Dust fall type coal washer and using method thereof

Abstract

The invention discloses a dust fall type coal washer and a using method thereof, and belongs to the technical field of coal washers. A dust fall type coal washer comprises a coal washer hopper, a feeding port is formed in the side edge of the coal washer hopper, the dust fall type coal washer 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 fall is arranged in the material shell, and a water storage tank for providing water for the spraying assembly is arranged on the outer side of the coal washer hopper; the fan assembly is arranged in the material shell and arranged on the upper side of the spraying assembly, and a dust collecting hopper is arranged on the side, away from the fan assembly, of the material shell; the dust falling pipe is arranged between the material shell and the water storage tank; by increasing the working range of the spray head, a better adsorption effect on dust can be achieved, generation and scattering of the dust in the coal cleaning process are reduced, dust particles in air are effectively collected and filtered, the cleanliness of the working environment and the air quality are improved, and therefore the good dust falling effect is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal washing machine, and particularly relates to a dust reduction type coal washing machine and a use method thereof. BACKGROUND

[0002] Different components and different specific gravity of raw coal are separated into different grades by the impact of water flow, and dust and waste rock are removed, and the ash and sulfur content is reduced, which is called coal washing. Coal washing is an indispensable link in coal processing. The coal after washing is called clean coal. Through coal washing, the utilization rate of coal can be improved.

[0003] When the coal falls into the coal washing machine, coal dust will be scattered. Generally, the scattered coal dust is sprayed by the nozzle, but the spraying range of the nozzle is limited, and a certain blind area is still formed, resulting in poor dust reduction effect in some areas, and the scattered coal dust cannot be effectively collected and treated. SUMMARY

[0004] The present application is proposed to solve the problems in the prior art, and provides a dust reduction type coal washing machine and a use method thereof.

[0005] In order to achieve the above-mentioned purpose, the technical scheme is as follows: A dust reduction type coal washing machine comprises a coal washing machine hopper, a feed inlet is formed in the side of the coal washing machine hopper, and the coal washing machine hopper further comprises: A material shell is fixedly arranged on the upper side of the coal washing machine hopper, a spraying assembly for dust reduction is arranged in the material shell, and a water storage tank for providing water for the spraying assembly is arranged on the outer side of the coal washing machine hopper; A fan assembly is arranged in the material shell and located on the upper side of the spraying assembly, and a dust collecting hopper is arranged on the side away from the fan assembly; A dust reduction pipe is arranged between the material shell and the water storage tank, a filter element for filtering coal dust is arranged in the water storage tank, and a dust removal assembly is arranged in the dust reduction pipe; The first transmission assembly is arranged between the fan assembly and the spraying assembly, and the second transmission assembly is arranged between the fan assembly and the dust removal assembly.

[0006] Preferably, the spraying assembly comprises a rotating pipe rotatably connected in the material shell and nozzles equidistantly distributed along the axis of the rotating pipe, a torsional spring for driving the rotating pipe to rotate and reset is arranged in the material shell, a water pump is arranged on the water storage tank, and a water guide pipe connected with the rotating pipe is connected to the water pump.

[0007] Preferably, the rotating pipe comprises a main pipe body connected with the material shell, a connecting pipe and an elastic telescopic rod arranged at two ends of the main pipe body respectively, the water guide pipe is communicated with the connecting pipe, the spray head is arranged on the main pipe body, the inner wall of the material shell is fixedly provided with a support plate, and the elastic telescopic rod is rotatably connected with the support plate.

[0008] Preferably, the fan assembly comprises a driving motor fixedly arranged on the material shell, a driving shaft connected with the output shaft of the driving motor and rotatably connected with the material shell, and blades arranged on the driving shaft uniformly in a circle, the first transmission assembly comprises an incomplete gear fixedly arranged on the driving shaft, the main pipe body is provided with a driven gear intermittently engaged with the incomplete gear, the outer side wall of the material shell is fixedly provided with a connecting plate, the connecting plate is fixedly provided with a fixed block movably abutting against the connecting pipe, and the abutting face of the fixed block and the connecting pipe is provided with an extrusion inclined surface.

[0009] Preferably, the dust falling pipe comprises a bent pipe connected with the dust collecting hopper, a water storage pipe arranged at the bottom of the bent pipe, and a movable pipe rotatably connected with the water storage pipe, the ash removing assembly is arranged in the movable pipe, and a water storage groove is formed between the outer wall of the movable pipe and the inner wall of the water storage pipe.

[0010] Preferably, the ash removing assembly comprises a rotating rod rotatably connected with the bent pipe, the bottom of the rotating rod is fixedly connected with the movable pipe through a connecting rod, a counterweight ring is slidably connected with the outer side of the rotating rod, the counterweight ring is fixedly provided with an elastic telescopic pipe, the end of the elastic telescopic pipe away from the counterweight ring is connected with an arc-shaped scraping block abutting against the inner wall of the movable pipe, and a guide rod slidably connected with the counterweight ring is fixedly arranged in the bent pipe.

[0011] Preferably, the second transmission assembly comprises a support fixedly arranged at the top of the material shell, a reciprocating screw rod rotatably connected with the support, a sleeve threadedly connected with the reciprocating screw rod, and a pull rope fixedly connected with the sleeve, the end of the pull rope away from the sleeve passes through the bent pipe, the counterweight ring, the elastic telescopic pipe and the arc-shaped scraping block in sequence and is connected with the arc-shaped scraping block, the reciprocating screw rod and the driving shaft are both provided with synchronous wheels, a synchronous belt is arranged between the two synchronous wheels, the reciprocating screw rod is provided with a main bevel gear, and the rotating rod is provided with a secondary bevel gear engaged with the main bevel gear.

[0012] Preferably, the outer wall of the water storage pipe is connected with a working pipe through a support rod, a piston is slidably connected in the working pipe, the top of the piston is provided with a sliding rod, the end of the reciprocating screw rod is provided with a first connecting plate, the second connecting plate is rotatably connected with the first connecting plate, the end of the second connecting plate away from the first connecting plate is movably connected with the sliding rod, the working pipe is provided with an inlet valve and an outlet valve, the working pipe is connected with an outlet pipe connected with the water storage pipe through the outlet valve, and the working pipe is connected with an inlet pipe connected with the bottom of the water storage tank through the inlet valve.

[0013] Preferably, the filter comprises two inclined plates arranged in the water storage tank and a filter cloth arranged between the two inclined plates, a supporting rod is arranged between the two inclined plates to support the filter cloth, the filter cloth has an arc structure with a middle height and two side low heights, and the height of the filter cloth is higher than the height of the inclined plates.

[0014] The application further discloses a use method of the dust reduction type coal washer. S1: raw coal is introduced through a feed inlet of a coal washer hopper, a large amount of coal ash is generated when the raw coal enters the coal washer hopper, a water pump is controlled to operate, the water pump guides water in a water storage tank into a spray head through a water guide pipe, and water flow sprayed by the spray head performs dust reduction on the flying coal ash; S2: a driving motor is controlled to operate, an output shaft of the driving motor drives a driving shaft and blades outside the driving shaft to rotate, the blades blow the coal ash flying to an upper side of the spraying assembly to make the upwardly flying coal ash enter a dust reduction pipe from a dust collection hopper; S3: the driving shaft drives an incomplete gear to rotate, the incomplete gear intermittently meshes with a driven gear, when the incomplete gear meshes with the driven gear, a main pipe body drives the spray head to rotate, when the incomplete gear does not mesh with the driven gear, the main pipe body is reset to rotate under the action of a torsional spring, the main pipe body drives the spray head to swing forward and backward to spray, and the dust reduction range of the spray head is improved; When the main pipe body rotates, an extrusion inclined surface of a connecting pipe and an extrusion inclined surface of a fixed block abut against each other, the connecting pipe is driven to displace the main pipe body, the elastic telescopic rod is passively contracted, the main pipe body drives the spray head to swing left and right, the dust reduction range of the spray head is further improved, and the dust reduction blind area is reduced; S4: when the driving shaft rotates, the driving shaft drives a reciprocating screw rod to rotate through a synchronous wheel and a synchronous belt, the reciprocating screw rod drives a first connecting plate to rotate, the first connecting plate drives a sliding rod to reciprocatingly move up and down through a second connecting plate, the sliding rod drives a piston to reciprocatingly move up and down in a working pipe, when the piston moves up in the working pipe, the working pipe draws water in the water storage tank through a liquid inlet pipe, when the piston moves down in the working pipe, the working pipe discharges the drawn water to a water storage tank between a water storage pipe and a movable pipe through a liquid outlet pipe, when the water storage tank has too much water, the water overflows into the movable pipe to form a water curtain on an inner wall of the movable pipe, the coal ash is prevented from adhering to the inner wall of the movable pipe and is subjected to dust reduction, and the coal ash enters the water storage tank along the water curtain and is intercepted and filtered by a filter in the water storage tank; S5: when the reciprocating screw rod rotates, a main bevel gear meshes with a secondary bevel gear on a rotating rod to drive the rotating rod to rotate, the rotating rod drives the movable pipe to rotate through a connecting rod, and the movable pipe rotates relative to an arc-shaped scraping block; When the reciprocating screw rod rotates, the sleeve reciprocates along the reciprocating screw rod, when the sleeve moves right on the reciprocating screw rod, the sleeve no longer exerts pulling force on the arc-shaped scraper through the pull rope, the arc-shaped scraper abuts against the inner wall of the movable pipe, the arc-shaped scraper vertically downward removes the coal ash adhered to the inner wall of the movable pipe, when the sleeve moves left on the reciprocating screw rod, the arc-shaped scraper is pulled by the pull rope, the arc-shaped scraper extrudes the elastic telescopic pipe and approaches the counterweight ring, the arc-shaped scraper no longer abuts against the inner wall of the movable pipe, at this time, the sleeve moves left to drive the counterweight ring to move upward through the pull rope, so that the arc-shaped scraper moves to the upper side of the movable pipe to remove the coal ash adhered to the inner wall of the movable pipe again.

[0015] Compared with the prior art, the dust reduction type coal washer and the use method thereof have the following beneficial effects: 1. The dust reduction type coal washer and the use method thereof can increase the working range of the spray head, have better adsorption effect on dust, reduce the generation and scattering of dust in the coal cleaning process, effectively collect and filter dust particles in the air, improve the cleanliness of the working environment and the air quality, and achieve good dust reduction effect. 2. The dust reduction type coal washer and the use method thereof drive the piston to reciprocate up and down in the working pipe through the sliding rod, when the piston moves upward in the working pipe, the working pipe draws water in the water storage tank through the liquid inlet pipe, when the piston moves downward in the working pipe, the working pipe discharges the drawn water into the water storage tank between the water storage pipe and the movable pipe through the liquid outlet pipe, when the water in the water storage tank is too much, the water will overflow into the movable pipe to form a water curtain on the inner wall of the movable pipe, so that the coal ash is prevented from adhering to the inner wall of the movable pipe and the coal ash is reduced, and the dust reduction effect is ensured. 3. The dust reduction type coal washer and the use method thereof remove the coal ash that is not easy to fall off from the movable pipe by the arc-shaped scraper abutting against the inner wall of the movable pipe when the arc-shaped scraper moves downward, and the arc-shaped scraper does not abut against the inner wall of the movable pipe when the arc-shaped scraper moves upward, so that the inner wall of the movable pipe is prevented from being scraped to the water storage tank and then adhering to the inner wall of the movable pipe again, and the cleaning effect and efficiency of the coal ash are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Structure diagram of the present application Figure 1 ; Figure 2 Structure diagram of the present application Figure 1 A part of the present application Figure 3 Structure diagram of the present application Figure 2 ; Figure 4 Structure diagram of the present application Figure 3 B part of the present application Figure 5It is a sectional structure schematic view of the present application; Figure 6 It is a sectional structure schematic view of the present application; Figure 5 It is a sectional structure schematic view of the present application; Figure 7 It is a sectional structure schematic view of the present application; Figure 5 It is a sectional structure schematic view of the present application; Figure 8 It is a sectional structure schematic view of the present application; Figure 5 It is a sectional structure schematic view of the present application; Figure 9 It is a sectional structure schematic view of the present application; Figure 5 It is a sectional structure schematic view of the present application; Figure 10 It is a sectional structure schematic view of the present application; Figure 11 It is a sectional structure schematic view of the present application.

[0017] In the figure: 1, coal washer hopper; 101, feeding port; 2, material shell; 201, support plate; 3, water storage tank; 4, dust collecting hopper; 5, dust falling pipe; 501, elbow 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 pipe body; 7011, spray head; 7012, driven gear; 702, connecting pipe; 703, elastic telescopic rod; 8, water pump; 801, water guide pipe; 9, driving motor; 901, driving shaft; 9011, incomplete gear; 902, blade; 10, connecting plate; 1001, fixed block; 11, rotating rod; 111, secondary bevel gear; 12, counterweight ring; 121, elastic telescopic pipe; 122, arc-shaped scraping block; 13, support; 131, reciprocating screw rod; 1311, first connecting plate; 1312, second connecting plate; 1313, main bevel gear; 132, sleeve; 133, pull rope; 14, synchronous wheel; 15, working pipe; 151, piston; 152, slide rod; 153, liquid outlet pipe; 154, liquid inlet pipe. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments of the present application.

[0019] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0020] Embodiment 1: Refer to Figure 1 , Figure 2 , Figure 3 and Figure 5 A dust reduction type coal washer, comprising a coal washer hopper 1, a feed inlet 101 is formed on the side of the coal washer hopper 1, further comprising: a material shell 2, the material shell 2 is fixedly arranged on the upper side of the coal washer hopper 1, a spraying assembly for dust reduction is arranged in the material shell 2, and a water storage tank 3 for providing water for the spraying assembly is arranged on the outer side of the coal washer hopper 1; a fan assembly, the fan assembly is arranged in the material shell 2 and is located on the upper side of the spraying assembly, and a dust collecting hopper 4 is arranged on the side of the material shell 2 away from the fan assembly; a dust reduction pipe 5, the dust reduction pipe 5 is arranged between the material shell 2 and the water storage tank 3, a filter 6 for filtering coal ash is arranged in the water storage tank 3, and a dust removal assembly is arranged in the dust reduction pipe 5; Wherein, a first transmission assembly is arranged between the fan assembly and the spraying assembly, and a second transmission assembly is arranged between the fan assembly and the dust removal assembly.

[0021] Specifically, raw coal is introduced through the feed inlet 101 of the coal washer hopper 1, a large amount of coal ash is generated when the raw coal enters the coal washer hopper 1, the spraying assembly is controlled to operate, the water flow sprayed by the spraying assembly performs dust reduction work on the flying coal ash, the fan assembly blows the coal ash flying to the upper side of the spraying assembly, so that the upwardly flying coal ash enters the dust reduction pipe 5 from the dust collecting hopper 4, and the fan assembly drives the spraying assembly to work when the fan assembly operates, which can increase the working range of the spraying assembly and better adsorb dust, which is conducive to reducing the generation and flying of dust in the coal cleaning process, effectively collecting and filtering dust particles in the air, improving the cleanliness of the working environment and air quality, and thus achieving good dust reduction effect.

[0022] Embodiment 2: Refer to Figure 1 , Figure 3 and Figure 5 A dust reduction type coal washer, based on embodiment 1, further, the spraying assembly comprises a rotating pipe 7 rotatably connected in the material shell 2 and a plurality of nozzles 7011 equidistantly distributed along the axial direction of the rotating pipe 7, a torsional spring for driving the rotating pipe 7 to rotate and reset is arranged in the material shell 2, a water pump 8 is arranged on the water storage tank 3, and a water guide pipe 801 connected with the rotating pipe 7 is connected to the water pump 8.

[0023] Specifically, the raw coal is introduced through the inlet 101 of the coal washing machine hopper 1, and a large amount of coal ash is generated when the raw coal enters the coal washing machine hopper 1. The water pump 8 is controlled to operate, and the water pump 8 guides the water in the water storage tank 3 into the spray head 7011 through the water guide pipe 801, and the water flow sprayed by the spray head 7011 performs dust suppression work on the flying coal ash.

[0024] Embodiment 3: with reference to Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 7 , a dust suppression type coal washing machine, further based on the embodiment 2, the rotating pipe 7 includes a main pipe body 701 connected with the material shell 2 in rotation, and a connecting pipe 702 and an elastic telescopic rod 703 respectively arranged at both ends of the main pipe body 701, the water guide pipe 801 and the connecting pipe 702 are in communication with each other, the spray head 7011 is arranged on the main pipe body 701, the inner wall of the material shell 2 is fixedly provided with a support plate 201, and the elastic telescopic rod 703 is rotatably connected with the support plate 201.

[0025] Further, the fan assembly includes a driving motor 9 fixedly arranged on the material shell 2, a driving shaft 901 connected with the output shaft of the driving motor 9 and rotatably connected in the material shell 2, and a plurality of blades 902 arranged uniformly in a circle on the driving shaft 901, the first transmission assembly includes an incomplete gear 9011 fixedly arranged on the driving shaft 901, the main pipe body 701 is provided with a driven gear 7012 intermittently meshing with the incomplete gear 9011, the outer side wall of the material shell 2 is fixedly provided with a connecting plate 10, the connecting plate 10 is fixedly provided with a fixed block 1001 movably abutting against the connecting pipe 702, and the abutting surface of the fixed block 1001 and the connecting pipe 702 is respectively provided with an extrusion inclined surface.

[0026] Specifically, when the fan assembly is running, the control driving motor 9 is running, the output shaft of the driving motor 9 drives the driving shaft 901 and the blade 902 outside the driving shaft 901 to rotate, the blade 902 blows the coal ash scattered to the upper side of the spraying assembly, so that the upwardly scattered coal ash enters the dust fall pipe 5 from the dust collecting hopper 4, the driving shaft 901 drives the incomplete gear 9011 to rotate, the incomplete gear 9011 and the driven gear 7012 are intermittently engaged, when the incomplete gear 9011 and the driven gear 7012 are engaged, the main pipe body 701 drives the spray head 7011 to rotate, when the incomplete gear 9011 is not engaged with the driven gear 7012, the main pipe body 701 is reset under the action of the torsional spring, so that the main pipe body 701 drives the spray head 7011 to swing forward and backward to spray, thereby improving the dust fall range of the spray head 7011; when the main pipe body 701 rotates, the extrusion slope of the connecting pipe 702 and the extrusion slope of the fixed block 1001 abut against each other, the connecting pipe 702 drives the main pipe body 701 to displace, so that the elastic expansion rod 703 is passively contracted, and then the main pipe body 701 drives the spray head 7011 to swing left and right, further improving the dust fall range of the spray head 7011, reducing the dust fall blind area, and improving the dust fall effect.

[0027] Embodiment 4: refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 8 、 Figure 9 and Figure 10 , a dust fall type coal washer, further based on the embodiment 3, the dust fall pipe 5 includes a bent pipe 501 connected with the dust collecting hopper 4, a water storage pipe 502 arranged at the bottom of the bent pipe 501, and a movable pipe 503 rotationally connected with the water storage pipe 502, and the ash removal assembly is arranged in the movable pipe 503, and a water storage groove is formed between the outer wall of the movable pipe 503 and the inner wall of the water storage pipe 502.

[0028] Further, the ash removal assembly includes a rotating rod 11 rotationally connected with the bent pipe 501, the rotating rod 11 is fixedly connected with the movable pipe 503 through a connecting rod at the bottom, a counterweight ring 12 is slidably connected outside the rotating rod 11, an elastic expansion pipe 121 is fixedly arranged on the counterweight ring 12, one end of the elastic expansion pipe 121 away from the counterweight ring 12 is connected with an arc-shaped scraping block 122 abutting against the inner wall of the movable pipe 503, and a guide rod 5011 slidably connected with the counterweight ring 12 is fixedly arranged in the bent pipe 501.

[0029] Further, the second transmission assembly comprises a support 13 fixed on the top of the material shell 2, a reciprocating screw rod 131 rotatably connected to the support 13, a sleeve 132 threadedly connected to the reciprocating screw rod 131, and a pull rope 133 fixedly connected to the sleeve 132, one end of the pull rope 133 away from the sleeve 132 sequentially passes through the elbow pipe 501, the counterweight ring 12, the elastic telescopic pipe 121 and is connected to the arc-shaped scraping block 122, the reciprocating screw rod 131 and the driving shaft 901 are each provided with a synchronous wheel 14, a synchronous belt is arranged between the two synchronous wheels 14, the reciprocating screw rod 131 is provided with a main bevel gear 1313, and the rotating rod 11 is provided with a secondary bevel gear 111 engaged with the main bevel gear 1313.

[0030] Further, the outer wall of the water storage pipe 502 is connected with a working pipe 15 through a support rod, the working pipe 15 is slidably connected with a piston 151, the top of the piston 151 is provided with a sliding rod 152, the end of the reciprocating screw rod 131 is provided with a first connecting plate 1311, the first connecting plate 1311 is rotatably connected with a second connecting plate 1312, one end of the second connecting plate 1312 away from the first connecting plate 1311 is movably connected with the sliding rod 152, the working pipe 15 is provided with an inlet valve and an outlet valve, the working pipe 15 is connected with an outlet pipe 153 connected with the water storage pipe 502 through the outlet valve, and the working pipe 15 is connected with an inlet pipe 154 connected with the bottom of the water storage tank 3 through the inlet valve.

[0031] Specifically, when the driving shaft 901 rotates, the reciprocating screw rod 131 is driven to rotate through the synchronous wheel 14 and the synchronous belt, the reciprocating screw rod 131 drives the first connecting plate 1311 to rotate, the first connecting plate 1311 drives the sliding rod 152 to move up and down reciprocatingly through the second connecting plate 1312, so that the sliding rod 152 drives the piston 151 to move up and down reciprocatingly in the working pipe 15, when the piston 151 moves up in the working pipe 15, the working pipe 15 draws water in the water storage tank 3 through the inlet pipe 154, when the piston 151 moves down in the working pipe 15, the working pipe 15 discharges the drawn water into the water storage tank between the water storage pipe 502 and the movable pipe 503 through the outlet pipe 153, when the water in the water storage tank is too much, it will overflow into the movable pipe 503 to form a water curtain on the inner wall of the movable pipe 503, so as to avoid the coal ash adhering to the inner wall of the movable pipe 503 and to reduce the dust of the coal ash, the coal ash enters the water storage tank 3 along with the water curtain and is intercepted and filtered by the filter 6 in the water storage tank 3; When the reciprocating screw rod 131 rotates, the main bevel gear 1313 meshes with the secondary bevel gear 111 on the rotating rod 11 to drive the rotating rod 11 to rotate, and the rotating rod 11 drives the movable pipe 503 to rotate through the connecting rod, so that the movable pipe 503 rotates relative to the arc-shaped scraper 122; when the reciprocating screw rod 131 rotates, the sleeve 132 moves axially along the reciprocating screw rod 131, when the sleeve 132 moves right on the reciprocating screw rod 131, the sleeve 132 no longer exerts a pulling force on the arc-shaped scraper 122 through the pull rope 133, the arc-shaped scraper 122 abuts against the inner wall of the movable pipe 503, the arc-shaped scraper 122 scrapes off the coal ash adhered to the inner wall of the movable pipe 503 which is not easy to fall off, when the sleeve 132 moves left on the reciprocating screw rod 131, the sleeve 132 exerts a pulling force on the arc-shaped scraper 122 through the pull rope 133, the arc-shaped scraper 122 extrudes the elastic expansion pipe 121 and moves towards the counterweight ring 12, the arc-shaped scraper 122 no longer abuts against the inner wall of the movable pipe 503, so that the inner wall of the movable pipe 503 is scraped to the water storage tank and then adheres to the inner wall of the movable pipe 503 again with the water flow, so as to ensure the cleaning effect and efficiency of the coal ash, the sleeve 132 moves left to drive the counterweight ring 12 to move upwards through the pull rope 133, so that the arc-shaped scraper 122 moves to the upper side of the movable pipe 503 to scrape off the coal ash adhered to the inner wall of the movable pipe 503 again.

[0032] Embodiment 5: refer to Figure 5 and Figure 11 A dust reduction type coal washer, further, the filter element 6 comprises two inclined plates 601 inclinedly arranged in the water storage tank 3 and a filter cloth 602 arranged between the two inclined plates 601, and a supporting 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 with the middle part being higher and the two side parts being lower, and the height of the filter cloth 602 is higher than the height of the inclined plates 601.

[0033] Specifically, when the coal ash falls in the water storage tank 3 with the water flow, the filter cloth 602 intercepts the coal ash in the water body, the filter cloth 602 is arc-shaped and higher than the two side inclined plates 601, so that the water flow falling from above can impact the coal ash on the filter cloth 602, and the intercepted coal ash slides along the arc-shaped filter cloth 602 to the two side inclined plates 601, and the supporting rod 603 can assist in supporting the filter cloth 602, and the water body after filtering the coal ash can be used by the spraying assembly.

[0034] The application further discloses a use method of the dust reduction type coal washer, which comprises the following steps: S1: The raw coal is introduced through the inlet 101 of the coal washing machine hopper 1, and a large amount of coal ash is generated when the raw coal enters the coal washing machine hopper 1. The water pump 8 is controlled to operate, and the water pump 8 guides the water in the water storage tank 3 into the spray head 7011 through the water guide pipe 801. The water flow sprayed by the spray head 7011 performs dust suppression work on the flying coal ash; S2: The driving motor 9 is controlled to operate, and the output shaft of the driving motor 9 drives the driving shaft 901 and the blade 902 outside the driving shaft 901 to rotate. The blade 902 blows the coal ash flying to the upper side of the spraying assembly to make the upwardly flying coal ash enter the dust collection pipe 5 from the dust collection hopper 4; S3: The driving shaft 901 drives the incomplete gear 9011 to rotate, and the incomplete gear 9011 intermittently engages with the driven gear 7012. When the incomplete gear 9011 engages with the driven gear 7012, the main pipe body 701 drives the spray head 7011 to rotate. When the incomplete gear 9011 does not engage with the driven gear 7012, the main pipe body 701 is reset to rotate under the action of the torsional spring, so that the main pipe body 701 drives the spray head 7011 to swing forward and backward to spray, thereby improving the dust suppression range of the spray head 7011; When the main pipe body 701 rotates, the extrusion inclined surface of the connecting pipe 702 and the extrusion inclined surface of the fixed block 1001 abut against each other. The connecting pipe 702 is stressed to drive the main pipe body 701 to displace, so that the elastic expansion rod 703 is passively contracted, and then the main pipe body 701 drives the spray head 7011 to swing left and right, further improving the dust suppression range of the spray head 7011 and reducing the dust suppression blind area; S4: When the driving shaft 901 rotates, the reciprocating screw rod 131 is driven to rotate through the synchronous wheel 14 and the synchronous belt. When the reciprocating screw rod 131 rotates, the first connecting plate 1311 is driven to rotate. The first connecting plate 1311 drives the sliding rod 152 to move up and down through the second connecting plate 1312, so that the sliding rod 152 drives the piston 151 to move up and down in the working pipe 15. When the piston 151 moves up in the working pipe 15, the working pipe 15 draws water in the water storage tank 3 through the liquid inlet pipe 154. When the piston 151 moves down in the working pipe 15, the working pipe 15 discharges the drawn water to the water storage tank between the water storage pipe 502 and the movable pipe 503 through the liquid outlet pipe 153. When the water storage tank has too much water, the water will overflow into the movable pipe 503 to form a water curtain on the inner wall of the movable pipe 503, thereby preventing coal ash from adhering to the inner wall of the movable pipe 503 and suppressing dust of the coal ash. The coal ash enters the water storage tank 3 along with the water curtain and is intercepted and filtered by the filter 6 in the water storage tank 3; S5: When the reciprocating screw rod 131 rotates, the main bevel gear 1313 engages with the secondary bevel gear 111 on the rotating rod 11 to drive the rotating rod 11 to rotate. The rotating rod 11 drives the movable pipe 503 to rotate through the connecting rod; When the reciprocating screw rod 131 rotates, the sleeve 132 reciprocates along the reciprocating screw rod 131 in the axial direction, when the sleeve 132 moves right on the reciprocating screw rod 131, the sleeve 132 no longer exerts a pulling force on the arc-shaped scraping block 122 through the pull rope 133, the arc-shaped scraping block 122 abuts against the inner wall of the movable pipe 503, the arc-shaped scraping block 122 vertically downwardly removes the coal ash adhered to the inner wall of the movable pipe 503 in rotation, when the sleeve 132 moves left on the reciprocating screw rod 131, the sleeve 132 exerts a pulling force on the arc-shaped scraping block 122 through the pull rope 133, the arc-shaped scraping block 122 extrudes the elastic telescopic pipe 121 and moves close to the counterweight ring 12, the arc-shaped scraping block 122 no longer abuts against the inner wall of the movable pipe 503, at this time, the sleeve 132 moving left drives the counterweight ring 12 to move upward through the pull rope 133, so that the arc-shaped scraping block 122 moves to the upper side of the movable pipe 503 and removes the coal ash adhered to the inner wall of the movable pipe 503 again.

[0035] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

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; 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.

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 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).

6. A dust-reducing coal washing machine according to claim 5, characterized in that, 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 provided 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 provided inside the bent tube (501).

7. A dust-reducing coal washing machine according to claim 6, characterized in that, 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) fixed 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).

8. A dust-reducing coal washing machine according to claim 7, characterized in that, 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.

9. A dust-reducing coal washing machine according to claim 8, 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).

10. A method of using the dust-reducing coal washing machine according to claim 9, 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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