An equipment for deep-hole conveying and energy-absorbing impact prevention materials in coal mines

Abstract

The present invention discloses a device for conveying energy-absorbing anti-bumping materials in deep holes of coal mines, belonging to the technical field of coal mine mining. The device includes a dust suction pipe, a shunt pipe, an overhead mechanism, a mixing injection pipe, a dust suction sleeve, a slag crushing device, a traveling device, a dust filtering device and an opening and closing mechanism. A shunt pipe is sleeved inside the dust suction pipe, and an overhead mechanism is arranged between the inner wall of the dust suction pipe and the outer wall of the shunt pipe. One end of the shunt pipe that does not penetrate the dust suction pipe is fixedly connected to the mixing injection pipe. A dust suction sleeve is fixedly connected to the dust suction pipe corresponding to the mixing injection pipe. The dust suction sleeve is arranged outside the mixing injection pipe, and a slag crushing device is arranged between the dust suction sleeve and the mixing injection pipe. The traveling device is arranged circumferentially on the dust suction sleeve. The end of the dust suction pipe is connected to the dust filtering device, so that the present invention can not only convey two kinds of polyurethane slurries simultaneously, effectively mix the two kinds of slurries, but also effectively clean up the scattered coal slag.

Description

Technical Field

[0001] The present invention belongs to the technical field of coal mine mining, and particularly relates to an equipment for deep-hole conveying and energy-absorbing impact-proof materials in coal mines. Background Art

[0002] During the process of coal mine mining, two kinds of polyurethane slurries are often injected into the coal and rock mass of the coal mine in equal amounts. The polyurethane material undergoes an expansive curing reaction in the coal and rock mass and reinforces the loose coal and rock mass into an organic whole, thereby improving the strength and integrity of the coal and rock mass. The functions of polyurethane on the coal and rock mass include acting as a network skeleton, bonding and enhancing, filling and compressing, and preventing impact damage.

[0003] In the traditional method of injecting polyurethane into the coal and rock mass of the coal mine, usually the two kinds of polyurethane slurries are injected into the coal and rock mass separately. However, this method often easily causes the two kinds of polyurethane slurries to be not mixed sufficiently, resulting in insufficient curing of the polyurethane, and further reducing the role played by the polyurethane. At the same time, the existing equipment injects the two kinds of polyurethane slurries into the coal seam separately, causing a long time waste. At the same time, it is difficult for the existing equipment to clean the coal slag scattered in the deep holes filled with polyurethane well, thus hindering the pipeline for transporting polyurethane from being inserted into the deep holes.

[0004] Therefore, an equipment for deep-hole conveying and energy-absorbing impact-proof materials in coal mines is needed to solve the above technical problems. Summary of the Invention

[0005] The present invention provides an equipment for deep-hole conveying and energy-absorbing impact-proof materials in coal mines, which can not only convey the two kinds of polyurethane slurries simultaneously, but also effectively mix the two kinds of slurries and can effectively clean the scattered coal slag.

[0006] To solve the above technical problems, the present invention provides the following technical solutions:

[0007] An equipment for deep-hole conveying and energy-absorbing impact-proof materials in coal mines includes a dust suction pipe, a shunt pipe, an overhead mechanism, a mixing injection pipe, a dust suction sleeve, a slag crushing device, a traveling device, a dust filtering device, and an opening and closing mechanism.

[0008] The shunt pipe is sleeved inside the dust suction pipe. One end of the shunt pipe penetrates through the dust suction pipe, and the other end of the shunt pipe does not penetrate through the dust suction pipe. And the end of the shunt pipe that does not penetrate through the dust suction pipe is fixedly connected to the mixing injection pipe.

[0009] An overhead mechanism is arranged between the inner wall of the dust suction pipe and the outer wall of the shunt pipe.

[0010] A dust suction sleeve is fixedly connected to the dust suction pipe around the mixing injection pipe. An opening and closing mechanism and a slag crushing device are sequentially arranged between the dust suction sleeve and the mixing injection pipe from the end of the dust suction pipe inward.

[0011] The traveling device is arranged circumferentially on the dust suction sleeve.

[0012] The end of the dust suction pipe is connected to the dust filtering device.

[0013] Two flow diversion channels are penetrated and arranged in the flow diversion pipe, and injection nozzles communicated with the flow diversion channels are fixedly connected to one end of the flow diversion pipe penetrating through the dust suction pipe corresponding to the flow diversion channels.

[0014] The overhead mechanism includes an overhead guide rail, an overhead fixing ring and an elastic rod.

[0015] The overhead guide rail is fixedly installed on the inner wall of the dust suction pipe.

[0016] An overhead fixing ring is fixedly connected to the inner wall of the flow diversion pipe corresponding to the overhead guide rail, and no less than two elastic rods are circumferentially arranged between the overhead fixing ring and the overhead guide rail.

[0017] The elastic rod is slidably connected to the overhead guide rail and fixedly connected to the overhead fixing ring.

[0018] The elastic rod is bent and the bending directions of adjacent elastic rods are opposite.

[0019] No less than one set of stirring devices are arranged axially inside the mixing injection pipe. Each set of stirring devices includes no less than two stirring rods fixedly connected to the inner wall of the mixing injection pipe and distributed circumferentially along the mixing injection pipe, and the stirring rods in each set of stirring devices are staggered with each other.

[0020] A crushing placement groove is arranged inside the dust suction sleeve.

[0021] A hollow crushing placement box communicated with the crushing placement groove is arranged inside the dust suction sleeve, and the crushing placement boxes are uniformly distributed along the circumference of the dust suction pipe.

[0022] Traveling installation grooves parallel to the axis of the dust suction sleeve are arranged on the outside of the dust suction sleeve. No less than two traveling installation grooves are uniformly distributed along the circumference of the dust suction sleeve for the matching installation of the traveling device.

[0023] The slag crushing device includes a slag crushing motor, a slag crushing driving gear, a synchronous gear, an intermediate gear, a crushing gear, a crushing belt pulley, a crushing cone and a crushing belt.

[0024] The synchronous gear is arranged in the crushing placement groove of the dust suction sleeve. The synchronous gear is coaxial with the dust suction sleeve and rotatably connected to the dust suction sleeve.

[0025] The synchronous gear is a double-sided gear. The outside of the synchronous gear meshes with the slag crushing driving gear. A slag crushing motor is fixedly connected to the rear side of the dust suction sleeve corresponding to the position of the slag crushing driving gear. The driving shaft of the slag crushing motor passes through the dust suction sleeve and is fixedly connected to the slag crushing driving gear.

[0026] The inner side of the synchronous gear meshes with the intermediate gear. A crushing pulley is fixedly connected to the intermediate gear. The number and installation positions of the intermediate gear and the crushing placement box of the dust suction sleeve correspond to each other. Two mutually meshing crushing gears are rotatably connected to the middle position of the crushing placement box. A crushing pulley is fixedly connected to one of the crushing gears and is connected to the crushing pulley on the intermediate gear through a crushing belt.

[0027] The crushing gear passes through the crushing placement box and is fixedly connected with a crushing cone. A spiral notch is provided on the crushing cone.

[0028] The traveling device includes traveling wheels, a traveling mounting seat, a cooperative gear, a cooperative rod, a pressing slider and a pressing spring.

[0029] The pressing slider is installed in the traveling installation groove of the dust suction sleeve. One pressing slider is slidably connected to each of the front and rear ends of the traveling installation groove, and a pressing spring is fixedly connected between the pressing slider and the end of the traveling installation groove.

[0030] The pressing slider is connected to the traveling mounting seat through a cooperative rod. The cooperative rod is hinged to the pressing slider. A cooperative gear is fixedly connected to the end of the cooperative rod that is hinged to the traveling mounting seat. The two cooperative gears at the traveling mounting seat are meshed with each other.

[0031] A traveling wheel is rotatably connected to one end of the traveling mounting seat away from the dust suction sleeve.

[0032] The pressing sliders located in the same section of the traveling installation groove are connected through a synchronous ring.

[0033] Locking plates are fixedly connected to both sides of the synchronous ring corresponding to the pressing slider. Locking holes are provided on the locking plates. Locking bolts are threadedly connected in the locking holes, and the locking bolts press on the pressing slider.

[0034] The dust filtering device includes a dust filtering box, a dust filtering net and a dust filtering fan.

[0035] The dust filtering box communicates with the dust suction pipe.

[0036] A dust filtering net is fixedly arranged on the pipeline in the air outlet direction in the dust filtering box.

[0037] A dust filtering fan is rotatably mounted in the dust filtering box.

[0038] A brush is arranged at one end of the dust filtering fan corresponding to the dust filtering net, and the brush on the dust filtering fan contacts the dust filtering net.

[0039] The opening and closing mechanism includes an opening and closing plate, a main opening and closing bevel gear, a separate opening and closing bevel gear, an opening and closing motor, a fixing plate and a movable plate.

[0040] The fixed plate is arc-shaped and is arranged between the dust suction sleeve and the mixing injection pipe.

[0041] The fixed plate is arranged in two layers, front and back, and there are at least two fixed plates circumferentially distributed around the mixing injection pipe.

[0042] The opening and closing plate is rotatably connected to the inner wall of the dust suction sleeve.

[0043] The middle of the opening and closing plate is in a through shape.

[0044] An activity plate is fixedly connected inside the opening and closing plate.

[0045] The activity plate is clamped between the two layers of fixed plates.

[0046] A main opening and closing bevel gear is fixedly connected to the front end of the opening and closing plate.

[0047] A separate opening and closing bevel gear is meshed with the edge of the main opening and closing bevel gear.

[0048] The opening and closing motor is arranged inside the dust suction sleeve.

[0049] The output shaft of the opening and closing motor is fixedly connected to the separate opening and closing bevel gear.

[0050] Compared with the prior art, the beneficial effects of the technical solution of the present invention are:

[0051] (1) In the present invention, two shunt channels in the shunt pipe are used to inject two kinds of polyurethane slurries simultaneously, which helps to improve the full mixing of the two kinds of polyurethane slurries, so that the polyurethane can be cured more fully. At the same time, in the present invention, the slag device can crush the coal slag in the deep hole, so as to prevent the coal slag from accumulating between the dust suction pipe and the mixing injection pipe due to too large particles.

[0052] (2) In the present invention, the traveling device facilitates the smoother traveling of the dust suction sleeve in the deep hole, and the traveling device can also be freely adjusted according to the change of the hole diameter.

[0053] (3) In the present invention, a plurality of elastic rods are used to lift the mixing injection pipe and the dust suction pipe off the ground, so as to ensure the ventilation between the dust suction pipe and the mixing injection pipe. Description of the Drawings

[0054] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0055] Figure 1 Schematic structural diagram of the equipment for deep-hole conveying and energy-absorbing impact prevention material in coal mines of the present invention;

[0056] Figure 2 Of the present invention Figure 1 Enlarged schematic diagram of the structure at position A in the present invention;

[0057] Figure 3 Of the present invention Figure 1 Enlarged schematic diagram of the structure at position B in the present invention;

[0058] Figure 4 Schematic diagram of the installation position of the traveling device in the present invention;

[0059] Figure 5 Of the present invention Figure 4 Enlarged schematic diagram of the structure at position C in the present invention;

[0060] Figure 6 Schematic diagram of the installation relationship between the mixing injection pipe and the dust suction sleeve in the present invention;

[0061] Figure 7 Of the present invention Figure 6 Enlarged schematic diagram of the structure at position D in the present invention;

[0062] Figure 8 Schematic diagram of the installation position of the dust filtering device in the present invention;

[0063] Figure 9 Of the present invention Figure 8 Enlarged schematic diagram of the structure at position E in the present invention;

[0064] Figure 10 Of the present invention Figure 8 Enlarged schematic diagram of the structure at position F in the present invention;

[0065] Figure 11 Cross-sectional schematic diagram of the shunt pipe of the present invention.

[0066] Wherein: 1. Dust suction pipe;

[0067] 2. Shunt pipe; 21. Shunt channel; 22. Injection nozzle;

[0068] 3. Overhead mechanism; 31. Overhead guide rail; 32. Overhead fixing ring; 33. Elastic rod;

[0069] 4. Mixing injection pipe; 41. Stirring rod;

[0070] 5. Dust suction sleeve; 51. Crushing placement groove; 52. Crushing placement box; 53. Traveling installation groove;

[0071] 6. Crushing device; 61. Crushing motor; 62. Crushing drive gear; 63. Synchronous gear; 64. Intermediate gear; 65. Crushing gear; 66. Crushing pulley; 67. Crushing cone; 68. Crushing belt;

[0072] 7. Traveling device; 71. Traveling wheel; 72. Traveling mounting seat; 73. Cooperative gear; 74. Cooperative rod; 75. Pressing slider; 76. Pressing spring; 77. Synchronous ring; 78. Locking plate; 79. Locking bolt;

[0073] 8. Dust filtering device; 81. Dust filtering box; 82. Dust filtering net; 83. Dust filtering fan;

[0074] 9. Opening and closing mechanism; 91. Opening and closing plate; 92. Main opening and closing bevel gear; 93. Sub-opening and closing bevel gear; 94. Opening and closing motor; 95. Fixed plate; 96. Movable plate. Detailed implementation mode

[0075] To make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will be described in detail with reference to the drawings and specific embodiments.

[0076] The present invention provides a device for transporting energy-absorbing and impact-proof materials in deep coal mine holes.

[0077] As Figure 1 shown, the device includes a dust suction pipe 1, a shunt pipe 2, an overhead mechanism 3, a mixing injection pipe 4, a dust suction sleeve 5, a crushing device 6, a traveling device 7, a dust filtering device 8 and an opening and closing mechanism 9.

[0078] A shunt pipe 2 is sleeved inside the dust suction pipe 1. One end of the shunt pipe 2 penetrates through the dust suction pipe 1, and the other end of the shunt pipe 2 does not penetrate through the dust suction pipe 1. And the end of the shunt pipe 2 that does not penetrate through the dust suction pipe 1 is fixedly connected to the mixing injection pipe 4.

[0079] An overhead mechanism 3 is arranged between the inner wall of the dust suction pipe 1 and the outer wall of the shunt pipe 2.

[0080] A dust suction sleeve 5 is fixedly connected to the dust suction pipe 1 around the mixing injection pipe 4. An opening and closing mechanism 9 and a crushing device 6 are sequentially arranged between the dust suction sleeve 5 and the mixing injection pipe 4 from the end of the dust suction pipe 1 inward.

[0081] A traveling device 7 is arranged circumferentially on the dust suction sleeve 5.

[0082] The end of the dust suction pipe 1 is connected to the dust filtering device 8.

[0083] As Figure 9 , two shunt channels 21 are penetrated and opened in the shunt pipe 2, and a nozzle 22 communicated with the shunt channel 21 is fixedly connected to the end of the shunt pipe 2 penetrating through the dust suction pipe 1 corresponding to the shunt channel 21.

[0084] AsFigure 3 , the overhead mechanism 3 includes an overhead guide rail 31, an overhead fixing ring 32, and an elastic rod 33.

[0085] The overhead guide rail 31 is fixedly installed on the inner wall of the dust suction pipe 1.

[0086] An overhead fixing ring 32 is fixedly connected to the inner wall of the shunt pipe 2 corresponding to the overhead guide rail 31. At least two elastic rods 33 are circumferentially arranged between the overhead fixing ring 32 and the overhead guide rail 31.

[0087] The elastic rod 33 is slidably connected to the overhead guide rail 31 and fixedly connected to the overhead fixing ring 32.

[0088] The elastic rod 33 is bent, and the bending directions of adjacent elastic rods 33 are opposite.

[0089] As Figure 6 , at least one set of stirring devices is arranged axially inside the mixing injection pipe 4. Each set of stirring devices includes at least two stirring rods 41 fixedly connected to the inner wall of the mixing injection pipe 4 and circumferentially distributed along the mixing injection pipe 4. And the stirring rods 41 in each set of stirring devices are staggered with each other, so that the slurries of the two polyurethanes can be fully stirred and mixed when encountering multiple sets of stirring devices.

[0090] As Figure 5 , Figure 6 , Figure 7 , a crushing placement groove 51 is formed inside the dust suction sleeve 5.

[0091] A hollow crushing placement box 52 communicating with the crushing placement groove 51 is arranged inside the dust suction sleeve 5. The crushing placement boxes 52 are evenly distributed along the circumference of the dust suction pipe 1.

[0092] A traveling installation groove 53 parallel to the axis of the dust suction sleeve 5 is formed on the outer side of the dust suction sleeve 5. At least two traveling installation grooves 53 are evenly distributed along the circumference of the dust suction sleeve 5 for the cooperative installation of the traveling device 7.

[0093] As Figure 7 , the slag crushing device 6 includes a slag crushing motor 61, a slag crushing driving gear 62, a synchronous gear 63, an intermediate gear 64, a crushing gear 65, a crushing belt pulley 66, a crushing cone 67, and a crushing belt 68.

[0094] The synchronous gear 63 is arranged in the crushing placement groove 51 of the dust suction sleeve 5. The synchronous gear 63 is coaxial with the dust suction sleeve 5 and rotatably connected to the dust suction sleeve 5.

[0095] The synchronous gear 63 is a double-sided gear, the outer side of the synchronous gear 63 meshes with the slag driving gear 62, the rear side of the dust collection sleeve 5 is fixedly connected to the slag motor 61 at the position corresponding to the slag driving gear 62, and the driving shaft of the slag motor 61 passes through the dust collection sleeve 5 and is fixedly connected to the slag driving gear 62.

[0096] The inner side of the synchronous gear 63 is meshed with an intermediate gear 64, and a crushing pulley 66 is fixedly connected to the intermediate gear 64. The intermediate gear 64 corresponds to the position and number of the crushing placement box 52 of the dust collection sleeve 5. The middle position of the crushing placement box 52 is rotatably connected to two mutually meshing crushing gears 65, one of which is fixedly connected to a crushing pulley 66, which is connected to the crushing pulley on the intermediate gear 64 through a crushing belt 68.

[0097] The crushing gear 65 passes through the crushing placement box 52 and is fixedly connected to a crushing cone 67. The crushing cone 67 is provided with a spiral notch, which helps to twist the coal slag between the two crushing cones 67, thereby improving the crushing effect.

[0098] like Figure 5 , Figure 4 The traveling device 7 includes a traveling wheel 71, a traveling mounting seat 72, a cooperative gear 73, a cooperative rod 74, a pressing slider 75 and a pressing spring 76.

[0099] The pressing slider 75 is installed in the traveling installation groove 53 of the dust collection sleeve 5, and a pressing slider 75 is slidably connected to each of the front and rear ends of the traveling installation groove 53, and a pressing spring 76 is fixedly connected between the pressing slider 75 and the end of the traveling installation groove 53.

[0100] The pressing slider 75 is connected to the traveling mounting seat 72 via a cooperative rod 74. The cooperative rod 74 is hinged to the pressing slider 75. The cooperative rod 74 is fixedly connected to a cooperative gear 73 at one end hinged to the traveling mounting seat 72. The two cooperative gears 73 at the traveling mounting seat 72 are meshed with each other.

[0101] The end of the traveling mounting seat 72 away from the dust collecting sleeve 5 is rotatably connected to the traveling wheel 71.

[0102] The pressing slider 75 located at the same section of the traveling installation groove 53 is connected through a synchronization ring 71.

[0103] The synchronization ring 77 is fixedly connected with locking plates 78 on both sides of the corresponding pressing slider 75 . The locking plates 78 are provided with locking holes, and locking bolts 79 are threadedly connected in the locking holes. The locking bolts 79 press against the pressing slider 75 .

[0104] like Figure 8, the dust filtering device 8 includes a dust filtering box 81, a dust filtering net 82 and a dust filtering fan 83,

[0105] The dust filtering box 81 communicates with the dust suction pipe 1,

[0106] A dust filtering net 82 is fixedly arranged on the pipeline in the air outlet direction in the dust filtering box 81,

[0107] A dust filtering fan 83 is rotatably mounted in the dust filtering box 81,

[0108] One end of the dust filtering fan 83 corresponding to the dust filtering net 82 is provided with a brush, and the brush on the dust filtering fan 83 is in contact with the dust filtering net 82.

[0109] During the dust filtering process, the crushed cinder and dust will be filtered by the dust filtering net 82. At the same time, the air flow will drive the rotation of the dust filtering fan 83, and the dust filtering fan 83 drives the rotation of the brush to clean the dust on the dust filtering net 82.

[0110] Such as Figure 2 , the opening and closing mechanism 9 includes an opening and closing plate 91, a main opening and closing bevel gear 92, a separating opening and closing bevel gear 93, an opening and closing motor 94, a fixing plate 95 and a movable plate 96,

[0111] The fixing plate 95 is arc-shaped and is arranged between the dust suction sleeve 5 and the mixing injection pipe 4,

[0112] The fixing plate 95 is arranged in two layers front and back, and the fixing plate 95 is circumferentially distributed around the mixing injection pipe 4 with no less than two,

[0113] The opening and closing plate 91 is rotatably connected to the inner wall of the dust suction sleeve 5,

[0114] The middle of the opening and closing plate 91 is through,

[0115] A movable plate 96 is fixedly connected inside the opening and closing plate 91,

[0116] The movable plate 96 is clamped between the two layers of fixing plates 95,

[0117] The front end of the opening and closing plate 91 is fixedly connected with a main opening and closing bevel gear 92,

[0118] The edge of the main opening and closing bevel gear 92 meshes with a separating opening and closing bevel gear 93,

[0119] The opening and closing motor 94 is arranged in the dust suction sleeve 5,

[0120] The output shaft of the opening and closing motor 94 is fixedly connected with the separating opening and closing bevel gear 93.

[0121] During the process of transporting polyurethane material into the deep hole, the shunt pipe 2 and the dust suction pipe 1 need to be first placed into the deep hole. The equipment can be smoothly transported into the deep hole through the traveling device 7. During the transportation process, an external air extraction device such as an air pump is connected to the dust filtering device 8 for air extraction. At this time, the dust filtering device 8 will generate suction force on the dust suction pipe 1, thereby sucking the coal slag into the slag crushing device 6. The coal slag is crushed by the slag crushing device 6 to prevent the coal slag from accumulating between the dust suction pipe 1 and the mixing injection pipe 4 due to too large particles, thus affecting the air permeability. The overhead mechanism 3 can keep a gap between the dust suction pipe 1 and the mixing injection pipe 4 all the time, thereby ensuring the air permeability between the dust suction pipe 1 and the mixing injection pipe 4. The coal slag is filtered by the dust filtering device 8, and then two kinds of polyurethane slurries are injected into the two shunt channels 21 through the injection nozzle 22 fixed on the shunt pipe 2. Finally, the two slurries will be injected into the coal mine rock formation with polyurethane through the mixing injection pipe 4.

[0122] During the process of crushing the coal slag by the slag crushing device 6, the output shaft of the slag crushing motor 61 drives the slag crushing driving gear 62 to rotate. The slag crushing driving gear 62 drives the synchronous gear 63 to rotate. The synchronous gear 63 drives the intermediate gear 64 to rotate. The intermediate gear 64 drives the crushing belt pulley 66 to rotate. The crushing belt pulley 66 drives one of the crushing gears 65 to rotate through the crushing belt 68. The two crushing gears 65 mesh with each other and drive the crushing cones 67 fixedly connected to them to rotate in the opposite direction, thereby crushing the coal slag.

[0123] To facilitate the movement of the equipment in the deep hole, a traveling device 7 is arranged on the outer side of the dust suction sleeve 5. During the traveling process, the traveling wheels 71 will contact the side wall of the deep hole, and the equipment can smoothly move in the deep hole by rolling. When the diameter of the deep hole changes, the traveling wheels 71 will be compressed and move closer to the dust suction sleeve 5, and at the same time, pressure is applied to the traveling mounting seat 72. The traveling mounting seat 72 makes the top pressure slider 75 move back and forth through the cooperation rod 74. At the same time, the top pressure spring 76 is compressed. At the same time, under the action of the cooperation gear 73, the cooperation rod 74 swings synchronously to both sides, so that the postures of the traveling wheels 71 and the traveling mounting seat 72 will never change, thus ensuring the stability of the movement.

[0124] In this equipment, in order to ensure that the dust suction sleeve 5 is in the middle position of the deep hole as much as possible, the top pressure sliders 75 on the same side move cooperatively through the synchronous ring 77, so that the outer sides of the traveling wheels 71 are on the same concentric circle, thereby ensuring that the dust suction sleeve 5 is in the center position of the deep hole.

[0125] In use, when injecting the polyurethane solution, it is necessary to prevent the polyurethane solution from entering between the dust suction sleeve 5 and the mixing injection pipe 4. The opening and closing mechanism 9 is used to seal between the dust suction sleeve 5 and the mixing injection pipe 4. The opening and closing motor 94 drives one of the split opening and closing bevel gears 93 to rotate, and the split opening and closing bevel gear 93 drives the main opening and closing bevel gear 92 to rotate. The main opening and closing bevel gear 92 drives the movable plate 96 to be clamped between the adjacent opening and closing plates 91, thereby completing the sealing between the dust suction sleeve 5 and the mixing injection pipe 4.

[0126] In addition, the mixing injection pipe 4 and the dust suction pipe 1 are suspended by a plurality of elastic rods 33, so as to ensure the air permeability between the dust suction pipe 1 and the mixing injection pipe 4. When the dust suction pipe 1 and the shunt pipe 2 are bent, the elastic rods 33 are bent, and one end thereof will be slidably connected to the overhead guide rail 31, so as to ensure that a single elastic rod 33 will not be overly compressed.

[0127] The working principle of this equipment is as follows:

[0128] In the process of transporting the polyurethane material into the deep hole, first, the shunt pipe 2 and the dust suction pipe 1 need to be placed into the deep hole. The traveling device 7 can smoothly transport this device into the deep hole. During the transportation process, air is pumped from the outside through an air pump or other air extraction device to the dust filtering device 8. At this time, the dust filtering device 8 generates suction force in the dust suction pipe 1, so as to suck the coal cinder into the slag crushing device 6. The slag crushing device 6 will crush the coal cinder to prevent the coal cinder from accumulating between the dust suction pipe 1 and the mixing injection pipe 4 due to too large particles, thus affecting the air permeability. In this process, the output shaft of the slag crushing motor 61 drives the slag crushing driving gear 62 to rotate, the slag crushing driving gear 62 drives the synchronous gear 63 to rotate, the synchronous gear 63 drives the intermediate gear 64 to rotate, the intermediate gear 64 drives the crushing pulley 66 to rotate, and the crushing pulley 66 drives one of the crushing gears 65 to rotate through the crushing belt 68. The two crushing gears 65 mesh with each other and drive the crushing cones 67 fixedly connected thereto to rotate in the opposite direction, so as to crush the coal cinder. The overhead mechanism 3 can keep a gap between the dust suction pipe 1 and the mixing injection pipe 4 all the time, so as to ensure the air permeability between the dust suction pipe 1 and the mixing injection pipe 4, and the coal cinder is filtered by the dust filtering device 8. Then, two kinds of polyurethane slurries are injected into the two shunt channels 21 through the injection nozzle 22 fixed on the shunt pipe 2. Finally, the two slurries will inject polyurethane into the coal mine rock formation through the mixing injection pipe 4. At the same time, the traveling device facilitates the dust suction sleeve 5 to travel more smoothly in the deep hole, and the traveling device can also be freely adjusted according to the change of the hole diameter.

[0129] The above are the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An equipment for conveying energy-absorbing and impact-proof materials in deep holes of coal mines, characterized in that, It includes a dust suction pipe, a shunt pipe, an overhead mechanism, a mixing injection pipe, a dust suction sleeve, a slag crushing device, a traveling device, a dust filtering device and an opening and closing mechanism. A shunt pipe is sleeved inside the dust suction pipe. One end of the shunt pipe penetrates through the dust suction pipe, and the other end of the shunt pipe does not penetrate through the dust suction pipe. And the non-penetrating end of the shunt pipe is fixedly connected to the mixing injection pipe. An overhead mechanism is arranged between the inner wall of the dust suction pipe and the outer wall of the shunt pipe. A dust suction sleeve is fixedly connected to the dust suction pipe around the mixing injection pipe. An opening and closing mechanism and a slag crushing device are sequentially arranged from the end of the dust suction pipe inward between the dust suction sleeve and the mixing injection pipe. The traveling device is arranged circumferentially on the dust suction sleeve. The end of the dust suction pipe is connected to the dust filtering device. The overhead mechanism includes an overhead guide rail, an overhead fixing ring and an elastic rod. The overhead guide rail is fixedly installed on the inner wall of the dust suction pipe. An overhead fixing ring is fixedly connected to the inner wall of the shunt pipe corresponding to the overhead guide rail. At least two elastic rods are circumferentially arranged between the overhead fixing ring and the overhead guide rail. The elastic rod is slidably connected to the overhead guide rail and fixedly connected to the overhead fixing ring. The elastic rod is bent and the bending directions of adjacent elastic rods are opposite. A crushing placement groove is formed inside the dust suction sleeve. A hollow crushing placement box communicated with the crushing placement groove is arranged inside the dust suction sleeve. The crushing placement boxes are evenly distributed along the circumference of the dust suction pipe. A traveling installation groove parallel to the axial direction of the dust suction sleeve is formed on the outer side of the dust suction sleeve. At least two traveling installation grooves are evenly distributed along the circumference of the dust suction sleeve for the cooperative installation of the traveling device. The slag crushing device includes a slag crushing motor, a slag crushing drive gear, a synchronous gear, an intermediate gear, a crushing gear, a crushing belt pulley, a crushing cone and a crushing belt. The synchronous gear is arranged in the crushing placement groove of the dust suction sleeve. The synchronous gear is concentric with the dust suction sleeve and is rotatably connected to the dust suction sleeve. The synchronous gear is a double-sided gear. The outer side of the synchronous gear meshes with the slag crushing drive gear. A slag crushing motor is fixedly connected to the rear side of the dust suction sleeve corresponding to the position of the slag crushing drive gear. The drive shaft of the slag crushing motor penetrates through the dust suction sleeve and is fixedly connected to the slag crushing drive gear. The inner side of the synchronous gear meshes with the intermediate gear. A crushing belt pulley is fixedly connected to the intermediate gear. The number and installation positions of the intermediate gear and the crushing placement boxes of the dust suction sleeve correspond to each other. Two mutually meshing crushing gears are rotatably connected to the middle position of the crushing placement box. A crushing belt pulley is fixedly connected to one of the crushing gears and is connected to the crushing belt pulley on the intermediate gear through a crushing belt. The crushing gear penetrates through the crushing placement box and is fixedly connected to a crushing cone. A spiral notch is formed on the crushing cone. The traveling device includes a traveling wheel, a traveling mounting seat, a cooperative gear, a cooperative rod, a top pressing slider and a top pressing spring. The top pressing slider is installed in the traveling installation groove of the dust suction sleeve. A top pressing slider is slidably connected to each of the front and rear ends of the traveling installation groove. And a top pressing spring is fixedly connected between the top pressing slider and the end of the traveling installation groove. The top pressing slider is connected to the traveling mounting seat through a cooperation rod. The cooperation rod is hinged to the top pressing slider, and a cooperation gear is fixedly connected to one end of the cooperation rod that is hinged to the traveling mounting seat. The two cooperation gears at the traveling mounting seat are meshed with each other. A traveling wheel is rotatably connected to one end of the traveling mounting seat away from the dust suction sleeve. The top pressing sliders located in the same section of the traveling mounting groove are connected through a synchronization ring. Locking plates are fixedly connected to both sides of the synchronization ring corresponding to the top pressing slider. Locking holes are formed in the locking plates, and locking bolts are threadedly connected in the locking holes. The locking bolts press against the top pressing slider.

2. The equipment for deep-hole conveying and energy-absorbing impact-proof materials in coal mines according to claim 1, characterized in that Two flow dividing channels are formed through the flow dividing pipe. Nozzles communicating with the flow dividing channels are fixedly connected to one end of the flow dividing pipe penetrating the dust suction pipe corresponding to the flow dividing channels.

3. The equipment for deep-hole conveying and energy-absorbing impact prevention material in coal mines according to claim 1, characterized in that, No less than one set of stirring devices are arranged along the axial direction inside the mixing injection pipe. Each set of stirring devices includes no less than two stirring rods fixedly connected to the inner wall of the mixing injection pipe and distributed circumferentially along the mixing injection pipe, and the stirring rods in each set of stirring devices are staggered with each other.

4. The equipment for deep-hole conveying and energy-absorbing impact-proof materials in coal mines according to claim 1, characterized in that, The dust filtering device includes a dust filtering box, a dust filtering net, and a dust filtering fan. The dust filtering box communicates with the dust suction pipe. A dust filtering net is fixedly arranged on the pipeline in the air outlet direction in the dust filtering box. A dust filtering fan is rotatably mounted in the dust filtering box. A brush is arranged at one end of the dust filtering fan corresponding to the dust filtering net, and the brush on the dust filtering fan is in contact with the dust filtering net.

5. The equipment for deep-hole conveying and energy-absorbing impact prevention material in coal mines according to claim 1, characterized in that, The opening and closing mechanism includes an opening and closing plate, a main opening and closing bevel gear, a separate opening and closing bevel gear, an opening and closing motor, a fixing plate, and a movable plate. The fixing plate is arc-shaped and is arranged between the dust suction sleeve and the mixing injection pipe. The fixing plate is arranged in two layers front and back, and no less than two fixing plates are distributed circumferentially around the mixing injection pipe. The opening and closing plate is rotatably connected to the inner wall of the dust suction sleeve. The middle of the opening and closing plate is in a through shape. A movable plate is fixedly connected inside the opening and closing plate. The movable plate is clamped between the two layers of fixing plates. A main opening and closing bevel gear is fixedly connected to the front end of the opening and closing plate. A separate opening and closing bevel gear is meshed with the edge of the main opening and closing bevel gear. The opening and closing motor is arranged inside the dust suction sleeve. The output shaft of the opening and closing motor is fixedly connected to the separate opening and closing bevel gear.

Images