Sedimentation tank for wastewater treatment

Abstract

The utility model discloses a sedimentation tank for wastewater treatment, and relates to the technical field of wastewater treatment, the sedimentation tank for wastewater treatment comprises a preliminary sedimentation tank, the preliminary sedimentation tank comprises a human-shaped sludge discharge pipe, a screening area and a buffer area, the front and back of the interior of the screening area are respectively provided with a chute opening I, and the chute openings I are in sliding connection with a screening net; second notches are formed in the upper ends of the buffer areas, each notch is connected with a flow limiting plate in a sleeving mode, the left end of the primary sedimentation tank is fixedly connected with a human-shaped sludge discharge pipe, large particles in wastewater can be removed, and water flow can be slowed down, a secondary sedimentation tank is arranged at the right end of the primary sedimentation tank, and three supporting rods are fixed to the periphery of the interior of the secondary sedimentation tank; a supporting plate is arranged in the middle of the interior of the secondary sedimentation tank, a rectangular through notch is formed in the supporting plate, a funnel is arranged on the supporting plate and fixedly connected with the supporting plate, a conveying pipe is arranged on the left side of the funnel, two fourth notches are formed in the upper end of the conveying pipe, and the lower end of the conveying pipe is fixedly connected with the left end of the funnel, so that secondary treatment of wastewater is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a sedimentation tank for wastewater treatment. Background Art

[0002] The purpose of using screens in wastewater treatment is to reduce the treatment of large insoluble substances and floating materials in wastewater to ensure that subsequent devices are not damaged by them. The purpose of using two different flow restrictors is to slow down the flow of wastewater into the secondary sedimentation tank according to the situation, avoiding the wear of subsequent equipment due to uneven water flow or excessive speed. The following are several main reasons for using screens and latches in wastewater treatment:

[0003] 1. High efficiency: The screening net can quickly and effectively remove suspended matter from sewage and improve treatment efficiency.

[0004] 2. Environmental protection: The use of screening nets can reduce the load of subsequent processing procedures, avoid secondary pollution, and meet environmental protection requirements.

[0005] 3. Optimize hydraulic conditions: The flow limiting plate can reduce the turbulence and disturbance of the water flow and create hydraulic conditions that are more favorable for the precipitation of tiny suspended matter.

[0006] 4. Reduce maintenance costs: The use of flow limiting plates can reduce equipment wear and maintenance problems caused by uneven water flow, and extend the service life of the equipment.

[0007] In general, the use of screening nets and flow restrictors improves the efficiency of wastewater treatment and facilitates the sedimentation of tiny suspended solids.

[0008] However, during the implementation of the above technical solution, it was found that there were at least the following technical problems:

[0009] In the process of wastewater treatment, some equipment cannot handle larger insoluble particles and suspended solids in the wastewater. Excessive or uneven water flow speed will lead to excessive processing load in subsequent processes. In order to solve the above technical problems, a sedimentation tank for wastewater treatment is proposed. Utility Model Content

[0010] 1. Technical issues to be solved

[0011] In view of the deficiencies in the prior art, the utility model provides a sedimentation tank for wastewater treatment, which solves the technical problems that during the wastewater treatment process, some equipment cannot treat larger insoluble particles and suspended matter in the wastewater, and the excessive or uneven water flow rate will lead to excessive processing load in subsequent processes.

[0012] (II) Technical solution

[0013] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0014] A sedimentation tank for wastewater treatment comprises a preliminary sedimentation tank, wherein the preliminary sedimentation tank comprises a humanoid mud discharge pipe, a screening area and a buffer zone, wherein an inclined slot one is provided at the front and rear of the middle of the screening area, wherein the inclined slot one is slidably connected to the screening net, wherein a slot two is provided at the upper end of the buffer zone, wherein each slot two is plugged with a flow limiting plate, wherein the left end of the preliminary sedimentation tank is fixedly connected to the humanoid mud discharge pipe, wherein a secondary sedimentation tank is provided at the right end of the preliminary sedimentation tank, wherein three support rods are fixedly connected to the four sides of the interior of the secondary sedimentation tank, wherein a support plate is provided in the middle of the interior of the secondary sedimentation tank, wherein a rectangular through slot five is provided on the support plate, wherein a funnel is provided on the support plate, wherein the bottom of the funnel passes through the rectangular through slot five and is fixedly connected to the upper surface of the support plate, wherein a conveying pipe is provided on the left side of the funnel, wherein two slots four are provided at the upper end of the conveying pipe, and wherein the lower end of the conveying pipe is fixedly connected to the left end of the funnel.

[0015] Preferably, the front and rear sides and the left side of the screening net are fitted with the corresponding sides of the screening area, the plug plate in the screening net is slidably connected with the slot five, and the circular slot six is ​​sleeved with the right end of the mud discharge pipe located on the left side.

[0016] Preferably: a handle is fixedly connected to the upper end of the limiting plate, two inserts with triangular buckles at the ends are fixedly connected to the front and rear ends of each limiting plate, fifteen circular notches 7 are opened at the lower end of the limiting plate on the right side, and a through notch 8 is opened on the right side of each limiting plate.

[0017] Preferably, the delivery pipe is fixedly connected to the slot three, and the outer radius of the delivery pipe is the same as the radius of the circular through-slot.

[0018] Preferably, the caliber of the second slot is the same as the caliber of the two fourth slots, and the two second slots are aligned with the two fourth slots.

[0019] Preferably, the bottom of the funnel passes through the rectangular through-slot nine and is fixedly connected to the support plate, and the lower side of the front end of the funnel is fixedly connected with a mud discharge pipe.

[0020] (III) Beneficial effects

[0021] 1. The screening net can be used to quickly and effectively remove larger suspended solids in wastewater, reducing the load of larger suspended solids on subsequent process flow. The simple structure of the screening net allows operators to select a suitable screening net according to the wastewater to be treated.

[0022] 2. The use of flow limiting plates can make the wastewater flow evenly during the flow process, reducing damage to subsequent process equipment. The use of flow limiting plates can effectively control and adjust the water flow rate, so that smaller particles in the wastewater have sufficient time to settle. The use of funnels can allow small particles in the wastewater to settle, achieving the effect of secondary sedimentation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0024] Figure 1 It is the overall structure diagram of the utility model;

[0025] Figure 2 It is a top view of the overall structure of the utility model;

[0026] Figure 3 This is a structural diagram of the current limiting part in the utility model;

[0027] Figure 4 This is a structural diagram of the screening area in the overall utility model;

[0028] Figure 5 This is the structural diagram of the secondary sedimentation tank in the utility model.

[0029] Legend: 1. Human-shaped mud pipe; 2. Water inlet pipe; 3. Water outlet pipe 2; 4. Buffer zone; 5. Mud pipe; 6. Secondary sedimentation tank; 7. Tertiary sedimentation tank; 8. Inclined pipe; 9. Screening net; 10. Screening area; 11. Water outlet tank; 12. Delivery pipe; 13. Funnel; 14. Water outlet pipe 1; 15. Support plate; 16. Support rod; 17. Right-angle pipe; 18. Handle; 19. Flow limiting plate; 20. Insert; 21. Through slot 8; 22. Slot 4; 23. Circular slot 7; 24. Circular slot 6; 25. Inclined slot 1; 26. Insert; 27. Slot 2; 28. Slot 9; 29. ​​Rectangular through slot 5; 30. Slot 3; 31. Water outlet channel. DETAILED DESCRIPTION

[0030] The embodiment of the present application provides a name to effectively solve the technical problems in the wastewater treatment process, that is, some equipment cannot treat larger insoluble particles and suspended matter in the wastewater, and the water flow rate is too high or uneven, which will cause excessive processing load in subsequent processes.

[0031] Example

[0032] The overall idea of ​​the technical solution in the embodiment of the present application is as follows:

[0033] In view of the problems existing in the prior art, the utility model provides a sedimentation tank for wastewater treatment, including a secondary sedimentation tank 6, a tertiary sedimentation tank 7, an inclined pipe 8, a mud discharge pipe 5, a right-angle pipe 17, a water outlet pipe 23 and a water outlet tank 11. Three support rods 16 are fixed around the inside of the secondary sedimentation tank 6. A support plate 15 is provided in the middle of the secondary sedimentation tank 6. A rectangular through-notch 5 29 is provided on the upper surface of the support plate 15. The support plate 15 is fixedly connected to each of the support rods 16 around the support plate 15. A funnel 13 is provided on the support plate 15. The bottom of the funnel 13 passes through the rectangular through-notch 5 29 and is fixedly connected to the upper surface of the support plate 15. The upper side of the funnel 13 Three outlet pipes 14 are fixed around the funnel 13, a mud discharge pipe 5 is fixedly connected to the lower side of the front end of the funnel 13, a slot 30 is provided at the lower end of the left side of the funnel 13, a delivery pipe 12 is provided on the left side of the funnel 13, two slots 4 22 are provided at the upper end of the delivery pipe 12, the caliber of the slot 27 is the same as the caliber of the two slots 4 22, the two slots 27 are aligned with the two slots 4 22, the delivery pipe 12 is fixedly connected to the slot 9 28, the outer radius of the delivery pipe 12 is the same as the radius of the slot 9 28, an outlet channel 31 is fixedly connected to the right side of the secondary sedimentation tank 6, and a preliminary sedimentation tank is provided on the left side of the secondary sedimentation tank 6;

[0034] The preliminary sedimentation tank includes a humanoid mud discharge pipe 1, a screening area 10 and a buffer zone 4. The front and back sides of the screening area 10 are both provided with an oblique slot 1 25. A screening net 9 is provided inside the screening area 10. The front and back sides and the left side of the screening net 9 are in contact with the corresponding sides of the screening area 10. A circular slot 6 24 is provided on the left side of the screening net 9. The circular slot 6 24 is sleeved with the right end of the mud discharge pipe 5 located on the left side. The inclined side of the screening net 9 is fixedly connected with a plug plate 26. The plug plate 26 is slidably connected with the oblique slot 1 25. Two slots 27 are provided at the upper end of the right side of the buffer zone 4. Each slot 27 is plugged with a limiting plate 19. A handle 18 is fixedly connected to the upper end of each limiting plate 19. The front and rear ends of each limiting plate 19 are fixedly connected with two inserts 20 with triangular buckles at the ends. Two through slots 8 21 are provided on the right side of each limiting plate 19. Fifteen circular slots 7 23 are provided at the lower end of the limiting plate 19 located on the right side.

[0035] Working principle: The operator connects the wastewater pipe to the water inlet pipe 2 on the left side, and the wastewater in the water inlet pipe 2 enters the screening area 10. The wastewater passes through the screening net 9 in the screening area 10 to screen out insoluble suspended matter and impurities. The screened wastewater enters the buffer zone 4 through the slot on the partition plate in the primary sedimentation zone. After staying in the buffer zone 4 for a period of time, the wastewater passes through the slot 9 28. Before passing through the slot 9 28, the operator can reduce the speed of the wastewater by selecting different flow limiting plates 19, and then enters the funnel 13 in the secondary sedimentation tank 6 through the delivery pipe 12. The tiny The suspended matter settles under the action of gravity, and the slightly turbid water enters the secondary sedimentation tank 6 through the outlet pipe 14 on the funnel 13. The water in the secondary sedimentation tank 6 enters the bottom of the tertiary sedimentation tank 7 through the right-angle pipe 17. The water then passes through the inclined pipe 8 inside the tertiary sedimentation tank 7, and the water rises along the inclined pipe 8. The smaller particles in the water settle to the bottom along the inclined pipe 8 under gravity. The pure water at the upper end passes through the outlet channel 31 at the upper right end of the tertiary sedimentation tank 7. The water in the outlet channel 31 enters the outlet tank 11 through the notch, and the treated water can go out from the outlet pipe 2 3.

[0036] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A sedimentation tank for wastewater treatment, comprising a secondary sedimentation tank (6), a tertiary sedimentation tank (7), an inclined pipe (8), a mud discharge pipe (5) and a water outlet tank (11), characterized in that Three support rods (16) are fixed around the inside of the secondary sedimentation tank (6), a support plate (15) is provided inside the secondary sedimentation tank (6), a rectangular through-notch five (29) is provided on the upper surface of the support plate (15), the support plate (15) is fixedly connected to each of the support rods (16) around, a funnel (13) is provided on the support plate (15), three outlet pipes (14) are fixedly connected around the upper side of the funnel (13), a notch three (30) is provided at the lower end of the left side of the funnel (13), a delivery pipe (12) is provided on the left side of the funnel (13), two notches four (22) are provided at the upper end of the delivery pipe (12), and a preliminary sedimentation tank is provided on the left side of the secondary sedimentation tank (6); The preliminary sedimentation tank comprises a humanoid mud discharge pipe (1), a screening area (10) and a buffer zone (4); the front and rear sides of the screening area (10) are both provided with an inclined slot opening (25); a screening net (9) is provided in the middle of the screening area (10); a circular slot opening (24) is provided on the left side of the screening net (9); a plug plate (26) is fixed on the front and rear ends of an inclined surface of the screening net (9); two slot openings (27) are provided on the upper end of the right side of the buffer zone (4); each slot opening (27) is plugged with a limiting current plate (19).

2. A sedimentation tank for wastewater treatment as claimed in claim 1, characterized in that: The front and rear surfaces and the left side surface of the outer side of the screening net (9) are in contact with the corresponding surfaces inside the screening area (10); The plug plate (26) in the screening net (9) is slidably connected to the inclined slot opening 1 (25), and the circular slot opening 6 (24) is sleeved to the right end of the water inlet pipe (2).

3. A sedimentation tank for wastewater treatment as claimed in claim 2, characterized in that: The upper end of the limiting plate (19) is fixedly connected to a handle (18), and the front and rear ends of each limiting plate (19) are fixedly connected to two inserting strips (20) with triangular buckles at the ends, and the right side of each limiting plate (19) is provided with two through notches eight (21); Among them, fifteen circular notches (23) are provided at the lower end of the current limiting plate (19) located on the right side.

4. A sedimentation tank for wastewater treatment as claimed in claim 1, characterized in that: The bottom of the funnel (13) passes through a rectangular through slot five (29) and is fixedly connected to the support plate (15), and the lower side of the front end of the funnel (13) is fixedly connected to a mud discharge pipe (5).

5. A sedimentation tank for wastewater treatment as claimed in claim 1, characterized in that: The delivery pipe (12) is fixedly connected to the slot nine (28), and the outer radius of the delivery pipe (12) is the same as the radius of the slot nine (28).

6. A sedimentation tank for wastewater treatment as claimed in claim 1, characterized in that: The diameter of the second slot (27) is the same as that of the two fourth slots (22), and the two second slots (27) are aligned with the two fourth slots (22).

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