CN220070817U - Vertical flow type efficient sedimentation tank - Google Patents

Abstract

The utility model discloses a vertical flow type efficient sedimentation tank, which comprises a tank body, a sludge pump and a sludge buffer plate, wherein an inlet of the sludge pump is connected with a sludge outlet pipe inserted into the tank body, a multi-port suction disc is inserted into the sludge outlet pipe, the sludge buffer plate is arranged in the tank body, the sludge buffer plate is positioned above the multi-port suction disc, the sludge on the inner wall of the tank body is sucked through a secondary suction pipe attached to the tank body, the sludge is prevented from being remained on the inner wall of the tank body, the sludge discharging effect is improved, the sludge at the bottom of the tank body can be fully discharged, the problem that more sewage is doped in the sludge when the sludge is sucked through arranging the sludge buffer plate above the multi-port suction disc can be effectively solved, the height of a sludge layer is synchronously reduced, a V-shaped pit does not appear in the sludge layer, the thickness of the sludge layer is increased without establishing a deeper sedimentation tank, the depth of the sedimentation tank can be reduced, the material cost is saved, the sludge discharging efficiency is greatly improved, and the vertical flow type sedimentation tank is suitable for small sewage treatment equipment.

Description

Vertical flow type efficient sedimentation tank

Technical Field

The utility model relates to the technical field of sedimentation tanks, in particular to a vertical flow type efficient sedimentation tank.

Background

The vertical flow sedimentation tank is a common device for solid-liquid separation in sewage treatment, is a treatment device for removing suspended particles with density higher than that of water from the water by utilizing the gravity sedimentation effect, is one of treatment units widely applied in sewage treatment, and mainly realizes solid-liquid separation by controlling the rising flow rate of sewage to be lower than the natural sedimentation rate of sludge.

In the related technology, in a general vertical flow sedimentation tank, the structure is shown in figure 1, sewage enters the tank from top to bottom through a water inlet pipe arranged in the tank, an umbrella-shaped baffle is arranged below the water inlet pipe to enable the sewage to slowly rise along the whole water cross section after being uniformly distributed in the tank, suspended matters settle into a conical sedimentation bucket at the bottom of the tank, clarified water flows out from the periphery of the tank along a peripheral overflow weir, the water flow direction is opposite to the particle settling direction, the interception speed is equal to the water flow rising speed, particles with the rising speed equal to the settling speed are suspended in a mixed liquid to form a layer of suspension layer, and the rising particles are intercepted and filtered. A baffle plate and a scum groove are arranged in front of the water outlet weir to intercept scum and ensure the water quality of the water outlet. The bottom of the tank is provided with a sludge discharge pipe, and the sludge is discharged by a pump.

However, when the sludge is discharged from the bottom of the sedimentation tank by the sludge discharge pump, the suction force applied to the sludge close to the suction port of the sludge discharge pump is larger, when the sludge is accumulated into a sludge layer, the sludge above the sludge discharge pump is firstly pumped away, a pit approximately in a V shape is formed in the middle of the sludge layer, and the sludge has weaker fluidity than water, so that the water with stronger fluidity is more than the sludge, and the sludge is more mixed in the suction process.

Disclosure of Invention

The utility model aims to provide a vertical flow type efficient sedimentation tank so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the vertical flow type efficient sedimentation tank comprises a tank body, wherein the lower part of the tank body is arranged in a conical shape;

the inlet of the sludge pump is connected with a sludge outlet pipe inserted into the tank body, and a multi-port sludge suction disc is inserted into the sludge outlet pipe;

the sludge buffering plate is arranged in the tank body and is positioned above the multi-port sludge suction disc.

Further, a main suction pipe is arranged in the middle of the upper surface of the multi-port suction disc, and a plurality of groups of auxiliary suction pipes are arranged at the edge of the upper surface of the multi-port suction disc.

Furthermore, the middle part of the tank body is inserted with a water inlet pipe, and the lower end of the water inlet pipe is provided with a horn mouth.

Further, a supporting rod is arranged on the lower surface of the sludge buffer plate, and the other end of the supporting rod is fixedly connected with the tank body.

Further, a water homogenizing plate is arranged at the lower end of the water inlet pipe of the pond.

Further, the water homogenizing plate is umbrella-shaped, a plurality of separation strips are arranged on the upper surface of the water homogenizing plate, and a flow guide surface is formed between every two adjacent separation strips.

Furthermore, the upper part of the surface of the tank body is provided with an overflow pipe.

Further, a water outlet weir is arranged in the tank body.

Compared with the prior art, the utility model has the beneficial effects that:

(1) Through set up the mud buffer board in many mouthfuls of suction disc top, can effectively solve when sucking mud, mix the problem of more sewage in the mud for the highly synchronous decline of mud layer, the pit of V-arrangement can not appear in the mud layer, does not need to establish the thickness that the deep sedimentation tank increased the mud layer, can reduce the degree of depth of sedimentation tank, has not only practiced thrift the material cost, and improves the mud discharging efficiency greatly, is applicable to some small-size sewage treatment facilities.

(2) Through the mud on the auxiliary suction pipe suction cell body inner wall of laminating with the cell body, prevent that mud from stagnating at the cell body inner wall, improve the effect that mud was arranged completely, the mud at the bottom of the cell body can fully discharge.

(3) The sewage is uniformly distributed into the tank body through the water homogenizing plate, so that sludge precipitation is facilitated, the water outlet weir can control the elevation of the water level in the tank body, and the uniform distribution of water flow in the tank body has direct influence, so that uniform and stable water flow is ensured.

Drawings

FIG. 1 is a schematic diagram of a prior art sedimentation tank;

fig. 2 is a sectional view of a settling tank according to a first embodiment of the present utility model;

fig. 3 is a sectional view of a sedimentation tank of a second embodiment of the present utility model;

FIG. 4 is a top view of the water distribution plate of the present utility model;

fig. 5 is a top view of the multi-port suction disc of the present utility model.

In the figure: 1. a cell body; 2. an overflow pipe; 3. a water inlet pipe; 4. a water homogenizing plate; 6. a sludge buffer plate; 7. a support rod; 8. a sludge pump; 9. a mud outlet pipe; 10. a multi-port suction disc; 11. an auxiliary suction pipe; 12. a separator bar; 13. a flow guiding surface; 14. a main suction pipe; 15. and a water outlet weir.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 2, 4 and 5, the present utility model provides a technical solution: the vertical flow type efficient sedimentation tank comprises a tank body 1, wherein the lower part of the tank body 1 is arranged in a conical shape, so that sludge can be gathered, and the sludge can be drained as much as possible when the sludge is discharged;

the sludge pump 8, the inlet of the sludge pump 8 is connected with a sludge outlet pipe 9 inserted into the tank body 1, and a multi-port sludge suction disc 10 is inserted into the sludge outlet pipe 9;

the multi-port suction disc 10 can be used for extracting sludge in multiple directions, so that collapse of a central area of the sludge is avoided, the sludge is prevented from forming a funnel-shaped cavity, the sludge is discharged completely, clear water above the sludge is prevented from directly entering the sludge outlet pipe 9, and the water content in the sludge is reduced;

the sludge buffering plate 6, inside the pond body 1 is arranged in to the inside of sludge buffering plate 6, and sludge buffering plate 6 is located many mouthfuls of suction disc 10 top.

The sludge buffer plate 6 is conical, so that the sludge can flow down along the sludge buffer plate 6, the discharge of the sludge can not be blocked, the sludge buffer plate 6 blocks the pumping force of the sludge pump 8, and the sludge is prevented from being pumped into a funnel shape.

As shown in fig. 5, a main suction pipe 14 is disposed in the middle of the upper surface of the multi-port suction disc 10, and a plurality of groups of auxiliary suction pipes 11 are disposed at the edge of the upper surface of the multi-port suction disc 10.

The diameter of the main suction pipe 14 is larger than that of the auxiliary suction pipe 11, and when the main suction pipe 14 and the auxiliary suction pipe 11 pump sludge, the height of a sludge layer can be controlled to be uniformly reduced, so that more sewage is prevented from being mixed into the sludge.

In this embodiment, as shown in fig. 1, the middle part of the tank body 1 is inserted with a water inlet pipe 3, and the lower end of the water inlet pipe 3 is provided with a bell mouth, which is beneficial for sewage to uniformly flow to the surface of the water homogenizing plate 4.

In this embodiment, as shown in fig. 1, a supporting rod 7 is disposed on the lower surface of the sludge buffering plate 6, the other end of the supporting rod 7 is fixedly connected with the tank body 1, and the supporting rod 7 is L-shaped to fix the sludge buffering plate 6 to the middle of the tank body 1.

In this embodiment, as shown in fig. 1, a water homogenizing plate 4 is installed at the lower end of the tank water inlet pipe 3, and the water homogenizing plate 4 is connected with a bell mouth to fix the water homogenizing plate 4, and the water homogenizing plate 4 diffuses sewage to the various positions of the tank body 1, so that the sewage slowly rises along the whole water cross section.

In this embodiment, as shown in fig. 4, the water homogenizing plate 4 is umbrella-shaped, a plurality of separation strips 12 are disposed on the upper surface of the water homogenizing plate 4, and a diversion surface 13 is formed between adjacent separation strips 12, so that sewage flows along the diversion surface 13, and uniform distribution of sewage and sludge is facilitated.

In this embodiment, as shown in fig. 1, an overflow pipe 2 is disposed at the upper portion of the surface of the tank body 1, an effluent weir 15 is disposed inside the tank body 1, and the height of the overflow pipe 2 is slightly higher than that of the effluent weir 15.

Specifically, during the use, sewage flows to the even water board 4 through inlet tube 3, under the water conservancy diversion effect of even water board 4 for sewage evenly diffuses in cell body 1, is favorable to mud evenly to sink and forms the mud layer, and when starting sludge pump 8 to extract mud, the ascending suction of main straw 14 is blocked by mud buffer board 6, prevents that the problem of V-arrangement pit from appearing in the mud layer, makes the mud layer can block sewage entering sludge pump 8, ensures that sludge pump 8 exhaust mud water content is less.

Example two

Referring to fig. 3, the difference from the first embodiment is that: when the sludge pump 8 is started to pump sludge, the upward suction force of the main suction pipe 14 is blocked by the sludge buffer plate 6, so that the problem of V-shaped pits on the sludge layer is prevented, the sludge at the edge of the auxiliary suction pipe 11 is pumped by matching at the moment, the height of the whole sludge layer is consistently reduced, the sludge layer can block sewage from entering the sludge pump 8, and the purpose of less water content of the sludge can be achieved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a vertical flow formula high efficiency sedimentation tank which characterized in that includes:

the device comprises a tank body (1), wherein the lower part of the tank body (1) is arranged in a conical shape;

the sludge pump (8), the inlet of the sludge pump (8) is connected with a sludge outlet pipe (9) inserted into the tank body (1), and a multi-port sludge suction disc (10) is inserted into the sludge outlet pipe (9);

the sludge buffering plate (6), inside the pond body (1) is arranged in to sludge buffering plate (6), and sludge buffering plate (6) are located many mouthfuls of suction disc (10) top.

2. The vertical-flow type efficient sedimentation tank as set forth in claim 1, wherein: the middle part of the upper surface of the multi-port mud sucking disc (10) is provided with a main suction pipe (14), and the edge of the upper surface of the multi-port mud sucking disc (10) is provided with a plurality of groups of auxiliary suction pipes (11).

3. The vertical-flow type efficient sedimentation tank as set forth in claim 1, wherein: the middle part of the tank body (1) is inserted with a water inlet pipe (3), and the lower end of the water inlet pipe (3) is provided with a horn mouth.

4. The vertical-flow type efficient sedimentation tank as set forth in claim 1, wherein: the lower surface of the sludge buffer plate (6) is provided with a supporting rod (7), and the other end of the supporting rod (7) is fixedly connected with the tank body (1).

5. A vertical flow type high efficiency sedimentation tank as set forth in claim 3, wherein: the lower end of the water inlet pipe (3) is provided with a water homogenizing plate (4).

6. The vertical flow type efficient sedimentation tank of claim 5, wherein: the water homogenizing plate (4) is umbrella-shaped, a plurality of groups of separation strips (12) are arranged on the upper surface of the water homogenizing plate (4), and a diversion surface (13) is formed between every two adjacent separation strips (12).

7. The vertical-flow type efficient sedimentation tank as set forth in claim 1, wherein: the upper part of the surface of the tank body (1) is provided with an overflow pipe (2).

8. The vertical flow type efficient sedimentation tank of claim 7, wherein: an effluent weir (15) is arranged in the tank body (1).