CN113882890A - Long-distance local ventilation device for rapid tunneling of mine working face ultra-long-distance coal roadway - Google Patents
Long-distance local ventilation device for rapid tunneling of mine working face ultra-long-distance coal roadway Download PDFInfo
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- CN113882890A CN113882890A CN202111159761.8A CN202111159761A CN113882890A CN 113882890 A CN113882890 A CN 113882890A CN 202111159761 A CN202111159761 A CN 202111159761A CN 113882890 A CN113882890 A CN 113882890A
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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
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
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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
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/04—Air ducts
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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
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
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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
- E21F17/02—Suspension devices for tubes or the like, e.g. for ventilating ducts
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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
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/20—Drawing-off or depositing dust
Abstract
A long-distance local ventilation device for quickly tunneling a coal roadway on a mine working face at an ultra-long distance belongs to the technical field of mining engineering, and aims to solve the problem that air is exhausted from a single air port of an air pipe, the air pipe cannot supply air to other required unoperated places in a long-distance mine; the air pipes away from the local high air pressure pipe section of the mine have the problems of air leakage and broken pipeline; the air guide pipes and the iron trident air cylinders are alternately spliced and merged into the pipeline, the air supply can be carried out on the section of a long-distance mine needing air supply by utilizing the air outlet pipe on the side wall of the iron trident air cylinder, the air guide pipes with proper proportion length of the flexible air cylinder and the decompression air cylinder are spliced into the pipeline, the air flow blown by the air blower enters the decompression air cylinder with larger inner diameter from the flexible air cylinder, the air pressure born by the cylinder body in the high-pressure area is reduced by utilizing the decompression air cylinder with larger diameter, and the decompression inner pipe and the elastic buffer part are used for isolation and buffering; the invention can fully meet the local air supply requirement of long-distance mines and effectively prevent the air guide pipe of the high air pressure section from being broken.
Description
Technical Field
The invention relates to the technical field of mining engineering, in particular to a long-distance local ventilation device for quickly tunneling a coal roadway with a mine working face at an ultra-long distance.
Background
A mine is a generic term for roadways, chambers, equipment, ground buildings and structures that form the production system of an underground coal mine. Inclined shafts, vertical shafts, adits and the like in underground mining of mines are also sometimes referred to as mines. The determination of the field range size, the mine production capacity and the service life of each mine is one of the key problems which must be solved in the mine self-design. The production system of the mine comprises a coal conveying system, a ventilation system, a material conveying system, a drainage system and the like, wherein the ventilation system is an indispensable system in the production operation of the mine, and the ventilation system is required to control the air inlet of the mine due to high humidity and high temperature.
At present, the mine ventilation device generally extends into a mine directly by using a long pipeline, and external air is transmitted into the mine by a ventilation fan. However, the existing mine ventilation devices generally supply air only for the operation place, the air outlet of the long air pipe is aligned to the operation face of a worker, the ventilation pipe is spliced and extended to the operation place along with the continuous tunneling and extension of the mine, the air pipe cannot supply air to other required non-operation places in the long-distance mine, and the comprehensive ventilation use requirements of the mine cannot be well met; moreover, the splicing of air pipes of the existing mine ventilation device is very long, the long air pipe means that a high air pressure pipe section exists in a local section of a mine, the existing mine ventilation device does not take protective measures for the pipe section, the air pipe at the high air pressure position has the phenomena of air leakage and pipeline breaking after the use time is long, and the use requirement of air quantity during mine tunneling is seriously influenced.
Therefore, the long-distance local ventilation device for the quick tunneling of the coal roadway on the working face of the mine is provided.
Disclosure of Invention
The invention aims to provide a long-distance local ventilation device for quickly tunneling a coal roadway on a mine working face, and aims to solve the problems that the existing mine ventilation device supplies air to a worker working point through a single air port, an air pipe cannot supply air to other required non-working places in a long-distance mine, and the existing mine ventilation device does not take protective measures on a high air pressure pipe section stored in a local section of the mine, so that the air pipe at a high air pressure position has air leakage and pipeline breakage after long-time use.
In order to achieve the purpose, the invention provides the following technical scheme: the long-distance local ventilation device for the rapid tunneling of the coal roadway with the ultra-long distance of the mine working face comprises a mounting seat and a protective top plate arranged on the upper part of the side wall of the mounting seat, supporting rods are arranged on two sides of the bottom of the non-fixed end of the protective top plate, the lower ends of the supporting rods are fixedly connected to the upper end of the bottom plate of the mounting seat, two groups of identical air blowers are arranged on the side wall of a vertical plate of the mounting seat in parallel, variable frequency controllers are arranged on the side wall of each air blower, air outlet cylinders of the air blowers extend to the other side of the side wall of the vertical plate of the mounting seat in a penetrating manner, the tail ends of the air outlet cylinders are connected with two air inlet ends of a three-way air collecting pipe, the air outlet end of the three-way air collecting pipe is fixedly connected with one end of an air guide pipe through a sealing flange, the other end of the air guide pipe is connected with an iron three-fork air inlet cylinder through a sealing flange, a purification component is arranged between the inner walls of the inlet ends of the air guide pipe, and a dust outlet channel is arranged at the bottom of the air guide pipe corresponding to the purification component;
the air guide pipe comprises a flexible air duct and a pressure reduction air duct arranged at one end of the flexible air duct, the flexible air duct is an air inlet end of the air guide pipe, a pressure reduction inner pipe is arranged between the inner walls of the pressure reduction air duct through a fixing rod, and communicating holes are evenly formed in the side wall of the pressure reduction inner pipe.
Further, the coaxial suspension of decompression inner tube is in the decompression dryer, and the internal diameter of decompression inner tube and decompression dryer all is greater than the internal diameter of flexible dryer, and the decompression inner tube is connected with flexible dryer port outer wall, evenly is provided with elastic buffer on the decompression dryer inner wall in the dead lever outside, and elastic buffer is hemispherical structure, and its inside is the cavity setting.
Furthermore, a fixed sleeve ring is arranged on the outer wall of the air guide pipe, the bottom of the fixed sleeve ring is movably connected with a supporting sleeve through a connecting piece, a movable screw rod is sleeved on the bottom of the supporting sleeve in a threaded mode, the bottom of the movable screw rod is movably sleeved in an inner cavity of the fixed sleeve, the bottom end of the fixed sleeve is movably connected with a fixed disk through a connecting piece, limiting threaded sleeves are respectively arranged at the edges of two sides of the upper end of the fixed disk, a T-shaped drill rod is arranged in the inner cavity of each limiting threaded sleeve, and the T-shaped drill rod is used for fixing the fixed disk on the ground of a spiral drill in a mine.
Further, be provided with V type card strip on the guide duct bottom outer wall of the adjacent department of fixed lantern ring, V type card strip sets up the same two sets ofly, and sets up in guide duct bottom both sides about the axis symmetry of guide duct, and the pointed end of V type card strip sets up relatively, and V type card strip is used for the guide duct to dismantle when block support sleeve accomodate.
Further, the purification subassembly is including setting up the fixed outer loop between the inner wall of air guide pipe, fixed outer loop is provided with fixed horizontal pole between being close to the port department inner wall of tee bend collection tuber pipe one side, be provided with the dirt filtrating screen between the lateral wall of fixed horizontal pole and fixed outer loop, and fixedly connected with T type pole on the middle part department outer wall of fixed horizontal pole, evenly be provided with the elasticity stay cord on the outer wall that T type pole is close to dirt filtrating screen one side, the terminal fixedly connected with of elasticity stay cord vibrates the ball, it recruits the dryer to be provided with on the outer wall of the elasticity stay cord of the adjacent department of ball to vibrate, it is the infundibulate structure to recruit the dryer.
Furthermore, an arc-shaped ash receiving plate is arranged on the outer wall of the port at the lower part of the fixed outer ring and is arranged corresponding to the T-shaped rod, the bottom of the arc-shaped ash receiving plate is flush with the bottom of the fixed outer ring, and ash leakage holes are uniformly formed in the bottom of the arc-shaped ash receiving plate corresponding to the T-shaped rod.
Furthermore, a dust removal filter plate is arranged between the inner walls of the fixed outer ring far away from one end of the dust filter screen, L-shaped baffles are evenly arranged between the inner walls of the two sides of the fixed outer ring at the adjacent positions of the dust removal filter plate through connecting rods, the L-shaped baffles are obliquely and parallelly suspended between the dust filter screen and the dust removal filter screen, and dust collection triangular plates are obliquely arranged on the outer wall of one side, close to the dust removal filter plate, of the L-shaped baffles in a downward inclined mode.
Furthermore, the bottom of the fixed outer ring opposite to the L-shaped baffle is provided with a dust outlet, the dust outlet and the dust leakage hole are arranged corresponding to a dust outlet channel at the bottom of the air guide pipe, an air cavity is uniformly formed in the outer wall of the vibration ball close to one side of the vertical rod of the T-shaped rod, and the air cavity is perpendicular to the elastic pull rope.
Further, there is the activity through hinge swing joint on the both sides inner wall of play dirt passageway top port department and turns over the board, be provided with the limiting plate on the both sides outer wall of play dirt passageway respectively, the limiting plate top is run through and is provided with T type carriage release lever, the winding is provided with buffer spring on the T type carriage release lever outer wall of limiting plate upper end, buffer spring top fixed connection is in the bottom of T type carriage release lever metal roof, and be provided with the electro-magnet on the play dirt passageway lateral wall of T type carriage release lever metal roof upper end, T type carriage release lever lower extreme extends to the limiting plate bottom, its terminal fixed connection is in the bottom plate upper end at sealed end cap both ends, sealed end cap is used for the closing cap to go out dirt passageway bottom port, sealed end cap upper end both sides correspond the activity and turn over board department and be provided with the ejector pin.
Furthermore, the electromagnet and the air blower are connected in series with a power supply circuit, when the electromagnet adsorbs and adheres to the T-shaped moving rod metal top plate, the buffer spring is in a stretching state, the sealing plug covers the outer wall of the bottom port of the dust outlet channel, and the ejector rod pushes the movable end of the movable turning plate to be horizontally buckled with each other.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides a long-distance local ventilation device for quickly tunneling a coal roadway with a mine working face in an ultra-long distance, wherein the air outlet end of a three-way air collecting pipe is fixedly connected with one end of an air guide pipe through a sealing flange, the other end of the air guide pipe is connected with an iron three-way air duct through the sealing flange, one end of a flexible air duct of the air guide pipe is provided with a pressure reducing air duct, the flexible air duct is the air inlet end of the air guide pipe, a pressure reducing inner pipe is arranged between the inner walls of the pressure reducing air ducts through a fixing rod, the side wall of the pressure reducing inner pipe is uniformly provided with communicating holes, the pressure reducing inner pipe is coaxially suspended in the pressure reducing air duct, the inner diameters of the pressure reducing inner pipe and the pressure reducing air duct are both larger than the inner diameter of the flexible air duct, the pressure reducing inner pipe is connected with the outer wall of a port of the flexible air duct, the inner wall of the pressure reducing air duct outside the fixing rod is uniformly provided with an elastic buffer part which is of a hemispherical structure, the inner part of which is hollow, and the three-way air collecting pipe is connected with an air outlet duct of an air blower, the air guide pipe and the iron trident wind barrel are sequentially connected at the air outlet end of the three-way air collecting pipe by utilizing a sealing flange, the air guide pipe with proper length and the iron trident wind barrel are selected for splicing, the air outlet pipe on the side wall of the iron trident wind barrel can be used for supplying air to the section of a long distance mine needing air supply, the air supply use requirement is met, meanwhile, when the air guide pipe has a high air pressure section due to mine trend, the flexible wind barrel and the air guide pipe with proper proportion of the pressure reducing wind barrel are spliced into a pipeline, the pressure reducing wind barrel is arranged in the high air pressure section, air flow blown by an air blower enters the pressure reducing wind barrel with larger inner diameter from the flexible wind barrel, the air pressure born by the barrel is reduced by utilizing the pressure reducing wind barrel with larger diameter, meanwhile, the pressure reducing inner pipe arranged between the inner walls of the pressure reducing wind barrel firstly bears the air pressure impact, and then impacts an elastic buffer on the inner wall of the pressure reducing wind barrel from a communication hole on the side wall of the pressure reducing inner pipe, the protection to the barrel is further strengthened to the deformation that utilizes decompression inner tube buffering and elastic buffer spare, avoids the problem that the body that the guide duct caused because of the wind pressure is too big leaks in the high wind pressure section.
2. The invention provides a long-distance local ventilation device for quickly tunneling a coal roadway with a super-long distance on a mine working face, wherein a fixed cross rod is arranged between inner walls at a port on one side of a fixed outer ring close to a three-way air collecting pipe, a dust filter screen is arranged between the fixed cross rod and the side wall of the fixed outer ring, a T-shaped rod is fixedly connected to the outer wall at the middle part of the fixed cross rod, elastic pull ropes are uniformly arranged on the outer wall of one side of the T-shaped rod close to the dust filter screen, a vibration ball is fixedly connected to the tail end of the elastic pull rope, an air attracting cylinder is arranged on the outer wall of the elastic pull rope adjacent to the vibration ball, an arc-shaped dust collecting plate is arranged on the outer wall at the port on the lower part of the fixed outer ring, dust leaking holes are uniformly arranged at the bottom of the arc-shaped dust collecting plate corresponding to the T-shaped rod, a dust removing filter plate is arranged between the inner walls at one end of the fixed outer ring far away from the dust collecting screen, and L-shaped baffles are uniformly arranged between the inner walls at two sides of the fixed outer ring adjacent to the dust removing filter plate through connecting rods, the L-shaped baffle plate is obliquely suspended between the dust filter screen and the dust removing filter plate in parallel, a dust-cutting triangular plate is obliquely and downwardly arranged on the outer wall of one side of the L-shaped baffle plate close to the dust removing filter plate, after the air comes from the inlet end of the air guide pipe, the air flow blows an air cavity on the side wall of the vibration ball to enable the air cavity to deflect upwards under the fixation of the elastic pull rope, then the air-entraining cylinder on the outer wall of the elastic pull rope is blown by the wind force to stretch the elastic pull rope to impact and vibrate the dust filter screen on the inner wall of the fixed outer ring port, the dust in the air flow in the air guide pipe is shaken down into the arc-shaped dust receiving plate after being filtered by the dust filter screen, the automatic cleaning of the dust filter screen is realized to avoid dust adhesion, meanwhile, the finer dust which can not be intercepted by the dust filter screen impacts the L-shaped baffle plate, is intercepted by the dust-cutting triangular plate on the outer wall after being buffered by the L-shaped baffle plate, is accumulated in a hollow groove between the adjacent dust-cutting triangular plates, and part of the dust-removing filter plate on the inner wall of the other end of the fixed outer ring slides down along with the dust removing filter plate in an isolation way, after the air supply is stopped, the dust intercepted by the dust intercepting triangle plate and the dust removing filter plate automatically slides down, and the dust leaked from the dust outlet at the bottom of the fixed outer ring and the dust leaking hole at the bottom of the arc-shaped dust receiving plate enter the dust outlet channel together to be discharged.
3. The invention provides a long-distance local ventilation device for quickly tunneling a coal roadway with a mine working face over a long distance, wherein movable turning plates are movably connected on the inner walls on two sides at the top port of a dust outlet channel through hinges, limiting plates are respectively arranged on the outer walls on two sides of the dust outlet channel, a T-shaped moving rod is arranged at the top of each limiting plate in a penetrating manner, a buffer spring is wound on the outer wall of the T-shaped moving rod at the upper end of each limiting plate, the top of each buffer spring is fixedly connected to the bottom of a metal top plate of the T-shaped moving rod, an electromagnet is arranged on the side wall of the dust outlet channel at the upper end of the metal top plate of the T-shaped moving rod, the lower end of each T-shaped moving rod extends to the bottom of each limiting plate, the tail end of each T-shaped moving rod is fixedly connected to the upper ends of bottom plates at two ends of a sealing plug, ejector rods are arranged at two sides at the upper end of the sealing plug corresponding to the movable turning plates, an electromagnet circuit is communicated when an air blower starts to supply air so that the blower movably adsorbs the T-shaped moving rods to move upwards, when the T-shaped moving rod moves upwards, the buffer spring is stretched and the sealing plug is lifted upwards to be plugged on the outer wall of the bottom port of the dust outlet channel to seal the air channel, the sealing plug is lifted to drive the ejector rod to push the movable end of the movable turning plate to be horizontally buckled with each other, the dust outlet channel is further sealed after the movable turning plate is closed, the electromagnet is powered off after air supply is stopped, the magnetic force is lost, the T-shaped moving rod is released, the T-shaped moving rod resets under the action of gravity and the buffer spring, the T-shaped moving rod moves downwards to drive the sealing plug to move downwards to expose the bottom port of the dust outlet channel, the ejector rod loses support for the movable turning plate after the sealing plug moves downwards, the movable end of the movable turning plate deflects downwards to enable dust at the top of the movable turning plate to slide downwards and automatically discharge from the bottom port of the dust outlet channel, and the use is convenient.
Drawings
FIG. 1 is a schematic view of the overall structure of a long-distance local ventilation device for the rapid tunneling of a coal roadway at a working face of a mine;
FIG. 2 is a partial cross-sectional view of an air guide pipe of the long-distance local ventilation device for the rapid tunneling of the coal roadway at the working face of the mine;
fig. 3 is an enlarged structural schematic diagram of a part a in fig. 1 of the long-distance local ventilation device for the rapid tunneling of the ultra-long-distance coal roadway of the mine working face according to the invention;
FIG. 4 is a schematic view of the installation structure of the purification component of the long-distance local ventilation device for the rapid tunneling of the coal roadway with the ultra-long distance on the mine working face according to the present invention;
FIG. 5 is a schematic structural diagram of a purification assembly of the long-distance local ventilation device for rapid tunneling of the coal roadway at the working face of the mine;
FIG. 6 is a cross-sectional view of a fixed outer ring of the long-distance local ventilation device for rapid tunneling of a coal roadway at a working face of a mine according to the present invention;
fig. 7 is an enlarged structural schematic diagram of a long-distance local ventilation device for the rapid tunneling of the ultra-long-distance coal roadway on the mine working face in fig. 5 at the position B;
FIG. 8 is a sectional view of a vibrating ball of the long-distance local ventilation device for rapid tunneling of a coal roadway at a working face of a mine according to the present invention;
fig. 9 is a schematic structural diagram of a dust outlet passage of the long-distance local ventilation device for the rapid tunneling of the coal roadway with the ultra-long distance on the mine working face.
In the figure: 1. a mounting seat; 2. a protective roof; 3. a support bar; 4. a blower; 5. a variable frequency controller; 6. a three-way air collecting pipe; 7. an air guide pipe; 71. a flexible wind tube; 72. a pressure reducing air duct; 73. fixing the rod; 74. a pressure reducing inner tube; 75. a communicating hole; 76. an elastic buffer member; 8. an iron three-fork air duct; 9. a purification assembly; 91. fixing the outer ring; 92. fixing the cross bar; 93. a dust filter screen; 94. a T-shaped rod; 95. an elastic pull rope; 96. vibrating the ball; 961. a wind cavity; 97. a poster cone; 98. an arc-shaped ash receiving plate; 99. ash leakage holes; 910. a dust removal filter plate; 911. an L-shaped baffle plate; 912. a dust-collecting triangle; 913. a dust outlet; 10. a dust outlet channel; 11. a fixed collar; 12. a support sleeve; 13. moving the screw; 14. fixing the sleeve; 15. fixing the disc; 16. a limiting screw sleeve; 17. a T-shaped drill rod; 18. a V-shaped clamping strip; 19. a movable turning plate; 20. a limiting plate; 21. a T-shaped movable rod; 22. a buffer spring; 23. an electromagnet; 24. sealing the plug; 25. and a push rod.
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.
In order to solve the problems that the air pipe in the long-distance mine cannot supply air to other needed non-operation places when the air pipe is exhausted from a single air port, and the air pipe in the long-distance mine local high air pressure pipe section has air leakage and broken pipeline, please refer to fig. 1, fig. 2 and fig. 4, the following preferred technical scheme is provided:
the long-distance local ventilation device for the rapid tunneling of the coal roadway with the ultra-long distance of the mine working face comprises a mounting seat 1 and a protective top plate 2 arranged on the upper part of the side wall of the mounting seat 1, wherein two sides of the bottom of the non-fixed end of the protective top plate 2 are provided with support rods 3, the lower ends of the support rods 3 are fixedly connected to the upper end of the bottom plate of the mounting seat 1, two groups of identical air blowers 4 are arranged on the side wall of the vertical plate of the mounting seat 1 in parallel, the side wall of each air blower 4 is provided with a variable frequency controller 5, and air outlet cylinders of the air blowers 4 extend to the other side of the side wall of the vertical plate of the mounting seat 1, the tail end of the three-way air collecting pipe is connected with two air inlet ends of the three-way air collecting pipe 6, the air outlet end of the three-way air collecting pipe 6 is fixedly connected with one end of an air guide pipe 7 through a sealing flange, the other end of the air guide pipe 7 is connected with an iron three-fork air duct 8 through the sealing flange, a purification assembly 9 is arranged between the inner walls of the inlet ends of the air guide pipe 7, and a dust outlet channel 10 is arranged at the bottom of the air guide pipe 7 corresponding to the purification assembly 9.
The air duct 7 comprises a flexible air duct 71 and a pressure reducing air duct 72 arranged at one end of the flexible air duct 71, the flexible air duct 71 is an air inlet end of the air duct 7, a pressure reducing inner tube 74 is arranged between the inner walls of the pressure reducing air duct 72 through a fixing rod 73, communication holes 75 are evenly formed in the side wall of the pressure reducing inner tube 74, the pressure reducing inner tube 74 is coaxially suspended in the pressure reducing air duct 72, the inner diameters of the pressure reducing inner tube 74 and the pressure reducing air duct 72 are larger than the inner diameter of the flexible air duct 71, the pressure reducing inner tube 74 is connected with the outer wall of the port of the flexible air duct 71, an elastic buffer 76 is evenly arranged on the inner wall of the pressure reducing air duct 72 outside the fixing rod 73, the elastic buffer 76 is of a hemispherical structure, and the interior of the elastic buffer is hollow.
Specifically, after the three-way air collecting pipe 6 is connected with an air outlet barrel of the air blower 4, a sealing flange is utilized to sequentially connect an air guide pipe 7 and an iron three-way air duct 8 at the air outlet end of the three-way air collecting pipe 6, the air guide pipe 7 with proper length is selected to be spliced with the iron three-way air duct 8, the air supply can be carried out on a section of a long distance mine needing air supply by utilizing the air outlet pipe on the side wall of the iron three-way air duct 8, the air supply use requirement is met, meanwhile, when the air guide pipe 7 has a high air pressure section due to mine trend, the air guide pipe 7 with proper length is selected to be spliced into a pipeline by selecting the flexible air duct 71 and the pressure reducing air duct 72 according to the proper proportion, the pressure reducing air duct 72 is arranged in the high air pressure section, air flow blown by the air blower 4 enters the pressure reducing air duct 72 with larger inner diameter from the flexible air duct 71, the air pressure born by utilizing the pressure reducing air duct 72 with larger diameter is reduced, and meanwhile, the pressure reducing inner pipe 74 arranged between the inner walls of the pressure reducing air duct 72 firstly bears impact, then, the elastic buffer 76 on the inner wall of the pressure reducing air duct 72 is impacted from the communication hole 75 on the side wall of the pressure reducing inner tube 74, the protection of the cylinder body is further enhanced by the buffer of the pressure reducing inner tube 74 and the deformation of the elastic buffer 76, and the problem of pipe body fracture and leakage caused by overlarge air pressure of the air guide pipe 7 in a high air pressure section is avoided.
In order to enhance the installation stability of the air duct, as shown in fig. 1 and 3, a fixed sleeve ring 11 is arranged on the outer wall of the air duct 7, the bottom of the fixed sleeve ring 11 is movably connected with a support sleeve 12 through a connecting piece, a movable screw 13 is sleeved on the bottom of the support sleeve 12 in a threaded manner, the bottom of the movable screw 13 is movably sleeved in an inner cavity of the fixed sleeve 14, the bottom of the fixed sleeve 14 is movably connected with a fixed disk 15 through a connecting piece, two side edges of the upper end of the fixed disk 15 are respectively provided with a limit screw sleeve 16, and an inner cavity of the limit screw sleeve 16 is provided with a T-shaped drill rod 17 which is used for fixing the fixed disk 15 on a mine ground by an auger.
The V-shaped clamping strips 18 are arranged on the outer wall of the bottom of the air guide pipe 7 at the adjacent position of the fixed lantern ring 11, the V-shaped clamping strips 18 are arranged in two same groups, the V-shaped clamping strips are symmetrically arranged on two sides of the bottom of the air guide pipe 7 relative to the axis of the air guide pipe 7, the pointed ends of the V-shaped clamping strips 18 are oppositely arranged, and the V-shaped clamping strips 18 are used for clamping the support sleeve 12 to store when the air guide pipe 7 is detached.
Specifically, the supporting sleeve 12 is pulled out from the V-shaped clamping strips 18, the bottom of the supporting sleeve is vertical downwards, the moving screw 13 is rotated to be separated from the supporting sleeve 12 and extended, the length between the moving screw 13 and the supporting sleeve 12 is adjusted to enable the air guide pipe 7 to be approximately flush with the three-way air collecting pipe 6, the inclination of a fixed disc 15 at the bottom of the fixed sleeve 14 is adjusted according to the flatness of the mine ground to enable the fixed disc to be attached to the mine ground, then T-shaped drill rods 17 on two sides of the upper end of the fixed disc 15 are rotated to drive the fixed disc 15 to drill downwards along a limiting screw sleeve 16 to fix the fixed disc 15, and the fixed sleeve 11 at the top of the supporting sleeve 12 is matched to maintain the stability of the air guide pipe 7.
In order to solve the problem that the existing ventilation device purifies air by using a filter screen, the filter screen is long in service time and attached with a large amount of dust and needs to be cleaned regularly, please refer to fig. 4-8, and the following preferred technical scheme is provided:
An arc-shaped ash receiving plate 98 is arranged on the outer wall of the port at the lower part of the fixed outer ring 91, the arc-shaped ash receiving plate 98 is arranged corresponding to the T-shaped rod 94, the bottom of the arc-shaped ash receiving plate 98 is flush with the bottom of the fixed outer ring 91, and ash leakage holes 99 are uniformly formed in the bottom of the arc-shaped ash receiving plate 98 corresponding to the T-shaped rod 94; a dust removal filter plate 910 is arranged between the inner walls of the ends, far away from the dust filter screen 93, of the fixed outer rings 91, L-shaped baffles 911 are uniformly arranged between the inner walls of the two sides of the fixed outer rings 91 at the adjacent positions of the dust removal filter plates 910 through connecting rods, the L-shaped baffles 911 are obliquely and parallelly suspended between the dust filter screen 93 and the dust removal filter plates 910, and dust collection triangular plates 912 are obliquely and downwardly arranged on the outer walls of the L-shaped baffles 911 on one sides close to the dust removal filter plates 910.
The bottom of the fixed outer ring 91 opposite to the L-shaped baffle 911 is provided with a dust outlet 913, the dust outlet 913 and the dust leakage hole 99 are both arranged corresponding to the dust outlet channel 10 at the bottom of the air guide pipe 7, and the outer wall of the vibration ball 96 close to one side of the vertical rod of the T-shaped rod 94 is evenly provided with an air cavity 961, and the air cavity 961 is perpendicular to the elastic pull rope 95.
Specifically, after wind comes from the inlet end of the air duct 7, the airflow blows the wind cavity 961 on the side wall of the oscillating ball 96 to make it deflect upwards under the fixation of the elastic pull rope 95, then the wind cylinder 97 on the outer wall of the elastic pull rope 95 is blown by wind force to stretch the elastic pull rope 95, impact oscillation is performed on the dust filter screen 93 on the inner wall of the port of the fixed outer ring 91, dust in the airflow in the air duct 7 is filtered by the dust filter screen 93 and then shaken off into the arc-shaped dust collecting plate 98, so that automatic cleaning of the dust filter screen 93 is realized to avoid dust adhesion, meanwhile, finer dust which cannot be intercepted by the dust filter screen 93 impacts the L-shaped baffle 911, after being buffered by the L-shaped baffle 911, is intercepted and decelerated by the dust intercepting triangle 912 on the outer wall, accumulated in a hollow groove between the adjacent dust intercepting triangle plates 912, part of the dust is isolated and slides down along with the dust removing filter plate 910 on the inner wall of the other end of the fixed outer ring 91, and dust intercepting triangle 912 and dust removing filter plate automatically slides off after wind supply is stopped, dust leaking from the dust outlet 913 at the bottom of the fixed outer ring 91 and the dust leakage holes 99 at the bottom of the arc-shaped dust receiving plate 98 enters the dust outlet passage 10 to be discharged.
In order to realize the problem of dust discharge after the automatic cleaning of the cleaning component 9, as shown in fig. 4 and 9, the inner walls at the two sides of the top port of the dust outlet channel 10 are movably connected with movable turning plates 19 through hinges, the outer walls at the two sides of the dust outlet channel 10 are respectively provided with a limiting plate 20, the top of the limiting plate 20 is provided with a T-shaped moving rod 21 in a penetrating way, the outer wall of the T-shaped moving rod 21 at the upper end of the limiting plate 20 is wound with a buffer spring 22, the top of the buffer spring 22 is fixedly connected to the bottom of the metal top plate of the T-shaped moving rod 21, an electromagnet 23 is arranged on the side wall of the dust outlet channel 10 at the upper end of the metal top plate of the T-shaped movable rod 21, the lower end of the T-shaped movable rod 21 extends to the bottom of the limit plate 20, the tail end of the sealing plug is fixedly connected to the upper ends of the bottom plates at the two ends of the sealing plug 24, the sealing plug 24 is used for sealing the bottom port of the dust outlet channel 10, and ejector rods 25 are arranged on the two sides of the upper end of the sealing plug 24 corresponding to the movable turning plates 19.
The electromagnet 23 and the blower 4 are connected in series to form a power supply circuit, when the electromagnet 23 adsorbs and adheres to the metal top plate of the T-shaped moving rod 21, the buffer spring 22 is in a stretching state, the sealing plug 24 is covered on the outer wall of the bottom port of the dust outlet channel 10, and the ejector rod 25 pushes the movable ends of the movable turning plates 19 to be horizontally buckled with each other.
Specifically, when the air blower 4 starts to supply air, the circuit of the electromagnet 23 is communicated, so that the movable magnetic force of the electromagnet adsorbs the T-shaped moving rod 21 to move upwards, when the T-shaped moving rod 21 moves upwards, the buffer spring 22 is stretched, the sealing plug 24 is lifted upwards, so that the sealing plug 24 is plugged on the outer wall of the bottom port of the dust outlet channel 10 to seal the air channel, after the sealing plug 24 is lifted up, the driving ejector rod 25 pushes the movable end of the movable turning plate 19 to be horizontally buckled with each other, the dust outlet channel 10 is further sealed after the movable turning plate 19 is closed, after the air supply is stopped, the electromagnet 23 is powered off, the magnetic force is lost, the T-shaped moving rod 21 is released, the T-shaped moving rod 21 is reset under the action of the gravity and the buffer spring 22, the T-shaped moving rod 21 moves downwards to drive the sealing plug 24 to move downwards to expose the bottom port of the dust outlet channel 10, after the sealing plug 24 moves downwards, the ejector rod 25 loses the support of the movable turning plate 19, the movable end of the movable turning plate 19 deflects downwards to enable the dust on the top to slide downwards to automatically discharge from the bottom port of the dust outlet channel 10, is convenient to use.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
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 (10)
1. Mine working face overlength distance coal road is tunnelling fast and is used long distance local ventilation unit, including mount pad (1) and set up in protection roof (2) on mount pad (1) lateral wall upper portion, protection roof (2) non-stiff end bottom both sides are provided with bracing piece (3), bracing piece (3) lower extreme fixed connection in mount pad (1) bottom plate upper end, its characterized in that: two groups of identical air blowers (4) are arranged on the side wall of a vertical plate of the mounting seat (1) in parallel, frequency conversion controllers (5) are arranged on the side walls of the air blowers (4), air outlet cylinders of the air blowers (4) extend to the other side of the side wall of the vertical plate of the mounting seat (1) in a penetrating manner, the tail ends of the air outlets are connected with two air inlet ends of a three-way air collecting pipe (6), the air outlet end of the three-way air collecting pipe (6) is fixedly connected with one end of an air guide pipe (7) through a sealing flange, the other end of the air guide pipe (7) is connected with an iron three-fork air inlet cylinder (8) through a sealing flange, a purification assembly (9) is arranged between the inner walls of the inlet end of the air guide pipe (7), and a dust outlet channel (10) is arranged at the bottom of the air guide pipe (7) corresponding to the purification assembly (9);
the air guide pipe (7) comprises a flexible air duct (71) and a pressure reduction air duct (72) arranged at one end of the flexible air duct (71), the flexible air duct (71) is an air inlet end of the air guide pipe (7), a pressure reduction inner pipe (74) is arranged between the inner walls of the pressure reduction air duct (72) through a fixing rod (73), and communicating holes (75) are uniformly formed in the side wall of the pressure reduction inner pipe (74).
2. The long-distance local ventilation device for the rapid tunneling of the mine working face over-long-distance coal roadway according to claim 1, characterized in that: the decompression inner tube (74) is coaxially suspended in the decompression air duct (72), the inner diameters of the decompression inner tube (74) and the decompression air duct (72) are larger than the inner diameter of the flexible air duct (71), the decompression inner tube (74) is connected with the outer wall of the port of the flexible air duct (71), an elastic buffer member (76) is uniformly arranged on the inner wall of the decompression air duct (72) on the outer side of the fixing rod (73), the elastic buffer member (76) is of a hemispherical structure, and the interior of the elastic buffer member is hollow.
3. The long-distance local ventilation device for the rapid tunneling of the mine working face over-long-distance coal roadway according to claim 2, characterized in that: be provided with fixed lantern ring (11) on the outer wall of guide duct (7), there is supporting sleeve (12) fixed lantern ring (11) bottom through connecting piece swing joint, the bottom screw thread of supporting sleeve (12) has cup jointed removal screw rod (13), the bottom activity of removing screw rod (13) is cup jointed in the inner chamber of fixed sleeve (14), there is fixed disk (15) fixed end of fixed sleeve (14) bottom through connecting piece swing joint, fixed disk (15) upper end both sides border department is provided with spacing swivel nut (16) respectively, the inner chamber of spacing swivel nut (16) is provided with T type drilling rod (17), it is used for the auger to carry out the mine ground and fixes fixed disk (15).
4. The long-distance local ventilation device for the rapid tunneling of the mine working face over-long-distance coal roadway according to claim 3, characterized in that: the V-shaped clamping strips (18) are arranged on the outer wall of the bottom of the air guide pipe (7) at the adjacent position of the fixed lantern ring (11), the V-shaped clamping strips (18) are arranged in two same groups and are symmetrically arranged on two sides of the bottom of the air guide pipe (7) relative to the axis of the air guide pipe (7), the pointed ends of the V-shaped clamping strips (18) are arranged oppositely, and the V-shaped clamping strips (18) are used for clamping the supporting sleeve (12) to store when the air guide pipe (7) is detached.
5. The long-distance local ventilation device for the rapid tunneling of the mine working face over-long-distance coal roadway according to claim 1, characterized in that: purification subassembly (9) are including setting up fixed outer loop (91) between guide duct (7) inner wall, be provided with fixed horizontal pole (92) between the port department inner wall that fixed outer loop (91) are close to tee bend collection tuber pipe (6) one side, be provided with between the lateral wall of fixed horizontal pole (92) and fixed outer loop (91) and strain dirt net (93), and fixedly connected with T type pole (94) on the middle part department outer wall of fixed horizontal pole (92), evenly be provided with on the outer wall that T type pole (94) are close to strain dirt net (93) one side elasticity stay cord (95), the terminal fixedly connected with of elasticity stay cord (95) vibrates ball (96), it is provided with on the outer wall of the elasticity stay cord (95) of vibration ball (96) adjacent department and calls dryer (97), it is the infundibulate structure to call dryer (97).
6. The long-distance local ventilation device for the rapid tunneling of the mine working face over-long-distance coal roadway according to claim 5, characterized in that: an arc-shaped ash receiving plate (98) is arranged on the outer wall of the port at the lower part of the fixed outer ring (91), the arc-shaped ash receiving plate (98) is arranged corresponding to the T-shaped rod (94), the bottom of the arc-shaped ash receiving plate (98) is parallel and level with the bottom of the fixed outer ring (91), and ash leakage holes (99) are uniformly formed in the position, corresponding to the T-shaped rod (94), of the bottom of the arc-shaped ash receiving plate (98).
7. The long-distance local ventilation device for the rapid tunneling of the mine working face over-long-distance coal roadway according to claim 6, characterized in that: a dust removal filter plate (910) is arranged between the inner walls of the ends, far away from the dust filter screen (93), of the fixed outer rings (91), L-shaped baffles (911) are evenly arranged between the inner walls of the two sides of the fixed outer rings (91) at the adjacent positions of the dust removal filter plates (910) through connecting rods, the L-shaped baffles (911) are obliquely and parallelly suspended between the dust filter screen (93) and the dust removal filter plates (910), and dust collection triangular plates (912) are obliquely and downwardly arranged on the outer wall, close to one side of the dust removal filter plate (910), of each L-shaped baffle (911).
8. The long-distance local ventilation device for the rapid tunneling of the mine working face over-long-distance coal roadway according to claim 7, characterized in that: the bottom of the fixed outer ring (91) opposite to the L-shaped baffle (911) is provided with a dust outlet (913), the dust outlet (913) and the dust leakage hole (99) are arranged corresponding to a dust outlet channel (10) at the bottom of the air guide pipe (7), an air cavity (961) is uniformly arranged on the outer wall of one side, close to the vertical rod of the T-shaped rod (94), of the vibration ball (96), and the air cavity (961) is perpendicular to the elastic pull rope (95).
9. The long-distance local ventilation device for the rapid tunneling of the mine working face over-long-distance coal roadway according to claim 1, characterized in that: the inner walls of two sides at the top port of the dust outlet channel (10) are movably connected with movable turning plates (19) through hinges, the outer walls of two sides of the dust outlet channel (10) are respectively provided with a limiting plate (20), the top of the limiting plate (20) is provided with a T-shaped moving rod (21) in a penetrating way, the outer wall of the T-shaped moving rod (21) at the upper end of the limiting plate (20) is wound with a buffer spring (22), the top of the buffer spring (22) is fixedly connected with the bottom of a metal top plate of the T-shaped moving rod (21), an electromagnet (23) is arranged on the side wall of the dust outlet channel (10) at the upper end of the metal top plate of the T-shaped movable rod (21), the lower end of the T-shaped movable rod (21) extends to the bottom of the limit plate (20), the tail end of the dust discharging channel is fixedly connected to the upper ends of the bottom plates at the two ends of the sealing plug (24), the sealing plug (24) is used for sealing and covering the bottom port of the dust discharging channel (10), and ejector rods (25) are arranged on the two sides of the upper end of the sealing plug (24) corresponding to the movable turning plates (19).
10. The long-distance local ventilation device for the rapid tunneling of the mine working face over-long-distance coal roadway according to claim 9, characterized in that: the electromagnet (23) and the air blower (4) are connected in series to form a power supply circuit, when the electromagnet (23) is attached to a metal top plate of the T-shaped moving rod (21) in an adsorbing mode, the buffer spring (22) is in a stretching state, the sealing plug (24) covers the outer wall of the bottom port of the dust outlet channel (10), and the ejector rod (25) pushes the movable ends of the movable turning plates (19) to be horizontally buckled with each other.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111159761.8A CN113882890B (en) | 2021-09-30 | 2021-09-30 | Long-distance local ventilation device for rapid tunneling of mine working face ultra-long-distance coal roadway |
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| CN202111159761.8A CN113882890B (en) | 2021-09-30 | 2021-09-30 | Long-distance local ventilation device for rapid tunneling of mine working face ultra-long-distance coal roadway |
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| CN113882890B (en) | 2023-01-10 |
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