A sewage reuse device for water environment treatment

Abstract

The application provides a sewage recycling device for water environment treatment, and relates to the technical field of sewage treatment equipment, which comprises a pre-filtering box, a cleaning stand, a cleaning slide, a mixing box, a control box, a sedimentation tank, a clean water horizontal overflow pipe, a clean water tank and a collecting pipe; the pre-filtering box is suspendedly installed on one side of the upper end of the sedimentation tank 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 connected with the upper end of the sedimentation tank on the opposite side; an aeration disc is arranged in the sedimentation tank. The self-cleaning system of the pre-filtering box solves the pain point that the traditional filtering device is prone to blockage. When the cleaning motor drives the cleaning lead screw to drive the cleaning slide to move horizontally along the cleaning guide groove, the scraper is tightly attached to the filter plate under the continuous pressure of the buffer spring to scrape off impurities; when the cleaning slide moves to the top of the arc table, the dirt is pushed into the blowdown pipe by the lifted scraper, and the locking rod is inserted into the lock hole of the guide rod to lock the height.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment equipment technology, and in particular to a wastewater reuse device for water environment management. Background Technology

[0002] In the current field of water environment treatment, wastewater reuse devices generally 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 to clean the filter screens, affecting the continuity of treatment; the mixing process relies heavily on mechanical stirring, which is energy-intensive and the mixing effect is unstable; the synergy between air flotation and sedimentation in the settling unit is insufficient, resulting in incomplete separation of flocs; and sludge collection pipelines are prone to clogging due to siltation, requiring manual disassembly and cleaning, increasing the burden of operation and maintenance. Existing technologies struggle to simultaneously meet the demands of automated operation, high-efficiency treatment, and low maintenance costs, thus hindering the promotion of wastewater resource utilization. Summary of the Invention

[0003] This invention relates to a wastewater reuse device for water environment treatment. It efficiently removes large particulate impurities through a pre-filtration box and its automatic cleaning mechanism. A unique chemical mixing mechanism in the mixing box ensures that the chemical reacts fully with the wastewater. The settling box, combined with the air flotation and settling effect of the aeration disc, achieves efficient solid-liquid separation. The clear water overflow pipe collects the upper layer of clear liquid and returns it to the clean water tank for reuse. The collection pipe, together with the gate and flushing pipe, enables reliable collection and cleaning of settled sludge. The entire device has a compact structure, a high degree of automation, and good treatment effect.

[0004] This invention provides a wastewater reuse device for water environment treatment, specifically comprising: a pre-filtration box, a cleaning frame, a cleaning slide, a mixing box, a control box, a settling box, a purified water overflow pipe, a purified water tank, and a collection pipe; the pre-filtration box is suspended on one side of the upper end of the settling box via a support frame, and the lower end of the pre-filtration box is the mixing box, with the lower end of the mixing box connected to one side of the upper end of the settling box; the settling box is equipped with an aeration disc; a purified water overflow pipe is connected to the upper part of the middle of the other side of the settling box, and the other end of the purified water overflow pipe is connected to the purified water tank; a collection pipe communicating with the inner cavity is provided at the bottom of the side wall of the settling box below the purified water overflow pipe; the control box is mounted on the support frame below the pre-filtration box;

[0005] One end of the pre-filtration box has an upward-curved arched structure at its bottom, while the other end of the pre-filtration box's inner cavity has an upward-convex slope. The bottom plate between the slope and the arched structure of the pre-filtration box is a filter plate, and the bottom of the filter plate is the upper end of the mixing chamber. A cleaning frame is horizontally mounted on the upper end of the pre-filtration box. A cleaning slide is horizontally slidably mounted on the cleaning frame, and a cleaning mechanism is mounted on the cleaning slide. A traveling contact mechanism is mounted on the cleaning frame. During the movement of the traveling contact mechanism from one end of the slope to the other, 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 separates from the bottom of the pre-filtration box. A reagent mixing mechanism is provided in the mixing chamber.

[0006] Optionally, a sewage inlet pipe is provided in the middle of one side plate of the pre-filter box, and a sewage discharge pipe is fixed vertically downward on the top of the arc-shaped structure of the pre-filter box. The sewage discharge pipe has a structure that is wider at the top and narrower 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 of the sewage discharge pipe. A solenoid valve is provided on the cleaning connecting pipe. When the cleaning mechanism moves from one end of the slope once, 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 and is a multiple of the number of times the cleaning mechanism moves.

[0007] Optionally, the traveling contact mechanism includes a cleaning guide groove, a cleaning motor, a cleaning screw, and a contact rod. The cleaning guide groove is distributed on the inner side of the upper end of the two long sides of the cleaning frame. The two ends of the cleaning slide are slidably placed in the cleaning guide groove. The cleaning screw is rotatably installed in the middle of the cleaning frame along the pre-filter box. The cleaning screw is vertically and rotatably screwed to the middle of the lower end of the cleaning slide. The cleaning motor is fixedly installed on the cleaning frame at one end of the sewage pipe. The cleaning motor is used to drive the cleaning screw to rotate. A contact rod is vertically fixed on the cleaning frame above the slope. The contact rod corresponds to the middle of the cleaning slide. An unlocking hole is correspondingly opened through the middle of the cleaning slide.

[0008] Optionally, the cleaning mechanism includes a guide rod, a locking hole, a retaining seat, a scraper, a water passage hole, a buffer spring, a locking element, a locking rod, and a locking tension spring. The retaining seat is located at the bottom of the cleaning slide. Guide rods are vertically fixed at the left and right ends of the top of the retaining seat. The guide rods slide vertically upward through the cleaning slide. A buffer spring is fitted on the guide rod, providing a constant downward thrust to the retaining seat. A scraper is fixedly installed at the lower end of the retaining seat. The left and right ends of the scraper are tangent to the inner sidewalls of the left and right ends of the pre-filter box, respectively. A water passage hole is formed through the upper left and right sides of the middle of the scraper. The water passage hole provides a channel for water to pass through during the scraping of dirt from the top of the filter plate. A locking element is provided on the side of the cleaning slide away from the contact rod. Locking rods are vertically installed at the left and right ends of the locking element. The locking rods slide vertically into the retaining seat. In the cleaning carriage, the inner end of the locking rod abuts against the guide rod. The locking rod is equipped with a locking spring, and the two ends of the locking spring are respectively fixedly connected to the locking component and the cleaning carriage. A vertical oval-shaped locking hole is opened near the lower end of the guide rod. When the scraper of the cleaning mechanism moves along the filter plate from one end of the slope to the other, the scraper moves up along the arc structure to the top to scrape the dirt into the drain pipe. At the same time, the buffer spring is compressed, the guide rod moves up, and the end of the locking rod is inserted into the locking hole. The height of the locking rod is fixed. The cleaning motor resets and rotates, and the cleaning carriage moves to the top of the slope. During this process, the lower end of the scraper does not contact the filter plate. The contact rod is inserted into the unlocking hole and squeezes the locking component. The locking spring extends, the locking rod is withdrawn from the locking hole, the guide rod moves down, and the scraper falls onto the inclined surface of the slope.

[0009] Optionally, the reagent mixing mechanism includes a reagent inlet pipe, a mixing and diversion bottom tank, a mixing motor, a drive gear, a suction impeller, a driven gear, a diversion pusher, a connecting pipe, a cohesive agent, a mixing pipe, a separator, and a diversion pipe. The mixing box has a structure that is wider at the top and narrower at the bottom. The lower end of the mixing box is the mixing and diversion bottom tank. A reagent inlet pipe is vertically installed on one side of the middle of the upper end of the mixing box. The inner end of the reagent 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 diversion bottom tank. The upper end of the inner cavity of the mixing and diversion bottom tank is a cohesive agent with a tapered structure that is wider at the top and narrower at the bottom. The edge of the cohesive agent is connected to the inner cavity of the mixing and diversion bottom tank. The lower end of the cohesive agent is connected to the mixing pipe. The lower end of the mixing pipe extends to the top of the bottom of the inner cavity of the mixing and diversion bottom tank. A tapered separator that is narrower at the top and wider at the bottom is fixedly installed on the mixing pipe. The edge of the partition cover connects to the inner cavity of the mixing and diversion bottom tank. Two diversion pipes are symmetrically arranged vertically on the partition cover. A mixing motor is vertically suspended at the bottom of the mixing and diversion bottom tank. A drive gear is fixedly installed on the shaft of the mixing motor. The shaft of the drive gear passes upward into the mixing and diversion bottom tank and extends into the mixing pipe, where a spiral suction impeller is fixed. The suction impeller rotates with the shaft of the drive gear and conveys sewage downward. On the bottom of the mixing and diversion bottom tank on both sides of the drive gear, meshing driven gears are respectively installed. The shaft of the driven gear passes upward into the mixing and diversion bottom tank and extends into the diversion pipe, where a spiral diversion pusher is fixed. The diversion pusher draws the mixed sewage below the partition cover upward. A connecting pipe is provided on the side wall of the cavity between the partition cover and the coagulating fluid. The connecting pipe is connected to the settling tank.

[0010] Optionally, an aeration disc is fixedly installed at the upper end of the inner cavity of the settling tank. The aeration disc has a frame structure and an opening at the upper end. The end of the connecting pipe inside the settling tank is above the aeration disc. Weir openings are evenly spaced at the upper port edge of the aeration disc. Air pipes are distributed at the bottom of the aeration disc. Air jets are evenly spaced on the air pipes. The air jets extend to the bottom of the inner cavity of the aeration disc. Air is supplied through an external air pump.

[0011] Optionally, the bottom of the settling tank cavity is provided with a settling guide slope inclined towards the clean water tank side, and a collection port is opened on the side plate of the settling tank at the bottom of the settling guide slope, and the collection port is connected to the inner cavity of the collection pipe.

[0012] Optionally, flushing pipes are provided at both ends of the collection pipe. A gate is vertically slidably provided at one end of the collection pipe near the settling tank. The gate is a horizontal "T"-shaped structure. A lifting screw is vertically rotatably connected to the middle of the horizontal plate of the gate. The lower end of the lifting screw is connected to the top of the collection pipe. The lifting screw controls the raising and lowering of the gate. When the collection pipe is collecting sediment, the gate is at the upper end of the collection port. When the collection pipe needs to be cleaned, the gate closes the collection port, and the flushing pipe forms a one-way cleaning channel with the external high-pressure water.

[0013] This invention provides a wastewater reuse device for water environment treatment, which has the following beneficial effects:

[0014] The self-cleaning system of the pre-filter box in this invention solves the problem of easy clogging in traditional filtration devices. When the cleaning motor drives the cleaning screw, which in turn moves the cleaning slide horizontally along the cleaning guide groove, the scraper, under the continuous pressure of the buffer spring, scrapes impurities off the filter plate. When it moves to the top of the arc platform, the dirt is pushed into the drain pipe by the raised scraper, and simultaneously, the locking rod is inserted into the locking hole of the guide rod to lock the height. During the reset process, the scraper is suspended to avoid secondary contamination of the filter surface. After the contact rod is inserted into the unlocking hole to release the lock, the scraper automatically falls back to the inclined surface. Combined with the timed flushing (at least 2 seconds each time) triggered by the cleaning connecting pipe according to the scraping frequency, clogging of the drain pipe is completely prevented, ensuring continuous filtration and reducing maintenance frequency.

[0015] The turbulence enhancement mechanism of the mixing tank achieves efficient mixing of chemicals and wastewater. The mixing motor synchronously drives the drive gear and the meshing driven gear, causing the suction impeller to draw wastewater downwards within the mixing pipe, while the diversion pusher pushes the mixture upwards within the diversion pipe. After being converged by the cohesive flow system, the wastewater forms a strong turbulent flow—"center downward, edge upward"—within the circulation channels separated by the partition hood. This allows the chemicals introduced into the inlet pipe to diffuse rapidly, improving mixing efficiency and reducing energy consumption.

[0016] The settling tank's collaborative separation and intelligent sludge discharge system optimizes the solid-liquid separation process. Microbubbles are released from jet nozzles at the bottom of the aeration disc, allowing light flocs to overflow from the weir via air flotation, while heavier flocs slide down the settling guide slope into the collection port. The upper clear liquid overflows through the clean water overflow pipe to the clean water tank for reuse. The collection pipe is controlled by a gate valve and a lifting screw: the gate valve rises during normal sludge discharge, and the collection port closes when blocked, with high-pressure water injected through flushing pipes at both ends for one-way flushing, improving sludge discharge efficiency and reducing maintenance time.

[0017] The integrated layout and control system further enhances the advantages of the device. The control box centrally regulates the rotation direction of the cleaning motor, the speed of the mixing motor, and the solenoid valves of the cleaning connecting pipe (triggered according to multiples of the scraping cycles), achieving fully automated operation. The three-dimensional structure, with the pre-filter box suspended above the settling tank and the mixing tank centrally connected, saves space compared to a planar layout. This device overcomes industry challenges such as filter clogging, uneven mixing, and sludge accumulation through mechanical innovation, improving treatment efficiency by over 90%, and providing efficient and low-consumption technical support for wastewater resource recovery. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0019] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0020] In the attached diagram:

[0021] Figure 1A schematic diagram of the first axial view structure of the present invention is shown;

[0022] Figure 2 A schematic diagram of the second axial view structure of the present invention is shown;

[0023] Figure 3 A schematic diagram of the third axial view structure of the present invention is shown;

[0024] Figure 4 A schematic axial view of the pre-filter box and mixing box of the present invention is shown;

[0025] Figure 5 This diagram shows an axial view of the pre-filter and mixing chamber side panels in a separated state according to the present invention.

[0026] Figure 6 A schematic diagram of the axial view of the clearing carriage portion of the present invention is shown;

[0027] Figure 7 This diagram shows an axial view of the disassembled carriage section of the present invention.

[0028] Figure 8 A schematic diagram of the axial view of the mixing tank section of the present invention in a partially separated state is shown.

[0029] Figure 9 This diagram shows a further split-off axial view of the mixing tank portion of the present invention.

[0030] Figure 10 This diagram shows an axial view of the settling tank side plates in a separated state according to the present invention.

[0031] Figure 11 A schematic diagram of the collection tube of the present invention is shown.

[0032] List of reference numerals in the attached diagram:

[0033] 1. Pre-filtration box; 101. Sewage inlet pipe; 102. Sewage outlet pipe; 103. Cleaning connection pipe; 104. Filter plate; 105. Slope;

[0034] 2. Remove the upright; 201. Remove the guide groove; 202. Remove the motor; 203. Remove the lead screw; 204. Remove the contact rod;

[0035] 3. Remove the carriage; 301. Guide rod; 3011. Locking hole; 302. Card holder; 303. Scraper; 3031. Water passage hole; 304. Buffer spring; 305. Locking component; 306. Locking rod; 307. Locking tension spring; 308. Unlocking hole;

[0036] 4. Mixing box; 401. Reagent inlet pipe; 402. Mixing and diversion bottom tank; 403. Mixing motor; 404. Drive gear; 4041. Suction impeller; 405. Driven gear; 4051. Diversion pusher; 406. Connecting pipe; 407. Concentrator; 4071. Mixing pipe; 408. Separator cover; 4081. Diversion pipe;

[0037] 5. Control box;

[0038] 6. Settling box; 601. Aeration disc; 602. Weir; 603. Air pipe; 604. Jet nozzle; 605. Settling guide slope; 606. Collection port;

[0039] 7. Horizontal overflow pipe for purified water;

[0040] 8. Clean water tank;

[0041] 9. Collection pipe; 901. Flushing pipe; 902. Gate; 903. Lifting screw. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please refer to Figures 1 to 11 :

[0044] Example 1:

[0045] This invention proposes a wastewater reuse device for water environment treatment, comprising: a pre-filtration box 1, a cleaning frame 2, a cleaning slide 3, a mixing box 4, a control box 5, a settling box 6, a clean water overflow pipe 7, a clean water tank 8, and a collection pipe 9; the pre-filtration box 1 is suspended on one side of the upper end of the settling box 6 by a support frame, and the lower end of the pre-filtration box 1 is the mixing box 4, the lower end of the mixing box 4 being connected to one side of the upper end of the settling box 6; an aeration disc 601 is provided in the settling box 6; a clean water overflow pipe 7 is connected to the upper part of the middle of the other side of the settling box 6, and the other end of the clean water overflow pipe 7 is connected to the clean water tank 8; a collection pipe 9 communicating with the inner cavity is provided at the bottom of the side wall of the settling box 6 below the clean water overflow pipe 7; the control box 5 is hung on the support frame below the pre-filtration box 1;

[0046] One end of the pre-filter box 1 has an upward-curved arc-shaped bottom structure, and the other end of the bottom of the pre-filter box 1 has an upward-convex slope 105. The bottom plate between the slope 105 and the arc-shaped 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. A cleaning stand 2 is horizontally provided at the upper end of the pre-filter box 1. A cleaning slide 3 is horizontally slidably installed on the cleaning stand 2. A cleaning mechanism is provided on the cleaning slide 3. 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 separates from the bottom of the pre-filter box 1. A reagent mixing mechanism is provided in the mixing box 4.

[0047] Among them, a sewage inlet pipe 101 is provided in the middle of one side plate of the pre-filter box 1. A sewage discharge pipe 102 is fixed vertically downward on the top of the arc-shaped structure of the pre-filter box 1. The sewage discharge pipe 102 has a structure that is wider at the top and narrower 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 of one side of the sewage discharge pipe 102. A solenoid valve is provided on the cleaning connecting pipe 103. When the cleaning mechanism moves from one end of the ramp 105 once, the solenoid valve on the cleaning connecting pipe 103 opens once. 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 and is a multiple of the number of times the cleaning mechanism moves.

[0048] The traveling contact mechanism includes a cleaning guide groove 201, a cleaning motor 202, a cleaning screw 203, and a contact rod 204. The cleaning guide groove 201 is distributed on the inner side of the upper end of the two long sides of the cleaning frame 2. The two ends of the cleaning slide 3 are slidably placed in the cleaning guide groove 201. The cleaning screw 203 is rotatably installed in the middle of the cleaning frame 2 along the pre-filter box 1. The cleaning screw 203 is vertically and rotatably screwed to the middle of the lower end of the cleaning slide 3. The cleaning motor 202 is fixedly installed on the cleaning frame 2 at one end of the sewage pipe 102. The cleaning motor 202 is used to drive the cleaning screw 203 to rotate. The contact rod 204 is vertically fixed on the cleaning frame 2 above the slope 105. The contact rod 204 corresponds to the middle of the cleaning slide 3. The middle of the cleaning slide 3 is correspondingly provided with an unlocking hole 308.

[0049] The cleaning mechanism includes a guide rod 301, a locking hole 3011, a mounting base 302, a scraper 303, a water passage hole 3031, a buffer spring 304, a locking element 305, a locking rod 306, and a locking tension spring 307. The mounting base 302 is located at the bottom of the cleaning slide 3. The guide rod 301 is vertically fixed at both ends of the top of the mounting base 302. The guide rod 301 slides vertically upward through the cleaning slide 3. The buffer spring 304 is mounted on the guide rod 301, and the buffer spring 304 provides a constant downward thrust to the mounting base 302. A scraper 303 is fixedly installed at the lower end of 302. The left and right ends of the scraper 303 are tangent to the inner sidewalls of the left and right ends of the pre-filter box 1, respectively. A water passage hole 3031 is opened through the upper left and right sides of the middle of the scraper 303. The water passage hole 3031 is used to provide a channel for water to pass through during the scraping of dirt from the top of the filter plate 104 by the scraper 303. A locking member 305 is provided on the side of the cleaning slide away from the contact rod 204. The left and right ends of the locking member 305 are respectively provided with locking rods 306 vertically. The locking rods 306 are vertically slidably inserted into the cleaning slide. In frame 3, the inner end of the locking rod 306 abuts against the guide rod 301. The locking rod 306 is provided with a locking spring 307. The two ends of the locking spring 307 are fixedly connected to the locking member 305 and the cleaning slide 3, respectively. A vertical oval-shaped locking hole 3011 is opened near the lower end of the guide rod 301. When the scraper 303 of the cleaning mechanism moves along the filter plate 104 from one end of the slope 105 to the other end, the scraper 303 moves up along the arc structure to the top to scrape the dirt into the drain pipe 102. At the same time, the buffer spring 304 is compressed. The guide rod 301 moves upward, and 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 resets and rotates. The cleaning carriage 3 moves to the top of the ramp 105. During this process, the lower end of the scraper 303 does not contact the filter plate 104. The contact rod 204 is inserted into the unlocking hole 308 and presses the locking member 305. The locking spring 307 extends, 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 ramp 105.

[0050] The reagent mixing mechanism includes a reagent inlet pipe 401, a mixing and diversion bottom tank 402, a mixing motor 403, a drive gear 404, a suction impeller 4041, a driven gear 405, a diversion pusher 4051, a connecting pipe 406, a cohesive fluid 407, a mixing pipe 4071, a partition hood 408, and a diversion pipe 4081. The mixing box 4 has a structure that is wider at the top and narrower at the bottom. The lower end of the mixing box 4 is the mixing and diversion bottom tank 402, and the upper middle part of the mixing box 4 is vertically provided with a reagent inlet pipe 401. The inner end of component 1 extends vertically downwards to the middle of the mixing tank 4, facing 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 structure of a polymer 407 that is wider at the top and narrower at the bottom. The edge of the polymer 407 is connected to the inner cavity of the mixing and diverting bottom tank 402. The lower end of the polymer 407 is connected to a mixing pipe 4071. The lower end of the mixing pipe 4071 extends to the bottom of the inner cavity of the mixing and diverting bottom tank 402. A conical partition cover 408 that is narrower at the top and wider at the bottom is fixedly installed on the mixing pipe 4071 to separate the components. The edge of the cover 408 is connected to the inner cavity of the mixing and diversion tank 402. Two diversion pipes 4081 are symmetrically arranged vertically on the cover 408. A mixing motor 403 is vertically suspended at the bottom of the mixing and diversion tank 402. A drive gear 404 is fixedly installed on the shaft of the mixing motor 403. The shaft of the drive gear 404 extends upwards into the mixing and diversion tank 402 and into the mixing pipe 4071, where a spiral suction impeller 4041 is fixedly installed. The suction impeller 4041 rotates with the shaft of the drive gear 404. The wastewater is conveyed downwards. The bottom of the mixing and diversion tank 402 on both sides of the drive gear 404 is respectively rotatably installed with driven gears 405. The rotation axis of the driven gear 405 passes upwards into the mixing and diversion tank 402 and extends into the diversion pipe 4081. A spiral diversion pusher 4051 is fixed thereon. The diversion pusher 4051 draws the mixed wastewater below the partition cover 408 upwards. A connecting pipe 406 is provided on the side wall of the cavity between the partition cover 408 and the coagulating fluid 407. The connecting pipe 406 is connected to the settling tank 6.

[0051] The settling tank 6 has an aeration disc 601 fixedly installed at the upper end of its inner cavity. The aeration disc 601 has a frame structure and an opening at its upper end. The end of the connecting pipe 406 inside the settling tank 6 is above the aeration disc 601. Weir openings 602 are evenly spaced at the upper edge of the aeration disc 601. Air pipes 603 are distributed at the bottom of the aeration disc 601. Air jets 604 are evenly spaced on the air pipes 603. The air jets 604 extend to the bottom of the inner cavity of the aeration disc 601. Air is supplied to the air pipes 603 by an external air pump.

[0052] The sedimentation tank 6 has a sedimentation guide slope 605 at the bottom of its inner cavity, which is inclined toward the clean water tank 8. A collection port 606 is opened on the side plate of the sedimentation tank 6 at the bottom of the sedimentation guide slope 605, and the collection port 606 is connected to the inner cavity of the collection pipe 9.

[0053] Example 2

[0054] Based on Embodiment 1, flushing pipes 901 are provided at both ends of the collection pipe 9. A gate 902 is vertically slidably provided at one end of the collection pipe 9 near the settling tank 6. The gate 902 is a horizontally placed "T"-shaped structure. A lifting screw 903 is vertically rotatably connected to the middle of the horizontal plate of the gate 902. The lower end of the lifting screw 903 is connected to the top of the collection pipe 9. The lifting screw 903 controls the raising and lowering of the gate 902. When the collection pipe 9 is collecting sediment, the gate 902 is located at the upper end of the collection port 606. When the collection pipe 9 needs to be cleaned, the gate 902 closes the collection port 606, and the flushing pipe 901 forms a one-way cleaning channel with the external high-pressure water.

[0055] The following provides further explanation and description of the functions and effects of each structure mentioned above, to help those skilled in the art better understand the technical solution:

[0056] The device begins at the pre-filter box 1, which is suspended above the settling box 6 via a support frame. Its unique bottom structure (an arc-shaped platform at one end and a slope 105 at the other end) and the filter plate 104 in the middle constitute the primary physical filtration unit. Wastewater first enters the pre-filter box 1 through the wastewater inlet pipe 101, where larger particles are trapped by the filter plate 104. The cleaning stand 2 installed on the upper part of the pre-filter box 1 and the cleaning slide 3 sliding on it, together with the cleaning mechanism (including guide rod 301, card seat 302, scraper 303, water passage hole 3031, buffer spring 304, locking element 305, locking rod 306, locking tension spring 307) and the traveling contact mechanism (including cleaning guide groove 201, cleaning motor 202, cleaning screw 203, contact rod 204), realizes the automated cleaning of the surface of the filter plate 104. When the cleaning carriage 3 is driven by the cleaning motor 202 to rotate the cleaning screw 203, causing the cleaning mechanism to move from the slope end 105 to the arc end, the scraper 303, under the action of the buffer spring 304, closely adheres to the surface of the filter plate 104 to scrape away dirt. Upon reaching the top of the arc, the scraper 303 is lifted, and the dirt is scraped into the drain pipe 102, which is wider at the top and narrower at the bottom, for discharge. During this process, the water passage 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 scraper 303 remains suspended due to the height lock, preventing secondary contamination of the filter surface. When the cleaning carriage 3 returns to the top of the ramp 105, the fixing contact rod 204 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, causing the locking rod 306 to exit the locking hole 3011. Under the action of gravity, the guide rod 301 drives the scraper 303 to fall and reset to the ramp 105, ready for the next round of work. Each time the scraper 303 completes one 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 drain pipe 102 for about 2 seconds to prevent blockage. The pre-filtered sewage falls through the filter plate 104 into the mixing tank 4 below it.

[0057] The mixing tank 4 receives pre-filtered wastewater and has a chemical inlet pipe 401 at its top for adding treatment chemicals (such as flocculants). The tank is designed to be wider at the top and narrower at the bottom, with a mixing and diversion tank 402 connected to the bottom. The core of the tank is the chemical mixing mechanism, driven by a mixing motor 403. The mixing motor 403 is installed at the bottom of the tank, and its shaft drives the drive gear 404 and the suction impeller 4041, which extends into the mixing pipe 4071 inside the tank, to rotate. The drive gear 404 simultaneously meshes with the driven gears 405 on both sides, and its shaft drives the diversion pusher 4051, which extends into the diversion pipe 4081, to rotate. Wastewater and chemicals first enter the mixing tank 4, flowing towards the coagulating fluid 407 (a cone-shaped structure that is wider at the top and narrower at the bottom) inside the tank, and then converge into the mixing pipe 4071. The suction impeller 4041 rotates inside the mixing pipe 4071, generating a downward suction force to accelerate mixing. After the mixed liquid flows downward through the separator 408 (a conical structure that is wider at the bottom and narrower at the top), it is drawn upward through the diversion pipe 4081 by the diversion impeller 4051, forming a strong circulating flow from the center of the tank downwards and then upwards along the edge of the tank. A connecting pipe 406 is provided on the side wall of the cavity between the separator 408 and the coagulating agent 407 to transport the fully mixed wastewater to the settling tank 6. This multi-stage, bidirectional turbulent flow design ensures rapid and thorough mixing of the reagent and the wastewater.

[0058] The settling tank 6 is a key unit for solid-liquid separation. Mixed wastewater from the mixing tank 4, connected by pipe 406, first enters the upper part of the tank, above the aeration disc 601. The aeration disc 601 is designed with a frame structure, with air pipes 603 and jet nozzles 604 at its bottom, generating microbubbles supplied by an external air pump. The rising bubbles create flotation, carrying flocs to the upper end of the aeration disc 601, where they overflow through evenly spaced weirs 602, forming a scum layer. Simultaneously, heavier flocs sink. The bottom of the settling tank 6 is designed with a settling guide slope 605, tilting towards the clean water tank 8. The settled sludge slides down this slope to the collection port 606 at the bottom. A clean water overflow pipe 7 connects to the upper side wall of the middle of the tank, through which the supernatant after settling and flotation overflows into the clean water tank 8 for storage and reuse. Outside the collection port 606 at the bottom of the settling guide slope 605, a collection pipe 9 is connected for collecting and discharging settled sludge. The collection pipe 9 has flushing pipes 901 at both ends, and a gate 902 ("T" shaped structure) is installed at the end near the settling tank 6. A lifting screw 903 controls the raising and lowering of the gate 902. During normal collection, the gate 902 rises, and sludge enters the collection pipe 9 from the collection port 606 and is discharged. When cleaning the collection pipe 9 is required, the gate 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, preventing blockage and ensuring smooth sludge discharge. The control box 5, which controls the operation of the entire device, is mounted on a support frame below the pre-filter box 1 for easy operation and maintenance.

[0059] Working principle:

[0060] Wastewater first enters the pre-filtration tank 1 through the wastewater inlet pipe 101. Inside the pre-filtration tank 1, the wastewater flows through the filter plate 104 for primary physical filtration, trapping larger particulate impurities. The filtered wastewater passes through the filter plate 104 and falls into the mixing tank 4 below. At the same time, the automated cleaning system inside the pre-filtration tank 1 starts working: the cleaning motor 202 drives the cleaning screw 203 to rotate, causing the cleaning slide 3 to move horizontally from one end of the slope 105 to the end of the arc-shaped structure along the cleaning guide groove 201 on the cleaning stand 2. The scraper 303, fixed to the bottom of the holder 302, scrapes away the accumulated dirt against the surface of the filter plate 104 under the continuous downward pushing force of the buffer spring 304. The water passage hole 3031 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-shaped structure, it is lifted by the arc-shaped structure, pushing the scraped dirt into the drain pipe 102, which is wider at the top and narrower at the bottom, for discharge. During this lifting process, the guide rod 301 moves upward, and 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 position of the scraper 303. Then, the cleaning motor 202 reverses, driving the cleaning carriage 3 to move back to the ramp 105 end for reset. Since the height of the scraper 303 is locked, its bottom separates from the surface of the filter plate 104, preventing secondary contamination of the filter surface during reset. When the cleaning carriage 3 moves above the ramp 105 end, the contact rod 204 fixed on 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, causing the locking rod 306 to exit from the locking hole 3011. The guide rod 301 is unlocked, and under the action of gravity, it causes the scraper 303 to fall onto the slope of the ramp 105, preparing 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, using some sewage to flush the upper end of the drain pipe 102 to prevent blockage.

[0061] The pre-filtered wastewater falling into the mixing tank 4 encounters the treatment agent (such as flocculant) added through the agent inlet pipe 401. The mixing motor 403 starts, driving the drive gear 404 and the suction impeller 4041 on its shaft to rotate inside the mixing pipe 4071, generating a downward suction force. The drive gear 404 simultaneously drives the driven gears 405 meshing with it on both sides to rotate, and the diverting pusher 4051 on its shaft rotates inside the diverting pipe 4081. The mixture of wastewater and agent is first gathered by the coagulating fluid 407 (conical structure), enters the mixing pipe 4071 and flows downward, and is accelerated by the suction impeller 4041. After passing through the partition shroud 408, the mixture is drawn upward from below the partition shroud 408 by the diverting pusher 4051, and returns to the upper space through the diverting pipe 4081, forming a strong circulating turbulent flow from the center downward and the edges upward. This bidirectional flow ensures that the agent and wastewater are fully and quickly mixed. The thoroughly mixed wastewater enters the settling tank 6 through the connecting pipe 406.

[0062] The mixed wastewater enters the settling tank 6 through the connecting pipe 406 and falls above the aeration disc 601. An external air pump supplies air to the air pipe 603, and the gas is released as microbubbles at the bottom of the aeration disc 601 through the jet nozzle 604. As the bubbles rise, they generate air flotation, carrying the formed flocs to the upper port of the aeration disc 601. The scum layer formed by the lighter flocs overflows through the evenly distributed weirs 602. At the same time, the heavier flocs settle downwards under the influence of gravity. The bottom of the settling tank 6 is designed with a settling guide slope 605 that slopes towards the clean water tank 8, and the settled sludge slides along this slope to the collection port 606 at the bottom of the slope. The supernatant after settling and air 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 settling tank 6 for storage and reuse.

[0063] Settled sludge enters the collection pipe 9 through the collection port 606 and is discharged. During normal sludge discharge, the gate 902 is controlled by the lifting screw 903 to be in the raised position, keeping the collection port 606 unobstructed. When it is necessary to clean the collection pipe 9 to prevent blockage, the lifting screw 903 is operated to lower the gate 902, closing the collection port 606. At this time, external high-pressure water can be connected through the flushing pipes 901 connected to both ends of the collection pipe 9 to perform unidirectional powerful flushing of the inside of the collection pipe 9, ensuring that the sludge discharge channel is unobstructed. The operating logic of the entire device, including the start, stop and rotation of the cleaning motor 202, the timed switching of the solenoid valve of the cleaning connecting pipe 103, and the operation of the mixing motor 403, is centrally coordinated and controlled by the control box 5 mounted on the support frame below the pre-filter box 1.

[0064] 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0065] 2. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0066] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A wastewater reuse device for water environment treatment, comprising: The pre-filter box (1), the cleaning stand (2), the cleaning slide (3), the mixing box (4), the control box (5), the settling box (6), the clean water overflow pipe (7), the clean water tank (8), and the collection pipe (9) are all provided. The pre-filter box (1) is suspended on one side of the upper end of the settling box (6) by the 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 settling box (6). The settling box (6) is provided with an aeration disc (601). The other side of the settling box (6) is connected to the upper part of the middle of the middle part of the settling box (6). The other end of the clean water overflow pipe (7) is connected to the clean water tank (8). The bottom of the side wall of the settling box (6) below the clean water overflow pipe (7) is provided with a collection pipe (9) that communicates with the inner cavity. The control box (5) is hung on the support frame below the pre-filter box (1). The pre-filter box (1) is characterized in that one end of the bottom is an upwardly curved arc-shaped structure, and the other end of the bottom of the pre-filter box (1) is an upwardly convex ramp (105); the bottom plate between the ramp (105) and the arc-shaped 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 cavity of the mixing box (4); a cleaning stand (2) is horizontally provided at the upper end of the pre-filter box (1); 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), the traveling contact mechanism driving the cleaning slide (3) from the ramp (105) 105) During the movement from one end to the other, 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 separates from the bottom of the pre-filter box (1). The mixing box (4) is equipped with a reagent mixing mechanism. A sewage inlet pipe (101) is provided in the middle of one side plate of the pre-filter box (1). A sewage discharge pipe (102) is fixed vertically downward on the top of the arc-shaped structure of the pre-filter box (1). The sewage discharge pipe (102) has a structure that is wider at the top and narrower 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 one side of the sewage discharge pipe (102). At the upper end, a solenoid valve is provided on the cleaning connecting pipe (103). When the cleaning mechanism moves from one end of the ramp (105) once, 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) and is a multiple of the number of times the cleaning mechanism moves. The moving contact mechanism includes a cleaning guide groove (201), a cleaning motor (202), a cleaning screw (203), and a contact rod (204). The cleaning guide groove (201) is distributed on the inner side of the upper end of the two long sides of the cleaning stand (2). The two ends of the cleaning slide (3) are respectively slidably placed on the cleaning guide groove. In the guide groove (201), the cleaning screw (203) is rotatably installed in the middle of the cleaning stand (2) along the pre-filter box (1). The cleaning screw (203) is vertically screwed to the middle of the lower end of the cleaning slide (3). The cleaning motor (202) is fixedly installed on the cleaning stand (2) at one end of the sewage pipe (102). The cleaning motor (202) is used to drive the cleaning screw (203) to rotate. A contact rod (204) is vertically fixed on the cleaning stand (2) above the slope (105). The contact rod (204) corresponds to the middle of the cleaning slide (3). The middle of the cleaning slide (3) is correspondingly provided with an unlocking hole (308).

2. The wastewater reuse device for water environment treatment according to claim 1, characterized in that, The cleaning mechanism includes a guide rod (301), a locking hole (3011), a card holder (302), a scraper (303), a water passage hole (3031), a buffer spring (304), a locking element (305), a locking rod (306), and a locking tension spring (307). The card holder (302) is located at the bottom of the cleaning slide (3). The guide rod (301) is vertically fixed at the left and right ends of the top of the card holder (302). The guide rod (301) slides vertically upward through the cleaning slide (3). The buffer spring (304) is fitted on the guide rod (301). The buffer spring (304) provides the card holder (302) with a constant downward push. The scraper (303) is fixedly installed at the lower end of the card holder (302). The left and right ends of the scraper (303) are tangent to the inner sidewalls of the left and right ends of the pre-filter box (1). A water passage hole (3031) is opened through the middle of the scraper (303) on the left and right sides. The water passage hole (3031) is used to provide a channel for water to pass through during the scraping of dirt on the top of the filter plate (104) by the scraper (303). A locking member (305) is provided on the side of the cleaning slide (3) away from the contact rod (204). The left and right ends of the locking member (305) are respectively provided with locking rods (306) vertically. The locking rods (306) are vertically slidably inserted into the cleaning slide. In the frame (3), the inner end of the locking rod (306) abuts against the guide rod (301). The locking rod (306) is provided with a locking spring (307). The two ends of the locking spring (307) are fixedly connected to the locking piece (305) and the cleaning slide (3) respectively. A vertical oval-shaped locking 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 drain pipe (102). At the same time, the buffer spring (304) is compressed, and the guide... 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) resets and rotates, the cleaning carriage (3) moves to the top of the ramp (105), during this process the lower end of the scraper (303) does not contact the filter plate (104), the contact rod (204) is inserted into the unlocking hole (308) and squeezes the locking piece (305), the locking spring (307) extends, the locking rod (306) is withdrawn from the lock hole (3011), the guide rod (301) moves downward, and the scraper (303) falls onto the slope of the ramp (105).

3. A wastewater reuse device for water environment treatment according to claim 1, characterized in that, The drug mixing mechanism includes a drug inlet pipe (401), a mixing and diversion bottom tank (402), a mixing motor (403), a drive gear (404), a suction impeller (4041), a driven gear (405), a diversion pusher (4051), a connecting pipe (406), a cohesive fluid (407), a mixing pipe (4071), a partition cover (408), and a diversion pipe (4081). The mixing box (4) has a structure that is wider at the top and narrower at the bottom. The lower end of the mixing box (4) is the mixing and diversion bottom tank (402), and the drug inlet pipe (401) is vertically arranged on one side of the middle of the upper end of the mixing box (4). The inner end of the reagent inlet pipe (401) extends to the middle of the mixing tank (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 structure of a polymer (407) that is wider at the top and narrower at the bottom. The edge of the polymer (407) is connected to the inner cavity of the mixing and diverting bottom tank (402). The lower end of the polymer (407) is connected to a mixing pipe (4071). The lower end of the mixing pipe (4071) extends to the bottom of the inner cavity of the mixing and diverting bottom tank (402). A conical partition cover (408) that is narrower at the top and wider at the bottom is fixedly installed on the mixing pipe (4071). The edge of the partition cover (408) is connected to the inner cavity of the mixing and diversion bottom tank (402). Two diversion pipes (4081) are symmetrically arranged vertically on the partition cover (408). A mixing motor (403) is vertically suspended at the bottom of the mixing and diversion bottom tank (402). A drive gear (404) is fixedly installed on the shaft of the mixing motor (403). The shaft of the drive gear (404) passes upward into the mixing and diversion bottom tank (402) and extends into the mixing pipe (4071), where a spiral suction impeller (4041) is fixedly installed. The suction impeller (4041) rotates with the shaft of the drive gear (404). Sewage is conveyed downwards. Driven gears (405) are installed on the bottom of the mixing and diversion tanks (402) on both sides of the drive gear (404). The shaft of the driven gear (405) passes upwards into the mixing and diversion tank (402) and extends into the diversion pipe (4081). A spiral diversion pusher (4051) is fixed thereon. The diversion pusher (4051) draws the mixed sewage below the partition cover (408) upwards. A connecting pipe (406) is provided on the side wall of the cavity between the partition cover (408) and the coagulating fluid (407). The connecting pipe (406) is connected to the settling tank (6).

4. A wastewater reuse device for water environment treatment according to claim 3, characterized in that, An aeration disc (601) is fixedly installed at the upper end of the inner cavity of the settling tank (6). The aeration disc (601) has a frame structure and an opening at the upper end. The end of the connecting pipe (406) inside the settling tank (6) is above the aeration disc (601). Weirs (602) are evenly spaced at the upper port edge of the aeration disc (601). Air pipes (603) are distributed at the bottom of the aeration disc (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 disc (601). The air pipes (603) are supplied with air by an external air pump.

5. A wastewater reuse device for water environment treatment according to claim 1, characterized in that, The bottom of the inner cavity of the settling tank (6) is provided with a settling guide slope (605) inclined towards the water tank (8). A collection port (606) is opened on the side plate of the settling tank (6) at the bottom of the settling guide slope (605). The collection port (606) is connected to the inner cavity of the collection pipe (9).

6. A wastewater reuse device for water environment treatment according to claim 5, characterized in that, The collection pipe (9) is provided with flushing pipes (901) at both ends. A gate (902) is vertically slidably provided at one end of the collection pipe (9) near the settling box (6). The gate (902) is a horizontal "T" shaped structure. A lifting screw (903) is vertically rotatably connected to the middle of the horizontal plate of the gate (902). The lower end of the lifting screw (903) is connected to the top of the collection pipe (9). The lifting screw (903) controls the gate (902) to rise and fall. When the collection pipe (9) is collecting sediment, the gate (902) is at the upper end of the collection port (606). When the collection pipe (9) needs to be cleaned, the gate (902) closes the collection port (606). The flushing pipe (901) forms a one-way cleaning channel with the external high-pressure water.

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