A waste water treatment device for a fluorescent whitening agent

Abstract

The application discloses a fluorescent whitening agent wastewater treatment device, including a treatment box, a water inlet mechanism is installed through one side of the treatment box, for wastewater to enter the inside of the treatment box, the setting of the filter mechanism can realize multi-stage efficient filtration, when the supernatant is extracted, the micro-impurity filter plate will play a role first, which is arranged in a plurality of through holes in the bottom of the inner sliding shell, can accurately intercept the small flocculation in the wastewater, effectively block these small flocculation into the subsequent filtering link, the water filtered by the micro-impurity filter plate will enter the filter cover, the filter screen on the top of the surface of the filter cover can further screen the possible residual impurities in the water, and the reset spring and the baffle in the inner cavity top of the filter cover can be adjusted according to the water pressure when the water is extracted, when the water pressure changes, the baffle slides in the filter cover, controls the inflow and outflow of water flow, ensures the stability and efficiency of the filtering process.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a wastewater treatment device for fluorescent whitening agents. Background Technology

[0002] Currently, existing fluorescent whitening agent wastewater treatment devices cannot effectively handle the wastewater at the separation point between the clear liquid and flocculent matter when discharging the supernatant from the settled wastewater, which easily leads to the flocculent matter containing a large amount of clear liquid. In the prior art, as shown in the wastewater treatment device for fluorescent whitening agents for PVC plastics with the authorization announcement number "CN222923025U", the device can block flocculent matter by setting a fine filter screen, so that more clear liquid can be extracted, thereby improving the separation effect.

[0003] However, existing technologies still have significant shortcomings, such as: In the prior art, the above-mentioned treatment device uses a fine filter screen to squeeze the flocculent sediment layer when extracting the supernatant, so as to squeeze out the clear liquid encapsulated therein for extraction. However, in actual use, the device relies solely on the fine filter screen to filter the flocculent matter in the water. The strong mechanical squeezing will destroy the stable structure of the flocculent matter. During the extraction of the clear liquid, the smaller flocculent matter inside is difficult to filter, which seriously reduces the quality of the effluent. Summary of the Invention

[0004] The purpose of this invention is to provide a wastewater treatment device for fluorescent whitening agents to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wastewater treatment device for fluorescent whitening agents, comprising a treatment tank, wherein a water inlet mechanism is installed through one side of the treatment tank for wastewater to enter the interior of the treatment tank; the water inlet mechanism includes a filter housing connected to the top of one side of the treatment tank, a water inlet pipe connected to one side of the filter housing, a dosing pipe for adding chemicals connected to the top of the water inlet pipe, and a discharge pipe for removing impurities connected to the other side of the water inlet pipe; The filtration unit, installed inside the treatment tank, is used to filter flocculent matter in the wastewater; The filtration mechanism includes two screws rotatably mounted on one side of the inside of the processing box, and a vertical slide bar fixedly mounted on the other side of the inside of the processing box. Flocculent filter elements are slidably mounted on the surfaces of both the screws and the vertical slide bar, and the flocculent filter elements are threadedly connected to the two screws. A water tank is fixedly installed at the bottom of one side of the treatment box, and a water pump is installed at the top of the water tank. The outlet end of the water pump passes through the water tank and is connected to it. The inlet end of the water pump is connected to a connecting pipe. The end of the connecting pipe away from the water pump passes through the treatment box and extends to the top of the inner cavity of the treatment box. A suction pipe for pumping water is fixedly installed on one side of the top of the flocculent filter element, and a flexible hose is connected between the suction pipe and the connecting pipe. A third bevel gear is fixedly installed on the bottom of the surface of the screw, and a servo motor is fixedly installed on the bottom of one side of the processing box. The output end of the servo motor passes through the processing box and extends into the interior of the processing box. A fourth bevel gear is fixedly installed on the output end of the servo motor, and the fourth bevel gear and the third bevel gear are meshed together.

[0006] Preferably, the flocculent filter element includes a fine filter plate threaded to the surfaces of two screws, an outer mounting frame is fixedly installed at the bottom of the fine filter plate, an inner sliding shell is slidably installed inside the outer mounting frame, and a plurality of through holes are opened at the bottom of the inner sliding shell, and micro-impurity filter plates are fixedly installed inside the plurality of through holes. Several filter covers are fixedly installed inside the inner sliding shell and at the top of the through hole. The filter covers are fixedly installed on the top of the micro-impurity filter plate. A filter screen for water inlet is provided on the top surface of the filter cover. A return spring is fixedly installed on the top of the inner cavity of the filter cover. A baffle is fixedly installed on the bottom end of the return spring. The baffle slides inside the filter cover.

[0007] Preferably, a reciprocating screw is rotatably mounted on one side of the bottom of the inner sliding shell, and a transverse slide rod is fixedly mounted on the other side of the bottom of the inner sliding shell. Both the reciprocating screw and the transverse slide rod are fitted with mounting housings. A plurality of clamping springs are fixedly installed at the bottom of the inner cavity of the mounting housing, and a telescopic frame is fixedly installed at the top of each of the clamping springs. The top of the telescopic frame passes through the mounting housing and is slidably connected to it. A brush plate is fixedly installed at the top of the telescopic frame, and the top of the brush plate is in contact with the bottom of the inner sliding shell.

[0008] Preferably, a rack is embedded on one side of one of the vertical slide rods, and a linkage gear is fixedly installed at one end of the reciprocating screw. The linkage gear and the rack are meshed together to clean the flocculent material attached to the bottom of the flocculent filter element when it is raised and lowered.

[0009] Preferably, the outer wall of the inner sliding shell is provided with a plurality of limiting grooves, and the inner wall of the outer mounting frame is fixedly installed with a limiting slider having the same number of limiting grooves. The inner sliding shell is slidably installed inside the outer mounting frame through the limiting grooves.

[0010] Preferably, a drive motor is fixedly installed on the top of the filter housing, and the output end of the drive motor passes through the filter housing and extends into the interior of the filter housing. A vertical rod is fixedly installed on the output end of the drive motor, and the bottom end of the vertical rod passes through the filter housing and extends to the bottom of the filter housing. Four rotating filter plates are fixedly installed on the surface of the vertical rod inside the filter housing, and a filter impurity plate is fixedly installed at the connection between the filter housing and the treatment box for filtering impurities in the wastewater.

[0011] Preferably, three stirring paddles for stirring are rotatably installed at the bottom of the inner cavity of the processing box, and one end of each of the three stirring paddles passes through the processing box and extends to the outside of the processing box. A first bevel gear is fixedly installed at the bottom of the surface of the vertical rod, and a second bevel gear is fixedly installed at one end of the stirring paddle located outside the processing box. The first bevel gear and the second bevel gear are meshed together. One of the agitators is fixedly mounted with a dual-shaft pulley on its surface outside the processing tank, while the other two agitators are each mounted with a driven pulley on their surfaces outside the processing tank. A first belt is wound around the surface of each of the driven pulleys, and the dual-shaft pulleys and the driven pulleys are connected by the first belt drive.

[0012] Preferably, a linkage pulley is fixedly installed at the bottom of the surface of each of the two screws, and a second belt is wound around the surface of each of the two linkage pulleys. The two linkage pulleys are connected by a second belt drive to drive the two screws to move synchronously.

[0013] Preferably, a drain pipe is connected to the bottom of one side of the water tank, and the drain pipe is connected to an external drain pipe for discharging the treated wastewater; a valve is connected to a flange at one end of the drain pipe.

[0014] Preferably, a protective shell is fixedly installed on both the inside and outside of the processing box to protect the third bevel gear, the fourth bevel gear, the first bevel gear, and the second bevel gear.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. The filtration mechanism of this invention enables multi-stage high-efficiency filtration. When the supernatant is extracted, the micro-impurity filter plate, located in several through holes at the bottom of the inner sliding shell, first takes effect. It can accurately intercept tiny flocculent particles in the wastewater, effectively preventing these tiny flocculent particles from entering the subsequent filtration stages. The water filtered by the micro-impurity filter plate enters the filter cover. The filter screen on the top of the filter cover can further screen any impurities that may remain in the water. The reset spring and baffle on the top of the filter cover cavity can be adjusted according to the water pressure during pumping. When the water pressure changes, the baffle slides inside the filter cover to control the water flow in and out, ensuring the stability and efficiency of the filtration process. Finally, the water is filtered again by the fine filter plate, which can intercept flocculent particles in the clear liquid again. Through this layer-by-layer filtration method, this invention effectively solves the problem of the difficulty in filtering tiny flocculent particles in the prior art, which affects the quality of the effluent. 2. This invention, through the cleaning structure at the bottom of the inner sliding shell, enables the reciprocating screw to rotate via the meshing of the linkage gear and rack when the flocculent filter element is raised or lowered. This, in turn, causes the mounting housing to move the brush plate back and forth at the bottom of the inner sliding shell, cleaning the flocculent material at the bottom of the flocculent filter element. Under the action of the clamping spring and the telescopic frame, the brush plate is tightly fitted to the bottom of the inner sliding shell, automatically cleaning the attached flocculent material, ensuring the filtration performance of the micro-impurity filter plate, reducing the trouble of manual cleaning, and further improving the efficiency of the device. 3. Through the water inlet mechanism, the filter housing and rotating filter plate in the water inlet mechanism can perform preliminary filtration of wastewater entering the treatment tank, removing larger impurities. At the same time, the drive motor drives the vertical rod to rotate. The rotating filter plate on the vertical rod can not only filter impurities, but also make the wastewater flow in the filter housing, improving filtration efficiency. In addition, the vertical rod drives the stirring paddle to rotate through the first bevel gear and the second bevel gear. The three stirring paddles are synchronously stirred under the transmission of the double-shaft pulley, the driven pulley and the first belt, so that the wastewater and the added agent are fully mixed, promoting the formation of flocs and providing better conditions for subsequent filtration treatment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the filtration mechanism of the present invention; Figure 4 This is a schematic diagram of the structure of the flocculent filter element of the present invention; Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A; Figure 6This is a cross-sectional view of the filter cover of the present invention; Figure 7 This is a schematic diagram of the brush plate structure of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point B; Figure 9 This is a cross-sectional view of the mounting housing of the present invention; Figure 10 This is a cross-sectional structural schematic diagram of the filter housing of the present invention; Figure 11 For the present invention Figure 10 A magnified structural diagram at point C.

[0017] In the diagram: 1. Treatment tank; 2. Water inlet mechanism; 21. Filter housing; 22. Water inlet pipe; 23. Chemical dosing pipe; 24. Impurity discharge pipe; 25. Vertical rod; 26. Rotating filter plate; 27. Agitator; 28. First bevel gear; 29. ​​Second bevel gear; 201. Dual-shaft pulley; 202. Driven pulley; 203. First belt; 204. Drive motor; 3. Filtration mechanism; 31. Screw; 32. Vertical slide bar; 33. Flocculent material filter element; 331. Fine filter plate; 332. Outer mounting frame; 333. Inner sliding shell; 334. Micro-impurity filter plate; 335. Filter cover; 336, return spring; 337, baffle; 338, reciprocating screw; 339, transverse slide bar; 3301, mounting housing; 3302, clamping spring; 3303, telescopic frame; 3304, brush plate; 3305, rack; 3306, linkage gear; 3307, limit slide groove; 34, water pump; 35, connecting pipe; 36, suction pipe; 37, hose; 38, third bevel gear; 39, servo motor; 301, fourth bevel gear; 302, linkage pulley; 303, second belt; 304, water tank; 305, drain pipe; 306, valve. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-11The present invention provides a technical solution: a wastewater treatment device for fluorescent whitening agents, including a treatment tank 1, an inlet mechanism 2 installed through one side of the treatment tank 1 for wastewater to enter the interior of the treatment tank 1; the inlet mechanism 2 includes a filter housing 21 connected to the top of one side of the treatment tank 1, an inlet pipe 22 connected to one side of the filter housing 21, a dosing pipe 23 for adding chemicals connected to the top of the inlet pipe 22, and a discharge pipe 24 for discharging impurities connected to the other side of the inlet pipe 22; The filter unit 3 is installed inside the treatment tank 1 to filter flocculent matter in the wastewater; The filtration mechanism 3 includes two screws 31 rotatably mounted on one side of the inside of the treatment box 1, and a vertical slide bar 32 is fixedly mounted on the other side of the inside of the treatment box 1. Flocculent filter elements 33 are slidably mounted on the surfaces of both the screws 31 and the vertical slide bar 32, and the flocculent filter elements 33 are threadedly connected to the two screws 31. A water tank 304 is fixedly installed at the bottom of one side of the treatment box 1, and a water pump 34 is installed at the top of the water tank 304. The outlet end of the water pump 34 passes through the water tank 304 and is connected to it. The inlet end of the water pump 34 is connected to a connecting pipe 35. The end of the connecting pipe 35 away from the water pump 34 passes through the treatment box 1 and extends to the top of the inner cavity of the treatment box 1. A suction pipe 36 for pumping water is fixedly installed on one side of the top of the flocculent filter element 33, and a flexible hose 37 is connected between the suction pipe 36 and the connecting pipe 35. A third bevel gear 38 is fixedly installed on the bottom of the surface of a screw 31. A servo motor 39 is fixedly installed on the bottom of one side of the processing box 1. The output end of the servo motor 39 passes through the processing box 1 and extends into the interior of the processing box 1. A fourth bevel gear 301 is fixedly installed on the output end of the servo motor 39. The fourth bevel gear 301 and the third bevel gear 38 are meshed. In this embodiment, the water pump 34 draws the supernatant into the water tank 304 through the connecting pipe 35, the hose 37 and the suction pipe 36. The servo motor 39 drives the fourth bevel gear 301 to mesh with the third bevel gear 38, causing the screw 31 to rotate and drive the flocculent filter element 33 to rise and fall, so as to adjust the position of the flocculent filter element 33, squeeze the flocculent, and allow the internal supernatant to be fully discharged.

[0020] Reference Figure 3 , Figure 4 as well as Figure 6 As shown, the flocculent filter element 33 includes a fine filter plate 331 threadedly connected to the surface of two screws 31. An outer mounting frame 332 is fixedly installed at the bottom of the fine filter plate 331. An inner sliding shell 333 is slidably installed inside the outer mounting frame 332. Several through holes are opened at the bottom of the inner sliding shell 333, and micro-impurity filter plates 334 are fixedly installed inside the several through holes. Several filter covers 335 are fixedly installed inside the inner sliding shell 333 and at the top of the through hole. The filter covers 335 are fixedly installed on the top of the micro-impurity filter plate 334. A filter screen for water inlet is provided on the top surface of the filter cover 335. A return spring 336 is fixedly installed on the top of the inner cavity of the filter cover 335. A baffle 337 is fixedly installed on the bottom end of the return spring 336. The baffle 337 slides inside the filter cover 335. In this embodiment, when the wastewater is filtered through multiple stages by the micro-impurity filter plate 334, the filter cover 335, and the fine filter plate 331, the return spring 336 and the baffle 337 can adjust the water flow, thereby achieving multi-stage filtration, ensuring filtration effect, and improving the quality of the effluent.

[0021] Reference Figure 7 , Figure 8 as well as Figure 9 As shown, a reciprocating screw 338 is rotatably mounted on one side of the bottom of the inner sliding shell 333, and a transverse slide rod 339 is fixedly mounted on the other side of the bottom of the inner sliding shell 333. Mounting housings 3301 are mounted on the surfaces of both the reciprocating screw 338 and the transverse slide rod 339. A number of clamping springs 3302 are fixedly installed at the bottom of the inner cavity of the mounting housing 3301, and a telescopic frame 3303 is fixedly installed at the top of each of the clamping springs 3302. The top of the telescopic frame 3303 passes through the mounting housing 3301 and is slidably connected to it. A brush plate 3304 is fixedly installed at the top of the telescopic frame 3303, and the top of the brush plate 3304 is in contact with the bottom of the inner sliding shell 333. A rack 3305 is embedded on one side of a vertical slide bar 32, and a linkage gear 3306 is fixedly installed at one end of a reciprocating screw 338. The linkage gear 3306 and the rack 3305 are meshed together to clean the flocculent material attached to the bottom of the flocculent material filter element 33 when it is raised and lowered. In this embodiment, when the flocculent filter element 33 is raised or lowered, the linkage gear 3306 meshes with the rack 3305, driving the reciprocating screw 338 to rotate, so that the brush plate 3304 reciprocates to clean the micro-impurity filter plate 334, thereby ensuring the advantages of filtration performance.

[0022] Reference Figure 4 As shown, the outer wall of the inner sliding shell 333 is provided with a number of limiting slide grooves 3307, and the inner wall of the outer mounting frame 332 is fixedly installed with the same number of limiting slide blocks as the limiting slide grooves 3307. The inner sliding shell 333 is slidably installed inside the outer mounting frame 332 through the limiting slide grooves 3307. In this embodiment, the inner sliding shell 333 slides within the outer mounting frame 332 via the limiting slide groove 3307 and the limiting slider to ensure the sliding stability of the inner sliding shell 333 and make the filtration process more stable.

[0023] Reference Figure 10 As shown, a drive motor 204 is fixedly installed on the top of the filter housing 21, and the output end of the drive motor 204 passes through the filter housing 21 and extends into the interior of the filter housing 21. A vertical rod 25 is fixedly installed on the output end of the drive motor 204, and the bottom end of the vertical rod 25 passes through the filter housing 21 and extends to the bottom of the filter housing 21. Four rotating filter plates 26 are fixedly installed on the surface of the vertical rod 25 inside the filter housing 21, and a filter impurity plate is fixedly installed at the connection between the filter housing 21 and the treatment box 1, for filtering impurities in the wastewater. In this embodiment, wastewater flows into the filter housing 21 through the inlet pipe 22, adds chemicals through the dosing pipe 23, discharges some impurities through the discharge pipe 24, and drives the vertical rod 25 and the rotating filter plate 26 to rotate for filtration. The filter plate performs secondary filtration, thereby initially filtering impurities and adding chemicals to create conditions for subsequent treatment.

[0024] Reference Figure 2 , Figure 10 as well as Figure 11 As shown, three stirring paddles 27 for stirring are rotatably mounted at the bottom of the inner cavity of the processing tank 1, and one end of each of the three stirring paddles 27 passes through the processing tank 1 and extends to the outside of the processing tank 1. A first bevel gear 28 is fixedly mounted on the bottom of the surface of the vertical rod 25, and a second bevel gear 29 is fixedly mounted on the end of one stirring paddle 27 located outside the processing tank 1. The first bevel gear 28 and the second bevel gear 29 are meshed together. A double-shaft pulley 201 is fixedly mounted on the surface of one stirring paddle 27 located outside the processing tank 1, while the other two stirring paddles 27 are each mounted on the surface of the other two stirring paddles 27 located outside the processing tank 1. A first belt 203 is wound around the surface of each of the two driven pulleys 202. The double-shaft pulley 201 and the driven pulleys 202 are connected by the first belt 203. In this embodiment, the vertical rod 25 drives the first bevel gear 28 to mesh with the second bevel gear 29, causing one stirring paddle 27 to rotate. The other two stirring paddles 27 are driven to rotate synchronously through the double-shaft pulley 201, the driven pulley 202 and the first belt 203, thereby enabling multiple stirring paddles 27 to stir synchronously at one time, improving stirring efficiency and promoting the mixing of the reagent and wastewater.

[0025] Reference Figure 4 as well as Figure 5 As shown, a linkage pulley 302 is fixedly installed on the bottom of the surface of each of the two screws 31. A second belt 303 is wound around the surface of each of the two linkage pulleys 302, and the two linkage pulleys 302 are connected by the second belt 303 to drive the two screws 31 to move synchronously. In this embodiment, the two linked pulleys 302 are driven by the second belt 303 to drive the two screws 31 to rotate synchronously, so as to ensure the smooth lifting and lowering of the flocculent filter element 33 and avoid tilting.

[0026] Reference Figure 2 As shown, a drain pipe 305 is connected to the bottom of one side of the water tank 304. The drain pipe 305 is connected to an external drain pipe for discharging the treated wastewater. A valve 306 is connected to a flange at one end of the drain pipe 305.

[0027] Reference Figure 2 as well as Figure 3 As shown, protective shells are fixedly installed on both the inside and outside of the processing box 1 to protect the third bevel gear 38, the fourth bevel gear 301, the first bevel gear 28, and the second bevel gear 29.

[0028] Working principle: During the wastewater treatment process, wastewater enters the filter housing 21 through the inlet pipe 22. At the same time, the dosing pipe 23 adds chemicals into the inlet pipe 22. The drive motor 204 starts, driving the vertical rod 25 to rotate. The rotating filter plate 26 on the vertical rod 25 filters impurities in the wastewater and discharges larger impurities through the discharge pipe 24. At the same time, the first bevel gear 28 and the second bevel gear 29 at the bottom of the vertical rod 25 mesh, driving a stirring paddle 27 to rotate. The double-shaft pulley 201 on the stirring paddle 27 drives two other driven pulleys 202 to rotate through the first belt 203, so that the three stirring paddles 27 simultaneously stir the wastewater in the treatment tank 1, so that the chemicals and wastewater are fully mixed and the flocculent formation is promoted. After the wastewater and flocculent matter have settled for a period of time, the water pump 34 is started to extract the supernatant. The water pump 34 draws the supernatant from the treatment tank 1 into the water tank 304 through the connecting pipe 35, the hose 37, and the suction pipe 36. At the same time, the servo motor 39 is started, and the fourth bevel gear 301 at its output end meshes with the third bevel gear 38, driving a screw 31 to rotate. The two screws 31 rotate synchronously through the linkage pulley 302 and the second belt 303, causing the flocculent filter element 33 to move downward on the screws 31 and the vertical slide bar 32, while the wastewater first passes through... The micro-impurity filter plate 334 intercepts tiny flocculent particles. The filtered water enters the filter hood 335, where it undergoes further screening before being filtered again by the fine filter plate 331. When the flocculent filter element 33 rises and falls, the linkage gear 3306 meshes with the rack 3305, driving the reciprocating screw 338 to rotate. This causes the brush plate 3304 to reciprocate at the bottom of the inner sliding shell 333, cleaning the attached flocculent particles. The treated water can be discharged through the drain pipe 305 by opening the valve 306.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device for fluorescent whitening agents, comprising a treatment tank (1), characterized in that: A water inlet mechanism (2) is installed through one side of the treatment tank (1) for wastewater to enter the interior of the treatment tank (1); the water inlet mechanism (2) includes a filter housing (21) connected to the top of one side of the treatment tank (1), a water inlet pipe (22) connected to one side of the filter housing (21), a dosing pipe (23) for adding chemicals connected to the top of the water inlet pipe (22), and a discharge pipe (24) for discharging impurities connected to the other side of the water inlet pipe (22). The filter mechanism (3) is installed inside the treatment tank (1) to filter flocculent matter in the wastewater; The filtration mechanism (3) includes two screws (31) rotatably installed on one side of the inside of the processing box (1), and a vertical slide rod (32) is fixedly installed on the other side of the inside of the processing box (1). Flocculent filter elements (33) are slidably installed on the surfaces of the screws (31) and the vertical slide rod (32), and the flocculent filter elements (33) are threadedly connected to the two screws (31). A water tank (304) is fixedly installed at the bottom of one side of the treatment box (1), and a water pump (34) is installed at the top of the water tank (304). The outlet end of the water pump (34) passes through the water tank (304) and is connected to it. The inlet end of the water pump (34) is connected to a connecting pipe (35). The end of the connecting pipe (35) away from the water pump (34) passes through the treatment box (1) and extends to the top of the inner cavity of the treatment box (1). A suction pipe (36) for pumping water is fixedly installed on one side of the top of the flocculent filter element (33), and a flexible hose (37) is connected between the suction pipe (36) and the connecting pipe (35). A third bevel gear (38) is fixedly installed on the bottom of the surface of the screw (31), and a servo motor (39) is fixedly installed on the bottom of one side of the processing box (1). The output end of the servo motor (39) passes through the processing box (1) and extends into the interior of the processing box (1). A fourth bevel gear (301) is fixedly installed on the output end of the servo motor (39). The fourth bevel gear (301) and the third bevel gear (38) are meshed. The flocculent filter element (33) includes a fine filter plate (331) threaded to the surface of two screws (31). An outer mounting frame (332) is fixedly installed at the bottom of the fine filter plate (331). An inner sliding shell (333) is slidably installed inside the outer mounting frame (332). The bottom of the inner sliding shell (333) is provided with several through holes, and micro-impurity filter plates (334) are fixedly installed inside the several through holes. Several filter covers (335) are fixedly installed inside the inner sliding shell (333) and at the top of the through hole. The filter covers (335) are fixedly installed on the top of the micro-impurity filter plate (334). A filter screen for water inlet is provided on the top surface of the filter cover (335). A return spring (336) is fixedly installed on the top of the inner cavity of the filter cover (335). A baffle (337) is fixedly installed on the bottom end of the return spring (336). The baffle (337) slides inside the filter cover (335).

2. The wastewater treatment device for fluorescent whitening agents according to claim 1, characterized in that: A reciprocating screw (338) is rotatably mounted on one side of the bottom of the inner sliding shell (333), and a transverse slide rod (339) is fixedly mounted on the other side of the bottom of the inner sliding shell (333). A mounting housing (3301) is mounted on the surface of both the reciprocating screw (338) and the transverse slide rod (339). A plurality of clamping springs (3302) are fixedly installed at the bottom of the inner cavity of the mounting housing (3301), and a telescopic frame (3303) is fixedly installed at the top of each of the clamping springs (3302). The top of the telescopic frame (3303) passes through the mounting housing (3301) and is slidably connected to it. A brush plate (3304) is fixedly installed at the top of the telescopic frame (3303), and the top of the brush plate (3304) is in contact with the bottom of the inner sliding shell (333).

3. The wastewater treatment device for fluorescent whitening agents according to claim 2, characterized in that: A rack (3305) is embedded on one side of one of the vertical slide bars (32), and a linkage gear (3306) is fixedly installed at one end of the reciprocating screw (338). The linkage gear (3306) and the rack (3305) are meshed together to clean the flocculent material attached to the bottom of the flocculent material filter element (33) when it is raised and lowered.

4. The wastewater treatment device for fluorescent whitening agents according to claim 1, characterized in that: The outer wall of the inner sliding shell (333) is provided with a plurality of limiting slide grooves (3307), and the inner wall of the outer mounting frame (332) is fixedly installed with the same number of limiting slide blocks as the limiting slide grooves (3307). The inner sliding shell (333) is slidably installed inside the outer mounting frame (332) through the limiting slide grooves (3307).

5. The wastewater treatment device for fluorescent whitening agents according to claim 1, characterized in that: A drive motor (204) is fixedly installed on the top of the filter housing (21), and the output end of the drive motor (204) passes through the filter housing (21) and extends into the interior of the filter housing (21). A vertical rod (25) is fixedly installed on the output end of the drive motor (204), and the bottom end of the vertical rod (25) passes through the filter housing (21) and extends to the bottom of the filter housing (21). The vertical rod (25) has four rotating filter plates (26) fixedly installed on the surface inside the filter housing (21), and a filter impurity plate is fixedly installed at the connection between the filter housing (21) and the treatment box (1) for filtering impurities in the wastewater.

6. The wastewater treatment device for fluorescent whitening agents according to claim 5, characterized in that: Three stirring paddles (27) for stirring are rotatably installed at the bottom of the inner cavity of the processing box (1), and one end of each of the three stirring paddles (27) passes through the processing box (1) and extends to the outside of the processing box (1). A first bevel gear (28) is fixedly installed at the bottom of the surface of the vertical rod (25), and a second bevel gear (29) is fixedly installed at one end of the stirring paddle (27) located outside the processing box (1). The first bevel gear (28) and the second bevel gear (29) are meshed together. One of the stirring paddles (27) is fixedly mounted with a dual-shaft pulley (201) on the surface outside the processing tank (1), while the other two stirring paddles (27) are each mounted with a driven pulley (202) on the surface outside the processing tank (1), and a first belt (203) is wound around the surface of each of the two driven pulleys (202). The dual-shaft pulley (201) and the driven pulley (202) are connected by the first belt (203).

7. The wastewater treatment device for fluorescent whitening agents according to claim 1, characterized in that: Both screws (31) are fixedly mounted with a linkage pulley (302) at the bottom of their surfaces. A second belt (303) is wound around the surface of both linkage pulleys (302), and the two linkage pulleys (302) are connected by the second belt (303) for driving the two screws (31) to move synchronously.

8. The wastewater treatment device for fluorescent whitening agents according to claim 1, characterized in that: The bottom of one side of the water tank (304) is connected to a drain pipe (305), which is connected to an external drain pipe for discharging the treated wastewater; a valve (306) is connected to a flange at one end of the drain pipe (305).

9. The wastewater treatment device for fluorescent whitening agents according to claim 1, characterized in that: The processing box (1) has a protective shell fixedly installed on one side inside and one side outside for protecting the third bevel gear (38), the fourth bevel gear (301), the first bevel gear (28) and the second bevel gear (29).

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