A kind of environmental protection dust suppression device for coal mining

Abstract

The present invention belongs to the technical field of coal mining dust reduction, and specifically is an environmentally friendly coal mining dust reduction device, comprising a support frame, two baffles are symmetrically installed on both sides of the upper end surface of the support frame, a fixed frame is installed on one side of the upper end surface of the support frame, a conveyor belt is installed in the inner cavity of the support frame, a second rotating shaft is rotatably connected in one side of the support frame, one end of the second rotating shaft is fixedly connected to the conveyor belt, and a spray dust reduction component is arranged inside the lower end of the fixed frame; the invention solves the problem that when a coal mining machine is used to mine coal in a coal rock layer in a mine, a conveyor frame is usually installed under the coal mining machine, and then the conveyor frame is used to collect coal blocks taken by the coal mining machine, and at the same time, the conveyor frame is used to transport the coal blocks to the conveyor belt, and the coal blocks are transported out of the mine through the conveyor belt. When the conveyor frame transports the coal blocks to the conveyor belt, if the coal blocks are not subjected to dust reduction treatment, the coal falling on the conveyor belt will generate a large amount of dust, affecting the operating environment and vision of the workers.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mining dust reduction, in particular to an environmentally friendly coal mining dust reduction device. Background Art

[0002] Coal mining methods can be divided into open-pit mining and underground mining, of which underground mining accounts for about 90% of the total output. Underground mining may cause cracks, collapse and other land damage on the surface, forming coal mining subsidence areas in the goaf, and tailings are used for backfilling and ecological restoration technical specifications for coal mining subsidence areas. In the process of using coal mining machines, the generation of dust is a problem that must be solved. Usually, when mining coal, a water nozzle is set on the drill bit of the coal mining machine or a dust suppression device is installed at the tail of the coal conveying equipment to prevent the coal conveying equipment from transporting coal from the mine to the coal accumulation area. When the coal falls into the accumulation area, dust will be generated, reducing the pollution of dust to the working environment.

[0003] A patent with publication number CN111535808B discloses an environmentally friendly dust reduction device for a coal mining machine and a working method thereof. Through the coordinated use of a dust removal seat, a first spray plate, a second spray plate and a third spray plate, the coal blocks on the coal transport pipe can be sprayed for dust removal. The dust removal liquid is transported to the interior of the first spray plate, the second spray plate and the third spray plate through a plurality of feed ports, and sprayed downward through a plurality of nozzles. Through the rotation of the first rotating column and the second rotating column, the position between the second spray plate and the third spray plate and the first spray plate can be adjusted, so that the coal transport pipe can be sprayed more comprehensively, effectively improving the spraying effect of the coal blocks on the coal transport pipe, and solving the problem that the existing solution does not spray comprehensively during the transportation of coal blocks, thereby resulting in poor dust removal effect during the transportation of coal blocks.

[0004] The above-mentioned prior art still has some problems in actual use. When using a coal mining machine to mine coal rock layers in a mine, a conveyor rack is usually installed under the coal mining machine, and then the conveyor rack is used to collect the coal blocks taken by the coal mining machine. At the same time, the conveyor rack is used to transport the coal blocks to a conveyor belt, and the coal blocks are transported out of the mine through the conveyor belt. When the conveyor rack transports the taken coal blocks to the conveyor belt, if it is not subjected to dust reduction treatment, the coal falling on the conveyor belt will generate a large amount of dust, affecting the workers' operating environment and vision.

[0005] To this end, the present invention provides a coal mining environmentally friendly dust reduction device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a coal mining environmental protection dust reduction device described in the present invention comprises a support frame, two baffles are symmetrically installed on both sides of the upper end surface of the support frame, a fixed frame is installed on one side of the upper end surface of the support frame, a conveyor belt is installed in the inner cavity of the support frame, a second rotating shaft is rotatably connected in one side of the support frame, one end of the second rotating shaft is fixedly connected to the conveyor belt, and a spray dust reduction component is arranged inside the lower end of the fixed frame;

[0008] The spray dust suppression component includes a plurality of slide grooves provided inside the lower end surface of the fixed frame, the inner cavities of the plurality of slide grooves are all fixedly connected with a fixed cylinder, the lower end of the fixed cylinder is fixedly connected with a water guide pipe, a plurality of atomizing nozzles are evenly arranged inside the lower end of the water guide pipe, and a one-way valve is arranged in the inner cavity of the atomizing nozzle, and the one-way valve can only be flipped open toward the water outlet of the atomizing nozzle;

[0009] The lower end of the support frame is fixedly connected to two bases, and the two bases are used to be installed on a coal mining machine to cooperate with a drill bit to mine and transport coal.

[0010] Preferably, a transmission bevel gear is fixedly connected to one end of the second rotating shaft, first dust covers are installed on both sides of the support frame, a rotating column is rotatably connected inside one end of the first dust cover, two driven bevel gears are fixedly connected to both ends of the rotating column, and one of the driven bevel gears is meshingly connected to the transmission bevel gear.

[0011] Preferably, a transmission shaft is rotatably connected inside the upper end of the first dust cover, first bevel gears are fixedly connected to both ends of the transmission shaft, and the first bevel gear located in the inner cavity of the first dust cover is meshedly connected with the driven bevel gear.

[0012] Preferably, the second dust cover is rotatably connected to the outside of both ends of the transmission shaft, the second dust cover is installed with a fixing frame, and the first bevel gear located in the inner cavity of the second dust cover is meshedly connected with the second bevel gear.

[0013] Preferably, a third dust cover is installed on the upper end surface of the fixed frame, a plurality of connecting rods are rotatably connected to the inner cavity of the third dust cover, and three U-shaped rotating blocks are fixedly connected between the plurality of connecting rods, one end of the connecting rod passes through the second dust cover and is fixedly connected to the second bevel gear, a fixed block is fixedly connected to one side of the upper end surface of the fixed frame, and one end of the connecting rod is rotatably connected to the fixed block.

[0014] Preferably, the inner cavity of the U-shaped rotating block is rotatably connected to a swing rod, one end of the swing rod is rotatably connected to a U-shaped fixing frame, and a piston is fixed to the lower end of the U-shaped fixing frame, and the piston is slidably connected in the inner cavity of the slide groove, and one-way valves are provided on both sides of the inner cavity of the water pipe.

[0015] Preferably, a discharge port is provided on one side of the upper end of the support frame, two support blocks are symmetrically fixedly connected to one side of the lower end surface of the support frame, and a material guide plate is rotatably connected between the two support blocks.

[0016] Preferably, a rotating groove is opened inside the support block, and a first rotating shaft is rotatably connected to the inner cavity of the rotating groove, one end of the first rotating shaft is fixedly connected to the material guide plate, and the first rotating shaft is located outside the inner cavity of the rotating groove and is fixedly connected to a fixed disk, a torsion spring is fixedly connected to one side of the fixed disk, and one end of the torsion spring is fixedly connected to the inner wall of the rotating groove.

[0017] Preferably, a third bevel gear is fixedly connected to the outside of the transmission shaft, the third bevel gear is meshingly connected to a fourth bevel gear, and one end of the fourth bevel gear passes through a fixing frame and is fixedly connected to a fan blade.

[0018] Preferably, a fixing plate is installed at one end of the support frame, one end of the fixing plate is fixedly connected to a limiting plug, one end of the baffle is provided with a connecting groove, both ends of the water pipe are fixedly connected with a water pipe, and one end of the water pipe is fixedly connected to the fixing frame, and both ends of the fixing frame are provided with water inlets.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. The environmentally friendly dust reduction device for coal mining described in the present invention, when the collected coal blocks are transported by a conveyor belt, drives the spray dust reduction component to extract water flow through the conveyor belt, and sprays it out in atomization through the atomizing nozzle, so as to spray the transported coal blocks for dust reduction, so as to prevent the coal blocks from being transported to the conveyor belt. When a large amount of dust is generated, which affects the working environment and vision of the workers, the power generated by the conveyor belt can be recycled and utilized, and then the recycled power can be used to improve the dust reduction effect of the dust reduction device, and at the same time, the energy saving of the dust reduction device can be improved, thereby solving the problem that when the existing environmentally friendly dust reduction device for coal mining is used to reduce the collected coal during the coal mining process, a water pump is usually used to cooperate with a motor to extract external water flow for atomization and spraying to reduce dust, and the motor and the water pump are used in the coal mine for a long time, and coal ash enters the motor and causes damage, so it needs to be cleaned from time to time, which will result in the need to clean it when the coal mining is stopped, affecting the progress of the coal mining work.

[0021] 2. The coal mining environmental protection dust reduction device described in the present invention, after conveying the coal blocks to the discharge port, discharges the coal blocks onto the guide plate, and uses the weight of the coal blocks to press down the guide plate, and then makes the guide plate drive the first rotating shaft to rotate, and at the same time drives the fixed plate to rotate, and makes the fixed plate drive the torsion spring to twist, thereby opening the discharge port to discharge the coal blocks into the conveying equipment below, and the guide plate uses the weight of the coal blocks to reciprocate to open the discharge port to discharge the coal blocks into the conveying equipment below, which can reduce the situation where the coal blocks fall directly into the conveying equipment below without obstruction and cause dust, and can also prevent the coal blocks from falling directly into the conveying equipment and colliding with each other to generate dust, thereby improving the practicality and convenience of the dust reduction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the structure of the main view of the present invention as a whole;

[0024] Figure 2 It is a schematic diagram of the structure of the present invention when viewed from above;

[0025] Figure 3 It is a structural schematic diagram of the transmission shaft installation of the present invention;

[0026] Figure 4 is a schematic diagram of a half-section structure of a support frame of the present invention;

[0027] Figure 5 It is a schematic diagram of a partial cross-section of the support frame of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the interior of a half-section of a support block of the present invention;

[0029] Figure 7 It is a schematic diagram of the structure of the interior of a half-section of the water conduit of the present invention;

[0030] Figure 8 It is a structural schematic diagram of the fan blade installation of the present invention.

[0031] In the figure: 1, support frame; 2, baffle plate; 3, connecting groove; 4, first dust cover; 5, conveyor belt; 6, fixed plate; 7, fixed frame; 8, base; 9, second dust cover; 10, third dust cover; 11, guide plate; 12, discharge port; 13, fixed block; 14, transmission shaft; 15, transmission bevel gear; 16, driven bevel gear; 17, rotating column; 18, first bevel gear; 19, second bevel gear; 20, connecting rod ; 21. U-shaped rotating block; 22. slide groove; 23. fixed cylinder; 24. water guide pipe; 25. atomizing nozzle; 26. water inlet; 27. swing rod; 28. U-shaped fixing frame; 29. ​​piston; 30. limit plug block; 31. support block; 32. rotating groove; 33. first rotating shaft; 34. fixed plate; 35. torsion spring; 36. second rotating shaft; 37. third bevel gear; 38. fourth bevel gear; 39. fan blade. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1

[0034] like Figures 1 to 8 As shown, a coal mining environmental protection dust reduction device according to an embodiment of the present invention comprises a support frame 1, two baffles 2 are symmetrically installed on both sides of the upper end surface of the support frame 1, a fixing frame 7 is installed on one side of the upper end surface of the support frame 1, a conveyor belt 5 is installed in the inner cavity of the support frame 1, a second rotating shaft 36 is rotatably connected in one side of the support frame 1, one end of the second rotating shaft 36 is fixedly connected to the conveyor belt 5, and a spray dust reduction component is arranged inside the lower end of the fixing frame 7;

[0035] The spray dust suppression assembly includes a plurality of chutes 22 provided inside the lower end surface of the fixed frame 7, the inner cavities of the plurality of chutes 22 are all fixedly connected with a fixed cylinder 23, the lower end of the fixed cylinder 23 is fixedly connected with a water guide pipe 24, a plurality of atomizing nozzles 25 are evenly arranged inside the lower end of the water guide pipe 24, and a one-way valve is arranged inside the inner cavity of the atomizing nozzle 25, and the one-way valve can only be flipped open toward the water spraying port of the atomizing nozzle 25;

[0036] Two bases 8 are fixedly connected to the lower end of the support frame 1, and the two bases 8 are used to be installed on a coal mining machine to cooperate with a drill bit to mine and transport coal.

[0037] Specifically, in the prior art, when a coal mining machine is used to mine coal in a coal stratum in a mine, a conveyor rack is usually installed under the coal mining machine, and then the conveyor rack is used to collect the coal blocks taken by the coal mining machine, and at the same time, the conveyor rack is used to transport the coal blocks to a conveyor belt, and the coal blocks are transported out of the mine through the conveyor belt. When the conveyor rack transports the coal blocks to the conveyor belt, if dust reduction treatment is not performed on the coal blocks, the coal falling on the conveyor belt will generate a large amount of dust, affecting the operating environment and vision of the workers;

[0038] The present invention uses a base 8 to install the support frame 1 on the coal mining machine. When the coal mining machine uses a drill to mine coal, the coal blocks will fall onto the conveyor belt 5, and the conveyor belt 5 will be started at the same time. The conveyor belt 5 is used to transport the coal blocks that fall on it. When the coal blocks are transported to the discharge port 12, external water flow is drawn into the inner cavity of the water pipe 24. The water flow that enters the inner cavity of the water pipe 24 is compressed by pressurized air into the inner cavity of the water pipe 24, so that the water flow in the inner cavity of the water pipe 24 squeezes the one-way valve to open, and then is sprayed out through the atomizing nozzle 25, thereby spraying water mist on the transported coal blocks to reduce dust, and when the coal blocks are collected, During the process, the baffle 2 can be used to block and limit the coal blocks that fall onto the conveyor belt 5, thereby facilitating the smooth transportation of the coal blocks, thereby solving the problem that when the existing coal mining environmental protection dust reduction device uses a coal mining machine to mine the coal rock layer in the mine, a conveyor frame is usually installed under the coal mining machine, and then the conveyor frame is used to collect the coal blocks taken by the coal mining machine, and at the same time, the conveyor frame is used to transport the coal blocks to the conveyor belt, and the coal blocks are transported out of the mine through the conveyor belt. When the conveyor frame transports the coal blocks to the conveyor belt, if the dust reduction treatment is not performed on it, the coal falling on the conveyor belt will generate a lot of dust, affecting the workers' operating environment and vision.

[0039] like Figure 1 , Figure 3 and Figure 7 As shown, a transmission bevel gear 15 is fixedly connected to one end of the second rotating shaft 36, and a first dust cover 4 is installed on both sides of the support frame 1. A rotating column 17 is rotatably connected inside one end of the first dust cover 4, and two driven bevel gears 16 are fixedly connected to both ends of the rotating column 17, and one driven bevel gear 16 is meshedly connected to the transmission bevel gear 15.

[0040] Specifically, in the process of conveying coal blocks, the conveyor belt 5 is used to drive the second rotating shaft 36 to rotate, and the second rotating shaft 36 drives the transmission bevel gear 15 to rotate. At the same time, the transmission bevel gear 15 drives the rotating column 17 to rotate. During the rotation of the rotating column 17, water will be drawn into the inner cavity of the water pipe 24, and then the water will be atomized and sprayed out by the atomizing nozzle 25, so as to spray the transported coal blocks to reduce dust, thereby preventing a large amount of dust from being generated when the coal blocks are transported to the conveyor belt, affecting the workers' operating environment and vision.

[0041] like Figure 1 , Figure 5 and Figure 7 As shown, a transmission shaft 14 is rotatably connected to the interior of the upper end of the first dust cover 4 , first bevel gears 18 are fixedly connected to both ends of the transmission shaft 14 , and the first bevel gear 18 located in the inner cavity of the first dust cover 4 is meshed and connected with the driven bevel gear 16 .

[0042] like Figure 1 , Figure 5 and Figure 7 As shown, the second dust cover 9 is rotatably connected to the outside of both ends of the transmission shaft 14 , the second dust cover 9 is installed with the fixing frame 7 , and the first bevel gear 18 located in the inner cavity of the second dust cover 9 is meshedly connected with the second bevel gear 19 .

[0043] like Figure 1 , Figure 5 and Figure 7 As shown, a third dust cover 10 is installed on the upper end surface of the fixed frame 7, and a plurality of connecting rods 20 are rotatably connected to the inner cavity of the third dust cover 10, and three U-shaped rotating blocks 21 are fixedly connected between the plurality of connecting rods 20, one end of the connecting rod 20 passes through the second dust cover 9 and is fixedly connected to the second bevel gear 19, a fixed block 13 is fixedly connected to one side of the upper end surface of the fixed frame 7, and one end of the connecting rod 20 is rotatably connected to the fixed block 13.

[0044] like Figure 3 , Figure 5 and Figure 7 As shown, the inner cavity of the U-shaped rotating block 21 is rotatably connected to a swing rod 27, one end of the swing rod 27 is rotatably connected to a U-shaped fixing frame 28, and a piston 29 is fixed to the lower end of the U-shaped fixing frame 28, the piston 29 is slidably connected in the inner cavity of the slide groove 22, and one-way valves are provided on both sides of the inner cavity of the water conduit 24.

[0045] Specifically, when the coal blocks are transported by the conveyor belt 5, the conveyor belt 5 drives the driven bevel gear 16 to rotate, and the driven bevel gear 16 meshes with the first bevel gear 18 to rotate, and at the same time drives the transmission shaft 14 to rotate. During the rotation of the transmission shaft 14, the first bevel gear 18 is driven to rotate, and then the second bevel gear 19 is meshed and driven to rotate. At the same time, the second bevel gear 19 drives the connecting rod 20 to rotate, so that the connecting rod 20 rotates the three U-shaped rotating blocks 21, and then the three U-shaped rotating blocks 21 pulls the swing rod 27 to rotate, and during the rotation of the swing rod 27, it pulls the U-shaped fixing frame 28 to slide in the inner cavity of the slide groove 22, and at the same time, the U-shaped fixing frame 28 drives the piston 29 to slide in the inner cavity of the fixing cylinder 23, and during the upward sliding process of the piston 29, the air in the inner cavity of the water pipe 24 is extracted to open the one-way valve, and then the external water flow is drawn into the inner cavity of the water pipe 24, and during the downward sliding process of the piston 29, the air in the inner cavity of the water pipe 24 is squeezed, so that the inner cavity of the water pipe 24 is The water in the inner cavity of the water pipe 24 is pressurized to open the one-way valve in the inner cavity of the atomizing nozzle 25, so that the water is sprayed out through the atomizing nozzle 25 to spray the transported coal blocks to reduce dust, so as to prevent the coal blocks from being transported to the conveyor belt. When a large amount of dust is generated, it affects the workers' operating environment and vision. The power generated by the conveyor belt can be recycled and then the recycled power can be used to improve the dust reduction effect of the dust reduction device, and the energy saving of the dust reduction device can be improved. Thus, the existing coal mining environmental protection dust reduction device solves the problem that when the existing coal mining environmental protection dust reduction device is used to reduce dust on the taken coal during the coal mining process, the water pump is usually used to cooperate with the motor to extract the external water flow for atomization and spraying, so as to reduce dust generated by the transportation of coal blocks. The motor and the water pump are used in the coal mine for a long time, and the motor water pump does not have a dustproof component. If the coal ash enters the motor, it will cause damage, etc. Therefore, it needs to be cleaned from time to time, which will result in the need to clean it when the coal mining is stopped, affecting the progress of the coal mining work.

[0046] Embodiment 2

[0047] like Figures 1 to 7 As shown, another embodiment of the present invention is: a discharge port 12 is provided on one side of the upper end of the support frame 1, two support blocks 31 are symmetrically fixedly connected to one side of the lower end surface of the support frame 1, and a guide plate 11 is rotatably connected between the two support blocks 31.

[0048] like Figures 4 to 6 As shown, a rotating groove 32 is opened inside the support block 31, and a first rotating shaft 33 is rotatably connected to the inner cavity of the rotating groove 32. One end of the first rotating shaft 33 is fixedly connected to the guide plate 11. The first rotating shaft 33 is located outside the inner cavity of the rotating groove 32 and is fixedly connected to a fixed plate 34. A torsion spring 35 is fixedly connected to one side of the fixed plate 34, and one end of the torsion spring 35 is fixedly connected to the inner wall of the rotating groove 32.

[0049] Specifically, after the coal blocks are transported to the discharge port 12, the coal blocks are discharged onto the guide plate 11, and the weight of the coal blocks is used to press down the guide plate 11, and then the guide plate 11 drives the first rotating shaft 33 to rotate, and at the same time drives the fixed plate 34 to rotate, and the fixed plate 34 drives the torsion spring 35 to twist, so as to open the discharge port 12 to discharge the coal blocks into the conveying equipment below, and the guide plate 11 uses the weight of the coal blocks to reciprocate to open the discharge port 12 to discharge the coal blocks into the conveying equipment below, which can reduce the situation where the coal blocks fall directly into the conveying equipment below without obstruction and cause dust, and can also prevent the coal blocks from falling directly into the conveying equipment and colliding with each other to generate dust, thereby improving the practicality and convenience of the dust reduction device.

[0050] like Figure 1 and Figure 8 As shown, a third bevel gear 37 is fixedly connected to the outside of the transmission shaft 14 , and the third bevel gear 37 is meshingly connected to a fourth bevel gear 38 . One end of the fourth bevel gear 38 passes through the fixing frame 7 and is fixedly connected to a fan blade 39 .

[0051] Specifically, after the coal is transported to the discharge port 12, the transmission shaft 14 is driven to rotate through the conveyor belt 5, and the transmission shaft 14 drives the third bevel gear 37 to rotate. At the same time, the third bevel gear 37 engages to drive the fourth bevel gear 38 to rotate. During the rotation of the fourth bevel gear 38, the fan blades 39 are driven to rotate, so that the fan blades 39 are used to blow out convection air, and the convection air blows the dust to be concentrated in the middle of the discharge port 12, and then the atomizing nozzle 25 can be used to spray water flow to absorb the concentrated dust, thereby improving the dust reduction effect.

[0052] like Figure 1 , Figure 4 and Figure 7 As shown, a fixing plate 6 is installed at one end of the support frame 1, and a limiting plug 30 is fixedly connected to one end of the fixing plate 6. A connecting groove 3 is provided at one end of the baffle 2. Both ends of the water pipe 24 are fixedly connected with water delivery pipes, and one end of the water delivery pipe is fixedly connected to the fixing frame 7. Water inlets 26 are provided at both ends of the fixing frame 7.

[0053] Working principle: The support frame 1 is installed on the coal mining machine by using the base 8. When the coal mining machine uses the drill to mine coal, the coal blocks will fall onto the conveyor belt 5, and the conveyor belt 5 is started at the same time. The conveyor belt 5 is used to transport the coal blocks that fall on it. When the coal blocks are transported to the discharge port 12, the external water flow is drawn into the inner cavity of the water pipe 24. The water flow that enters the inner cavity of the water pipe 24 is compressed by pressurized air into the inner cavity of the water pipe 24, so that the water flow in the inner cavity of the water pipe 24 squeezes the one-way valve to open, and then sprays out through the atomizing nozzle 25, thereby spraying water mist on the transported coal blocks to reduce dust. In the process of collecting coal blocks, the baffle 2 can be used to block and limit the coal blocks that fall on the conveyor belt 5, thereby facilitating the smooth transportation of the coal blocks.

[0054] When the taken coal blocks are transported by the conveyor belt 5, the driven bevel gear 16 is driven to rotate by the conveyor belt 5, and the driven bevel gear 16 meshes with the first bevel gear 18 to rotate, and at the same time drives the transmission shaft 14 to rotate. During the rotation of the transmission shaft 14, the first bevel gear 18 is driven to rotate, and then the second bevel gear 19 is meshed and driven to rotate. At the same time, the second bevel gear 19 drives the connecting rod 20 to rotate, so that the connecting rod 20 rotates the three U-shaped rotating blocks 21, and then the three U-shaped rotating blocks 21 pull the swing rod 27 to rotate. During the rotation of the swing rod 27, the U-shaped fixing frame 28 is pulled to slide in the inner cavity of the slide groove 22, and the U-shaped fixing frame 28 drives the piston 29 to slide in the inner cavity of the fixing cylinder 23 , and when the piston 29 slides upward, the air in the inner cavity of the water pipe 24 is extracted to open the one-way valve, and then the external water flow is drawn into the inner cavity of the water pipe 24. When the piston 29 slides downward, the air in the inner cavity of the water pipe 24 is squeezed, so that the inner cavity of the water pipe 24 generates pressure, and at the same time, the water flow in the inner cavity of the water pipe 24 is pressurized to open the one-way valve in the inner cavity of the atomizing nozzle 25, and then the water flow is atomized and sprayed through the atomizing nozzle 25, so as to spray the transported coal blocks to reduce dust, prevent the coal blocks from being transported to the conveyor belt. When a large amount of dust is generated, it affects the workers' operating environment and vision, and can also recycle the power generated by the conveyor belt 5, thereby improving the practicality and energy saving of the dust reduction device;

[0055] After the coal blocks are transported to the discharge port 12, the coal blocks are discharged onto the guide plate 11, and the weight of the coal blocks is used to press down the guide plate 11. Then, the guide plate 11 drives the first rotating shaft 33 to rotate, and at the same time drives the fixed plate 34 to rotate, and the fixed plate 34 drives the torsion spring 35 to twist, so as to open the discharge port 12 to discharge the coal blocks into the conveying equipment below. The guide plate 11 uses the weight of the coal blocks to reciprocately open the discharge port 12 to discharge the coal blocks into the conveying equipment below. This can reduce the situation where the coal blocks fall directly into the conveying equipment below without obstruction and cause dust, and can also prevent the coal blocks from falling directly into the conveying equipment and colliding with each other to generate dust, thereby improving the practicality and convenience of the dust reduction device.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A coal mining environmental protection dust suppression device, characterized by: It comprises a support frame (1), two baffles (2) are symmetrically mounted on both sides of the upper end surface of the support frame (1), a fixing frame (7) is mounted on one side of the upper end surface of the support frame (1), a conveyor belt (5) is mounted in the inner cavity of the support frame (1), a second rotating shaft (36) is rotatably connected to one side of the support frame (1), one end of the second rotating shaft (36) is connected to the conveyor belt (5), and a spray dust reduction component is arranged inside the lower end of the fixing frame (7); The spray dust suppression component comprises a plurality of slide grooves (22) provided inside the lower end surface of the fixed frame (7); the inner cavities of the plurality of slide grooves (22) are all fixedly connected to a fixed cylinder (23); the lower end of the fixed cylinder (23) is fixedly connected to a water guide pipe (24); a plurality of atomizing nozzles (25) are evenly arranged inside the lower end of the water guide pipe (24); and the inner cavity of the atomizing nozzle (25) is provided with a one-way valve; The lower end of the support frame (1) is fixedly connected to two bases (8), and the two bases (8) are used to be installed on a coal mining machine to cooperate with a drill bit to mine and transport coal; A transmission bevel gear (15) is fixedly connected to one end of the second rotating shaft (36), first dust covers (4) are installed on both sides of the support frame (1), a rotating column (17) is rotatably connected inside one end of the first dust cover (4), two driven bevel gears (16) are fixedly connected to both ends of the rotating column (17), and one of the driven bevel gears (16) is meshingly connected to the transmission bevel gear (15); A transmission shaft (14) is rotatably connected to the interior of the upper end of the first dust cover (4), first bevel gears (18) are fixedly connected to both ends of the transmission shaft (14), and the first bevel gear (18) located in the inner cavity of the first dust cover (4) is meshingly connected to the driven bevel gear (16); The second dust cover (9) is rotatably connected to the outside of both ends of the transmission shaft (14), the second dust cover (9) is mounted on the fixing frame (7), and the first bevel gear (18) located in the inner cavity of the second dust cover (9) is meshedly connected to the second bevel gear (19); A third dust cover (10) is installed on the upper end surface of the fixing frame (7); a plurality of connecting rods (20) are rotatably connected to the inner cavity of the third dust cover (10); and three U-shaped rotating blocks (21) are fixedly connected between the plurality of connecting rods (20); one end of the connecting rod (20) passes through the second dust cover (9) and is fixedly connected to the second bevel gear (19); a fixing block (13) is fixedly connected to one side of the upper end surface of the fixing frame (7); and one end of the connecting rod (20) is rotatably connected to the fixing block (13); The inner cavity of the U-shaped rotating block (21) is rotatably connected to a swing rod (27), one end of the swing rod (27) is rotatably connected to a U-shaped fixing frame (28), and a piston (29) is fixedly connected to the lower end of the U-shaped fixing frame (28), and the piston (29) is slidably connected to the inner cavity of the slide groove (22), and both sides of the inner cavity of the water guide pipe (24) are provided with one-way valves.

2. The environmentally friendly dust suppression device for coal mining according to claim 1, characterized in that: A material discharge port (12) is provided on one side of the upper end of the support frame (1), two support blocks (31) are symmetrically fixedly connected to one side of the lower end surface of the support frame (1), and a material guide plate (11) is rotatably connected between the two support blocks (31).

3. The environmentally friendly dust suppression device for coal mining according to claim 2 is characterized by: A rotating groove (32) is provided inside the support block (31), and a first rotating shaft (33) is rotatably connected to the inner cavity of the rotating groove (32), one end of the first rotating shaft (33) is fixedly connected to the material guide plate (11), and the first rotating shaft (33) is located outside the inner cavity of the rotating groove (32) and is fixedly connected to a fixed disk (34), one side of the fixed disk (34) is fixedly connected to a torsion spring (35), and one end of the torsion spring (35) is fixedly connected to the inner wall of the rotating groove (32).

4. The environmentally friendly dust suppression device for coal mining according to claim 1, characterized in that: The transmission shaft (14) is externally fixedly connected to a third bevel gear (37), the third bevel gear (37) is meshingly connected to a fourth bevel gear (38), and one end of the fourth bevel gear (38) passes through the fixing frame (7) and is fixedly connected to a fan blade (39).

5. The environmentally friendly dust suppression device for coal mining according to claim 1, characterized in that: A fixing plate (6) is mounted on one end of the support frame (1), and a limiting plug block (30) is fixedly connected to one end of the fixing plate (6). A connecting groove (3) is provided on one end of the baffle plate (2). Both ends of the water guide pipe (24) are fixedly connected to a water delivery pipe, and one end of the water delivery pipe is fixedly connected to the fixing frame (7). Both ends of the fixing frame (7) are provided with water inlets (26).

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