A coal washing wastewater treatment and reuse device

Abstract

This invention relates to the field of wastewater treatment technology, and specifically discloses a coal washing wastewater treatment and reuse device, comprising: a first flocculation tank, with a feed pipe connected to the top of the first flocculation tank and a drain pipe connected to one side of the first flocculation tank, and a frame fixedly connected to the outer wall of the first flocculation tank; a detection sleeve, with an inspection port on the outer side of the detection sleeve; a second flocculation tank, with a drain port on one side of the second flocculation tank, and a drain pipe connected to the side of the second flocculation tank away from the drain port; a feeding device, with the outer side of the feeding device fixedly connected to the inner wall of the detection sleeve; and a diffusion device, with the bottom of the diffusion device fixedly connected to the bottom of the inner wall of the second flocculation tank. This coal washing wastewater treatment and reuse device solves the problem of CCD camera detection failure in turbid, foamy, and poor lighting environments, and is driven by the physical properties of the fluid itself without relying on sensors or cameras.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a device for treating and reusing coal washing wastewater. Background Technology

[0002] my country is a major coal producer and consumer, and coal washing, as a crucial step in the clean utilization of coal, plays a key role in improving coal quality and reducing pollutant emissions. However, the coal washing process consumes a large amount of water resources—taking heavy media coal washing as an example, approximately 3 tons of circulating water are needed for every ton of raw coal processed, resulting in a large amount of coal washing wastewater containing coal slime, suspended solids, and organic reagents. Typical characteristics of coal washing wastewater include: high suspended solids concentration: containing a large amount of fine particles such as coal slime and sand, resulting in a high concentration of suspended solids (SS); complex pollutant composition: in addition to suspended solids, it also contains small amounts of oil, foaming agents, flocculants, and other organic reagents, resulting in a high concentration of chemical oxygen demand (COD); strong colloidal stability: the particle surfaces carry a strong negative charge, causing mutual repulsion between particles and forming a stable colloidal system, making natural sedimentation difficult; poor biodegradability: the organic matter in the wastewater is mostly non-biodegradable. With the introduction of "dual carbon" targets and increasingly stringent water resource management requirements, coal washing wastewater treatment faces higher environmental standards. The toxic and harmful substances such as phenols, polycyclic aromatic hydrocarbons, and heavy metals contained in coal washing wastewater, if discharged directly without effective treatment, will cause serious pollution to water bodies and soil, threatening ecosystems and human health.

[0003] Chinese patent CN112299606B discloses a coal washing wastewater treatment and reuse device, comprising a first flocculation tank and a second flocculation tank connected in series via a first water pump set. Both the first and second flocculation tanks are equipped with flocculant dosing mechanisms. The second flocculation tank is equipped with a CCD camera for monitoring the flocculation degree. The first flocculation tank contains a stirring mechanism, and the bottom of the second flocculation tank has a non-powered turbulence mechanism. A drain pipe is located on one side of the second flocculation tank. Inside the second flocculation tank, in front of the drain pipe, is a vertically upward-facing baffle plate. The drain pipe is connected to a self-cleaning filter press mechanism via a second water pump set. This invention performs multiple flocculation processes on coal washing wastewater, resulting in thorough flocculation. The self-cleaning filter press mechanism further filters the flocculated wastewater, providing excellent filtration efficiency and high working efficiency. The water produced by the filter press can be used for coal washing, achieving water reuse. When the device is used to treat wastewater by flocculation, the accuracy of the CCD camera is easily affected in industrial environments with turbidity, foam, and poor lighting conditions, which can lead to inaccurate flocculant addition. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides: a coal washing wastewater treatment and reuse device, comprising: The first flocculation tank has a feed pipe connected to its top and a drain pipe connected to one side. A frame is fixedly connected to the outer wall of the first flocculation tank. A testing sleeve, wherein an inspection port is provided on the outer side of the testing sleeve; The second flocculation tank has a drain outlet on one side, and a drain pipe is connected to the side of the second flocculation tank away from the drain outlet. A feeding device, wherein the outer side of the feeding device is fixedly connected to the inner wall of the detection sleeve; A diffusion device, the bottom of which is fixedly connected to the bottom of the inner wall of the second flocculation tank; The top of the detection sleeve penetrates and extends into the interior of the first flocculation tank, and the top of the detection sleeve communicates with the interior of the first flocculation tank. The bottom of the detection sleeve penetrates and extends into the interior of the second flocculation tank, and the bottom of the detection sleeve communicates with the interior of the second flocculation tank. The outer side of the second flocculation tank is fixedly connected to the inner wall of the frame. The feeding device includes: An impeller is provided, with a rotating shaft fixedly connected to its bottom. A limit frame is rotatably connected to the outer side of the rotating shaft via a rolling bearing. A drug storage tank is fixedly connected to the bottom of the rotating shaft, and an addition port is provided at the top of the drug storage tank. Both ends of the drug storage tank are connected to a drug dispensing sleeve. An annular plate is fitted and fixedly connected to the outer side of the drug dispensing sleeve. A feeding cylinder is slidably connected to the inner wall of the drug dispensing sleeve, and a feeding hole is provided on the outer side of the feeding cylinder. An extension plate is fixedly connected to the outer side of the feeding cylinder, and a return spring is fixedly connected to one side of the extension plate. When the flocculation effect is good, the impeller speed is slow, and most of the feeding holes are blocked by the drug dispensing sleeve, with only a few feeding holes discharging a small amount of material. The flocculant is added adaptively for the secondary flocculation operation based on the initial flocculation effect, solving the problem of CCD camera detection failure in turbid, foamy, and poor lighting environments. It does not rely on sensors or cameras, but is driven by the physical properties of the fluid itself.

[0005] Preferably, the outer side of the limiting frame is fixedly connected to the inner wall of the detection sleeve, multiple sets of feeding holes are opened, and the multiple sets of feeding holes are evenly distributed on the outer side of the feeding cylinder, and multiple sets of extension plates are provided, and the multiple sets of extension plates are evenly distributed on the outer side of the feeding cylinder.

[0006] Preferably, the end of the return spring away from the extension plate is fixedly connected to one side of the annular plate, and the interior of the medicine storage tank is filled with flocculant.

[0007] Preferably, the feeding device further includes a stirring device, the outer side of which is fixedly connected to the inner wall of the detection sleeve.

[0008] Preferably, the agitation device includes a support rod, a base is fixedly connected to the bottom of the support rod, a fixing frame is fixedly connected to the outside of the base, and material-dispensing rods are evenly installed on the outside of the support rod. A material-dispensing plate is fixedly connected to the outside of the material-dispensing rods through a bracket. When the storage tank rotates, it drives the flocculant inside through the material-dispensing plate. The material-dispensing plate, which is relatively stationary with respect to the storage tank, can agitate the flocculant, effectively preventing flocculant agglomeration and ensuring the smooth discharge of flocculant. A guide port is provided on one side of the material-dispensing plate.

[0009] Preferably, the support rod extends through the bottom of the medicine storage tank, and the support rod is rotatably connected to the bottom of the medicine storage tank through a sealed bearing. The side of the fixing frame away from the base is fixedly connected to the inner wall of the detection sleeve, and multiple sets of guide ports are provided.

[0010] Preferably, the diffusion device includes a reinforcing column, a diverter cylinder is fixedly connected to the top of the reinforcing column, a pressurized nozzle is connected to the outside of the diverter cylinder, a water collection cylinder is connected to the top of the diverter cylinder via a pump, a water delivery pipe is connected to the outside of the water collection cylinder, filter outlets are evenly distributed on the outside of the water delivery pipe, and a filter screen is installed on the outside of the water delivery pipe near the filter outlets. When water passes through the filter outlets, it is filtered by the filter screen to prevent the flocs inside from affecting the diffusion operation of the pump and the pressurized nozzle, thus utilizing the second flocculation... The water in the tank sprays and spreads the flocculant without increasing additional water consumption. A water storage cylinder is fixedly connected to the outside of the water supply pipe. The top of the water storage cylinder is connected to a spherical shell with a water storage hole at the top. A sealing plug is installed at the bottom of the water storage cylinder to push the flocculant from the feeding hole to various areas of the second flocculation tank, making the concentration field of the second flocculation tank more uniform, ensuring full contact between the agent and the wastewater, and resulting in faster and denser floc formation. This effectively prevents floc breakage caused by excessively high agent concentration near the inlet of the second flocculation tank.

[0011] Preferably, the bottom of the reinforcing column is fixedly connected to the bottom of the inner wall of the second flocculation tank, and multiple sets of pressurizing nozzles are provided, which are evenly distributed on the outside of the diversion cylinder.

[0012] Preferably, the end of the water supply pipe near the filter outlet extends into the interior of the water storage cylinder, and multiple sets of water storage holes are provided, with the multiple sets of water storage holes evenly distributed on the spherical shell.

[0013] This invention provides a device for treating and reusing coal washing wastewater. It has the following beneficial effects: 1. This coal washing wastewater treatment and reuse device, through the installation of the feeding device, when the flocculation effect is good, the impeller speed is slow, most of the feeding holes are blocked by the discharge sleeve, and only a few feeding holes discharge a small amount of material. Based on the initial flocculation effect, the flocculant is added adaptively for the secondary flocculation operation, which solves the problem of CCD camera detection failure in turbid, foamy, and poor lighting environments. It does not rely on sensors or cameras, but is driven by the physical properties of the fluid itself.

[0014] 2. This coal washing wastewater treatment and reuse device, through the installation of an agitator, allows the flocculant inside the storage tank to be agitated by a stirring plate as the storage tank rotates. The stirring plate, which is relatively stationary with respect to the storage tank, can agitate the flocculant, effectively preventing flocculant agglomeration and ensuring the smooth discharge of the flocculant.

[0015] 3. This coal washing wastewater treatment and reuse device, through the installation of a diffusion device, pushes the flocculant fed from the feeding hole to various areas of the second flocculation tank, making the concentration field of the second flocculation tank more uniform, ensuring full contact between the agent and the wastewater, and resulting in faster and denser floc formation. This effectively prevents floc breakage caused by excessively high agent concentration near the inlet of the second flocculation tank.

[0016] 4. This coal washing wastewater treatment and reuse device, through the installation of a filter inlet and a filter screen, allows water to be filtered by the filter screen when it passes through the filter inlet, preventing the flocs inside from affecting the diffusion operation of the pump and the pressurized nozzle. The water entering the second flocculation tank is used to spray and diffuse the flocculant without increasing additional water consumption. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the coal washing wastewater treatment and reuse device of the present invention; Figure 2 This is a schematic diagram of the internal structure of the first flocculation tank of the present invention; Figure 3 This is a schematic diagram of the internal structure of the detection sleeve of the present invention; Figure 4 This is a schematic diagram of the impeller structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the medicine storage tank of the present invention; Figure 6 This is a schematic diagram of the material feeding plate of the present invention; Figure 7 This is a schematic diagram of the water collection cylinder of the present invention; Figure 8 This is a schematic diagram of the internal structure of the water storage cylinder of the present invention.

[0018] In the diagram: 1. First flocculation tank; 2. Feed pipe; 3. Drain pipe; 4. Frame; 5. Inspection sleeve; 6. Inspection port; 7. Second flocculation tank; 8. Feeding device; 81. Impeller; 82. Rotating shaft; 83. Limiting frame; 84. Chemical storage tank; 85. Addition port; 86. Discharge sleeve; 87. Annular plate; 88. Feeding cylinder; 89. Agitator; 891. Support rod; 892. Base; 893. Fixing frame; 894. Feeding rod 895. Feeding plate; 896. Guide port; 810. Feeding hole; 811. Extension plate; 812. Return spring; 9. Diffusion device; 91. Reinforcing column; 92. Diverter cylinder; 93. Pressurized nozzle; 94. Liquid pump; 95. Water collection cylinder; 96. Water delivery pipe; 97. Filter port; 98. Filter screen; 99. Water storage cylinder; 910. Spherical shell; 911. Water storage hole; 912. Sealing plug; 10. Sewage outlet; 11. Drain pipe. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] For the first embodiment, please refer to... Figures 1-6 The present invention provides a technical solution: a coal washing wastewater treatment and reuse device, comprising: The first flocculation tank 1 has a feed pipe 2 connected to its top, a drain pipe 3 connected to one side of its side, and a frame 4 fixedly connected to its outer wall. The detection sleeve 5 has an inspection port 6 on its outer side; The second flocculation tank 7 has a drain outlet 10 on one side and a drain pipe 11 connected to the side of the second flocculation tank 7 away from the drain outlet 10. Feeding device 8, the outer side of feeding device 8 is fixedly connected to the inner wall of detection sleeve 5; The bottom of the diffusion device 9 is fixedly connected to the bottom of the inner wall of the second flocculation tank 7. The top of the detection sleeve 5 penetrates and extends into the interior of the first flocculation tank 1, and the top of the detection sleeve 5 communicates with the interior of the first flocculation tank 1. The bottom of the detection sleeve 5 penetrates and extends into the interior of the second flocculation tank 7, and the bottom of the detection sleeve 5 communicates with the interior of the second flocculation tank 7. The outer side of the second flocculation tank 7 is fixedly connected to the inner wall of the frame 4. The feeding device 8 includes: Impeller 81, with a rotating shaft 82 fixedly connected to the bottom of impeller 81. A limit frame 83 is rotatably connected to the outer side of rotating shaft 82 via rolling bearing. A medicine storage tank 84 is fixedly connected to the bottom of rotating shaft 82. A filling port 85 is opened at the top of medicine storage tank 84. Both ends of medicine storage tank 84 are connected to medicine dispensing sleeves 86. An annular plate 87 is fitted and fixedly connected to the outer side of medicine dispensing sleeve 86. A feeding cylinder 88 is slidably connected to the inner wall of medicine dispensing sleeve 86. A feeding hole 810 is opened on the outer side of feeding cylinder 88. An extension plate 811 is fixedly connected to the outer side of feeding cylinder 88. A return spring 812 is fixedly connected to one side of extension plate 811.

[0021] The outer side of the limiting frame 83 is fixedly connected to the inner wall of the detection sleeve 5. Multiple sets of feeding holes 810 are provided, and the multiple sets of feeding holes 810 are evenly distributed on the outer side of the feeding cylinder 88. Multiple sets of extension plates 811 are provided, and the multiple sets of extension plates 811 are evenly distributed on the outer side of the feeding cylinder 88.

[0022] The end of the return spring 812 away from the extension plate 811 is fixedly connected to one side of the annular plate 87, and the inside of the medicine storage tank 84 is filled with flocculant.

[0023] The feeding device 8 also includes a stirring device 89, the outer side of which is fixedly connected to the inner wall of the detection sleeve 5.

[0024] The stirring device 89 includes a support rod 891, a base 892 is fixedly connected to the bottom of the support rod 891, a fixing frame 893 is fixedly connected to the outside of the base 892, a material feeding rod 894 is evenly installed on the outside of the support rod 891, a material feeding plate 895 is fixedly connected to the outside of the material feeding rod 894 through a bracket, and a guide port 896 is opened on one side of the material feeding plate 895.

[0025] The support rod 891 passes through the bottom of the medicine storage tank 84. The support rod 891 is rotatably connected to the bottom of the medicine storage tank 84 through a sealed bearing. The fixed frame 893 is fixedly connected to the inner wall of the detection sleeve 5 on the side away from the base 892. Multiple sets of guide ports 896 are provided.

[0026] In use, the wastewater to be treated is discharged into the first flocculation tank 1 through the feed pipe 2. Flocculant is then added to the first flocculation tank 1. After preliminary flocculation treatment in the first flocculation tank 1, the wastewater is discharged into the second flocculation tank 7 through the detection sleeve 5 for secondary flocculation. When the fluid flows into the detection sleeve 5, the fluid drives the impeller 81 to rotate. For fluids with good flocculation effect, the impeller 81 rotates slowly due to the dragging effect of the flocs on the blades of the impeller 81. For fluids with poor flocculation effect, the impeller 81 rotates faster. The rotation of the impeller 81 drives the storage tank 84 to rotate via the rotating shaft 82. During the rotation of the storage tank 84, the feeding cylinder 88 is subjected to centrifugal force, pulling the return spring 812 and gradually sliding out from the discharge sleeve 86. The flocculant inside the storage tank 84 is subjected to centrifugal force... The material moves into the feeding cylinder 88 and is finally discharged into the second flocculation tank 7 through the feeding hole 810. When the flocculation effect is poor, the impeller 81 rotates faster. The faster the rotation, the greater the centrifugal force, and the greater the amplitude of the feeding cylinder 88 sliding out of the discharge sleeve 86. Multiple sets of feeding holes 810 on the feeding cylinder 88 slide out of the discharge sleeve 86. The simultaneous discharge of multiple sets of feeding holes 810 results in more flocculant being discharged. When the flocculation effect is good, the impeller 81 rotates slower, and most of the feeding holes 810 are blocked by the discharge sleeve 86. Only a few feeding holes 810 discharge a small amount of material. Based on the initial flocculation effect, the flocculant is added adaptively for the secondary flocculation operation. This solves the problem of CCD camera detection failure in turbid, foamy, and poor lighting environments. It does not rely on sensors or cameras and is driven by the physical properties of the fluid itself.

[0027] When the storage tank 84 rotates, it drives the flocculant inside through the material feeding plate 895. The material feeding plate 895, which is relatively stationary with the storage tank 84, can agitate the flocculant, effectively preventing the flocculant from clumping and ensuring the smooth discharge of the flocculant.

[0028] Second embodiment, please refer to Figures 1-8 The present invention provides a technical solution: Based on embodiment one, the diffusion device 9 includes a reinforcing column 91, a diverter 92 fixedly connected to the top of the reinforcing column 91, a pressurizing nozzle 93 connected to the outside of the diverter 92, a water collecting cylinder 95 connected to the top of the diverter 92 via a liquid pump 94, a water supply pipe 96 connected to the outside of the water collecting cylinder 95, filter ports 97 evenly distributed on the outside of the water supply pipe 96, a filter screen 98 installed on the outside of the water supply pipe 96 near the filter ports 97, a water storage cylinder 99 fixedly connected to the outside of the water supply pipe 96, a spherical shell 910 connected to the top of the water storage cylinder 99, a water storage hole 911 opened on the top of the spherical shell 910, and a sealing plug 912 installed at the bottom of the water storage cylinder 99.

[0029] The bottom of the reinforcing column 91 is fixedly connected to the bottom of the inner wall of the second flocculation tank 7. Multiple sets of pressurizing nozzles 93 are provided, and the multiple sets of pressurizing nozzles 93 are evenly distributed on the outside of the diversion cylinder 92.

[0030] The end of the water supply pipe 96 near the water filter 97 extends into the interior of the water storage cylinder 99. Multiple sets of water storage holes 911 are provided, and the multiple sets of water storage holes 911 are evenly distributed on the spherical shell 910.

[0031] During use, some of the water flowing from the impeller 81 falls from the water storage hole 911 into the spherical shell 910, and then flows through the spherical shell 910 into the water storage tank 99. At this time, the liquid pump 94 is turned on to draw water from the filter port 97 into the water delivery pipe 96, and then flows through the water delivery pipe 96 into the water collection tank 95, and finally into the distribution tank 92. The pressurizing nozzle 93 is turned on to spray the water in the distribution tank 92 towards the second flocculation tank 7, pushing the flocculant fed from the feeding hole 810 into the second flocculation tank. The various areas of 7 make the concentration field of the second flocculation tank 7 more uniform, the reagent and wastewater fully contact each other, and the flocs are formed faster and denser. It effectively prevents the flocs from breaking due to excessive reagent concentration near the inlet of the second flocculation tank 7. When the water passes through the filter inlet 97, it is filtered by the filter screen 98 to prevent the flocs inside from affecting the diffusion operation of the pump 94 and the pressurizing nozzle 93. The water entering the second flocculation tank 7 is used to spray and diffuse the flocculant without increasing the additional water consumption.

[0032] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A device for treating and reusing coal washing wastewater, characterized in that, include: The first flocculation tank (1) has a feed pipe (2) connected to the top of the first flocculation tank (1), a drain pipe (3) connected to one side of the first flocculation tank (1), and a frame (4) fixedly connected to the outer wall of the first flocculation tank (1). Inspection sleeve (5), with an inspection port (6) on the outer side of the inspection sleeve (5); The second flocculation tank (7) has a drain outlet (10) on one side and a drain pipe (11) connected to the side of the second flocculation tank (7) away from the drain outlet (10). Feeding device (8), the outer side of which is fixedly connected to the inner wall of the detection sleeve (5); A diffusion device (9) is fixedly connected to the bottom of the inner wall of the second flocculation tank (7). The top of the detection sleeve (5) extends through and into the interior of the first flocculation tank (1), and the top of the detection sleeve (5) communicates with the interior of the first flocculation tank (1). The bottom of the detection sleeve (5) extends through and into the interior of the second flocculation tank (7), and the bottom of the detection sleeve (5) communicates with the interior of the second flocculation tank (7). The outer side of the second flocculation tank (7) is fixedly connected to the inner wall of the frame (4). The feeding device (8) includes: An impeller (81) is fixedly connected to a rotating shaft (82) at its bottom. A limit frame (83) is rotatably connected to the outer side of the rotating shaft (82) via a rolling bearing. A medicine storage tank (84) is fixedly connected to the bottom of the rotating shaft (82). An addition port (85) is provided at the top of the medicine storage tank (84). Both ends of the medicine storage tank (84) are connected to a medicine dispensing sleeve (86). An annular plate (87) is fitted and fixedly connected to the outer side of the medicine dispensing sleeve (86). A feeding cylinder (88) is slidably connected to the inner wall of the medicine dispensing sleeve (86). A feeding hole (810) is provided on the outer side of the feeding cylinder (88). An extension plate (811) is fixedly connected to the outer side of the feeding cylinder (88). A return spring (812) is fixedly connected to one side of the extension plate (811).

2. The coal washing wastewater treatment and reuse device according to claim 1, characterized in that: The outer side of the limiting frame (83) is fixedly connected to the inner wall of the detection sleeve (5). Multiple sets of feeding holes (810) are provided, and the multiple sets of feeding holes (810) are evenly distributed on the outer side of the feeding cylinder (88). Multiple sets of extension plates (811) are provided, and the multiple sets of extension plates (811) are evenly distributed on the outer side of the feeding cylinder (88).

3. The coal washing wastewater treatment and reuse device according to claim 1, characterized in that: The end of the return spring (812) away from the extension plate (811) is fixedly connected to one side of the annular plate (87), and the inside of the medicine storage tank (84) is filled with flocculant.

4. The coal washing wastewater treatment and reuse device according to claim 1, characterized in that: The feeding device (8) also includes a stirring device (89), the outer side of which is fixedly connected to the inner wall of the detection sleeve (5).

5. The coal washing wastewater treatment and reuse device according to claim 4, characterized in that: The stirring device (89) includes a support rod (891), a base (892) is fixedly connected to the bottom of the support rod (891), a fixing frame (893) is fixedly connected to the outside of the base (892), a feeding rod (894) is evenly installed on the outside of the support rod (891), a feeding plate (895) is fixedly connected to the outside of the feeding rod (894) through a bracket, and a guide opening (896) is provided on one side of the feeding plate (895).

6. The coal washing wastewater treatment and reuse device according to claim 5, characterized in that: The support rod (891) passes through the bottom of the medicine storage tank (84). The support rod (891) is rotatably connected to the bottom of the medicine storage tank (84) through a sealed bearing. The fixed frame (893) is fixedly connected to the inner wall of the detection sleeve (5) on the side away from the base (892). Multiple sets of guide ports (896) are provided.

7. The coal washing wastewater treatment and reuse device according to claim 1, characterized in that: The diffusion device (9) includes a reinforcing column (91), a diverter cylinder (92) is fixedly connected to the top of the reinforcing column (91), a pressurizing nozzle (93) is connected to the outside of the diverter cylinder (92), a water collection cylinder (95) is connected to the top of the diverter cylinder (92) through a liquid pump (94), a water supply pipe (96) is connected to the outside of the water collection cylinder (95), a filter port (97) is evenly opened on the outside of the water supply pipe (96), a filter screen (98) is installed on the outside of the water supply pipe (96) near the filter port (97), a water storage cylinder (99) is fixedly connected to the outside of the water supply pipe (96), a spherical shell (910) is connected to the top of the water storage cylinder (99), a water storage hole (911) is opened on the top of the spherical shell (910), and a sealing plug (912) is installed at the bottom of the water storage cylinder (99).

8. The coal washing wastewater treatment and reuse device according to claim 7, characterized in that: The bottom of the reinforcing column (91) is fixedly connected to the bottom of the inner wall of the second flocculation tank (7). Multiple sets of pressurizing nozzles (93) are provided, and the multiple sets of pressurizing nozzles (93) are evenly distributed on the outside of the diverter (92).

9. The coal washing wastewater treatment and reuse device according to claim 7, characterized in that: The water supply pipe (96) extends into the interior of the water storage cylinder (99) at one end near the water filter (97). Multiple sets of water storage holes (911) are provided, and the multiple sets of water storage holes (911) are evenly distributed on the spherical shell (910).

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