A sewage treatment device

Abstract

The invention discloses a sewage treatment device, comprising: a primary filter box, the top of which is inclined and provided with a large filter; a circulating filter assembly, the circulating filter assembly being placed at the bottom of the primary filter box, the circulating filter assembly comprising a reciprocating filter tube fixedly connected to the bottom of the primary filter box, a diverter tube fixedly connected to the side of the reciprocating filter tube, a No. 1 filter screen being arranged at the connection between the diverter tube and the reciprocating filter tube, a diverter baffle for sealing the reciprocating filter tube being slidably connected to the middle of the reciprocating filter tube, and a No. 2 filter screen being installed at the bottom of the reciprocating filter tube. The beneficial effects of the invention are as follows: through the coordinated action of the spring, the pushing frame and the diverter baffle of the driving part, the automatic circulating cleaning of the No. 1 filter screen and the No. 2 filter screen is realized without stopping the machine for operation, and under the action of linkage, the filtered impurities can be cleaned and processed from the filtering system to prevent them from clogging the filter screen, thereby improving the filtering efficiency and continuity.

Description

Technical Field

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

[0002] Sewage treatment plays a vital role in the process of environmental pollution control. As a key link in environmental governance, sewage treatment is not only related to the reuse and protection of water resources, but also directly affects the health of the ecological environment and the quality of human life. Therefore, the development and application of sewage treatment technology is particularly important. Through scientific sewage treatment technology, we can effectively remove harmful substances in sewage and reduce its pollution to the environment. At the same time, we can realize the recycling of water resources and save precious water resources.

[0003] In the sewage treatment process, filters are an indispensable part of filtering impurities. However, when impurities accumulate to a certain extent, the filter will be blocked, affecting its filtering effect. At this time, the filter needs to be cleaned or replaced. At present, this operation mostly relies on manual processing, and the corresponding filtering work usually needs to be stopped during this process. Stopping the filtering work means that the treatment capacity of the sewage treatment plant is temporarily reduced, which will cause sewage to accumulate in the plant and cannot be treated in time, thus affecting the overall treatment efficiency. Manual cleaning or replacement of filters requires a lot of manpower and time. Summary of the invention

[0004] The object of the present invention is to provide a sewage treatment device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a sewage treatment device, comprising:

[0006] Primary filter box, the top of the primary filter box is inclined and equipped with a large filter screen;

[0007] A circulating filter assembly, the circulating filter assembly is placed at the bottom of the primary filter box, the circulating filter assembly includes a reciprocating filter tube fixedly connected to the bottom of the primary filter box, a shunt tube is fixedly connected to the side of the reciprocating filter tube, a No. 1 filter screen is provided at the connection between the shunt tube and the reciprocating filter tube, a shunt baffle for sealing the reciprocating filter tube is slidably connected to the middle of the reciprocating filter tube, a No. 2 filter screen is installed at the bottom of the reciprocating filter tube, a pusher frame is slidably connected to the top of the No. 2 filter screen for collecting impurities filtered by the No. 2 filter screen, and a driving part for driving the shunt baffle and the pusher frame to slide back and forth is installed on one side of the reciprocating filter tube;

[0008] The driving part includes a No. 2 reciprocating screw and a driving plate threadedly installed on the outside thereof. During filtering, the driving plate drives the diverter baffle to block the reciprocating filter tube, and the water is filtered through the No. 1 filter. When the diverter baffle contacts the inner wall of the reciprocating filter tube, the driving plate continues to move forward to push the pushing frame out of the reciprocating filter tube, and the pushing frame pushes out the impurities filtered by the No. 2 filter.

[0009] Preferably, a cleaning rake which reciprocates along the middle of the large filter is provided at the bottom of the large filter, for removing impurities filtered by the large filter; a No. 1 reciprocating screw which drives the cleaning rake to move is inclinedly arranged inside the primary filter box, the No. 1 reciprocating screw is threadedly connected to the cleaning rake, a No. 1 motor is fixedly connected to the outer side of the primary filter box, and the output end of the No. 1 motor is fixedly connected to the No. 1 reciprocating screw; when the cleaning rake moves to the bottom of the large filter, the top of the cleaning rake is located below the large filter; when the cleaning rake moves to the top of the large filter, the cleaning rake passes through the middle of the large filter.

[0010] Preferably, the driving unit also includes a support frame fixedly connected to the side of the reciprocating filter tube, the No. 2 reciprocating screw is rotatably connected to the middle part of the support frame, one end of the support frame is fixedly connected to the No. 2 motor, and the output end of the No. 2 motor is fixedly connected to the No. 2 reciprocating screw.

[0011] Preferably, a slag outlet slidably connected to a pushing frame is provided on one side of the reciprocating filter tube, and two No. 1 push rods are fixedly connected to the other side of the reciprocating filter tube, and the driving plate and the reciprocating filter tube are both slidably connected to the No. 1 push rod, and a limiting plate is fixedly connected to the outer side of the reciprocating filter tube, and a No. 1 spring is sleeved on the outer side of the No. 1 push rod and located between the reciprocating filter tube and the limiting plate, and the elastic force of the No. 1 spring is greater than the friction force between the No. 1 push rod and the driving plate.

[0012] Preferably, a No. 2 push rod is fixedly connected to the end of the diverter baffle, and the No. 2 push rod passes through the middle of the driving plate and is slidably connected to the driving plate. A No. 2 spring is sleeved on the outside of the No. 2 push rod and located between the diverter baffle and the driving plate. The elastic force of the No. 2 spring is greater than the friction force between the diverter baffle and the reciprocating filter tube.

[0013] Preferably, a sedimentation tank is fixedly connected to the bottom of the reciprocating filter tube, and the reciprocating filter tube and the diversion tube are both connected to the sedimentation tank. A screw conveyor is installed on one side of the sedimentation tank and below the slag outlet, and an extrusion box is installed below the outlet of the screw conveyor. A feed port is provided at the top of the No. 2 filter screen, and an extrusion push plate is slidably connected to the inside of the extrusion box, and a sealing plate for sealing the feed port is fixed to the top of the extrusion push plate, and one end of the extrusion box is fixedly connected to a hydraulic cylinder, and the output end of the hydraulic cylinder is fixedly connected to the extrusion push plate.

[0014] Preferably, the bottom water outlet of the extrusion box and the end of the extrusion box facing away from the hydraulic cylinder are fixedly connected with an extrusion mesh plate, one side of the extrusion mesh plate is slidably connected with a lifting mesh plate, the top of the lifting mesh plate is fixedly connected with a double-axis cylinder, and the output end of the double-axis cylinder is fixedly connected to the top of the extrusion box.

[0015] Preferably, one side of the sedimentation tank is fixedly connected to the treatment tank, a filter tank is provided inside the treatment tank, a disinfection tank is provided on one side of the filter tank, a deodorization tank is provided on the side of the disinfection tank away from the filter tank, filter cotton is provided inside the filter tank, and an activated carbon net is provided inside the deodorization tank.

[0016] Preferably, multiple groups of support rods are fixedly connected to the upper and lower parts of the disinfection pool, the bottom of the support rod is rotatably connected to a rotating plate, the middle part of the rotating plate is connected to the support rod through a No. 3 spring, and ultraviolet sterilization lamps are installed on the top of the rotating plate and the inside of the disinfection pool.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the primary filter box cooperates with the large filter screen to effectively filter out floating objects and large-volume garbage in the sewage, and the motor drives the cleaning rake to clean it reciprocatingly, reducing manual intervention; through the cooperation of the spring, the push frame and the diversion baffle of the driving part, the automatic cycle cleaning of the No. 1 filter screen and the No. 2 filter screen is realized without stopping the operation, and under the action of linkage, the filtered impurities can be cleaned and processed from the filtration system to prevent them from clogging the filter screen, thereby improving the efficiency and continuity of its filtration; the filtered impurities are sent to the extrusion box through a screw conveyor for pressure filtration treatment, thereby reducing the volume and stabilizing the impurities, which is convenient for subsequent treatment and resource utilization; the sewage undergoes multiple treatment steps of primary filtration, reciprocating filtration, sedimentation, filter cotton filtration, disinfection and deodorization, which significantly improves the water quality; the use of ultraviolet sterilization lamps and activated carbon nets effectively kills microorganisms in the water and removes odors, thereby improving the safety and availability of water. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the position structure of the extrusion box of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the cleaning rake of the present invention;

[0021] Figure 4 It is a structural schematic diagram of the second spring of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the shunt pipe of the present invention;

[0023] Figure 6It is a structural schematic diagram of the driving plate of the present invention;

[0024] Figure 7 It is a schematic diagram of the internal structure of the extrusion box of the present invention;

[0025] Figure 8 It is a schematic diagram of the internal structure of the disinfection tank of the present invention;

[0026] Fig. 9 It is an enlarged view of point A of the present invention.

[0027] In the figure: 1. Primary filter box; 2. Large filter screen; 3. Cleaning rake; 4. No. 1 reciprocating screw; 5. No. 1 motor; 6. Reciprocating filter tube; 7. Slag outlet; 8. Diverter tube; 9. No. 1 filter screen; 10. Support frame; 11. No. 2 motor; 12. No. 1 push rod; 13. Drive plate; 14. Limit plate; 15. No. 2 reciprocating screw; 16. No. 1 spring; 17. Diverter baffle; 18. No. 2 push rod; 19. No. 2 spring Spring; 20, push frame; 21, filter screen No. 2; 22, sedimentation tank; 23, screw conveyor; 24, extrusion box; 25, hydraulic cylinder; 26, extrusion push plate; 27, blocking plate; 28, double-axis cylinder; 29, lifting mesh plate; 30, extrusion mesh plate; 31, filter tank; 32, filter cotton; 33, support rod; 34, rotating plate; 35, spring No. 3; 36, ultraviolet germicidal lamp; 37, disinfection tank; 38, deodorization tank. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1 , 2, 3, 4, 5, 6, 7, 8, and 9, the present invention provides a technical solution: a sewage treatment device, comprising: a large filter screen 2 is fixedly connected to the top of a primary filter box 1 at an angle, and the large filter screen 2 is a plastic plate with a plurality of strip holes in the middle; a circulating filter assembly is placed at the bottom of the primary filter box 1, and the circulating filter assembly comprises a reciprocating filter tube 6 fixedly connected to the bottom of the primary filter box 1, the reciprocating filter tube 6 is connected to the primary filter box 1, the bottom of the primary filter box 1 is an inclined structure, and the bottom of the inclined structure is connected to the reciprocating filter tube 6, a shunt pipe 8 is fixedly connected to the side of the reciprocating filter tube 6, and the shunt pipe 8 is a bent pipe structure, one end of the shunt pipe 8 is connected to the reciprocating filter tube 6, and the other end of the shunt pipe 8 is connected to a sedimentation tank 22, a No. 1 filter screen 9 is provided at the connection between the shunt pipe 8 and the reciprocating filter tube 6, and a shunt baffle 17 for sealing the reciprocating filter tube 6 is slidably connected to the middle of the reciprocating filter tube 6, and the shunt baffle 17 for sealing the reciprocating filter tube 6 is slidably connected to the middle of the reciprocating filter tube 6. The outer side of the flow baffle 17 is wrapped with a rubber pad, and a No. 2 filter screen 21 is installed at the bottom of the reciprocating filter tube 6. The top of the No. 2 filter screen 21 is slidably connected with a push frame 20, and a sealing ring is provided on one side of the push frame 20. When the push frame 20 is placed inside the reciprocating filter tube 6, the reciprocating filter tube 6 can be sealed to prevent it from leaking. It is used to collect impurities filtered by the No. 2 filter screen 21. A driving part that drives the diverter baffle 17 and the push frame 20 to slide back and forth is installed on one side of the reciprocating filter tube 6; the driving part includes a No. 2 reciprocating screw 15 and a driving plate 13 threadedly installed on its outer side. During filtering, the driving plate 13 drives the diverter baffle 17 to block the reciprocating filter tube 6, and water is filtered through the No. 1 filter screen 9. When the diverter baffle 17 contacts the inner wall of the reciprocating filter tube 6, the driving plate 13 continues to move forward to push the push frame 20 out of the reciprocating filter tube 6, and the push frame 20 pushes out the impurities filtered by the No. 2 filter screen 21.

[0030] It should be noted that the present invention delivers sewage into the primary filter box 1 through a conveying device, and floating objects or large-volume garbage are filtered on the outside of the large filter screen 2. The sewage is filtered into the primary filter box 1, and then enters the reciprocating filter tube 6 from the bottom of the primary filter box 1. In the reciprocating filter tube 6, the sewage is filtered through the No. 2 filter screen 21 and then enters the sedimentation tank 22. During this period, the impurities filtered by the No. 2 filter screen 21 are in the pushing frame 20. Under the action of the driving unit, the diverter baffle 17 regularly blocks the reciprocating filter tube 6. During this period, the sewage enters the diverter pipe 8 after being filtered through the No. 1 filter screen 9, and then enters the sedimentation tank 22. When the diverter baffle 17 blocks the reciprocating filter tube 6, the driving unit drives the pushing frame 20 to slide out of the reciprocating filter tube 6, and the pushing frame 20 scrapes and cleans the No. 2 filter screen 21. Because the diverter baffle 17 first blocks the reciprocating filter tube 6, the pushing frame 20 pushes out the impurities , so that the sewage will not flow out from the direction pushed by the pushing frame 20. Because the pushing frame 20 is a frame with openings at the top and bottom, under the action of gravity, the No. 2 filter screen 21 collects impurities and falls. Under the action of the No. 2 reciprocating screw 15, the driving plate 13 moves to one end and resets. Under the action of the No. 1 spring 16 and the No. 2 spring 19, the pushing frame 20 and the diverter baffle 17 are reset successively, so that the No. 2 filter screen 21 at the bottom of the reciprocating filter tube 6 can be filtered here. Under the impact of the water flow above, the impurities filtered on the outside of the No. 1 filter screen 9 are flushed into the pushing frame 20 at the top of the No. 2 filter screen 21, which is convenient for cleaning. In this reciprocating manner, the cleaning of the No. 1 filter screen 9 and the No. 2 filter screen 21 is realized without stopping the operation. Moreover, under the action of linkage, the filtered impurities can be cleaned and processed from the filtration system to prevent them from clogging the filter screen and improve the efficiency and consistency of its filtration.

[0031] See also Figure 1 , 2 As shown, a cleaning rake 3 which reciprocates along the middle of the large filter screen 2 is provided at the bottom of the large filter screen 2, and is used to remove impurities filtered by the large filter screen 2. A No. 1 reciprocating screw 4 which drives the cleaning rake 3 to move is tiltedly arranged inside the primary filter box 1, and the No. 1 reciprocating screw 4 is threadedly connected to the cleaning rake 3. A No. 1 motor 5 is fixedly connected to the outer side of the primary filter box 1, and the output end of the No. 1 motor 5 is fixedly connected to the No. 1 reciprocating screw 4. When the cleaning rake 3 moves to the bottom of the large filter screen 2, the top of the cleaning rake 3 is located below the large filter screen 2. When the cleaning rake 3 moves to the top of the large filter screen 2, the cleaning rake 3 passes through the middle of the large filter screen 2.

[0032] It should be noted that the large filter screen 2 of the present invention is tilted, and the No. 1 reciprocating screw 4 is tilted and placed below the large filter screen 2, and the angle between the No. 1 reciprocating screw 4 and the top of the primary filter box 1 is greater than the angle between the large filter screen 2 and the top of the primary filter box 1, the cleaning rake 3 includes a cross bar and a vertical bar vertically fixed to the top of the cross bar, the vertical bar cooperates with the strip hole in the middle of the large filter screen 2, the cross bar is slidably connected to the inner wall of the primary filter box 1 and is threadedly connected to the No. 1 reciprocating screw 4, and the No. 1 motor 5 is driven by the No. 1 reciprocating screw 4 The cleaning rake 3 reciprocates in the primary filter box 1. When the cleaning rake 3 moves to the end where the large filter screen 2 is located at the bottom, the top of the cleaning rake 3 is located at the bottom of the primary filter box 1. Impurities are filtered and remain on the top of the large filter screen 2. The cleaning rake 3 moves upward from the bottom of the large filter screen 2. When the cleaning rake 3 moves to the end where the large filter screen 2 is located at the top, the vertical rod of the cleaning rake 3 passes through the bottom of the large filter screen 2 to push the impurities down from the top of the large filter screen 2. The primary filter box 1 is provided with a recovery box for receiving materials.

[0033] See also Figure 3 , 4 As shown in , 5 and 6, the driving part also includes a support frame 10 fixedly connected to the side of the reciprocating filter tube 6, a No. 2 reciprocating screw 15 is rotatably connected to the middle part of the support frame 10, one end of the support frame 10 is fixedly connected to a No. 2 motor 11, the output end of the No. 2 motor 11 is fixedly connected to the No. 2 reciprocating screw 15, one side of the reciprocating filter tube 6 is provided with a slag outlet 7 slidably connected to a pushing frame 20, the other side of the reciprocating filter tube 6 is fixedly connected to two No. 1 push rods 12, the driving plate 13 and the reciprocating filter tube 6 are both slidably connected to the No. 1 push rod 12, and the outer side of the reciprocating filter tube 6 is fixedly connected to a limited position Plate 14, a No. 1 spring 16 is sleeved on the outer side of the No. 1 push rod 12 and is located between the reciprocating filter tube 6 and the limit plate 14, the elastic force of the No. 1 spring 16 is greater than the friction force between the No. 1 push rod 12 and the driving plate 13, and a No. 2 push rod 18 is fixedly connected to the end of the diverter baffle 17, and the No. 2 push rod 18 passes through the middle of the driving plate 13 and is slidably connected to the driving plate 13, and a No. 2 spring 19 is sleeved on the outer side of the No. 2 push rod 18 and is located between the diverter baffle 17 and the driving plate 13, and the elastic force of the No. 2 spring 19 is greater than the friction force between the diverter baffle 17 and the reciprocating filter tube 6.

[0034] It should be noted that, when the present invention is circulating to clean impurities, the No. 2 motor 11 drives the No. 2 reciprocating screw 15 to rotate continuously, and the No. 2 reciprocating screw 15 drives the driving plate 13 to reciprocate. When the driving plate 13 moves toward one side of the reciprocating filter tube 6, the elastic force of the No. 2 spring 19 is greater than the friction between the diverter baffle 17 and the reciprocating filter tube 6. Therefore, the driving plate 13 pushes the diverter baffle 17 toward the inside of the reciprocating filter tube 6 through the No. 2 spring 19. At this time, there is a certain movement between the driving plate 13 and the limit plate 14, and the driving plate 13 slides on the outside of the No. 1 push rod 12 without exerting any force on the No. 1 push rod 12. Add thrust, when the driving plate 13 pushes the diverter baffle 17 to the inside of the reciprocating filter tube 6 through the No. 2 push rod 18, the diverter baffle 17 blocks the reciprocating filter tube 6 at this time, and the sewage is filtered through the No. 1 filter screen 9 into the diverter pipe 8, and then to the sedimentation tank 22. After the diverter baffle 17 blocks the reciprocating filter tube 6, the driving plate 13 continues to move forward, and the driving plate 13 squeezes the No. 2 spring 19 while pushing the limit plate 14 to move. The limit plate 14 drives the No. 1 push rod 12 to push the push frame 20 outward, and the push frame 20 scrapes the top of the No. 2 filter screen 21 to push impurities outward. During this period , the limit plate 14 compresses the No. 1 spring 16. When the push frame 20 is pushed out from the slag outlet 7, the impurities pushed out fall into the screw conveyor 23 below under the action of gravity. When the No. 2 reciprocating screw 15 drives the driving plate 13 to move toward one end of the No. 2 motor 11, the No. 1 spring 16 is reset without the pressure of the driving plate 13, and drives the limit plate 14 to move forward. The limit plate 14 pulls the push frame 20 back into the reciprocating filter tube 6 through the No. 1 push rod 12. At this time, the side of the push frame 20 blocks the slag outlet 7, and the outer side of the push frame 20 is equipped with a sealing The cover plate of the sealing gasket has an area larger than that of the slag outlet 7. After the pushing frame 20 is reset, the cover plate blocks the slag outlet 7. During this period, the No. 2 spring 19 is also reset. When the No. 2 spring 19 is fully extended, the driving plate 13 pulls the No. 2 push rod 18 through the limit piece at the end of the No. 2 push rod 18, so as to pull the diverter baffle 17 out from the middle of the reciprocating filter tube 6. At this time, the reciprocating filter tube 6 can continue to transport and filter downward. During this period, the water flow from top to bottom can flush and clean the No. 1 filter screen 9 out, thereby circulating to clean the two filter screens and remove impurities.

[0035] See also Figure 1 , 2As shown in , 7, a sedimentation tank 22 is fixedly connected to the bottom of the reciprocating filter tube 6, and the reciprocating filter tube 6 and the diverter tube 8 are both connected to the sedimentation tank 22. A screw conveyor 23 is installed on one side of the sedimentation tank 22 and below the slag outlet 7, and an extrusion box 24 is installed below the discharge port of the screw conveyor 23. A feed port is provided at the top of the No. 2 filter screen 21, and an extrusion push plate 26 is slidably connected inside the extrusion box 24. A blocking plate 27 for blocking the feed port is fixed on the top of the extrusion push plate 26. A hydraulic cylinder 25 is fixedly connected to one end of the extrusion box 24, and the output end of the hydraulic cylinder 25 is fixedly connected to the extrusion push plate 26. The bottom water outlet of the extrusion box 24 and the end of the extrusion box 24 facing away from the hydraulic cylinder 25 are fixedly connected to an extrusion mesh plate 30, and a lifting mesh plate 29 is slidably connected to one side of the extrusion mesh plate 30. A double-axis cylinder 28 is fixedly connected to the top of the lifting mesh plate 29, and the output end of the double-axis cylinder 28 is fixedly connected to the top of the extrusion box 24.

[0036] It should be noted that the bottom of the sedimentation tank 22 of the present invention is funnel-shaped, and a sewage pump is installed on the outside of the extrusion box 24. The input end of the sewage pump is connected to the bottom of the sedimentation tank 22, and the output end of the sewage pump is connected to the feed port of the extrusion box 24 through a pipeline. The push frame 20 pushes the impurities inside the No. 2 filter 21 outward, and under the action of gravity, the impurities enter the screw conveyor 23, and the screw conveyor 23 transports the impurities to the extrusion box 24. Under the action of the controller and the timer, the hydraulic cylinder 25 drives the No. 1 spring 16 to move to one side, and the extrusion push plate 26 drives the blocking plate 27 to the feed port while moving. The hydraulic cylinder 25 performs filter pressing treatment on the internal impurities by squeezing the push plate 26. A water outlet is arranged at the bottom of the squeezing box 24, and a filter cloth is installed on the top of the water outlet to filter the impurities. When the squeezing is completed, the lifting mesh plate 29 is driven to rise and fall by the double-axis cylinder 28. When the lifting mesh plate 29 corresponds to the mesh holes of the extrusion mesh plate 30, the extruded impurities can be squeezed out of the mesh holes. When the lifting mesh plate 29 and the mesh holes of the extrusion mesh plate 30 are misaligned, the lifting mesh plate 29 blocks the entry and exit of the extrusion mesh plate 30, so that the inside of the squeezing box 24 is sealed.

[0037] See also Figure 8 , 9 As shown, one side of the sedimentation tank 22 is fixedly connected to the treatment tank, a filter tank 31 is arranged inside the treatment tank, a disinfection tank 37 is arranged on one side of the filter tank 31, a deodorization tank 38 is arranged on the side of the disinfection tank 37 away from the filter tank 31, a filter cotton 32 is arranged inside the filter tank 31, an activated carbon net is arranged inside the deodorization tank 38, a plurality of groups of support rods 33 are fixedly connected to the upper and lower parts of the disinfection tank 37, a rotating plate 34 is rotatably connected to the bottom of the support rod 33, the middle part of the rotating plate 34 is connected to the support rod 33 by a No. 3 spring 35, and ultraviolet sterilization lamps 36 are installed on the top of the rotating plate 34 and the inside of the disinfection tank 37.

[0038] It should be noted that the filter cotton 32 of the present invention is quartz sand filter cotton, and a water pump No. 1 is installed on the top of the sedimentation tank 22. The water inside the sedimentation tank 22 is sent to the bottom of the filter tank 31 by the water pump No. 1, and filtered by the filter cotton 32 inside the filter tank 31, and then flows into the disinfection tank 37 from the top of the filter tank 31, and flows downward from the top of the disinfection tank 37. Under the action of the No. 3 spring 35, the end of the rotating plate 34 fits with the inner wall of the disinfection tank 37 to form a V-shaped water collection tank. The water contacts the ultraviolet sterilization lamp 36 in the water squeezing tank to achieve sterilization. When the gravity of the water inside the water collection tank is greater than the pulling force of the No. 3 spring 35, the rotating plate 34 flips downward, and the water flows into the rotating plate 34 on the lower layer, thereby slowing down the water flow speed, so that the water is fully in contact with the ultraviolet sterilization lamp 36, and the No. 2 water pump sends the water in the disinfection tank 37 into the deodorization tank 38, and deodorizes it through the activated carbon net inside the deodorization tank 38.

[0039] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0041] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sewage treatment device, characterized in that: include: A primary filter box (1), the top of the primary filter box (1) being inclined and provided with a large filter screen (2); A circulating filter assembly, the circulating filter assembly is placed at the bottom of the primary filter box (1), the circulating filter assembly comprises a reciprocating filter tube (6) fixedly connected to the bottom of the primary filter box (1), a shunt tube (8) fixedly connected to the side of the reciprocating filter tube (6), a No. 1 filter screen (9) is provided at the connection between the shunt tube (8) and the reciprocating filter tube (6), a shunt baffle (17) for sealing the reciprocating filter tube (6) is slidably connected to the middle of the reciprocating filter tube (6), a No. 2 filter screen (21) is installed at the bottom of the reciprocating filter tube (6), a pusher frame (20) is slidably connected to the top of the No. 2 filter screen (21) for collecting impurities filtered by the No. 2 filter screen (21), and a driving unit for driving the shunt baffle (17) and the pusher frame (20) to slide back and forth is installed on one side of the reciprocating filter tube (6); The driving part comprises a No. 2 reciprocating screw (15) and a driving plate (13) threadedly mounted on the outer side thereof. During filtering, the driving plate (13) drives the diverter baffle (17) to block the reciprocating filter tube (6), and water is filtered through the No. 1 filter screen (9). When the diverter baffle (17) contacts the inner wall of the reciprocating filter tube (6), the driving plate (13) continues to move forward to push the pusher frame (20) out of the reciprocating filter tube (6), and the pusher frame (20) pushes out impurities filtered by the No. 2 filter screen (21).

2. A sewage treatment device according to claim 1, characterized in that: A cleaning rake (3) is provided at the bottom of the large filter (2) and reciprocates along the middle of the large filter (2) to remove impurities filtered by the large filter (2). A first reciprocating screw (4) is arranged obliquely inside the primary filter box (1) to drive the cleaning rake (3) to move. The first reciprocating screw (4) is threadedly connected to the cleaning rake (3). A first motor (5) is fixedly connected to the outside of the primary filter box (1). The output end of the first motor (5) is fixedly connected to the first reciprocating screw (4). When the cleaning rake (3) moves to the bottom of the large filter (2), the top of the cleaning rake (3) is located below the large filter (2). When the cleaning rake (3) moves to the top of the large filter (2), the cleaning rake (3) passes through the middle of the large filter (2).

3. A sewage treatment device according to claim 1, characterized in that: The driving unit further comprises a support frame (10) fixedly connected to the side of the reciprocating filter tube (6); the second reciprocating screw (15) is rotatably connected to the middle of the support frame (10); one end of the support frame (10) is fixedly connected to a second motor (11); and the output end of the second motor (11) is fixedly connected to the second reciprocating screw (15).

4. A sewage treatment device according to claim 3, characterized in that: A slag outlet (7) is provided on one side of the reciprocating filter tube (6) and is slidably connected to a push frame (20); two No. 1 push rods (12) are fixedly connected to the other side of the reciprocating filter tube (6); the drive plate (13) and the reciprocating filter tube (6) are both slidably connected to the No. 1 push rod (12); the outer side of the reciprocating filter tube (6) is fixedly connected to a limit plate (14); a No. 1 spring (16) is sleeved on the outer side of the No. 1 push rod (12) and between the reciprocating filter tube (6) and the limit plate (14); the elastic force of the No. 1 spring (16) is greater than the friction force between the No. 1 push rod (12) and the drive plate (13).

5. A sewage treatment device according to claim 4, characterized in that: A second push rod (18) is fixedly connected to the end of the diverter baffle (17), and the second push rod (18) passes through the middle of the drive plate (13) and is slidably connected to the drive plate (13). A second spring (19) is sleeved on the outer side of the second push rod (18) and located between the diverter baffle (17) and the drive plate (13), and the elastic force of the second spring (19) is greater than the friction force between the diverter baffle (17) and the reciprocating filter tube (6).

6. A sewage treatment device according to claim 1, characterized in that: A sedimentation tank (22) is fixedly connected to the bottom of the reciprocating filter tube (6), and the reciprocating filter tube (6) and the diverter tube (8) are both in communication with the sedimentation tank (22). A screw conveyor (23) is installed on one side of the sedimentation tank (22) and below the slag outlet (7), and an extrusion box (24) is installed below the outlet of the screw conveyor (23). A feed port is provided at the top of the No. 2 filter screen (21), and an extrusion push plate (26) is slidably connected to the inside of the extrusion box (24), and a blocking plate (27) for blocking the feed port is fixed to the top of the extrusion push plate (26), and one end of the extrusion box (24) is fixedly connected to a hydraulic cylinder (25), and an output end of the hydraulic cylinder (25) is fixedly connected to the extrusion push plate (26).

7. A sewage treatment device according to claim 6, characterized in that: The bottom water outlet of the extrusion box (24) is fixedly connected to an extrusion mesh plate (30) at one end of the extrusion box (24) facing away from the hydraulic cylinder (25), a lifting mesh plate (29) is slidably connected to one side of the extrusion mesh plate (30), a double-axis cylinder (28) is fixedly connected to the top of the lifting mesh plate (29), and an output end of the double-axis cylinder (28) is fixedly connected to the top of the extrusion box (24).

8. A sewage treatment device according to claim 6, characterized in that: One side of the sedimentation tank (22) is fixedly connected to the treatment tank, a filter tank (31) is provided inside the treatment tank, a disinfection tank (37) is provided on one side of the filter tank (31), a deodorization tank (38) is provided on the side of the disinfection tank (37) facing away from the filter tank (31), a filter cotton (32) is provided inside the filter tank (31), and an activated carbon net is provided inside the deodorization tank (38).

9. A sewage treatment device according to claim 8, characterized in that: A plurality of groups of support rods (33) are fixedly connected to the interior of the disinfection pool (37) at the top and bottom. A rotating plate (34) is rotatably connected to the bottom of the support rod (33). The middle of the rotating plate (34) is connected to the support rod (33) via a No. 3 spring (35). An ultraviolet sterilization lamp (36) is installed on the top of the rotating plate (34) and the interior of the disinfection pool (37).

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