Sewage recycling device for water environment treatment

Abstract

The invention provides a sewage recycling device for water environment treatment, and relates to the technical field of sewage treatment equipment, the sewage recycling device comprises a pre-filtering box, a clearing vertical frame, a clearing sliding frame, a mixing box, a control box, a settling box, a clean water transverse overflow pipe, a clean water box and a collecting pipe; the pre-filtering box is suspended on one side of the upper end of the settling box through a support frame, the lower end of the pre-filtering box is the mixing box, and the lower end of the mixing box is in butt joint with one side of the upper end of the settling box; and an aeration disc is arranged in the settling box. The self-cleaning system of the pre-filtering box solves the problem that a traditional filtering device is easy to block. When the clearing motor drives the clearing screw rod to drive the clearing sliding frame to horizontally move along the clearing guide groove, the scraping plate is tightly attached to the filter plate under the continuous pressure of the buffer spring to scrape impurities; and when the scraper moves to the top of the arc table, dirt is pushed into the blow-off pipe by the lifted scraper, and meanwhile, the locking insertion rod is inserted into the lock hole of the guide rod to lock the height.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment equipment, and in particular to a sewage recycling device for water environment treatment. Background Art

[0002] In the current field of water environment management, sewage reuse devices commonly suffer from problems such as easy clogging of filter units, uneven mixing of reagents, low solid-liquid separation efficiency, and difficult maintenance of sludge discharge channels. Traditional pre-filtration structures require frequent shutdowns for filter cleaning, affecting treatment continuity; the mixing process often relies on mechanical agitation, which consumes a lot of energy and produces unstable mixing effects; the flotation and sedimentation in the sedimentation unit lack synergy, resulting in incomplete floc separation; and the sludge collection pipelines are prone to siltation and blockage, requiring manual cleaning, increasing the operation and maintenance burden. Existing technologies struggle to balance the requirements of automated operation, efficient treatment, and low maintenance costs, hindering the promotion of wastewater resource utilization. Summary of the Invention

[0003] The present invention relates to a sewage recycling device for water environment treatment. The device efficiently removes large-particle impurities through a pre-filter box and its automatic cleaning mechanism. The unique reagent mixing mechanism in the mixing box ensures that the reagent and sewage fully react. The sedimentation box realizes efficient solid-liquid separation by combining the flotation and sedimentation effects of the aeration plate. The clean water overflow pipe collects the upper clear liquid to the clean water tank for reuse. The collection pipe cooperates with the gate plate and the flushing pipe to realize the reliable collection and cleaning of the settled sludge. The whole device has a compact structure, a high degree of automation and a good treatment effect.

[0004] The present invention provides a sewage recycling device for water environment treatment, which specifically comprises: a pre-filter box, a cleaning stand, a cleaning slide, a mixing box, a control box, a sedimentation box, a clean water overflow pipe, a clean water tank and a collection pipe; the pre-filter box is suspended on one side of the upper end of the sedimentation box through a support frame, the lower end of the pre-filter box is a mixing box, and the lower end of the mixing box is connected to one side of the upper end of the sedimentation box; an aeration disk is provided in the sedimentation box; a clean water overflow pipe is externally connected to the upper middle part of the other side of the sedimentation box, and the other end of the clean water overflow pipe is connected to the clean water tank; a collection pipe connected to the inner cavity is provided at the bottom of the side wall of the sedimentation box below the clean water overflow pipe; the control box is hung on the support frame below the pre-filter box; The bottom of one end of the pre-filter box is an upward curved arc platform structure, and the other end of the bottom of the inner cavity of the pre-filter box is an upward convex slope; the bottom plate between the slope and the arc platform structure of the pre-filter box is a filter plate, and the bottom of the filter plate is the upper end of the mixing box cavity; the upper end of the pre-filter box is horizontally provided with a cleaning stand; a cleaning slide is horizontally slidably installed on the cleaning stand, and a cleaning mechanism is provided on the cleaning slide, and a traveling contact mechanism is provided on the cleaning stand. During the process of the traveling contact mechanism driving the cleaning slide to move from one end of the slope to the other end, the bottom of the cleaning mechanism is always in contact with the top of the filter plate. When moving in the opposite direction, the cleaning mechanism is separated from the bottom of the pre-filter box; a pharmaceutical mixing mechanism is provided in the mixing box.

[0005] Optionally, a sewage inlet pipe is provided in the middle of the side plate at one end of the pre-filter box, and a sewage discharge pipe is fixed vertically downward on the top of the arc platform structure of the pre-filter box. The sewage discharge pipe is a structure that is wide at the top and narrow at the bottom. A cleaning connecting pipe is connected to one side of the sewage inlet pipe, and the other end of the cleaning connecting pipe is connected to the upper end position of one side of the sewage discharge pipe. A solenoid valve is provided on the cleaning connecting pipe. The cleaning mechanism moves from one end of the slope once, and the solenoid valve on the cleaning connecting pipe opens once. The cleaning connecting pipe is unobstructed for at least 2 seconds. The opening and closing frequency of the solenoid valve is set by the controller in the control box, which is a multiple of the number of times the cleaning mechanism moves.

[0006] Optionally, the travel and contact mechanism includes a cleaning guide groove, a cleaning motor, a cleaning screw and a touch rod. The cleaning guide grooves are distributed on the inner sides of the upper ends of the two long sides of the cleaning stand, and the two ends of the cleaning slide are respectively slid into the cleaning guide grooves. The middle part of the cleaning stand is rotatably installed along the pre-filter box, and the cleaning screw is vertically rotated with the middle part of the lower end of the cleaning slide and is screwed; the cleaning motor is fixedly installed on the cleaning stand at one end of the sewage pipe, and the cleaning motor is used to drive the cleaning screw to rotate. A touch rod is vertically fixed on the cleaning stand above the slope, and the touch rod corresponds to the middle part of the cleaning slide, and an unlocking hole is correspondingly opened through the middle part of the cleaning slide.

[0007] Optionally, the cleaning mechanism includes a guide rod, a lock hole, a card seat, a scraper, a water hole, a buffer spring, a locking piece, a locking rod and a locking tension spring, the card seat is located at the bottom of the cleaning slide, and the left and right ends of the top of the card seat are respectively vertically fixed with a guide rod, the guide rod slides vertically upward through the cleaning slide, and a buffer spring is set on the guide rod, and the buffer spring provides the card seat with a downward thrust all the time, and the scraper is fixedly installed at the lower end of the card seat, and the left and right ends of the scraper are respectively tangent to the inner side walls of the left and right ends of the pre-filter box, and water holes are provided on the upper and left sides of the middle part of the scraper. The water holes are used to provide a channel for water to pass through when the scraper scrapes dirt on the top of the filter plate. A locking piece is provided on the side of the cleaning slide away from the touch rod, and a locking plug is vertically provided on the left and right ends of the locking piece, and the locking plug slides vertically and is plugged in The cam is engaged with the locking element and the locking spring is extended, the locking element is pulled out of the locking hole, the guide rod is moved down, and the scraper falls down to the inclined surface of the slope.

[0008] Optionally, the drug mixing mechanism includes a drug inlet pipe, a mixing and diverting bottom tank, a mixing motor, a driving gear, a suction impeller, a driven gear, a diverting push wheel, a connecting pipe, a fluid collector, a mixing pipe, a separation cover and a diverting pipe. The mixing box is a structure that is wide at the top and narrow at the bottom. The lower end of the mixing box is a mixing and diverting bottom tank. A drug inlet pipe is vertically provided on one side of the middle of the upper end of the mixing box. The inner end of the drug inlet pipe extends to the middle of the mixing box and bends vertically downward toward the middle of the inner cavity of the mixing and diverting bottom tank. The upper end of the inner cavity of the mixing and diverting bottom tank is a fluid collector with a conical structure that is wide at the top and narrow at the bottom. The edge of the fluid collector is connected to the inner cavity of the mixing and diverting bottom tank. The lower end of the fluid collector is connected to the mixing pipe. The lower end of the mixing pipe extends to above the bottom of the inner cavity of the mixing and diverting bottom tank. A conical separation cover that is narrow at the top and wide at the bottom is fixedly installed on the mixing pipe. The edge of the separation cover is connected to the inner cavity of the mixing and diverting bottom tank. Two diverter pipes are vertically symmetrically arranged on the left and right sides of the separation cover. A mixing motor is vertically suspended at the bottom of the mixing and diverting bottom tank. A driving gear is fixedly installed on the rotating shaft of the mixing motor. The rotating shaft of the driving gear penetrates upward into the mixing and diverting bottom tank and extends into the mixing pipe and is fixed with a spiral suction impeller. The suction impeller rotates with the rotating shaft of the driving gear to transport sewage downward. The bottom of the mixing and diverting bottom tank on both sides of the driving gear is respectively rotated and installed with meshing driven gears. The rotating shaft of the driven gear penetrates upward into the mixing and diverting bottom tank and extends into the diverter pipe and is fixed with a spiral diverter pusher. The diverter pusher sucks the mixed sewage under the separation cover upward. A connecting pipe is provided on the side wall of the cavity between the separation cover and the concentrating body, and the connecting pipe is connected to the sedimentation box.

[0009] Optionally, an aeration plate is fixedly installed at the upper end of the inner cavity of the sedimentation tank. The aeration plate is a rack frame structure, and the upper end of the aeration plate is open. The end of the connecting pipe in the sedimentation tank is above the aeration plate. Weir openings are evenly spaced at the edge of the upper end of the aeration plate. Air pipes are distributed at the bottom of the aeration plate, and jet heads are evenly spaced on the air pipes. The jet heads extend to the bottom of the inner cavity of the aeration plate, and the air pipes are supplied with air through an external air pump.

[0010] Optionally, a sedimentation diversion slope inclined toward the clean water tank is provided at the bottom of the inner cavity of the sedimentation tank, and a collecting port is provided on the side plate of the sedimentation tank at the bottom of the sedimentation diversion slope, and the collecting port is connected to the inner cavity of the collection pipe.

[0011] Optionally, a flushing pipe is provided at each end of the collecting pipe. A gate plate is vertically slidably provided at one end of the collecting pipe close to the sedimentation box. The gate plate is a horizontal "T"-shaped structure. The middle part of the horizontal plate of the gate plate is vertically rotated and connected to a lifting screw. The lower end of the lifting screw is connected to the top of the collecting pipe. The lifting screw controls the lifting and lowering of the gate plate. When the collecting pipe collects sediment, the gate plate is at the upper end of the collecting port. When the collecting pipe needs to be cleaned, the gate plate closes the collecting port, and the flushing pipe and the external high-pressure water form a one-way cleaning channel.

[0012] The present invention provides a sewage recycling device for water environment treatment, which has the following beneficial effects: The self-cleaning system of the pre-filter box in the present invention solves the pain point of easy clogging of traditional filtering devices. When the cleaning motor drives the cleaning screw to drive the cleaning slide to move horizontally along the cleaning guide groove, the scraper is pressed against the filter plate under the continuous pressure of the buffer spring to scrape impurities; when it moves to the top of the arc platform, the dirt is pushed into the sewage pipe by the lifted scraper, and at the same time, the locking rod is inserted into the lock hole of the guide rod to lock the height. During the reset process, the scraper is suspended in the air to avoid secondary contamination of the filter surface. After the touch rod is inserted into the unlocking socket to release the lock, the scraper automatically falls back to the slope. In conjunction with the timed flushing (at least 2 seconds each time) triggered by the cleaning connecting pipe according to the scraping frequency, the sewage pipe is completely prevented from being blocked, the continuity of filtration is guaranteed, and the maintenance frequency is reduced.

[0013] The mixing box's turbulence-enhancing mechanism achieves efficient mixing of the chemicals and wastewater. The mixing motor synchronously drives the drive gear and meshing driven gear, driving the suction impeller to draw the sewage downward within the mixing pipe. Simultaneously, the diversion impeller pushes the mixed liquid upward within the diversion pipe. After the sewage is converged by the converging body, a strong turbulent flow (downward in the center, upward at the edges) is generated within the circulation channel separated by the separation hood. This rapidly diffuses the chemicals introduced into the inlet pipe, improving mixing efficiency and reducing energy consumption.

[0014] The synergistic separation and intelligent mud discharge system in the sedimentation tank optimizes the solid-liquid separation process. Air jets at the bottom of the aeration plate release microbubbles, allowing light flocs to overflow from the weir due to flotation, while heavy flocs slide down the sedimentation diversion slope into the collection port. The supernatant liquid overflows through the clean water overflow pipe to the clean water tank for reuse. The collection pipe is controlled by a gate and a lifting screw: the gate rises during normal mud discharge and closes the collection port in the event of blockage. High-pressure water is injected through flushing pipes at both ends for one-way flushing, improving mud discharge efficiency and reducing maintenance time.

[0015] The overall layout and integrated control system further enhance the device's advantages. The control box centrally controls the direction of the cleaning motor, the speed of the mixing motor, and the solenoid valve in the cleaning connection pipe (triggered by the scraping frequency multiplier), achieving fully automated operation. The pre-filter tank is suspended above the settling tank, with the mixing tank centrally connected, creating a three-dimensional structure that saves space compared to a flat layout. This device utilizes mechanical innovations to overcome industry challenges such as filter blockage, uneven mixing, and sludge accumulation, improving treatment efficiency by over 10%, providing technical support for efficient and low-cost wastewater resource utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0017] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached figure: Figure 1 shows a schematic diagram of the first axial view of the present invention; Figure 2 shows a second axial structural schematic diagram of the present invention; Figure 3 shows a schematic structural diagram of the third axis view of the present invention; Figure 4 A schematic diagram of the partial axial structure of the pre-filter box and the mixing box of the present invention is shown; Figure 5 It shows an axial structural schematic diagram of the pre-filter box and the mixing box in a partially separated state; Figure 6 A schematic diagram of the axial structure of the cleaning carriage of the present invention is shown; Figure 7 It shows a schematic diagram of the axial structure of the cleaning slide in a partially disassembled state of the present invention; Figure 8 It shows a schematic diagram of the axial structure of the mixing box of the present invention in a partially half-cut and separated state; Figure 9 It shows a schematic diagram of the axial structure of the mixing box part of the present invention in a further disassembled state; Figure 10 It shows a schematic diagram of the axial structure of the sedimentation box of the present invention in a partially separated state of the side plates; Figure 11 The figure shows a schematic structural diagram of the collecting tube of the present invention.

[0019] List of reference numerals: 1. Pre-filter box; 101. Sewage inlet pipe; 102. Sewage discharge pipe; 103. Clean connecting pipe; 104. Filter plate; 105. Slope; 2. Clear the stand; 201. Clear the guide groove; 202. Clear the motor; 203. Clear the screw rod; 204. Touch rod; 3. Clearing carriage; 301. Guide rod; 3011. Locking hole; 302. Clamping seat; 303. Scraper; 3031. Water hole; 304. Buffer spring; 305. Locking piece; 306. Locking rod; 307. Locking spring; 308. Unlocking hole; 4. Mixing box; 401. Chemical inlet pipe; 402. Mixing and diverting bottom tank; 403. Mixing motor; 404. Driving gear; 4041. Suction impeller; 405. Driven gear; 4051. Diverting push wheel; 406. Connecting pipe; 407. Converging fluid; 4071. Mixing pipe; 408. Separating cover; 4081. Diverting pipe; 5. Control box; 6. Settling box; 601. Aeration plate; 602. Weir; 603. Air pipe; 604. Air nozzle; 605. Settling diversion slope; 606. Collection port; 7. Clean water overflow pipe; 8. Clean water tank; 9. Collection pipe; 901. Flushing pipe; 902. Gate; 903. Lifting screw. DETAILED DESCRIPTION

[0020] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Please refer to Figures 1 to 11 : Example 1: The present invention proposes a sewage reuse device for water environment treatment, comprising: a pre-filter box 1, a cleaning stand 2, a cleaning slide 3, a mixing box 4, a control box 5, a sedimentation box 6, a clean water overflow pipe 7, a clean water tank 8 and a collecting pipe 9; the pre-filter box 1 is suspended on one side of the upper end of the sedimentation box 6 through a support frame, the lower end of the pre-filter box 1 is the mixing box 4, and the lower end of the mixing box 4 is connected to one side of the upper end of the sedimentation box 6; an aeration plate 601 is provided in the sedimentation box 6; a clean water overflow pipe 7 is externally connected to the upper middle part of the other side of the sedimentation box 6, and the other end of the clean water overflow pipe 7 is connected to the clean water tank 8; a collecting pipe 9 connected to the inner cavity is provided at the bottom of the side wall of the sedimentation box 6 below the clean water overflow pipe 7; the control box 5 is hung on the support frame below the pre-filter box 1; The bottom of one end of the pre-filter box 1 is an upward curved arc platform structure, and the other end of the bottom of the inner cavity of the pre-filter box 1 is an upward convex slope 105; the bottom plate between the slope 105 and the arc platform structure of the pre-filter box 1 is a filter plate 104, and the bottom of the filter plate 104 is the upper end of the mixing box 4 cavity; the upper end of the pre-filter box 1 is horizontally provided with a cleaning stand 2; a cleaning slide 3 is horizontally slidably installed on the cleaning stand 2, and a cleaning mechanism is provided on the cleaning slide 3, and a traveling contact mechanism is provided on the cleaning stand 2. During the process of the traveling contact mechanism driving the cleaning slide 3 to move from one end of the slope 105 to the other end, the bottom of the cleaning mechanism is always in contact with the top of the filter plate 104. When moving in the opposite direction, the cleaning mechanism is separated from the bottom of the pre-filter box 1; a pharmaceutical mixing mechanism is provided in the mixing box 4.

[0022] Among them, a sewage inlet pipe 101 is provided in the middle of the side plate at one end of the pre-filter box 1, and a sewage discharge pipe 102 is fixed vertically downward on the top of the arc platform structure of the pre-filter box 1. The sewage discharge pipe 102 is a structure that is wide at the top and narrow at the bottom. A cleaning connecting pipe 103 is connected to one side of the sewage inlet pipe 101, and the other end of the cleaning connecting pipe 103 is connected to the upper end position of one side of the sewage discharge pipe 102. A solenoid valve is provided on the cleaning connecting pipe 103. The cleaning mechanism moves from one end of the slope 105 once, and the solenoid valve on the cleaning connecting pipe 103 opens once, and the cleaning connecting pipe 103 is unobstructed for at least 2 seconds. The opening and closing frequency of the solenoid valve is set by the controller in the control box 5, which is a multiple of the number of times the cleaning mechanism travels.

[0023] Among them, the traveling and contact-free mechanism includes a cleaning guide groove 201, a cleaning motor 202, a cleaning screw rod 203 and a touch rod 204. The cleaning guide groove 201 is distributed on the inner side of the upper ends of the two long sides of the cleaning stand 2, and the two ends of the cleaning slide 3 are respectively slid into the cleaning guide groove 201. The middle part of the cleaning stand 2 is rotatably installed along the pre-filter box 1, and the cleaning screw rod 203 is vertically rotated with the middle part of the lower end of the cleaning slide 3 and is screwed; the cleaning motor 202 is fixedly installed on the cleaning stand 2 at one end of the sewage pipe 102, and the cleaning motor 202 is used to drive the cleaning screw rod 203 to rotate. A touch rod 204 is vertically fixed on the cleaning stand 2 above the slope 105, and the touch rod 204 corresponds to the middle part of the cleaning slide 3. An unlocking socket 308 is correspondingly opened through the middle part of the cleaning slide 3.

[0024] The cleaning mechanism includes a guide rod 301, a locking hole 3011, a card seat 302, a scraper 303, a water hole 3031, a buffer spring 304, a locking piece 305, a locking rod 306 and a locking tension spring 307. The card seat 302 is located at the bottom of the cleaning slide 3. The left and right ends of the top of the card seat 302 are respectively vertically fixed with a guide rod 301. The guide rod 301 slides vertically upward through the cleaning slide 3. The buffer spring 304 is set on the guide rod 301. The buffer spring 304 provides a downward thrust for the card seat 302. The scraper 303 is fixedly installed at the lower end of 302, and the left and right ends of the scraper 303 are tangent to the inner side walls of the left and right ends of the pre-filter box 1 respectively. A water hole 3031 is provided on the upper left and right sides of the middle part of the scraper 303. The water hole 3031 is used to provide a channel for water to pass through when the scraper 303 scrapes the dirt on the top of the filter plate 104. A locking piece 305 is provided on the side of the cleaning slide 3 away from the touch rod 204. The left and right ends of the locking piece 305 are respectively vertically provided with a locking rod 306, which is vertically slidably inserted into the cleaning slide The inner end of the locking rod 306 is against the guide rod 301, and a locking spring 307 is provided on the locking rod 306. The two ends of the locking spring 307 are fixedly connected to the locking member 305 and the cleaning slide 3 respectively. A vertical waist-shaped lock hole 3011 is opened near the lower end of the guide rod 301. When the scraper 303 of the cleaning mechanism moves from one end of the slope 105 to the other end along the filter plate 104, the scraper 303 moves up to the top along the arc structure to scrape the dirt into the sewage pipe 102, and the buffer spring 304 is compressed. The guide rod 301 moves up, the end of the locking rod 306 is inserted into the locking hole 3011, the height of the locking rod 306 is fixed, the cleaning motor 202 resets and rotates, and the cleaning slide 3 moves to above the slope 105. During this process, the lower end of the scraper 303 does not contact the filter plate 104, the touch rod 204 is inserted into the unlocking hole 308, and squeezes the locking piece 305, the locking tension spring 307 extends, the locking rod 306 is withdrawn from the lock hole 3011, the guide rod 301 moves down, and the scraper 303 falls to the inclined surface of the slope 105.

[0025] The medicine mixing mechanism includes a medicine inlet pipe 401, a mixing and diverting bottom tank 402, a mixing motor 403, a driving gear 404, a suction impeller 4041, a driven gear 405, a diverting push wheel 4051, a connecting pipe 406, a fluid concentrator 407, a mixing pipe 4071, a separating cover 408 and a diverting pipe 4081. The mixing box 4 is a structure with a wide top and a narrow bottom. The lower end of the mixing box 4 is a mixing and diverting bottom tank 402. A medicine inlet pipe 401 is vertically provided on one side of the middle of the upper end of the mixing box 4. The medicine inlet pipe 401 is provided on the middle side of the upper end of the mixing box 4. The inner end of the mixing box 1 extends to the middle of the mixing box 4 and bends vertically downward toward the middle of the inner cavity of the mixing and diverting bottom tank 402. The upper end of the inner cavity of the mixing and diverting bottom tank 402 is a conical structured conical fluid collector 407 with a width on the top and a narrowness on the bottom. The edge of the conical fluid collector 407 is connected to the inner cavity of the mixing and diverting bottom tank 402. The lower end of the conical fluid collector 407 is connected to the lower end of the mixing tube 4071. The lower end of the mixing tube 4071 extends to the upper part of the inner cavity of the mixing and diverting bottom tank 402. A conical separation cover 408 with a width on the top and a narrowness on the bottom is fixedly installed on the mixing tube 4071 to separate The edge of the cover 408 is connected to the inner cavity of the mixing and diverting bottom tank 402. Two diverter pipes 4081 are vertically symmetrically provided on the separation cover 408. A mixing motor 403 is vertically suspended at the bottom of the mixing and diverting bottom tank 402. A driving gear 404 is fixedly installed on the rotating shaft of the mixing motor 403. The rotating shaft of the driving gear 404 passes upward into the mixing and diverting bottom tank 402 and extends to the mixing pipe 4071 and is fixed with a spiral suction impeller 4041. The suction impeller 4041 rotates with the rotating shaft of the driving gear 404. The sewage is transported downward, and the driven gears 405 meshing with each other are rotated and installed at the bottom of the mixing and diverting bottom tank 402 on both sides of the driving gear 404. The rotating shaft of the driven gear 405 passes upward into the mixing and diverting bottom tank 402 and extends into the diverter pipe 4081 and is fixed with a spiral diverter pusher 4051. The diverter pusher 4051 sucks the mixed sewage under the separation cover 408 upward. A connecting pipe 406 is provided on the side wall of the cavity between the separation cover 408 and the concentrating fluid 407, and the connecting pipe 406 is connected to the sedimentation box 6.

[0026] Among them, an aeration plate 601 is fixedly installed at the upper end of the inner cavity of the sedimentation box 6. The aeration plate 601 is a rack frame structure. The upper end of the aeration plate 601 is open. The end of the connecting pipe 406 in the sedimentation box 6 is above the aeration plate 601. Weirs 602 are evenly spaced at the edge of the upper end of the aeration plate 601. Air pipes 603 are distributed at the bottom of the aeration plate 601. Air nozzles 604 are evenly spaced on the air pipes 603. The air nozzles 604 extend to the bottom of the inner cavity of the aeration plate 601, and the air pipes 603 are supplied with air through an external air pump.

[0027] Among them, a sedimentation diversion slope 605 inclined toward the side of the clean water tank 8 is provided at the bottom of the inner cavity of the sedimentation box 6, and a collection port 606 is opened on the side plate of the sedimentation box 6 at the bottom of the sedimentation diversion slope 605, and the collection port 606 is connected to the inner cavity of the collection pipe 9.

[0028] Example 2 On the basis of Example 1, a flushing pipe 901 is provided at each end of the collecting pipe 9. A gate plate 902 is vertically slidably provided at one end of the collecting pipe 9 close to the sedimentation box 6. The gate plate 902 is a horizontal "T"-shaped structure. The middle part of the horizontal plate of the gate plate 902 is vertically rotated and connected to a lifting screw rod 903. The lower end of the lifting screw rod 903 is connected to the top of the collecting pipe 9. The lifting screw rod 903 controls the lifting and lowering of the gate plate 902. When the collecting pipe 9 collects sediment, the gate plate 902 is at the upper end of the collecting port 606. When the collecting pipe 9 needs to be cleaned, the gate plate 902 closes the collecting port 606, and the flushing pipe 901 and the external high-pressure water form a one-way cleaning channel.

[0029] The following further explains and illustrates the functions and effects of each structure in the above content, so that those skilled in the art can better understand the technical solution: The system begins with a pre-filter box 1, suspended above the sedimentation tank 6 by a support frame. Its unique bottom structure (a curved platform at one end and a sloped riser 105 at the other) and the filter plates 104 in the center constitute the primary physical filtration unit. Sewage first enters the pre-filter box 1 through the sewage inlet pipe 101, where larger particles of impurities are trapped by the filter plates 104. A cleaning stand 2 mounted on the upper end of the pre-filter box 1 and a cleaning carriage 3 sliding thereon, in conjunction with a cleaning mechanism (comprising a guide rod 301, a retaining bracket 302, a scraper 303, a water hole 3031, a buffer spring 304, a locking element 305, a locking rod 306, and a locking tension spring 307) and a travel and release mechanism (comprising a cleaning guide 201, a cleaning motor 202, a cleaning screw 203, and a contact rod 204), automatically clean the surface of the filter plates 104. When the cleaning carriage 3 is driven by the cleaning motor 202, the cleaning screw 203 rotates, driving the cleaning mechanism from the slope 105 end toward the arc platform end. The scraper 303, acted upon by the buffer spring 304, presses against the surface of the filter plate 104 to remove dirt. Upon reaching the top of the arc platform, the scraper 303 is lifted, and the dirt is scraped into the drain pipe 102, which is wide at the top and narrow at the bottom, for discharge. During this process, the water hole 3031 allows water to flow through, ensuring continuous filtration. Simultaneously, the locking rod 306 is inserted into the locking hole 3011 of the guide rod 301 to lock the height. When the cleaning motor 202 reverses and resets the cleaning carriage 3, the height of the scraper 303 is locked, leaving it suspended in the air to prevent secondary contamination of the filter surface. When the cleaning carriage 3 returns to the top of the ramp 105, the fixed contact rod 204 inserts into the unlocking socket 308 of the cleaning carriage 3, pushing the locking member 305 to overcome the tension of the locking spring 307, allowing the locking rod 306 to exit the locking hole 3011. Under the influence of gravity, the guide rod 301 drives the scraper 303 downward to the inclined surface of the ramp 105, ready for the next cycle. Each time the scraper 303 completes a forward (scraping) stroke, the controller opens the solenoid valve on the cleaning connecting pipe 103, allowing some sewage to briefly flush the upper end of the sewage pipe 102 for approximately two seconds to prevent clogging. The pre-filtered sewage passes through the filter plate 104 and falls into the mixing tank 4 below.

[0030] The mixing tank 4 receives pre-filtered wastewater. Its upper portion is equipped with a chemical inlet pipe 401 for adding treatment chemicals (such as flocculants). The tank is designed to be wide at the top and narrow at the bottom, with the bottom connected to a mixing and diversion tank 402. The core of the tank is the chemical mixing mechanism, driven by a mixing motor 403. The mixing motor 403 is mounted at the bottom of the tank. Its rotating shaft drives a drive gear 404 and a suction impeller 4041 extending into a mixing pipe 4071 within the tank. The drive gear 404 simultaneously engages with two driven gears 405 on either side, and its rotating shaft drives a diversion impeller 4051 extending into a diversion pipe 4081. The wastewater and chemicals first enter the mixing tank 4, flow toward the converging body 407 (a tapered structure with a wide top and narrow bottom) within the tank, and then converge and enter the mixing pipe 4071. The suction impeller 4041 rotates within the mixing pipe 4071, generating a downward suction force and accelerating mixing. After the mixed liquid passes downward through separator hood 408 (a tapered structure with a wide bottom and narrow top), it is drawn upward through diversion pipe 4081 by diversion impeller 4051, forming an intense circulating flow from the center of the tank downward and then upward along the edge. Connecting pipe 406 is installed on the sidewall of the cavity between separator hood 408 and concentrator 407 to transport the fully mixed wastewater to sedimentation tank 6. This multi-stage, bidirectional turbulent flow design ensures rapid and thorough mixing of the reagent and wastewater.

[0031] The sedimentation tank 6 is a key unit for solid-liquid separation. The mixed sewage from the connecting pipe 406 of the mixing tank 4 first enters the upper end of the tank, located above the aeration plate 601. The aeration plate 601 is designed as a rib frame structure, with an air pipe 603 and a nozzle 604 arranged at the bottom. Microbubbles are generated by an external air pump. The rising process of the bubbles produces a flotation effect, carrying the flocculants to the upper port of the aeration plate 601, and overflowing through the evenly opened weir 602 to form a scum layer. At the same time, the heavier flocculants sink. The bottom of the sedimentation tank 6 is designed as a sedimentation guide slope 605, which is inclined toward the clean water tank 8. The settled sludge slides along this slope to the collection port 606 at the bottom of the slope. The middle part of the tank is connected to the clean water overflow pipe 7 near the upper side wall, and the upper clear liquid after sedimentation and flotation overflows from here into the clean water tank 8 for storage and reuse. A collection pipe 9 is connected to the outside of the collection port 606 at the bottom of the sedimentation diversion slope 605 to collect and discharge the settled sludge. Flushing pipes 901 are provided at both ends of the collection pipe 9, and a gate plate 902 ("T" shaped structure) is installed at the end close to the sedimentation box 6. The lifting screw 903 can control the raising and lowering of the gate plate 902. During normal collection, the gate plate 902 rises, and the sludge enters the collection pipe 9 from the collection port 606 and is discharged. When the collection pipe 9 needs to be cleaned, the gate plate 902 is lowered to close the collection port 606, and high-pressure water is connected through the flushing pipe 901 to flush the inside of the collection pipe 9 in one direction to prevent blockage and ensure smooth sludge discharge. The control box 5 that controls the operation of the entire device is hung on the support frame below the pre-filter box 1 for easy operation and maintenance.

[0032] Working principle: Sewage first enters the pre-filter box 1 through the sewage inlet pipe 101. Inside the pre-filter box 1, the sewage flows through the filter plate 104 for primary physical filtration, intercepting larger particles of impurities. The filtered sewage passes through the filter plate 104 and falls into the mixing box 4 below. At the same time, the automated cleaning system in the pre-filter box 1 begins to operate: the cleaning motor 202 drives the cleaning screw 203 to rotate, driving the cleaning slide 3 to move horizontally along the cleaning guide groove 201 on the cleaning stand 2 from the slope 105 end to the arc-shaped structure end. The scraper 303 fixed to the bottom of the holder 302, under the continuous downward thrust of the buffer spring 304, clings to the surface of the filter plate 104 to scrape away accumulated dirt. The water hole 3031 opened in the middle of the scraper 303 allows water to flow continuously, ensuring that the filtration process is not interrupted. When the scraper 303 moves to the top of the arc, it is lifted by the arc structure and pushes the scraped dirt into the sewage pipe 102, which is wide at the top and narrow at the bottom, for discharge. During this lifting process, the guide rod 301 moves upward. The locking rod 306, under the action of the locking spring 307, inserts into the locking hole 3011 at the lower end of the guide rod 301, locking the height of the scraper 303. The cleaning motor 202 then reverses, driving the cleaning carriage 3 to reset itself toward the slope 105. Because the height of the scraper 303 is locked, its bottom is separated from the surface of the filter plate 104, preventing secondary contamination of the filter surface during the reset process. When the cleaning carriage 3 reaches above the slope 105, the contact rod 204 fixed to the cleaning stand 2 inserts into the unlocking hole 308 of the cleaning carriage 3, pushing the locking member 305 to overcome the tension of the locking spring 307 and allowing the locking rod 306 to withdraw from the locking hole 3011. The guide rod 301 is unlocked, and gravity drives the scraper 303 down onto the inclined surface of the slope 105, ready for the next scraping operation. Each time the scraper 303 completes a forward scraping stroke, the controller in the control box 5 will open the solenoid valve on the cleaning connecting pipe 103 for about 2 seconds, and use part of the sewage to flush the upper end of the sewage pipe 102 to prevent blockage.

[0033] The pre-filtered wastewater entering the mixing tank 4 meets the treatment agent (such as a flocculant) added through the agent inlet pipe 401. The mixing motor 403 is activated, driving the drive gear 404 and the suction impeller 4041 on its shaft to rotate within the mixing pipe 4071, generating a downward suction force. The drive gear 404 simultaneously rotates the meshed driven gears 405 on either side, causing the diverter impellers 4051 on their shafts to rotate within the diverter pipe 4081. The wastewater and agent mixture is first converged by the converging body 407 (a conical structure), flows downward into the mixing pipe 4071, and is then accelerated by the suction impeller 4041 for mixing. After passing through the separator 408, the mixture is drawn upward from below by the diverter impeller 4051 and returned to the upper chamber through the diverter pipe 4081, creating a strong, turbulent circulation flow from the center downward to the edges upward. This bidirectional flow ensures thorough and rapid mixing of the agent and wastewater. The fully mixed sewage enters the sedimentation tank 6 through the connecting pipe 406.

[0034] The mixed sewage enters the sedimentation tank 6 through the connecting pipe 406 and falls on the top of the aeration plate 601. An external air pump supplies air to the air pipe 603, and the gas releases microbubbles at the bottom of the aeration plate 601 through the nozzle 604. During the rising process of the bubbles, flotation is generated, carrying the formed flocs to the upper port of the aeration plate 601. The scum layer formed by the lighter flocs overflows through the evenly distributed weir 602. At the same time, the heavier flocs settle downward under the action of gravity. The bottom of the sedimentation tank 6 is designed as a sedimentation diversion slope 605 inclined toward the side of the clean water tank 8. The settled sludge slides along this slope to the collection port 606 at the bottom of the slope. The upper clear liquid after sedimentation and flotation separation overflows into the clean water tank 8 through the clean water overflow pipe 7 located in the upper middle part of the side wall of the sedimentation tank 6 for storage and reuse.

[0035] The settled sludge enters the collection pipe 9 through the collection port 606 and is discharged. During normal sludge discharge, the gate plate 902 is controlled by the lifting screw 903 to be in the raised position to keep the collection port 606 unobstructed. When it is necessary to clean the collection pipe 9 to prevent blockage, operate the lifting screw 903 to lower the gate plate 902 to close the collection port 606. At this time, by connecting the external high-pressure water to the flushing pipe 901 connected to both ends of the collection pipe 9, the inside of the collection pipe 9 can be flushed in a one-way strong manner to ensure that the sludge discharge channel is unobstructed. The operating logic of the entire device, including the start and stop and steering of the cleaning motor 202, the timing switch of the solenoid valve of the cleaning connecting pipe 103, the operation of the mixing motor 403, etc., are all centrally coordinated and controlled by the control box 5 mounted on the support frame below the pre-filter box 1.

[0036] 1. The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention. Other structures may refer to conventional designs.

[0037] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to form new embodiments.

[0038] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. A sewage recycling device for water environment treatment, comprising: A pre-filter box (1), a cleaning stand (2), a cleaning slide (3), a mixing box (4), a control box (5), a sedimentation box (6), a clean water overflow pipe (7), a clean water tank (8) and a collecting pipe (9); the pre-filter box (1) is suspended on one side of the upper end of the sedimentation box (6) through a support frame, the lower end of the pre-filter box (1) is a mixing box (4), and the lower end of the mixing box (4) is connected to one side of the upper end of the sedimentation box (6); an aeration plate (601) is provided in the sedimentation box (6); a clean water overflow pipe (7) is externally connected to the upper middle part of the other side of the sedimentation box (6), and the other end of the clean water overflow pipe (7) is connected to the clean water tank (8); a collecting pipe (9) is provided at the bottom of the side wall of the sedimentation box (6) below the clean water overflow pipe (7) and is connected to the inner cavity; the control box (5) is hung on the support frame below the pre-filter box (1); The invention is characterized in that the bottom of one end of the pre-filter box (1) is an upward curved arc platform structure, and the other end of the bottom of the inner cavity of the pre-filter box (1) is an upward convex slope (105); the bottom plate between the slope (105) and the arc platform structure of the pre-filter box (1) is a filter plate (104), and the bottom of the filter plate (104) is the upper end of the mixing box (4) cavity; the upper end of the pre-filter box (1) is horizontally provided with a cleaning stand (2); a cleaning slide (3) is horizontally slidably installed on the cleaning stand (2), a cleaning mechanism is provided on the cleaning slide (3), and a traveling contact mechanism is provided on the cleaning stand (2). When the traveling contact mechanism drives the cleaning slide (3) to move from one end of the slope (105) to the other end, the bottom of the cleaning mechanism is always in contact with the top of the filter plate (104), and when moving in the reverse direction, the cleaning mechanism is separated from the bottom of the pre-filter box (1); a reagent mixing mechanism is provided in the mixing box (4).

2. A sewage recycling device for water environment treatment according to claim 1, characterized in that: A sewage inlet pipe (101) is provided in the middle of a side plate at one end of the pre-filter box (1). A sewage discharge pipe (102) is fixed vertically downward on the top of the arc platform structure of the pre-filter box (1). The sewage discharge pipe (102) is a structure that is wide at the top and narrow at the bottom. A cleaning connecting pipe (103) is connected to one side of the sewage inlet pipe (101). The other end of the cleaning connecting pipe (103) is connected to the upper end position of one side of the sewage discharge pipe (102). A solenoid valve is provided on the cleaning connecting pipe (103). The cleaning mechanism moves from one end of the slope (105) once, and the solenoid valve on the cleaning connecting pipe (103) opens once. The cleaning connecting pipe (103) is unblocked for at least 2 seconds. The opening and closing frequency of the solenoid valve is set by the controller in the control box (5) and is a multiple of the number of times the cleaning mechanism moves.

3. A sewage recycling device for water environment treatment according to claim 2, characterized in that: The traveling contact mechanism comprises a cleaning guide groove (201), a cleaning motor (202), a cleaning screw rod (203) and a contact rod (204), wherein the cleaning guide groove (201) is distributed on the inner side of the upper ends of the two long sides of the cleaning stand (2), and the two ends of the cleaning slide (3) are respectively slidably placed in the cleaning guide groove (201), and the cleaning screw rod (203) is installed in the middle of the cleaning stand (2) along the pre-filter box (1), and the cleaning screw rod (203) and the cleaning slide (3) are connected. The middle part of the lower end is screwed vertically; the cleaning motor (202) is fixedly mounted on the cleaning stand (2) at one end of the sewage pipe (102), and the cleaning motor (202) is used to drive the cleaning screw (203) to rotate. A touch rod (204) is vertically fixed on the cleaning stand (2) above the slope (105), and the touch rod (204) corresponds to the middle part of the cleaning slide (3), and an unlocking socket (308) is correspondingly opened through the middle part of the cleaning slide (3).

4. A sewage recycling device for water environment treatment according to claim 3, characterized in that: The cleaning mechanism comprises a guide rod (301), a locking hole (3011), a holder (302), a scraper (303), a water hole (3031), a buffer spring (304), a locking piece (305), a locking rod (306) and a locking tension spring (307). The holder (302) is located at the bottom of the cleaning slide (3). The left and right ends of the top of the holder (302) are respectively vertically fixed with a guide rod (301). The guide rod (301) slides vertically upward through the cleaning slide (3). The buffer spring (304) is mounted on the guide rod (301). The buffer spring (304) provides the holder (302) with a downward push force. The scraper (303) is fixedly mounted on the lower end of the holder (302), and the left and right ends of the scraper (303) are tangent to the inner side walls of the left and right ends of the pre-filter box (1). A water hole (3031) is provided through the upper and left sides of the middle portion of the scraper (303). The water hole (3031) is used to provide a channel for water to pass through when the scraper (303) scrapes dirt on the top of the filter plate (104). A locking member (305) is provided on the side of the cleaning slide (3) away from the touch rod (204). The left and right ends of the locking member (305) are respectively vertically provided with a locking rod (306). The locking rod (306) is vertically slidably inserted into the cleaning slide. In the frame (3), the inner end of the locking rod (306) is against the guide rod (301), and a locking tension spring (307) is provided on the locking rod (306). The two ends of the locking tension spring (307) are fixedly connected to the locking member (305) and the cleaning slide (3), respectively. A vertical waist-shaped locking hole (3011) is provided near the lower end of the guide rod (301). When the scraper (303) of the cleaning mechanism moves from one end of the slope (105) to the other end along the filter plate (104), the scraper (303) moves up to the top along the arc structure to scrape the dirt into the sewage pipe (102). At the same time, the buffer spring (304) is compressed, and the guide rod (301) is opened. The rod (301) moves upward, the end of the locking rod (306) is inserted into the lock hole (3011), the height of the locking rod (306) is fixed, the cleaning motor (202) is reset and rotated, and the cleaning slide (3) moves to above the slope (105). During this process, the lower end of the scraper (303) does not contact the filter plate (104), the touch rod (204) is inserted into the unlocking hole (308), and squeezes the locking member (305), the locking tension spring (307) is extended, the locking rod (306) is withdrawn from the lock hole (3011), the guide rod (301) moves downward, and the scraper (303) falls onto the inclined surface of the slope (105).

5. The sewage recycling device for water environment treatment according to claim 1, characterized in that: The medicine mixing mechanism comprises a medicine inlet pipe (401), a mixing and diverting bottom tank (402), a mixing motor (403), a driving gear (404), a suction impeller (4041), a driven gear (405), a diverting push wheel (4051), a connecting pipe (406), a concentrating fluid (407), a mixing pipe (4071), a separating cover (408) and a diverting pipe (4081). The mixing box (4) has a structure that is wide at the top and narrow at the bottom. The lower end of the mixing box (4) is the mixing and diverting bottom tank (402). A medicine inlet pipe (401) is vertically provided on one side of the middle part of the upper end of the mixing box (4). The inner end of the medicine inlet pipe (401) extends to the middle of the mixing box (4) and bends vertically downward toward the middle of the inner cavity of the mixing and diverting bottom tank (402). The upper end of the inner cavity of the mixing and diverting bottom tank (402) is a conical structured converging fluid (407) with a wide top and narrow bottom. The edge of the converging fluid (407) is connected to the inner cavity of the mixing and diverting bottom tank (402). The lower end of the converging fluid (407) is connected to a mixing pipe (4071). The lower end of the mixing pipe (4071) extends to the upper part of the inner cavity of the mixing and diverting bottom tank (402). A conical separation cover (408) with a narrow top and wide bottom is fixedly installed on the mixing pipe (4071). The edge of the separation cover (408) is connected to the inner cavity of the mixing and diverting bottom tank (402), and two diverting pipes (4081) are vertically symmetrically provided on the separation cover (408). A mixing motor (403) is vertically suspended at the bottom of the mixing and diverting bottom tank (402). A driving gear (404) is fixedly installed on the rotating shaft of the mixing motor (403). The rotating shaft of the driving gear (404) penetrates upward into the mixing and diverting bottom tank (402) and extends into the mixing pipe (4071) and is fixedly provided with a spiral suction impeller (4041). The suction impeller (4041) rotates along with the rotating shaft of the driving gear (404). The sewage is transported downwards, and driven gears (405) are respectively installed on the bottom of the mixing and diverting bottom tank (402) on both sides of the driving gear (404) to rotate and engage with each other. The rotating shaft of the driven gear (405) passes upward into the mixing and diverting bottom tank (402) and extends into the diverting pipe (4081) and is fixed with a spiral diverting push wheel (4051). The diverting push wheel (4051) sucks the mixed sewage below the separation cover (408) upwards. A connecting pipe (406) is provided on the side wall of the cavity between the separation cover (408) and the concentrating body (407). The connecting pipe (406) is connected to the sedimentation box (6).

6. A sewage recycling device for water environment treatment according to claim 5, characterized in that: An aeration plate (601) is fixedly installed at the upper end of the inner cavity of the sedimentation box (6). The aeration plate (601) is a rib frame structure. The upper end of the aeration plate (601) is open. The end of the connecting pipe (406) in the sedimentation box (6) is above the aeration plate (601). Weir openings (602) are evenly spaced at the edge of the upper end of the aeration plate (601). Air pipes (603) are distributed at the bottom of the aeration plate (601). Air nozzles (604) are evenly spaced on the air pipes (603). The air nozzles (604) extend to the bottom of the inner cavity of the aeration plate (601). The air pipes (603) are supplied with air through an external air pump.

7. The sewage recycling device for water environment treatment according to claim 1, characterized in that: The bottom of the inner cavity of the sedimentation box (6) is provided with a sedimentation diversion slope (605) inclined toward the clean water tank (8). A collection port (606) is provided on the side panel of the sedimentation box (6) at the bottom of the sedimentation diversion slope (605). The collection port (606) is communicated with the inner cavity of the collection pipe (9).

8. A sewage recycling device for water environment treatment according to claim 7, characterized in that: The two ends of the collecting pipe (9) are respectively provided with a flushing pipe (901). A gate plate (902) is vertically slidably provided at one end of the collecting pipe (9) close to the sedimentation box (6). The gate plate (902) is a horizontal "T"-shaped structure. The middle part of the horizontal plate of the gate plate (902) is vertically rotated and connected to a lifting screw rod (903). The lower end of the lifting screw rod (903) is connected to the top of the collecting pipe (9). The lifting screw rod (903) controls the lifting of the gate plate (902). When the collecting pipe (9) collects sediment, the gate plate (902) is at the upper end of the collecting port (606). When the collecting pipe (9) needs to be cleaned, the gate plate (902) closes the collecting port (606), and the flushing pipe (901) forms a one-way cleaning channel with the external high-pressure water.

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