Fluorine-containing wastewater treatment device with multi-stage filtering function

Abstract

The invention relates to the technical field of wastewater treatment, and discloses a fluorine-containing wastewater treatment device with a multistage filtering function, the fluorine-containing wastewater treatment device comprises a flocculation basin, the top end of the flocculation basin is fixedly connected with a bearing frame, the middle part of the top end of the bearing frame is fixedly connected with a gear motor, and the driving end of the gear motor is fixedly connected with a rotating shaft; the bottom end of the rotating shaft is connected with a sliding rod through an elbow, the rotating shaft is sleeved with a hollow screw rod, the bottom end of the hollow screw rod is fixedly connected with a connecting frame, the outer wall of the hollow screw rod is in threaded connection with a threaded disc, and the side wall of the threaded disc is fixedly connected with a containing frame. The treatment of fluorine-containing wastewater is high-quality and high-efficiency realized through three-stage filtration, the whole device is compact in flow, the separation of flocculate and water can be quickly realized, the separation effect is thorough, the transmission cooperation is reasonable and efficient, the use of energy-consuming equipment is reduced, the manpower is saved, and the device is low-carbon and environment-friendly.

Description

Technical Field

[0001] The present application relates to the technical field of wastewater treatment, and in particular to a fluorine-containing wastewater treatment device with a multi-stage filtration function. Background Art

[0002] In the industrial field, fluoride in the ore will escape into the wastewater at high temperature during the smelting of non-ferrous metals. The chemical industry uses fluorine-containing raw materials in the manufacturing process of phosphate fertilizers and fluorine chemical products, and the discharged wastewater also contains high concentrations of fluoride ions. The chip manufacturing and LCD panel production links in the electronics industry use reagents such as hydrofluoric acid, and the cleaning process produces fluoride-containing wastewater. In life, the fluoride released by coal combustion and garbage incineration enters the water body through rainwater washing. It is very necessary to treat fluoride-containing wastewater. From the perspective of environmental protection, if it is directly discharged without treatment, high concentrations of fluoride ions will harm the water ecology, poison aquatic organisms, and destroy the ecological balance. It will also pollute the soil and affect soil fertility and crop growth.

[0003] In the past, there were many technical problems in the treatment of fluoride-containing wastewater. The traditional flocculation sedimentation method was slow to precipitate and was easily disturbed, making it difficult for the fluoride content in the effluent to meet the standard. The flotation equipment was energy-intensive and the flocs were fragile. The addition of reagents was mostly based on experience, which easily caused waste and uneven treatment. The subsequent filtration lacked automation, and the replacement of activated carbon was cumbersome, often resulting in direct discharge of wastewater with adsorption failure. This application targets these pain points and uses innovative designs such as precise flocculation, automatic control, high-efficiency filtration, and activated carbon self-replacement to achieve high efficiency and environmental protection in the treatment of fluoride-containing wastewater. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present application provides a fluorine-containing wastewater treatment device with a multi-stage filtration function, which solves the problems of low efficiency and high energy consumption in the prior art for treating fluorine-containing wastewater.

[0005] To achieve the above objectives, the present application is implemented through the following technical solutions: a fluorine-containing wastewater treatment device with multi-stage filtering function, comprising a flocculation tank, a clean water tank for storing clean water is installed below the flocculation tank, the top of the flocculation tank is fixedly connected to a supporting frame, the middle part of the top of the supporting frame is fixedly connected to a reduction motor, the driving end of the reduction motor is fixedly connected to a rotating shaft, the bottom end of the rotating shaft is connected to a sliding rod through an elbow, the outer sleeve of the rotating shaft is provided with a hollow screw, the bottom end of the hollow screw is fixedly connected to a connecting frame, the top end of the connecting frame is fixedly connected to the bottom end of the supporting frame, the outer wall of the hollow screw is threadedly connected to a threaded disk, the sliding rod is penetrated through the inner wall of the threaded disk, the side wall of the threaded disk is fixedly connected to a placing frame, the top of the placing frame is installed with a stirring assembly, and the interior of the placing frame is installed with a filtering assembly; It also includes a feeding assembly for feeding flocculants, wherein the feeding assembly is installed on one side of the supporting frame; A valve assembly, wherein the valve assembly is mounted on the other side of the carrier; The adsorption component is used for adsorption filtration, and the adsorption component is installed below the valve component.

[0006] Preferably, the stirring assembly comprises a plurality of stirring rods fixedly connected around the placement frame, and the ends of the stirring rods are fixedly connected with stirring paddles, and the stirring paddles are arranged at an angle.

[0007] Preferably, the filter assembly comprises two semicircular filter frames, the two filter frames are spliced ​​and placed inside the placement rack, and the inner walls of the filter frames are both installed with filter nets.

[0008] Preferably, the material discharge assembly includes a feed barrel fixedly connected to one side of the supporting frame, a water inlet pipe is fixedly connected to one side of the top of the feed barrel, a storage barrel is fixedly connected to the other side of the top of the feed barrel, a partition is fixedly connected to the inner wall of the feed barrel, a transmission rod is rotatably connected to the inner wall of the partition, a plurality of transmission paddles are fixedly connected to one side of the outer wall of the transmission rod corresponding to the bottom of the water inlet pipe, a retaining ring is fixedly connected to the other side of the rod body of the transmission rod corresponding to the bottom of the storage barrel, at least one material discharge cup is installed on the inner wall of the retaining ring, and the outer surface of the retaining ring is close to the inner wall of the feed barrel.

[0009] Preferably, a discharge pipe is fixedly connected to the lower part of the baffle ring on one side of the bottom end of the feed barrel, and a water outlet pipe is fixedly connected to the lower part of the transmission paddle on the other side of the bottom end of the feed barrel, and a removable screen is installed on the inner wall of the water outlet pipe.

[0010] Preferably, the valve assembly includes a valve seat fixedly connected to one side of the bottom of the flocculation tank, the top of the valve seat is fixedly connected to a valve head, the inner wall of the valve head is slidably connected to a valve stem, the bottom end of the valve stem is fixedly connected to a valve plate, the outer wall of the valve stem is fixedly connected to a block, the outer wall of the valve stem is provided with a spring sleeved in the cavity of the valve head corresponding to the outer wall of the valve stem, an elbow is provided at the top of the valve stem, and the bottom of the elbow is close to the inner wall of the flocculation tank.

[0011] Preferably, a roller is installed at the bottom end of the valve stem elbow, and the edge of the placement rack can contact the bottom of the roller when the placement rack rises, and sealing rings are fixedly connected to the inner wall of the valve seat corresponding to both sides of the valve plate.

[0012] Preferably, the adsorption component includes a rotating rod rotatably connected to one side of the bottom end of the flocculation tank, limiting rods are fixedly connected to both sides of the outer wall of the rotating rod, the end of the rotating rod is fixedly connected to a supporting frame, the inner wall of the supporting frame is provided with a placement groove, a plurality of guide wheels are installed on both sides of the placement groove, a connecting rod is fixedly connected to one side of the bottom end of the supporting frame, a float is fixedly connected to the bottom end of the connecting rod, an activated carbon component is placed inside the supporting frame, and a storage component for storing the activated carbon component is installed on the outer wall of the water purification tank.

[0013] Preferably, the activated carbon component comprises an adsorption frame, the size of the adsorption frame is adapted to the placement groove inside the supporting frame, filter cloths are fixedly connected to both sides of the inner wall of the adsorption frame, and activated carbon layers are filled between the filter cloths.

[0014] Preferably, the storage assembly includes a mounting frame fixedly connected to the side wall of the water purification pool, a storage box is fixedly connected to the top of the mounting frame, the storage box is inclined, a storage slot is provided inside the storage box, and two arc-shaped blocking plates for blocking the storage slot are installed on the top of the supporting frame close to the side of the storage box.

[0015] Working principle: fluorine-containing wastewater is pumped into the water inlet pipe through an external device, and enters the flocculation tank after passing through the outlet pipe with a screen to remove obvious impurities such as particles, completing the first-level filtration. During the process of fluorine-containing wastewater flowing from the water inlet pipe to the outlet pipe, the impact of the water flow drives the transmission paddle to flip, so that the transmission rod drives the baffle ring to rotate. During the rotation of the baffle ring, the flocculant inside the storage barrel can enter the discharge cup. The baffle ring continues to rotate, allowing the flocculant in the discharge cup to enter the flocculation tank through the discharge pipe. The amount of flocculant added can be adjusted according to the amount of water inlet. The flocculant and After the fluorine-containing wastewater enters the flocculation tank, a flocculation reaction occurs. After the floccules are precipitated, the reduction motor drives the rotating shaft and the sliding rod to rotate, thereby driving the threaded disk and the placement rack to rotate. Since the threaded disk is threadedly connected to the hollow screw, the placement rack is raised, and the floccules are filtered through the filter net. At the same time, the low-speed rotation of the stirring paddle can further mix the fluorine-containing wastewater and the flocculant without destroying the floccules. When the placement rack rises to the top of the hollow screw, the treated water and floccules are separated by the filter net. The filter net can be cleaned by taking out the filter frame, and the placement rack is placed at the same time. The frame lifts the valve stem, and the valve stem drives the valve plate to rise, so that the valve seat is connected with the flocculation tank, and the treated water is discharged from it. After the water is discharged, the reduction motor rotates in the opposite direction, and the placement frame descends and resets to the bottom of the flocculation tank. At the same time, the valve plate is driven to close by the spring, and the discharged water enters the clean water tank after being adsorbed and filtered by the activated carbon layer in the adsorption frame. As the water level inside the clean water tank rises, the float rises and drives the bearing frame to deflect and tilt in the opposite direction. At this time, the arc-shaped baffle blocks the two sides of the storage box to prevent the new adsorption frame temporarily stored inside from sliding out, and the adsorption frame placed inside the bearing plate automatically slips off. When the water in the clean water pool is drained, the supporting frame deflects and resets under the action of gravity of the connecting rod and the float. At this time, the opening of the storage box is opposite to the placement slot of the supporting frame, and the new adsorption frame inside it automatically slides into the inside of the supporting frame, completing the automatic replacement of the activated carbon component, which is convenient for the next adsorption treatment of sewage. During the deflection process, the end of the supporting frame contacts the bottom of the flocculation tank when the limit rod rotates to limit the deflection angle. Through the above operation, the fluorine-containing wastewater can be filtered through the screen, filter and activated carbon layer in sequence to achieve efficient purification of the fluorine-containing wastewater.

[0016] The present application provides a fluorine-containing wastewater treatment device with a multi-stage filtration function. It has the following beneficial effects: 1. The treatment process of the device of this application is compact and efficient. It cooperates with a low-speed stirring paddle to enhance mixing, accelerate the formation of floccules, use a screw drive to lift the placement rack, and the filter screen to accurately separate water and floccules. Compared with traditional flocculation sedimentation and flotation methods, the time consumption is greatly shortened, and the amount of flocculant added can match the water intake. The method of adding flocculants at intervals is more conducive to the full mixing of flocculants and fluoride-containing wastewater. Each link is seamlessly connected, and the wastewater purification efficiency is significantly improved.

[0017] 2. This application is automated throughout the entire process, from wastewater inlet, flocculant addition, to water discharge and activated carbon replacement. The placement rack is lifted and linked to the valve for drainage, and the float senses water change and automatically replaces the activated carbon. There is no need for frequent manual operation and the equipment runs continuously, which not only saves manpower, but also only uses a reduction motor for the above operations. While being low-carbon and environmentally friendly, it also allows fluorine-containing wastewater to be processed quickly and uninterruptedly, greatly improving overall work efficiency.

[0018] 3. This application adopts a three-stage filtration method. The first stage uses a screen to filter the fluoride-containing wastewater to remove large particles of impurities, laying the foundation for subsequent purification. The second stage uses flocculation to make the fluoride ions in the wastewater form flocs together with other impurities and filter and separate them. The third stage uses activated carbon to further adsorb fluoride ions and other pollutants, and the water purification effect is significant. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present application; Figure 2 This is a schematic diagram of the internal structure of the flocculation tank of this application; Figure 3 This is a schematic diagram of the rack structure for this application; Figure 4 This is a schematic diagram of the blanking component structure of this application; Figure 5 This is a schematic diagram of the valve assembly structure of this application; Figure 6 This is a schematic diagram of the adsorption component structure of this application; Figure 7 This is a schematic diagram of the activated carbon component structure of this application.

[0020] Among them, 1. flocculation tank; 2. bearing frame; 3. feed barrel; 4. reduction motor; 5. valve stem; 6. valve head; 7. bearing frame; 8. mounting frame; 9. storage box; 10. water purification tank; 11. connecting frame; 12. hollow screw; 13. placement frame; 14. sliding rod; 15. roller; 16. rotating shaft; 17. filter frame; 18. filter screen; 19. threaded disc; 20. stirring rod; 21. stirring paddle; 22. transmission paddle; 23. Water inlet pipe; 24. Partition; 25. Storage barrel; 26. Discharge cup; 27. Transmission rod; 28. Retaining ring; 29. ​​Discharge pipe; 30. Water outlet pipe; 31. Spring; 32. Block; 33. Valve seat; 34. Valve plate; 35. Sealing ring; 36. Guide wheel; 37. Adsorption frame; 38. Connecting rod; 39. Float; 40. Rotating rod; 41. Limiting rod; 42. Arc-shaped retaining plate; 43. Filter cloth; 44. Activated carbon layer. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings of the specification of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] Example: Please refer to the attached Figure 1-3 The embodiment of the present application provides a fluorine-containing wastewater treatment device with a multi-stage filtration function, including a flocculation tank 1, a water purification tank 10 for storing purified water is installed below the flocculation tank 1, a water outlet with a sealing cover is arranged at the bottom of the water purification tank 10, a carrier frame 2 is fixedly connected to the top of the carrier frame 2, a reduction motor 4 is fixedly connected to the middle of the top of the carrier frame 2, a rotating shaft 16 is fixedly connected to the driving end of the reduction motor 4, a sliding rod 14 is connected to the bottom of the rotating shaft 16 through an elbow, a hollow screw 12 is sleeved on the outside of the rotating shaft 16, a connecting frame 11 is fixedly connected to the bottom end of the hollow screw 12, and the top of the connecting frame 11 is fixedly connected to the carrier frame 2. At the bottom end of the rack 2, the outer wall of the hollow screw 12 is threadedly connected to a threaded disk 19, the sliding rod 14 is inserted into the inner wall of the threaded disk 19, the side wall of the threaded disk 19 is fixedly connected to a placement rack 13, a stirring assembly is installed at the top of the placement rack 13, and a filtering assembly is installed inside the placement rack 13; the stirring assembly includes a plurality of stirring rods 20 fixedly connected around the placement rack 13, the ends of the stirring rods 20 are fixedly connected to stirring paddles 21, and the stirring paddles 21 are inclined; the filtering assembly includes two semicircular filtering frames 17, the two filtering frames 17 are spliced ​​and placed inside the placement rack 13, and the inner walls of the filtering frames 17 are installed with filter screens 18.

[0023] Specifically, after the flocculant and the fluorine-containing wastewater enter the flocculation tank 1, a flocculation reaction occurs, and the reaction time is 5-8 minutes. After the floccules are precipitated, the reduction motor 4 drives the rotating shaft 16 and the sliding rod 14 to rotate. The reduction motor 4 provides stable and controllable power to ensure the precise execution of subsequent actions, thereby driving the threaded disk 19 and the placement rack 13 to rotate. Since the threaded disk 19 is threadedly connected to the hollow screw 12, the placement rack 13 is raised, and the floccules are filtered through the filter screen 18. At the same time, the low-speed rotation of the stirring paddle 21 can further The fluorine-containing wastewater and the flocculant are mixed without destroying the flocs. The low-speed rotation can not only enhance the mixing effect and promote a more complete flocculation reaction, but also will not break up the formed flocs due to the appropriate speed, thereby ensuring smooth filtration. When the placement rack 13 rises to the top of the hollow screw 12, the treated water and the flocs are separated by the filter screen 18. The filter screen 18 can be cleaned by taking out the filter frame 17. The operation is convenient and the equipment is easy to maintain. The above separation method is more efficient and thorough than traditional flocculation sedimentation or flotation separation.

[0024] Please refer to the attached Figure 1 , Figure 2 and Figure 4 , a feeding assembly for feeding flocculants, the feeding assembly is installed on one side of the supporting frame 2, and the feeding assembly includes a feeding barrel 3 fixedly connected to one side of the supporting frame 2, a water inlet pipe 23 is fixedly connected to one side of the top of the feeding barrel 3, a storage barrel 25 is fixedly connected to the other side of the top of the feeding barrel 3, a partition 24 is fixedly connected to the inner wall of the feeding barrel 3, a transmission rod 27 is rotatably connected to the inner wall of the partition 24, and a plurality of transmission rods 27 are fixedly connected to the lower side of the water inlet pipe 23 on one side of the outer wall of the transmission rod 27. The dry transmission paddle 22 and the transmission rod 27 are fixedly connected with a baffle ring 28 on the other side of the rod body corresponding to the bottom of the storage barrel 25, and at least one discharge cup 26 is installed on the inner wall of the baffle ring 28. The outer surface of the baffle ring 28 is close to the inner wall of the feed barrel 3, and a discharge pipe 29 is fixedly connected to the bottom of the baffle ring 28 on one side of the bottom end of the feed barrel 3, and a water outlet pipe 30 is fixedly connected to the other side of the bottom end of the feed barrel 3 corresponding to the bottom of the transmission paddle 22, and a detachable screen is installed on the inner wall of the water outlet pipe 30.

[0025] Specifically, the fluorine-containing wastewater is pumped into the water inlet pipe 23 through an external device. In this process, the external device can be a water pump, which can provide stable power to ensure that the fluorine-containing wastewater continuously and stably enters the treatment process. The wastewater then passes through the outlet pipe 30 with a screen to remove obvious impurities such as particles and enters the flocculation tank 1 to complete the first-level filtration. The screen can effectively intercept impurities such as silt, large plastic fragments, etc. in the wastewater to prevent these impurities from entering the subsequent treatment links and affecting the operation of the equipment and the treatment effect. The wastewater is preliminarily purified, laying the foundation for subsequent fine treatment. In the process of the fluorine-containing wastewater flowing from the water inlet pipe 23 to the outlet pipe 30, the driving paddle 22 is turned over due to the impact of the water flow, and the energy of the water flow itself is cleverly used to achieve The automatic operation is now implemented, and no additional power is required to drive the transmission paddle 22, so that the transmission rod 27 drives the baffle ring 28 to rotate. During the rotation of the baffle ring 28, the flocculant inside the storage barrel 25 can enter the discharge cup 26, and the baffle ring 28 continues to rotate so that the flocculant in the discharge cup 26 enters the flocculation tank 1 through the discharge pipe 29. The amount of flocculant added can be adjusted accordingly according to the water intake. This automatic and accurate flocculant addition method has obvious advantages. On the one hand, it can be adjusted according to the water intake to ensure that the ratio of flocculant to wastewater is always appropriate, avoiding waste caused by excessive flocculant and subsequent processing difficulties, or poor flocculation effect caused by too little flocculant; on the other hand, automated operation reduces manpower input and improves processing efficiency.

[0026] Please refer to the attached Figure 1 , Figure 2 and Figure 5 , the valve assembly is installed on the other side of the supporting frame 2, the valve assembly includes a valve seat 33 fixedly connected to one side of the bottom of the flocculation tank 1, the top of the valve seat 33 is fixedly connected to a valve head 6, the inner wall of the valve head 6 is slidably connected to a valve stem 5, the bottom end of the valve stem 5 is fixedly connected to a valve plate 34, the outer wall of the valve stem 5 is fixedly connected to a stopper 32, the outer wall of the valve stem 5 is sleeved with a spring 31 corresponding to the cavity of the valve head 6, the top of the valve stem 5 is provided with an elbow, the bottom of the elbow is close to the inner wall of the flocculation tank 1, the bottom end of the elbow of the valve stem 5 is installed with a roller 15, and when the placement frame 13 rises, its edge can contact the bottom of the roller 15, and the inner wall of the valve seat 33 is fixedly connected to both sides of the valve plate 34.

[0027] Specifically, the placement rack 13 rises to separate the flocculants and lifts the valve stem 5 at the same time. The valve stem 5 drives the valve plate 34 to rise, so that the valve seat 33 is connected with the flocculation tank 1, and the treated water is discharged from it. After the water is discharged, the reduction motor 4 rotates in the opposite direction, and the placement rack 13 descends and resets to the bottom of the flocculation tank 1. At the same time, the valve plate 34 is driven to close by the spring 31. The whole process has a high degree of automation and reduces manual intervention. By setting the roller 15, the friction between the elbow of the valve stem 15 and the edge of the placement rack 13 can be reduced, so that the valve stem 15 can be smoothly lifted up.

[0028] Please refer to the attached Figure 1 , Figure 6 and Figure 7 , an adsorption component for adsorption filtration, the adsorption component is installed below the valve component, the adsorption component includes a rotating rod 40 rotatably connected to one side of the bottom end of the flocculation tank 1, the outer wall of the rotating rod 40 is fixedly connected to the limit rod 41 on both sides, the end of the rotating rod 40 is fixedly connected to the bearing frame 7, the inner wall of the bearing frame 7 is provided with a placement groove, and a plurality of guide wheels 36 are installed on both sides of the placement groove, a connecting rod 38 is fixedly connected to one side of the bottom end of the bearing frame 7, and a floating ball 39 is fixedly connected to the bottom end of the connecting rod 38, an activated carbon component is placed inside the bearing frame 7, and the outer wall of the water purification tank 10 is installed A storage component for storing an activated carbon component, the activated carbon component includes an adsorption frame 37, the size of the adsorption frame 37 is adapted to the placement groove inside the supporting frame 7, filter cloths 43 are fixedly connected to both sides of the inner wall of the adsorption frame 37, and an activated carbon layer 44 is filled between the filter cloths 43. The storage component includes a mounting frame 8 fixedly connected to the side wall of the water purification pool 10, a storage box 9 is fixedly connected to the top of the mounting frame 8, the storage box 9 is tilted, a storage groove is opened inside the storage box 9, and two arc-shaped blocking pieces 42 for blocking the storage groove are installed on the top side of the supporting frame 7 close to the storage box 9.

[0029] Specifically, the discharged water enters the clean water pool 10 after being adsorbed and filtered by the activated carbon layer 44 in the adsorption frame 37. The activated carbon layer 44, with its porous structure, can effectively adsorb the fluoride ions and other tiny impurities remaining in the wastewater, further improving the water quality. As the water level inside the clean water pool 10 rises, the float 39 pushes up and drives the supporting frame 7 to deflect and tilt in the opposite direction. At this time, the arc-shaped baffle 42 blocks the two sides of the storage box 9 to prevent the new adsorption frame 37 temporarily stored inside from sliding out, and the adsorption frame 37 placed inside the supporting plate 7 automatically slips off. When the water in the clean water pool 10 is discharged, the supporting frame 7 deflects and resets under the action of the gravity of the connecting rod 38 and the float 39. At this time The opening of the storage box 9 is opposite to the placement slot of the supporting frame 7, and the new adsorption frame 37 inside it automatically slides out and is guided to the inside of the supporting frame 7 through the guide wheel 36, completing the automatic replacement of the activated carbon component, which is convenient for the next adsorption treatment of sewage. The automatic replacement function greatly reduces the maintenance workload and ensures the long-term and efficient operation of the equipment. During the deflection process, the end of the supporting frame 7 contacts the bottom of the flocculation tank 1 when the limit rod 41 rotates to control the deflection angle, ensuring that the supporting frame 7 moves stably and accurately. Through the above operation, the fluorine-containing wastewater can be filtered through the screen, the filter 18 and the activated carbon layer 44 in sequence to achieve efficient purification of the fluorine-containing wastewater.

[0030] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A fluorine-containing wastewater treatment device with multi-stage filtration function, characterized in that: The invention comprises a flocculation tank (1), wherein a clean water tank (10) for storing clean water is installed below the flocculation tank (1), a support frame (2) is fixedly connected to the top of the flocculation tank (1), a reduction motor (4) is fixedly connected to the middle of the top of the support frame (2), a rotating shaft (16) is fixedly connected to the driving end of the reduction motor (4), a sliding rod (14) is connected to the bottom of the rotating shaft (16) via an elbow, a hollow screw (12) is sleeved on the outside of the rotating shaft (16), and the hollow screw (12) is fixedly connected to the driving end of the reduction motor (4). The bottom end of the core screw (12) is fixedly connected to a connecting frame (11), the top end of the connecting frame (11) is fixedly connected to the bottom end of the supporting frame (2), the outer wall of the hollow screw (12) is threadedly connected to a threaded disk (19), the sliding rod (14) is passed through the inner wall of the threaded disk (19), the side wall of the threaded disk (19) is fixedly connected to a placement frame (13), the top end of the placement frame (13) is equipped with a stirring assembly, and the interior of the placement frame (13) is equipped with a filtering assembly; It also includes a material discharge component for dispensing flocculants, wherein the material discharge component is installed on one side of the supporting frame (2); A valve assembly, wherein the valve assembly is mounted on the other side of the support frame (2); The adsorption component is used for adsorption filtration, and the adsorption component is installed below the valve component.

2. A fluorine-containing wastewater treatment device with multi-stage filtration function according to claim 1, characterized in that: The stirring assembly comprises a plurality of stirring rods (20) fixedly connected around the placement frame (13), the ends of the stirring rods (20) are fixedly connected to stirring paddles (21), and the stirring paddles (21) are arranged at an angle.

3. The fluorine-containing wastewater treatment device with multi-stage filtration function according to claim 1, characterized in that: The filter assembly comprises two semicircular filter frames (17), the two filter frames (17) are spliced ​​and placed inside the placement frame (13), and the inner walls of the filter frames (17) are both installed with filter screens (18).

4. The fluorine-containing wastewater treatment device with multi-stage filtration function according to claim 1, characterized in that: The material discharge assembly comprises a feed barrel (3) fixedly connected to one side of the support frame (2); a water inlet pipe (23) is fixedly connected to one side of the top of the feed barrel (3); a material storage barrel (25) is fixedly connected to the other side of the top of the feed barrel (3); a partition plate (24) is fixedly connected to the inner wall of the feed barrel (3); a transmission rod (27) is rotatably connected to the inner wall of the partition plate (24); a plurality of transmission paddles (22) are fixedly connected to one side of the outer wall of the transmission rod (27) corresponding to the lower part of the water inlet pipe (23); a retaining ring (28) is fixedly connected to the other side of the rod body of the transmission rod (27) corresponding to the lower part of the material storage barrel (25); at least one material discharge cup (26) is installed on the inner wall of the retaining ring (28); and the outer surface of the retaining ring (28) is close to the inner wall of the feed barrel (3).

5. The fluorine-containing wastewater treatment device with multi-stage filtration function according to claim 4, characterized in that: A discharge pipe (29) is fixedly connected to one side of the bottom end of the feed barrel (3) corresponding to below the retaining ring (28), and a water outlet pipe (30) is fixedly connected to the other side of the bottom end of the feed barrel (3) corresponding to below the transmission paddle (22), and a detachable screen is installed on the inner wall of the water outlet pipe (30).

6. The fluorine-containing wastewater treatment device with multi-stage filtration function according to claim 1, characterized in that: The valve assembly comprises a valve seat (33) fixedly connected to one side of the bottom of the flocculation tank (1); the top of the valve seat (33) is fixedly connected to a valve head (6); the inner wall of the valve head (6) is slidably connected to a valve stem (5); the bottom end of the valve stem (5) is fixedly connected to a valve plate (34); the outer wall of the valve stem (5) is fixedly connected to a stopper (32); the outer wall of the valve stem (5) is provided with a spring (31) in a cavity corresponding to the valve head (6); the top of the valve stem (5) is provided with an elbow, and the bottom of the elbow is close to the inner wall of the flocculation tank (1).

7. The fluorine-containing wastewater treatment device with multi-stage filtration function according to claim 6, characterized in that: A roller (15) is installed at the bottom end of the valve stem (5) elbow, and the edge of the placement frame (13) can contact the bottom of the roller (15) when the placement frame (13) rises. The inner wall of the valve seat (33) corresponding to the valve plate (34) is fixedly connected with a sealing ring (35) on both sides.

8. The fluorine-containing wastewater treatment device with multi-stage filtration function according to claim 1, characterized in that: The adsorption component comprises a rotating rod (40) rotatably connected to one side of the bottom end of the flocculation tank (1), the outer walls of the rotating rod (40) are fixedly connected to limiting rods (41) on both sides, the end of the rotating rod (40) is fixedly connected to a supporting frame (7), the inner wall of the supporting frame (7) is provided with a placement groove, and a plurality of guide wheels (36) are installed on both sides of the placement groove, the bottom end of the supporting frame (7) is fixedly connected to a connecting rod (38), the bottom end of the connecting rod (38) is fixedly connected to a floating ball (39), an activated carbon component is placed inside the supporting frame (7), and a storage component for storing the activated carbon component is installed on the outer wall of the water purification tank (10).

9. The fluorine-containing wastewater treatment device with multi-stage filtration function according to claim 8, characterized in that: The activated carbon component comprises an adsorption frame (37), the size of the adsorption frame (37) being adapted to the internal placement groove of the supporting frame (7), filter cloths (43) being fixedly connected to both sides of the inner wall of the adsorption frame (37), and an activated carbon layer (44) being filled between the filter cloths (43).

10. The fluorine-containing wastewater treatment device with multi-stage filtration function according to claim 8, characterized in that: The storage assembly comprises a mounting frame (8) fixedly connected to a side wall of a water purification pool (10); a storage box (9) is fixedly connected to the top of the mounting frame (8); the storage box (9) is arranged obliquely; a storage slot is provided inside the storage box (9); and two arc-shaped blocking pieces (42) for blocking the storage slot are installed on a side of the top of the supporting frame (7) close to the storage box (9).

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