Coal cleaning equipment

Abstract

The utility model relates to the technical field of coal cleaning, in particular to coal cleaning equipment which comprises a feeding port and a discharging port, and the inner bottom face of a coal washing pool has a first downward inclination angle from the feeding port to the discharging port. The rolling brush assembly is mounted at the feeding hole and is used for primarily brushing the coal entering the coal washing pool; the vibration assembly is mounted at the bottom of the coal washing pool and is used for vibrating the coal washing pool; the conveying mechanism is arranged at the discharge hole and is used for conveying discharged coal; the water circulating mechanism comprises a liquid collecting pool, a filtering pool, a circulating liquid pipe and a liquid pump, and the liquid collecting pool is arranged below the conveying mechanism and the discharging opening and used for collecting the coal washing liquid of the conveying mechanism and the discharging opening; the filter tank is connected with the liquid collecting tank through a circulating liquid pipe; a clear liquid cavity of the filter tank is communicated with the circulating liquid pipe and extends to the feeding hole; and the liquid pump is connected with the circulating liquid pipe. The coal washing device solves the problems that in the prior art, coal washing equipment is low in coal washing efficiency, and coal washing water cannot be recycled.

Description

Technical Field

[0001] This utility model relates to the field of coal cleaning technology, specifically providing a coal cleaning device. Background Technology

[0002] Coal washing, commonly known as "coal washing" or "coal preparation," is a crucial step in coal production and processing. Its core is to remove impurities (such as gangue, mud, sulfur, and ash) from raw coal through physical or chemical methods, thereby improving coal quality, optimizing utilization efficiency, and reducing environmental pollution.

[0003] Existing coal washing equipment is inefficient, has a low coal output rate, and cannot recycle washing water. For example, the utility model patent with authorization announcement number CN221754079U, entitled "A Coal Washing Equipment for Coal Engineering," has a box-type overall structure. This structure has low coal output and washing efficiency and is prone to jamming. Utility Model Content

[0004] This utility model provides a coal washing device that solves the problems of low coal washing efficiency and the inability to recycle coal washing water in existing coal washing devices.

[0005] This utility model provides a coal washing device, comprising:

[0006] A coal washing tank has an inlet and an outlet, and the inner bottom surface of the coal washing tank has a first downward inclination angle from the inlet to the outlet.

[0007] A roller brush assembly is installed at the feed inlet and is used to perform preliminary brushing on the coal entering the coal washing tank.

[0008] A vibration assembly is installed at the bottom of the coal washing tank for vibrating the coal washing tank.

[0009] A transport mechanism, located at the discharge port, is used to transport the coal.

[0010] The water circulation mechanism includes a collection tank, a filter tank, a circulating liquid pipe, and a liquid pump. The collection tank is located below the transport mechanism and the discharge port, and is used to collect the coal washing liquid from the transport mechanism and the discharge port. The filter tank is connected to the collection tank through the circulating liquid pipe. The clear liquid chamber of the filter tank is connected to the circulating liquid pipe and extends to the inlet. The liquid pump is connected to the circulating liquid pipe.

[0011] According to the coal washing equipment provided by this utility model, the bottom surface of the coal washing pool also has a second inclined angle along the width direction to form a shape that is high on both sides and low in the middle.

[0012] According to the coal washing equipment provided by this utility model, the coal washing tank includes a feeding hopper, and the feeding hopper has the feeding port;

[0013] The roller brush assembly includes:

[0014] At least two roller brushes are rotatably mounted on the feed hopper;

[0015] A first driving mechanism, connected to the roller brush, is used to drive the roller brush to rotate relative to each other.

[0016] According to the coal washing equipment provided by this utility model, the vibration component includes:

[0017] A vibratory motor is located below the coal washing tank;

[0018] Multiple elastic telescopic components are provided below the coal washing tank;

[0019] The vibrating head has multiple components, the same number as the elastic telescopic components, and is respectively installed at the bottom end of the elastic telescopic components. The vibrating head also contacts the bottom plate of the coal washing tank.

[0020] A cam mechanism is connected to the vibration motor and the elastic telescopic member respectively, and is used to convert the rotation of the vibration motor into the reciprocating motion of the elastic telescopic member.

[0021] According to the coal washing equipment provided by this utility model, the transportation mechanism includes:

[0022] Frame;

[0023] A conveyor belt assembly includes a drive wheel and a conveyor belt body, wherein the drive wheel is rotatably mounted on the frame, and the conveyor belt body is cyclically mounted on the frame via the drive wheel; the conveyor belt body has a mesh structure.

[0024] The second drive mechanism is connected to the transmission wheel and is used to drive the transmission wheel to rotate.

[0025] According to the coal washing equipment provided by this utility model, the conveyor belt assembly has an upward slope, and flexible baffles are provided on both sides of the conveyor belt body along the length direction, and multiple transport baffles are arranged in parallel side by side along the width direction.

[0026] The coal cleaning equipment provided by this utility model also includes a chemical feeding mechanism:

[0027] A medicine storage box is disposed on the outer surface of the filter tank;

[0028] The inlet tube is connected at one end to the drug storage box and at the other end to the clear liquid chamber of the filter tank.

[0029] A drug pump is installed between the drug inlet tube and the drug storage box, and a drug concentration sensor is installed at one end of the drug inlet tube that extends into the clear liquid chamber.

[0030] The coal washing equipment provided by this utility model also includes a spraying mechanism, which comprises:

[0031] Spray pipes, a plurality of the spray pipes are arranged at intervals above the coal washing tank along the length of the coal washing tank;

[0032] Multiple spray holes are evenly distributed on the lower surface of the spray pipe along its length.

[0033] The water inlet pipe is connected to multiple spray pipes and to the clear liquid section of the circulating liquid pipe.

[0034] The coal washing equipment provided by this utility model effectively solves the problems of low coal washing efficiency and the inability to recycle coal washing water in existing coal washing equipment by changing the traditional box-type washing equipment to an open, fully automatic washing equipment. Specifically:

[0035] By setting up a coal washing tank, and the bottom surface of the coal washing tank having a first downward inclination angle from the inlet to the outlet, the coal entering from the inlet can slide towards the outlet along the direction of the first inclination angle, thus achieving the cleaning of a large amount of coal without causing blockage.

[0036] Furthermore, the roller brush assembly provides initial washing of the coal entering through the feed inlet; the vibration assembly vibrates the coal in the washing tank, removing easily spilled substances from the surface after water washing, thus further purifying the coal and preventing blockages in the washing tank; the transport mechanism moves the washed coal from the discharge outlet to trucks or loading platforms, preventing blockages and improving the equipment's coal processing efficiency; and the water circulation mechanism recycles the wastewater generated during the washing process, reducing washing costs.

[0037] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0039] Figure 1 This is a three-dimensional structural diagram of the coal washing equipment provided by this utility model from a first-person perspective;

[0040] Figure 2 This is a two-dimensional structural diagram of the coal washing equipment provided by this utility model from a second perspective.

[0041] Figure 3 This is a schematic diagram of the oblique section three-dimensional structure of the coal washing pool provided by this utility model;

[0042] Figure 4 This is a schematic diagram of the horizontal cross-section of the coal washing tank provided by this utility model;

[0043] Figure 5 This is a schematic diagram of the three-dimensional structure of the coal washing tank provided by this utility model;

[0044] Figure 6 This is a schematic diagram of the installation position of the vibration component provided by this utility model;

[0045] Figure 7 yes Figure 6 Enlarged structural diagram at point A;

[0046] Figure 8 This is a three-dimensional structural diagram of the conveyor belt assembly provided by this utility model;

[0047] Figure 9 This is a schematic diagram of the installation position of the drug feeding mechanism provided by this utility model;

[0048] Figure 10 yes Figure 9 Enlarged schematic diagram of the 3D structure at point B;

[0049] Figure 11 This is a schematic diagram of the installation position of the spraying mechanism provided by this utility model;

[0050] Figure 12 This is a three-dimensional structural diagram of the spraying mechanism provided by this utility model.

[0051] Figure label:

[0052] 1. Coal washing pool; 101. Feed inlet; 102. Discharge outlet; 103. First inclination angle; 104. Second inclination angle; 105. Feed hopper; 2. Roller brush assembly; 201. Roller brush; 202. First drive mechanism; 3. Vibration assembly; 301. Vibration motor; 302. Elastic telescopic component; 303. Vibration head; 304. Cam mechanism; 4. Conveying mechanism; 401. Frame; 402. Conveyor belt assembly; 4021. Drive wheel; 4022. 4023 Conveyor belt; 4024 Flexible baffle; 403 Transport baffle; 404 Second drive mechanism; 5 Water circulation mechanism; 501 Collection tank; 502 Filter tank; 5021 Clear liquid chamber; 503 Circulating liquid pipe; 504 Liquid pump; 6 Drug feeding mechanism; 601 Drug storage box; 602 Drug feeding pipe; 603 Drug pump; 604 Drug concentration sensor; 7 Spraying mechanism; 701 Spray pipe; 702 Spray hole; 703 Water inlet pipe. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0054] In the description of the embodiments of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "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 the embodiments of this utility model 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 the embodiments of this utility model. In addition, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0055] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0056] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0057] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0058] The following is combined with Figures 1 to 12 The embodiments shown illustrate the technical solution of this utility model:

[0059] This utility model embodiment provides a coal washing device, such as... Figures 1 to 4 As shown, it includes: a coal washing tank 1, a roller brush assembly 2, a vibration assembly 3, a conveying mechanism 4, and a water circulation mechanism 5;

[0060] The coal washing tank 1 has an inlet 101 and an outlet 102, and the inner bottom surface of the coal washing tank 1 has a first downward inclination angle 103 from the inlet 101 to the outlet 102; the roller brush assembly 2 is installed at the inlet 101 and is used to perform preliminary brushing on the coal entering the coal washing tank 1; the vibration assembly 3 is installed at the bottom of the coal washing tank 1 and is used to vibrate the coal washing tank 1.

[0061] The transport mechanism 4 is located at the discharge port 102 and is used to transport the coal. The water circulation mechanism 5 includes a collection tank 501, a filter tank 502, a circulating liquid pipe 503, and a liquid pump 504. The collection tank 501 is located below the transport mechanism 4 and the discharge port 102 and is used to collect the coal washing liquid from the transport mechanism 4 and the discharge port 102. The filter tank 502 is connected to the collection tank 501 through the circulating liquid pipe 503. The clear liquid chamber 5021 of the filter tank 502 is connected to the circulating liquid pipe 503 and extends to the inlet 101. The liquid pump 504 is connected to the circulating liquid pipe 503.

[0062] It is understandable that the cavity shape of the coal washing tank 1 can be semi-cylindrical or semi-frustum, etc., as long as the vertical height of the inlet 101 is higher than that of the outlet 102, so that the coal can be output from the outlet 102 under the action of gravity; at the same time, the tilt angle should not be too high to ensure that the coal does not fall rapidly on the coal washing tank 1, thereby avoiding other problems such as substandard cleaning effect.

[0063] In this embodiment, the coal washing pool 1 is welded from large sheet metal and has an approximately rectangular cavity shape, which can process a large amount of coal at one time and also has a more stable structure.

[0064] The inner bottom surface of the coal washing pool 1 has a first downward inclination angle 103 from the inlet 101 to the outlet 102, which ensures that the coal moves to the outlet 102 along the direction of the first inclination angle 103 under the action of gravity, and there will be no problem of coal accumulation.

[0065] A roller brush assembly 2 is installed at the feed inlet 101. The roller brush assembly 2 uses two opposing roller brushes to preliminarily wash the coal.

[0066] Furthermore, a vibration component 3 is installed at the bottom of the coal washing pool 1, and the bottom of the coal washing pool 1 is made of flexible iron sheet. Through the vibration of the vibration component 3, the bottom of the coal washing pool 1 is driven to vibrate up and down, so that the mud attached to the surface of the coal is shaken off, thereby improving the quality of the coal. A transport mechanism 4 is installed at the discharge port 102 to transport the washed coal outward.

[0067] A water circulation mechanism 5 is also provided. A collection tank 501 is set below the transport mechanism 4 and the discharge port 102 to collect the coal washing water generated during the coal washing process. The water is then transported to the filter tank 502 through the circulation pipe 503. In the filter tank 502, sedimentation and other water purification processes are carried out. After that, the coal washing water becomes clearer and is stored in the clear liquid chamber 5021. It is then transported to the circulation pipe 503 by the help of the liquid pump 504 and finally flows to the inlet 101 to realize the recycling of wastewater.

[0068] The coal washing equipment provided by this utility model effectively solves the problems of low coal washing efficiency and the inability to recycle coal washing water in existing coal washing equipment by changing the traditional box-type washing equipment to an open, fully automatic washing equipment. Specifically:

[0069] By setting up the coal washing tank 1, and the bottom surface of the coal washing tank 1 having a first downward inclination angle 103 from the inlet 101 to the outlet 102, the coal entering from the inlet 101 can slide towards the outlet 102 along the direction of the first inclination angle 103, thus achieving the cleaning of a large amount of coal without causing blockage.

[0070] Furthermore, the roller brush assembly 2 is used to initially wash the coal entering through the feed inlet 101; the vibration assembly 3 is used to vibrate the coal in the coal washing tank 1, removing easily spilled substances from the surface of the coal after water washing, thus further purifying the coal and vibrating it to transport the coal, preventing blockage in the coal washing tank 1; the transport mechanism 4 is used to transport the washed coal from the discharge outlet 102 to a truck or loading platform, preventing blockage at the discharge outlet 102 and improving the coal processing efficiency of the equipment; the water circulation mechanism 5 is used to recycle the wastewater generated during the coal washing process, thereby reducing coal washing costs.

[0071] The coal cleaning equipment provided according to the embodiments of this utility model, such as Figures 2 to 4 As shown, the bottom surface of the coal washing pool 1 also has a second inclination angle 104 along the width direction to form a shape that is high on both sides and low in the middle.

[0072] In this embodiment, a coal washing tank 1 without a second tilt angle 104 may experience coal blockage at the discharge port 102 and on both sides of the coal washing tank 1. The setting of the second tilt angle 104 effectively solves this problem. Furthermore, the height of the second tilt angle 104 is consistent with the height of the coal washing tank 1, preventing coal from falling from the discharge port 102 to a position outside the transport mechanism 4, reducing the probability of needing secondary coal washing, and thus reducing labor costs.

[0073] The coal cleaning equipment provided according to the embodiments of this utility model, such as Figure 3 and Figure 5 As shown, the coal washing tank 1 includes a feeding hopper 105, which has a feeding port 101;

[0074] The roller brush assembly 2 includes:

[0075] At least two roller brushes 201 are rotatably mounted on the feed hopper 105;

[0076] The first drive mechanism 202 is connected to the roller brush 201 and is used to drive the roller brush 201 to rotate relative to each other.

[0077] It is understandable that the first drive mechanism 202 can be a combination of a servo motor and a belt, gear or chain, which can drive the roller brush 201 to rotate.

[0078] In this embodiment, the coal washing tank 1 includes a feeding hopper 105, which has an inlet 101. Coal enters the feeding hopper 105 through the inlet 101 and is initially scraped by a rotating brush assembly 2 installed in the feeding hopper 105. The brush assembly 2 includes a brush 201 and a first driving mechanism 202. The first driving mechanism 202 drives the brush 201 to rotate, thereby initially scraping off impurities attached to the surface of the coal.

[0079] The coal cleaning equipment provided according to the embodiments of this utility model, such as Figure 6 and Figure 7 As shown, the vibration assembly 3 includes:

[0080] Vibration motor 301 is located below coal washing tank 1;

[0081] Multiple elastic telescopic components 302 are provided below the coal washing tank 1;

[0082] There are multiple vibrating heads 303, which are the same number as the elastic telescopic members 302, and they are respectively installed at the bottom end of the elastic telescopic members 302. The vibrating heads 303 also contact the bottom plate of the coal washing tank 1.

[0083] The cam mechanism 304 is connected to the vibration motor 301 and the elastic telescopic member 302 respectively, and is used to convert the rotation of the vibration motor 301 into the reciprocating motion of the elastic telescopic member 302.

[0084] It is understood that the elastic telescopic component 302 can be a spring, preferably made of metals such as spring steel or stainless steel, or it can be a rigid elastic component made of composite materials, which can reciprocate with the rotation of the cam mechanism 304 and drive the flexible iron sheet at the bottom of the coal washing pool 1 to vibrate.

[0085] Vibration component 3 can also be a single vibration motor installed on both sides of the bottom plate of coal washing tank 1, which can drive the bottom plate of coal washing tank 1 to vibrate;

[0086] In this embodiment, the bottom plate of the coal washing tank 1 is made of flexible sheet metal, and several vibrating heads 303 are provided under the bottom plate of the coal washing tank 1. Each vibrating head 303 is connected to an elastic telescopic member 302, preferably a metal spring. The bottom of the elastic telescopic member 302 abuts against the vibrating head 303, and the other end of the vibrating head 303 abuts against a cam mechanism 304. The cam mechanism 304 is axially sleeved on the output end of the vibrating motor 301. When the vibrating motor 301 works, it drives the cam mechanism 304 to rotate, so that the vibrating head 303 abutting against it is squeezed, realizing up and down movement, and compressing the elastic telescopic member 302 abutting against the vibrating head 303, so that the elastic telescopic member 302 periodically moves up and down, thereby squeezing the bottom plate of the coal washing tank 1, realizing the continuous up and down vibration of the coal in the coal washing tank 1, preventing the coal from clogging in the coal washing tank 1, and also causing some of the adhering substances on the coal to fall off under vibration, further enhancing the cleaning effect of the coal.

[0087] The coal cleaning equipment provided according to the embodiments of this utility model, such as Figure 1 and Figure 8 As shown, transportation unit 4 includes:

[0088] Frame 401;

[0089] The conveyor belt assembly 402 includes a drive wheel 4021 and a conveyor belt 4022 body. The drive wheel 4021 is rotatably mounted on the frame 401, and the conveyor belt 4022 body is cyclically mounted on the frame 401 via the drive wheel 4021. The conveyor belt 4022 body has a mesh structure.

[0090] The second drive mechanism 403 is connected to the transmission wheel 4021 and is used to drive the transmission wheel 4021 to rotate.

[0091] It is understandable that the second drive mechanism 403 can be a combination of a servo motor and a belt or chain, which can drive the transmission wheel 4021 to rotate and ultimately realize the rotation of the conveyor belt 4022 around the transmission wheel 4021.

[0092] The frame 401 can be a sloping structure or a horizontal structure, as long as it can support the conveyor belt assembly 402;

[0093] In this embodiment, the transport mechanism 4 includes a frame 401. With the frame 401 positioned higher than the discharge port 102, coal can be transported from the discharge port 102 to other directions, reducing the time spent on manual collection and transport, and ultimately transporting it to a truck or loading platform. The drive wheel 4021 and the conveyor belt 4022 form a conveyor belt assembly 402, which enables long-distance transport of coal. The second drive mechanism 403 provides the power source for the rotation of the conveyor belt assembly 402. The conveyor belt 4022 has a mesh structure, which can further remove small pieces of coal or impurities from the coal through the mesh during transport, further improving the quality of the coal and achieving a drainage effect, thus preparing for the subsequent water circulation mechanism 5.

[0094] The coal cleaning equipment provided according to the embodiments of this utility model, such as Figure 1 and Figure 8 As shown, the conveyor belt assembly 402 has an upward slope, and flexible baffles 4023 are provided on both sides of the conveyor belt 4022 body along the length direction, and multiple transport baffles 4024 are arranged in parallel side by side along the width direction.

[0095] In this embodiment, flexible baffles 4023 are provided on both sides of the conveyor belt 4022 along the length direction, and multiple transport baffles 4024 are provided in parallel along the width direction to ensure that coal will not scatter during transportation. The transport baffles 4024 prevent coal from scattering due to backflow during transportation on the slope structure, reducing coal waste, lowering the probability of secondary coal washing, and reducing labor costs.

[0096] The coal cleaning equipment provided according to the embodiments of this utility model, such as Figure 1 , Figures 8 to 10 As shown, it also includes a drug delivery mechanism 6:

[0097] A medicine storage box 601 is disposed on the outer surface of the filter tank 502;

[0098] The inlet pipe 602 is connected at one end to the storage box 601 and at the other end to the clear liquid chamber 5021 of the filter tank 502.

[0099] A medicine pump 603 is provided between the medicine inlet tube 602 and the medicine storage box 601, and a medicine concentration sensor 604 is provided at one end of the medicine inlet tube 602 that extends into the clear liquid chamber 5021.

[0100] In this embodiment, the storage box 601 contains foaming agents such as eucalyptus oil and methyl isobutyl methanol. After being fully dissolved with the filtered water in the clear liquid chamber 5021, it is transported to the coal washing tank 1 through the circulating liquid pipe 503. It reacts with the coal in the coal washing tank 1, reduces the surface tension of the coal with water, removes oil and soluble impurities from the coal surface, and makes it easier for impurities attached to the coal surface to fall off, achieving a preliminary cleaning effect on the coal. A chemical pump 603 is installed between the inlet pipe 602 and the storage box 601. The chemical pump 603 discharges the chemical from the storage box 601 into the clear liquid chamber 5021. At the same time, a chemical concentration sensor 604 is installed at the other end of the inlet pipe 602 to sense whether the concentration of the mixed chemical water in the clear liquid chamber 5021 meets the cleaning requirements. When the concentration is found to be appropriate, the chemical pump 603 is turned off until the clear liquid chamber 5021 is filled with new filtered water. Then, the chemical pump 603 is restarted to complete the above actions and realize the recycling of coal washing water.

[0101] The coal cleaning equipment provided according to the embodiments of this utility model, such as Figure 11 and Figure 12 As shown, it also includes a spraying mechanism 7, which includes:

[0102] Spray pipe 701, multiple spray pipes 701 are spaced apart above the coal washing tank 1 along the length of the coal washing tank 1;

[0103] Multiple spray holes 702 are evenly distributed on the lower surface of the spray pipe 701 along the length of the spray pipe 701.

[0104] The water inlet pipe 703 is connected to multiple spray pipes 701 and to the clear liquid section of the circulating liquid pipe 503.

[0105] In this embodiment, by setting a spraying mechanism 7 above the coal washing tank 1, the coal surface can come into contact with the chemical solution in the spray pipe 701, further improving the coal washing speed and effect, thereby improving the coal purification effect and obtaining higher quality coal. At the same time, the spray pipe 701 is provided with multiple spray holes 702, which can further contact the chemical solution mixture with the coal in the coal washing tank 1, further improving the coal washing effect. Meanwhile, one end of the spray pipe 701 is connected to a water inlet pipe 703, and one end of the water inlet pipe 703 is connected to a circulating liquid pipe 503, so that the coal washing water can reuse the chemical solution in the chemical storage box 601 multiple times during the circulation process, improving the coal washing effect of the coal washing tank 1, thereby improving the coal washing efficiency of the device.

[0106] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A coal washing device, characterized in that, include: A coal washing tank has an inlet and an outlet, and the inner bottom surface of the coal washing tank has a first downward tilt angle from the inlet to the outlet. A roller brush assembly is installed at the feed inlet and is used to perform preliminary brushing on the coal entering the coal washing tank. A vibration assembly is installed at the bottom of the coal washing tank for vibrating the coal washing tank. A transport mechanism, located at the discharge port, is used to transport the coal. The water circulation mechanism includes a collection tank, a filter tank, a circulating liquid pipe, and a liquid pump. The collection tank is located below the transport mechanism and the discharge port, and is used to collect the coal washing liquid from the transport mechanism and the discharge port. The filter tank is connected to the collection tank through the circulating liquid pipe. The clear liquid chamber of the filter tank is connected to the circulating liquid pipe and extends to the inlet. The liquid pump is connected to the circulating liquid pipe.

2. The coal washing equipment according to claim 1, characterized in that, The bottom surface of the coal washing pool also has a second inclined angle along the width direction to form a shape that is high on both sides and low in the middle.

3. The coal washing equipment according to claim 1, characterized in that, The coal washing tank includes a feeding hopper, and the feeding hopper has the feeding port; The roller brush assembly includes: At least two roller brushes are rotatably mounted on the feed hopper; A first driving mechanism, connected to the roller brush, is used to drive the roller brush to rotate relative to each other.

4. The coal washing equipment according to claim 1, characterized in that, The vibration assembly includes: A vibratory motor is located below the coal washing tank; Multiple elastic telescopic components are provided below the coal washing tank; The vibrating head has multiple heads, the same number as the elastic telescopic rods, and is installed at the bottom of the elastic telescopic member. The vibrating head also contacts the bottom plate of the coal washing tank. A cam mechanism is connected to the vibration motor and the elastic telescopic member respectively, and is used to convert the rotation of the vibration motor into the reciprocating motion of the elastic telescopic member.

5. The coal washing equipment according to claim 1, characterized in that, The transportation agencies include: Frame; A conveyor belt assembly includes a drive wheel and a conveyor belt body, wherein the drive wheel is rotatably mounted on the frame, and the conveyor belt body is cyclically mounted on the frame via the drive wheel; the conveyor belt body has a mesh structure. The second drive mechanism is connected to the transmission wheel and is used to drive the transmission wheel to rotate.

6. The coal washing equipment according to claim 5, characterized in that, The conveyor belt assembly has an upward slope, and flexible baffles are provided on both sides of the conveyor belt body along the length direction, and multiple transport baffles are arranged in parallel side by side along the width direction.

7. The coal washing equipment according to claim 1, characterized in that, This also includes drug procurement institutions: A medicine storage box is disposed on the outer surface of the filter tank; The inlet tube is connected at one end to the drug storage box and at the other end to the clear liquid chamber of the filter tank. A drug pump is installed between the drug inlet tube and the drug storage box, and a drug concentration sensor is installed at one end of the drug inlet tube that extends into the clear liquid chamber.

8. The coal washing equipment according to claim 1, characterized in that, It also includes a spraying mechanism, which comprises: Spray pipes, a plurality of the spray pipes are arranged at intervals above the coal washing tank along the length of the coal washing tank; Multiple spray holes are evenly distributed on the lower surface of the spray pipe along its length. The water inlet pipe is connected to multiple spray pipes and to the clear liquid section of the circulating liquid pipe.

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