A coal water slurry concentration device

Abstract

The application belongs to the technical field of concentration equipment, and discloses a water coal slurry concentration equipment, which comprises a mounting frame, a rod mill and a cylindrical screen rotatably installed between side plates on both sides of the mounting frame, the rod mill is located above the cylindrical screen, one end of the cylindrical screen is fixedly connected with a connecting shell coaxially arranged with the cylindrical screen, one end of the rod mill is fixedly connected with a mixing box, the lower end of the mixing box is fixedly connected with the top of the connecting shell and communicates with the connecting shell, a plurality of discharge through holes communicating with the mixing box are arranged in the end of the rod mill close to the mixing box, a feeding mechanism for feeding additives into the rod mill and the mixing box is arranged on the mounting frame, an atomization assembly is arranged on the mounting frame, a rotating mechanism is arranged on the mounting frame, and a water supply mechanism is arranged on the mounting frame. Through the design of additive diversion and the treatment of atomization of the additives sprayed into the mixing box, the utilization rate of the additives is improved, and the cost of raw materials is reduced.

Description

Technical Field

[0001] This utility model relates to the field of thickening equipment technology, and in particular to a coal-water slurry thickening equipment. Background Technology

[0002] Coal-water slurry is a low-pollution, high-efficiency, pipeline-transportable coal-based fluid fuel obtained through physical processing of coal, water, and additives. It changes the traditional combustion method of coal and shows great environmental and energy-saving advantages. Coal-water slurry production is a key link in coal chemical industry, and its quality directly affects the efficiency of subsequent combustion or gasification.

[0003] In the existing process, water, coal powder and additives are added into the coal mill drum at once. After mixing, the mixture is initially screened through a primary drum screen to produce slurry. When the additives are mixed with coal powder and water in the mill, they are prone to partial degradation or precipitation due to mechanical shearing and high temperature, resulting in the loss of effective components (estimated loss rate of about 5% to 10%), which increases the cost of raw materials. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a coal-water slurry thickening device.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a coal-water slurry thickening device, including a mounting frame, a rod mill and a cylindrical screen are rotatably mounted between the side plates on both sides of the mounting frame, the rod mill is located above the cylindrical screen, a connecting shell coaxially arranged with the cylindrical screen is fixed at one end of the cylindrical screen, a mixing box is fixed at one end of the rod mill, the lower end of the mixing box is fixed and connected to the top of the connecting shell, a plurality of discharge through holes communicating with the inside of the mixing box are provided through the end of the rod mill near the mixing box, a feeding mechanism for supplying additives to the rod mill and the mixing box is provided on the mounting frame, an atomizing component for atomizing the additives supplied to the mixing box is provided on the mounting frame, a rotating mechanism for driving the rod mill and the cylindrical screen to rotate is provided on the mounting frame, and a water supply mechanism for supplying water to the rod mill is provided on the mounting frame.

[0006] By adopting the above technical solution, additives (approximately 70%–90% of the additive content in existing technologies) are first supplied into the rod mill via a feeding mechanism. Simultaneously, water is supplied into the rod mill via a water supply mechanism, and pulverized coal is discharged from the feed end of the rod mill. At this point, a rotating mechanism drives the rod mill to rotate, causing the grinding rods inside to grind the mixture of pulverized coal, water, and additives. The ground mixture is discharged into the mixing chamber through a discharge port. Then, additives (approximately 10%–30% of the additive content in existing technologies) are supplied into the mixing chamber via the feeding mechanism. This method of diverting and injecting additives improves the utilization rate of the additives and reduces the cost of raw materials. Furthermore, the additives entering the mixing chamber are atomized by an atomizing component. Atomization disperses the liquid into tiny droplets, significantly increasing the contact area between the liquid and solid particles, thereby improving mixing efficiency and further enhancing utilization.

[0007] Furthermore, the feeding mechanism includes a conveying assembly, which includes a storage box fixed to the top of a side plate on one side of the mounting frame, a first discharge pipe fixed and connected to the bottom of the storage box, and a second discharge pipe fixed and connected to the bottom of the storage box. The first discharge pipe corresponds to the feed end of the rod mill. Solenoid valves are provided on both the storage box and the first discharge pipe. The feeding mechanism also includes a filtering assembly for filtering the additives in the second discharge pipe.

[0008] By adopting the above technical solution, opening the solenoid valves of the first and second discharge pipes allows a portion of the additive in the storage tank to be discharged into the rod mill via the first discharge pipe. The remaining additive is discharged through the second discharge pipe to the filter assembly, which filters the additive to improve its purity and prevent large particles from clogging the atomization assembly.

[0009] Furthermore, the filtration assembly includes a filter box fixed on the mounting bracket, a screw pump fixed on the filter box, a feed pipe fixed and connected to the discharge end of the screw pump, and a filter frame detachably connected to the filter box. The top of the filter box has a slot for insertion and connection with the filter frame. The end of the second discharge pipe away from the storage tank is located above the filter box. The feed end of the screw pump extends into the filter box. The atomizing assembly includes a high-pressure air pipe fixed and connected to the top of the feed pipe and an atomizing nozzle disposed in the mixing chamber. The high-pressure air pipe is equipped with a one-way valve that controls air to be discharged only from the high-pressure air pipe into the feed pipe. The atomizing nozzle is connected to the feed pipe, and the high-pressure air pipe is connected to an external high-pressure air source.

[0010] By adopting the above technical solution, the additive in the second discharge pipe will be discharged into the filter frame, which will filter the additive. In addition, after the screw pump starts working, the clean additive in the filter box will be discharged by the screw pump into the conveying pipe, and then discharged into the atomizing nozzle. At the same time, high-pressure gas is supplied into the conveying pipe through the high-pressure gas pipe to atomize the additive. Finally, the atomized additive is discharged from the atomizing nozzle and mixed with the ground product to ensure the normal operation of the device.

[0011] Furthermore, the rotating mechanism includes a rotating motor fixed on the mounting frame, a drive gear fixedly sleeved on the output end of the rotating motor, a first gear ring fixedly sleeved on the rod mill and meshing with the drive gear, and a second gear ring fixedly sleeved on the cylindrical screen and meshing with the drive gear.

[0012] By adopting the above technical solution, after the rotating motor works, it drives the drive gear to rotate, thereby causing the first gear ring meshing with the drive gear, the rod mill meshing with the first gear ring, the second gear ring meshing with the drive gear, and the cylindrical screen connected to the second gear ring to all rotate, thus ensuring the normal operation of the rod mill and the cylindrical screen.

[0013] Furthermore, the mixing chamber is provided with an anti-clogging component, which includes a rotating rod rotatably installed inside the mixing chamber, a spiral blade fixedly sleeved on the rotating rod and located inside the mixing chamber near the bottom of the mixing chamber, a mounting plate fixed to the top of the mixing chamber, and an anti-clogging motor fixed to the mounting plate and driving the rotating rod to rotate.

[0014] By adopting the above technical solution, the anti-blocking motor drives the rotating rod to rotate after it starts working, which in turn causes the spiral blade connected to the rotating rod to rotate, thereby discharging the product in the mixing box evenly into the connecting shell and reducing the probability of the mixing box becoming blocked.

[0015] Furthermore, the water supply mechanism includes a water pump fixed on the mounting frame, a main water supply pipe fixed and connected to the outlet end of the water pump, and a branch water supply pipe fixed and connected to the main water supply pipe. Solenoid valves are provided on both the branch water supply pipe and the main water supply pipe. The end of the branch water supply pipe away from the main water supply pipe is fixed and connected to the second discharge pipe.

[0016] By adopting the above technical solution, after the water pump starts working, it draws external water into the main water supply pipe through its inlet end, and finally discharges it into the feed end of the rod mill, ensuring the normal grinding operation of the device. In addition, when the device is stopped, the solenoid valve on the water supply branch pipe is opened, and the water flow will sequentially flow into the second discharge pipe, the feed pipe, and the atomizing nozzle for cleaning, reducing the probability of blockage when the second discharge pipe, the feed pipe, and the atomizing nozzle are not working.

[0017] Furthermore, the atomizing nozzle passes through the mixing chamber and is rotatably connected. The atomizing nozzle is rotatably connected to the end of the feed pipe away from the screw pump. The feed pipe and the atomizing nozzle are sealed by a rotating shaft seal. The rotating rod and the atomizing nozzle are jointly provided with a drive assembly. The drive assembly includes a driving sprocket fixedly sleeved on the rotating rod, a driven sprocket fixedly sleeved on the atomizing nozzle, and a chain for connecting the driving sprocket and the driven sprocket. The chain meshes with both the driving sprocket and the driven sprocket.

[0018] By adopting the above technical solution, during the rotation of the rotating rod, the driving sprocket fixed to the rotating rod, the chain meshing with the driving sprocket, the driven sprocket meshing with the chain, and the atomizing nozzle fixed to the driven sprocket all rotate. The rotation of the atomizing nozzle generates centrifugal force, which throws the liquid out to form an extremely thin liquid film or filamentous jet, thereby dispersing the liquid into smaller droplets, accelerating the mixing speed of the additive and the product, and improving the mixing effect of the additive and the product.

[0019] Furthermore, a dustproof shell is fixed to the top of the filter box, and the end of the second discharge pipe away from the storage box is located inside the dustproof shell.

[0020] By adopting the above technical solution, the probability of additives overflowing into the filter box is reduced.

[0021] In summary, the present invention has the following beneficial effects: In this application, by designing the additive to be diverted and by treating the additive sprayed into the mixing box to be atomized, the utilization rate of the additive is improved and the cost of raw materials is reduced. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 yes Figure 1 A cross-sectional view showing the internal structure of the mixing chamber after the dust cover has been removed; Figure 3 This is an exploded view of an embodiment of the present invention to highlight the connection structure between the filter frame and the filter box; Figure 4 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the connection structure between the rotating rod and the spiral plate support; Figure 5 yes Figure 4 Enlarged diagram of point A in the middle.

[0023] In the diagram: 1. Mounting frame; 2. Rod mill; 3. Cylindrical screen; 4. Connecting shell; 5. Mixing box; 6. Feeding mechanism; 61. Conveying assembly; 611. Storage box; 612. First discharge pipe; 613. Second discharge pipe; 62. Filter assembly; 621. Filter box; 622. Screw pump; 623. Conveying pipe; 624. Filter frame; 625. Slot; 7. Atomizing assembly; 71. High-pressure air pipe; 72. Atomizing nozzle; 8. Discharge through hole; 9. 91. Rotating mechanism; 92. Rotating motor; 93. Driving gear; 94. First gear ring; 95. Second gear ring; 10. Anti-clogging component; 101. Rotating rod; 102. Spiral blade; 103. Mounting plate; 104. Anti-clogging motor; 11. Water supply mechanism; 111. Water pump; 112. Main water supply pipe; 113. Branch water supply pipe; 12. Drive component; 121. Driving sprocket; 122. Driven sprocket; 123. Chain; 13. Dustproof housing. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] like Figure 1-5As shown in the figure, this application discloses a coal-water slurry thickening device, including a mounting frame 1, a feeding mechanism 6, an atomizing component 7, a rotating mechanism 9, an anti-clogging component 10, a water supply mechanism 11, and a drive component 12. A rod mill 2 and a cylindrical screen 3 are rotatably mounted between the side plates on both sides of the mounting frame 1. The rod mill 2 is located above the cylindrical screen 3, and a connecting shell 4 coaxially arranged with the cylindrical screen 3 is fixed to one end of the cylindrical screen 3. A mixing box 5 is fixed to one end of the rod mill 2, and the lower end of the mixing box 5 is fixed and connected to the top of the connecting shell 4. A plurality of discharge through holes 8 communicating with the inside of the mixing box 5 are provided through the end of the rod mill 2 near the mixing box 5. First, additives (approximately 70%–90% of the content of existing additives) are supplied into the rod mill 2 via the feeding mechanism 6. Simultaneously, water is supplied into the rod mill 2 via the water supply mechanism 11, and pulverized coal is discharged from the feed end of the rod mill 2. At this point, the rotating mechanism 9 drives the rod mill 2 to rotate, causing the grinding rods inside to grind the mixture of pulverized coal, water, and additives. The ground mixture is discharged into the mixing chamber 5 through the discharge port 8. Then, additives (approximately 10%–30% of the content of existing additives) are supplied into the mixing chamber 5 via the feeding mechanism 6. This method of diverting and injecting additives improves the utilization rate of the additives and reduces the cost of raw materials. Furthermore, the additives entering the mixing chamber 5 are atomized by the atomizing component 7. Atomization disperses the liquid into tiny droplets, significantly increasing the contact area between the liquid and solid particles, thereby improving mixing efficiency and further enhancing utilization.

[0026] A feeding mechanism 6 is mounted on the mounting frame 1 and is used to supply additives to the rod mill 2 and the mixing chamber 5. The feeding mechanism 6 includes a conveying assembly 61 and a filtering assembly 62. The conveying assembly 61 includes a storage tank 611, a first discharge pipe 612, and a second discharge pipe 613. The storage tank 611 is fixed to the top of a side plate on one side of the mounting frame 1. The first discharge pipe 612 is fixed and connected to the bottom of the storage tank 611, corresponding to the feed end of the rod mill 2. The second discharge pipe 613 is fixed and connected to the bottom of the storage tank 611. Solenoid valves are installed on both the storage tank 611 and the first discharge pipe 612. When the solenoid valves of the first discharge pipe 612 and the second discharge pipe 613 are opened, a portion of the additives in the storage tank 611 will be discharged into the rod mill 2 through the first discharge pipe 612. Another portion of the additive will be discharged from the second discharge pipe 613 to the filter assembly 62. The filter assembly 62 will filter the additive to improve its purity and prevent large particles from clogging the atomizing assembly 7.

[0027] The filter assembly 62 is used to filter the additives in the second discharge pipe 613. The filter assembly 62 includes a filter box 621, a screw pump 622, a feed pipe 623, and a filter frame 624. The filter box 621 is fixed to the mounting bracket 1, and the top of the filter box 621 has a slot 625 for insertion and connection with the filter frame 624. The end of the second discharge pipe 613 away from the storage tank 611 is located above the filter box 621, and the screw pump 622 is fixed to the filter box 621. The feed end of the screw pump 622 extends into the filter box 621, the feed pipe 623 is fixed and connected to the discharge end of the screw pump 622, and the filter frame 624 is detachably connected to the filter box 621.

[0028] Atomizing assembly 7 is mounted on mounting bracket 1 and is used to atomize the additives supplied to mixing chamber 5. Atomizing assembly 7 includes a high-pressure air pipe 71 and an atomizing nozzle 72. The high-pressure air pipe 71 is fixed and connected to the top of the feed pipe 623. A one-way valve is installed on the high-pressure air pipe 71 to control air flow, ensuring that air can only be discharged through the high-pressure air pipe 71 into the feed pipe 623. The high-pressure air pipe 71 is connected to an external high-pressure air source. The atomizing nozzle 72 is located inside the mixing chamber 5 and is connected to the feed pipe 623. The additive in the second discharge pipe 613 is discharged into the filter frame 624, where it is filtered. In addition, after the screw pump 622 starts working, the clean additive in the filter box 621 is discharged by the screw pump 622 into the feed pipe 623, and then from the feed pipe 623 into the atomizing nozzle 72. At the same time, high-pressure gas is supplied into the feed pipe 623 through the high-pressure gas pipe 71 to atomize the additive. Finally, the atomized additive is discharged from the atomizing nozzle 72 and mixed with the ground product to ensure the normal operation of the device.

[0029] A rotating mechanism 9 is mounted on a mounting frame 1 and is used to drive the rod mill 2 and the cylindrical screen 3 to rotate. The rotating mechanism 9 includes a rotating motor 91, a drive gear 92, a first gear ring 93, and a second gear ring 94. The rotating motor 91 is fixed to the mounting frame 1. The drive gear 92 is fixedly sleeved on the output end of the rotating motor 91. The first gear ring 93 is fixedly sleeved on the rod mill 2 and meshes with the drive gear 92. The second gear ring 94 is fixedly sleeved on the cylindrical screen 3 and meshes with the drive gear 92. After the rotating motor 91 operates, it drives the drive gear 92 to rotate, thereby causing the first gear ring 93 meshing with the drive gear 92, the rod mill 2 meshing with the first gear ring 93, the second gear ring 94 meshing with the drive gear 92, and the cylindrical screen 3 connected to the second gear ring 94 to all rotate, thus ensuring the normal operation of the rod mill 2 and the cylindrical screen 3.

[0030] An anti-clogging component 10 is mounted on the mixing chamber 5. The anti-clogging component 10 includes a rotating rod 101, a spiral blade 102, a mounting plate 103, and an anti-clogging motor 104. The rotating rod 101 is rotatably mounted inside the mixing chamber 5. The spiral blade 102 is fixedly sleeved on the rotating rod 101 and located inside the mixing chamber 5 near the bottom. The mounting plate 103 is fixed to the top of the mixing chamber 5, and the anti-clogging motor 104 is fixed to the mounting plate 103 and drives the rotating rod 101 to rotate. After the anti-clogging motor 104 operates, it drives the rotating rod 101 to rotate, causing the spiral blade 102 connected to the rotating rod 101 to rotate, thereby evenly discharging the product in the mixing chamber 5 into the connecting shell 4, reducing the probability of clogging in the mixing chamber 5.

[0031] The water supply mechanism 11 is mounted on the mounting frame 1 and includes a water pump 111, a main water supply pipe 112, and a branch water supply pipe 113. The water pump 111 is fixed to the mounting frame 1, and the main water supply pipe 112 is fixed and connected to the outlet end of the water pump 111. The branch water supply pipe 113 is fixed and connected to the main water supply pipe 112. Both the branch water supply pipe 113 and the main water supply pipe 112 are equipped with solenoid valves. The end of the branch water supply pipe 113 away from the main water supply pipe 112 is fixed and connected to the second discharge pipe 613. After the water pump 111 starts working, it draws external water into the main water supply pipe 112 through its inlet end, and finally discharges it into the feed end of the rod mill 2 from the main water supply pipe 112 to ensure normal grinding operation of the device. In addition, when the device is stopped, the solenoid valve on the water supply branch pipe 113 is opened, and the water flow will be discharged sequentially into the second discharge pipe 613, the feed pipe 623 and the atomizing nozzle 72 for cleaning, which reduces the probability of blockage when the second discharge pipe 613, the feed pipe 623 and the atomizing nozzle 72 are not working.

[0032] The atomizing nozzle 72 passes through the mixing box 5 and is rotatably connected. The atomizing nozzle 72 is rotatably connected to the end of the conveying pipe 623 away from the screw pump 622. The conveying pipe 623 and the atomizing nozzle 72 are sealed by a rotating shaft seal.

[0033] The drive assembly 12 is jointly mounted on the rotating rod 101 and the atomizing nozzle 72. The drive assembly 12 includes a drive sprocket 121, a driven sprocket 122, and a chain 123. The drive sprocket 121 is fixedly mounted on the rotating rod 101, and the driven sprocket 122 is fixedly mounted on the atomizing nozzle 72. The chain 123 connects the drive sprocket 121 and the driven sprocket 122, and the chain 123 meshes with both the drive sprocket 121 and the driven sprocket 122. During the rotation of the rotating rod 101, the driving sprocket 121 fixed to the rotating rod 101, the chain 123 meshing with the driving sprocket 121, the driven sprocket 122 meshing with the chain 123, and the atomizing nozzle 72 fixed to the driven sprocket 122 all rotate. The rotation of the atomizing nozzle 72 generates centrifugal force, which throws the liquid out to form an extremely thin liquid film or filamentous jet, thereby dispersing the liquid into smaller droplets, accelerating the mixing speed of the additive and the product, and improving the mixing effect of the additive and the product.

[0034] A dust cover 13 is fixed to the top of the filter box 621, and the end of the second discharge pipe 613 away from the storage box 611 is located inside the dust cover 13. This reduces the probability of additives overflowing into the filter box 621.

[0035] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A coal-water slurry thickening device, comprising a mounting frame (1), characterized in that: A rod mill (2) and a cylindrical screen (3) are rotatably mounted between the side plates on both sides of the mounting frame (1). The rod mill (2) is located above the cylindrical screen (3). One end of the cylindrical screen (3) is fixed with a connecting shell (4) coaxially arranged with the cylindrical screen (3). One end of the rod mill (2) is fixed with a mixing box (5). The lower end of the mixing box (5) is fixed and connected to the top of the connecting shell (4). The end of the rod mill (2) near the mixing box (5) is provided with multiple prongs that are connected to the inside of the mixing box (5). The mounting frame (1) is provided with a discharge through hole (8), a feeding mechanism (6) for supplying additives to the rod mill (2) and mixing box (5), an atomizing component (7) for atomizing the additives supplied to the mixing box (5), a rotating mechanism (9) for driving the rod mill (2) and cylindrical screen (3) to rotate, and a water supply mechanism (11) for supplying water to the rod mill (2).

2. The water-coal slurry thickening equipment according to claim 1, characterized in that: The feeding mechanism (6) includes a conveying assembly (61), which includes a storage box (611) fixed to the top of a side plate on one side of the mounting frame (1), a first discharge pipe (612) fixed and connected to the bottom of the storage box (611), and a second discharge pipe (613) fixed and connected to the bottom of the storage box (611). The first discharge pipe (612) corresponds to the feed end of the rod mill (2). Solenoid valves are provided on both the storage box (611) and the first discharge pipe (612). The feeding mechanism (6) also includes a filter assembly (62) for filtering the additives in the second discharge pipe (613).

3. The water-coal slurry thickening equipment according to claim 2, characterized in that: The filter assembly (62) includes a filter box (621) fixed on the mounting bracket (1), a screw pump (622) fixed on the filter box (621), a feed pipe (623) fixed and connected to the discharge end of the screw pump (622), and a filter frame (624) detachably connected to the filter box (621). The top of the filter box (621) has a slot (625) for inserting and connecting with the filter frame (624). The end of the second discharge pipe (613) away from the storage tank (611) is located in the filter box (621). Above, the feed end of the screw pump (622) extends into the filter box (621). The atomizing component (7) includes a high-pressure air pipe (71) fixed and connected to the top of the feed pipe (623) and an atomizing nozzle (72) set in the mixing box (5). The high-pressure air pipe (71) is equipped with a one-way valve that controls air to be discharged only from the high-pressure air pipe (71) into the feed pipe (623). The atomizing nozzle (72) is connected to the feed pipe (623), and the high-pressure air pipe (71) is connected to an external high-pressure air source.

4. The water-coal slurry thickening equipment according to claim 1, characterized in that: The rotating mechanism (9) includes a rotating motor (91) fixed on the mounting frame (1), a drive gear (92) fixedly sleeved on the output end of the rotating motor (91), a first gear ring (93) fixedly sleeved on the rod mill (2) and meshing with the drive gear (92), and a second gear ring (94) fixedly sleeved on the cylindrical screen (3) and meshing with the drive gear (92).

5. The coal-water slurry thickening device according to claim 3, characterized in that: The mixing tank (5) is provided with an anti-blocking component (10), which includes a rotating rod (101) rotatably installed in the mixing tank (5), a spiral blade (102) fixedly sleeved on the rotating rod (101) and located in the mixing tank (5) near the bottom of the mixing tank (5), a mounting plate (103) fixed to the top of the mixing tank (5), and an anti-blocking motor (104) fixed to the mounting plate (103) and driving the rotating rod (101) to rotate.

6. A coal-water slurry thickening device according to claim 2, characterized in that: The water supply mechanism (11) includes a water pump (111) fixed on the mounting frame (1), a water supply main pipe (112) fixed and connected to the water outlet end of the water pump (111), and a water supply branch pipe (113) fixed and connected to the water supply main pipe (112). Solenoid valves are provided on both the water supply branch pipe (113) and the water supply main pipe (112). The end of the water supply branch pipe (113) away from the water supply main pipe (112) is fixed and connected to the second discharge pipe (613).

7. The coal-water slurry thickening device according to claim 5, characterized in that: The atomizing nozzle (72) passes through the mixing box (5) and is rotatably connected. The atomizing nozzle (72) is rotatably connected to the end of the feed pipe (623) away from the screw pump (622). The feed pipe (623) and the atomizing nozzle (72) are sealed by a rotating shaft seal. The rotating rod (101) and the atomizing nozzle (72) are jointly provided with a drive assembly (12). The drive assembly (12) includes a drive sprocket (121) fixedly sleeved on the rotating rod (101), a driven sprocket (122) fixedly sleeved on the atomizing nozzle (72), and a chain (123) for connecting the drive sprocket (121) and the driven sprocket (122). The chain (123) meshes with both the drive sprocket (121) and the driven sprocket (122).

8. A coal-water slurry thickening device according to claim 3, characterized in that: The top of the filter box (621) is fixed with a dust cover (13), and the end of the second discharge pipe (613) away from the storage box (611) is located inside the dust cover (13).

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