CN114215599B - Outburst prevention, dust fall and extraction integrated device for underground tunneling working face - Google Patents
Outburst prevention, dust fall and extraction integrated device for underground tunneling working face Download PDFInfo
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- CN114215599B CN114215599B CN202210159979.1A CN202210159979A CN114215599B CN 114215599 B CN114215599 B CN 114215599B CN 202210159979 A CN202210159979 A CN 202210159979A CN 114215599 B CN114215599 B CN 114215599B
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- 230000005641 tunneling Effects 0.000 title claims abstract description 66
- 239000000428 dust Substances 0.000 title claims abstract description 33
- 238000000605 extraction Methods 0.000 title claims abstract description 30
- 230000002265 prevention Effects 0.000 title claims abstract description 10
- 238000005192 partition Methods 0.000 claims abstract description 108
- 239000003245 coal Substances 0.000 claims abstract description 75
- 238000004880 explosion Methods 0.000 claims abstract description 48
- 239000002817 coal dust Substances 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 21
- 230000008569 process Effects 0.000 claims abstract description 17
- 238000000889 atomisation Methods 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 230000035939 shock Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims 5
- 238000009412 basement excavation Methods 0.000 claims 2
- 238000005507 spraying Methods 0.000 claims 1
- 238000005065 mining Methods 0.000 abstract description 4
- 239000000284 extract Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 53
- 238000011161 development Methods 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000000241 respiratory effect Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 208000028571 Occupational disease Diseases 0.000 description 1
- 201000010001 Silicosis Diseases 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 206010035653 pneumoconiosis Diseases 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21F17/103—Dams, e.g. for ventilation
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
- E21C27/20—Mineral freed by means not involving slitting
- E21C27/22—Mineral freed by means not involving slitting by rotary drills with breaking-down means, e.g. wedge-shaped drills, i.e. the rotary axis of the tool carrier being substantially perpendicular to the working face, e.g. MARIETTA-type
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
- G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
- G01S17/06—Systems determining position data of a target
- G01S17/08—Systems determining position data of a target for measuring distance only
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Abstract
The invention discloses an outburst prevention, dust fall and extraction integrated device for an underground tunneling working face, which comprises an explosion-proof partition plate assembly, a support assembly, an air bag assembly, an atomization dust removal and extraction assembly and a tunneling machine, wherein the explosion-proof partition plate assembly is arranged in a roadway; the explosion-proof clapboard component is provided with a working hole with adjustable size and position. The anti-explosion partition plate assembly is fixedly connected with the roadway and the safety airbag assembly is fixedly connected with the roadway through the supporting assembly, so that the stability of the anti-explosion partition plate assembly and the safety airbag assembly is improved, the atomization dust removal and extraction assembly atomizes and reduces dust of coal dust generated in the tunneling process and extracts gas released in the tunneling process, the coal mining environment is greatly improved, and the working environment and the life safety of personnel in the tunneling process are guaranteed.
Description
Technical Field
The invention relates to the technical field of coal mining, in particular to an underground tunneling working face outburst prevention, dust fall and extraction integrated device.
Background
Coal is used as an important basic energy source in China, and provides a solid guarantee for the development of social economy and the smooth development of personal daily life. With the increasing of the mining depth, the threats of mine disasters such as coal and gas outburst, gas explosion, rock burst and the like to the safe and efficient production of coal mines are increasing day by day.
The tunneling operation of the tunneling working face is an important link in the mine production process and is also an easy-to-occur place of mine disasters; in particular, for coal and gas outburst mines, although measures and means are taken to eliminate the coal and gas outburst risk of coal beds, coal and gas outburst accidents in coal mines still happen frequently due to the complexity of coal beds, geology and gas occurrence conditions.
During the tunneling process of the tunneling working face, the gas released by coal body crushing and the generated coal powder cause the concentration of the gas and the respiratory dust on the tunneling working face to exceed the limit, and the normal production of a mine and the life safety of underground workers are seriously threatened. Therefore, the problems of casualties caused by gas and respiratory dust concentration overrun, coal and gas outburst and the like, and induced gas explosion, coal dust explosion and the like in the underground tunneling process are urgently solved, and further, the powerful guarantee is provided for safe and efficient production of mines and life health of underground workers.
Disclosure of Invention
The invention aims to provide an outburst prevention, dust fall and extraction integrated device for an underground tunneling working face, and aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides an outburst prevention, dust fall and extraction integrated device for an underground tunneling working face, which comprises an explosion-proof partition plate assembly, a support assembly, an air bag assembly, an atomization dust removal and extraction assembly and a tunneling machine, wherein the explosion-proof partition plate assembly is arranged in a roadway; and the explosion-proof clapboard component is provided with a working hole with adjustable size and position, and a drill bit of the heading machine penetrates through the working hole and then is abutted against coal bodies behind a heading working face.
Preferably, the explosion-proof partition plate assembly comprises two support plates which are arranged in parallel from top to bottom, an upper explosion-proof partition plate which is arranged above and fixedly connected with a plurality of groups of parallel arrangement of the support plates, and a lower explosion-proof partition plate which is arranged below and fixedly connected with a plurality of groups of parallel arrangement of the support plates, wherein the upper explosion-proof partition plate and the lower explosion-proof partition plate are expansion plates.
Preferably, the upper explosion-proof clapboard and the lower explosion-proof clapboard are both transparent explosion-proof plates.
Preferably, the distance between the explosion-proof clapboard component and the coal body behind the tunneling working face is set to be 1.5m-2.5 m.
Preferably, the supporting assembly comprises a plurality of horizontal anchor rods connected to coal walls on two sides of the roadway, a plurality of vertical anchor rods connected to a top plate of the roadway and a plurality of radial anchor rods arranged along the tunneling direction; the anchor rod connecting pieces are fixedly connected to two ends of the supporting plate, and the anchor rod connecting pieces located above the supporting plate are fixedly connected with the horizontal anchor rods, the vertical anchor rods and the radial anchor rods which are adjacent to the anchor rod connecting pieces; the anchor rod connecting piece positioned below is fixedly connected with the horizontal anchor rod and the radial anchor rod which are adjacent to the anchor rod connecting piece.
Preferably, the safety airbag assembly comprises airbag shells arranged on two sides of the upper explosion-proof partition plate and the lower explosion-proof partition plate, and the airbag shells are fixedly connected with the supporting assembly; every gasbag casing inside all is provided with the air bag of compression fold condition, air bag's import sets up between explosion-proof partition plate subassembly and the driving face rear coal body.
Preferably, the upper explosion-proof partition plate and the lower explosion-proof partition plate are protruded towards the coal body behind the tunneling working face, and the distance from the center of the explosion-proof partition plate assembly to the coal body behind the tunneling working face is smaller than the distance from the circumferential direction of the explosion-proof partition plate assembly to the coal body behind the tunneling working face.
Preferably, the atomization dust removal and extraction assembly comprises an integrated pipeline, a water supply pipe and a gas extraction pipe are arranged inside the integrated pipeline, one side, facing the coal body behind the driving face, of the explosion-proof partition plate assembly is connected with an atomization nozzle and a sensor, the atomization nozzle is communicated with the water supply pipe, and the air inlet end of the gas extraction pipe is arranged between the explosion-proof partition plate assembly and the driving face.
Preferably, the heading machine comprises a heading machine body, a heading machine drill rod is arranged on one side of the heading machine body, and the drill bit is fixedly arranged at the end part of the heading machine drill rod.
Preferably, the end parts, close to the upper explosion-proof partition plate and the lower explosion-proof partition plate, of the upper explosion-proof partition plate and the lower explosion-proof partition plate are fixedly connected with a shock absorption gasket and a laser range finder respectively, the laser range finder is used for measuring the distance from the upper explosion-proof partition plate and the lower explosion-proof partition plate to a drill bit or a drill rod of a heading machine, the two laser range finders are electrically connected to the same controller, and the controller is electrically connected with the heading machine and the explosion-proof partition plate assembly respectively.
The invention discloses the following technical effects: the invention fixedly connects the explosion-proof clapboard component with the roadway and the safety air bag component with the roadway through the supporting component, improves the stability of the explosion-proof clapboard component and the safety air bag component, the drill bit of the tunneling machine passes through the working hole with adjustable size and position and then contacts with the coal body behind the tunneling working face to carry out coal mining work, the atomization dust removal and extraction component carries out atomization dust fall on the coal dust generated in the tunneling process, solves the problem that the concentration of the coal dust on the underground tunneling working face exceeds the limit, improves the underground working environment, and the gas released in the tunneling process is extracted, so that accidents such as gas explosion, coal dust explosion and the like caused by the fact that the concentration of the gas is over-limit are avoided, and when the coal and the gas are protruded, the safety air bag component collects the protruded coal and gas, thereby further avoiding the occurrence of casualties, the damage of equipment and the occurrence of gas/coal dust explosion disasters caused after disasters.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of a safety shield apparatus according to the present invention;
FIG. 2 is a top view of the safety shield apparatus of the present invention;
FIG. 3 is a top view of the safety shield after coal and gas outburst;
FIG. 4 is a schematic view of the construction of the burst disk assembly of the present invention;
fig. 5 is a schematic structural view of a working hole of the present invention.
Wherein, 1, a coal body behind a driving face; 2. radial anchor rods; 3. an atomizing spray head; 4. a sensor; 5. an air bag; 6. a gas extraction pipe; 7. a water supply pipe; 8. an integrated pipeline; 9. a drill bit; 10. an upper explosion-proof partition plate; 11. a laser range finder; 12. a drill rod of the development machine; 13. a heading machine; 14. a shock-absorbing pad; 15. a lower burst disk; 16. a vertical anchor rod; 17. a horizontal anchor rod; 18. an air bag housing; 19. an explosion-proof bulkhead assembly; 20. prominent coal and gas; 21. an anchor rod connecting piece; 22. a support plate; 23. coal walls.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1-5, the invention provides an outburst prevention, dust fall and extraction integrated device for an underground tunneling working face, which comprises an explosion-proof clapboard component arranged in a roadway, a support component detachably connected between the explosion-proof clapboard component and the side wall of the roadway, an air bag component detachably connected with the support component, an atomization dust removal and extraction component arranged between the explosion-proof clapboard component and a coal body 1 behind the tunneling working face, and a tunneling machine 13; the explosion-proof clapboard component is provided with a working hole with adjustable size and position, and a drill bit 9 of the development machine 13 penetrates through the working hole and then is abutted against the coal body 1 behind the development working face.
Further optimize the scheme, the explosion-proof baffle subassembly includes two backup pads 22 of parallel arrangement from top to bottom, and the backup pad 22 fixedly connected with a plurality of groups parallel arrangement's that is located the top last explosion-proof baffle 10, and the backup pad 22 fixedly connected with a plurality of groups parallel arrangement's that is located the below lower explosion-proof baffle 15, goes up explosion-proof baffle 10 and is the expansion plate with explosion-proof baffle 15 down. The expansion plate is controlled to expand and contract through a hydraulic cylinder. The upper explosion-proof clapboard 10 and the lower explosion-proof clapboard 15 are adjusted to be lifted along with the movement of the drill bit 9, the size and the position of the working hole are adjusted, and the normal operation of the tunneling work is ensured.
According to the further optimized scheme, the upper explosion-proof partition plate 10 and the lower explosion-proof partition plate 15 are transparent explosion-proof plates, so that workers can conveniently observe the tunneling condition of the coal body 1 behind the tunneling working face in real time.
According to the further optimized scheme, the distance between the explosion-proof partition plate assembly and the coal body 1 behind the tunneling working face is set to be 1.5-2.5 m, so that the tunneling angle of a drill bit 9 of the tunneling machine 13 can be adjusted behind the explosion-proof partition plate assembly 19, and the coal body behind the safety airbag 5 can be excavated.
According to a further optimized scheme, the supporting component comprises a plurality of horizontal anchor rods 17 connected to coal walls on two sides of the roadway, a plurality of vertical anchor rods 16 connected to a top plate of the roadway and a plurality of radial anchor rods 2 arranged along the tunneling direction; anchor rod connecting pieces 21 are fixedly connected to two ends of the supporting plate 22, and the anchor rod connecting piece 21 positioned above is fixedly connected with the horizontal anchor rod 17, the vertical anchor rod 16 and the radial anchor rod 2 which are adjacent to the anchor rod connecting piece 21; the lower anchor rod connecting piece 21 is fixedly connected to the adjacent horizontal anchor rod 17 and radial anchor rod 2. Every two of the horizontal anchor rod 17, the vertical anchor rod 16 and the radial anchor rod 2 are perpendicular to each other, wherein the vertical anchor rod 16 and the horizontal anchor rod 17 are also used as supporting anchor rods along the coal wall 23 and the top plate in the supporting process, one rod dual-purpose is achieved, the radial anchor rod 2 plays a role in strengthening and fixing the upper explosion-proof partition plate 10 and the lower explosion-proof partition plate 15, and the capability of resisting damage after coal and gas outburst occurs is enhanced.
According to a further optimized scheme, the safety airbag assembly comprises airbag shells 18 arranged on two sides of an upper explosion-proof partition plate 10 and a lower explosion-proof partition plate 15, and the airbag shells 18 are fixedly connected with a supporting assembly; an air bag 5 is arranged in a compressed and folded state in each air bag shell 18, and the inlet of the air bag 5 is arranged between the anti-explosion partition plate assembly and the heading face. In the normal state, the airbag 5 is stored in the airbag housing 18 by compression folding; when coal and gas outburst occurs, the coal and gas outburst collecting device is used for collecting broken coal bodies and gas after outburst, and further avoiding the occurrence of disasters such as casualties, damage of equipment and equipment, gas explosion and coal dust explosion after disasters.
According to the further optimization scheme, the upper explosion-proof partition plate 10 and the lower explosion-proof partition plate 15 are protruded towards the coal body 1 behind the driving face, the distance from the center of the explosion-proof partition plate assembly to the coal body 1 behind the driving face is smaller than the distance from the periphery of the explosion-proof partition plate assembly to the coal body 1 behind the driving face, a guiding effect is achieved when coal and gas outburst occurs, and the outburst coal body and the gas can burst to the safety airbags 5 on two sides of a roadway conveniently.
According to the further optimization scheme, the atomization dust removal and extraction assembly comprises an integrated pipeline 8, a water supply pipe 7 and a gas extraction pipe 6 are arranged inside the integrated pipeline 8, one side, facing the coal body 1 behind the driving face, of the explosion-proof partition plate assembly is connected with an atomization nozzle 3 and a sensor 4, the atomization nozzle 3 is communicated with the water supply pipe 7, and the air inlet end of the gas extraction pipe 6 is arranged between the explosion-proof partition plate assembly and the coal body 1 behind the driving face. The gas extraction pipe 6 extracts gas released by the broken coal body in the tunneling process, so that the gas concentration of the tunneling working face is reduced; the sensor 4 mainly comprises a gas concentration sensor and a coal dust concentration sensor, and is used for monitoring the gas concentration and the coal dust concentration in real time in the tunneling process; the atomizing nozzle 3 atomizes water in the water supply pipe 7, the atomized water is sprayed on the tunneling working face, coal dust suspended in air is captured, wetted and gathered, the effect of reducing the concentration of the coal dust, particularly the concentration of respiratory dust is achieved, and the working environment of the tunneling working face is further improved.
In a further optimized scheme, the heading machine 13 comprises a heading machine body, a heading machine drill rod 12 is arranged on one side of the heading machine body, and the drill bit 9 is fixedly arranged at the end part of the heading machine drill rod 12.
Further optimizing scheme, the equal fixedly connected with shock attenuation gasket 14 of tip that last explosion-proof barrier 10 and lower explosion-proof barrier 15 are close to mutually and laser range finder 11, laser range finder 11 is used for measuring the distance of last explosion-proof barrier 10 and lower explosion-proof barrier 15 to drill bit 9 or entry driving machine drilling rod 12, and wherein two sets of laser range finder 11 electric connection are in same controller, controller and entry driving machine 13, the equal electric connection of explosion-proof barrier subassembly. The laser range finder 11 transmits the measurement result to the controller, so as to adjust the telescopic states of the upper explosion-proof partition plate 10 and the lower explosion-proof partition plate 15, prevent the upper explosion-proof partition plate 10 and the lower explosion-proof partition plate 15 from colliding with the drill bit 9 or the drill rod 12 of the heading machine, and ensure that the heading work is smoothly carried out. The shock absorption gasket 14 is made of flame-retardant, wear-resistant and antistatic materials, and plays a role in shock absorption and static prevention.
A use method of an outburst prevention, dust fall and extraction integrated device for an underground tunneling working face comprises the following steps: the method comprises the following steps:
s1, supporting a top plate and two sides of a coal wall 23 by using an anchor net and anchor rods, and fixing radial anchor rods 2 near four corner points of a coal body in front of a driving face;
s2, taking the distance of 1.5m-2.5m in front of the coal body of the driving face as the mounting and fixing positions of the explosion-proof partition plate assembly 19 and the safety airbag 5, and determining the positions of the vertical anchor rods 16 and the horizontal anchor rods 17 in a convex arrangement mode;
s3, fixing a plurality of radial anchor rods 2, vertical anchor rods 16 and horizontal anchor rods 17 at specified positions through anchor rod connecting pieces 21, and fixedly connecting the radial anchor rods 2, the vertical anchor rods 16 and the horizontal anchor rods 17 with two groups of supporting plates 22, wherein the upper explosion-proof partition plate 10 is connected and fixed by the radial anchor rods 2, the vertical anchor rods 16 and the horizontal anchor rods 17 which are vertical to each other in three directions, and the lower explosion-proof partition plate 15 is connected and fixed by the radial anchor rods 2 and the horizontal anchor rods 17;
s4, safety airbags 5 are respectively installed on two sides of the explosion-proof partition plate assembly 19 and are fixedly connected through adjacent anchor rods, so that the explosion-proof partition plate assembly is guaranteed to have strong disaster-resistant capacity;
s5, installing the integrated pipeline 8 above the safety airbag 5, and supporting and fixing by using an anchor rod connecting piece 21 above the safety airbag 5;
s6, moving the drill bit 9 of the development machine 13 to the position near the explosion-proof partition plate assembly 19, measuring the distance from the upper explosion-proof partition plate 10 and the lower explosion-proof partition plate 15 to the drill bit 9 or the development machine drill rod 12 by the laser range finder 11, transmitting the measurement result to the controller, and further adjusting the telescopic state of the upper explosion-proof partition plate 10 and the lower explosion-proof partition plate 15 so as to ensure that the development machine drill bit 9 and the development machine drill rod 12 can safely penetrate through the explosion-proof partition plate assembly 19;
s7, observing and adjusting the position and the tunneling angle of a drill bit 9 of the tunneling machine through the anti-explosion partition plate assembly 19, and automatically adjusting the telescopic states of the upper anti-explosion partition plate 10 and the lower anti-explosion partition plate 15 by the controller according to real-time data measured by the laser range finder 11 to avoid collision between the upper anti-explosion partition plate 10 and the lower anti-explosion partition plate 15 and the drill bit 9 or a drill rod 12 of the tunneling machine;
s8, monitoring the gas concentration and the coal dust concentration in the tunneling process in real time by the sensor 4, recording and transmitting the measured data, and extracting the gas released in the tunneling process by the gas extraction pipe 6 to prevent the gas concentration from exceeding the limit;
s9, the atomizing nozzle 3 atomizes the water in the water supply pipe 7, and the atomized water is sprayed on the driving face to capture, wet and gather coal dust, so that the concentration of the coal dust, especially respiratory dust, is reduced, and the working environment of the driving face is improved;
s10, after the coal and the gas are protruded, the crushed coal and the gas enter the safety airbag 5 along the anti-explosion partition plate assembly 19 which is arranged in a convex shape, so that the disasters such as casualties, damage of equipment, gas explosion, coal dust explosion and the like caused by disasters are avoided.
This example has the following effects:
(1) the vertical anchor rod 16 and the horizontal anchor rod 17 in the support assembly can be used as support anchor rods along the coal wall and the top plate in the support process, the workload of arranging anchor rods again is reduced, the use times of the anchor rods are increased, the average cost of the anchor rods is reduced, and the effect of one-rod dual-purpose is achieved.
(2) According to the implementation, the sensor 4 and the atomizing nozzle 3 are installed above the anti-explosion partition plate assembly 19, coal dust generated in the tunneling process is atomized and reduced in dust, the problem that the concentration of the coal dust on an underground tunneling working face is out of limit is solved, the underground working environment is improved, the suction amount of underground workers to respiratory coal dust is reduced, and the risk of occupational diseases such as pneumoconiosis and silicosis is reduced.
(3) According to the implementation, the gas extraction pipe 6 is arranged above the anti-explosion partition plate assembly 19, so that gas released in the tunneling process is extracted, and accidents such as gas explosion, coal dust explosion and the like caused by gas concentration overrun are avoided; meanwhile, gas extraction is carried out in a limited space, so that the coal seam gas extraction rate is improved, the emission of greenhouse gases is reduced, and the workload of a ventilator caused by gas overrun is relieved.
(4) In the implementation, the laser distance measuring instrument 11 is adopted to measure the distance from the upper explosion-proof partition plate 10 and the lower explosion-proof partition plate 15 to the drill bit 9 or the drill rod 12 of the development machine, and the telescopic states of the upper explosion-proof partition plate 10 and the lower explosion-proof partition plate 15 are automatically adjusted through the controller, so that the workload of manual operation is reduced, and the automation of equipment operation is realized.
(5) The safety air bags 5 are arranged on two sides of the explosion-proof partition plate, and after coal and gas burst, broken coal and gas enter the safety air bags, so that the accidents of casualties, damage of equipment, gas explosion, coal dust explosion and the like caused by disasters are avoided.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are only intended to illustrate the preferred embodiments of the present invention, and not to limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (8)
1. The utility model provides a tunneling working face prevents suddenly-falls dust and takes out and adopt integrated device in pit which characterized in that: the device comprises an explosion-proof clapboard component (19) arranged in a roadway, a support component detachably connected between the explosion-proof clapboard component (19) and the side wall of the roadway, a safety airbag component detachably connected with the support component, an atomization dust removal and extraction component arranged between the explosion-proof clapboard component (19) and a coal body (1) behind a driving face, and a heading machine (13); a working hole with adjustable size and position is formed in the explosion-proof partition plate assembly (19), and a drill bit (9) of the heading machine (13) penetrates through the working hole and then abuts against a coal body (1) behind a heading face;
the anti-explosion partition plate assembly (19) comprises two support plates (22) which are arranged in parallel up and down, a plurality of groups of upper anti-explosion partition plates (10) which are arranged in parallel are fixedly connected to the support plate (22) which is positioned above the anti-explosion partition plate assembly, a plurality of groups of lower anti-explosion partition plates (15) which are arranged in parallel are fixedly connected to the support plate (22) which is positioned below the anti-explosion partition plate assembly, and the upper anti-explosion partition plates (10) and the lower anti-explosion partition plates (15) are all expansion plates;
the safety airbag assembly comprises airbag shells (18) arranged on two sides of an upper explosion-proof partition plate (10) and a lower explosion-proof partition plate (15), and the airbag shells (18) are fixedly connected with a supporting assembly; an air bag (5) in a compressed and folded state is arranged in each air bag shell (18), and an inlet of the air bag (5) is arranged between the explosion-proof partition plate assembly (19) and the coal body (1) behind the tunneling working face; in the normal state, the airbag (5) is stored in the airbag housing (18) by compression folding; when coal and gas outburst occurs, the coal and gas outburst collecting device is used for collecting broken coal bodies and gas after outburst, and further avoiding casualties, damage of equipment and equipment, and gas explosion and coal dust explosion after disasters;
the use method of the outburst prevention-dust fall-extraction integrated device for the underground tunneling working face comprises the following steps: the method comprises the following steps:
s1, supporting two sides of a top plate and a coal wall by using an anchor net and anchor rods, and fixing radial anchor rods near four corner points of a coal body in front of a driving face;
s2, taking the distance of 1.5-2.5 m in front of the coal body of the driving face as the mounting and fixing positions of an explosion-proof partition plate assembly (19) and an air bag (5), and determining the positions of a vertical anchor rod and a horizontal anchor rod according to a convex arrangement mode;
s3, fixing a plurality of radial anchor rods, vertical anchor rods and horizontal anchor rods at specified positions through anchor rod connecting pieces, and fixedly connecting the radial anchor rods, the vertical anchor rods and the horizontal anchor rods with two groups of supporting plates (22), wherein the upper explosion-proof partition plate (10) is connected and fixed by the radial anchor rods, the vertical anchor rods and the horizontal anchor rods which are mutually vertical in three directions, and the lower explosion-proof partition plate (15) is connected and fixed by the radial anchor rods and the horizontal anchor rods;
s4, safety air bags (5) are respectively arranged on two sides of the explosion-proof partition plate assembly (19) and fixedly connected through adjacent anchor rods, so that the explosion-proof partition plate assembly is ensured to have strong disaster resistance;
s5, mounting the integrated pipeline above the safety airbag (5), and supporting and fixing by using an anchor rod connecting piece above the safety airbag (5);
s6, moving a drill bit of the heading machine (13) to the position close to the anti-explosion partition plate assembly (19), measuring the distance from the upper anti-explosion partition plate (10) and the lower anti-explosion partition plate (15) to the drill bit or a drill rod of the heading machine by using a laser range finder, transmitting the measurement result to a controller, and further adjusting the telescopic state of the upper anti-explosion partition plate (10) and the lower anti-explosion partition plate (15) to ensure that the drill bit of the heading machine and the drill rod of the heading machine can safely penetrate through the anti-explosion partition plate assembly (19);
s7, observing and adjusting the position and the tunneling angle of a drill bit of the tunneling machine through the anti-explosion partition plate assembly (19), and automatically adjusting the telescopic states of the upper anti-explosion partition plate (10) and the lower anti-explosion partition plate (15) by the controller according to real-time data measured by the laser range finder to avoid collision between the upper anti-explosion partition plate (10) and the lower anti-explosion partition plate (15) and the drill bit or a drill rod of the tunneling machine;
s8, monitoring the gas concentration and the coal dust concentration in the tunneling process in real time by a sensor, recording and transmitting the measured data, and extracting the gas released in the tunneling process by a gas extraction pipe to prevent the gas concentration from exceeding the limit;
s9, atomizing water in the water supply pipe by using an atomizing nozzle, spraying the atomized water on a driving face to capture, wet and gather coal dust, reducing the concentration of the coal dust and improving the working environment of the driving face;
s10, after the coal and the gas are protruded, the crushed coal and the gas enter the safety airbag (5) along the anti-explosion partition plate assembly (19) which is arranged in a convex shape, so that the casualties, the damage of equipment and the gas explosion and coal dust explosion caused after disasters are avoided.
2. The integrated device for preventing outburst, reducing dust and pumping of the underground tunneling working face according to claim 1, which is characterized in that: the upper explosion-proof partition plate (10) and the lower explosion-proof partition plate (15) are both transparent explosion-proof plates.
3. The integrated device for preventing outburst, reducing dust and pumping of the underground tunneling working face according to claim 1, which is characterized in that: the distance between the explosion-proof clapboard component (19) and the coal body (1) behind the tunneling working face is set between 1.5m and 2.5 m.
4. The underground excavation working face outburst prevention-dust fall-extraction integrated device according to claim 1, which is characterized in that: the supporting component comprises a plurality of horizontal anchor rods (17) connected to coal walls on two sides of the roadway, a plurality of vertical anchor rods (16) connected to a top plate of the roadway and a plurality of radial anchor rods (2) arranged along the tunneling direction; anchor rod connecting pieces (21) are fixedly connected to two ends of the supporting plate (22), and the upper anchor rod connecting piece (21) is fixedly connected with the horizontal anchor rod (17), the vertical anchor rod (16) and the radial anchor rod (2) which are adjacent to the upper anchor rod connecting piece; the anchor rod connecting piece (21) positioned below is fixedly connected with the horizontal anchor rod (17) and the radial anchor rod (2) adjacent to the anchor rod connecting piece.
5. The integrated device for preventing outburst, reducing dust and pumping of the underground tunneling working face according to claim 1, which is characterized in that: go up explosion-proof baffle (10) and explosion-proof baffle (15) down and all protruding to tunnelling working face rear coal body (1), just the distance between explosion-proof baffle subassembly (19) center to tunnelling working face rear coal body (1) is less than the distance between explosion-proof baffle subassembly (19) circumference to tunnelling working face rear coal body (1).
6. The integrated device for preventing outburst, reducing dust and pumping of the underground tunneling working face according to claim 1, which is characterized in that: atomizing dust removal and adopt the subassembly and include integrated circuit (8), integrated circuit (8) inside is provided with delivery pipe (7) and gas drainage pipe (6), explosion-proof partition plate subassembly (19) are connected with atomizer (3) and sensor (4) towards one side of tunnelling working face rear coal body (1), atomizer (3) are linked together with delivery pipe (7), the inlet end setting of gas drainage pipe (6) is in between explosion-proof partition plate subassembly (19) and the tunnelling working face.
7. The integrated device for preventing outburst, reducing dust and pumping of the underground tunneling working face according to claim 1, which is characterized in that: the heading machine (13) comprises a heading machine body, a heading machine drill rod (12) is arranged on one side of the heading machine body, and the drill bit (9) is fixedly arranged at the end part of the heading machine drill rod (12).
8. The underground excavation working face outburst prevention, dust fall and extraction integrated device according to claim 7, and is characterized in that: go up equal fixedly connected with shock pad (14) of tip and laser range finder (11) that explosion-proof partition (10) and lower explosion-proof partition (15) are close to mutually, laser range finder (11) are used for measuring the distance of last explosion-proof partition (10) and lower explosion-proof partition (15) to drill bit (9) or entry driving machine drilling rod (12), and are two sets of laser range finder (11) electric connection is at same controller, controller and entry driving machine (13), the equal electric connection of explosion-proof partition subassembly (19).
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| DE19631881C1 (en) * | 1996-08-07 | 1997-08-07 | Ruhrkohle Ag | Method of fixing explosion barrier in underground mining and tunnelling operations |
| CN203321519U (en) * | 2013-06-04 | 2013-12-04 | 平顶山市铁福来机电设备有限公司 | Full-automatic belt lane wind current isolation device |
| CN104329111A (en) * | 2014-10-08 | 2015-02-04 | 中国矿业大学 | Mining near zero wind resistance dustfall curtain method |
| KR101861807B1 (en) * | 2016-01-25 | 2018-05-28 | 서울과학기술대학교 산학협력단 | Explosion-proof tunnel using corrugated steel plate |
| CN206205927U (en) * | 2016-12-05 | 2017-05-31 | 山西石泉煤业有限责任公司 | A kind of dust-proof water curtain device for coal mine roadway |
| CN110454174B (en) * | 2019-09-18 | 2020-10-20 | 中国矿业大学 | Isolated tunneling machine and isolated extraction method for high gas mine |
| CN212154837U (en) * | 2019-10-28 | 2020-12-15 | 西安科技大学 | Tunnel dust removal curtain device |
| CN111396117B (en) * | 2020-05-14 | 2021-04-27 | 徐州工程学院 | Method for achieving dust settling through linkage of liquid nitrogen mist and fine water mist on fully mechanized excavation face |
| CN114033471B (en) * | 2021-10-27 | 2024-08-06 | 中国煤炭科工集团太原研究院有限公司 | Intelligent dust removing robot suitable for heading machine |
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