Sewage transfer and solid block sedimentation connecting device

Abstract

The utility model discloses a sewage transfer and solid block sedimentation connecting device, which belongs to the technical field of sewage treatment and comprises a sedimentation tank, a plurality of sewage discharge pipelines are horizontally arranged on one side of the sedimentation tank, a sedimentation tank and a water outlet pipeline are sequentially arranged along the sewage conveying direction, and the sewage discharge pipelines and the water outlet pipeline are connected through the sedimentation tank. Sewage enters the settling tank in the tangential direction of the settling tank, the water outlet direction of the sewage discharging pipelines does not coincide with the water outlet direction of the water outlet pipeline, the bottom ends of the sewage discharging pipelines are all higher than the top end of the water outlet pipeline, a baffle is vertically arranged on the inner wall of the settling tank, and the baffle and the sewage discharging pipelines are located on the same side of the settling tank. One end of the splitter plate is fixedly connected with the inner wall of the settling tank, the other end of the splitter plate is suspended and inclined downwards, and a plurality of holes are formed in the splitter plate. The settling tank is arranged between the sewage discharge pipeline and the water outlet pipeline, solid blocks are settled in the settling tank, the pipelines are prevented from being blocked, and the cleaning efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a sewage transfer and solid lump sedimentation connection device. Background Art

[0002] After the sewage in xylose production is anaerobically treated, it enters the activated sludge tank for further treatment. Then, the water with activated sludge is sedimented in the secondary sedimentation tank. The upper-layer sewage in the secondary sedimentation tank has reached the standard for entering the urban pipe network, but there are still a small amount of suspended substances and dissolved calcium ions, etc. During the discharge process, due to the long distance between the sewage discharge pipe of the secondary sedimentation tank and the discharge port and the long sewage conveying pipeline, when the sewage water temperature is relatively high, the sewage will scale and adhere to viscous substances on the pipe wall during long-term transportation. After being washed by water, they will fall off and accumulate in the pipeline to block the pipeline, especially the underground drainage pipeline that is far away after passing through the external sewage discharge port. In order to achieve the discharge effect, multiple sewage discharge pipes are usually provided on the secondary sedimentation tank. When multiple sewage discharge pipes converge into the main sewage discharge pipe, multiple elbow pipes are required. Due to location reasons, elbow pipes are also required to connect the main sewage discharge pipe and the underground drainage pipe. The elbow pipes will generate resistance to sewage transportation, and the turning points of the elbow pipes are more likely to scale and adhere to viscous substances, causing blockage, which brings difficulties to the operation of the sewage treatment system.

[0003] In the prior art, to solve the problem of sewage discharge pipe blockage, a sedimentation device is usually installed at the lower end of the horizontal sewage discharge pipe or a filter screen is added to the sedimentation tank and cleaned regularly. However, the sewage discharge pipeline of the secondary sedimentation tank is relatively long. Installing multiple sedimentation devices requires a high cleaning frequency and low cleaning efficiency, which affects the normal operation of production and does not solve the drainage resistance problem caused by multiple elbow pipes. Adding a filter screen can filter out some suspended substances in the sewage, but the scaling on the pipe wall is the result of long-term transportation of sewage with a relatively high water temperature. Adding only a filter screen cannot solve the problem of sewage discharge pipe blockage.

[0004] In view of the problems existing in the above prior art, the utility model combines the design and use experience in related fields for many years, and designs and manufactures a sewage transfer and solid lump sedimentation connection device to overcome the above defects. Summary of the Utility Model

[0005] Regarding the problems existing in the prior art, the utility model provides a sewage transfer and solid lump sedimentation connection device, which discharges sewage without connecting elbow pipes, reduces the sewage discharge resistance, centrally cleans the solid lumps, and avoids blockage of the conveying pipeline.

[0006] To achieve the above object, the technical solution adopted by the present utility model is as follows: A sewage transfer and solid block sedimentation connection device, including a sedimentation tank, on one side of the sedimentation tank, a number of rows of sewage pipes are horizontally arranged. It also includes a sedimentation tank and a water outlet pipe. Along the sewage transportation direction, a number of rows of sewage pipes, the sedimentation tank, and the water outlet pipe are arranged in sequence. A number of rows of sewage pipes and the water outlet pipe are connected through the sedimentation tank. A number of rows of sewage pipes are connected to the sedimentation tank along the tangential direction of the sedimentation tank. The water outlet directions of a number of rows of sewage pipes and the water outlet direction of the water outlet pipe do not coincide. The bottom ends of a number of rows of sewage pipes are all higher than the top end of the water outlet pipe;

[0007] On the inner wall of the sedimentation tank, a baffle is vertically arranged. The baffle is arranged on the same side of the sedimentation tank as a number of rows of sewage pipes. The baffle is perpendicular to the outward extension direction of a number of rows of sewage pipes. The top end of the baffle is higher than the top end of a number of rows of sewage pipes. The bottom end of the baffle is lower than the bottom end of a number of rows of sewage pipes;

[0008] Below the baffle, a flow dividing plate is provided. One end of the flow dividing plate is fixedly connected to the inner wall of the sedimentation tank. The other end of the flow dividing plate is suspended and inclined downward. A number of holes are provided on the flow dividing plate;

[0009] The end of the water outlet pipe far from the sedimentation tank is connected to an underground drainage pipe. The water outlet pipe and the underground drainage pipe are on the same straight line;

[0010] The bottom of the sedimentation tank is open. A short pipe is connected at the opening. A valve is provided on the short pipe.

[0011] Preferably, a filter screen is provided at the end of a number of rows of sewage pipes close to the sedimentation tank.

[0012] Preferably, valves are provided on a number of rows of sewage pipes, and a valve is provided on the water outlet pipe.

[0013] Preferably, the lower end of the sedimentation tank is in a funnel shape.

[0014] Preferably, a mud receiving tank is provided below the short pipe.

[0015] The advantages of this utility model are as follows:

[0016] 1. By arranging the sedimentation tank between the sewage pipes and the water outlet pipe, the present utility model eliminates the influence caused by the different planes where the axes of the sewage pipes and the water outlet pipe are located. It can complete sewage discharge without using elbow pipes. Solid blocks are uniformly cleaned in the sedimentation tank, and the cleaning efficiency is high.

[0017] 2. The utility model is provided with a baffle plate and a shunt plate. The baffle plate blocks the sewage entering the sedimentation tank to reduce the kinetic energy of the sewage. The shunt plate shunts the sewage blocked by the baffle plate. The baffle plate and the shunt plate jointly reduce the turbulent kinetic energy of the sewage falling into the sedimentation tank, effectively reducing the impact of the sewage on the solid lumps that have settled in the sedimentation tank and reducing the sedimentation time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a sewage transfer and sedimentation connection device for solid lumps.

[0019] Figure 2 It is a top view of the sedimentation tank in a sewage transfer and sedimentation connection device for solid lumps.

[0020] In the figure: 1 - sedimentation pond, 2 - sewage discharge pipeline, 3 - sedimentation tank, 4 - short pipeline, 5 - water outlet pipeline, 6 - underground drainage pipeline, 7 - sludge receiving tank, 8 - baffle plate, 9 - shunt plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] For the convenience of those skilled in the art to understand, the present utility model will be further described below with reference to the accompanying drawings.

[0022] As Figure 1 , 2 shown, a sewage transfer and sedimentation connection device for solid lumps includes a sedimentation pond 1. A number of sewage discharge pipelines 2 are horizontally arranged on one side of the sedimentation pond 1. It also includes a sedimentation tank 3 and a water outlet pipeline 5. Along the sewage transportation direction, a number of sewage discharge pipelines 2, the sedimentation tank 3 and the water outlet pipeline 5 are arranged in sequence. A number of sewage discharge pipelines 2 and the water outlet pipeline 5 are connected through the sedimentation tank 3. A number of sewage discharge pipelines 2 are connected to the sedimentation tank 3 along the tangential direction of the sedimentation tank 3. The water outlet directions of a number of sewage discharge pipelines 2 and the water outlet direction of the water outlet pipeline 5 do not coincide. The bottoms of a number of sewage discharge pipelines 2 are all higher than the top of the water outlet pipeline 5. A baffle plate 8 is vertically arranged on the inner wall of the sedimentation tank 3. The baffle plate 8 and a number of sewage discharge pipelines 2 are arranged on the same side of the sedimentation tank 1. The baffle plate 8 is perpendicular to the outward extension direction of a number of sewage discharge pipelines 2. The top of the baffle plate 8 is higher than the top of a number of sewage discharge pipelines 2. The bottom of the baffle plate 8 is lower than the bottom of a number of sewage discharge pipelines 2. A shunt plate 9 is arranged below the baffle plate 8. One end of the shunt plate 9 is fixedly connected to the inner wall of the sedimentation tank 1. The other end of the shunt plate 9 is suspended and inclined downward. A number of holes are arranged on the shunt plate 9. The end of the water outlet pipeline 5 far from the sedimentation tank 3 is connected to an underground drainage pipeline 6. The water outlet pipeline 5 and the underground drainage pipeline 6 are in a straight line. The bottom of the sedimentation tank 3 is open, and a short pipeline 4 is connected at the opening. A valve is arranged on the short pipeline 4.

[0023] A filter screen (not shown in the figure) is arranged at the end of a number of sewage discharge pipelines 2 close to the sedimentation pond 1. Valves are arranged on a number of sewage discharge pipelines 2. A valve is arranged on the water outlet pipeline 5. The lower end of the sedimentation tank 3 is in a funnel shape. A sludge receiving tank 7 is arranged below the short pipeline 4.

[0024] In the present utility model, the sedimentation tank 3 is arranged between the sewage discharge pipe 2 and the water outlet pipe 5, eliminating the influence caused by the non - coincidence of the water outlet directions and the different heights of the sewage discharge pipe 2 and the water outlet pipe 5. Without using elbow pipes, sewage discharge can be achieved. The solid lumps falling off the sewage discharge pipe 2 due to sewage scouring enter the sedimentation tank 3 with the sewage and are blocked when reaching the baffle 8. The baffle 8 can reduce the kinetic energy of the sewage. The sewage and solid lumps fall along the baffle 8 onto the flow - dividing plate 9. The flow - dividing plate 9 divides the sewage. The sewage flows out from the round holes and the suspended ends of the flow - dividing plate 9 respectively, and the solid lumps fall from the suspended ends of the flow - dividing plate 9. The baffle 8 and the flow - dividing plate 9 jointly reduce the eddy current phenomenon caused by the sewage falling from a high place into the sedimentation tank, reducing the impact on the sewage that has been sedimented and separated in the sedimentation tank, reducing the sedimentation time. The sewage falling from the baffle 8 scours the flow - dividing plate 9, and the solid lumps do not stay on the flow - dividing plate 9. The water outlet pipe 5 and the underground drainage pipe 6 are in a straight line, reducing the sewage discharge resistance. In the sedimentation tank 3, the sewage and solid lumps are divided into upper and lower layers. The upper - layer sewage is discharged from the water outlet pipe 5 and directly enters the underground drainage pipe 6. The pipeline will not be blocked during the sewage discharge process. The solid lumps sedimented at the bottom of the sedimentation tank 3 are discharged into the mud - receiving tank 7 through the short pipe 4 for centralized cleaning, improving the cleaning efficiency.

[0025] Specific operation process

[0026] Open the valve on the sewage discharge pipe 2 to discharge the sewage that meets the discharge standard. The sewage scours the pipe wall of the sewage discharge pipe 2, washing down the solid lumps. The solid lumps flow into the sedimentation tank 3 along with the sewage. When the sewage and solid lumps pass through the baffle 8, they are blocked by the baffle 8 and fall along the baffle 8 onto the flow - dividing plate 9. The sewage flows out from the holes and the suspended ends of the flow - dividing plate 9 respectively, and the solid lumps fall from the suspended ends of the flow - dividing plate 9. The solid lumps are deposited at the bottom of the sedimentation tank 3. When the upper - layer sewage reaches the height of the water outlet pipe 5, open the valve on the water outlet pipe 5. The sewage enters the water outlet pipe 5 from the sedimentation tank 3 and finally flows into the underground drainage pipe 6. Then close the valve on the water outlet pipe 5. After a certain amount of solid lumps are sedimented at the bottom of the sedimentation tank 3, close the valve on the sewage discharge pipe 2 to stop sewage discharge. Open the valve on the short pipe 4. The solid lumps in the sedimentation tank 3 fall into the mud - receiving tank 7. Then close the valve on the short pipe 4 to complete the cleaning. Then open the valve on the sewage discharge pipe 2 to continue discharging sewage.

[0027] It should be understood that the use of these embodiments is only for illustrating the present utility model and is not intended to limit the protection scope of the present utility model. In addition, it should also be understood that after reading the technical content of the present utility model, those skilled in the art can make various changes, modifications, and / or variations to the present utility model, and all these equivalent forms also fall within the protection scope defined by the appended claims of this application.

Claims

1. A sewage transfer and sedimentation connection device for solid lumps, characterized in that, It includes a sedimentation tank (1), on one side of which there are several horizontal sewage pipes (2). It also includes a sedimentation tank (3) and an outlet pipe (5). Along the sewage transportation direction, several of the said sewage pipes (2), the sedimentation tank (3) and the outlet pipe (5) are arranged in sequence. Several of the said sewage pipes (2) and the outlet pipe (5) are connected through the sedimentation tank (3). Several of the said sewage pipes (2) are connected to the sedimentation tank (3) along the tangent direction of the sedimentation tank (3). The outlet directions of several of the said sewage pipes (2) and the outlet direction of the outlet pipe (5) do not coincide. The bottom ends of several of the said sewage pipes (2) are all higher than the top end of the outlet pipe (5). On the inner wall of the sedimentation tank (3), there is a baffle (8) arranged vertically. The baffle (8) is perpendicular to the extending direction of several sewage pipes (2) outward. The baffle (8) and several sewage pipes (2) are arranged on the same side of the sedimentation tank (1). The top end of the baffle (8) is higher than the top ends of several sewage pipes (2), and the bottom end of the baffle (8) is lower than the bottom ends of several sewage pipes (2). Below the baffle (8), there is a flow dividing plate (9). One end of the flow dividing plate (9) is fixedly connected to the inner wall of the sedimentation tank (1), and the other end of the flow dividing plate (9) is suspended and inclined downward. There are several holes on the flow dividing plate (9). The end of the outlet pipe (5) far from the sedimentation tank (3) is connected to an underground drainage pipe (6). The outlet pipe (5) and the underground drainage pipe (6) are in a straight line. The bottom of the sedimentation tank (3) is open, and a short pipe (4) is connected to the opening of the sedimentation tank (3). A valve is provided on the short pipe (4).

2. The sedimentation connection device for sewage transfer and solid lumps according to claim 1, wherein A filter screen is provided at the end of several of the said sewage pipes (2) close to the sedimentation tank (1).

3. A sewage transfer and solid lump sedimentation connection device according to claim 1, characterized in that, Valves are provided on several of the said sewage pipes (2), and a valve is provided on the outlet pipe (5).

4. A sewage transfer and solid block settling connection device according to claim 1, characterized in that, The lower end of the sedimentation tank (3) is funnel-shaped.

5. A sewage transfer and solid block settling connection device according to claim 1, characterized in that, A sludge receiving tank (7) is provided below the short pipe (4).

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