Rain and sewage separation system

Abstract

The invention discloses a rain and sewage separation system which comprises a front precipitation device and a rear filtering device, the sedimentation device is a sedimentation tank, a partition plate is arranged in the sedimentation tank and divides the sedimentation tank into a first sedimentation tank and a second sedimentation tank, an inlet in the top of the first sedimentation tank is used for collecting rainwater, and the second sedimentation tank is communicated with a sewage pipeline and used for collecting sewage; the filtering device is respectively communicated with the first settling pond and the second settling pond, the filtering device is disc-shaped, a box body is arranged outside the filtering device, a shaft is arranged in the center of the box body, a plurality of partition plates are arranged on the shaft, the partition plates are uniformly arranged around the shaft by a circle, a filter screen plate is arranged between every two adjacent partition plates, openings are formed in the box body on two sides of the horizontal or horizontally downward filter screen plate, and the openings are communicated with the filter screen plate. And the opening position is welded and butted with the pipeline end face. And the filtering device is arranged, and the rotatable filtering device is matched with the filtering net plates in the multiple intervals, so that rotation replacement is achieved, and shutdown is not needed.

Description

Technical Field

[0001] The invention relates to a filtering system, in particular to a rainwater-sewage separation system. Background Art

[0002] In the early planning, future development and the increase in sewage discharge were not taken into consideration. There was no sewage pipe network for domestic sewage. Instead, rainwater and sewage were separated into one drainage pipe, i.e., a combined drainage system. With the development of economy and the enhancement of environmental awareness, coupled with the increasing preciousness of water resources, in order to make better use of various water resources, the drainage method of using one drainage pipe for rainwater and sewage was implemented, which is called rainwater and sewage separation.

[0003] Rainwater and sewage separation is a drainage system that separates rainwater and sewage, and transports them through separate pipes for discharge or subsequent treatment. Rainwater is discharged directly into the river through the rainwater pipe network, while sewage is collected through the sewage pipe network and sent to the sewage treatment plant for treatment to avoid sewage directly entering the river and causing pollution. In addition, the collection, utilization, and centralized management and discharge of rainwater can reduce the impact of water volume on sewage treatment plants and ensure the treatment efficiency of sewage treatment plants.

[0004] In the existing rainwater and sewage pipe treatment, natural sedimentation is mostly used, but this method is inefficient on the one hand and has a low degree of filtration on the other. In response to this, a filter is added for secondary filtration in the subsequent process. However, the filter needs to be replaced and cleaned regularly. Each time it is cleaned and replaced, the pipeline needs to be closed and opened again after replacement and cleaning, and each replacement is inconvenient. Summary of the invention

[0005] The purpose of the present invention is to provide a rainwater-sewage separation system to solve the problems raised in the prior art.

[0006] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical scheme:

[0007] A rainwater-sewage separation system comprises a front sedimentation device and a rear filtering device;

[0008] The sedimentation device is a sedimentation tank, in which a partition is provided, which divides the sedimentation tank into a first sedimentation tank and a second sedimentation tank. The top inlet of the first sedimentation tank collects rainwater, and the second sedimentation tank is connected to a sewage pipe to collect sewage.

[0009] The filtering device is a pipeline with a plurality of filter screens, and two pipelines are provided, which are respectively connected to the first sedimentation tank and the second sedimentation tank.

[0010] Further technology of the present invention:

[0011] Preferably, a connecting pipe is provided at the upper part of the partition to connect the left and right spaces.

[0012] Preferably, a pump is provided on the pipeline, and the pipeline extends upward, extends out of the top of the sedimentation tank and then extends horizontally, the horizontal section is divided into several sections, a filter device is clamped between the sections, and the filter screen is arranged on the filter device.

[0013] Preferably, the filter device is disc-shaped with a box body on the outside. An axis is provided in the center of the box body, and the rotation of the axis is controlled by a motor arranged outside the box body. A plurality of partition plates are provided on the axis, and the partition plates are evenly arranged around the axis. A filter mesh plate is placed between two adjacent partition plates, and openings are provided on the box body on both sides of the filter mesh plate facing horizontally or downward, and the opening position is welded to the end face of the pipe.

[0014] Preferably, the opening area is smaller than the filter screen area.

[0015] Preferably, a rubber strip is provided on the edge of the dividing plate to seal the gap between the dividing plate and the inner wall of the box body.

[0016] Preferably, the partition plate is provided with slots, and the two sides of the filter screen plate are respectively inserted into the slots of the two partition plates, and the top of the box body is provided with a notch, and the filter screen plate can be pulled out from the notch.

[0017] The beneficial effects of the present invention are:

[0018] The present invention provides a rainwater-sewage separation system, in which a filter device is arranged above the water level. The filter device can be rotated to cooperate with filter screens in a plurality of sections to achieve rotational replacement without stopping the machine, which is simple and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A schematic diagram of a rainwater and sewage separation system;

[0021] Figure 2 It is a schematic diagram of the front section of the box body;

[0022] Figure 3 It is a schematic diagram of the back side of the box body;

[0023] Figure 4 It is a schematic diagram of the top of the box;

[0024] In the figure: 10. First sedimentation tank; 11. Second sedimentation tank; 12. Partition plate; 13. Sewage pipe; 14. Pipe; 15. Filter screen; 16. Pump; 17. Box body; 18. Shaft; 19. Motor; 20. Opening; 21. Rubber strip; 22. Slot; 23. Notch; 24. Connecting pipe; 25. Dividing plate. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be further described in detail below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention but not all. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0026] like Figure 1 , a rainwater-sewage separation system, comprising a front sedimentation device and a rear filtering device;

[0027] The sedimentation device is a sedimentation tank. In this embodiment, the sedimentation tank is located below the ground to facilitate the collection of rainwater. A partition 12 is provided in the sedimentation tank, and the partition 12 divides the sedimentation tank into a first sedimentation tank 10 and a second sedimentation tank 11. The top entrance of the first sedimentation tank 10 collects rainwater, and the second sedimentation tank 11 is connected to a sewage pipe 13 to collect sewage.

[0028] The filtering device is a pipe 14 having a plurality of filter screens 15 , and two pipes 14 are provided, which are respectively connected to the first sedimentation tank 10 and the second sedimentation tank 11 .

[0029] A connecting pipe 24 is provided on the upper part of the partition plate 12 to connect the left and right side spaces.

[0030] Under normal conditions, rainwater enters the first sedimentation tank 10 and sewage enters the second sedimentation tank 11. The advantage of separating the two is that rainwater is relatively clean compared to sewage, and the filter screen 15 needs to be replaced relatively less frequently. However, since rainwater is not common, the first sedimentation tank 10 is vacant. Since the first sedimentation tank 10 and the second sedimentation tank 11 have the same structure and both need to pass through the filtering device, a connecting pipe is set to connect the tops of the first sedimentation tank 10 and the second sedimentation tank 11. When there is a lot of sewage, it can be introduced into the first sedimentation tank 10 through the connecting pipe to speed up the sedimentation and filtration of sewage. Anyway, in seasons with more rain, rainwater can also be introduced into the second sedimentation tank 11 through the rainwater connecting pipe.

[0031] The pipeline 14 is provided with a pump 16, and the pipeline extends upward, extends out of the top of the sedimentation tank and then turns to extend horizontally. The horizontal section is divided into several sections, and a filter device is clamped between the sections. The filter screen plate 15 is arranged on the filter device.

[0032] The filtering device is disc-shaped, with a box body 17 on the outside. A shaft 18 is provided in the center of the box body 17. The shaft 18 is controlled to rotate by a motor 19 arranged outside the box body 17. A plurality of partition plates 25 are provided on the shaft 18. The partition plates are evenly arranged around the shaft 18. A filter screen plate 15 is placed between two adjacent partition plates. Openings 20 are provided on the box body 17 on both sides of the filter screen plates 15 facing horizontally or downwardly, and the openings 20 are welded and docked with the end face of the pipe 14.

[0033] The filter screen plate 15 is arranged at a position above the first sedimentation tank 10 and the second sedimentation tank 11 , and water is filtered through the filter screen plate 15 through the pipeline 14 by a pump 16 .

[0034] The box body 17 is divided into several sections by a partition plate, and a filter screen plate 15 is arranged in each section. The motor 19 controls the shaft 18 to rotate. Each time the shaft 18 rotates, a filter screen plate 15 is connected to the opening 20.

[0035] It should be noted that, in this embodiment, the angle at which the motor 19 controls the shaft 18 to rotate each time should satisfy the correspondence between the next filter screen plate 15 and the opening 20 .

[0036] The area of ​​the opening 20 is smaller than the area of ​​the filter screen plate 15 .

[0037] The edge of the partition plate is provided with a rubber strip 21 to seal the gap between the partition plate and the inner wall of the box body 17, thereby minimizing water ingress into the area not corresponding to the opening 20.

[0038] The partition plates are provided with slots 22 , and the two sides of the filter screen plate 15 are respectively inserted into the slots 22 of the two partition plates. The top of the box body 17 is provided with a notch 23 , and the filter screen plate 15 can be pulled out from the notch 23 .

[0039] In the above structure, the filter device is in the shape of a disk, with a box body 17 on the outside, a shaft 18 is arranged in the center of the box body 17, the shaft 18 is controlled to rotate by a motor 19 arranged outside the box body 17, a plurality of partition plates are arranged on the shaft 18, the partition plates are evenly arranged around the shaft 18, and a filter screen plate 15 is placed between two adjacent partition plates. This satisfies that each interval is continuously enlarged from the shaft 18 in the center of the box body 17 to the edge of the box body 17, and the filter screen plate 15 also presents a structural layout of being large inside and large outside, and can be directly drawn out from the notch 23.

[0040] Meanwhile, in this embodiment, the notch 23 is located at the top of the box body 17, and the box body 17 on both sides of the horizontal or horizontally downward filter screen plate 15 described above is provided with openings 20, and the position of the openings 20 is welded and docked with the end surface of the pipe 14. This means that even if the rubber strip 21 is not well sealed, water will not flow out from the notch 23 at the high position, and it is directly open, which is convenient for pulling out the filter screen plate 15 that needs to be replaced. More importantly, the clogging of the filter screen plate 15 can also be detected. If the filter screen plate 15 corresponding to the opening 20 is clogged, water flows from the gap of the rubber strip 21 to other intervals until it fills the box body 17 and overflows from the notch 23, that is, the filter screen plate 15 corresponding to the opening 20 needs to be replaced in time.

[0041] In this article, "comprises", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0042] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A rainwater and sewage separation system, characterized in that: It includes a front sedimentation device and a rear filtering device; The sedimentation device is a sedimentation tank, in which a partition is provided, which divides the sedimentation tank into a first sedimentation tank and a second sedimentation tank. The top inlet of the first sedimentation tank collects rainwater, and the second sedimentation tank is connected to a sewage pipe to collect sewage. The filtering device is a pipeline with a plurality of filter screens, and two pipelines are provided, which are respectively connected to the first sedimentation tank and the second sedimentation tank.

2. A rainwater-sewage separation system according to claim 1, characterized in that: A connecting pipe is arranged on the upper part of the partition to connect the spaces on the left and right sides.

3. A rainwater-sewage separation system according to claim 1, characterized in that: The pipeline is provided with a pump, and the pipeline extends upward, extends out of the top of the sedimentation tank and then turns to extend horizontally. The horizontal section is divided into several sections, and a filter device is clamped between the sections. The filter screen is arranged on the filter device.

4. A rainwater-sewage separation system according to claim 3, characterized in that: The filtering device is disc-shaped, with a box body on the outside. A shaft is provided in the center of the box body, and the shaft is controlled to rotate by a motor arranged outside the box body. A plurality of dividing plates are provided on the shaft, and the dividing plates are evenly arranged around the shaft. A filter screen is placed between two adjacent dividing plates, and openings are provided on the box body on both sides of the filter screen facing horizontally or downward, and the opening position is welded to the end face of the pipeline.

5. A rainwater-sewage separation system according to claim 4, characterized in that: The opening area is smaller than the filter screen area.

6. A rainwater-sewage separation system according to claim 5, characterized in that: The edge of the dividing plate is provided with a rubber strip to seal the gap between the dividing plate and the inner wall of the box body.

7. A rainwater-sewage separation system according to claim 6, characterized in that: The partition plate is provided with slots, and the two sides of the filter screen plate are respectively inserted into the slots of the two partition plates. The top of the box body is provided with a notch, and the filter screen plate can be drawn out from the notch.

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