Dust reduction coal washer and method of use

Abstract

The application discloses a dust-reducing coal washer and a use method thereof, and belongs to the technical field of coal washers. The dust-reducing coal washer comprises a coal washer hopper, a feeding port is formed in the side of the coal washer hopper, and the coal washer hopper further comprises a material shell, the material shell is fixedly arranged on the upper side of the coal washer hopper, a spraying assembly for dust reduction is arranged in the material shell, a water storage tank for providing water for the spraying assembly is arranged on the outer side of the coal washer hopper, a fan assembly is arranged in the material shell and located on the upper side of the spraying assembly, a dust collecting hopper is arranged on the side of the material shell away from the fan assembly, and a dust reduction pipe is arranged between the material shell and the water storage tank. The working range of the spray head is increased, the dust can be better adsorbed, the generation and scattering of dust in the coal cleaning process are reduced, dust particles in the air can be effectively collected and filtered, the cleanliness of the working environment and the air quality are improved, and therefore, a good dust reduction effect is achieved.

Description

Technical Field

[0001] This invention relates to the field of coal washing machine technology, and in particular to a dust-reducing coal washing machine and its usage method. Background Technology

[0002] Coal washing separates raw coal of different compositions and specific gravities into different grades by the impact of water flow, removing dust and waste rock, and reducing ash and sulfur content. Coal washing is an essential step in coal processing. Coal after washing is called refined coal. In addition to achieving environmental protection goals, coal washing can also improve the utilization rate of coal.

[0003] When coal falls into the coal washing machine, coal ash will scatter. Generally, the scattered coal ash is sprayed by nozzles. However, the spray range of the nozzles is limited, and certain blind spots will still be formed, resulting in poor dust suppression in some areas, and the scattered coal ash cannot be effectively collected and treated. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a dust-reducing coal washing machine and its usage method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A dust-reducing coal washing machine includes a coal washing machine hopper, wherein a feed inlet is provided on the side of the coal washing machine hopper, and further includes:

[0007] The material shell is fixed on the upper side of the coal washing machine hopper. A dust suppression spraying component is installed inside the material shell, and a water storage tank is installed on the outside of the coal washing machine hopper to provide water for the spraying component.

[0008] A fan assembly is disposed inside the material shell and positioned above the spraying assembly. A dust collection hopper is provided on the side of the material shell away from the fan assembly.

[0009] A dust-collecting pipe is installed between the material shell and the water storage tank. The water storage tank is equipped with a filter element for filtering coal ash, and the dust-collecting pipe is equipped with an ash removal component.

[0010] A first transmission component is provided between the fan assembly and the spraying assembly, and a second transmission component is provided between the fan assembly and the ash removal assembly.

[0011] Preferably, the spraying assembly includes a rotating tube rotatably connected inside the material tank and nozzles evenly distributed along the axial direction of the rotating tube. A torsion spring for driving the rotating tube to reset and rotate is provided inside the material tank. A water pump is provided on the water storage tank, and a water guide pipe connected to the rotating tube is connected to the water pump.

[0012] Preferably, the rotating pipe includes a main body rotatably connected to the material shell, and connecting pipes and elastic telescopic rods respectively disposed at both ends of the main body. The water guide pipe and the connecting pipe are interconnected. The nozzle is disposed on the main body. A support plate is fixedly provided on the inner wall of the material shell. The elastic telescopic rod is rotatably connected to the support plate.

[0013] Preferably, the blower assembly includes a drive motor fixed on the material shell, a drive shaft connected to the output shaft of the drive motor and rotatably connected inside the material shell, and blades evenly arranged on the drive shaft in a circular pattern. The first transmission assembly includes an incomplete gear fixed on the drive shaft. The main body is provided with a driven gear that intermittently meshes with the incomplete gear. A connecting plate is fixed on the outer wall of the material shell. A fixing block is fixed on the connecting plate that moves against the connecting pipe. The side of the fixing block that abuts against the connecting pipe is provided with an extrusion slope.

[0014] Preferably, the dust collection pipe includes a bent pipe connected to the dust collection hopper, a water storage pipe disposed at the bottom of the bent pipe, and a movable pipe rotatably connected to the water storage pipe. The dust removal component is disposed inside the movable pipe, and a water storage tank is formed between the outer wall of the movable pipe and the inner wall of the water storage pipe.

[0015] Preferably, the dust removal assembly includes a rotating rod that is rotatably connected to the bent tube. The bottom of the rotating rod is fixedly connected to the movable tube via a connecting rod. A counterweight ring is slidably connected to the outside of the rotating rod. An elastic telescopic tube is fixedly mounted on the counterweight ring. An arc-shaped scraper that abuts against the inner wall of the movable tube is connected to the end of the elastic telescopic tube away from the counterweight ring. A guide rod that is slidably connected to the counterweight ring is fixedly mounted inside the bent tube.

[0016] Preferably, the second transmission assembly includes a support fixed to the top of the material shell, a reciprocating screw rotatably connected to the support, a sleeve threadedly connected to the reciprocating screw, and a pull rope fixed to the sleeve. The end of the pull rope away from the sleeve passes through a bent tube, a counterweight ring, and an elastic telescopic tube in sequence and is connected to an arc-shaped scraper. Both the reciprocating screw and the drive shaft are provided with synchronous pulleys, and a synchronous belt is provided between the two synchronous pulleys. The reciprocating screw is provided with a main bevel gear, and the rotating rod is provided with a secondary bevel gear that meshes with the main bevel gear.

[0017] Preferably, the outer wall of the water storage pipe is connected to a working pipe via a support rod, a piston is slidably connected inside the working pipe, a sliding rod is provided on the top of the piston, a first connecting plate is provided at the end of the reciprocating screw, a second connecting plate is rotatably connected to the first connecting plate, the end of the second connecting plate away from the first connecting plate is movably connected to the sliding rod, an inlet valve and an outlet valve are provided on the working pipe, an outlet pipe connected to the water storage pipe is connected to the working pipe via the outlet valve, and an inlet pipe connected to the bottom of the water storage tank is connected to the working pipe via the inlet valve.

[0018] Preferably, the filter element includes two inclined plates disposed at an angle within the water storage tank and a filter cloth disposed between the two inclined plates. A support rod for supporting the filter cloth is disposed between the two inclined plates. The filter cloth has an arc-shaped structure that is higher in the middle and lower on both sides, and the height of the filter cloth is higher than the height of the inclined plates.

[0019] This invention also discloses a method for using a dust-reducing coal washing machine, comprising the following steps:

[0020] S1: Raw coal is introduced through the feed inlet of the coal washing machine hopper. When the raw coal enters the coal washing machine hopper, a large amount of coal ash is generated. The water pump is controlled to run. The water pump introduces the water in the water storage tank into the nozzle through the water guide pipe. The water flow sprayed from the nozzle performs dust suppression on the scattered coal ash.

[0021] S2: Control the operation of the drive motor. The output shaft of the drive motor drives the drive shaft and the blades on the outside of the drive shaft to rotate. The blades blow the coal ash that flies to the upper side of the spraying component, so that the coal ash flying upward enters the dust collection hopper into the dust settling pipe.

[0022] S3: When the drive shaft rotates, it drives the incomplete gear to rotate. The incomplete gear and the driven gear mesh intermittently. When the incomplete gear and the driven gear are meshed, the main body drives the nozzle to rotate. When the incomplete gear is not meshed with the driven gear, the main body is reset and rotated under the action of the torsion spring, so that the main body drives the nozzle to swing back and forth to spray, thereby increasing the dust suppression range of the nozzle spraying back and forth.

[0023] When the main body rotates, the squeezing inclined surface of the connecting pipe abuts against the squeezing inclined surface of the fixed block. The connecting pipe is subjected to force, which drives the main body to move, causing the elastic telescopic rod to passively contract. This causes the main body to drive the nozzle to swing left and right, further increasing the dust suppression range of the nozzle and reducing the dust suppression blind zone.

[0024] S4: When the drive shaft rotates, it drives the reciprocating screw to rotate through the synchronous pulley and synchronous belt. When the reciprocating screw rotates, it drives the first connecting plate to rotate. The first connecting plate drives the slide rod to move up and down reciprocally through the second connecting plate. This causes the slide rod to drive the piston to move up and down reciprocally in the working tube. When the piston moves up in the working tube, the working tube draws water from the water storage tank through the liquid inlet pipe. When the piston moves down in the working tube, the working tube discharges the drawn water into the water storage tank between the water storage pipe and the moving pipe through the liquid outlet pipe. When there is too much water in the water storage tank, it will overflow into the moving pipe and form a water curtain on the inner wall of the moving pipe. This prevents coal ash from adhering to the inner wall of the moving pipe and also reduces the dust of the coal ash. The coal ash enters the water storage tank with the water curtain and is intercepted and filtered by the filter in the water storage tank.

[0025] S5: When the reciprocating screw rotates, the main bevel gear meshes with the secondary bevel gear on the rotating rod, and the secondary bevel gear drives the rotating rod to rotate. The rotating rod drives the movable tube to rotate through the connecting rod, so that the movable tube rotates relative to the arc-shaped scraper.

[0026] When the reciprocating screw rotates, the sleeve moves back and forth along the axis of the reciprocating screw. When the sleeve moves to the right on the reciprocating screw, the sleeve no longer applies tension to the arc-shaped scraper through the pull rope. The arc-shaped scraper abuts against the inner wall of the moving tube. The vertically moving arc-shaped scraper scrapes off the coal ash that is difficult to fall off and adheres to the inner wall of the rotating moving tube. When the sleeve moves to the left on the reciprocating screw, the sleeve applies tension to the arc-shaped scraper through the pull rope. The arc-shaped scraper squeezes the elastic telescopic tube and moves closer to the counterweight ring. The arc-shaped scraper no longer abuts against the inner wall of the moving tube. At this time, the left-moving sleeve drives the counterweight ring to move upward through the pull rope, so that the arc-shaped scraper moves to the upper side of the moving tube to scrape off the coal ash adhering to the inner wall of the moving tube again.

[0027] Compared with the prior art, the present invention provides a dust-reducing coal washing machine and its usage method, which has the following beneficial effects:

[0028] 1. The dust-reducing coal washing machine and its usage method, through the operation of the fan assembly driving the spraying assembly, can increase the working range of the nozzles, can play a better role in adsorbing dust, which is conducive to reducing the generation and dispersion of dust during coal washing, effectively collecting and filtering dust particles in the air, improving the cleanliness of the working environment and air quality, thereby achieving a good dust reduction effect.

[0029] 2. The dust-reducing coal washing machine and its operation method: the piston is driven by the sliding rod to move up and down reciprocally inside the working tube. When the piston moves up inside the working tube, the working tube draws water from the water storage tank through the liquid inlet pipe. When the piston moves down inside the working tube, the working tube discharges the drawn water into the water storage tank between the water storage pipe and the movable pipe through the liquid outlet pipe. When there is too much water in the water storage tank, it will overflow into the movable pipe, forming a water curtain on the inner wall of the movable pipe. This prevents coal ash from adhering to the inner wall of the movable pipe while reducing the dust of coal ash, ensuring the dust reduction effect.

[0030] 3. The dust-reducing coal washing machine and its usage method utilize the arc-shaped scraper to scrape off coal ash that is difficult to fall off the moving pipe when it moves downward and abuts against the inner wall of the moving pipe. When the arc-shaped scraper moves upward, it does not abut against the inner wall of the moving pipe, thus preventing the inner wall of the moving pipe from being scraped to the water storage tank and then re-adhering to the inner wall of the moving pipe with the water flow, thereby ensuring the cleaning effect and efficiency of coal ash. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0032] Figure 2 For the present invention Figure 1 A partially enlarged structural diagram of section A in the middle;

[0033] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0034] Figure 4 For the present invention Figure 3 A partially enlarged structural diagram of section B in the middle;

[0035] Figure 5 This is a cross-sectional structural diagram of the present invention;

[0036] Figure 6 For the present invention Figure 5 A partially enlarged structural diagram of section C in the middle;

[0037] Figure 7 For the present invention Figure 5 A partially enlarged structural diagram of section D in the middle;

[0038] Figure 8 For the present invention Figure 5 A magnified schematic diagram of a portion of the central E section;

[0039] Figure 9 For the present invention Figure 5 A partially enlarged structural diagram of section F in the middle;

[0040] Figure 10 This is a schematic diagram of the external structure of the counterweight ring of the present invention;

[0041] Figure 11 This is a schematic cross-sectional view of the filter element of the present invention.

[0042] In the diagram: 1. Coal washing machine hopper; 101. Feed inlet; 2. Material shell; 201. Support plate; 3. Water storage tank; 4. Dust collection hopper; 5. Dust settling pipe; 501. Bending pipe; 5011. Guide rod; 502. Water storage pipe; 503. Movable pipe; 6. Filter element; 601. Inclined plate; 602. Filter cloth; 603. Support rod; 7. Rotating pipe; 701. Main body; 7011. Nozzle; 7012. Driven gear; 702. Connecting pipe; 703. Elastic telescopic rod; 8. Water pump; 801. Water guide pipe; 9. Drive motor; 901 10. Drive shaft; 9011. Incomplete gear; 902. Blade; 10. Connecting plate; 1001. Fixing block; 11. Rotating rod; 111. Secondary bevel gear; 12. Counterweight ring; 121. Elastic telescopic tube; 122. Arc-shaped scraper; 13. Support; 131. Reciprocating screw; 1311. First connecting plate; 1312. Second connecting plate; 1313. Main bevel gear; 132. Sleeve; 133. Pull rope; 14. Synchronous pulley; 15. Working tube; 151. Piston; 152. Slide rod; 153. Liquid outlet tube; 154. Liquid inlet tube. Detailed Implementation

[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0044] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] Example 1: Refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 A dust-reducing coal washing machine includes a coal washing machine hopper 1, with a feed inlet 101 on the side of the hopper 1, and further includes:

[0046] The material shell 2 is fixed on the upper side of the coal washing machine hopper 1. The material shell 2 is equipped with a spraying component for dust suppression. The outer side of the coal washing machine hopper 1 is equipped with a water storage tank 3 to provide water for the spraying component.

[0047] The fan assembly is installed inside the material shell 2 and placed above the spraying assembly. A dust collection hopper 4 is provided on the side of the material shell 2 away from the fan assembly.

[0048] Dust collection pipe 5 is installed between material shell 2 and water storage tank 3. Water storage tank 3 is equipped with filter element 6 for filtering coal ash. Dust collection pipe 5 is equipped with ash removal component.

[0049] The fan assembly and the spraying assembly are connected by a first transmission assembly, and the fan assembly and the ash removal assembly are connected by a second transmission assembly.

[0050] Specifically, raw coal is introduced through the feed inlet 101 of the coal washing machine hopper 1. When the raw coal enters the coal washing machine hopper 1, a large amount of coal ash is generated. The operation of the spraying component is controlled, and the water flow sprayed by the spraying component performs dust suppression on the scattered coal ash. The fan component blows the coal ash scattered to the upper side of the spraying component, so that the upward-scattering coal ash enters the dust collection hopper 4 into the dust suppression pipe 5. When the fan component is running, it drives the spraying component to work, which can increase the working range of the spraying component and play a better role in adsorbing dust. This helps to reduce the generation and scattering of dust during the coal washing process, effectively collect and filter dust particles in the air, improve the cleanliness of the working environment and air quality, and thus achieve a good dust suppression effect.

[0051] Example 2: Refer to Figure 1 , Figure 3 and Figure 5A dust-reducing coal washing machine, based on embodiment 1, further includes a spraying assembly comprising a rotating pipe 7 rotatably connected within a material shell 2 and nozzles 7011 equidistantly distributed along the axial direction of the rotating pipe 7. A torsion spring for driving the rotating pipe 7 to reset rotation is provided inside the material shell 2. A water pump 8 is provided on a water storage tank 3, and a water guide pipe 801 connected to the rotating pipe 7 is connected to the water pump 8.

[0052] Specifically, raw coal is introduced through the feed inlet 101 of the coal washing machine hopper 1. When the raw coal enters the coal washing machine hopper 1, a large amount of coal ash is generated. The water pump 8 is controlled to run. The water pump 8 introduces the water in the water storage tank 3 into the nozzle 7011 through the water guide pipe 801. The water flow sprayed from the nozzle 7011 performs dust suppression on the scattered coal ash.

[0053] Example 3: Reference Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 6 and Figure 7 A dust-reducing coal washing machine, based on embodiment 2, further includes a rotating pipe 7 comprising a main pipe 701 rotatably connected to the material shell 2, and connecting pipes 702 and elastic telescopic rods 703 respectively disposed at both ends of the main pipe 701. A water guide pipe 801 is connected to the connecting pipes 702. A nozzle 7011 is disposed on the main pipe 701. A support plate 201 is fixedly disposed on the inner wall of the material shell 2. The elastic telescopic rod 703 is rotatably connected to the support plate 201.

[0054] Furthermore, the blower assembly includes a drive motor 9 fixed on the material shell 2, a drive shaft 901 connected to the output shaft of the drive motor 9 and rotatably connected inside the material shell 2, and blades 902 evenly arranged on the drive shaft 901 in a circular pattern. The first transmission assembly includes an incomplete gear 9011 fixed on the drive shaft 901. A driven gear 7012 that intermittently meshes with the incomplete gear 9011 is provided on the main body 701. A connecting plate 10 is fixed on the outer wall of the material shell 2. A fixing block 1001 that moves against the connecting pipe 702 is fixed on the connecting plate 10. The side of the fixing block 1001 that abuts against the connecting pipe 702 is provided with an extrusion slope.

[0055] Specifically, when the fan assembly is running, the drive motor 9 is controlled to operate. The output shaft of the drive motor 9 drives the drive shaft 901 and the blades 902 on the outer side of the drive shaft 901 to rotate. The blades 902 blow the coal ash scattered to the upper side of the spray assembly, causing the upward-scattering coal ash to enter the dust collection hopper 4 into the dust settling pipe 5. When the drive shaft 901 rotates, it drives the incomplete gear 9011 to rotate. The incomplete gear 9011 intermittently meshes with the driven gear 7012. When the incomplete gear 9011 and the driven gear 7012 are meshing, the main body 701 drives the nozzle 7011 to rotate. When not engaged with the driven gear 7012, the main body 701 rotates back to its original position under the action of the torsion spring, causing the main body 701 to drive the nozzle 7011 to swing back and forth and spray, thereby increasing the dust suppression range of the nozzle 7011. When the main body 701 rotates, the pressing slope of the connecting pipe 702 abuts against the pressing slope of the fixed block 1001. The connecting pipe 702 is forced to move the main body 701, causing the elastic telescopic rod 703 to passively contract. This causes the main body 701 to drive the nozzle 7011 to swing left and right, further increasing the dust suppression range of the nozzle 7011, reducing the dust suppression blind zone, and improving the dust suppression effect.

[0056] Example 4: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 , Figure 9 and Figure 10 A dust-reducing coal washing machine, based on embodiment 3, further includes a dust-reducing pipe 5 comprising a bent pipe 501 connected to a dust collection hopper 4, a water storage pipe 502 disposed at the bottom of the bent pipe 501, and a movable pipe 503 rotatably connected to the water storage pipe 502. An ash removal component is disposed inside the movable pipe 503, and a water storage tank is formed between the outer wall of the movable pipe 503 and the inner wall of the water storage pipe 502.

[0057] Furthermore, the dust removal assembly includes a rotating rod 11 rotatably connected to the bent tube 501. The bottom of the rotating rod 11 is fixedly connected to the movable tube 503 via a connecting rod. A counterweight ring 12 is slidably connected to the outside of the rotating rod 11. An elastic telescopic tube 121 is fixedly mounted on the counterweight ring 12. An arc-shaped scraper 122 that abuts against the inner wall of the movable tube 503 is connected to the end of the elastic telescopic tube 121 away from the counterweight ring 12. A guide rod 5011 that is slidably connected to the counterweight ring 12 is fixedly mounted inside the bent tube 501.

[0058] Furthermore, the second transmission assembly includes a support 13 fixed to the top of the shell 2, a reciprocating screw 131 rotatably connected to the support 13, a sleeve 132 threadedly connected to the reciprocating screw 131, and a pull rope 133 fixedly connected to the sleeve 132. The end of the pull rope 133 away from the sleeve 132 passes through the bending tube 501, the counterweight ring 12, and the elastic telescopic tube 121 in sequence and is connected to the arc-shaped scraper 122. Both the reciprocating screw 131 and the drive shaft 901 are provided with synchronous pulleys 14, and a synchronous belt is provided between the two synchronous pulleys 14. The reciprocating screw 131 is provided with a main bevel gear 1313, and the rotating rod 11 is provided with a secondary bevel gear 111 that meshes with the main bevel gear 1313.

[0059] Furthermore, the outer wall of the water storage pipe 502 is connected to the working pipe 15 via a support rod. A piston 151 is slidably connected inside the working pipe 15. A slide rod 152 is provided on the top of the piston 151. A first connecting plate 1311 is provided at the end of the reciprocating screw 131. A second connecting plate 1312 is rotatably connected to the first connecting plate 1311. The end of the second connecting plate 1312 away from the first connecting plate 1311 is movably connected to the slide rod 152. An inlet valve and an outlet valve are provided on the working pipe 15. The working pipe 15 is connected to an outlet pipe 153 connected to the water storage pipe 502 via the outlet valve. The working pipe 15 is connected to an inlet pipe 154 connected to the bottom of the water storage tank 3 via the inlet valve.

[0060] Specifically, when the drive shaft 901 rotates, it drives the reciprocating screw 131 to rotate via the synchronous pulley 14 and the synchronous belt. When the reciprocating screw 131 rotates, it drives the first connecting plate 1311 to rotate. The first connecting plate 1311 drives the slide rod 152 to move up and down reciprocally via the second connecting plate 1312. This causes the slide rod 152 to drive the piston 151 to move up and down reciprocally within the working tube 15. When the piston 151 moves upward within the working tube 15, the working tube 15 draws water from the storage tube through the liquid inlet pipe 154. When piston 151 moves down in working pipe 15, the water in tank 3 is discharged into water storage tank between water storage pipe 502 and moving pipe 503 through liquid outlet pipe 153. When there is too much water in the water storage tank, it will overflow into moving pipe 503, forming a water curtain on the inner wall of moving pipe 503. This prevents coal ash from adhering to the inner wall of moving pipe 503 and also reduces coal ash dust. Coal ash enters water storage tank 3 with the water curtain and is intercepted and filtered by filter element 6 in water storage tank 3.

[0061] When the reciprocating screw 131 rotates, the main bevel gear 1313 meshes with the secondary bevel gear 111 on the rotating rod 11, driving the rotating rod 11 to rotate. The rotating rod 11, through a connecting rod, drives the movable tube 503 to rotate, causing the movable tube 503 to rotate relative to the arc-shaped scraper 122. When the reciprocating screw 131 rotates, the sleeve 132 reciprocates along the axial direction of the reciprocating screw 131. When the sleeve 132 moves to the right on the reciprocating screw 131, it no longer applies tension to the arc-shaped scraper 122 through the pull rope 133. The arc-shaped scraper 122 abuts against the inner wall of the movable tube 503. The vertically downward-moving arc-shaped scraper 122 scrapes away the coal ash that is difficult to fall off and adheres to the inner wall of the rotating movable tube 503. 2. When the reciprocating screw 131 moves to the left, the sleeve 132 applies tension to the arc-shaped scraper 122 through the pull rope 133. The arc-shaped scraper 122 squeezes the elastic telescopic tube 121 and moves closer to the counterweight ring 12. The arc-shaped scraper 122 no longer abuts against the inner wall of the movable tube 503, avoiding the arc-shaped scraper 122 abutting against the inner wall of the movable tube 503 when it moves upward. This causes the inner wall of the movable tube 503 to be scraped to the water storage tank and then re-attached to the inner wall of the movable tube 503 with the water flow, thereby ensuring the cleaning effect and efficiency of the coal ash. The left-moving sleeve 132 drives the counterweight ring 12 to move upward through the pull rope 133, causing the arc-shaped scraper 122 to move to the upper side of the movable tube 503 to scrape off the coal ash adhering to the inner wall of the movable tube 503 again.

[0062] Example 5: Refer to Figure 5 and Figure 11 A dust-reducing coal washing machine, based on embodiment 4, further includes a filter element 6 comprising two inclined plates 601 inclinedly disposed in a water storage tank 3 and a filter cloth 602 disposed between the two inclined plates 601. A support rod 603 for supporting the filter cloth 602 is disposed between the two inclined plates 601. The filter cloth 602 has an arc-shaped structure that is higher in the middle and lower on both sides, and the height of the filter cloth 602 is higher than the height of the inclined plates 601.

[0063] Specifically, when the coal ash falls into the water storage tank 3 with the water flow, the filter cloth 602 intercepts the coal ash in the water. The filter cloth 602 is arc-shaped and higher than the inclined plates 601 on both sides, which makes it easier for the falling water flow to impact the coal ash on the filter cloth 602. The intercepted coal ash slides down the arc-shaped filter cloth 602 to the inclined plates 601 on both sides. The support rod 603 can provide auxiliary support for the filter cloth 602. The water after filtering the coal ash can be used by the spraying component.

[0064] This invention also discloses a method for using a dust-reducing coal washing machine, comprising the following steps:

[0065] S1: Raw coal is introduced through the feed inlet 101 of the coal washing machine hopper 1. When the raw coal enters the coal washing machine hopper 1, a large amount of coal ash is generated. The water pump 8 is controlled to run. The water pump 8 introduces the water in the water storage tank 3 into the nozzle 7011 through the water guide pipe 801. The water flow sprayed from the nozzle 7011 performs dust suppression work on the scattered coal ash.

[0066] S2: Control the operation of drive motor 9. The output shaft of drive motor 9 drives drive shaft 901 and blade 902 on the outside of drive shaft 901 to rotate. Blade 902 blows the coal ash scattered to the upper side of the spraying component, so that the upward-scattering coal ash enters the dust collection hopper 4 into the dust settling pipe 5.

[0067] S3: When the drive shaft 901 rotates, it drives the incomplete gear 9011 to rotate. The incomplete gear 9011 and the driven gear 7012 mesh intermittently. When the incomplete gear 9011 and the driven gear 7012 are meshed, the main body 701 drives the nozzle 7011 to rotate. When the incomplete gear 9011 is not meshed with the driven gear 7012, the main body 701 is reset and rotated under the action of the torsion spring, so that the main body 701 drives the nozzle 7011 to swing back and forth to spray, thereby increasing the dust suppression range of the nozzle 7011 spraying back and forth.

[0068] When the main body 701 rotates, the pressing slope of the connecting pipe 702 abuts against the pressing slope of the fixed block 1001. The connecting pipe 702 is forced to move the main body 701, causing the elastic telescopic rod 703 to passively contract. This causes the main body 701 to drive the nozzle 7011 to swing left and right, further increasing the dust suppression range of the nozzle 7011 and reducing the dust suppression blind zone.

[0069] S4: When the drive shaft 901 rotates, it drives the reciprocating screw 131 to rotate via the synchronous pulley 14 and the synchronous belt. When the reciprocating screw 131 rotates, it drives the first connecting plate 1311 to rotate. The first connecting plate 1311 drives the slide rod 152 to move up and down reciprocally via the second connecting plate 1312. This causes the slide rod 152 to drive the piston 151 to move up and down reciprocally within the working tube 15. When the piston 151 moves upward within the working tube 15, the working tube 15 draws water from the storage tank through the inlet pipe 154. When piston 151 moves down in working pipe 15, the working pipe 15 discharges the extracted water into the water storage tank between water storage pipe 502 and moving pipe 503 through liquid outlet pipe 153. When there is too much water in the water storage tank, it will overflow into moving pipe 503, forming a water curtain on the inner wall of moving pipe 503. This prevents coal ash from adhering to the inner wall of moving pipe 503 and also reduces the dust of coal ash. The coal ash enters water storage tank 3 with the water curtain and is intercepted and filtered by filter element 6 in water storage tank 3.

[0070] S5: When the reciprocating screw 131 rotates, the main bevel gear 1313 meshes with the secondary bevel gear 111 on the rotating rod 11. The secondary bevel gear 111 drives the rotating rod 11 to rotate. The rotating rod 11 drives the movable tube 503 to rotate through the connecting rod, so that the movable tube 503 rotates relative to the arc-shaped scraper 122.

[0071] When the reciprocating screw 131 rotates, the sleeve 132 reciprocates along the axial direction of the reciprocating screw 131. When the sleeve 132 moves to the right on the reciprocating screw 131, the sleeve 132 no longer applies tension to the arc-shaped scraper 122 through the pull rope 133. The arc-shaped scraper 122 abuts against the inner wall of the movable tube 503. The vertically downward-moving arc-shaped scraper 122 scrapes off the coal ash that is difficult to fall off and adheres to the inner wall of the rotating movable tube 503. The sleeve 132 moves along the reciprocating screw 131. When the sleeve 132 moves to the left, it applies a pulling force to the arc-shaped scraper 122 through the pull rope 133. The arc-shaped scraper 122 squeezes the elastic telescopic tube 121 and moves closer to the counterweight ring 12. The arc-shaped scraper 122 no longer abuts against the inner wall of the movable tube 503. At this time, the sleeve 132, which moves to the left, drives the counterweight ring 12 to move upward through the pull rope 133, so that the arc-shaped scraper 122 moves to the upper side of the movable tube 503 and scrapes off the coal ash adhering to the inner wall of the movable tube 503 again.

[0072] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A dust-reducing coal washing machine, comprising a coal washing machine hopper (1), wherein a feed inlet (101) is provided on the side of the coal washing machine hopper (1), characterized in that, Also includes: The material shell (2) is fixed on the upper side of the coal washing machine hopper (1). The material shell (2) is equipped with a dust suppression spraying component. The outer side of the coal washing machine hopper (1) is equipped with a water storage tank (3) to provide water for the spraying component. A fan assembly is provided inside the material shell (2) and placed on the upper side of the spraying assembly. A dust collection hopper (4) is provided on the side of the material shell (2) away from the fan assembly. Dust collection pipe (5), the dust collection pipe (5) is set between the material shell (2) and the water storage tank (3), the water storage tank (3) is provided with a filter element (6) for filtering coal ash, and the dust collection pipe (5) is provided with an ash removal component; The dust collection pipe (5) includes a bent pipe (501) connected to the dust collection hopper (4), a water storage pipe (502) located at the bottom of the bent pipe (501), and a movable pipe (503) rotatably connected to the water storage pipe (502). The dust removal component is located inside the movable pipe (503), and a water storage tank is formed between the outer wall of the movable pipe (503) and the inner wall of the water storage pipe (502). The dust removal assembly includes a rotating rod (11) rotatably connected to the bent tube (501). The bottom of the rotating rod (11) is fixedly connected to the movable tube (503) via a connecting rod. A counterweight ring (12) is slidably connected to the outside of the rotating rod (11). An elastic telescopic tube (121) is fixedly mounted on the counterweight ring (12). An arc-shaped scraper (122) that abuts against the inner wall of the movable tube (503) is connected to one end of the elastic telescopic tube (121) away from the counterweight ring (12). A guide rod (5011) that is slidably connected to the counterweight ring (12) is fixedly mounted inside the bent tube (501). A first transmission component is provided between the fan assembly and the spraying assembly, and a second transmission component is provided between the fan assembly and the ash removal assembly. The second transmission assembly includes a support (13) fixed on the top of the shell (2), a reciprocating screw (131) rotatably connected to the support (13), a sleeve (132) threadedly connected to the reciprocating screw (131), and a pull rope (133) fixedly connected to the sleeve (132). The end of the pull rope (133) away from the sleeve (132) passes through the bending tube (501), the counterweight ring (12), the elastic telescopic tube (121) in sequence and is connected to the arc-shaped scraper (122). Both the reciprocating screw (131) and the drive shaft (901) are provided with synchronous pulleys (14). A synchronous belt is provided between the two synchronous pulleys (14). The reciprocating screw (131) is provided with a main bevel gear (1313), and the rotating rod (11) is provided with a secondary bevel gear (111) meshing with the main bevel gear (1313). The outer wall of the water storage pipe (502) is connected to a working pipe (15) via a support rod. A piston (151) is slidably connected inside the working pipe (15). A slide rod (152) is provided on the top of the piston (151). A first connecting plate (1311) is provided at the end of the reciprocating screw (131). A second connecting plate (1312) is rotatably connected to the first connecting plate (1311). The end of the second connecting plate (1312) away from the first connecting plate (1311) is movably connected to the slide rod (152). An inlet valve and an outlet valve are provided on the working pipe (15). The working pipe (15) is connected to an outlet pipe (153) connected to the water storage pipe (502) via the outlet valve. The working pipe (15) is connected to an inlet pipe (154) connected to the bottom of the water storage tank (3) via the inlet valve.

2. The dust-reducing coal washing machine according to claim 1, characterized in that, The spraying assembly includes a rotating tube (7) rotatably connected in the material shell (2) and nozzles (7011) equidistantly distributed along the axial direction of the rotating tube (7). A torsion spring for driving the rotating tube (7) to reset and rotate is provided in the material shell (2). A water pump (8) is provided on the water storage tank (3). A water guide pipe (801) connected to the rotating tube (7) is connected to the water pump (8).

3. A dust-reducing coal washing machine according to claim 2, characterized in that, The rotating pipe (7) includes a main pipe (701) rotatably connected to the material shell (2) and connecting pipes (702) and elastic telescopic rods (703) respectively disposed at both ends of the main pipe (701). The water guide pipe (801) is connected to the connecting pipe (702). The nozzle (7011) is disposed on the main pipe (701). A support plate (201) is fixedly disposed on the inner wall of the material shell (2). The elastic telescopic rod (703) is rotatably connected to the support plate (201).

4. A dust-reducing coal washing machine according to claim 3, characterized in that, The blower assembly includes a drive motor (9) fixed on the shell (2), a drive shaft (901) connected to the output shaft of the drive motor (9) and rotatably connected inside the shell (2), and blades (902) evenly arranged on the drive shaft (901) in a circular pattern. The first transmission assembly includes an incomplete gear (9011) fixed on the drive shaft (901). The main body (701) is provided with a driven gear (7012) that intermittently meshes with the incomplete gear (9011). A connecting plate (10) is fixed on the outer wall of the shell (2). A fixing block (1001) is fixed on the connecting plate (10) and moves against the connecting pipe (702). The side of the fixing block (1001) that abuts against the connecting pipe (702) is provided with an extrusion slope.

5. A dust-reducing coal washing machine according to claim 4, characterized in that, The filter element (6) includes two inclined plates (601) that are inclinedly arranged in the water storage tank (3) and a filter cloth (602) arranged between the two inclined plates (601). A support rod (603) for supporting the filter cloth (602) is arranged between the two inclined plates (601). The filter cloth (602) has an arc-shaped structure that is high in the middle and low on both sides. The height of the filter cloth (602) is higher than the height of the inclined plates (601).

6. A method of using the dust-reducing coal washing machine according to claim 5, characterized in that, Includes the following steps: S1: Raw coal is introduced through the feed inlet (101) of the coal washing machine hopper (1). When the raw coal enters the coal washing machine hopper (1), a large amount of coal ash is generated. The water pump (8) is controlled to run. The water pump (8) introduces the water in the water storage tank (3) into the nozzle (7011) through the water guide pipe (801). The water flow sprayed from the nozzle (7011) performs dust suppression work on the scattered coal ash. S2: Control the operation of the drive motor (9). The output shaft of the drive motor (9) drives the drive shaft (901) and the blades (902) on the outside of the drive shaft (901) to rotate. The blades (902) blow the coal ash that flies to the upper side of the spraying assembly, so that the coal ash that flies upward enters the dust collection hopper (4) into the dust settling pipe (5). S3: When the drive shaft (901) rotates, it drives the incomplete gear (9011) to rotate. The incomplete gear (9011) and the driven gear (7012) mesh intermittently. When the incomplete gear (9011) and the driven gear (7012) are meshed, the main body (701) drives the nozzle (7011) to rotate. When the incomplete gear (9011) is not meshed with the driven gear (7012), the main body (701) resets and rotates under the action of the torsion spring, so that the main body (701) drives the nozzle (7011) to swing back and forth to spray, thereby increasing the dust suppression range of the nozzle (7011) spraying back and forth. When the main body (701) rotates, the pressing slope of the connecting pipe (702) abuts against the pressing slope of the fixed block (1001). The connecting pipe (702) is forced to move the main body (701), causing the elastic telescopic rod (703) to passively contract. This causes the main body (701) to drive the nozzle (7011) to swing left and right, further increasing the dust suppression range of the nozzle (7011) and reducing the dust suppression blind zone. S4: When the drive shaft (901) rotates, it drives the reciprocating screw (131) to rotate via the synchronous pulley (14) and the synchronous belt. When the reciprocating screw (131) rotates, it drives the first connecting plate (1311) to rotate. The first connecting plate (1311) drives the slide rod (152) to move up and down reciprocally via the second connecting plate (1312). This causes the slide rod (152) to drive the piston (151) to move up and down reciprocally within the working tube (15). When the piston (151) moves upward within the working tube (15), the working tube (15) draws out the stored liquid through the inlet pipe (154). When the piston (151) moves down in the working pipe (15), the working pipe (15) discharges the pumped water into the water storage tank between the water storage pipe (502) and the moving pipe (503) through the liquid outlet pipe (153). When there is too much water in the water storage tank, it will overflow into the moving pipe (503) and form a water curtain on the inner wall of the moving pipe (503). This prevents coal ash from adhering to the inner wall of the moving pipe (503) while reducing the dust of the coal ash. The coal ash enters the water storage tank (3) with the water curtain and is intercepted and filtered by the filter element (6) in the water storage tank (3). S5: When the reciprocating screw (131) rotates, the main bevel gear (1313) meshes with the secondary bevel gear (111) on the rotating rod (11), and the secondary bevel gear (111) drives the rotating rod (11) to rotate. The rotating rod (11) drives the movable tube (503) to rotate through the connecting rod, so that the movable tube (503) rotates relative to the arc-shaped scraper (122). When the reciprocating screw (131) rotates, the sleeve (132) moves back and forth along the axial direction of the reciprocating screw (131). When the sleeve (132) moves to the right on the reciprocating screw (131), the sleeve (132) no longer applies tension to the arc-shaped scraper (122) through the pull rope (133). The arc-shaped scraper (122) abuts against the inner wall of the movable tube (503). The vertically downward-moving arc-shaped scraper (122) scrapes off the coal ash that is not easy to fall off and adheres to the inner wall of the rotating movable tube (503). The sleeve (132) moves along the reciprocating screw (131). When the sleeve (132) moves to the left, it applies a pulling force to the arc-shaped scraper (122) through the pull rope (133). The arc-shaped scraper (122) squeezes the elastic telescopic tube (121) and moves closer to the counterweight ring (12). The arc-shaped scraper (122) no longer abuts against the inner wall of the movable tube (503). At this time, the sleeve (132) moving to the left drives the counterweight ring (12) to move upward through the pull rope (133), so that the arc-shaped scraper (122) moves to the upper side of the movable tube (503) to scrape off the coal ash adhering to the inner wall of the movable tube (503) again.

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