Building sewage treatment equipment and sewage treatment construction method

Abstract

The application belongs to the technical field of urban sewage treatment, and particularly relates to a building sewage treatment equipment, which comprises a bearing part, a flocculation mechanism and an aeration mechanism. The bearing part comprises a reaction tank and a bearing plate, and the bearing plate is fixedly installed at the bottom of the reaction tank. The flocculation mechanism comprises electrode plates and connecting posts, the electrode plates are fixedly installed at the upper end face of the bearing plate, and the connecting posts are electrically connected with the electrode plates. The electrode plates are provided in plurality, and two adjacent electrode plates are parallel to each other. The aeration mechanism comprises a connecting cylinder and an aeration pipe, the connecting cylinder is arranged between the two adjacent electrode plates, one end of the aeration pipe is connected with the output end of an external aeration pump, and the other end of the aeration pipe is in communication with the inner cavity of the connecting cylinder. Through the cooperation of the above structure, the water treatment efficiency can be effectively improved, the oxygen introduced can drive the nearby water to flow, the introduction of oxygen can not only improve the flocculation efficiency, but also reduce the probability of flocculation adhesion on the outer wall of the electrode plate.

Description

Technical Field

[0001] This invention belongs to the field of urban wastewater treatment technology, specifically a building wastewater treatment equipment and a wastewater treatment construction method. Background Technology

[0002] Building wastewater treatment is an important part of modern urban environmental management. It involves treating wastewater generated by buildings (such as domestic sewage, kitchen wastewater, and washing water) to reduce environmental pollution and protect water resources.

[0003] For example, Chinese patent CN117142603A discloses an intelligent wastewater treatment structure and method for construction sites. The treatment structure includes: a wastewater tank for holding wastewater, with a first monitoring component on the inlet pipe for monitoring water quality and flow rate; a flocculation tank located above the wastewater tank and open at the bottom; a purification tank for purifying wastewater, with a first connecting pipe connecting the purification tank and the flocculation tank, the first connecting pipe having a second monitoring component for monitoring water quality and flow rate; a flocculation agent pipe for discharging flocculation agent into the wastewater tank, the flocculation agent pipe having a first power component for powering the discharge of the flocculation agent; a purification agent pipe for discharging purification agent into the purification tank, the purification agent pipe having a second power component for powering the discharge of the purification agent; and a controller. This invention solves the technical problem in existing wastewater treatment equipment that cannot adjust the dosage of chemicals according to the different concentrations of pollutants in the wastewater.

[0004] Although existing technologies can disinfect construction wastewater at high temperatures and adsorb iron-containing substances in the water through magnetic force, construction wastewater usually contains different metals, including copper and zinc, which are not attracted by magnetism under normal conditions. Staff found that even with magnetic adsorption, the purified water still contained metals, which affected subsequent water purification steps. In addition, in the actual use of common flocculation methods for removing impurities in water bodies, the increase in flocs leads to excessive floc content, which inhibits the charge interaction between particles, thereby reducing the rate and efficiency of particle aggregation.

[0005] Therefore, the present invention provides a building wastewater treatment equipment and a wastewater treatment construction method. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a building sewage treatment equipment according to the present invention, comprising a supporting part, a flocculation mechanism, an aeration mechanism, a cleaning mechanism and a capture mechanism; The supporting part includes a reaction tank and a supporting plate, with the supporting plate fixedly installed at the bottom of the reaction tank; The flocculation mechanism includes an electrode plate and a terminal block, through which the electrode plate is connected to an external power source; Multiple electrode plates are provided, and two adjacent electrode plates are parallel to each other; The aeration mechanism includes a connecting cylinder and an aeration pipe. The connecting cylinder is located between two adjacent electrode plates, and an external aeration pump exhausts air into the connecting cylinder through the aeration pipe. The cleaning mechanism includes a container and an elastic strip. The elastic strip is installed on the outer wall of the connecting cylinder, and the sliding of the connecting cylinder is controlled by the air pressure inside the container. The capture mechanism absorbs the flocculants in the reaction tank by changing the air pressure inside the containment chamber.

[0008] Preferably, the outer wall of the connecting cylinder is provided with an exhaust hole, which is inclined toward the outer wall of the electrode plate; The container is fixedly installed on the outer wall of the reaction tank. A control plug is slidably installed on the inner wall of the container. A transmission rod is fixedly installed on one side of the control plug. The other end of the transmission rod extends into the interior of the reaction tank and is fixedly connected to the outer wall of the connecting cylinder. A control cylinder is fixedly installed on the outer wall of the container. The movable end of the control cylinder extends into the inner cavity of the container and is fixedly connected to the outer wall of the control plug.

[0009] Preferably, a sliding plug is elastically installed on the inner wall of the connecting cylinder, a mounting bracket is fixedly installed on the upper end face of the sliding plug, and a sealing ring is fixedly installed on the outer wall of the mounting bracket, with the outer wall of the sealing ring slidingly fitting against the inner wall of the connecting cylinder.

[0010] Preferably, a guide plate is fixedly installed on the inner wall of the reaction tank. The inner wall of the guide plate has an arc-shaped structure and faces the connecting cylinder.

[0011] Preferably, a collecting hopper is slidably installed on the upper end face of the connecting cylinder via a telescopic rod. The bottom of the collecting hopper is a perforated plate, and an opening is provided on one side of the collecting hopper. A filter plate is detachably installed on the side of the collecting hopper away from the opening. A baffle plate is fixedly installed on the inner wall of the collection hopper, and the baffle plate is set at an angle; An arc-shaped plate is fixedly installed at the opening of the collection hopper. Multiple arc-shaped plates are provided, and a gap is reserved between two adjacent arc-shaped plates for material to pass through. A diversion plate is fixedly installed on the outer wall of the arc-shaped plate, and the outer wall of the diversion plate is inclined.

[0012] Preferably, the capture mechanism includes an adapter box and an air intake tube; One end of the suction pipe is fixedly connected to the outer wall of the container, and a one-way valve is installed inside the suction pipe. The transfer box is located above the reaction tank, and the other end of the suction pipe is connected to the inner cavity of the transfer box.

[0013] Preferably, a support frame is fixedly installed on the side wall of the reaction tank, a lifting cylinder is fixedly installed on the outer wall of the support frame, a connecting frame is fixedly installed on the movable end of the lifting cylinder, a guide roller is fixedly installed on the side wall of the connecting frame, and a groove is provided on the side wall of the collection hopper for the guide roller to slide. The transfer box is fixedly installed on the outer wall of the support frame, and an absorption pipe is fixedly installed on the outer wall of the transfer box. The other end of the absorption pipe extends into the collection hopper.

[0014] Preferably, the bottom of the adapter box is provided with a drain hole, a filter screen is provided at the drain hole, and a grating plate for sealing the drain hole is slidably installed on the bottom surface of the adapter box. A transmission plate is rotatably mounted on the upper end face of the connecting frame, and the other end of the transmission plate is rotatably connected to the bottom surface of the grating plate.

[0015] Preferably, the inner wall of the transfer box is provided with a sealing plate for unidirectional sealing of the absorption pipe. The sealing plate is made of elastic material, and a pin fixed to the inner wall of the transfer box is fixed on one side of the sealing plate. A sealing plate is slidably installed on the side wall of the adapter box. A scraper is fixedly installed on the side wall of the sealing plate by a connecting rod. The outer wall of the scraper fits against the inner wall of the adapter box. A limiting plate for engaging with the sealing plate is elastically installed on the outer wall of the adapter box.

[0016] A construction method for building wastewater treatment, the method using the aforementioned building wastewater treatment equipment, includes the following steps: A1. First, the electrode plates are energized to precipitate toxic metal substances in the wastewater through electrocoagulation. A2. The transmission rod is driven by the control cylinder to move, which in turn drives the connecting cylinder to move, and the elastic strip is used to scrape off the deposits on the outer wall of the electrode plate. A3. Aeration is achieved through the connecting cylinder, which simultaneously propels the water in the reaction tank toward the guide plate and collects the flocculants using the collection bucket. A4. Lift the collection hopper, and the transmission rod drives the control plug to slide, generating negative pressure in the transfer box to absorb the flocculent in the collection hopper.

[0017] The beneficial effects of this invention are as follows: 1. This invention uses a support plate with electrode plates, including a cathode plate and an anode plate, both extending into the liquid in the reaction tank. When energized, an electrolytic reaction occurs. When oxygen is introduced by the aeration pump, it is discharged through the exhaust port, thereby reacting with metal substances in the water, combining with metal ions to form insoluble substances, which then precipitate out. Compared to the method of adsorbing iron impurities through magnetic holes, this method can effectively improve the efficiency of water treatment. At the same time, the introduced oxygen drives the flow of nearby water. The introduction of oxygen not only improves the efficiency of flocculation but also reduces the probability of flocculent adhesion to the outer wall of the electrode plate, thus cleaning the electrode plate. With these combined effects, the efficiency of water treatment is maintained. 2. This invention features a collecting hopper that slides synchronously with the connecting cylinder. A filter plate is detachably installed on the side of the collecting hopper away from the opening. An arc-shaped plate is fixedly installed at the opening of the collecting hopper. Multiple arc-shaped plates are provided, with a gap reserved between two adjacent arc-shaped plates for material to pass through. When the collecting hopper moves forward, the water containing flocculants impacts the arc-shaped plates, causing the two arc-shaped plates to move away from each other, so that the water containing flocculants can enter the inner cavity of the collecting hopper. When the collecting hopper moves backward, the water inside the collecting hopper impacts the arc-shaped plates due to inertia, causing the two arc-shaped plates to approach and eventually fit together, thereby sealing the opening of the collecting hopper and preventing the flocculants from flowing out of the inner cavity of the collecting hopper. This can prevent electric field interference, reduce the charge influence between particles, and improve flocculation efficiency. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of the reaction tank in this invention; Figure 3 This is a schematic diagram of the electrode plate installation in this invention; Figure 4 This is a schematic diagram of the internal structure of the connecting cylinder in this invention; Figure 5 This is a schematic diagram of the connection between the collecting hopper and the connecting cylinder in this invention; Figure 6 This is a schematic diagram of the collecting hopper in this invention; Figure 7 This is a schematic diagram of the installation of the filter plate in this invention; Figure 8 This is a schematic diagram of the internal structure of the transfer box in this invention; Figure 9 This is a schematic diagram of the structure of the grating plate in this invention; Figure 10 This is a schematic diagram of the inhalation tube in this invention; Figure 11 This is a schematic diagram of the scraper structure in this invention; Figure 12 This is a flowchart of the wastewater treatment construction method in this invention.

[0020] In the diagram: 1. Reaction tank; 2. Electrode plate; 3. Aeration pipe; 4. Container box; 5. Control cylinder; 6. Connecting cylinder; 7. Support plate; 8. Transmission rod; 9. Control plug; 10. Terminal block; 11. Elastic strip; 12. Sealing ring; 13. Mounting frame; 14. Sliding plug; 15. Drainage plate; 16. Arc plate; 17. Collection hopper; 18. Connecting frame; 19. Guide roller; 20. Absorption pipe; 21. Filter plate; 22. Baffle plate; 23. Support frame; 24. Lifting cylinder; 25. Transfer box; 26. Sealing plate; 27. Filter screen; 28. Grating plate; 29. ​​Transmission plate; 30. Guide plate; 31. Suction pipe; 32. Scraper; 33. Sealing plate; 34. Limiting plate. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] Example 1: As Figures 1 to 4 As shown in the figure, a building wastewater treatment device according to an embodiment of the present invention includes a support unit, a flocculation mechanism, and an aeration mechanism.

[0023] The support unit includes a reaction tank 1 and a support plate 7. The support plate 7 is fixedly installed at the bottom of the reaction tank 1. The reaction tank 1 is used to hold the water resources to be treated. The support plate 7 is made of insulating material, and ceramic is selected in this embodiment.

[0024] The flocculation mechanism includes an electrode plate 2 and a terminal block 10. The electrode plate 2 is divided into two types: a cathode plate and an anode plate. The electrode plate 2 is fixedly installed on the upper end face of the support plate 7. The support plate 7 is the position for the electrode plate 2 to be installed and supported, and the electrode plate 2 extends into the liquid material.

[0025] Terminal 10 is electrically connected to electrode plate 2 to facilitate connection to an external power source. Multiple electrode plates 2 are provided, with two adjacent electrode plates 2 parallel to each other. When energized, an electrolytic reaction occurs. When an electric field is applied to the liquid, the microparticles and colloidal particles suspended in the water will be charged by the electric field. Particles with the same charge will repel each other, while particles with different charges will attract each other, causing the charged particles to gradually aggregate into a group under the action of the electric field, thus completing flocculation.

[0026] The aeration mechanism includes a connecting cylinder 6 and an aeration pipe 3. The connecting cylinder 6 is located between two adjacent electrode plates 2. One end of the aeration pipe 3 is connected to the output end of an external aeration pump, and the other end of the aeration pipe 3 is connected to the inner cavity of the connecting cylinder 6. The external aeration pump discharges oxygen into the inner cavity of the connecting cylinder 6 through the aeration pipe 3.

[0027] To facilitate the separation of metal from water, an exhaust port is provided on the outer wall of the connecting cylinder 6. When oxygen is introduced by the aeration pump, the oxygen is discharged through the exhaust port, thereby reacting with the metal substances in the water. During the electrolysis reaction, OH ions are generated in the water, which combine with the metal ions to form insoluble substances, thus precipitating out. Compared with the method of adsorbing iron impurities by magnetic attraction holes in Chinese Patent No. CN117303629A, which can effectively improve the efficiency of water treatment, and compared with the method of only attracting iron-containing particles by magnetic force, different metals can be removed by oxidizing the metal and then electrolyzing and flocculating, thereby effectively improving the treatment range.

[0028] During electrolysis, flocculent material is generated in reaction tank 1, which easily adheres to the outer wall of electrode plate 2, thus affecting the contact between electrode plate 2 and water. The vent is inclined towards the outer wall of electrode plate 2, so that during aeration, the gas is controlled to blow towards electrode plate 2, driving the flow of nearby water, thereby reducing the probability of flocculent material adhering to the outer wall of electrode plate 2 and maintaining contact between electrode plate 2 and water. The introduction of oxygen not only improves the flocculation efficiency, but also reduces the probability of flocculent material adhering to the outer wall of electrode plate 2, achieving the cleaning of electrode plate 2. With the cooperation of these factors, the efficiency of water treatment is maintained.

[0029] A container 4 is fixedly installed on the outer wall of the reaction tank 1, and a control plug 9 is slidably installed on the inner wall of the container 4. The outer wall of the control plug 9 is made of rubber and slides against the inner wall of the container 4.

[0030] A transmission rod 8 is fixedly installed on one side of the control plug 9. The other end of the transmission rod 8 extends into the interior of the reaction tank 1 and is fixedly connected to the outer wall of the connecting cylinder 6. The sliding adjustment control plug 9 drives the connecting cylinder 6 to slide between two adjacent electrode plates 2 through the transmission rod 8.

[0031] The cleaning mechanism includes a container 4 and an elastic strip 11. The elastic strip 11 is installed on the outer wall of the connecting cylinder 6. The sliding of the connecting cylinder 6 is controlled by the air pressure inside the container 4. The elastic strip 11 is made of rubber and is attached to the outer wall of the electrode plate 2. As the connecting cylinder 6 slides, the elastic strip 11 slides synchronously, thereby wiping away the flocculent on the outer wall of the electrode plate 2. After the flocculent is wiped away, the oxygen discharged from the connecting cylinder 6 controls the water flow, thereby preventing the flocculent from re-attaching. The two work together to prevent the flocculent from adhering and maintain the normal operation of electrocoagulation.

[0032] To facilitate the sliding of the connecting cylinder 6, a control cylinder 5 is fixedly installed on the outer wall of the container 4. The movable end of the control cylinder 5 extends into the inner cavity of the container 4 and is fixedly connected to the outer wall of the control plug 9. The control cylinder 5 is a common hydraulic cylinder. The control cylinder 5 drives the control plug 9 to slide, which in turn drives the elastic strip 11 and the connecting cylinder 6 to slide synchronously, so as to maintain the normal contact between the electrode plate 2 and the water.

[0033] In this embodiment, the connecting cylinder 6 is moved by the control cylinder 5, thereby changing the position of the oxygen inlet so that the water in the reaction tank 1 can be in uniform contact with oxygen, thereby promoting electrocoagulation by improving oxidation efficiency and improving working efficiency.

[0034] A sliding plug 14 is elastically installed on the inner wall of the connecting cylinder 6. The outer wall of the sliding plug 14 slides against the inner wall of the connecting cylinder 6. A spring is provided at the bottom of the sliding plug 14. The outer wall of the spring is fixedly connected to the inner wall of the connecting cylinder 6. After oxygen is introduced into the inner cavity of the connecting cylinder 6, the air pressure in the inner cavity of the connecting cylinder 6 increases, thereby pushing the sliding plug 14 to slide.

[0035] A mounting bracket 13 is fixedly installed on the upper end face of the sliding plug 14. A sealing ring 12 is fixedly installed on the outer wall of the mounting bracket 13. The outer wall of the sealing ring 12 slides against the inner wall of the connecting cylinder 6. The sliding adjustment of the sliding plug 14 controls the sliding of the sealing ring 12 through the mounting bracket 13.

[0036] In this embodiment, multiple vent holes are evenly arranged along the axis of the connecting cylinder 6. Before oxygen is introduced, the sealing ring 12 is flush with the vent holes on the outer wall of the connecting cylinder 6. At this time, the vent holes are blocked by the sealing ring 12 to prevent water from entering the inner cavity of the connecting cylinder 6. When oxygen is introduced, the sliding plug 14 slides until the sealing ring 12 separates from the vent holes. At this time, multiple vent holes on the outer wall of the connecting cylinder 6 are simultaneously opened, so that oxygen is evenly discharged from the outer wall of the connecting cylinder 6, which facilitates the contact between water and oxygen discharged from vent holes at different positions and increases the contact area between water and oxygen.

[0037] A guide plate 30 is fixedly installed on the inner wall of the reaction tank 1. The inner wall of the guide plate 30 has an arc-shaped structure and faces the connecting cylinder 6. When the connecting cylinder 6 discharges oxygen, the water flows synchronously. Then, a part of the water flows towards the guide plate 30 and impacts the arc-shaped surface of the guide plate 30. The arc-shaped surface of the guide plate 30 faces upward so that the water can flow upward after impact, realizing the vertical stirring of the water and facilitating the contact between the water at different positions and the electrode plate 2, further improving the efficiency of electrocoagulation.

[0038] Example 2: Figures 5 to 11 As shown in Example 1, another embodiment of the present invention is as follows: A collection bucket 17 is slidably installed on the upper end face of the connecting cylinder 6 via a telescopic rod. During the sliding process of the connecting cylinder 6, the collection bucket 17 is driven to slide synchronously, so that water can enter the inner cavity of the collection bucket 17.

[0039] The bottom of the collection hopper 17 is a perforated plate, and an opening is provided on one side of the collection hopper 17. The opening of the collection hopper 17 faces the guide plate 30. The water that impacts the guide plate 30 enters the interior of the collection hopper 17 due to inertia, preventing flocculent material from settling and accumulating at the bottom of the reaction tank 1.

[0040] A filter plate 21 is detachably installed on the side of the collection hopper 17 away from the opening. The filter plate 21 is used to filter flocs in the water. After the water flows through the filter plate 21, the flocs are filtered through the filter plate 21 and thus collected in the inner cavity of the collection hopper 17.

[0041] A baffle plate 22 is fixedly installed on the inner wall of the collection hopper 17. The baffle plate 22 is inclined and faces the filter plate 21. When the collection hopper 17 slides forward, the water enters the inner cavity of the collection hopper 17 due to inertia. When the collection hopper 17 slides backward, it is blocked by the baffle plate 22 to prevent the flocculent from sliding out of the inner cavity of the collection hopper 17.

[0042] An arc-shaped plate 16 is fixedly installed at the opening of the collecting hopper 17. Multiple arc-shaped plates 16 are provided, and a gap is reserved between two adjacent arc-shaped plates 16 for material to pass through. The arc-shaped plates 16 are made of elastic material. When the collecting hopper 17 moves forward, the water containing flocculents impacts the arc-shaped plates 16, causing the two arc-shaped plates 16 to move away from each other, so that the water containing flocculents can enter the inner cavity of the collecting hopper 17. When the collecting hopper 17 moves backward, the water inside the collecting hopper 17 impacts the arc-shaped plates 16 due to inertia, causing the two arc-shaped plates 16 to come closer and even fit together, thereby sealing the opening of the collecting hopper 17 and preventing the flocculents from flowing out of the inner cavity of the collecting hopper 17.

[0043] A diversion plate 15 is fixedly installed on the outer wall of the arc plate 16. The outer wall of the diversion plate 15 is inclined. From a top view, the diversion plate 15 is funnel-shaped, which facilitates the collection of water into the inner cavity of the collection hopper 17 when the collection hopper 17 moves forward.

[0044] In this embodiment, flocculants are collected by the collection hopper 17, thereby reducing the flocculant content in the water of the reaction tank 1. High concentrations of flocculants can change the distribution and intensity of the electric field, affecting the uniformity of the electric field in the liquid. Collecting flocculants by the collection hopper 17 can prevent electric field interference and improve electrocoagulation efficiency. At the same time, excessive flocculant content inhibits the charge interaction between particles, thereby reducing the rate and efficiency of particle aggregation. After collecting flocculants, the charge influence between particles can be reduced as much as possible, further improving the flocculation efficiency.

[0045] The capture mechanism absorbs the flocculants in the reaction tank 1 by changing the air pressure inside the containment box 4. The capture mechanism includes a transfer box 25 and an air suction pipe 31. One end of the air suction pipe 31 is fixedly connected to the outer wall of the containment box 4. A one-way valve is installed inside the air suction pipe 31. The air suction pipe 31 is used to control the gas entering the containment box 4. An exhaust pipe is installed on the outer wall of the containment box 4. A one-way valve is installed inside the exhaust pipe. The two one-way valves have opposite flow directions. When the control plug 9 slides back and forth along the inner wall of the containment box 4, the gas enters the inner cavity of the containment box 4 through the air suction pipe 31 and then is discharged through the exhaust pipe.

[0046] The transfer box 25 is located above the reaction tank 1. The other end of the suction pipe 31 is connected to the inner cavity of the transfer box 25. When the control plug 9 pushes the transmission rod 8, the air pressure on the side of the control plug 9 away from the transmission rod 8 decreases, which causes the air pressure on the inner wall of the transfer box 25 to decrease, thereby generating suction at the absorption pipe 20, which is used to absorb flocculents when the collection hopper 17 is raised.

[0047] A support frame 23 is fixedly installed on the side wall of the reaction tank 1, and a lifting cylinder 24 is fixedly installed on the outer wall of the support frame 23. The lifting cylinder 24 is a common electric telescopic rod, and the support frame 23 provides the installation and force position for the lifting cylinder 24.

[0048] A connecting frame 18 is fixedly installed on the movable end of the lifting cylinder 24. A guide roller 19 is fixedly installed on the side wall of the connecting frame 18. A groove is provided on the side wall of the collection hopper 17 for the guide roller 19 to slide. The lifting and adjusting connecting frame 18 drives the collection hopper 17 to rise and fall through the guide roller 19.

[0049] By engaging the guide rollers 19 with the grooves on the outer wall of the collection hopper 17, the lifting and lowering of the collection hopper 17 can be controlled during the sliding of the connecting cylinder 6. At this time, the telescopic rod connecting the collection hopper 17 and the connecting cylinder 6 extends to maintain the connection between the connecting cylinder 6 and the collection hopper 17. In addition, in order to prevent the collection hopper 17 from tilting during the lifting and lowering process, at least three guide rollers 19 are provided. In this embodiment, four guide rollers 19 are provided, symmetrically distributed on the side wall of the collection hopper 17.

[0050] As the flocculated material inside the collection hopper 17 is collected, the thickness of the flocculated material gradually increases. To prevent the flocculated material from overflowing during the sliding process of the collection hopper 17, it is necessary to remove the flocculated material inside the collection hopper 17. A transfer box 25 is fixedly installed on the outer wall of the support frame 23, and an absorption pipe 20 is fixedly installed on the outer wall of the transfer box 25. The other end of the absorption pipe 20 extends into the collection hopper 17, connecting the transfer box 25 to an external negative pressure chamber, thereby generating negative pressure in the inner cavity of the transfer box 25, and then the collection hopper 17... The water is raised until the bottom of the collection hopper 17 separates from the liquid surface inside the reaction tank 1. At this time, the water in the collection hopper 17 is discharged through the mesh plate on the bottom of the collection hopper 17, thereby leaving the water-containing flocculent inside the collection hopper 17. Then, the water-containing flocculent is absorbed through the absorption pipe 20 until the flocculent enters the inner cavity of the transfer box 25, thereby reducing the amount of flocculent stored in the inner cavity of the collection hopper 17 and preventing the flocculent in the collection hopper 17 from flowing back into the interior of the reaction tank 1, thus maintaining the flocculent content inside the reaction tank 1.

[0051] In order to prevent flocculants from entering the external negative pressure chamber, the external negative pressure chamber is connected to the upper end of the transfer box 25, and the absorption pipe 20 is connected to the bottom end of the transfer box 25, thereby preventing flocculants from entering the negative pressure chamber as much as possible.

[0052] After the flocculated material in the collection hopper 17 is absorbed, the height of the collection hopper 17 is adjusted again until the collection hopper 17 is submerged below the liquid surface in the reaction tank 1 again.

[0053] The bottom of the transfer box 25 is provided with a drain hole, and a filter screen 27 is installed at the drain hole. The filter screen 27 is used to filter flocs. A grid plate 28 for blocking the drain hole is slidably installed on the bottom surface of the transfer box 25. After the collection hopper 17 is submerged in the reaction tank 1 again, the grid plate 28 is slid until the grid plate 28 is misaligned with the drain hole. At this time, the drain hole is open, and the water in the flocs drips through the filter screen 27 into the reaction tank 1, realizing the recovery of water.

[0054] When the collection bucket 17 is raised, the sliding grid plate 28 is slid until the grid plate 28 coincides with the drain hole, thereby blocking the drain hole. At this time, a closed chamber is formed in the transfer box 25 so that a negative pressure can be formed in the transfer box 25 after the negative pressure chamber is connected.

[0055] To facilitate the control of the sliding of the grating plate 28, a transmission plate 29 is rotatably mounted on the upper end face of the connecting frame 18. The other end of the transmission plate 29 is rotatably connected to the bottom surface of the grating plate 28. When the connecting frame 18 is raised, the transmission plate 29 pushes the grating plate 28 to close the drainage hole. When the connecting frame 18 is lowered, the transmission plate 29 drives the grating plate 28 to separate from the drainage hole so that the drainage hole can be opened.

[0056] After the collecting hopper 17 descends and is submerged below the liquid surface, the air pressure balance inside the transfer box 25 is maintained because the drain hole at the bottom of the transfer box 25 is open.

[0057] The inner wall of the transfer box 25 is provided with a sealing plate 26 for unidirectional sealing of the absorption pipe 20. The sealing plate 26 is made of elastic material, and a pin fixed to the inner wall of the transfer box 25 is fixed on one side of the sealing plate 26. The sealing plate 26 controls the flocculants to pass through the absorption pipe 20 in only one direction, preventing the flocculants inside the transfer box 25 from flowing back into the collection hopper 17 through the absorption pipe 20.

[0058] A sealing plate 33 is slidably installed on the side wall of the adapter box 25. An elastic rubber ring is provided on the outside of the sealing plate 33, and the sealing connection between the adapter box 25 and the sealing plate 33 is achieved through the elastic rubber ring.

[0059] Since the flocculent contains a large amount of metal, it can be recycled and reused. To facilitate the removal of the flocculent from the transfer box 25, a scraper 32 is fixedly installed on the side wall of the sealing plate 33 via a connecting rod. The outer wall of the scraper 32 is in contact with the inner wall of the transfer box 25. A limiting plate 34 for engaging with the sealing plate 33 is elastically installed on the outer wall of the transfer box 25. The limiting plate 34 is moved until it separates from the sealing plate 33. At this time, the sealing plate 33 is pulled out to the outer wall, and the scraper 32 is pulled to slide via the connecting rod. The scraper 32 slides out the flocculent inside the transfer box 25. The flocculent is then collected at the opening of the transfer box 25 through a container.

[0060] After the flocs are collected, the sealing plate 33 is pushed into the transfer box 25, and the limiting plate 34 is moved to engage with the sealing plate 33 to fix the sealing plate 33, so that the transfer box 25 can continue to collect the flocs in the reaction tank 1, reduce the floc content in the reaction tank 1, and maintain the efficiency of electrocoagulation.

[0061] like Figure 12 As shown, a construction method for building wastewater treatment, which uses the aforementioned building wastewater treatment equipment, includes the following steps: A1. First, energize electrode plate 2 to precipitate toxic metal substances in wastewater through electrocoagulation. A2. The transmission rod 8 is driven to move by the control cylinder 5, and the connecting cylinder 6 is driven to move at the same time. The elastic strip 11 is used to scrape off the deposits on the outer wall of the electrode plate 2. A3. Aeration is achieved through connecting cylinder 6, which simultaneously pushes the water in reaction tank 1 toward guide plate 30 and collects flocculent material using collection bucket 17. A4. Lift the collection hopper 17, and the transmission rod 8 drives the control plug 9 to slide, generating negative pressure in the transfer box 25 to absorb the flocculent in the collection hopper 17.

[0062] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0063] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0064] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A building wastewater treatment device, characterized in that: It includes a support unit, a flocculation mechanism, an aeration mechanism, a cleaning mechanism, and a capture mechanism; The supporting part includes a reaction tank (1) and a supporting plate (7), and the supporting plate (7) is fixedly installed at the bottom of the reaction tank (1); The flocculation mechanism includes an electrode plate (2) and a terminal block (10), and the electrode plate (2) is connected to an external power source through the terminal block (10). The electrode plate (2) is provided in multiple ways, and two adjacent electrode plates (2) are parallel to each other; The aeration mechanism includes a connecting cylinder (6) and an aeration pipe (3). The connecting cylinder (6) is located between two adjacent electrode plates (2). An external aeration pump exhausts gas into the connecting cylinder (6) through the aeration pipe (3). The cleaning mechanism includes a container (4) and an elastic strip (11). The elastic strip (11) is disposed on the outer wall of the connecting cylinder (6). The sliding of the connecting cylinder (6) is controlled by the air pressure inside the container (4). The capturing mechanism absorbs the flocculants in the reaction tank (1) by changing the air pressure inside the container (4). The inner wall of the reaction tank (1) is fixedly installed with a guide plate (30), the inner wall of the guide plate (30) is an arc-shaped structure, and the guide plate (30) faces the connecting cylinder (6). The upper end face of the connecting cylinder (6) is slidably mounted with a collection hopper (17) via a telescopic rod. The bottom of the collection hopper (17) is a mesh plate, and an opening is provided on one side of the collection hopper (17). A filter plate (21) is detachably mounted on the side of the collection hopper (17) away from the opening. A baffle plate (22) is fixedly installed on the inner wall of the collection hopper (17), and the baffle plate (22) is inclined. An arc-shaped plate (16) is fixedly installed at the opening of the collection hopper (17). Multiple arc-shaped plates (16) are provided. A gap is reserved between two adjacent arc-shaped plates (16) for material to pass through. The arc-shaped plate (16) is made of elastic material. A flow guide plate (15) is fixedly installed on the outer wall of the arc plate (16), and the outer wall of the flow guide plate (15) is inclined; an exhaust hole is opened on the outer wall of the connecting cylinder (6), and the exhaust hole is inclined toward the outer wall of the electrode plate (2). The capture mechanism includes a transfer box (25) and an air intake pipe (31). One end of the suction pipe (31) is fixedly connected to the outer wall of the container (4), a one-way valve is provided inside the suction pipe (31), the transfer box (25) is located above the reaction tank (1), and the other end of the suction pipe (31) is connected to the inner cavity of the transfer box (25). The side wall of the reaction tank (1) is fixedly equipped with a support frame (23), the outer wall of the support frame (23) is fixedly equipped with a lifting cylinder (24), the movable end of the lifting cylinder (24) is fixedly equipped with a connecting frame (18), the side wall of the connecting frame (18) is fixedly equipped with a guide roller (19), and the side wall of the collection hopper (17) is provided with a groove for the guide roller (19) to slide. The transfer box (25) is fixedly installed on the outer wall of the support frame (23), and an absorption pipe (20) is fixedly installed on the outer wall of the transfer box (25). The other end of the absorption pipe (20) extends into the collection hopper (17).

2. The building wastewater treatment equipment according to claim 1, characterized in that: The container (4) is fixedly installed on the outer wall of the reaction tank (1). A control plug (9) is slidably installed on the inner wall of the container (4). A transmission rod (8) is fixedly installed on one side of the control plug (9). The other end of the transmission rod (8) extends into the interior of the reaction tank (1) and is fixedly connected to the outer wall of the connecting cylinder (6). A control cylinder (5) is fixedly installed on the outer wall of the container (4). The movable end of the control cylinder (5) extends into the inner cavity of the container (4) and is fixedly connected to the outer wall of the control plug (9).

3. The building wastewater treatment equipment according to claim 2, characterized in that: The inner wall of the connecting cylinder (6) is elastically fitted with a sliding plug (14), and the upper end face of the sliding plug (14) is fixedly fitted with a mounting bracket (13). The outer wall of the mounting bracket (13) is fixedly fitted with a sealing ring (12), and the outer wall of the sealing ring (12) slides against the inner wall of the connecting cylinder (6).

4. The building wastewater treatment equipment according to claim 3, characterized in that: The bottom of the adapter box (25) is provided with a drain hole, and a filter screen (27) is provided at the drain hole. A grid plate (28) for sealing the drain hole is slidably installed on the bottom surface of the adapter box (25). A transmission plate (29) is rotatably mounted on the upper end face of the connecting frame (18), and the other end of the transmission plate (29) is rotatably connected to the bottom surface of the grid plate (28).

5. A building wastewater treatment device according to claim 4, characterized in that: The inner wall of the adapter box (25) is provided with a sealing plate (26) for unidirectional sealing of the absorption tube (20). The sealing plate (26) is made of elastic material, and a pin fixed to the inner wall of the adapter box (25) is fixedly installed on one side of the sealing plate (26). The side wall of the adapter box (25) is slidably fitted with a sealing plate (33), and the side wall of the sealing plate (33) is fixedly fitted with a scraper (32) by a connecting rod. The outer wall of the scraper (32) is in contact with the inner wall of the adapter box (25), and the outer wall of the adapter box (25) is elastically fitted with a limiting plate (34) for engaging with the sealing plate (33).

6. A construction method for building wastewater treatment, wherein the method employs the building wastewater treatment equipment described in claim 5, characterized in that: Includes the following steps: A1. First, energize the electrode plate (2) to precipitate toxic metal substances in the wastewater through electrocoagulation. A2. By controlling the cylinder (5) to drive the transmission rod (8) to move, the connecting cylinder (6) is driven to move, and the elastic strip (11) is used to scrape off the material attached to the outer wall of the electrode plate (2). A3. Aeration is achieved through the connecting tube (6), which simultaneously pushes the water in the reaction tank (1) toward the guide plate (30) and collects the flocculent material using the collection bucket (17). A4. Lift the collection hopper (17), and the transmission rod (8) drives the control plug (9) to slide, generating negative pressure in the transfer box (25) to absorb the flocculent in the collection hopper (17).

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