Rainwater treatment filtering device and treatment method for supplementing municipal water

Abstract

The invention belongs to the technical field of municipal water treatment, and particularly relates to a rainwater treatment filtering device for municipal water replenishing and a treatment method. A cyclone desanding barrel; in the flocculation process, a third motor is started, the third motor drives a rotating rod to rotate through an output shaft, the rotating rod drives a stirring paddle to rotate during rotation, and pollution particles in rainwater are subjected to electrolysis and are aggregated with Al ions separated out from a positive electrode to form clusters and settled; the rotating rod drives a first bevel gear to rotate, the first bevel gear drives a second bevel gear to rotate, the second bevel gear drives a third bevel gear to rotate reversely, the third bevel gear drives a cross plate and an AL anode bar to rotate reversely, the AL anode bar and a stirring paddle rotate in different directions, the relative static state is broken, and the AL anode bar makes full contact with water. Therefore, pollutant particles in the water body are gathered into clusters and settled, no medicament needs to be added, secondary pollution is low, microbial flora does not need to be arranged, and the influence of external factors on microbial activity is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of municipal water treatment, in particular to a rainwater treatment filtering device and a treatment method for municipal water replenishment. Background Art

[0002] With the growth of global population and economic development, the demand for water resources is increasing, while the available water resources are decreasing. Usually, rainwater treatment systems can effectively collect and utilize rainwater, provide renewable water resources, and thus alleviate the pressure of urban water use and ensure the normal life and economic development of residents. This method is particularly suitable for areas with scarce water resources, and can significantly reduce the pressure on the exploitation of groundwater and surface water.

[0003] A Chinese patent with announcement number CN104829051B discloses an intelligent rainwater / sewage purification system and its application and treatment method, including an intelligent control device and a purification device, wherein the purification device includes a sewage sludge sedimentation tank, a sewage sludge separation tank, a filter stone water purification tank, an activated carbon water purification tank, a microbial water purification tank and a clean water storage tank; by subjecting the purified sewage to microbial water purification, the organic nitrogen, metal ions, turbidity, COD (chemical oxygen demand), BOD (biochemical oxygen demand), and SS (plankton) in the rainwater / sewage collected and treated by the microbial flora are all reduced to the sewage treatment discharge standard, while DO (dissolved oxygen) increases, and the water quality is improved; harmful microbial bodies in the mixed water body are eliminated, and beneficial microbial flora are bred and flow into the clean water storage tank with the treated clean water for storage, thereby completing the purification of rainwater / sewage.

[0004] In the above technology, microbial flora is used to treat rainwater / sewage, but the activity of microbial flora is easily affected by environmental factors, such as temperature and humidity. Under extreme weather conditions, the activity of microorganisms may decrease, and the concentration of pollutants in sewage is too high, which may exceed the treatment capacity of microorganisms, resulting in poor treatment effect, thus affecting the sewage treatment effect; and microbial flora has different degradation capabilities for different types of pollutants. If the microbial species are not selected properly, it may also lead to poor treatment effect.

[0005] To this end, the present invention provides a rainwater treatment and filtering device and a treatment method for municipal water replenishment. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is: a rainwater treatment and filtering device for municipal water replenishment described in the present invention comprises:

[0008] rainwater storage tanks;

[0009] The cyclone sand removal bucket is connected to one side of the rainwater storage tank through the first water delivery pipe;

[0010] The second delivery pipe is connected to a sedimentation tank fixedly connected to one side of the cyclone sand removal barrel;

[0011] The third water pipe is connected to the electric flocculation tank fixedly connected to one side of the sedimentation tank;

[0012] The fourth water delivery pipe is connected to the disinfection tank fixedly connected to one side of the electric flocculation tank;

[0013] The water storage tank is connected to one side of the disinfection tank through the water outlet well;

[0014] A flocculation mechanism disposed inside the electric flocculation tank;

[0015] The flocculation mechanism comprises a third motor fixedly connected to the top of the electric flocculation tank, and the output shaft of the third motor is rotatably connected to the electric flocculation tank through a bearing; the output shaft of the third motor is fixedly connected to a rotating rod, and a plurality of stirring paddles are fixedly connected to the rotating rod; the top end of the rotating rod is fixedly connected to a first bevel gear, and the bottom end of the first bevel gear is rotatably connected to an L-shaped plate through a bearing, and the L-shaped plate is rotatably connected to a second bevel gear through a rotating shaft; the top end of the rotating rod is rotatably connected to a third bevel gear through a bearing, and the third bevel gear is symmetrically arranged with the first bevel gear; the two ends of the second bevel gear are respectively meshed with the first bevel gear and the third bevel gear; the top end of the third bevel gear is fixedly connected to a cross plate, and the bottom of the cross plate is evenly fixedly connected to four AL anode rods; the bottom of the rotating rod is fixedly connected to a scraper rod, and the scraper rod contacts the inner wall of the electric flocculation tank; one side of the electric flocculation tank is connected and fixedly connected to a third sewage pipe, and a sewage valve is installed on the third sewage pipe; one end of the third sewage pipe is fixedly connected to a third filter screen.

[0016] Preferably, the side of the rainwater storage tank away from the vortex sand storage barrel is connected and fixedly connected to an interception well; an upstream port and a downstream port are respectively opened on the interception well, and a first gate plate is arranged on one side of the upstream port; a second gate plate is arranged on one side of the downstream port, and two hydraulic cylinders are fixedly connected to the top of the interception well, and the output ends of the hydraulic cylinders are respectively fixedly connected to the tops of the first gate plate and the second gate plate; the first gate plate and the second gate plate are respectively slidably connected to the inner wall of the interception well through guide rails; a first water level gauge is arranged in the rainwater storage tank.

[0017] Preferably, a first filter is fixedly connected to one end of the first water pipe passing through a rainwater storage tank, and an impeller is rotatably connected to the first filter screen via a rotating shaft, and a scraper rod is fixedly connected to the rotating shaft; a first motor is fixedly connected to the rainwater storage tank, and an output shaft of the first motor is rotatably connected to the rainwater storage tank via a bearing, and a circular gate plate is fixedly connected to the output shaft of the first motor, and the area of ​​the circular gate plate is larger than the cross-sectional area of ​​the first water pipe; the bottom end of the rainwater storage tank is connected and fixedly connected to a first sewage pipe, and a sewage pump is installed on the first sewage pipe.

[0018] Preferably, the bottom of the vortex sand removal bucket is connected to a sand collecting bucket via a flange, a control valve is installed at the bottom of the sand collecting bucket, and four pillars are fixedly connected to the bottom of the sand collecting bucket; a drainage ring plate is fixedly connected to the inner wall of the vortex sand removal bucket via a connecting plate, and a plurality of magnetic blocks are alternately arranged between the drainage ring plate and the vortex sand removal bucket; a cross plate is fixedly connected to the inner wall of the bottom end of the vortex sand storage bucket, and a spiral blade is rotatably connected to the cross plate via a rotating shaft.

[0019] Preferably, one end of the second water delivery pipe extends into the cyclone sand removal barrel and is fixedly connected to a second filter screen.

[0020] Preferably, the sedimentation tank is configured to be an inclined concave shape, and a plurality of inclined plates are symmetrically connected to both ends of the sedimentation tank; the inclined plates are all arranged below the second water pipe and the third water pipe.

[0021] Preferably, two guide rods are fixedly connected to the inner wall of the bottom end of the sedimentation tank, and scrapers are slidably connected to the two guide rods; a second motor is fixedly connected to the outer wall of the sedimentation tank, and the output shaft of the second motor is fixedly connected to a reciprocating screw, both ends of the reciprocating screw are rotatably connected to the sedimentation tank through bearings, the scraper is threadedly connected to the reciprocating screw, one end of the sedimentation tank is connected and fixedly connected to a second sewage pipe, and a sewage pump is installed on the second sewage pipe.

[0022] Preferably, an electric push rod is fixedly connected to the top of the disinfection pool, the output end of the electric push rod extends into the disinfection pool, and is fixedly connected to a lifting plate through a mounting block, a plurality of ultraviolet lamps are installed on the lifting plate, a mounting plate is fixedly connected to the inner wall of the disinfection pool, a plurality of through cavities are fixedly connected to the mounting plate, and the ultraviolet lamps are all arranged in the through cavities; a second water level gauge is fixedly connected to the bottom of the mounting plate; the through cavity is made of transparent material.

[0023] Preferably, a third water level gauge is fixedly connected to the top inner wall of the water reservoir, and a drain pipe is fixedly connected to one side of the water reservoir, and a water valve is installed on the drain pipe.

[0024] A method for treating rainwater for municipal water replenishment, preferably, the method comprises the following steps:

[0025] S1: Rainwater enters the rainwater storage tank through the interception well. When the water level of the rainwater storage tank reaches the designed level, the interception well is adjusted, and no more rainwater flows into the rainwater storage tank.

[0026] S2: The rainwater storage tank adjusts the flow rate through the circular gate, and the rainwater passes through the first filter, the cyclone sand removal bucket, and the sedimentation tank in sequence to deposit the sediment in the rainwater;

[0027] S3: Rainwater passes through the electrocoagulation tank, which uses the AL anode rod to dissolve and generate highly active polymorphic polyaluminum flocculants to aggregate and settle pollutant particles in the water;

[0028] S4: Rainwater enters the disinfection pool, and when the disinfection pool is full, the ultraviolet lamp is turned on for disinfection;

[0029] S5: After being disinfected in the disinfection tank, the rainwater enters the reservoir through the outlet gate well. When the designed reservoir water level is reached, the outlet gate well is closed and no more treated rainwater flows into the reservoir.

[0030] The beneficial effects of the present invention are as follows:

[0031] 1. A rainwater treatment and filtration device and treatment method for municipal water replenishment described in the present invention, through the cooperation of AL anode rod and stirring paddle, rainwater passes through the electric flocculation tank, and the electric flocculation tank uses AL anode rod to dissolve and generate highly active multi-morphic polyaluminum flocculant. During the flocculation process, by turning on the third motor, the third motor drives the rotating rod to rotate through the output shaft, and the rotating rod drives the stirring paddle to rotate when rotating, and the polluted particles in the rainwater are electrolyzed and aggregated with Al ions precipitated from the positive electrode and settle; during the rotation of the rotating rod, the rotating rod drives the first bevel gear to rotate, and the second bevel gear drives the second bevel gear to rotate through the first bevel gear, and the second bevel gear drives the second bevel gear to rotate. The third bevel gear rotates in the opposite direction, driving the cross plate and AL anode rod to rotate in the opposite direction through the third bevel gear. The AL anode rod and the stirring paddle rotate in different directions respectively, reducing the rotation in the same direction. The water speed is consistent, and the AL anode rod and the water may reach a relatively static state with the contact area unchanged. The reverse rotation breaks the relatively static state, and the AL anode rod is in full contact with the water, thereby agglomerating and settling the pollutant particles in the water. The use of the electric flocculation tank does not require the addition of external agents, resulting in less secondary pollution, and no need to set up microbial flora, reducing the influence of external factors on microbial activity, and the operation and equipment maintenance are simple to maintain the flocculation and sedimentation effect.

[0032] 2. The rainwater treatment and filtration device and treatment method for municipal water replenishment described in the present invention, through the cooperation of the magnetic block and the spiral blade, when being sent into the interior of the cyclone sand removal barrel, the magnetic block will play a certain magnetic attraction and screening role on the metal impurities mixed in the water flow, effectively preventing the water flow mixed with metal impurities from wearing the spiral blades, and when the water flow enters under a certain pressure and produces a strong rotational motion, the spiral blades will realize a rotary rotation after being subjected to the stamping force of the water flow. At this time, under the joint action of centrifugal force, centripetal force, buoyancy and fluid drag, the water with low density rises and is carried out through the second conveying pipe part, and the sand particles with high density will accumulate inside the sand collecting bucket, thereby achieving the purpose of sand removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below in conjunction with the accompanying drawings.

[0034] Figure 1 is a first stereogram of the present invention;

[0035] Figure 2 is a second stereogram of the present invention;

[0036] Figure 3 is a cross-sectional view of the present invention;

[0037] Figure 4 It is a structural schematic diagram of the interception well in the present invention;

[0038] Figure 5 It is a structural schematic diagram of the cross section of the first water delivery pipe in the present invention;

[0039] Figure 6 It is a structural schematic diagram of the cyclone sand removal bucket in the present invention;

[0040] Figure 7 It is a structural schematic diagram of the cross section of the sedimentation tank in the present invention;

[0041] Figure 8 It is a structural schematic diagram of the AL anode rod in the present invention;

[0042] Fig. 9 It is a schematic diagram of the structure enlarged at A in the present invention;

[0043] Fig.10 It is a structural schematic diagram of the ultraviolet lamp in the present invention;

[0044] Fig.11 is a method flow chart of an embodiment of the present invention;

[0045] In the figure: 1. rainwater storage tank; 11. interception well; 12. hydraulic cylinder; 13. first gate; 14. second gate; 15. downstream port; 16. upstream port; 17. first water pipe; 171. scraper rod; 172. first filter; 173. first motor; 174. round gate; 175. impeller; 18. first sewage pipe; 19. first water level gauge; 2. cyclone sand removal bucket; 21. sand collecting bucket; 22. support; 23. second water pipe; 24. second filter; 25. horizontal plate; 26. spiral blade; 27. connecting plate; 28. drainage ring plate; 29. ​​magnetic block; 3. sedimentation tank; 31. second motor; 32. second sewage pipe; 33. The third water pipe; 34, inclined plate; 35, scraper; 36, reciprocating screw; 37, guide rod; 4, electric flocculation tank; 41, third motor; 42, third sewage pipe; 43, fourth water pipe; 44, rotating rod; 45, stirring paddle; 46, scraper; 47, first bevel gear; 471, L-shaped plate; 472, second bevel gear; 473, third bevel gear; 474, cross plate; 475, AL anode rod; 48, third filter; 5, disinfection tank; 51, electric push rod; 52, water outlet well; 53, through cavity; 54, ultraviolet lamp; 55, lifting plate; 56, mounting plate; 6, water reservoir; 61, third water level gauge; 62, drain pipe. DETAILED DESCRIPTION

[0046] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0047] like Figures 1 to 10As shown, a rainwater treatment and filtration device for municipal water replenishment described in an embodiment of the present invention includes: a rainwater storage tank 1; a cyclone sand removal barrel 2 fixedly connected to one side of the rainwater storage tank 1 is connected through a first water delivery pipe 17; a sedimentation tank 3 fixedly connected to one side of the cyclone sand removal barrel 2 is connected through a second delivery pipe; an electric flocculation tank 4 fixedly connected to one side of the sedimentation tank 3 is connected through a third water delivery pipe 33; a disinfection tank 5 fixedly connected to one side of the electric flocculation tank 4 is connected through a fourth water delivery pipe 43; a water storage tank 6 fixedly connected to one side of the disinfection tank 5 is connected through a water outlet well 52; a flocculation mechanism arranged inside the electric flocculation tank 4; the flocculation mechanism includes a third motor 41 fixedly connected to the top of the electric flocculation tank 4, and the output shaft of the third motor 41 is rotatably connected to the electric flocculation tank 4 through a bearing; the output shaft of the third motor 41 is fixedly connected to a rotating rod 44, and a plurality of stirring paddles 45 are fixedly connected to the rotating rod 44; the top of the rotating rod 44 is fixedly connected to a first conical gear Wheel 47, the bottom end of the first bevel gear 47 is rotatably connected to an L-shaped plate 471 through a bearing, and the L-shaped plate 471 is rotatably connected to a second bevel gear 472 through a rotating shaft; the top end of the rotating rod 44 is rotatably connected to a third bevel gear 473 through a bearing, and the third bevel gear 473 is symmetrically arranged with the first bevel gear 47; the two ends of the second bevel gear 472 are respectively meshed with the first bevel gear 47 and the third bevel gear 473; the top end of the third bevel gear 473 is fixedly connected to a cross plate 474, and the bottom of the cross plate 474 is evenly fixedly connected to four AL anode rods 475; the bottom of the rotating rod 44 is fixedly connected to a scraper rod 46, and the scraper rod 46 is in contact with the inner wall of the electric flocculation tank 4; one side of the electric flocculation tank 4 is connected and fixedly connected to a third sewage pipe 42, and a sewage valve is installed on the third sewage pipe 42; one end of the third sewage pipe 42 is fixedly connected to a third filter screen 48.

[0048] The rainwater passes through the interception well 11 and enters the rainwater regulating tank 1 for storage. When the designed water level of the rainwater regulating tank 1 is reached, the interception well 11 is adjusted, and no more rainwater flows into the rainwater regulating tank 1. The rainwater regulating tank 1 adjusts the flow rate through the circular gate plate 174, and passes through the first filter screen 172, the cyclone sand removal barrel 2, and the sedimentation tank 3 in sequence to deposit the silt in the rainwater. The rainwater passes through the electric flocculation tank 4, and the electric flocculation tank 4 uses the AL anode rod 475 for dissolution to generate a highly active multi-morphic polyaluminum flocculant, which aggregates the pollutant particles in the water body into agglomerates and settles them. The rainwater enters the disinfection tank 5, and after the disinfection tank 5 is full of water, the ultraviolet lamp 54 is turned on for disinfection. After the rainwater is disinfected in the disinfection tank 5, it enters the reservoir 6 through the outlet gate well 52. When the designed water level of the reservoir 6 is reached, the outlet gate well 52 is closed, and no more treated rainwater flows into the reservoir 6.

[0049] When the flocculation mechanism provided by the present invention is in use, rainwater passes through the electric flocculation tank 4, and the electric flocculation tank 4 uses the AL anode rod 475 for dissolution to generate a highly active multi-morphological polyaluminum flocculant. During the flocculation process, by turning on the third motor 41, the third motor 41 drives the rotating rod 44 to rotate through the output shaft, and the rotating rod 44 drives the stirring paddle 45 to rotate when rotating. The polluted particles in the rainwater are electrolyzed and aggregated with the Al ions precipitated from the positive electrode and settle; during the rotation of the rotating rod 44, the rotating rod 44 drives the first bevel gear 47 to rotate, and the second bevel gear 472 is driven to rotate through the first bevel gear 47, and the third bevel gear 473 is driven to rotate in the opposite direction through the second bevel gear 472. , the cross plate 474 and the AL anode rod 475 are driven to rotate in the opposite direction through the third bevel gear 473, and the AL anode rod 475 and the stirring paddle 45 are rotated in different directions respectively, reducing the rotation in the same direction, and the water speed is consistent. It is possible that the AL anode rod 475 and the water reach a relatively static state, and the contact area remains unchanged. By rotating in the opposite direction, the relatively static state is broken, and the AL anode rod 475 is fully in contact with the water, thereby agglomerating and settling the pollutant particles in the water body. The use of the electric flocculation tank 4 does not require the addition of external agents and has less secondary pollution, and does not need to set up a microbial flora, reducing the influence of external factors on the activity of microorganisms, and the operation and equipment maintenance are simple, maintaining the flocculation and sedimentation effect.

[0050] like Figure 3 and Figure 4 As shown, the side of the rainwater storage tank 1 away from the vortex sand storage barrel is connected and fixedly connected to a interception well 11; an upstream port 16 and a downstream port 15 are respectively opened on the interception well 11, and a first gate plate 13 is arranged on one side of the upstream port 16; a second gate plate 14 is arranged on one side of the downstream port 15; two hydraulic cylinders 12 are fixedly connected to the top of the interception well 11, and the output ends of the hydraulic cylinders 12 are respectively fixedly connected to the tops of the first gate plate 13 and the second gate plate 14; the first gate plate 13 and the second gate plate 14 are respectively slidably connected to the inner wall of the interception well 11 through guide rails; a first water level gauge 19 is arranged in the rainwater storage tank 1.

[0051] When the upstream port 16 and the downstream port 15 provided by the present invention are in use, during the interception process, the second gate plate 14 on the downstream port 15 is closed, and the first gate plate 13 of the upstream port 16 is gradually opened, the upstream water will gradually fill the interception well 11, and the downstream wastewater cannot be discharged through the downstream port 15. When the water level in the interception well 11 rises to a certain height, the second gate plate 14 of the downstream port 15 is opened, and the water in the interception well 11 will flow out through the downstream port 15. During the interception process, by controlling the opening and closing speeds of the upstream port 16 and the downstream port 15, the changes in the interception water level and flow rate can be controlled, thereby achieving the purpose of adjusting the flow of the water body; the first gate plate 13 and the second gate plate 14 are respectively controlled by the hydraulic cylinder 12, and the hydraulic cylinder 12 is electrically connected to the first water level gauge 19, so that the opening and closing of the hydraulic cylinder 12 is controlled by the water level change.

[0052] like Figure 5 As shown, a first filter screen 172 is fixedly connected to one end of the first water pipe 17 close to the rainwater storage tank 1, and an impeller 175 is rotatably connected to the first filter screen 172 via a rotating shaft, and a scraper rod 171 is fixedly connected to the rotating shaft; a first motor 173 is fixedly connected to the rainwater storage tank 1, and an output shaft of the first motor 173 is rotatably connected to the rainwater storage tank 1 via a bearing, and a circular gate plate 174 is fixedly connected to the output shaft of the first motor 173, and the area of ​​the circular gate plate 174 is larger than the cross-sectional area of ​​the first water pipe 17; the bottom end of the rainwater storage tank 1 is connected and fixedly connected to a first sewage pipe 18, and a sewage pump is installed on the first sewage pipe 18.

[0053] When the impeller 175 and the scraper rod 171 provided by the present invention are in use, the first motor 173 needs to be turned on. The first motor 173 drives the circular gate plate 174 to rotate through the output shaft. The circular gate plate 174 rotates and no longer blocks the first conveying pipe. When the water flows through the rainwater storage tank 1 and enters the cyclone sand removal barrel 2, it passes through the first water conveying pipe 17. During the conveying process, the impeller 175 is flushed by rainwater, and the impeller 175 rotates. The pressure wheel drives the rotating shaft and the scraper rod 171 to rotate. The scraper rod 171 removes the silt on the first filter screen 172 to prevent the first filter screen 172 from being blocked; the silt finally flows out through the first sewage pipe 18.

[0054] like Figure 3 and Figure 6 As shown, the bottom of the cyclone sand removal bucket 2 is connected to a sand collecting bucket 21 through a flange, a control valve is installed at the bottom of the sand collecting bucket 21, and four pillars 22 are fixedly connected to the bottom of the sand collecting bucket 21; a drainage ring plate 28 is fixedly connected to the inner wall of the cyclone sand removal bucket 2 through a connecting plate 27, and a plurality of magnetic blocks 29 are staggered between the drainage ring plate 28 and the cyclone sand removal bucket 2; a cross plate 25 is fixedly connected to the inner wall of the bottom end of the cyclone sand storage bucket, and a spiral blade 26 is rotatably connected to the cross plate 25 through a rotating shaft.

[0055] When the magnetic block 29 provided by the present invention is used and is sent into the interior of the cyclone sand removal barrel 2 through the first water delivery pipe 17, the magnetic block 29 will play a certain role in magnetic attraction and screening of metal impurities mixed in the water flow, effectively preventing the water flow mixed with metal impurities from wearing the spiral blades 26. When the water flow enters under a certain pressure and generates a strong rotational motion, the spiral blades 26 will realize a rotary rotation after being subjected to the punching force of the water flow. At this time, under the combined action of centrifugal force, centripetal force, buoyancy and fluid drag, the water with low density rises and is carried out through the second delivery pipe portion, and the sand particles with high density will accumulate inside the sand collecting bucket 21, thereby achieving the purpose of sand removal.

[0056] like Figure 3 As shown, one end of the second water delivery pipe 23 extends into the cyclone sand removal barrel 2 and is fixedly connected to a second filter screen 24 .

[0057] When in use, the second filter screen 24 provided by the present invention is used to filter sand particles to prevent some of the sand particles from flowing upward with the water flow.

[0058] like Figure 3 As shown, the sedimentation tank 3 is configured to be an inclined concave shape, and a plurality of inclined plates 34 are symmetrically connected at both ends of the sedimentation tank 3; the inclined plates 34 are all arranged below the second water pipe 23 and the third water pipe 33.

[0059] When the inclined plate 34 provided by the present invention is in use, the water flow velocity is slowed down and the fluctuation of the water flow is reduced under the action of the inclined plate 34 , so that the silt in the water flow is settled at the bottom of the sedimentation tank 3 .

[0060] like Figure 7 As shown, two guide rods 37 are fixedly connected to the inner wall of the bottom end of the sedimentation tank 3, and scrapers 35 are slidably connected to the two guide rods 37; a second motor 31 is fixedly connected to the outer wall of the sedimentation tank 3, and a reciprocating screw 36 is fixedly connected to the output shaft of the second motor 31, and both ends of the reciprocating screw 36 are rotatably connected to the sedimentation tank 3 through bearings, and the scraper 35 is threadedly connected to the reciprocating screw 36, and one end of the sedimentation tank 3 is connected and fixedly connected to a second sewage pipe 32, and a sewage pump is installed on the second sewage pipe 32.

[0061] When the scraper 35 provided by the present invention is in use, there is a lot of mud and sand at the bottom of the sedimentation tank 3 after a period of time. By turning on the second motor 31, the reciprocating screw 36 is driven to rotate by the output shaft of the second motor 31, and the scraper 35 is driven to reciprocate by the reciprocating screw 36. When the scraper 35 moves, it slides on the guide rod 37, and the guide rod 37 limits the scraper 35 in the horizontal direction. The scraper 35 scrapes the mud and sand at the bottom of the sedimentation tank 3 to facilitate outflow through the second sewage pipe 32.

[0062] like Fig.10As shown, an electric push rod 51 is fixedly connected to the top of the disinfection tank 5, the output end of the electric push rod 51 extends into the disinfection tank 5, and is fixedly connected to a lifting plate 55 through a mounting block, and a plurality of ultraviolet lamps 54 are mounted on the lifting plate 55, and a mounting plate 56 is fixedly connected to the inner wall of the disinfection tank 5, and a plurality of through cavities 53 are fixedly connected to the mounting plate 56, and the ultraviolet lamps 54 are all arranged in the through cavities 53; a second water level gauge is fixedly connected to the bottom of the mounting plate 56; and the through cavities 53 are made of transparent material.

[0063] When the ultraviolet lamp 54 provided by the present invention is in use, the ultraviolet lamp 54 is turned on, and rainwater stays in the disinfection pool 5 for 10-15 minutes for disinfection. During the disinfection process, the electric push rod 51 is turned on, and the electric push rod 51 drives the lifting plate 55 and the ultraviolet lamp 54 to move up and down through the output end to expand the disinfection area. The through cavity 53 is provided to prevent rainwater from directly contacting the ultraviolet lamp 54, so as to protect the ultraviolet lamp 54.

[0064] like Figure 3 As shown, a third water level gauge 61 is fixedly connected to the top inner wall of the water reservoir 6 , and a drainage pipe 62 is fixedly connected to one side of the water reservoir 6 , and a water valve is installed on the drainage pipe 62 .

[0065] When the third water level gauge 61 provided by the present invention is in use, the third water level gauge 61 is used to monitor the water volume in the water reservoir 6. When the water volume reaches a set value, the gate valve on the water outlet well 52 can be controlled to be closed.

[0066] like Fig.11 As shown, a rainwater treatment method for municipal water replenishment comprises the following steps:

[0067] S1: Rainwater enters the rainwater storage tank 1 through the interception well 11 for storage. When the water level of the rainwater storage tank 1 reaches the designed level, the interception well 11 is adjusted, and no more rainwater flows into the rainwater storage tank 1.

[0068] S2: The rainwater storage tank 1 adjusts the flow rate through the circular gate plate 174, and the rainwater passes through the first filter screen 172, the cyclone sand removal barrel 2, and the sedimentation tank 3 in sequence to deposit the sediment in the rainwater;

[0069] S3: Rainwater passes through the electrocoagulation tank 4, which uses the AL anode rod 475 to dissolve and generate highly active polymorphic polyaluminum flocculants to aggregate and settle pollutant particles in the water;

[0070] S4: Rainwater enters the disinfection pool 5, and after the disinfection pool 5 is full, the ultraviolet lamp 54 is turned on for disinfection;

[0071] S5: After being disinfected in the disinfection tank 5, the rainwater enters the water storage tank 6 through the water outlet well 52. When the water level of the water storage tank 6 reaches the designed level, the water outlet well 52 is closed, and no more treated rainwater flows into the water storage tank 6.

[0072] Working principle: rainwater enters rainwater storage tank 1 through interception well 11 for storage. When the designed water level of rainwater storage tank 1 is reached, interception well 11 is adjusted, and rainwater no longer flows into rainwater storage tank 1; rainwater storage tank 1 adjusts the flow rate through circular gate plate 174, and passes through first filter screen 172, cyclone sand removal bucket 2, and sedimentation tank 3 in sequence to deposit the silt in rainwater; rainwater passes through electric flocculation tank 4, and electric flocculation tank 4 uses AL anode rod 475 for dissolution to generate highly active multi-morphic polyaluminum flocculant, which aggregates pollutant particles in the water body and settles them; rainwater enters disinfection tank 5, and after disinfection tank 5 is full, ultraviolet lamp 54 is turned on for disinfection; after disinfection in disinfection tank 5, rainwater enters reservoir 6 through outlet gate well 52 for disinfection, and when the designed water level of reservoir 6 is reached, outlet gate well 52 is closed, and no treated rainwater flows into reservoir 6;

[0073] During the interception process, the second gate 14 on the downstream port 15 is closed, and the first gate 13 of the upstream port 16 is gradually opened. The upstream water will gradually fill the interception well 11, while the downstream wastewater cannot be discharged through the downstream port 15. When the water level in the interception well 11 rises to a certain height, the second gate 14 of the downstream port 15 is opened, and the water in the interception well 11 will flow out through the downstream port 15. During the interception process, by controlling the opening and closing speeds of the upstream port 16 and the downstream port 15, the changes in the interception water level and flow rate can be controlled, thereby achieving the purpose of adjusting the flow of the water body; the first gate 13 and the second gate 14 are respectively controlled by the hydraulic cylinder 12, and the hydraulic cylinder 12 is electrically connected to the first water level gauge 19, so that the opening and closing of the hydraulic cylinder 12 is controlled by the water level change;

[0074] When the water is sent into the cyclone sand removal bucket 2 through the first water delivery pipe 17, the magnetic block 29 will play a certain role in magnetic attraction and screening of metal impurities mixed in the water flow, effectively preventing the water flow mixed with metal impurities from wearing the spiral blades 26. When the water flow enters under a certain pressure and generates a strong rotational motion, the spiral blades 26 will realize a rotary rotation after being subjected to the punching force of the water flow. At this time, under the combined action of centrifugal force, centripetal force, buoyancy and fluid drag, the water with low density rises and is taken out through the second delivery pipe part, and the sand particles with high density will accumulate inside the sand collecting bucket 21, thereby achieving the purpose of sand removal.

[0075] Under the action of the inclined plate 34, the water flow speed is slowed down, the fluctuation of the water flow is reduced, and the silt in the water flow is settled at the bottom of the sedimentation tank 3; after a period of time, there is a lot of silt at the bottom of the sedimentation tank 3, and the second motor 31 is turned on, and the reciprocating screw 36 is driven to rotate by the output shaft of the second motor 31, and the scraper 35 is driven to reciprocate by the reciprocating screw 36. When the scraper 35 moves, it slides on the guide rod 37, and the guide rod 37 limits the scraper 35 in the horizontal direction. The scraper 35 scrapes the silt at the bottom of the sedimentation tank 3, which is convenient for it to flow out through the second sewage pipe 32;

[0076] The rainwater passes through the electric flocculation tank 4, and the electric flocculation tank 4 uses the AL anode rod 475 to dissolve and generate a highly active multi-morphological polyaluminum flocculant. During the flocculation process, by turning on the third motor 41, the third motor 41 drives the rotating rod 44 to rotate through the output shaft, and the rotating rod 44 drives the stirring paddle 45 to rotate when rotating. The polluted particles in the rainwater are electrolyzed and aggregated with the Al ions precipitated from the positive electrode and settle; during the rotation of the rotating rod 44, the rotating rod 44 drives the first bevel gear 47 to rotate, and the second bevel gear 472 is driven to rotate through the first bevel gear 47, and the third bevel gear 473 is driven to rotate in the opposite direction through the second bevel gear 472, and the third bevel gear 473 is driven to rotate in the opposite direction through the third bevel gear The wheel 473 drives the cross plate 474 and the AL anode rod 475 to rotate in the opposite direction. The AL anode rod 475 and the stirring paddle 45 rotate in different directions respectively, reducing the rotation in the same direction. The water speed is consistent, and the AL anode rod 475 and the water may reach a relatively static state, and the contact area remains unchanged. The reverse rotation breaks the relatively static state, and the AL anode rod 475 is fully in contact with the water, so that the pollutant particles in the water body are aggregated into agglomerates and precipitated. The use of the electric flocculation tank 4 does not require the addition of external agents, and there is less secondary pollution. There is no need to set up a microbial flora, which reduces the influence of external factors on the activity of microorganisms, and the operation and equipment maintenance are simple, and the flocculation and sedimentation effect is maintained;

[0077] The ultraviolet lamp 54 is turned on, and the rainwater stays in the disinfection pool 5 for 10-15 minutes for disinfection. During the disinfection process, the electric push rod 51 is turned on, and the electric push rod 51 drives the lifting plate 55 and the ultraviolet lamp 54 to move up and down through the output end to expand the disinfection area. The through cavity 53 is provided to prevent rainwater from directly contacting the ultraviolet lamp 54, so as to protect the ultraviolet lamp 54.

[0078] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A rainwater treatment and filtration device for municipal water replenishment, comprising: Rainwater storage tank (1); The first water delivery pipe (17) is connected to a cyclone sand removal bucket (2) fixedly connected to one side of the rainwater storage tank (1); The second conveying pipe is connected to a sedimentation tank (3) fixedly connected to one side of the cyclone sand removal barrel (2); The third water delivery pipe (33) is connected to the electric flocculation tank (4) fixedly connected to one side of the sedimentation tank (3); The fourth water delivery pipe (43) is connected to a disinfection tank (5) fixedly connected to one side of the electric flocculation tank (4); The water storage tank (6) is connected to one side of the disinfection tank (5) through the water outlet well (52); A flocculation mechanism disposed inside the electric flocculation tank (4); The invention is characterized in that: the flocculation mechanism comprises a third motor (41) fixedly connected to the top of the electric flocculation tank (4), and the output shaft of the third motor (41) is rotatably connected to the electric flocculation tank (4) through a bearing; the output shaft of the third motor (41) is fixedly connected to a rotating rod (44), and a plurality of stirring paddles (45) are fixedly connected to the rotating rod (44); the top end of the rotating rod (44) is fixedly connected to a first bevel gear (47), and the bottom end of the first bevel gear (47) is rotatably connected to an L-shaped plate (471) through a bearing, and the L-shaped plate (471) is rotatably connected to a second bevel gear (472) through a rotating shaft; the top end of the rotating rod (44) is rotatably connected to a third bevel gear (473) through a bearing, and the third bevel gear (473) is rotatably connected to the third bevel gear (473). The bevel gear (473) is symmetrically arranged with the first bevel gear (47); the two ends of the second bevel gear (472) are respectively meshed with the first bevel gear (47) and the third bevel gear (473); the top of the third bevel gear (473) is fixedly connected with a cross plate (474), and the bottom of the cross plate (474) is evenly fixedly connected with four AL anode rods (475); the bottom of the rotating rod (44) is fixedly connected with a scraper rod (46), and the scraper rod (46) is in contact with the inner wall of the electric flocculation tank (4); one side of the electric flocculation tank (4) is connected and fixedly connected with a third sewage pipe (42), and a sewage valve is installed on the third sewage pipe (42); one end of the third sewage pipe (42) is fixedly connected with a third filter screen (48).

2. A rainwater treatment and filtration device for municipal water replenishment according to claim 1, characterized in that: The rainwater storage tank (1) is connected and fixedly connected to a interception well (11) at a side away from the vortex sand storage barrel; the interception well (11) is respectively provided with an upstream port (16) and a downstream port (15); a first gate plate (13) is provided on one side of the upstream port (16); a second gate plate (14) is provided on one side of the downstream port (15); two hydraulic cylinders (12) are fixedly connected to the top of the interception well (11); the output ends of the hydraulic cylinders (12) are respectively fixedly connected to the tops of the first gate plate (13) and the second gate plate (14); the first gate plate (13) and the second gate plate (14) are respectively slidably connected to the inner wall of the interception well (11) via guide rails; a first water level gauge (19) is provided in the rainwater storage tank (1).

3. A rainwater treatment and filtration device for municipal water replenishment according to claim 2, characterized in that: A first filter screen (172) is fixedly connected to one end of the first water pipe (17) close to the rainwater storage tank (1); an impeller (175) is rotatably connected to the first filter screen (172) via a rotating shaft; a scraper rod (171) is fixedly connected to the rotating shaft; a first motor (173) is fixedly connected to the rainwater storage tank (1); an output shaft of the first motor (173) is rotatably connected to the rainwater storage tank (1) via a bearing; a circular gate plate (174) is fixedly connected to the output shaft of the first motor (173); an area of ​​the circular gate plate (174) is larger than a cross-sectional area of ​​the first water pipe (17); a first sewage pipe (18) is connected and fixedly connected to the bottom end of the rainwater storage tank (1); a sewage pump is installed on the first sewage pipe (18).

4. A rainwater treatment and filtration device for municipal water replenishment according to claim 3, characterized in that: The bottom of the cyclone sand removal bucket (2) is connected to a sand collecting bucket (21) via a flange, a control valve is installed at the bottom of the sand collecting bucket (21), and four pillars (22) are fixedly connected to the bottom of the sand collecting bucket (21); a drainage ring plate (28) is fixedly connected to the inner wall of the cyclone sand removal bucket (2) via a connecting plate (27), and a plurality of magnetic blocks (29) are alternately arranged between the drainage ring plate (28) and the cyclone sand removal bucket (2); a transverse plate (25) is fixedly connected to the inner wall of the bottom end of the cyclone sand storage bucket, and a spiral blade (26) is rotatably connected to the transverse plate (25) via a rotating shaft.

5. A rainwater treatment and filtration device for municipal water replenishment according to claim 4, characterized in that: One end of the second water delivery pipe (23) extends into the cyclone sand removal bucket (2) and is fixedly connected to a second filter screen (24).

6. A rainwater treatment and filtration device for municipal water replenishment according to claim 5, characterized in that: The sedimentation tank (3) is arranged in an oblique concave shape, and a plurality of inclined plates (34) are symmetrically connected at both ends of the sedimentation tank (3); the inclined plates (34) are arranged below the second water delivery pipe (23) and the third water delivery pipe (33).

7. A rainwater treatment and filtration device for municipal water replenishment according to claim 6, characterized in that: Two guide rods (37) are fixedly connected to the inner wall of the bottom end of the sedimentation tank (3), and scrapers (35) are slidably connected to the two guide rods (37); a second motor (31) is fixedly connected to the outer wall of the sedimentation tank (3), and a reciprocating screw (36) is fixedly connected to the output shaft of the second motor (31), and both ends of the reciprocating screw (36) are rotatably connected to the sedimentation tank (3) through bearings, and the scraper (35) is threadedly connected to the reciprocating screw (36); one end of the sedimentation tank (3) is connected and fixedly connected to a second sewage pipe (32), and a sewage pump is installed on the second sewage pipe (32).

8. A rainwater treatment and filtration device for municipal water replenishment according to claim 7, characterized in that: An electric push rod (51) is fixedly connected to the top of the disinfection tank (5), the output end of the electric push rod (51) extends into the disinfection tank (5), and is fixedly connected to a lifting plate (55) through a mounting block, and a plurality of ultraviolet lamps (54) are mounted on the lifting plate (55); a mounting plate (56) is fixedly connected to the inner wall of the disinfection tank (5), and a plurality of through cavities (53) are fixedly connected to the mounting plate (56), and the ultraviolet lamps (54) are all arranged in the through cavities (53); a second water level gauge is fixedly connected to the bottom of the mounting plate (56); and the through cavities (53) are arranged in a transparent material.

9. A rainwater treatment and filtering device for municipal water replenishment according to claim 8, characterized in that: A third water level gauge (61) is fixedly connected to the inner wall of the top of the water reservoir (6), and a drainage pipe (62) is connected and fixedly connected to one side of the water reservoir (6), and a water valve is installed on the drainage pipe (62).

10. A method for treating rainwater for municipal water replenishment, applicable to a rainwater treatment and filtering device for municipal water replenishment as claimed in any one of claims 1 to 9, characterized in that: The method comprises the following steps: S1: Rainwater passes through the interception well (11) and enters the rainwater storage tank (1) for storage. When the water level of the rainwater storage tank (1) reaches the designed level, the interception well (11) is adjusted, and rainwater no longer flows into the rainwater storage tank (1); S2: The rainwater storage tank (1) adjusts the flow rate through the circular gate plate (174), and the rainwater passes through the first filter screen (172), the cyclone sand removal bucket (2), and the sedimentation tank (3) in sequence to deposit the sediment in the rainwater; S3: The rainwater passes through the electrocoagulation tank (4), which uses the AL anode rod (475) to dissolve and generate highly active polymorphic polyaluminum flocculants to aggregate and settle pollutant particles in the water; S4: Rainwater enters the disinfection pool (5), and after the disinfection pool (5) is full, the ultraviolet lamp (54) is turned on for disinfection; S5: After being disinfected in the disinfection tank (5), the rainwater enters the water storage tank (6) through the water outlet well (52). When the water level of the water storage tank (6) reaches the designed water level, the water outlet well (52) is closed, and no more treated rainwater flows into the water storage tank (6).

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