CN115992730A - Safety protection device for underground operation - Google Patents
Safety protection device for underground operation Download PDFInfo
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- CN115992730A CN115992730A CN202310099354.5A CN202310099354A CN115992730A CN 115992730 A CN115992730 A CN 115992730A CN 202310099354 A CN202310099354 A CN 202310099354A CN 115992730 A CN115992730 A CN 115992730A
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- 239000003245 coal Substances 0.000 claims abstract description 83
- 238000005065 mining Methods 0.000 claims abstract description 62
- 238000007789 sealing Methods 0.000 claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 238000010521 absorption reaction Methods 0.000 claims abstract description 19
- 238000001816 cooling Methods 0.000 claims description 27
- 230000007480 spreading Effects 0.000 claims description 26
- 238000003892 spreading Methods 0.000 claims description 26
- 239000007921 spray Substances 0.000 claims description 24
- 210000000078 claw Anatomy 0.000 claims description 21
- 238000001125 extrusion Methods 0.000 claims description 21
- 238000004140 cleaning Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 12
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 7
- 238000007790 scraping Methods 0.000 claims description 6
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 30
- 230000008569 process Effects 0.000 abstract description 26
- 238000001179 sorption measurement Methods 0.000 abstract description 19
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 9
- 235000017491 Bambusa tulda Nutrition 0.000 description 9
- 241001330002 Bambuseae Species 0.000 description 9
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 9
- 239000011425 bamboo Substances 0.000 description 9
- 238000010030 laminating Methods 0.000 description 9
- 239000006185 dispersion Substances 0.000 description 8
- 239000011435 rock Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000036346 tooth eruption Effects 0.000 description 4
- 206010017740 Gas poisoning Diseases 0.000 description 3
- 238000004880 explosion Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 239000010883 coal ash Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a safety protection device for underground operation, which belongs to the field of underground operation and comprises a coal mining conveying belt, wherein a servo motor is arranged in the coal mining conveying belt, a collecting mechanism is arranged at the top of the coal mining conveying belt, a release absorption mechanism is arranged at the top of the coal mining conveying belt, and the release absorption mechanism comprises a closed cover which is connected to the top of the coal mining conveying belt in a clamping manner. According to the invention, coal ore mined by the coal mining machine is conveyed to the top of the conveying belt through the collecting mechanism, then the lifting sealing cover is driven to descend through the exhaust pipe to seal the coal mine at the conveying part, meanwhile, when the exhaust pipe exhausts gas into the conveying belt, gas in a free state can be accelerated to flow upwards, and gas lighter than air is collected through the exhaust pipe, so that the gas which is converted from an adsorption state to a free state in dispersed ore in the collecting process is intensively absorbed, the gas in the adsorption state is continuously gushed out in the ore in the subsequent conveying process, and the gas concentration in the conveying process is reduced.
Description
Technical Field
The invention relates to the technical field of underground operation, in particular to a safety protection device for underground operation.
Background
When mining a mine ore body, it is often necessary to perform downhole operations, including: underground coal mining operation, underground tunneling operation, underground electric operation, underground blasting operation, underground ventilation operation, underground safety monitoring operation, operation of a coal mine lifter, operation of water detection and drainage of a coal mine and the like.
When underground coal mining is carried out, coal mining machines are adopted to cut coal rocks to mine the coal mine at present, gas absorbed in the coal mining machines is released into a mining working area in the coal mining process, gas concentration is increased, the coal mining machines can rub the surfaces of the coal rocks, meanwhile, the coal mine self can raise the temperature of the mining environment due to oxidization in the mining process, so that gas release is accelerated, most of the gas in the coal mine exists in an adsorption state under natural conditions, a small amount of the gas is dissociated in loose pores in the coal mine, when the coal mining machines are used for cutting the coal rocks, the cutting surface is cooled by spraying cooling liquid, small-volume ore is formed after the coal rocks are cut, at this time, the coal mine is wholly differentiated into the ore, the sealing environment of the gas in the coal rocks can be destroyed, namely, the gas pressure is reduced, meanwhile, the temperature of the mining environment is higher than that of the coal rocks, and the gas can be changed from the adsorption state to the dissociated state.
The gas absorption pipeline is usually arranged at the top of the supporting mechanism at the top of the mining face, but because the humidity is high in the underground mining process, the adsorption of the ore to the gas is enhanced, the gas in the adsorption state cannot be absorbed at the top of the mining face, the humidity of the coal mine is reduced due to evaporation of water in a path for transporting the coal mine, meanwhile, after the evaporation of the water is finished, the condition of heating can occur, at the moment, the gas in the partial adsorption state of the coal mine is converted into a free state, the gas is drifted in a coal mine transportation channel, the gas emission amount on the coal mine transportation path is increased, the concentration of the gas in the transportation space along the way is accelerated, and the potential safety hazard of gas poisoning and gas explosion of transportation path walking workers exists.
We therefore propose a safety shield apparatus for use in a downhole operation.
Disclosure of Invention
The invention aims to solve the problems that a traditional coal mine gas absorption ventilation system is usually arranged at the top of a mining surface and absorbs gas in the mining process in the prior art, but because the gas in an absorption state in a cooled coal mine is difficult to free out of the ore, the emission quantity of the gas on a coal mine transportation path is increased, the concentration of the gas in a transportation space is accelerated to be increased, and the gas poisoning and gas explosion safety hazards of transportation path walking workers exist.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the safety protection device for underground operation comprises a coal mining conveyor belt, wherein a servo motor is arranged in the coal mining conveyor belt, a collecting mechanism is arranged at the top of the coal mining conveyor belt, and a release absorption mechanism is arranged at the top of the coal mining conveyor belt;
the collecting mechanism comprises a conveying roller which is rotationally connected to the inside of a coal mining conveying belt, the top of the conveying roller is in transmission connection with the conveying belt, the top of the conveying belt is fixedly connected with a driving bar, the side surface of the coal mining conveying belt is provided with a collecting support, the front end of the collecting support is fixedly connected with a driving motor, the inner wall of the collecting support is rotationally connected with a collecting arm, the outer side of the coal mining conveying belt is clamped with a collecting tube, the inner wall of the collecting tube is fixedly connected with a scattered fixed arc rod, the outer surface of the scattered fixed arc rod is inserted with cutting teeth, the inner wall of the collecting tube is fixedly connected with a laminating ring, the inner top wall of the collecting tube is provided with a laminating groove, the top of the collecting tube is fixedly connected with a cooling spray pipe, the cooling spray pipe is electrically connected with an electromagnetic valve, the inner wall of the collecting tube is slidingly connected with a touch slide block, the bottom of the touch slide block is provided with a sliding arc surface, and the bottom of the touch slide block is slidingly connected with the top of the collecting arm, and the electromagnetic valve is electrically connected with the touch slide block;
the release absorption mechanism comprises a sealing cover which is connected to the top of the coal mining conveyor belt in a clamping manner, the bottom of the sealing cover is fixedly connected with the top of the collecting cylinder, the inner wall of the sealing cover is slidably connected with a lifting sealing cover, the top of the lifting sealing cover is fixedly communicated with an exhaust pipe, the outer surface of the exhaust pipe is sleeved with a lifting sealing sleeve, the inner wall of the sealing cover is fixedly communicated with an exhaust pipe, the inner top wall of the sealing cover is rotationally connected with a spreading bracket, the outer surface of the spreading bracket is fixedly connected with a spreading rod, the outer surface of the spreading bracket is fixedly connected with a driving gear which is connected with a conveying roller in a transmission manner, and the outer side of the driving gear is provided with a sealing cover.
Preferably, the outside fixedly connected with of collection arm collects extrusion claw, collect the surface of extrusion claw and the inner wall sliding connection of collection section of thick bamboo, just collect extrusion claw and the crisscross setting of dispersion fixed arc pole.
Preferably, the inner wall of the collecting cylinder is provided with a cleaning cavity, the cooling spray pipe is arranged on the inner top wall of the cleaning cavity, cooling spray heads are fixedly communicated with the inner side of the cooling spray pipe, and the cooling spray heads are symmetrically distributed about the collecting arm.
Preferably, the inner side of the touch sliding block is fixedly connected with a lifting inclined rod, the outer surface of the lifting inclined rod is provided with a rotary rack, and the rotary rack is meshed with a cleaning rod.
Preferably, the inside of clearance pole and the outside sliding connection of collection arm, the inboard fixedly connected with of clearance pole strike off the groove, the inner wall of strike off the groove is provided with and strikes off the wearing layer.
Preferably, the top fixedly connected with of lift closing cap rises the spring post, the exhaust hole has been seted up to the inner wall of lift closing cap, just the exhaust hole sets up in the inboard of lift closing cap, exhaust hole and blast pipe fixed communication, the bottom fixedly connected with of lift closing cap stabilizes the electro-magnet, the bottom of stabilizing the electro-magnet is connected with the top magnetic force of coal-winning conveyer belt.
Preferably, the gas with large mass is conveyed in the exhaust pipe, carbon dioxide is adopted for the gas with large mass, the exhaust pipe is arranged at the top of the closed cover, and the exhaust pipe are synchronously carried out.
Preferably, the inner wall of the closed cover is fixedly communicated with an exhaust branch pipe, and a jet head is arranged on the inner side of the closed cover.
Preferably, the spreading bars are provided with a plurality of spreading bars, and a plurality of spreading bars are rotationally distributed on the outer surface of the spreading support, the inner side of the conveying roller is provided with an elliptic hyperboloid, the outer side of the conveying roller is fixedly connected with a transmission gear meshed with the driving gear, and the outer surface of the conveying roller is provided with a fitting anti-slip layer with the conveying belt.
Compared with the prior art, the invention has the beneficial effects that:
1. through being provided with devices such as enclosure, lift closing cap and exhaust tube and mutually supporting, at the coal ore of mining the coal-winning machine through collection mechanism, carry the conveyer belt top, then drive the lift closing cap through the blast pipe and descend, the colliery of carrying the position is sealed, simultaneously when the blast pipe is to the conveyer belt in exhaust, can accelerate the upward flow of free state's gas, collect the gas that is lighter than the air simultaneously through the exhaust tube, thereby concentrate the absorption by the gas that the adsorption state changes into free state in the dispersed ore in the collection process, reduce the follow-up transportation in-process, continuously gush out the gas of adsorption state in the ore, reduce the gas concentration in the transportation process, thereby traditional colliery gas absorption ventilation system generally sets up with the exploitation face top in the prior art mentioned in the above-mentioned background art, absorb the gas in the exploitation process, but because there is the ore inside difficult to be free ore in adsorption state gas in the colliery after the cooling, there is the emission quantity that increases colliery transportation space gas, the problem of gas poisoning and gas explosion safety are gone up to transportation path space worker.
2. Through being provided with devices such as transportation roller bearing, conveyer belt and collection support and mutually supporting, carry to the coal mining conveyer belt through the ore that will fall in the collection section of thick bamboo through the collection arm, at this moment in the gathering process, the coal mining conveyer belt stops the motion, disperse fixed arc pole through the cooperation of collection arm and disperse the ore, carry it to the conveyer belt top, wait for the transportation, fall to the conveyer belt top at the dispersion and release and absorb the gas that the adsorption state changed into the free state, then start servo motor and carry the ore after reducing adsorption state gas concentration, accelerate adsorption state gas and change into the free state when carrying the ore, reach the effect of releasing adsorption state gas with higher speed.
3. Through being provided with devices such as a collection section of thick bamboo, laminating ring and laminating groove and mutually supporting, can be rather than sliding at the inside pivoted collection arm of collection section of thick bamboo, when collecting the extrusion claw and rotating the collection section of thick bamboo inner wall, clear up the surface of collecting the extrusion claw through cooling spray tube and clearance pole to can reduce driving motor consumption power at the collection support rotation in-process, laminating groove and collection arm laminating of seting up at the collection section of thick bamboo inner wall simultaneously can form the enclosed environment at dispersion ore in-process with the enclosure, conveniently absorb the gas of getting rid of this in-process conversion free state.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a safety device for downhole operation according to the present invention;
FIG. 2 is a schematic view showing a sliding connection between a collection barrel and a collection extrusion claw structure of a safety device for downhole operation according to the present invention;
FIG. 3 is an enlarged view of the structure of FIG. 2A in accordance with the present invention;
FIG. 4 is a rear view of the whole structure of a safety device for downhole operation according to the present invention;
FIG. 5 is a top view of a coal mining conveyor belt structure of a safety device for downhole operation according to the present invention;
FIG. 6 is a schematic diagram showing a transmission connection between a transportation roller and a transportation belt of a safety device for downhole operation according to the present invention;
FIG. 7 is a schematic diagram of a stand structure of a safety device for downhole operation according to the present invention;
FIG. 8 is a schematic diagram illustrating an internal structure of a safety device for downhole operation according to the present invention;
FIG. 9 is a schematic view of the inner structure of a fitting groove of the inner top wall of a collecting cylinder of a safety device for underground operation;
fig. 10 is a schematic diagram showing the fixed communication between the lifting sealing cover and the exhaust branch pipe structure of the safety protection device for underground operation.
In the figure: 1. a coal mining conveyor belt; 2. a servo motor; 3. a collection mechanism; 31. a transport roller; 32. a conveyor belt; 321. a drive bar; 33. collecting a bracket; 34. a collection arm; 341. collecting the extrusion claw; 35. a collection cylinder; 351. a laminating ring; 352. a bonding groove; 353. cooling spray pipe; 3531. cooling the spray head; 354. touching the sliding block; 355. lifting the inclined rod; 356. rotating the rack; 357. cleaning a rod; 36. dispersing and fixing arc rods; 361. cutting teeth; 4. releasing the absorbing mechanism; 41. a closure; 411. an exhaust branch pipe; 412. a jet head; 42. lifting the closing cap; 421. an exhaust pipe; 422. lifting the sealing sleeve; 423. lifting the spring column; 424. stabilizing the electromagnet; 43. an exhaust pipe; 44. spreading the support; 441. a drive gear; 442. a sealing cover; 45. spreading the uniformly-distributed rods; 46. a transmission gear.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.
Referring to fig. 1-10, a safety protection device for underground operation comprises a coal mining conveyor belt 1, wherein a servo motor 2 is arranged in the coal mining conveyor belt 1, a collecting mechanism 3 is arranged at the top of the coal mining conveyor belt 1, and a release absorption mechanism 4 is arranged at the top of the coal mining conveyor belt 1;
in the above technical solution, the ore mined by the coal mining machine is collected by the collecting mechanism 3, crushed, dispersed and conveyed to the top of the coal mining conveyor belt 1, then the gas converted from the adsorption state to the free state is absorbed by the release absorbing mechanism 4, meanwhile, the collecting arm 34 is cooled and cleaned by the collecting cylinder 35, after a period of absorption, the lifting sealing cover 42 is opened, the servo motor 2 is started to convey the ore, and thus the gas absorbing and conveying operation of the mined ore in the conveying process is completed.
Example 1
The embodiment is a collecting mechanism of a safety protection device for underground operation;
as shown in fig. 1-6 and 9, the collecting mechanism 3 comprises a transportation roller 31 rotatably connected to the inside of the coal mining transportation belt 1, a conveying belt 32 is in transmission connection with the top of the transportation roller 31, a driving bar 321 is fixedly connected to the top of the conveying belt 32, a collecting bracket 33 is arranged on the side surface of the coal mining transportation belt 1, a driving motor is fixedly connected to the front end of the collecting bracket 33, a collecting arm 34 is rotatably connected to the inner wall of the collecting bracket 33, a collecting barrel 35 is clamped to the outer side of the coal mining transportation belt 1, a dispersion fixed arc rod 36 is fixedly connected to the inner wall of the collecting barrel 35, cutting teeth 361 are inserted to the outer surface of the dispersion fixed arc rod 36, a laminating ring 351 is fixedly connected to the inner wall of the collecting barrel 35, a laminating groove 352 is formed in the inner top wall of the collecting barrel 35, a cooling spray pipe 353 is fixedly connected to the top of the collecting barrel 35, an electromagnetic valve is electrically connected to the inner wall of the collecting barrel 35, a sliding contact sliding block 354 is provided with a sliding arc surface at the bottom of the contact block 354, the bottom of the contact block 354 is in sliding connection with the top of the collecting arm 34, and the electromagnetic valve is electrically connected to the contact block 354;
according to the technical scheme, the ore falling into the collecting cylinder 35 is conveyed to the coal mining conveyor belt 1 through the collecting arm 34, at the moment, in the collecting process, the coal mining conveyor belt 1 stops moving, the ore is dispersed through the collecting arm 34 matched with the dispersion fixing arc rod 36, the ore is conveyed to the top of the conveying belt 32, the gas which is converted into the free state through the absorption state and falls into the top of the conveying belt 32 after being dispersed is waited for transportation, then the servo motor 2 is started to convey the ore with the concentration of the gas in the absorption state reduced, and the gas in the absorption state is accelerated to be converted into the free state while the ore is conveyed, so that the effect of accelerating the gas in the absorption state and releasing the gas in the absorption state is achieved;
based on the above, the collecting arm 34 rotating inside the collecting cylinder 35 slides with the collecting arm, when the collecting extrusion claw 341 rotates to the inner wall of the collecting cylinder 35, the outer surface of the collecting extrusion claw 341 is cleaned by the cooling spray pipe 353 and the cleaning rod 357, so that the power consumption of the driving motor can be reduced in the rotation process of the collecting bracket 33, meanwhile, the attaching groove 352 formed in the inner wall of the collecting cylinder 35 is attached to the collecting arm 34, and a closed environment can be formed with the closed cover 41 in the ore dispersing process, so that the gas converted into a free state in the process is conveniently absorbed and removed;
based on the above, when the collecting arm 34 rotates along the dispersing and fixing arc rod 36, the coal mine is cut by the cutting teeth 361, the ore in the conveying process is crushed and dispersed, and then the crushed and dispersed ore is conveyed to the top of the conveying belt 32, so that the coal mine crushing and dispersing process is completed;
based on the above, when the collecting arm 34 drives the touching slide block 354 to move upwards, the electromagnetic valve is conducted at this time, the collecting arm 34 in the rotating process is cooled through the cooling spray pipe 353, overheat is avoided in the rotating process of the collecting arm 34, gas is ignited, when the collecting arm 34 rotates to the coal mine entrance from the top of the collecting cylinder 35, the touching slide block 354 descends at this time, the cooling spray pipe 353 is closed, and the consumption of cooling solution is reduced.
Specifically, as shown in fig. 2, 3 and 9, the outer side of the collecting arm 34 is fixedly connected with a collecting extrusion claw 341, the outer surface of the collecting extrusion claw 341 is slidably connected with the inner wall of the collecting cylinder 35, the collecting extrusion claw 341 and the dispersing and fixing arc rods 36 are arranged in a staggered manner, a cleaning cavity is formed in the inner wall of the collecting cylinder 35, a cooling spray pipe 353 is arranged on the inner top wall of the cleaning cavity, cooling spray nozzles 3531 are fixedly communicated with the inner side of the cooling spray pipe 353, and the cooling spray nozzles 3531 are symmetrically distributed with respect to the collecting arm 34.
Through above-mentioned technical scheme, the collection section of thick bamboo 35 sets up to the water droplet form, is the colliery entry in the one side that the collection section of thick bamboo 35 kept away from conveyer belt 32, is dispersion ore transportation space in the opposite side, through the rotation of collection arm 34, can extrude the colliery of collecting extrusion claw 341 crooked direction to dispersion fixed arc pole 36, cuts the colliery, when collection arm 34 rotates to the inner wall at water droplet form collection section of thick bamboo 35 top, starts cooling shower nozzle 3531 and cools down and wets the surface of collecting extrusion claw 341.
Specifically, as shown in fig. 9, the lifting diagonal rod 355 is fixedly connected to the inner side of the touching slide block 354, the rotary rack 356 is arranged on the outer surface of the lifting diagonal rod 355, the cleaning rod 357 is meshed with the rotary rack 356, the inner side of the cleaning rod 357 is slidably connected with the outer side of the collecting arm 34, the scraping groove is fixedly connected to the inner side of the cleaning rod 357, and the scraping wear-resistant layer is arranged on the inner wall of the scraping groove.
Through the above technical scheme, the cross position of the collecting extrusion claw 341 outside the collecting arm 34 and the touching sliding block 354 are mutually extruded, the cooling spray head 3531 is conducted, meanwhile, the bottom of the lifting inclined rod 355 is extruded, the cleaning rod 357 is driven to move to a position close to the collecting extrusion claw 341, the coal ash on the outer surface of the collecting extrusion claw 341 is cleaned, meanwhile, the collecting arm 34 is gradually tightened along with the rotating position of the collecting arm 35, and the cleaning capacity of the coal ash on the outer surface of the collecting extrusion claw 341 is improved.
Example two
The embodiment is a release absorption mechanism of a safety protection device for underground operation;
as shown in fig. 7, 8 and 10, the release absorbing mechanism 4 comprises a closed cover 41 connected to the top of the coal mining conveyor belt 1 in a clamping manner, the bottom of the closed cover 41 is fixedly connected with the top of the collecting cylinder 35, the inner wall of the closed cover 41 is slidably connected with a lifting closed cover 42, the top of the lifting closed cover 42 is fixedly communicated with an exhaust pipe 421, the outer surface of the exhaust pipe 421 is sleeved with a lifting sealing sleeve 422, the inner wall of the closed cover 41 is fixedly communicated with an exhaust pipe 43, the inner top wall of the closed cover 41 is rotatably connected with a spreading bracket 44, the outer surface of the spreading bracket 44 is fixedly connected with a spreading rod 45, the outer surface of the spreading bracket 44 is fixedly connected with a driving gear 441 in transmission connection with the conveying roller 31, and the outer side of the driving gear 441 is provided with a sealing cover 442.
According to the technical scheme, coal ores mined by the coal mining machine are conveyed to the top of the conveying belt 32 through the collecting mechanism 3, then the lifting sealing cover 42 is driven to descend through the exhaust pipe 421 to seal coal mines at conveying positions, meanwhile, when the exhaust pipe 421 exhausts air into the conveying belt 32, gas in a free state can be accelerated to flow upwards, and gas lighter than air is collected through the exhaust pipe 43, so that gas which is converted from an adsorption state to a free state in dispersed ores in the collecting process is intensively absorbed, gas in the adsorption state is continuously gushed out in the ores in the subsequent conveying process is reduced, and gas concentration in the conveying process is reduced;
based on the above, after absorbing the gas in the interior through the exhaust pipe 43 for a period of time, the exhaust pipe 421 is closed, the lifting sealing cover 42 is driven to rise, and the conveying path of the conveying belt 32 in the conveying direction of the sealing cover 41 is conducted, so that when the servo motor 2 drives the conveying belt 32 to move, the driving strip 321 is driven to form a coal mine in the square to move to the outer side of the mining surface channel, and at the moment, the driving gear 441 is driven to start rotating, and then the spreading bracket 44 is driven to rotate, so that the coal mine at the top of the conveying belt 32 is spread evenly, and the possibility of dropping due to stacking of the coal mine in the conveying process is reduced.
Specifically, as shown in fig. 8 and 10, the top of the lifting sealing cover 42 is fixedly connected with a lifting spring post 423, the inner wall of the lifting sealing cover 42 is provided with an exhaust hole, the exhaust hole is arranged on the inner side of the lifting sealing cover 42 and fixedly communicated with the exhaust pipe 421, the bottom of the lifting sealing cover 42 is fixedly connected with a stabilizing electromagnet 424, the bottom of the stabilizing electromagnet 424 is magnetically connected with the top of the coal mining conveyor belt 1, the interior of the exhaust pipe 421 is used for conveying gas with large mass, the gas with large mass is carbon dioxide, the exhaust pipe 43 is arranged on the top of the sealing cover 41, the exhaust pipe 43 and the exhaust pipe 421 are synchronously performed, the inner wall of the sealing cover 41 is fixedly communicated with an exhaust branch pipe 411, and the inner side of the sealing cover 41 is provided with a jet head 412.
Through the above technical scheme, when the exhaust pipe 421 transmits carbon dioxide to the ore in the sealed cover 41 through the exhaust hole, the gas attached to the outer surface of the ore is driven upwards, so that the upward floating speed of the gas is accelerated, and the gas is conveniently accelerated to be collected in the exhaust pipe 43;
based on the above, when the lifting sealing cover 42 generates a downward force through the exhaust pipe 421, at this time, the lifting sealing sleeve 422 will be sleeved on the sliding part to seal the sliding part, the diameter of the exhaust hole is smaller than that of the exhaust pipe 421, the gas pressure in the lifting sealing cover 42 will be increased, the lifting sealing cover 42 will be driven downward to seal the sealing cover 41, and simultaneously when the lifting sealing cover 42 descends to the top of the collecting bracket 33, the lifting sealing cover 42 will overlap and collect the top of the bracket 33 more stably by the magnetic force adsorption between the stabilizing electromagnet 424 and the top of the collecting bracket 33;
based on the above, when the gas is stopped from being fed into the enclosure 41, the lifting spring posts 423 drive the lifting enclosure 42 to move upward, so that the enclosure 41 is opened, and the ore at the top of the conveyor belt 32 is conveniently fed.
Specifically, as shown in fig. 7, a plurality of spreading bars 45 are provided, and the plurality of spreading bars 45 are rotatably distributed on the outer surface of the spreading support 44, an elliptical hyperboloid is provided on the inner side of the conveying roller 31, a transmission gear 46 engaged with the driving gear 441 is fixedly connected on the outer side of the conveying roller 31, and an attaching anti-slip layer attached to the conveying belt 32 is provided on the outer surface of the conveying roller 31.
Through the above technical scheme, when the conveyor belt 32 drives the conveyor belt 32 to move through the servo motor 2, the conveyor roller 31 attached to the bottom of the conveyor belt is driven to rotate, the lower section roller 311 and the top section roller 313 in the conveyor roller 31 are arranged in the horizontal direction, and the middle section roller 312 is arranged in an inclined state, so that the top section roller 313 is driven to rotate in the moving process of the conveyor belt 32, the transmission gear 46 meshed in the sealing cover 442 is driven to start rotating, the driving gear 441 is driven to start rotating, the spreading bracket 44 is driven to start rotating, and the coal mine on the conveyor belt 32 is spread evenly.
According to the invention, the ore mined by the coal mining machine is collected through the collecting mechanism 3, crushed, dispersed and conveyed to the top of the coal mining conveyor belt 1, then the gas converted from the adsorption state to the free state is absorbed through the release absorbing mechanism 4, meanwhile, the collecting arm 34 is cooled and cleaned through the collecting cylinder 35, after absorbing for a period of time, the lifting sealing cover 42 is opened, the servo motor 2 is started to convey the ore, and thus the gas absorbing and conveying operation of the mined ore in the conveying process is completed.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (9)
1. The safety protection device for underground operation comprises a coal mining conveyor belt (1), and is characterized in that a servo motor (2) is arranged in the coal mining conveyor belt (1), a collecting mechanism (3) is arranged at the top of the coal mining conveyor belt (1), and a release absorption mechanism (4) is arranged at the top of the coal mining conveyor belt (1);
the collecting mechanism (3) comprises a conveying roller (31) which is rotationally connected to the inside of the coal mining conveying belt (1), a conveying belt (32) is connected to the top of the conveying roller (31) in a transmission way, a driving strip (321) is fixedly connected to the top of the conveying belt (32), a collecting bracket (33) is arranged on the side face of the coal mining conveying belt (1), a driving motor is fixedly connected to the front end of the collecting bracket (33), a collecting arm (34) is rotationally connected to the inner wall of the collecting bracket (33), a collecting barrel (35) is clamped to the outer side of the coal mining conveying belt (1), a cutting tooth (361) is inserted to the outer surface of the collecting barrel (35), a bonding ring (351) is fixedly connected to the inner wall of the collecting barrel (35), a bonding groove (352) is formed in the inner top wall of the collecting barrel (35), a cooling spray pipe (353) is fixedly communicated with the top of the collecting barrel (353), the cooling spray pipe (353) is electrically connected with an electromagnetic valve, the inner wall of the collecting barrel (35) is fixedly connected to the bottom of the sliding arc-shaped sliding arm (34) in a sliding manner, the bottom of the sliding arc-shaped sliding arm (354) is connected to the bottom of the sliding arc-shaped sliding arm (354), the electromagnetic valve is electrically connected with the touch sliding block (354);
the release absorption mechanism (4) comprises a sealing cover (41) which is connected to the top of the coal mining conveyor belt (1) in a clamping manner, the bottom of the sealing cover (41) is fixedly connected with the top of the collecting cylinder (35), the inner wall of the sealing cover (41) is connected with a lifting sealing cover (42) in a sliding manner, the top of the lifting sealing cover (42) is fixedly communicated with an exhaust pipe (421), the outer surface of the exhaust pipe (421) is sleeved with a lifting sealing sleeve (422), the inner wall of the sealing cover (41) is fixedly communicated with an exhaust pipe (43), the inner top wall of the sealing cover (41) is rotationally connected with a spreading bracket (44), the outer surface of the spreading bracket (44) is fixedly connected with a spreading rod (45), the outer surface of the spreading bracket (44) is fixedly connected with a driving gear (441) which is in transmission connection with the conveying roller (31), and the outer side of the driving gear (441) is provided with a sealing cover (442).
2. The safety device for downhole operation according to claim 1, wherein a collecting extrusion claw (341) is fixedly connected to the outer side of the collecting arm (34), the outer surface of the collecting extrusion claw (341) is slidably connected to the inner wall of the collecting barrel (35), and the collecting extrusion claw (341) and the dispersing fixed arc rods (36) are staggered.
3. The safety device for downhole operation according to claim 1, wherein the inner wall of the collecting cylinder (35) is provided with a cleaning cavity, the cooling spray pipe (353) is arranged on the inner top wall of the cleaning cavity, cooling spray heads (3531) are fixedly communicated with the inner side of the cooling spray pipe (353), and the cooling spray heads (3531) are symmetrically distributed about the collecting arm (34).
4. The safety device for downhole operation according to claim 1, wherein the inner side of the touching slide block (354) is fixedly connected with a lifting inclined rod (355), the outer surface of the lifting inclined rod (355) is provided with a rotary rack (356), and the rotary rack (356) is meshed with a cleaning rod (357).
5. The safety device for downhole operation according to claim 4, wherein the inner side of the cleaning rod (357) is slidably connected to the outer side of the collecting arm (34), the inner side of the cleaning rod (357) is fixedly connected with a scraping groove, and the inner wall of the scraping groove is provided with a scraping wear-resistant layer.
6. The safety device for underground operation according to claim 1, wherein the top of the lifting sealing cover (42) is fixedly connected with a lifting spring column (423), the inner wall of the lifting sealing cover (42) is provided with an exhaust hole, the exhaust hole is arranged on the inner side of the lifting sealing cover (42), the exhaust hole is fixedly communicated with the exhaust pipe (421), the bottom of the lifting sealing cover (42) is fixedly connected with a stabilizing electromagnet (424), and the bottom of the stabilizing electromagnet (424) is magnetically connected with the top of the coal mining conveyor belt (1).
7. The safety device for downhole operation according to claim 1, wherein the exhaust pipe (421) is internally provided with a gas with a large mass, the gas with a large mass is carbon dioxide, the exhaust pipe (43) is arranged at the top of the sealing cover (41), and the exhaust pipe (43) and the exhaust pipe (421) are synchronously performed.
8. A safety device for downhole operation according to claim 1, wherein the inner wall of the enclosure (41) is fixedly connected with an exhaust branch pipe (411), and a jet head (412) is arranged on the inner side of the enclosure (41).
9. The safety device for downhole operation according to claim 1, wherein a plurality of spreading bars (45) are provided, and a plurality of spreading bars (45) are rotatably distributed on the outer surface of a spreading bracket (44), an elliptical hyperboloid is provided on the inner side of the transport roller (31), a transmission gear (46) meshed with a driving gear (441) is fixedly connected on the outer side of the transport roller (31), and an attaching anti-slip layer is provided on the outer surface of the transport roller (31) and a conveyer belt (32).
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