Village and town sewage collecting, treating and purifying device

Abstract

The invention is applicable to the technical field of sewage treatment, and provides a village and town sewage collecting, treating and purifying device which sequentially comprises a pre-impurity-removing unit, a deep treatment unit and a disinfection unit. The pre-impurity-removing unit intercepts impurities through an impurity filtering net pipe and is matched with rotary lifting of a spiral plate to improve the filtering efficiency; the deep treatment unit drives a rotary ingress pipe through a stirring assembly, and uniformly distributes medicines through a medicine outlet net pipe, so that the suspended matters are further removed through coagulating sedimentation and a deep filtration assembly; the disinfection unit adopts a synergistic effect of a gas disinfection assembly and an ultraviolet lamp to ensure thorough sterilization. The device is compact in structure and high in treatment efficiency, efficient impurity removal, deep purification and safe disinfection of village and town sewage can be achieved, the effluent quality is stable and reaches the standard, and secondary pollution is avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage treatment, and in particular relates to a township sewage collection, treatment and purification device. Background Art

[0002] With the acceleration of urbanization in my country and the in-depth improvement of rural living environments, rural sewage treatment has become a crucial component in improving the ecological environment and enhancing residents' quality of life. Due to the relatively dispersed population, incomplete drainage systems, and complex and fluctuating sewage composition in rural areas, traditional centralized sewage treatment models are difficult to adapt to their actual needs. Therefore, there is an urgent need for a compact, stable, efficient, and easy-to-manage and maintain miniaturized sewage treatment device to effectively collect and treat rural sewage on-site.

[0003] Currently, common wastewater treatment equipment relies on a single approach: physical filtration, chemical coagulation, or biological treatment. These processes present issues such as unstable treatment results, poor resistance to shock loads, and incomplete disinfection. In particular, during pretreatment, traditional screens or grit chambers fail to completely remove suspended solids, easily causing clogging of subsequent equipment. Furthermore, during advanced treatment and disinfection, conventional processes often struggle to effectively remove colloids and pathogenic microorganisms, making it difficult for effluent quality to consistently meet standards.

[0004] Therefore, in view of the above situation, there is an urgent need to develop an integrated, multifunctional, highly automated township sewage collection, treatment and purification device to overcome the shortcomings in current practical applications. Summary of the Invention

[0005] The purpose of the present invention is to provide a township sewage collection, treatment and purification device, aiming to solve the problems mentioned in the above background technology.

[0006] The present invention is implemented as follows: a township sewage collection, treatment and purification device comprises a pre-impurity removal unit, a deep treatment unit and a disinfection unit connected in sequence, wherein the pre-impurity removal unit and the disinfection unit are respectively provided with a sewage collection pipe and a clean water discharge pipe;

[0007] The pre-impurity removal unit includes a pre-impurity removal box, an inner side of which is provided with a filter mesh tube, the lower end of which is fixed to the inner bottom of the pre-impurity removal box, and an outer side of which is slidably provided with a spiral plate, the upper end of which is connected and fixed to a rotating disk via a first telescopic cylinder, and a first motor in transmission connection with the rotating disk is also fixed to the top of the pre-impurity removal box;

[0008] The deep treatment unit includes a deep treatment box, an annular baffle is fixed on the inner side of the deep treatment box, a water discharge tube is fixed on the lower side of the annular baffle, a rotary introduction pipe is provided on the inner side of the water discharge tube, a plurality of medicine discharge net pipes are circumferentially distributed and installed on the rotary introduction pipe on the upper side of the annular baffle, a stirring assembly is installed on the rotary introduction pipe on the inner side of the water discharge tube, a second motor for driving the rotary introduction pipe to rotate is provided on the top of the deep treatment box, and a medicine delivery assembly for delivering medicine to the medicine discharge net pipe through the rotary introduction pipe is also provided on the top of the deep treatment box; a deep filter assembly for filtering out suspended matter and colloidal substances in the sewage is also provided on the lower inner side of the deep treatment box;

[0009] The disinfection unit includes a disinfection box, on the inside of which a plurality of inner partitions are longitudinally distributed and fixedly installed, with drainage holes being provided through the inner partitions. An ultraviolet lamp is also installed on the inside of the disinfection box corresponding to the drainage holes. A gas disinfection component is also installed on the top of the disinfection box for ventilating and disinfecting the sewage transported by the deep treatment unit.

[0010] A further technical solution is that the filter mesh pipe is located in the middle of the inner side of the pre-impurity removal box, the upper end of the filter mesh pipe is sealed, the lower end of the filter mesh pipe is connected to the first water pipe, and the other end of the first water pipe is connected to the inner top of the deep processing box; the bottom of the pre-impurity removal box is also fixed with support legs; multiple first telescopic cylinders are evenly distributed circumferentially; the bottom of the pre-impurity removal box is also installed with a sedimentation cylinder, and the lower end of the sedimentation cylinder is removably provided with a sealing cover.

[0011] A further technical solution is that the water downcomer is located in the middle of the inner side of the deep treatment box, and the water downcomer is connected with the hole in the middle of the annular partition; a plurality of reinforcement rods are fixed circumferentially on the outer side of the water downcomer, and the outer ends of the reinforcement rods are fixedly connected to the inner wall of the deep treatment box; the stirring assembly includes a first stirring member and a second stirring member, and the first stirring member and the second stirring member are evenly staggered longitudinally on the rotating inlet pipe, and the first stirring member includes a first stirring rod evenly distributed circumferentially and with the outer end tilted upward, and the second stirring member includes a second stirring rod evenly distributed circumferentially and with the outer end tilted upward, the inclination angles of the first stirring rod and the second stirring rod are the same, and the first stirring rod and the second stirring rod of two adjacent groups of the first stirring member and the second stirring member are evenly staggered.

[0012] A further technical solution is that the rotating introduction tube is rotatably connected to the top of the deep processing box, the second motor is fixed to the top of the deep processing box through an angle bracket, the output end of the second motor is fixed with a first gear, and the rotating introduction tube is fixed with a second gear meshing with the first gear; the drug delivery assembly includes a plurality of medicine boxes fixed to the top of the deep processing box, a medicine delivery pump is fixed to the inner bottom of the medicine box, and the outlet of the medicine delivery pump is connected to a medicine tube, and the ends of the plurality of medicine tubes away from the medicine delivery pump are gathered and fixed together and rotatably connected to the upper end of the rotating introduction tube, and the medicine tubes are connected to the inner cavity of the medicine outlet network tube through the inner cavity of the rotating introduction tube.

[0013] A further technical solution is that the multiple medicine boxes are used to store liquid polyaluminum chloride and polyacrylamide respectively, the dosage of polyaluminum chloride is 20-50 mg / L, and the dosage of polyacrylamide is 1-5 mg / L; the medicine outlet network pipe is arranged horizontally, and the distance between the medicine outlet network pipe and the upper surface of the ring partition is less than 1 cm.

[0014] According to a further technical solution, the lower end of the water cylinder is also provided with an adjusting disk, a plurality of fixed blocks are fixed on the outer circumferential surface of the adjusting disk, a second telescopic cylinder is fixed on the upper side of the fixed block, and the cylinder body of the second telescopic cylinder is also fixedly connected to the outer wall of the water cylinder.

[0015] A further technical solution is that the deep filter assembly includes a bottom mesh plate fixed to the lower inner side of the deep treatment box, a plurality of support rods are fixed to the lower side of the bottom mesh plate, the lower ends of the support rods are fixed to the inner bottom of the deep treatment box, and a top mesh plate is also fixed on the inner side of the deep treatment box between the adjusting disk and the bottom mesh plate, and multiple layers of filler are filled between the top mesh plate and the bottom mesh plate; the multiple layers of filler include one or more combinations of activated carbon layer, anthracite layer, expanded clay layer, zeolite layer, walnut shell layer, magnetite sand layer and quartz sand layer.

[0016] A further technical solution is that the deep treatment tank and the disinfection tank are connected by a second water pipe, one end of the second water pipe is connected to the inner bottom of the deep treatment tank, and the other end of the second water pipe extends horizontally into the inner top of the disinfection tank. A water pump is also installed on the second water pipe; the clean water discharge pipe is connected to the inner bottom of the disinfection tank.

[0017] A further technical solution is that the gas disinfection assembly includes a disinfection gas tank, a solenoid valve, a disinfection air pipe and a gas nozzle. The disinfection gas tank is fixed to the top of the disinfection box, and a disinfection air pipe is installed at the outlet of the disinfection gas tank. A solenoid valve is also installed at the connection between the disinfection gas tank and the disinfection air pipe. The other end of the disinfection air pipe extends into the horizontal part of the second water pipe. The parts where the disinfection air pipe and the second water pipe are nested are coaxially arranged, and the parts where the disinfection air pipe and the second water pipe are nested are also equipped with several gas nozzles. The disinfection gas tank is used to store chlorine dioxide, ozone or chlorine, and the gas dosage in the sewage is 1-3 mg / L.

[0018] A further technical solution is that the drain holes opened on two adjacent inner partitions are staggered; the ultraviolet lamp corresponds vertically to the drain hole, and the ultraviolet lamp is fixed on the inner partition above the drain hole and the inner top of the disinfection box; the ultraviolet intensity of the ultraviolet lamp is 30-40mW / cm².

[0019] The present invention provides a township sewage collection, treatment and purification device, which has the following beneficial effects:

[0020] First, the sewage is input into the pre-impurity removal box of the pre-impurity removal unit. The filter mesh pipe can block suspended matter, sand and other impurities in the sewage, providing stable water inlet conditions for subsequent treatment. The first motor can drive the rotating disk to rotate, and the first telescopic cylinder can control the lifting and lowering of the spiral plate. The rotating and lifting characteristics of the spiral plate are utilized to ensure the water filtration efficiency of the filter mesh pipe and facilitate the sedimentation of impurities.

[0021] Secondly, through the setting of the deep treatment unit, the second motor drives the rotating inlet tube to rotate. At the same time, the drug delivery component can deliver the medicine to the medicine outlet network pipe through the rotating inlet tube, which is beneficial to the coagulation and sedimentation of sewage. The combination of the downcomer and the stirring component can make the sewage and the medicine fully react. The superimposed arrangement of the deep filtration component can further remove suspended matter and colloidal substances in the sewage, so that the effluent water quality reaches a higher standard.

[0022] Finally, through the setting of the disinfection unit, the gas disinfection component and the ultraviolet lamp cooperate to carry out disinfection, and the longitudinal distribution setting of the inner partition has a good disinfection effect and no secondary pollution.

[0023] In summary, the present invention has a compact structure and high treatment efficiency, and can achieve efficient impurity removal, deep purification and safe disinfection of township sewage. The effluent water quality is stable and meets the standards without secondary pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the overall structure of a township sewage collection, treatment and purification device provided by an embodiment of the present invention;

[0025] Figure 2 for Figure 1Schematic diagram of the enlarged structure of part A;

[0026] Figure 3 An axonometric view of the pre-removal tank portion of a township sewage collection, treatment and purification device provided by an embodiment of the present invention;

[0027] Figure 4 for Figure 3 Schematic diagram of the three-dimensional structure of the central rotating disk, the first telescopic cylinder, the spiral plate, and the filter mesh pipe;

[0028] Figure 5 An axonometric view of the deep treatment tank portion of the township sewage collection, treatment and purification device provided by an embodiment of the present invention;

[0029] Figure 6 for Figure 5 A schematic diagram of the three-dimensional structure of the rotating introduction tube and the components mounted thereon;

[0030] Figure 7 An axonometric view of the disinfection tank portion of a township sewage collection, treatment and purification device provided in an embodiment of the present invention;

[0031] Figure 8 for Figure 7 Schematic diagram of the enlarged structure of part B.

[0032] In the figure: 1-sewage collection pipe, 2-pre-cleaning box, 3-first motor, 4-medicine box, 5-second water pipe, 6-disinfection gas tank, 7-solenoid valve, 8-disinfection air pipe, 9-disinfection box, 10-clean water discharge pipe, 11-water pump, 12-maintenance door, 13-deep treatment box, 14-first water pipe, 15-support leg, 16-angle bracket, 17-second motor, 18-first gear, 19-second gear, 20-rotating inlet pipe, 21-medicine pipe, 22-rotating disk, 2 3-first telescopic cylinder, 24-spiral plate, 25-filter mesh tube, 26-sedimentation cylinder, 27-sealing cover, 28-ring partition, 29-reinforcement rod, 30-drug delivery pump, 31-second telescopic cylinder, 32-fixed block, 33-adjusting disk, 34-support rod, 35-bottom mesh plate, 36-filler, 37-top mesh plate, 38-water cylinder, 39-drug outlet mesh tube, 40-first stirring member, 41-second stirring member, 42-ultraviolet lamp, 43-inner partition, 44-water hole, 45-air nozzle. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0035] like Figure 1-8 As shown, a township sewage collection, treatment and purification device provided by one embodiment of the present invention includes a pre-impurity removal unit, a deep treatment unit and a disinfection unit connected in sequence. The pre-impurity removal unit and the disinfection unit are also provided with a sewage collection pipe 1 and a clean water discharge pipe 10 respectively;

[0036] The pre-impurity removal unit includes a pre-impurity removal box 2, an inner side of which is provided with a filter mesh tube 25, the lower end of which is fixed to the inner bottom of the pre-impurity removal box 2, and an outer side of which is slidably provided with a spiral plate 24, the upper end of which is connected and fixed to a rotating disk 22 via a first telescopic cylinder 23, and a first motor 3 which is transmission-connected to the rotating disk 22 is further fixed to the top of the pre-impurity removal box 2;

[0037] The deep treatment unit includes a deep treatment box 13, an annular baffle 28 is fixed to the inner side of the deep treatment box 13, a water discharge cylinder 38 is fixed to the lower side of the annular baffle 28, a rotary introduction pipe 20 is provided on the inner side of the water discharge cylinder 38, a plurality of medicine discharge net pipes 39 are circumferentially distributed and installed on the rotary introduction pipe 20 on the upper side of the annular baffle 28, a stirring assembly is installed on the rotary introduction pipe 20 inside the water discharge cylinder 38, a second motor 17 for driving the rotary introduction pipe 20 to rotate is provided on the top of the deep treatment box 13, and a medicine delivery assembly for delivering medicine to the medicine discharge net pipe 39 through the rotary introduction pipe 20 is also provided on the top of the deep treatment box 13; a deep filter assembly for filtering out suspended matter and colloidal substances in the sewage is also provided on the lower inner side of the deep treatment box 13;

[0038] The disinfection unit includes a disinfection box 9, and a plurality of inner partitions 43 are installed and fixed on the inner side of the disinfection box 9 in the longitudinal direction. Drain holes 44 are opened through the inner partitions 43. Ultraviolet lamps 42 are also installed on the inner side of the disinfection box 9 corresponding to the drain holes 44. A gas disinfection component is also installed on the top of the disinfection box 9 for ventilating and disinfecting the sewage transported by the deep treatment unit.

[0039] In the embodiment of the present invention, first, the sewage is input into the pre-impurity removal box 2 of the pre-impurity removal unit. The impurities such as suspended matter and sand particles in the sewage can be blocked by the filter mesh pipe 25, providing stable water inlet conditions for subsequent treatment. The first motor 3 can drive the rotating disk 22 to rotate, and the first telescopic cylinder 23 can control the lifting and lowering of the spiral plate 24. The rotation and lifting characteristics of the spiral plate 24 are utilized to ensure the water filtering efficiency of the filter mesh pipe 25 and facilitate the sedimentation of impurities.

[0040] Secondly, through the setting of the deep treatment unit, the second motor 17 drives the rotating inlet tube 20 to rotate, and at the same time, the drug delivery component can deliver the medicine to the drug outlet network pipe 39 through the rotating inlet tube 20, which is beneficial to the coagulation and sedimentation of the sewage. The combination of the water cylinder 38 and the stirring component can make the sewage and the medicine fully react, and the arrangement of the superimposed deep filtration component can further remove suspended matter and colloidal substances in the sewage, so that the water quality of the outlet reaches a higher standard.

[0041] Finally, through the setting of the disinfection unit, the gas disinfection component and the ultraviolet lamp 42 cooperate to perform disinfection, and the longitudinal distribution setting of the inner partition 43 has a good disinfection effect and no secondary pollution.

[0042] In summary, the present invention has a compact structure and high treatment efficiency, and can achieve efficient impurity removal, deep purification and safe disinfection of township sewage. The effluent water quality is stable and meets the standards without secondary pollution.

[0043] like Figure 1 、 3 As shown in Figures 4 and 5, as a preferred embodiment of the present invention, the filter mesh pipe 25 is located in the middle of the inner side of the pre-cleaning tank 2. The upper end of the filter mesh pipe 25 is sealed, and the lower end of the filter mesh pipe 25 is connected to the first water pipe 14. The other end of the first water pipe 14 is connected to the inner top of the deep treatment tank 13. In order to elevate the pre-cleaning tank 2, the bottom of the pre-cleaning tank 2 is also fixed with support legs 15, which facilitate the transportation of sewage in the pre-cleaning tank 2 to the deep treatment tank 13 through the first water pipe 14. The filter mesh pipe 25 is made of stainless steel, and the aperture can be arranged as required.

[0044] The first telescopic cylinders 23 are evenly distributed around the circumference to provide reliable support for the spiral plate 24 . A sedimentation cylinder 26 is also installed at the bottom of the pre-impurity removal box 2 , and a detachable sealing cover 27 is provided at the lower end of the sedimentation cylinder 26 .

[0045] The spiral plate 24 can be driven to rotate forward and reverse by the first motor 3 as needed, so that the spiral plate 24 can lift or lower the sewage around the filter mesh pipe 25 to ensure the sewage removal effect; the first telescopic cylinder 23 can change the position of the spiral plate 24, and the spiral plate 24 can scrape off impurities adhered to the surface of the filter mesh pipe 25, thereby ensuring the water filtering efficiency of the filter mesh pipe 25 and facilitating the sedimentation of impurities.

[0046] like Figure 1-2 As shown in Figures 5-6, as a preferred embodiment of the present invention, the water down cylinder 38 is located in the middle of the inner side of the deep treatment box 13, and the water down cylinder 38 is connected to the hole in the middle of the annular partition 28; in order to improve the stability of the water down cylinder 38, a plurality of reinforcement rods 29 are circumferentially distributed and fixed on the outer side of the water down cylinder 38, and the outer ends of the reinforcement rods 29 are fixedly connected to the inner wall of the deep treatment box 13.

[0047] The rotating introduction tube 20 is rotatably connected to the top of the deep processing box 13. The second motor 17 is fixed to the top of the deep processing box 13 through the angle bracket 16. The output end of the second motor 17 is fixed with a first gear 18. The rotating introduction tube 20 is fixed with a second gear 19 that is meshed with the first gear 18. When driven by the second motor 17, the rotating introduction tube 20 can be driven to rotate by the transmission of the first gear 18 and the second gear 19.

[0048] The drug delivery assembly includes multiple medicine boxes 4 fixed on the top of the deep processing box 13, and a medicine delivery pump 30 is fixed to the inner bottom of the medicine box 4. The outlet of the medicine delivery pump 30 is connected to the medicine tube 21. The multiple medicine tubes 21 are fixed together at one end away from the medicine delivery pump 30 and are rotatably connected to the upper end of the rotating introduction tube 20. The medicine tube 21 is connected to the inner cavity of the medicine discharge network tube 39 through the inner cavity of the rotating introduction tube 20; the medicine discharge network tube 39 is horizontally arranged, and the distance between the medicine discharge network tube 39 and the upper surface of the annular partition 28 is less than 1 cm. It is sufficient for the medicine discharge network tube 39 to be able to discharge the medicine evenly, and no limitation is imposed.

[0049] Preferably, the multiple reagent tanks 4 are used to store liquid polyaluminium chloride (PAC) and polyacrylamide (PAM), respectively. The dosage of PAC is 20-50 mg / L, and the dosage of PAM is 1-5 mg / L. During use, the PAC and PAM can be pre-dissolved so that they can be directly and quantitatively added to the sewage treatment system via the drug delivery pump 30 and the drug tube 21.

[0050] The stirring assembly includes a first stirring member 40 and a second stirring member 41, which are evenly staggered longitudinally on the rotating inlet pipe 20, and the first stirring member 40 includes a first stirring rod that is evenly distributed circumferentially and the outer end of which is inclined upward, and the second stirring member 41 includes a second stirring rod that is evenly distributed circumferentially and the outer end of which is inclined upward, and the inclination angles of the first stirring rod and the second stirring rod are the same. The first stirring rods and the second stirring rods of two adjacent groups of the first stirring members 40 and the second stirring members 41 are evenly staggered, so that the stirring assembly can reliably mix sewage and chemicals.

[0051] Preferably, the lower end of the water discharge cylinder 38 is also provided with an adjusting disk 33, and a plurality of fixed blocks 32 are fixed on the outer circumferential surface of the adjusting disk 33. A second telescopic cylinder 31 is fixed on the upper side of the fixed block 32, and the cylinder body of the second telescopic cylinder 31 is also fixedly connected to the outer wall of the water discharge cylinder 38. The adjusting disk 33 is controlled to rise and fall by the second telescopic cylinder 31, which can change the distance between the adjusting disk 33 and the lower end of the water discharge cylinder 38, change the drainage efficiency, and thereby improve the reliability of coagulation and sedimentation.

[0052] The deep filter assembly includes a bottom mesh plate 35 fixed to the lower inner portion of the deep treatment tank 13. Multiple support rods 34 are fixed to the lower side of the bottom mesh plate 35. The lower ends of the support rods 34 are fixed to the inner bottom of the deep treatment tank 13. A top mesh plate 37 is also fixed to the inner side of the deep treatment tank 13 between the adjustment disk 33 and the bottom mesh plate 35. Multiple layers of filler 36 are filled between the top mesh plate 37 and the bottom mesh plate 35. The bottom mesh plate 35 only needs to block the filler 36, and the top mesh plate 37 only needs to ensure the stability of the filler 36. A maintenance door 12 is also provided on the side wall of the deep treatment tank 13 corresponding to the filler 36. The deep filter assembly can further treat the coagulated and settled wastewater to remove suspended matter and colloidal substances in the wastewater.

[0053] Preferably, the multi-layer filler 36 includes one or more combinations of activated carbon layers, anthracite layers, ceramsite layers, zeolite layers, walnut shell layers, magnetite sand layers and quartz sand layers. The particle size and thickness of each substance can be arranged as needed, which can further remove suspended matter and colloidal substances in sewage.

[0054] like Figure 1 、 7 As shown in Figure 8, as a preferred embodiment of the present invention, the deep treatment box 13 and the disinfection box 9 are connected by a second water pipe 5, one end of the second water pipe 5 is connected to the inner bottom of the deep treatment box 13, and the other end of the second water pipe 5 extends horizontally into the inner top of the disinfection box 9. A water pump 11 is also installed on the second water pipe 5, and the sewage can be lifted and transported by the water pump 11.

[0055] The gas disinfection assembly includes a disinfection gas tank 6, a solenoid valve 7, a disinfection air pipe 8, and a gas nozzle 45. The disinfection gas tank 6 is fixed to the top of the disinfection box 9. The disinfection air pipe 8 is installed at the outlet of the disinfection gas tank 6. The solenoid valve 7 is also installed at the connection between the disinfection gas tank 6 and the disinfection air pipe 8. The other end of the disinfection air pipe 8 extends into the horizontal part of the second water pipe 5. The disinfection air pipe 8 and the second water pipe 5 are partially coaxially arranged. The disinfection air pipe 8 and the second water pipe 5 are also installed with a plurality of gas nozzles 45 on the disinfection air pipe 8. Sewage is transported to the second water pipe 5 by the water pump 11. Opening the solenoid valve 7 allows gas to be transported to the disinfection air pipe 8 and discharged through the gas nozzle 45. The disinfection air pipe 8 and the second water pipe 5 are partially coaxially nested, ensuring the gas disinfection effect.

[0056] Preferably, the disinfecting gas tank 6 is used to store chlorine dioxide, ozone or chlorine, and the amount of gas added to the sewage is 1-3 mg / L to ensure that the total bacterial count in the effluent meets the discharge standard.

[0057] The drain holes 44 opened on the two adjacent inner partitions 43 are staggered, which can extend the residence time of sewage in the disinfection box 9, thereby improving the disinfection effect; the ultraviolet lamp 42 vertically corresponds to the drain hole 44, and the ultraviolet lamp 42 is fixed on the inner partition 43 on the upper side of the drain hole 44 and the inner top of the disinfection box 9, ensuring the disinfection effect of the ultraviolet lamp 42 on the sewage.

[0058] Preferably, the ultraviolet intensity of the ultraviolet lamp 42 is 30-40 mW / cm².

[0059] The clean water discharge pipe 10 is communicated with the inner bottom of the disinfection box 9 , which facilitates the discharge of treated sewage through the clean water discharge pipe 10 .

[0060] Tests have shown that this device achieves a suspended solids (SS) removal rate exceeding 95%, a chemical oxygen demand (COD) removal rate of 85%-92%, a total phosphorus (TP) removal rate of 90%-95%, and an E. coli inactivation rate exceeding 99.9%. The effluent quality meets Level A standards in the Pollutant Discharge Standard for Municipal Wastewater Treatment Plants (GB 18918-2002).

[0061] The above embodiment of the present invention provides a township sewage collection, treatment and purification device, the working principle of which is summarized as follows:

[0062] The sewage is continuously treated in three stages: pre-impurity removal unit → deep treatment unit → disinfection unit, ultimately achieving efficient impurity removal, deep purification and thorough disinfection, ensuring that the effluent quality meets the standards for discharge or reuse.

[0063] 1) Pre-cleaning Unit (Pre-cleaning Tank 2): Sewage enters pre-cleaning tank 2 through sewage collection pipe 1. Sewage flows through a centrally located filter mesh pipe 25, which effectively intercepts large impurities such as suspended solids and sand. A first motor 3 drives a rotating disc 22, which rotates a spiral plate 24. A first telescopic cylinder 23 controls the plate's elevation. This "rotation and elevation" action of the spiral plate 24 increases water flow disturbance to prevent clogging while scraping impurities from the surface of the filter mesh pipe 25, encouraging them to settle into a settling drum 26 at the bottom. Impurities can be regularly removed through a sealing cap 27. The filtered water is delivered to the advanced treatment unit via a first water delivery pipe 14.

[0064] 2) Deep Treatment Unit (Deep Treatment Tank 13): A second motor 17 drives the rotating inlet pipe 20. Chemicals (such as PAC and PAM) from multiple chemical tanks 4 are delivered to the rotating inlet pipe 20 via a drug delivery pump 30 and a drug tube 21. The chemicals are evenly distributed during rotation and sprayed into the wastewater through a drug outlet pipe 39. A stirring assembly (alternating first and second stirring elements 40 and 41) thoroughly mixes the chemicals and wastewater, forming flocs. The coagulated wastewater is drained at a controlled rate by an adjustment disk 33 and a second telescopic cylinder 31, enhancing sedimentation. The settled wastewater enters the deep filtration assembly. Filler 36 (such as quartz sand) is placed between the top and bottom mesh plates 37 and 35 to further remove any remaining suspended matter and colloids. The filler 36 can be replaced or cleaned through the maintenance door 12.

[0065] 3) Disinfection Unit (Disinfection Tank 9): Advanced treated sewage is pumped into disinfection tank 9 via second water pipe 5 by water pump 11. During this process, chlorine dioxide gas flows from disinfection gas tank 6, controlled by solenoid valve 7, into disinfection gas pipe 8 nested within second water pipe 5. Chlorine dioxide is released into the water through nozzle 45, achieving initial disinfection. After entering disinfection tank 9, the sewage passes through staggered internal baffles 43 and drain holes 44, extending its residence time. Ultraviolet lamps 42, aligned vertically with each drain hole 44, provide high-intensity irradiation and disinfection. The disinfected, purified water exits the system through purified water outlet pipe 10.

[0066] In summary, the present invention achieves efficient, stable and safe purification of township sewage through a multi-stage treatment method of pre-removal of impurities, coagulation and sedimentation, deep filtration and gas-ultraviolet composite disinfection, ensuring that the effluent water quality meets high-standard discharge requirements.

[0067] The control, model, and circuit connection of each component are not specifically limited and can be flexibly configured in actual applications. The circuits, electronic components, and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this invention does not involve improvements to the software and methods.

[0068] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A township sewage collection, treatment and purification device, comprising a pre-impurity removal unit, a deep treatment unit and a disinfection unit connected in sequence, wherein the pre-impurity removal unit and the disinfection unit are respectively provided with a sewage collection pipe (1) and a clean water discharge pipe (10), characterized in that: The pre-impurity removal unit comprises a pre-impurity removal box (2), a filter mesh tube (25) is provided on the inner side of the pre-impurity removal box (2), the lower end of the filter mesh tube (25) is fixed to the inner bottom of the pre-impurity removal box (2), a spiral plate (24) is slidably provided on the outer side of the filter mesh tube (25), and the upper end of the spiral plate (24) is connected and fixed to the rotating disk (22) via a first telescopic cylinder (23); a first motor (3) in transmission connection with the rotating disk (22) is also fixed on the top of the pre-impurity removal box (2); The deep treatment unit comprises a deep treatment box (13), an annular baffle (28) is fixed on the inner side of the deep treatment box (13), a water discharge tube (38) is fixed on the lower side of the annular baffle (28), a rotating inlet pipe (20) is provided on the inner side of the water discharge tube (38), a plurality of medicine outlet network pipes (39) are circumferentially distributed and installed on the rotating inlet pipe (20) on the upper side of the annular baffle (28), and a stirring assembly is installed on the rotating inlet pipe (20) on the inner side of the water discharge tube (38); a second motor (17) for driving the rotating inlet pipe (20) to rotate is provided on the top of the deep treatment box (13); a medicine delivery assembly for delivering medicine to the medicine outlet network pipe (39) through the rotating inlet pipe (20) is also provided on the top of the deep treatment box (13); a deep filter assembly for filtering out suspended matter and colloidal substances in sewage is also provided on the lower inner side of the deep treatment box (13); The disinfection unit comprises a disinfection box (9), a plurality of inner partitions (43) are longitudinally distributed and fixedly mounted on the inner side of the disinfection box (9), and drainage holes (44) are provided through the inner partitions (43); an ultraviolet lamp (42) is also mounted on the inner side of the disinfection box (9) corresponding to the drainage holes (44); and a gas disinfection component for ventilating and disinfecting sewage transported by the deep treatment unit is also mounted on the top of the disinfection box (9).

2. The township sewage collection, treatment and purification device according to claim 1, characterized in that: The impurity filtering net pipe (25) is located in the middle of the inner side of the pre-impurity removal box (2), the upper end of the impurity filtering net pipe (25) is sealed, the lower end of the impurity filtering net pipe (25) is connected to the first water pipe (14), and the other end of the first water pipe (14) is connected to the inner top of the deep treatment box (13); The bottom of the pre-cleaning box (2) is also fixed with supporting legs (15); A plurality of the first telescopic cylinders (23) are evenly distributed in the circumferential direction; A sedimentation cylinder (26) is also installed at the bottom of the pre-impurity removal box (2), and a sealing cover (27) is detachably provided at the lower end of the sedimentation cylinder (26).

3. The township sewage collection, treatment and purification device according to claim 1, characterized in that: The water downtube (38) is located in the middle of the inner side of the deep treatment box (13), and the water downtube (38) is in communication with the hole in the middle of the annular partition (28); A plurality of reinforcement rods (29) are circumferentially distributed and fixed on the outer side of the water discharge cylinder (38), and the outer ends of the reinforcement rods (29) are fixedly connected to the inner wall of the deep treatment box (13); The stirring assembly comprises a first stirring member (40) and a second stirring member (41), wherein the first stirring member (40) and the second stirring member (41) are evenly staggered longitudinally on the rotating inlet tube (20), and the first stirring member (40) comprises a first stirring rod evenly distributed in the circumference and with an outer end inclined upward, and the second stirring member (41) comprises a second stirring rod evenly distributed in the circumference and with an outer end inclined upward, and the inclination angles of the first stirring rod and the second stirring rod are the same; the first stirring rod and the second stirring rod of two adjacent groups of the first stirring member (40) and the second stirring member (41) are evenly staggered.

4. The township sewage collection, treatment and purification device according to claim 1 or 3, characterized in that: The rotating inlet pipe (20) is rotatably connected to the top of the deep processing box (13); The second motor (17) is fixed to the top of the deep processing box (13) through the angle bracket (16); a first gear (18) is fixed to the output end of the second motor (17); and a second gear (19) meshingly connected with the first gear (18) is fixed to the rotating inlet tube (20); The drug delivery assembly comprises a plurality of drug boxes (4) fixed to the top of the deep processing box (13), a drug delivery pump (30) being fixed to the inner bottom of the drug box (4), and a drug delivery tube (21) being connected to the outlet of the drug delivery pump (30); the ends of the plurality of drug tubes (21) away from the drug delivery pump (30) are gathered together and fixed and rotatably connected to the upper end of the rotating introduction tube (20), and the drug tubes (21) are connected to the inner cavity of the drug outlet network tube (39) through the inner cavity of the rotating introduction tube (20).

5. The township sewage collection, treatment and purification device according to claim 4, characterized in that: The plurality of reagent boxes (4) are used to store liquid polyaluminium chloride and polyacrylamide respectively, the dosage of polyaluminium chloride is 20-50 mg / L, and the dosage of polyacrylamide is 1-5 mg / L; The medicine outlet network pipe (39) is arranged horizontally, and the distance between the medicine outlet network pipe (39) and the upper surface of the annular partition (28) is less than 1 cm.

6. The township sewage collection, treatment and purification device according to claim 1 or 3, characterized in that: The lower end of the water discharge cylinder (38) is also provided with an adjusting disk (33). A plurality of fixing blocks (32) are fixedly distributed circumferentially on the outer side of the adjusting disk (33). A second telescopic cylinder (31) is fixed on the upper side of the fixing block (32). The cylinder body of the second telescopic cylinder (31) is also fixedly connected to the outer wall of the water discharge cylinder (38).

7. The township sewage collection, treatment and purification device according to claim 6, characterized in that: The deep filter assembly comprises a bottom mesh plate (35) fixed to the lower inner portion of the deep treatment box (13); a plurality of support rods (34) are fixed to the lower side of the bottom mesh plate (35); and the lower ends of the support rods (34) are fixed to the inner bottom of the deep treatment box (13); A top mesh plate (37) is fixed between the regulating disk (33) and the bottom mesh plate (35) on the inner side of the deep processing box (13), and multiple layers of fillers (36) are filled between the top mesh plate (37) and the bottom mesh plate (35); The multi-layer filler (36) includes one or more combinations of an activated carbon layer, an anthracite layer, a ceramsite layer, a zeolite layer, a walnut shell layer, a magnetite sand layer, and a quartz sand layer.

8. The township sewage collection, treatment and purification device according to claim 1, characterized in that: The deep treatment box (13) and the disinfection box (9) are connected via a second water pipe (5), one end of the second water pipe (5) is connected to the inner bottom of the deep treatment box (13), and the other end of the second water pipe (5) extends horizontally into the inner top of the disinfection box (9). A water pump (11) is also installed on the second water pipe (5); The clean water discharge pipe (10) is in communication with the inner bottom of the disinfection box (9).

9. The township sewage collection, treatment and purification device according to claim 8, characterized in that: The gas sterilization assembly comprises a sterilization gas tank (6), a solenoid valve (7), a sterilization air pipe (8) and a gas nozzle (45); The disinfecting gas tank (6) is fixed to the top of the disinfecting box (9), and a disinfecting gas pipe (8) is installed at the outlet of the disinfecting gas tank (6). A solenoid valve (7) is also installed at the connection between the disinfecting gas tank (6) and the disinfecting gas pipe (8), and the other end of the disinfecting gas pipe (8) extends into the horizontal part of the second water supply pipe (5); The nested portion of the sterilizing air pipe (8) and the second water pipe (5) is coaxially arranged, and the nested portion of the sterilizing air pipe (8) and the second water pipe (5) is further provided with a plurality of air nozzles (45) on the sterilizing air pipe (8); The disinfection gas tank (6) is used to store chlorine dioxide, ozone or chlorine, and the amount of gas added to the sewage is 1-3 mg / L.

10. The township sewage collection, treatment and purification device according to claim 8 or 9, characterized in that: The drain holes (44) opened on two adjacent inner partitions (43) are staggered; The ultraviolet lamp (42) is vertically aligned with the drain hole (44), and the ultraviolet lamp (42) is fixed to the inner partition (43) on the upper side of the drain hole (44) and the inner top of the disinfection box (9); The ultraviolet intensity of the ultraviolet lamp (42) is 30-40 mW / cm².

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