Stereoscopic reciprocating sewage treatment system

Abstract

The present application relates to a kind of three-dimensional reciprocating sewage treatment system, belong to sewage treatment technical field, specifically including sewage tank installed on ground, the filter grid is arranged in the sewage tank, the water outlet of the sewage tank is connected with multistage water filter assembly, the clean water outlet of the multistage water filter assembly is connected with clean water tank, the clean water tank is provided with drain pipe and drain control valve, the sewage outlet of the multistage water filter assembly is connected with dosing tank, the overflow of the dosing tank is connected with filter tank, the filter tank is provided with overflow pipe, the filter tank is also connected with sewage tank by circulating water pipe, water pump is installed on the circulating water pipe, the present application is simple in structure, reasonable in design, small in occupied space, and high in sewage treatment efficiency.

Description

Technical Field

[0001] This invention relates to a three-dimensional reciprocating sewage treatment system, belonging to the field of sewage treatment technology. Background Technology

[0002] Currently, existing wastewater treatment methods mainly include constructed wetland treatment technology, stabilization pond treatment technology, domestic sewage biogas digester technology, and biofilm treatment technology. All existing technologies have certain drawbacks to varying degrees. For example, constructed wetland and stabilization pond technologies require large land areas and are greatly affected by climate; biogas digester technology cannot deeply treat wastewater, resulting in high pollutant content in discharged water; and biofilm technology is too expensive and prone to clogging with long-term operation. Bottled and tubular wastewater treatment technology is still in its early stages, with outdated technology, low wastewater reuse rates, and problems such as large land area requirements, limited land use, and difficulties in expansion and renovation. Summary of the Invention

[0003] To address the technical problems existing in the prior art, this invention provides a three-dimensional reciprocating sewage treatment system that is simple in structure, rationally designed, occupies little space, and has high sewage treatment efficiency.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is a three-dimensional reciprocating sewage treatment system, including a sewage tank installed on the ground, a filter screen installed inside the sewage tank, a multi-stage water filtration assembly connected to the outlet of the sewage tank, a clean water tank connected to the clean water outlet of the multi-stage water filtration assembly, a drain pipe and a drain control valve installed on the clean water tank, a chemical dosing tank connected to the sewage outlet of the multi-stage water filtration assembly, an overflow port of the chemical dosing tank connected to the filter tank, an overflow pipe installed on the filter tank, and the filter tank also connected to the sewage tank through a circulating water pipe, on which a water pump is installed.

[0005] Preferably, the multi-stage water filtration assembly includes a fixed frame and multiple water filtration tanks installed on the fixed frame. The multiple water filtration tanks are arranged sequentially from top to bottom and are connected to each other by a water guide bend. Each water filtration tank is provided with multiple water filtration holes, and filter media components are provided in the water filtration holes. A clean water tank is installed below the bottommost water filtration tank, and a chemical dosing tank is connected to the outlet of the bottommost water filtration tank.

[0006] Preferably, the filter media assembly includes a storage cylinder, a movable perforated plate, and a fixed perforated plate. The bottom of the storage cylinder is fixed with a fixed perforated plate, and the top of the storage cylinder is provided with a movable perforated plate. The storage cylinder is threaded into the filter holes, and the top of the filter holes is provided with an annular retaining ring. Correspondingly, the circumference of the movable perforated plate is provided with an annular groove, and the storage cylinder is filled with filter media.

[0007] Preferably, the slope of the filter trough located in the odd-numbered positions is 3%, and the slope of the filter trough located in the even-numbered positions is 2%.

[0008] Preferably, the filter holes are located in the upper half of the filter tank, and the filter holes at the bottom of the filter tank cover the entire filter tank.

[0009] Preferably, the dosing tank includes an outer shell, an inner shell, and a stirring shaft. The stirring shaft is installed inside the inner shell, and a stirring motor is installed on the top of the inner shell. The stirring shaft is connected to the output shaft of the stirring motor. The outer shell is installed outside the inner shell, and the bottom of the inner shell is open. An overflow channel is provided between the outer shell and the inner shell. An overflow port is provided on the outer shell. The outer shell and the inner shell are connected and fixed by an annular connecting plate. A dosing pipe is also provided on the inner shell.

[0010] Compared with the prior art, the present invention has the following technical effects: The present invention has a simple structure and is easy to use. It adopts a multi-stage water filter tank structure and uses the filter holes on the water filter tank to filter sewage in multiple stages. The filtered clean water enters the clean water tank and the sewage enters the dosing tank. After flocculation and sedimentation, it enters the filter tank for further filtration. The whole system occupies little space and has a simple structure, making it easy to install and maintain. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention.

[0012] Figure 2 This is a top view of the multi-stage water filtration assembly in this invention.

[0013] Figure 3 This is a schematic diagram of the water filter tank in this invention.

[0014] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0015] Figure 5 This is a schematic diagram of the dosing tank in this invention. Detailed Implementation

[0016] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, 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 merely illustrative of the present invention and are not intended to limit the present invention.

[0017] like Figure 1As shown, the three-dimensional reciprocating sewage treatment system includes a sewage tank 1 installed on the ground. A filter screen is installed inside the sewage tank 1. The outlet of the sewage tank 1 is connected to a multi-stage water filtration assembly 3. The clean water outlet of the multi-stage water filtration assembly 3 is connected to a clean water tank 4. A drain pipe 5 and a drain control valve are installed on the clean water tank 4. The sewage outlet of the multi-stage water filtration assembly 3 is connected to a dosing tank 6. The overflow port of the dosing tank 6 is connected to a filter tank 7. An overflow pipe 8 is installed on the filter tank 7. The filter tank 7 is also connected to the sewage tank 1 through a circulating water pipe 9. A water pump 10 is installed on the circulating water pipe 9.

[0018] This invention employs a multi-stage filtration system where wastewater in a wastewater tank 1 is filtered through a filter grid before entering a multi-stage filtration assembly 3. The multi-stage filtration assembly 3 performs multiple stages of filtration, and the filtered clean water enters a clean water tank 4. A drain pipe 5 is installed on the clean water tank 4 to directly discharge the clean water. Part of the wastewater enters a chemical dosing tank 6 for chemical dosing and stirring. The mixture overflows into a filter tank 7, which contains a filter plate. The supernatant after filtration through the filter plate is discharged through an overflow pipe 8. The wastewater in the filter tank 7 is circulated back to the wastewater tank via a circulating water pipe and pump. The entire system has a small footprint and is easy to maintain; only periodic cleaning of the multi-stage filtration assembly 3, clean water tank 4, and filter tank 7 is required, making cleaning convenient.

[0019] like Figures 2 to 3As shown, the multi-stage water filtration assembly 3 includes a fixed frame 11 and multiple filter tanks 12 mounted on the fixed frame 11. The multiple filter tanks 12 are arranged sequentially from top to bottom and are connected by water guide bends 13. Multiple filter holes 14 are provided on each filter tank 12, and filter media components are installed inside the filter holes 14. A clear water tank 4 is installed below the bottom filter tank 12, and a dosing tank 6 is connected to the outlet of the bottom filter tank 12. The multi-stage water filtration assembly 3 adopts a structure in which multiple filter tanks 12 are connected end to end and arranged sequentially from top to bottom. While sewage flows on the filter tanks 12, it is filtered through the filter media components in the filter holes 14. The slope of the filter tanks 12 located in odd-numbered positions is 3%, and the slope of the filter tanks 12 located in even-numbered positions is 2%. The use of two slopes in the filter tanks allows for adjustment of the sewage flow rate, thereby improving the sewage filtration effect. Meanwhile, the filter holes are located in the upper half of the filter tank 12, and the filter holes on the bottommost filter tank 12 cover the entire filter tank. This allows the wastewater to accelerate its flow rate after passing through the filter holes, thus providing sufficient kinetic energy when entering the next filter tank. The filter media assembly includes a storage cylinder 16, a movable perforated plate 17, and a fixed perforated plate 18. The bottom of the storage cylinder 16 is fixed with the fixed perforated plate 18, and the top of the storage cylinder 16 is provided with the movable perforated plate 17. The storage cylinder 16 is threaded into the filter hole 14, and the top of the filter hole 14 is provided with an annular retaining ring 19. Correspondingly, the movable perforated plate 17 has an annular groove 20 on its circumference. The storage cylinder 16 is filled with filter media. The filter media assembly adopts a modular structure, which can be freely replaced and disassembled, facilitating later maintenance.

[0020] like Figure 5 As shown, the dosing tank includes an outer shell 21, an inner shell 22, and a stirring shaft 23. The stirring shaft 23 is installed inside the inner shell 22, and a stirring motor 24 is installed on the top of the inner shell 22. The stirring shaft 23 is connected to the output shaft of the stirring motor 24. The outer shell 21 is installed outside the inner shell 22, and the bottom of the inner shell 22 is open. An overflow channel 25 is provided between the outer shell 21 and the inner shell 22. An overflow port 26 is provided on the outer shell 21. The outer shell 21 and the inner shell 22 are connected and fixed by an annular connecting plate 15. A dosing pipe 2 is also provided on the inner shell 22. The dosing tank adopts a double-layer structure. The inner shell 22 stirs the sewage through the stirring shaft 23 to make the sewage and the agent mix evenly. The mixed sewage overflows through the overflow channel 25 and is then filtered again in the filter tank 7.

[0021] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the scope of the present invention.

Claims

1. A three-dimensional reciprocating sewage treatment system, comprising a sewage tank installed on the ground, characterized in that: The wastewater tank is equipped with a filter screen. The outlet of the wastewater tank is connected to a multi-stage water filtration assembly. The clean water outlet of the multi-stage water filtration assembly is connected to a clean water tank. The clean water tank is equipped with a drain pipe and a drain control valve. The wastewater outlet of the multi-stage water filtration assembly is connected to a dosing tank. The overflow port of the dosing tank is connected to the filter tank. The filter tank is equipped with an overflow pipe. The filter tank is also connected to the wastewater tank through a circulating water pipe. A water pump is installed on the circulating water pipe. The multi-stage water filtration assembly includes a fixed frame and multiple water filtration tanks installed on the fixed frame. The multiple water filtration tanks are inclined and arranged sequentially from top to bottom. The water filtration tanks are connected by water guide bends. Multiple water filtration holes are provided on the water filtration tanks. Filter media components are provided in the water filtration holes. A clean water tank is installed below the bottommost water filtration tank. A dosing tank is connected to the outlet of the bottommost water filtration tank. The multi-stage water filtration assembly adopts a structure in which multiple water filtration tanks are connected end to end. The filter media assembly includes a storage cylinder, a movable perforated plate, and a fixed perforated plate. The bottom of the storage cylinder is fixed with a fixed perforated plate, and the top of the storage cylinder is provided with a movable perforated plate. The storage cylinder is threaded into the filter hole, and the top of the filter hole is provided with an annular retaining ring. Correspondingly, the circumference of the movable perforated plate is provided with an annular groove. The storage cylinder is filled with filter media. The slope of the filter tank located in the odd-numbered position is 3%, and the slope of the filter tank located in the even-numbered position is 2%. The filter holes are located in the upper half of the filter tank, and the filter holes at the bottom of the filter tank cover the entire filter tank.

2. The three-dimensional reciprocating sewage treatment system according to claim 1, characterized in that: The dosing tank includes an outer shell, an inner shell, and a stirring shaft. The stirring shaft is installed inside the inner shell, and a stirring motor is installed on the top of the inner shell. The stirring shaft is connected to the output shaft of the stirring motor. The outer shell is installed outside the inner shell, and the bottom of the inner shell is open. An overflow channel is provided between the outer shell and the inner shell. An overflow port is provided on the outer shell. The outer shell and the inner shell are connected and fixed by an annular connecting plate. A dosing pipe is also provided on the inner shell.

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