A wastewater treatment system and method for detergent production

Abstract

This invention discloses a wastewater treatment system and method for detergent production in the field of wastewater treatment technology. The system includes a base, a first water tank located at the center of the base, and second water tanks located on either side of the first water tank. Both the first and second water tanks are fixedly connected to the base. The second water tanks are used to store wastewater, and the first water tanks are used to store filtered wastewater. A filter bucket contains two filtration mechanisms that alternately filter the wastewater in the filter bucket and discharge the filtered wastewater into the first water tank. Simultaneously, the filter residue is automatically cleaned after each filtration. This device, by having two filtration mechanisms work alternately, can clean the filter residue on the other filtration mechanism while one mechanism is filtering wastewater, effectively ensuring the efficiency and effectiveness of wastewater filtration.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewage treatment, in particular to a sewage treatment system and method for cleaner production. BACKGROUND

[0002] A large amount of wastewater is generated during the production of cleaners, and the wastewater contains oil, solid particles and other pollutants.

[0003] In the treatment of these wastewaters, a variety of processes are often used, and first of all, a filtration process is generally used to filter solid particles in the wastewater. Since the wastewater contains oil, the oil has a high viscosity, so during filtration, the wastewater will stick the solid particles to the filter screen, which is prone to clogging the filter screen and slowing down the filtration process. The filter screen is difficult to clean after clogging, which seriously reduces the efficiency of wastewater filtration. SUMMARY

[0004] The purpose of the present application is to provide a sewage treatment system and method for cleaner production to solve the problems raised in the background art.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a sewage treatment system and method for cleaner production, comprising a base, a first water tank is arranged at the middle position of the base, and a second water tank is arranged at the left and right sides of the first water tank, the first water tank and the second water tank are fixedly connected with the base; the second water tank is used for storing sewage, and the first water tank is used for storing filtered sewage; a filter barrel is arranged above the first water tank, first support frames are symmetrically arranged at the left and right sides of the filter barrel, and the filter barrel is rotatably connected with the first support frames; the first support frames are fixedly connected with the base, a first motor is fixedly connected to the right first support frame, and the output shaft of the first motor is fixedly connected with the filter barrel;

[0006] Two filter mechanisms are arranged in the filter barrel, the two filter mechanisms are used for alternately filtering the sewage in the filter barrel, and the sewage is discharged into the first water tank after being filtered, and the filter residue is automatically cleaned after the filter mechanism is filtered;

[0007] A water pumping mechanism is arranged in the filter barrel, and the water pumping mechanism is used for pumping sewage into the filter barrel to drive one of the filter mechanisms to operate;

[0008] A discharging mechanism is arranged on the base, and the discharging mechanism is used for cleaning the filter residue remaining in the filter barrel after the filter residue is cleaned by the filter mechanism.

[0009] Preferably, the two filtering mechanisms each include two filtering plates and two piston plates, the two filtering plates are symmetrically arranged at upper and lower ends of the filtering barrel and are fixedly connected with the filtering barrel; and the two piston plates are located in the filtering barrel and are sealingly attached to the inner wall of the filtering barrel.

[0010] Preferably, the water pumping mechanism includes a first threaded cylinder, the first threaded cylinder is located at a middle position in the filtering barrel and is rotationally connected with the filtering barrel; the first threaded cylinder is internally provided with a first threaded rod, the first threaded rod is threadedly connected with the first threaded cylinder and has self-locking property; the first threaded rod is fixedly connected with the two piston plates at upper and lower ends thereof; the filtering barrel is fixedly connected with two water pumping pipes at positions close to the two filtering plates, the water pumping pipes are internally provided with water pumps, the water pumps are fixedly connected with the water pumping pipes and can only discharge water in one direction; bottom ends of the two water pumping pipes on the lower side are respectively located in the second water tanks on the left and right sides; the filtering barrel is provided with a rotating mechanism, the rotating mechanism is used to drive the first threaded cylinder to rotate; and the filtering barrel is provided with a limiting mechanism, the limiting mechanism is used to prevent the first threaded rod from rotating relative to the filtering barrel.

[0011] Preferably, the rotating mechanism includes a second motor, the second motor is located at a position in front of the filtering barrel and is fixedly connected with the filtering barrel, an upper end of an output shaft of the second motor is fixedly connected with a belt pulley, the belt pulley is provided with a belt, and the belt is in transmission connection with the belt pulley and the first threaded cylinder.

[0012] Preferably, the limiting mechanism includes two limiting plates, the two limiting plates are symmetrically arranged at upper and lower sides of the first threaded cylinder and are rotationally connected with the filtering barrel; the first threaded rod has vertical grooves on a surface thereof and the two limiting plates are in sliding fit with the vertical grooves on the surface of the first threaded rod; limiting blocks are fixedly connected with the limiting plates at symmetric positions on the left and right sides thereof, and limiting frames are slidingly connected with the filtering barrel at symmetric positions on the left and right sides thereof, the limiting frames are respectively in clamping fit with the limiting blocks on the same side of the two limiting plates; a first spring is arranged between the limiting frame and the filtering barrel, one end of the first spring is fixedly connected with the filtering barrel and the other end is fixedly connected with the limiting frame.

[0013] Preferably, the discharging mechanism comprises a second support frame located at a position behind the filter barrel and fixedly connected with the base; a cylinder fixedly connected with the second support frame; a connecting plate fixedly connected with the front end of the cylinder; a scraper rotatably connected with the connecting plate at a position above the connecting plate, the scraper having a three-quarter circular ring shape at the front end; a discharging port formed at a position in front of the bottom of the filter barrel and at a position behind the top of the filter barrel; a sealing plate slidably connected with the filter barrel at a position outside the discharging port; a counterweight provided on the sealing plate; the scraper and the discharging port in clearance fit; a second threaded rod rotatably connected with the rear end of the scraper; a second threaded cylinder provided behind the second threaded rod and rotatably connected with the second support frame; the second threaded rod having no self-locking property and being in threaded fit with the second threaded cylinder; the scraper and the connecting plate and the second threaded cylinder and the second support frame being connected through one-way bearings with opposite rotatable directions; a disengaging mechanism provided in the filter barrel and configured to drive the limiting frame to disengage from the limiting blocks on the top and bottom sides when the first threaded rod moves to the uppermost position; and a reset mechanism provided on the base and configured to drive the limiting frame to reset and engage with the limiting blocks on the top and bottom sides again after the scraper completes the filter residue cleaning.

[0014] Preferably, the disengaging mechanism comprises two lifting rings symmetrically arranged at positions above and below the first threaded cylinder; four jacks fixedly connected with the lifting ring at a position close to the limiting plate on one side of the lifting ring, the jacks penetrating through the limiting plate and being slidably connected with the limiting plate; a second spring sleeved with the jack, one end of the second spring fixedly connected with the jack and the other end fixedly connected with the limiting plate; a rotating ring rotatably connected with the lifting ring at a position away from the jacks, two fixed rods symmetrically fixedly connected with the rotating ring at positions on the left and right sides of the rotating ring, the fixed rods penetrating through the filter barrel and being in clearance fit with the filter barrel; four first connecting rods rotatably connected with the limiting frame, the upper two first connecting rods and the lower two first connecting rods being inclined upward and downward, respectively; a sliding block rotatably connected with the first connecting rod at a position close to the filter barrel, the sliding block slidably connected with the filter barrel; a first clamping block provided at a position above the sliding block on the top side and at a position below the sliding block on the bottom side, the first clamping block being in abutment with the sliding block and slidably connected with the four fixed rods corresponding to the limiting frame; a third spring sleeved with the first clamping block, one end of the third spring fixedly connected with the fixed rod and the other end fixedly connected with the first clamping block; and a first push rod fixedly connected with the first clamping block at a position away from the filter barrel.

[0015] Preferably, the reset mechanism includes two second push rods, which are symmetrically distributed on the left and right sides of the filter barrel. The second push rods are connected to the sliding frame via telescopic rods, which are elastic. The second push rods are at the same height as the first push rods at the bottom. The second push rod on the left is located to the left of the two first push rods at the bottom left, and the second push rod on the right is located to the right of the two first push rods at the bottom right. A sliding frame is provided at the rear of the filter barrel. The sliding frame is slidably connected to the first support frames on the left and right sides, and second connecting rods are symmetrically rotatably connected to the left and right sides of the sliding frame. The second connecting rods are tilted backward, and their rear ends are rotatably connected to the second push rods. A second locking block is slidably connected to the bottom of the connecting plate. The bottom part of the second locking block is at the same height as the rear part of the sliding frame. Third push rods are symmetrically fixedly connected to the left and right sides of the second locking block, and a fourth push rod is provided at the rear of the second locking block. The fourth push rod is fixedly connected to the second support frame and is located directly behind the two third push rods.

[0016] Preferably, a wastewater treatment method for detergent production includes the following specific steps:

[0017] Step 1: Store the wastewater to be filtered into two secondary water tanks, and then start the pumping mechanism to draw the wastewater from the secondary water tanks into the filter bucket;

[0018] Step 2: Start the filtration mechanism. The filtration mechanism will filter the wastewater drawn into the filter tank into the first water tank.

[0019] Step 3: After the filtration mechanism completes filtration, the first motor is started to drive the filter barrel to rotate half a circle, and the filtration mechanism automatically cleans the filter residue after filtration is completed.

[0020] Step 4: The filter residue removed by the filtration mechanism can be discharged from the filter bucket through the discharge mechanism.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. This invention uses a water mechanism to draw wastewater from two second water tanks into a filter barrel. The wastewater in the filter barrel is filtered by one of the filtration mechanisms, removing filter residue and discharging the filtered wastewater directly into the first water tank. After the filter barrel completes one filtration cycle, a first motor is activated to rotate the filter barrel half a turn. At this time, the extraction mechanism is activated to draw wastewater from the two second water tanks back into the filter barrel. Another filtration mechanism in the filter barrel then begins filtering the wastewater. While this filtration mechanism is filtering, the previously completed filtration mechanism automatically cleans the filter residue from its surface. The cleaned filter residue is automatically discharged from the filter barrel through a discharge mechanism. This device, by having two filtration mechanisms work alternately, can clean the filter residue on the other filtration mechanism while one is filtering wastewater, effectively ensuring the efficiency and effectiveness of wastewater filtration.

[0023] This invention uses a piston plate that moves away from the filter plate to draw outside air into the filter barrel. The air passes through the back of the filter plate, effectively knocking off grease and solid particles stuck to the filter plate into the filter barrel, thus cleaning the filter plate. At the same time, because the filter residue falls into the filter barrel, it effectively prevents the filter residue from flying around and polluting the environment. Attached Figure Description

[0024] Figure 1 This is a flowchart of the method of the present invention;

[0025] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the rear view structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the disassembled structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the filter barrel in this invention;

[0029] Figure 6 for Figure 5 A magnified structural diagram of A in the middle;

[0030] Figure 7 This is a cross-sectional view of the filter bucket in this invention;

[0031] Figure 8 This is a schematic diagram of the limiting mechanism in this invention;

[0032] Figure 9 This is a schematic diagram of the material discharge mechanism in this invention;

[0033] Figure 10 This is a schematic diagram of the base structure in this invention.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Base; 2. First water tank; 3. Second water tank; 4. Filter barrel; 5. First support frame; 6. First motor; 7. Filter plate; 8. Piston plate; 9. First threaded cylinder; 10. First threaded rod; 11. Pump pipe; 12. Water pump; 13. Second motor; 14. Pulley; 15. Belt; 16. Limiting plate; 17. Limiting block; 18. Limiting frame; 19. First spring; 20. Second support frame; 21. Cylinder; 22. Connecting plate; 23. 24. Scraper; 25. Discharge port; 26. Sealing plate; 27. Second threaded rod; 28. Second threaded cylinder; 29. ​​Lifting ring; 30. Top rod; 31. Second spring; 32. Rotating ring; 33. Fixed rod; 34. First connecting rod; 35. Sliding block; 36. Third spring; 37. First push rod; 38. Second push rod; 39. Sliding frame; 40. Second connecting rod; 41. Second lock block; 42. Third push rod; 43. Fourth push rod. Detailed Implementation

[0036] Please see Figures 1-10 This invention provides a technical solution: a wastewater treatment system and method for detergent production, comprising a base 1, a first water tank 2 located at the center of the base 1, and second water tanks 3 located on the left and right sides of the first water tank 2, both the first water tank 2 and the second water tank 3 being fixedly connected to the base 1; the second water tank 3 is used to store wastewater and the first water tank 2 is used to store filtered wastewater; a filter bucket 4 is located above the first water tank 2, and first support frames 5 are symmetrically located on the left and right sides of the filter bucket 4, with the filter bucket 4 being rotatably connected to the first support frames 5; the first support frames 5 are fixedly connected to the base 1, and a first motor 6 is fixedly connected to the right first support frame 5, with the output shaft of the first motor 6 being fixedly connected to the filter bucket 4;

[0037] The filter tank 4 is equipped with two filtration mechanisms. The two filtration mechanisms are used to alternately filter the sewage in the filter tank 4 and discharge the sewage into the first water tank 2 after filtration. At the same time, the filter residue is automatically cleaned after the filtration mechanism has completed filtration.

[0038] The filter bucket 4 is equipped with a water pumping mechanism, which is used to pump sewage into the filter bucket 4 to activate one of the filter mechanisms.

[0039] The base 1 is equipped with a discharge mechanism, which is used to remove the filter residue that has been cleaned out and remains inside the filter barrel 4 after the filter mechanism has cleaned the filter residue.

[0040] During operation, wastewater is generated during the production of cleaning agents. This wastewater is stored in two secondary water tanks 3. A pumping mechanism is then activated to draw the wastewater from the two secondary water tanks 3 into a filter barrel 4. In the filter barrel 4, one of the filtration mechanisms filters out the filter residue, and the filtered wastewater is discharged directly into the primary water tank 2. After the filter barrel 4 completes one filtration cycle, the primary motor 6 rotates the filter barrel 4 half a turn. At this time, the pumping mechanism is activated again to draw wastewater from the two secondary water tanks 3 into the filter barrel 4. Another filtration mechanism in the filter barrel 4 then begins filtering the wastewater. While this filtration mechanism is filtering, the previously completed filtration mechanism automatically cleans the filter residue from its surface. The cleaned filter residue is automatically discharged from the filter barrel 4 through a discharge mechanism. This device, by having two filtration mechanisms work alternately, cleans the filter residue from the other filtration mechanism while one is filtering wastewater, effectively ensuring the efficiency and effectiveness of wastewater filtration.

[0041] like Figure 5 , Figure 7 As shown, as a further embodiment of the present invention, the two filtration mechanisms each include two filter plates 7 and two piston plates 8. The two filter plates 7 are symmetrically distributed at the upper and lower ends of the filter barrel 4 and are fixedly connected to the filter barrel 4. The two piston plates 8 are located inside the filter barrel 4 and are sealed and fitted to the inner wall of the filter barrel 4.

[0042] During operation, when sewage is drawn into the filter tank 4, the two piston plates 8 divide the interior of the filter tank 4 into three spaces. The uppermost and lowermost spaces are for containing sewage. When the sewage enters the filter tank 4, it will be in the lowermost space. This part of the sewage will be discharged through the filter plate 7 below, and the filter residue in the sewage will be filtered out by the filter plate 7 below.

[0043] like Figures 5-8 As shown, as a further embodiment of the present invention, the pumping mechanism includes a first threaded cylinder 9, which is located in the middle of the filter barrel 4 and is rotatably connected to the filter barrel 4; a first threaded rod 10 is provided inside the first threaded cylinder 9, which is threadedly connected to the first threaded cylinder 9 and has self-locking properties; the upper and lower ends of the first threaded rod 10 are respectively fixedly connected to two piston plates 8; two pumping pipes 11 are fixedly connected to the filter barrel 4 near the two filter plates 7, and a water pump 12 is provided inside the pumping pipes 11, which is fixedly connected to the pumping pipes 11 and can only drain water in one direction; the bottom ends of the two lower pumping pipes 11 are respectively located in the second water tanks 3 on the left and right sides; a rotating mechanism is provided on the filter barrel 4 to drive the first threaded cylinder 9 to rotate; a limiting mechanism is provided on the filter barrel 4 to prevent the first threaded rod 10 from rotating relative to the filter barrel 4.

[0044] The rotating mechanism includes a second motor 13, which is located in front of the filter barrel 4 and is fixedly connected to the filter barrel 4. A pulley 14 is fixedly connected to the upper end of the output shaft of the second motor 13. A belt 15 is provided on the pulley 14, and the belt 15 is simultaneously connected to the pulley 14 and the first threaded cylinder 9.

[0045] The limiting mechanism includes two limiting plates 16, which are symmetrically distributed on the upper and lower sides of the first threaded cylinder 9 and are rotatably connected to the filter barrel 4. The surface of the first threaded rod 10 has a vertical groove, and the two limiting plates 16 are slidably engaged with the vertical groove on the surface of the first threaded rod 10. Limiting blocks 17 are symmetrically fixedly connected to the left and right sides of the limiting plates 16, and limiting frames 18 are symmetrically slidably connected to the left and right sides of the filter barrel 4. The limiting frames 18 are respectively engaged with the limiting blocks 17 on the same side of the upper and lower limiting plates 16. A first spring 19 is provided between the limiting frame 18 and the filter barrel 4. One end of the first spring 19 is fixedly connected to the filter barrel 4, and the other end is fixedly connected to the limiting frame 18.

[0046] During operation, when wastewater needs to be drawn into the filter tank 4, the two water pumps 12 on the lower part are started. The two pumps 12 draw wastewater from the two second water tanks 3 into the lower part of the filter tank 4 through two suction pipes 11. Before drawing wastewater, the first threaded rod 10 and the upper and lower piston plates 8 are in their uppermost positions. After a suitable amount of wastewater has been drawn into the filter tank 4, the water pumps 12 are stopped, and then the second motor 13 is started to drive the pulley 14 to rotate. When the pulley 14 rotates, it drives the first threaded cylinder 9 to rotate via the belt 15. When the first threaded cylinder 9 rotates, it drives the first threaded rod 10 to move downwards. As the first threaded rod 10 moves downwards... The piston plates 8 on both sides will move downwards simultaneously. When the lower piston plate 8 (hereinafter referred to as piston plate 8) moves downwards, it can press the sewage in the lower part of the filter bucket 4. The sewage in the filter bucket 4 will accelerate through the lower filter plate 7 (hereinafter referred to as filter plate 7), which can accelerate the filtration effect. When the first threaded rod 10 drives both piston plates 8 to the lowest position, the sewage in the filter bucket 4 is completely filtered. At this time, the first motor 6 is started. The first motor 6 drives the filter bucket 4 to start to rotate. During the rotation of the filter bucket 4, the second motor 13 drives the first threaded cylinder 9 to rotate in the opposite direction, and the piston plate 8 begins to move away from the filter plate 7.

[0047] Because the wastewater contains grease, the grease mixes tightly with the filter residue and adheres to the filter plate 7. When the piston plate 8 moves away from the filter plate 7, it draws in outside air from the filter plate 7 into the filter barrel 4. As the air passes through the filter plate 7, it automatically flushes the filter residue adhering to its surface into the filter barrel 4, thus separating and cleaning the filter residue on the filter plate 7. This process is completed when the filter barrel 4 rotates 90 degrees, at which point the piston plate 8 is at its furthest distance from the filter plate 7. When the filter barrel 4 continues to rotate, the second motor 13 drives the first threaded cylinder 9 to rotate in the opposite direction again, and the piston plate 8 begins to move closer to the filter plate 7. As the piston plate 8 moves, it pushes and accumulates the filter residue scattered on the inner wall of the filter barrel 4. When the filter plate 7 continues to rotate 90 degrees (the filter plate 7 is at its top position), the piston plate 8 is at its closest position to the filter plate 7, at which point the first motor 6 stops.

[0048] like Figures 5-10 As shown, as a further embodiment of the present invention, the discharge mechanism includes a second support frame 20, which is located behind the filter barrel 4 and is fixedly connected to the base 1; a cylinder 21 is fixedly connected to the second support frame 20, a connecting plate 22 is fixedly connected to the front end of the cylinder 21, and a scraper 23 is rotatably connected above the connecting plate 22, the front end of the scraper 23 being a three-quarters annular shape; discharge ports 24 are provided at the bottom front side and the top rear side of the filter barrel 4, and a sealing plate 25 is slidably connected to the filter barrel 4 at the outer side of the discharge ports 24, with a counterweight provided on the sealing plate 25; the scraper 23 is clearance-fitted with the discharge ports 24; a second threaded rod 26 is rotatably connected to the rear end of the scraper 23. A second threaded cylinder 27 is provided behind the second threaded rod 26, and the second threaded cylinder 27 is rotatably connected to the second support frame 20; the second threaded rod 26 is not self-locking and the second threaded rod 26 and the second threaded cylinder 27 are threadedly engaged; the scraper 23 and the connecting plate 22, as well as the second threaded cylinder 27 and the second support frame 20, are all connected by one-way bearings and the two one-way bearings can rotate in opposite directions; a release mechanism is provided inside the filter barrel 4, which is used to drive the limiting frame 18 to disengage from the upper and lower limit blocks 17 when the first threaded rod 10 moves to the uppermost position; a reset mechanism is provided on the base 1, which is used to drive the limiting frame 18 to reset and re-engage with the upper and lower limit blocks 17 after the scraper 23 has finished cleaning the filter residue;

[0049] The disengagement mechanism includes two lifting rings 28, symmetrically distributed on the upper and lower sides of the first threaded cylinder 9. Four push rods 29 are fixedly connected to the lifting rings 28 near the limiting plate 16, each pushing rod 29 penetrating the limiting plate 16 and slidably connected to it. A second spring 30 is sleeved on each push rod 29, with one end fixedly connected to the push rod 29 and the other end fixedly connected to the limiting plate 16. A rotating ring 31 is rotatably connected to the lifting rings 28 away from the push rods 29. Two fixing rods 32 are symmetrically fixedly connected to the left and right sides of the rotating ring 31, passing through the filter barrel 4 and fitting with it with a clearance. The limiting frame 18 is rotatably connected... Four first connecting rods 33 are connected, with the upper two first connecting rods 33 and the lower two first connecting rods 33 tilting upwards and downwards respectively; a slider 34 is rotatably connected to the end of the first connecting rod 33 near the filter barrel 4, and the slider 34 is slidably connected to the filter barrel 4; a first locking block 35 is provided above the upper slider 34 and below the lower slider 34, and the first locking block 35 is in contact with the slider 34, and the four first locking blocks 35 are slidably connected to the four fixing rods 32 corresponding to the limiting frame 18; a third spring 36 is sleeved on the first locking block 35, one end of the third spring 36 is fixedly connected to the fixing rod 32 and the other end is fixedly connected to the first locking block 35; a first push rod 37 is fixedly connected to the side of the first locking block 35 away from the filter barrel 4.

[0050] The reset mechanism includes two second push rods 38, which are symmetrically distributed on the left and right sides of the filter barrel 4. The second push rods 38 are connected to the sliding frame 39 via a telescopic rod 44, which is elastic. The second push rods 38 are at the same height as the first push rods 37 at the bottom. The left second push rod 38 is located to the left of the two first push rods 37 at the bottom left, and the right second push rod 38 is located to the right of the two first push rods 37 at the bottom right. A sliding frame 39 is provided at the rear of the filter barrel 4. The sliding frame 39 is slidably connected to the first support frames 5 on the left and right sides. The frame 39 is symmetrically and rotatably connected to the left and right sides with second connecting rods 40. The second connecting rods 40 are tilted backward and their rear ends are rotatably connected to the second push rod 38. The bottom of the connecting plate 22 is slidably connected to the second locking block 41. The bottom part of the second locking block 41 is at the same height as the rear part of the sliding frame 39. The second locking block 41 is symmetrically and fixedly connected to the left and right sides with third push rods 42. A fourth push rod 43 is provided behind the second locking block 41. The fourth push rod 43 is fixedly connected to the second support frame 20 and is located directly behind the two third push rods 42.

[0051] During operation, after the first motor 6 drives the filter barrel 4 to rotate half a turn, the second motor 13 drives the first threaded cylinder 9 to rotate, which in turn drives the first threaded rod 10 and the two piston plates 8 to move upward. At this time, the lower piston plate 8 begins to engage with the four lower push rods 29. As the first threaded cylinder 9 continues to rotate, the lower piston plate 8 begins to push against the four push rods 29 and move upward. The four push rods 29 drive the lower lifting ring 28 and rotating ring 31 to move upward. The rotating ring 31 then drives the four fixed rods 32 connected to it to move upward. The fixed rods 32 are connected to the first locking block 3. 5. Push the two sliders 34 on the lower left and the two sliders 34 on the lower right to slide upwards simultaneously. The two sliders 34 on the left and right sides push the limiting frames 18 on the left and right sides to move to the left and right respectively through the first connecting rod 33. When the limiting frames 18 on the left and right sides are disengaged from the limiting blocks 17 on the upper and lower limiting plates 16 respectively, the limiting plates 16 can rotate freely and no longer restrict the rotation of the first threaded rod 10. When the first threaded cylinder 9 continues to rotate, it will drive the first threaded rod 10 to rotate with the first threaded cylinder 9. The first threaded rod 10 will drive the piston plates 8 on the upper and lower sides to rotate synchronously.

[0052] When the filter barrel 4 rotates half a turn, the sealing plate 25, which was originally in a closed state, will slide downward under the action of the counterweight and expose the discharge port 24. At this time, the starting cylinder 21 drives the connecting plate 22 to move forward. The connecting plate 22 drives the scraper 23 and the second locking block 41 to move forward. When the second locking block 41 contacts the sliding frame 39, it will be squeezed upward by the sliding frame 39, so the second locking block 41 can pass over the sliding frame 39 normally. When the cylinder 21 drives the connecting plate 22 to the foremost position, the scraper 23 just enters the interior of the filter barrel 4 through the discharge port 24. The bottom end of the scraper 23 is just in contact with the surface of the piston plate 8 on the upper side, and the scraper 23 is in the center of the piston plate 8. As the piston plate 8 continues to rotate, multiple After completing a full rotation, the second motor 13 stops, and the filter residue on the piston plate 8 will be concentrated and adhered to the surface of the scraper 23. When the starting cylinder 21 drives the scraper 23 to move backward, the scraper 23 will scrape out the filter residue. Since the first threaded rod 10 will drive the piston plate 8 to move upward again after the filter barrel 4 rotates half a turn, the rotation direction of the piston plate 8 will be opposite to that of the current piston plate 8. Therefore, the rotation direction of the piston plate 8 at the top will be opposite to that of the current piston plate 8. After the cylinder 21 is reset, the second threaded rod 26 behind the scraper 23 will be inserted into the second threaded cylinder 27 and drive the scraper 23 to rotate half a turn. When the cylinder 21 drives the scraper 23 to extend into the filter barrel 4 again, the scraper 23 can clean the filter residue on the piston plate 8.

[0053] When the connecting plate 22 moves the second locking block 41 backward to the position where it contacts the sliding frame 39, the second locking block 41 will move the sliding frame 39 backward. The sliding frame 39 will move the second push rods 38 on the left and right sides to the right and left respectively through the second connecting rods 40 on the left and right sides. When the second push rod 38 moves, it will come into contact with the first push rod 37 on the lower side and push the first push rod 37 on the lower side to the outward position. After the first push rod 37 is pushed, it will move the first locking block 35 connected to it. When the first locking block 35 moves, it will disengage from the slider 34. When the first locking block 35 disengages from the slider 34, the limiting frames 18 on the left and right sides will engage with the limiting blocks 17 on the upper and lower sides again under the action of the first spring 19. At this time, the first threaded cylinder 9 can be driven to rotate in the opposite direction by the second motor 13.

[0054] When the limit frame 18 is reset, the sliders 34 on the upper and lower sides will automatically move to the uppermost and lowermost positions. When the upper slider 34 is in contact with the upper first locking block 35, it will push it away and pass over the upper first locking block 35. When the cylinder 21 drives the connecting plate 22 to be fully reset, the third push rod 42 on the second locking block 41 will be pushed upward by the fourth push rod 43. The third push rod 42 will drive the second locking block 41 to move upward and disengage from the sliding frame 39, and the sliding frame 39 will automatically reset.

[0055] As a further aspect of the present invention, a wastewater treatment method for detergent production includes the following specific steps:

[0056] Step 1: Store the wastewater to be filtered into two second water tanks 3, and then start the pumping mechanism to draw the wastewater from the second water tanks 3 into the filter bucket 4;

[0057] Step 2: Start the filtration mechanism. The filtration mechanism can filter the wastewater drawn into the filter tank 4 into the first water tank 2.

[0058] Step 3: After the filtration mechanism completes filtration, the first motor 6 is started to drive the filter barrel 4 to rotate half a circle, and the filtration mechanism automatically cleans the filter residue after filtration is completed.

[0059] Step 4: The filter residue removed by the filtration mechanism can be discharged from the filter bucket 4 through the discharge mechanism.

Claims

1. A sewage treatment system for cleaning agent production, comprising a base (1), characterized in that: The base (1) is provided with a first water tank (2) in the middle position and a second water tank (3) on the left and right sides of the first water tank (2), the first water tank (2) and the second water tank (3) are fixedly connected with the base (1); the second water tank (3) is used for storing sewage and the first water tank (2) is used for storing filtered sewage; the first water tank (2) is provided with a filter barrel (4) above, the filter barrel (4) is provided with a first support frame (5) on the left and right sides in a symmetrical manner and is rotatably connected with the first support frame (5); the first support frame (5) is fixedly connected with the base (1), a first motor (6) is fixedly connected with the right first support frame (5), and the output shaft of the first motor (6) is fixedly connected with the filter barrel (4); Two filter mechanisms are arranged in the filter barrel (4), the two filter mechanisms are used for alternately filtering the sewage in the filter barrel (4) and discharging the filtered sewage into the first water tank (2), and the filter mechanisms are used for automatically cleaning the filter residue after filtering; A water pumping mechanism is arranged in the filter barrel (4), and the water pumping mechanism is used for pumping sewage into the filter barrel (4) to drive one of the filter mechanisms to operate; A discharging mechanism is arranged on the base (1), and the discharging mechanism is used for cleaning the filter residue remaining in the filter barrel (4) after the filter mechanisms clean the filter residue; The two filter mechanisms each include two filter plates (7) and two piston plates (8), the two filter plates (7) are symmetrically arranged at the upper and lower ends of the filter barrel (4) and are fixedly connected with the filter barrel (4); the two piston plates (8) are arranged in the filter barrel (4) and are sealingly attached to the inner wall of the filter barrel (4); The water pumping mechanism includes a first threaded cylinder (9), the first threaded cylinder (9) is arranged in the middle position in the filter barrel (4) and is rotatably connected with the filter barrel (4); the first threaded cylinder (9) is provided with a first threaded rod (10) inside, the first threaded rod (10) is threadedly connected with the first threaded cylinder (9) and has self-locking property; the first threaded rod (10) is fixedly connected with the two piston plates (8) at the upper and lower ends; two water pumping pipes (11) are fixedly connected with the filter barrel (4) at positions close to the two filter plates (7), a water pump (12) is arranged in the water pumping pipe (11), the water pump (12) is fixedly connected with the water pumping pipe (11) and can only discharge water in one direction; the bottom ends of the two water pumping pipes (11) on the lower side are respectively arranged in the second water tanks (3) on the left and right sides; a rotating mechanism is arranged on the filter barrel (4) and is used for driving the first threaded cylinder (9) to rotate; a limiting mechanism is arranged on the filter barrel (4) and is used for preventing the first threaded rod (10) from rotating relative to the filter barrel (4); The rotating mechanism comprises a second motor (13), the second motor (13) is located in front of the filter bucket (4), the second motor (13) is fixedly connected with the filter bucket (4), a belt pulley (14) is fixedly connected to the upper end of the output shaft of the second motor (13), a belt (15) is arranged on the belt pulley (14), and the belt (15) is in driving connection with the belt pulley (14) and the first threaded cylinder (9).

2. The sewage treatment system for cleaning agent production according to claim 1, characterized in that: The limiting mechanism comprises two limiting plates (16), the two limiting plates (16) are symmetrically arranged on the upper and lower sides of the first threaded cylinder (9) and are in rotary connection with the filter bucket (4); the first threaded rod (10) is provided with vertical grooves on the surface, and the two limiting plates (16) are in sliding connection with the vertical grooves on the surface of the first threaded rod (10); limiting blocks (17) are symmetrically fixedly connected to the left and right sides of the limiting plates (16), and limiting frames (18) are symmetrically and slidably connected to the left and right sides of the filter bucket (4), the limiting frames (18) are in clamping connection with the limiting blocks (17) on the same side of the upper and lower limiting plates (16), respectively, a first spring (19) is arranged between the limiting frame (18) and the filter bucket (4), one end of the first spring (19) is fixedly connected with the filter bucket (4), and the other end is fixedly connected with the limiting frame (18).

3. The sewage treatment system for cleaning agent production according to claim 2, characterized in that: The discharging mechanism comprises a second support frame (20) located at a position behind the filter barrel (4) and fixedly connected with the base (1); the second support frame (20) is fixedly connected with a gas cylinder (21), the front end of the gas cylinder (21) is fixedly connected with a connecting plate (22), the upper position of the connecting plate (22) is rotatably connected with a scraper (23), and the front end portion of the scraper (23) is a three-quarter circular ring; the bottom front side position and the upper rear side position of the filter barrel (4) are both provided with a discharging port (24), the filter barrel (4) is slidably connected with a sealing plate (25) at a position outside the discharging port (24), and the sealing plate (25) is provided with a counterweight; the scraper (23) is gap-connected with the discharging port (24); the rear end position of the scraper (23) is rotatably connected with a second threaded rod (26), the rear of the second threaded rod (26) is provided with a second threaded cylinder (27), the second threaded cylinder (27) is rotatably connected with the second support frame (20); the second threaded rod (26) has no self-locking property and is threadedly connected with the second threaded cylinder (27); the scraper (23) and the connecting plate (22) and the second threaded cylinder (27) and the second support frame (20) are all connected through one-way bearings, and the rotatable directions of the two one-way bearings are opposite; the filter barrel (4) is provided with a disengaging mechanism, the disengaging mechanism is used for driving the limiting frame (18) to disengage from the limiting blocks (17) on the upper and lower sides when the first threaded rod (10) moves to the uppermost position; the base (1) is provided with a resetting mechanism, the resetting mechanism is used for driving the limiting frame (18) to reset and engage with the limiting blocks (17) on the upper and lower sides again after the scraper (23) completes the filter residue cleaning.

4. The sewage treatment system for cleaning agent production according to claim 3, characterized in that: The disengaging mechanism comprises two lifting rings (28) which are symmetrically arranged on the upper and lower sides of the first threaded cylinder (9); four jacks (29) are fixedly connected to one side of each of the two lifting rings (28) which faces the corresponding limiting plate (16), the four jacks (29) all penetrate through the limiting plate (16) and are all in sliding connection with the limiting plate (16); a second spring (30) is sleeved on the jack (29), one end of the second spring (30) is fixedly connected with the jack (29) and the other end is fixedly connected with the limiting plate (16); a rotating ring (31) is rotatably connected to the side of the lifting ring (28) which is away from the jack (29), two fixed rods (32) are symmetrically fixedly connected to the left and right sides of the rotating ring (31), the fixed rods (32) penetrate through the filter barrel (4) and are in clearance fit with the filter barrel (4); four first connecting rods (33) are rotatably connected to the limiting frame (18), the upper two first connecting rods (33) and the lower two first connecting rods (33) are respectively inclined upward and downward; a sliding block (34) is rotatably connected to the end of the first connecting rod (33) which is close to the filter barrel (4), the sliding block (34) is in sliding connection with the filter barrel (4); a first clamping block (35) is arranged above the upper sliding block (34) and below the lower sliding block (34), the first clamping block (35) is attached to the sliding block (34) and the four first clamping blocks (35) are respectively in sliding connection with the four fixed rods (32) corresponding to the limiting frame (18); a third spring (36) is sleeved on the first clamping block (35), one end of the third spring (36) is fixedly connected with the fixed rod (32) and the other end is fixedly connected with the first clamping block (35); a first push rod (37) is fixedly connected to the side of the first clamping block (35) which is away from the filter barrel (4).

5. The sewage treatment system for cleaning agent production according to claim 4, characterized in that: The reset mechanism comprises two second push rods (38) symmetrically arranged on the left and right sides of the filter barrel (4), the second push rod (38) is connected with the sliding frame (39) through the telescopic rod (44), and the telescopic rod (44) has elasticity; the second push rod (38) is at the same height as the first push rod (37) on the bottom side, the left second push rod (38) is located on the left side of the two first push rods (37) on the left side, and the right second push rod (38) is located on the right side of the two first push rods (37) on the right side; the sliding frame (39) is arranged at the rear position of the filter barrel (4), the sliding frame (39) is slidably connected with the first support frame (5) on the left and right sides, and the sliding frame (39) is symmetrically connected with the second connecting rod (40) on the left and right sides, the second connecting rod (40) is inclined backward, and the rear end of the second connecting rod (40) is rotatably connected with the second push rod (38); the second clamping block (41) is slidably connected at the bottom position of the connecting plate (22), the bottom side of the second clamping block (41) is at the same height as the rear side of the sliding frame (39); the third push rod (42) is fixedly connected with the second clamping block (41) on the left and right sides, and the fourth push rod (43) is arranged at the rear position of the second clamping block (41); the fourth push rod (43) is fixedly connected with the second support frame (20), and the fourth push rod (43) is located at the rear position of the two third push rods (42).

6. A sewage treatment method for cleaning agent production, which is suitable for the sewage treatment system for cleaning agent production according to any one of claims 1 to 5, characterized in that: The specific steps of the method are as follows: Step one: store the wastewater to be filtered in the two second water tanks (3), and then start the water pumping mechanism to pump the wastewater in the second water tank (3) into the filter barrel (4); Step two: start the filtering mechanism, which can filter the wastewater in the filter barrel (4) into the first water tank (2); Step three: after the filtering mechanism completes the filtering, start the first motor (6) to drive the filter barrel (4) to rotate half a circle, and the filtering mechanism automatically cleans the filter residue after filtering; Step four: the filter residue cleaned by the filtering mechanism can be discharged from the filter barrel (4) through the discharge mechanism.

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