflates, so that it is in close contact with the inner wall of the borehole, and the protective sleeve 701 is used to protect the connection between the borehole stressor 8 and the connection wire 6, then the electromagnetic radiation monitor 10 is pulled upwards in sequence, the electromagnetic radiation monitor 10 drives the sliding block 15 to slide upwards along the sliding groove 14, thereby taking out the electromagnetic radiation monitors 10 from the bracket 9 and placing them in the coal body measuring area in sequence, leading the distance measuring rope 11 to be straight and realize equidistant placement, then, the electromagnetic radiation monitor 10 is started to measure to obtain point electromagnetic radiation data, the borehole stressometer 8 is started to measure, the stress data is displayed on the display table 4, finally, the upper cover 2 is rotated and opened, the storage battery pack 13 can be exposed, so that the maintenance is convenient, and the use process of the whole coal mine rock burst early warning emergency system is completed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a colliery rock burst early warning emergency system, includes main part case (1), rolling subassembly (5) and electromagnetic radiation monitor (10), its characterized in that: the upper part of the main body box (1) is in threaded connection with an upper cover (2), a base (3) is fixed on the outer wall of the front side of the upper cover (2), the top of the upper cover (2) is connected with a display meter (4), the winding component (5) is installed on the left side of the main body box (1), a connecting wire (6) is connected above the winding component (5), a protection component (7) is installed at the left end of the connecting wire (6), a drilling stress meter (8) is connected at the left end of the protection component (7), a bracket (9) is uniformly arranged on the outer wall of the lower part of the main body box (1), the electromagnetic radiation monitors (10) are arranged inside the bracket (9), a distance measuring rope (11) is installed between adjacent electromagnetic radiation monitors (10), a base component (12) is installed at the bottom of the main body box (1), and a storage battery pack (13) is arranged inside the main body box (1), the winding assembly (5) comprises a winding disc (501), a rotating rod (502), limiting plates (503) and a handle (504), the rotating rod (502) is installed at the middle position inside the winding disc (501), the limiting plates (503) are connected to the left side and the right side of the rotating rod (502), the handle (504) is connected to the left side of the winding disc (501), the protection assembly (7) comprises a protection cylinder (701), an airbag cushion (702), a micro air pump (703) and an air pipe (704), the airbag cushion (702) is sleeved on the outer side of the protection cylinder (701), the micro air pump (703) is arranged inside the protection cylinder (701), the air pipe (704) is installed at the joint of the micro air pump (703) and the airbag cushion (702), the base assembly (12) comprises a base plate (1201), a rotating shaft (1202), a support rod (1203) and a steel ball plate (1204), and the rotating shaft (1202) is installed at the outer edge of the base plate (1204), the inner side of the rotating shaft (1202) is connected with a support rod (1203), and a steel ball disc (1204) is arranged on the inner side of the support rod (1203).
2. The coal mine rock burst early warning emergency system according to claim 1, characterized in that: the handle (504) is fixedly connected with the rotating rod (502), a rotating structure is formed between the rotating rod (502) and the winding disc (501), and the limiting plate (503) is of a disc-shaped structure.
3. The coal mine rock burst early warning emergency system according to claim 1, characterized in that: the micro air pump (703) forms a communicating structure with the air bag cushion (702) through the air pipe (704), the air bag cushion (702) is of an elastic hollow structure, and the connecting line (6) penetrates through the inside of the protection cylinder (701).
4. The coal mine rock burst early warning emergency system according to claim 1, characterized in that: the inner wall of the bracket (9) is provided with a sliding groove (14), a sliding block (15) is arranged inside the sliding groove (14), the sliding block (15) is fixedly connected with the electromagnetic radiation monitor (10), and the electromagnetic radiation monitor (10) forms a sliding structure with the bracket (9) through the sliding block (15) and the sliding groove (14).
5. The coal mine rock burst early warning emergency system according to claim 1, characterized in that: the number of the supporting rods (1203) and the number of the rotating shafts (1202) are set to be 3, the supporting rods (1203) and the rotating shafts (1202) are distributed in a radiation symmetry mode about the center point of the chassis (1201), and the supporting rods (1203) form a rotating structure through the rotating shafts (1202) and the chassis (1201).
6. The coal mine rock burst early warning emergency system according to claim 1, characterized in that: the use method of the coal mine rock burst early warning emergency system comprises the following steps:
s1, firstly, a triangular support is formed by rotating and unfolding a support rod (1203) in the base component (12), and the whole device is stably supported on the ground;
s2, reversely rotating the handle (504) in the winding assembly (5) to enable the connecting wires (6) to be scattered on the rotating rod (502) one by one to scatter the connecting wires (6) with proper length;
s3, plugging the borehole stressometer (8) into the borehole of the coal body, and starting the micro air pump (703) in the protection assembly (7) to inflate and swell the air bag cushion (702) and cling to the inner wall of the borehole;
s4, sliding and taking out the electromagnetic radiation monitors (10) from the bracket (9), and placing the electromagnetic radiation monitors (10) in a coal body area to be measured at equal intervals according to the maximum length of the distance measuring rope (11);
s5, finally, the equipment is powered on, the borehole stressometer (8) detects the stress value in the borehole, and the electromagnetic radiation monitor (10) detects the electromagnetic radiation amount of the coal body, so that data monitoring and early warning are realized.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010531322.4A CN111636924B (en) | 2020-06-11 | 2020-06-11 | Coal mine rock burst early warning emergency system and use method thereof |
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| CN202010531322.4A CN111636924B (en) | 2020-06-11 | 2020-06-11 | Coal mine rock burst early warning emergency system and use method thereof |
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| CN114183074B (en) * | 2021-12-25 | 2023-05-05 | 辽宁石油化工大学 | Automatic well drilling inclination preventing device and inclination preventing method thereof |
| CN116220816B (en) * | 2023-04-17 | 2023-08-15 | 兖煤菏泽能化有限公司赵楼煤矿 | Colliery rock burst monitoring early warning device |
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