Water quality regulation and purification treatment system based on drained water and recycled water

Abstract

The system comprises a primary screening module, a filter pressing module and a linkage assembly, the primary screening module comprises a primary screening drum, a coarse screening plate and a fine screening drum are fixedly connected in the primary screening drum, the coarse screening plate is located at the upper end of the primary screening drum, and the fine screening drum is located at the lower end of the primary screening drum; the fine screen drum is located in the middle of the primary screen drum and can be driven by a driving motor to rotate, a brush disc which moves up and down to clean the outer side of the fine screen drum is arranged outside the fine screen drum, and rotation of the fine screen drum and vertical movement of the brush disc synchronously move through a linkage gear set. Different treatment processes are reasonably planned, the treatment processes are divided into the water body treatment process and the garbage cleaning process, water needing to be treated can continuously pass through different treatment processes through the water body treatment process, and therefore the treatment efficiency is improved; meanwhile, different treatment flows are arranged around the linkage assembly, so that the occupied area of the equipment is reduced, and the space utilization rate is increased.

Description

Technical Field

[0001] The present invention relates to the field of water purification, and specifically to a water quality regulation and purification treatment system based on drained water and reclaimed water. Background Art

[0002] Drained water generally refers to the groundwater pumped out from underground projects such as mines and foundation pits; reclaimed water refers to the reclaimed water that meets certain water quality standards after the treatment of urban sewage. As important unconventional water resources, their effective purification and reuse are of great significance for alleviating water resource shortage and protecting water environment.

[0003] Currently, the process of purifying drained water and reclaimed water to meet different reuse standards usually involves multiple treatment units. Typical treatment processes include: filtering large particles, filtering fine suspended solids, oxidative decomposition, disinfection, etc. However, different treatment processes are relatively independent. The water to be treated often needs to be paused after one process and wait until the treated water reaches a certain content before proceeding to the next step. There is an ineffective residence time during the transfer and waiting of the water flow between different treatment processes, resulting in a long treatment time and low efficiency; at the same time, the equipment between different treatment processes is also independent of each other and is only linearly connected through pipes, resulting in a large floor area of the equipment. Summary of the Invention

[0004] The purpose of the present invention is to provide a water quality regulation and purification treatment system based on drained water and reclaimed water to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A water quality regulation and purification treatment system based on drained water and reclaimed water, including: Primary screening module: The primary screening module includes a primary screening cylinder. Inside the primary screening cylinder, a coarse screening plate and a fine screening cylinder are fixedly connected. The coarse screening plate is located at the upper end of the primary screening cylinder, and the fine screening cylinder is located in the middle of the primary screening cylinder and can be rotated by the drive of a drive motor. A brush plate for cleaning the outside of the fine screening cylinder by moving up and down is arranged outside the fine screening cylinder. The rotation of the fine screening cylinder and the up and down movement of the brush plate are synchronized by a linkage gear set; Pressure filtration module: The pressure filtration module includes a pressure filtration cylinder. A filter plate is slidably connected inside the pressure filtration cylinder. A push rod is fixedly connected to the outside of the filter plate. A secondary extrusion structure is also arranged inside the pressure filtration cylinder; Linkage component: A number of pressure filtration cylinders are arranged at the lower end of the primary screening cylinder. The primary screening cylinder and the pressure filtration cylinders work synchronously through a linkage component. The linkage component includes two ball screws. The movement of the brush plate is driven by the two ball screws. The ball screws are driven by a linkage gear set. After the two ball screws pass through the lower end of the primary screening cylinder, conical push blocks are arranged on them. Each ball screw is rotatably and sealedly connected to the primary screening cylinder, and the connection part is a smooth rod. The conical push block can push the push rod outside the filter plate.

[0006] Preferably, the linkage gear set includes a driving gear and a driven gear meshing therewith. The upper end of the primary screening cylinder is fixedly connected to a driving motor, the output shaft of the driving motor is fixedly connected to the driving gear, the driving gear is fixedly connected to the fine screening cylinder, the driving gear meshes with two driven gears respectively, the driven gears are rotatably connected to the primary screening cylinder through brackets, and the upper end of each driven gear is fixedly connected to an upper end of a ball screw.

[0007] Preferably, the output ends of the two ball screws are fixedly connected to a brush disc. One ends of a plurality of brush head fixing rods are hinged to the lower end of the brush disc, the other ends of the brush head fixing rods are fixedly connected to brush heads, and an adaptive spring is fixedly connected between the upper ends of the brush head fixing rods and the lower surface of the brush disc.

[0008] Preferably, a groove is provided outside the coarse screening plate, a conveying shaft is arranged in the groove, a sewage discharge groove is arranged in the middle of the coarse screening plate, the bottom surface of the sewage discharge groove is an inclined surface, a sewage discharge channel is opened in the primary screening cylinder at the position where the sewage discharge groove inclines downward, a sewage discharge door is arranged at the sewage discharge channel, and a sewage storage tank is fixedly connected to the lower end of the primary screening cylinder at the sewage discharge channel.

[0009] Preferably, a sewage discharge motor is fixedly connected to the outside of the primary screening cylinder, the output shaft of the sewage discharge motor is fixedly connected to a pulley, a sewage discharge driving gear is fixedly connected to the pulley, a sewage discharge driven gear is rotatably connected to the outside of the primary screening cylinder, the sewage discharge driven gear meshes with the sewage discharge driving gear, the sewage discharge driven gear is on the side far from the primary screening cylinder and is fixedly connected to an eccentric column at a position not at the center of the circle, one ends of two rotating rods are rotatably connected to the eccentric column, one ends of sliding rods are rotatably connected to the other ends of each rotating rod, the other ends of the sliding rods are fixedly connected to one end of a push plate through a rod so that the sliding rods always remain horizontal, a groove for the rod to slide is arranged on the primary screening cylinder, the push plate is slidably connected in the primary screening cylinder, and the lower surface of the push plate is in contact connection with the upper surface of the coarse screening plate.

[0010] Preferably, both ends of the conveying shaft extend out of the primary screening cylinder. One end of each conveying shaft close to the sewage discharge motor is fixedly connected to a pulley, a belt is sleeved on the pulley of the sewage discharge driving gear and the pulley on the conveying shaft, and a partition plate is arranged between the pulleys of the sewage discharge driving gear and the two belts to prevent the two belts from interfering. A spiral blade is fixedly connected to the outside of each conveying shaft.

[0011] Preferably, one ends of a plurality of water pipes are fixedly communicated with the lower end of the fine screening cylinder, and the other ends of each water pipe are fixedly communicated with the upper ends of different filter pressing cylinders.

[0012] Preferably, the secondary extrusion structure includes an elastic membrane. An elastic membrane is fixedly connected inside each pressure filtration cylinder. A water injection pipe is fixedly communicated at the position of the pressure filtration cylinder where the elastic membrane is located. A plurality of water injection pipes are communicated with each other and are finally fixedly communicated with a water tank. The middle parts of a plurality of pressure filtration cylinders are fixedly connected to the same collection cylinder, and a drain pipe is fixedly communicated below the collection cylinder.

[0013] Preferably, a sewage discharge door is arranged at the lower end of each pressure filtration cylinder, and the pressure filtration cylinder is fixedly connected to the ground through a support leg.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: By reasonably planning different treatment processes, the treatment process of the present invention is divided into a water body treatment process and a garbage cleaning process. Among them, the water body treatment process can enable the water to be treated to continuously pass through different treatment processes, thereby improving the treatment efficiency; at the same time, different treatment processes are all arranged around the linkage component, reducing the floor area of the equipment and improving the space utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the overall structure of the present invention from another angle; Figure 3 is a sectional view of the present invention; Figure 4 is Figure 3 a partial enlarged view of part A in Figure 5 is a sectional view of the present invention at the position of the brush disc; Figure 6 is Figure 5 a partial enlarged view of part B in Figure 7 is Figure 1 a partial enlarged view of part C in Figure 8 is a sectional view of the present invention at the position of the fine sieve cylinder; Figure 9 is Figure 3 a partial enlarged view of part D in Figure 10 is Figure 8 a partial enlarged view of part E in Figure 11 is a sectional view of the present invention at the position of the conveying shaft; Figure 12 is Figure 11 a partial enlarged view of part F in Figure 13 is Figure 11 a partial enlarged view of part G in Figure 14Cross-sectional view of the present invention at the position of the elastic membrane; Figure 15 is Figure 14 Partial enlarged view at position H in

[0016] In the figure: 101, primary screening cylinder; 102, driving motor; 103, driving gear; 104, driven gear; 105, ball screw; 106, optical rod; 107, conical push block; 201, coarse screening plate; 202, fine screening cylinder; 203, water pipe; 204, brush disc; 205, brush head fixing rod; 206, brush head; 207, adaptive spring; 208, sewage discharge pipe; 301, sewage discharge motor; 302, sewage discharge driving gear; 303, sewage discharge driven gear; 304, pulley; 305, belt; 306, conveying shaft; 307, spiral blade; 308, eccentric column; 309, rotating rod; 310, sliding rod; 311, push plate; 312, sewage discharge groove; 313, sewage storage tank; 401, pressure filtration cylinder; 402, push rod; 403, filter plate; 404, elastic membrane; 405, water injection pipe; 406, water tank; 501, collection cylinder; 502, drain pipe; 503, support leg. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Please refer to Figure 1-15 , to solve the problem that the water to be treated often needs to pause after completing one process and wait for the treated water to reach a certain content before proceeding to the next step. There is an ineffective residence time during the transfer and waiting of the water flow between different treatment processes, resulting in a long time-consuming and low-efficiency treatment process. To achieve the effect that the water treatment process can continuously pass the water to be treated through different treatment processes, thereby improving the treatment efficiency, the present invention provides a technical solution: a water quality regulation and purification treatment system based on dewatered water and reclaimed water, including: Primary screening module: The primary screening module includes a primary screening cylinder 101. A coarse screening plate 201 and a fine screening cylinder 202 are fixedly connected inside the primary screening cylinder 101. The coarse screening plate 201 is located at the upper end of the primary screening cylinder 101, and the fine screening cylinder 202 is located in the middle of the primary screening cylinder 101 and can be rotated by the drive of a driving motor 102. A brush disc 204 for cleaning the outside of the fine screening cylinder 202 by moving up and down is arranged outside the fine screening cylinder 202. The rotation of the fine screening cylinder 202 and the up and down movement of the brush disc 204 are synchronized by a linkage gear set; Filter press module: The filter press module includes a filter press cylinder 401. A filter plate 403 is slidably connected inside the filter press cylinder 401. A push rod 402 is fixedly connected to the outside of the filter plate 403. A secondary extrusion structure is also provided inside the filter press cylinder 401. Linkage component: A number of filter press cylinders 401 are provided at the lower end of the primary screening cylinder 101. The primary screening cylinder 101 and the filter press cylinders 401 work synchronously through a linkage component. The linkage component includes two ball screws 105. The movement of the brush disc 204 is driven by the two ball screws 105. The ball screws 105 are driven by a linkage gear set. After the two ball screws 105 pass through the lower end of the primary screening cylinder 101, conical push blocks 107 are provided thereon. The conical push blocks 107 are driven by the two ball screws 105 to move. Each ball screw 105 is rotatably and sealingly connected to the primary screening cylinder 101, and the connection part is a smooth rod 106. The conical push block 107 can push the push rod 402 outside the filter plate 403. A sealing device is provided between the smooth rod 106 and the primary screening cylinder 101. Limit discs are fixedly connected to both ends of the ball screw 105 at the lower end of the smooth rod 106, so as to prevent the conical push block 107 from slipping off. In this application, the drive motor 102, the ball screw 105, and the sewage discharge motor 301 all adopt existing models.

[0019] During use, first start the drive motor 102, and then inject the water to be treated from the upper end of the primary screening cylinder 101. The water first passes through the filtration of the coarse screening plate 201, then penetrates into the fine screening cylinder 202, and then enters different water pipes 203. The holes on the coarse screening plate 201 are larger, which can initially filter out larger impurities and leave the impurities on the coarse screening plate 201. The holes on the fine screening cylinder 202 are smaller, which can leave the smaller impurities in the water between the primary screening cylinder 101 and the fine screening cylinder 202. The impurities on the surface of the fine screening cylinder 202 are cleaned by the brush disc 204. The water in the water pipes 203 continues to flow into different filter press cylinders 401. The filter press cylinders 401 can leave the fine suspended matter in the water in the filter press cylinders 401, discharge the clean water into the collection cylinder 501, and then flow out from the drain pipe 502. The above process is uniformly regulated by the linkage component.

[0020] To achieve the preliminary filtration effect, a primary screening cylinder 101 is provided. The linkage gear set includes a driving gear 103 and a driven gear 104 meshing with it. The upper end of the primary screening cylinder 101 is fixedly connected to a driving motor 102. The output shaft of the driving motor 102 is fixedly connected to the driving gear 103. The driving gear 103 is fixedly connected to the fine screening cylinder 202. The driving gear 103 meshes with two driven gears 104 respectively. The driven gears 104 are rotatably connected to the primary screening cylinder 101 through brackets. The upper end of each driven gear 104 is fixedly connected to an upper end of a ball screw 105. The output ends of the two ball screws 105 are fixedly connected to a brush disc 204. One end of a plurality of brush head fixing rods 205 is hinged to the lower end of the brush disc 204. The other end of the brush head fixing rod 205 is fixedly connected to a brush head 206. A compression spring 207 is fixedly connected between the upper end of the brush head fixing rod 205 and the lower surface of the brush disc 204. The lower end of the fine screening cylinder 202 is fixedly communicated with one end of a plurality of water pipes 203. The other end of each water pipe 203 is fixedly communicated with the upper end of a different filter pressing cylinder 401.

[0021] During use, first start the driving motor 102. The driving motor 102 drives the driving gear 103 to rotate. The driving gear 103 drives the two driven gears 104 to rotate. The driven gears 104 drive the ball screws 105 to rotate. The ball screws 105 drive the brush disc 204 to move downward. The brush disc 204 drives the brush head fixing rods 205 to move. At this time, the compression spring 207 is compressed to the shortest state and cannot be compressed further. Therefore, when the brush disc 204 drives the brush head fixing rods 205 to move, the brush head fixing rods 205 remain perpendicular to the fine screening cylinder 202. The brush head fixing rods 205 drive the brush heads 206 to move. At the same time, the driving gear 103 will drive the fine screening cylinder 202 to rotate. The brush heads 206 can clean the impurities attached to the fine screening cylinder 202. The ball screws 105 drive the smooth rods 106 to rotate. The smooth rods 106 drive the ball screws 105 at their lower ends to rotate. The ball screws 105 drive the conical push blocks 107 to move downward. The conical push blocks 107 drive the filter pressing cylinders 401 to press-filter the water. When the cleaning is completed, drive the driving motor 102 again to rotate it in the reverse direction. The driving motor 102 drives the ball screws 105 to rotate. The ball screws 105 drive the brush disc 204 to move upward. At this time, the brush heads 206 are subject to the frictional force on the surface of the fine screening cylinder 202. The brush heads 206 drive the brush head fixing rods 205 to rotate. The brush head fixing rods 205 drive the compression spring 207 to stretch, ensuring that the brush heads 206 do not come into close contact with the surface of the fine screening cylinder 202, thereby preventing the impurities on the brush heads 206 from being redeposited on the fine screening cylinder 202 again and ensuring the cleaning effect of the brush disc 204.

[0022] To achieve a further filtering effect, a pressure filter cylinder 401 is provided. The secondary extrusion structure includes an elastic membrane 404. An elastic membrane 404 is fixedly connected inside each pressure filter cylinder 401. The pressure filter cylinder 401 is fixedly communicated with a water injection pipe 405 at the position where the elastic membrane 404 is located. A plurality of water injection pipes 405 are communicated with each other and are finally fixedly communicated with a water tank 406. The middle parts of a plurality of pressure filter cylinders 401 are fixedly connected to the same collection cylinder 501. A drain pipe 502 is fixedly communicated below the collection cylinder 501. A sewage door is provided at the lower end of each pressure filter cylinder 401. The pressure filter cylinder 401 is fixedly connected to the ground through a support leg 503.

[0023] When the conical push block 107 moves downward, the upper end of the conical push block 107 is thicker than the lower end. Therefore, the conical push block 107 can push the push rod 402 to move. The push rod 402 drives the filter plate 403 to move. The filter plate 403 squeezes the water inside. A one-way valve is provided inside the water pipe 203 near the inside of the pressure filter cylinder 401 to ensure that the water will not be pushed back into the water pipe 203. At this time, the water inside the pressure filter cylinder 401 starts to seep out from the filter plate 403 due to the pressure of the filter plate 403. A water pump is provided inside the water tank 406. When the water pump is started, the water inside the water tank 406 starts to flow into the water injection pipe 405. The water inside the water tank 406 continues to flow into different elastic membranes 404. The elastic membrane 404 deforms under the pressure of the water and further fits the surface of the filter plate 403, which can apply a greater pressure inside the pressure filter cylinder 401, thereby increasing the water extraction rate. The water seeping out from the filter plate 403 flows into the collection cylinder 501 and finally flows out from the drain pipe 502. When the pressure filtration is completed, at this time, the drive motor 102 rotates reversely. The ball screw 105 at the lower end of the optical rod 106 drives the conical push block 107 to move upward. A spring is provided between the filter plate 403 and the pressure filter cylinder 401. The spring pushes the filter plate 403 to move. The filter plate 403 drives the push rod 402 to move. The filter plate 403 and the push rod 402 are reset, so that the next pressure filtration can be carried out. At the same time, the water inside the elastic membrane 404 is returned to the water tank 406 through the water pump. At this time, there is sludge composed of fine particle impurities with a low water content inside the pressure filter cylinder 401.

[0024] To solve the problem of the accumulation of filtered impurities and silt and achieve the effect of cleaning impurities and silt, a push plate 311 is provided. There is a groove on the outside of the coarse sieve plate 201, and a conveying shaft 306 is arranged in the groove. A sewage discharge groove 312 is arranged in the middle of the coarse sieve plate 201. The bottom surface of the sewage discharge groove 312 is an inclined surface. A sewage discharge channel is opened at the position where the primary sieve cylinder 101 inclines downward in the sewage discharge groove 312. A sewage discharge door is arranged at the sewage discharge channel. A sewage storage tank 313 is fixedly connected to the lower end of the sewage discharge channel of the primary sieve cylinder 101; a sewage discharge motor 301 is fixedly connected to the outside of the primary sieve cylinder 101. The output shaft of the sewage discharge motor 301 is fixedly connected with a pulley 304. A sewage discharge driving gear 302 is fixedly connected to the pulley 304. A sewage discharge driven gear 303 is rotatably connected to the outside of the primary sieve cylinder 101. The sewage discharge driven gear 303 meshes with the sewage discharge driving gear 302. The sewage discharge driven gear 303 is on the side far from the primary sieve cylinder 101 and is fixedly connected with an eccentric column 308 at a position not at the center of the circle. One end of each of two rotating rods 309 is rotatably connected to the eccentric column 308. The other end of each rotating rod 309 is rotatably connected to one end of a sliding rod 310. The other end of the sliding rod 310 is fixedly connected to one end of the push plate 311 through a rod, so that the sliding rod 310 always remains horizontal. There is a groove on the primary sieve cylinder 101 for the rod to slide. The push plate 311 is slidably connected in the primary sieve cylinder 101. The lower surface of the push plate 311 is in contact connection with the upper surface of the coarse sieve plate 201; both ends of the conveying shaft 306 extend out of the primary sieve cylinder 101. A pulley 304 is fixedly connected to one end of each conveying shaft 306 close to the sewage discharge motor 301. A belt 305 is sleeved on the pulley 304 on the belt pulley 304 of the sewage discharge driving gear 302. A partition is arranged between the two belts 305 on the pulley 304 of the sewage discharge driving gear 302 to prevent the two belts 305 from interfering. A spiral blade 307 is fixedly connected to the outside of each conveying shaft 306. A sewage discharge pipe 208 is arranged on the bottom surface of the primary sieve cylinder 101. A sewage discharge door is arranged on the sewage discharge pipe 208.

[0025] When the water treatment process is completed, the garbage treatment process starts at this time, including the impurities at the upper end of the coarse sieve plate 201, the impurities between the primary sieve cylinder 101 and the fine sieve cylinder 202, and the impurities in the pressure filter cylinder 401; When it is necessary to handle the impurities at the upper end of the coarse sieve plate 201, first stop injecting water into the primary sieve cylinder 101, start the sewage discharge motor 301. The sewage discharge motor 301 drives the pulley 304 to rotate. The pulley 304 drives the sewage discharge driving gear 302 to rotate. The sewage discharge driving gear 302 drives the sewage discharge driven gear 303 to rotate. The sewage discharge driven gear 303 drives the eccentric column 308 to rotate. The eccentric column 308 drives the two rotating rods 309 to move. The rotating rods 309 drive the sliding rods 310 to move. The sliding rods 310 drive the push plates 311 connected thereto to reciprocate. The push plates 311 push the impurities on the upper side of the coarse sieve plate 201 into the conveying shaft 306 and the sewage discharge groove 312. At this time, open the sewage discharge door connected to the sewage discharge groove 312. The impurities in the sewage discharge groove 312 gradually slide down from the sewage discharge door along with the change of the slope, and thus enter the sewage storage tank 313; while the pulley 304 rotates, it will drive the pulleys 304 on both sides to rotate through the two belts 305. One end of the pulley 304 drives the conveying shaft 306 to rotate. The other end of the conveying shaft 306 is rotatably connected to the bracket provided on the primary sieve cylinder 101. The conveying shaft 306 drives the spiral blade 307 to rotate, as Figure 13 , the primary sieve cylinder 101 is provided with a gap at the terminal positions of the conveying shaft 306 and the spiral blade 307 that can allow impurities to be discharged. The conveying shaft 306 and the spiral blade 307 are equivalent to the function of a screw conveyor shaft. Under continuous rotation, the impurities are pushed out from the gap provided on the primary sieve cylinder 101 into the sewage storage tank 313; when it is necessary to handle the impurities between the primary sieve cylinder 101 and the fine sieve cylinder 202, open the sewage discharge door on the sewage discharge pipe 208, and the impurities in the primary sieve cylinder 101 flow out from the sewage discharge pipe 208; when it is necessary to handle the impurities in the pressure filter cylinder 401, open the sewage discharge door at the lower end of the pressure filter cylinder 401, and the impurities in the pressure filter cylinder 401 flow out from the sewage discharge door; the sewage discharge door is opened by means of, for example, electric control.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water quality regulation and purification treatment system based on dewatering water and reclaimed water, characterized in that: Including: Initial screening module: The initial screening module includes an initial screening cylinder (101). Inside the initial screening cylinder (101), a coarse screening plate (201) and a fine screening cylinder (202) are fixedly connected. The coarse screening plate (201) is located at the upper end of the initial screening cylinder (101), and the fine screening cylinder (202) is located in the middle of the initial screening cylinder (101) and can be rotated by the drive of a drive motor (102). Outside the fine screening cylinder (202), there is a brush disc (204) that moves up and down to clean the outside of the fine screening cylinder (202). The rotation of the fine screening cylinder (202) and the up and down movement of the brush disc (204) are synchronized by a linkage gear set. Filter pressing module: The filter pressing module includes a filter pressing cylinder (401). Inside the filter pressing cylinder (401), a filter plate (403) is slidably connected. The outside of the filter plate (403) is fixedly connected with a push rod (402). Inside the filter pressing cylinder (401), a secondary extrusion structure is also provided. Linkage component: At the lower end of the initial screening cylinder (101), several filter pressing cylinders (401) are provided. The initial screening cylinder (101) and the filter pressing cylinders (401) work synchronously through a linkage component. The linkage component includes two ball screws (105). The movement of the brush disc (204) is driven by the two ball screws (105). The ball screws (105) are driven by a linkage gear set. After the two ball screws (105) pass through the lower end of the initial screening cylinder (101), conical push blocks (107) are provided on them. Each ball screw (105) is rotatably and sealingly connected to the initial screening cylinder (101), and the connection part is a smooth rod (106). The conical push block (107) can push the push rod (402) outside the filter plate (403).

2. The water quality regulation and purification treatment system based on dewatering water and reclaimed water according to claim 1, characterized in that: The linkage gear set includes a driving gear (103) and a driven gear (104) meshing with it. The upper end of the initial screening cylinder (101) is fixedly connected with a drive motor (102). The output shaft of the drive motor (102) is fixedly connected with the driving gear (103). The driving gear (103) is fixedly connected with the fine screening cylinder (202). The driving gear (103) meshes with the two driven gears (104) respectively. The driven gears (104) are rotatably connected to the initial screening cylinder (101) through brackets. Each driven gear (104) is fixedly connected with the upper end of a ball screw (105).

3. The water quality regulation and purification treatment system based on drained water and reclaimed water according to claim 2, characterized in that: The output ends of the two ball screws (105) are fixedly connected with the brush disc (204). One end of several brush head fixing rods (205) is hinged to the lower end of the brush disc (204). The other end of the brush head fixing rod (205) is fixedly connected with a brush head (206). A spring (207) is fixedly connected between the upper end of the brush head fixing rod (205) and the lower surface of the brush disc (204).

4. The water quality regulation and purification treatment system based on drained water and reclaimed water according to claim 1, wherein: A groove is provided outside the coarse screening plate (201). A conveying shaft (306) is provided in the groove. A sewage discharge groove (312) is provided in the middle of the coarse screening plate (201). The bottom surface of the sewage discharge groove (312) is an inclined surface. A sewage discharge channel is provided at the position where the initial screening cylinder (101) is inclined downward at the sewage discharge groove (312). A sewage discharge door is provided at the sewage discharge channel. A sewage storage tank (313) is fixedly connected to the lower end of the initial screening cylinder (101) at the sewage discharge channel.

5. The water quality regulation and purification treatment system based on drained water and reclaimed water according to claim 4, characterized in that: A sewage discharge motor (301) is fixedly connected to the outside of the primary screening cylinder (101). The output shaft of the sewage discharge motor (301) is fixedly connected to a pulley (304). A sewage discharge drive gear (302) is fixedly connected to the pulley (304). A sewage discharge driven gear (303) is rotatably connected to the outside of the primary screening cylinder (101). The sewage discharge driven gear (303) meshes with the sewage discharge drive gear (302). The sewage discharge driven gear (303) is on the side away from the primary screening cylinder (101) and is fixedly connected to an eccentric column (308) at a position not at the center of the circle. One end of two rotating rods (309) is rotatably connected to the eccentric column (308). The other end of each rotating rod (309) is rotatably connected to one end of a sliding rod (310). The other end of the sliding rod (310) is fixedly connected to one end of a push plate (311) through a rod, so that the sliding rod (310) always remains horizontal. A groove for the rod to slide is provided on the primary screening cylinder (101). The push plate (311) is slidably connected inside the primary screening cylinder (101). The lower surface of the push plate (311) is in contact connection with the upper surface of the coarse screening plate (201).

6. The water quality regulation and purification treatment system based on drained water and reclaimed water according to claim 5, characterized in that: Both ends of the conveying shaft (306) extend out of the primary screening cylinder (101). A pulley (304) is fixedly connected to each end of the conveying shaft (306) close to the sewage discharge motor (301). A belt (305) is sleeved on the pulley (304) on the sewage discharge drive gear (302) and the pulley (304) on the conveying shaft (306). A partition is provided between the pulleys (304) on the sewage discharge drive gear (302) to prevent interference between the two belts (305). A spiral blade (307) is fixedly connected to the outside of each conveying shaft (306).

7. The water quality regulation and purification treatment system based on drained water and reclaimed water according to claim 1, characterized in that: One end of a number of water pipes (203) is fixedly communicated with the lower end of the fine screening cylinder (202). The other end of each water pipe (203) is fixedly communicated with the upper end of a different pressure filtration cylinder (401).

8. The water quality regulation and purification treatment system based on drained water and reclaimed water according to claim 7, characterized in that: The secondary extrusion structure includes an elastic membrane (404). An elastic membrane (404) is fixedly connected inside each pressure filtration cylinder (401). A water injection pipe (405) is fixedly communicated with the pressure filtration cylinder (401) at the position where the elastic membrane (404) is located. A number of water injection pipes (405) are communicated with each other and are finally fixedly communicated with a water tank (406). The middle parts of a number of pressure filtration cylinders (401) are fixedly connected to the same collection cylinder (501). A drain pipe (502) is fixedly communicated with the lower part of the collection cylinder (501).

9. The water quality regulation and purification treatment system based on drained water and reclaimed water according to claim 8, wherein: A sewage discharge door is provided at the lower end of each pressure filtration cylinder (401). The pressure filtration cylinder (401) is fixedly connected to the ground through a support leg (503).

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