CN205419898U - A sewage treatment sludge extraction device - Google Patents

Abstract

The utility model discloses a sewage treatment sludge extraction structure, which comprises a grid pond, a sludge pond, a biological treatment pond and a sedimentation pond, wherein a first air supply pipe is inserted into the biological treatment pond, the first air supply pipe is connected with an air compressor for providing oxygen, a sludge return pipe is arranged above the sludge pond and the grid pond, a sludge extraction pipe communicated with the sludge return pipe is inserted into the sedimentation pond, the sludge extraction pipe is provided with an extraction opening, a second air supply pipe communicated with the sludge extraction pipe is arranged above the extraction opening and clings to the extraction opening, the second air supply pipe is connected with an air supply mechanism, the density of a sewage mixture in the sludge extraction pipe above the extraction opening is reduced by the air supplied by the air supply mechanism through the second air supply pipe, so that the sewage mixture rises along the sludge extraction pipe to generate negative pressure, and sludge can be continuously sucked into the sludge extraction pipe from the extraction opening and transferred to other places, simple structure has replaced the mode that utilizes the water pump to extract mud, greatly reduced cost and energy consumption.

Description

A sewage treatment sludge extraction device

technical field

The utility model relates to a sewage purification system, in particular to a sewage treatment sludge extraction device.

Background technique

At present, there is a sludge sedimentation process in the process of sewage treatment. The sewage needs to be introduced into the sedimentation tank for sedimentation, and then the sludge obtained from the sedimentation is lifted by a water pump, part of which is returned to the biological treatment tank, and the other part of the sludge is discharged from the treatment system. This process generally requires two water pumps, both of which are controlled by motor control equipment, which has high daily operating costs and high energy consumption.

Contents of the invention

In order to overcome the deficiencies of the prior art, the utility model provides a sewage treatment sludge extraction device with simple structure and low cost.

The technical scheme that the utility model solves its technical problem adopts is:

A sewage treatment sludge extraction device, comprising a grid tank, a sludge tank, a biological treatment tank and a sedimentation tank, a first air supply pipe is inserted in the biological treatment tank, and the first air supply pipe is connected with air supplying oxygen A compressor, a sludge return pipe is installed above the sludge tank and the grid tank, a sludge extraction pipe connected to the sludge return pipe is inserted in the sedimentation tank, and the sludge extraction The pipe is provided with an extraction port, and a second air supply pipe connected to the sludge extraction pipe is arranged close to the extraction port and above the extraction port, and the second air supply pipe is connected with an air supply pipe. mechanism.

The first air supply pipe communicates with the second air supply pipe.

A first air valve is installed on the second air delivery pipe.

A second air valve is installed on the second air delivery pipe at the front end of the first air valve.

The upper end of the sludge extraction pipe is equipped with a coupler communicating with the sludge extraction pipe,

The sludge return pipe is installed on the combiner.

The sludge return pipe is installed with a first water valve at the sludge tank.

A second water valve is installed near the grid pool on the sludge return pipe.

The beneficial effects of the utility model are: the sludge extraction pipe of the present utility model is provided with an extraction port, and a second air supply pipe connected to the sludge extraction pipe is arranged close to the extraction port and above the extraction port. The gas sent by the second air supply pipe will reduce the density of the sewage mixture in the sludge extraction pipe above the extraction port, so that the sewage mixture will rise along the sludge extraction pipe to generate negative pressure, and the sludge will be discharged from the extraction port. It is continuously sucked into the sludge extraction pipe and transferred to other places. It has a simple structure and replaces the method of using a water pump to extract sludge, which greatly reduces the cost and energy consumption; the return flow of sludge is controlled by the first air valve to control the air volume. , The operator can adjust according to the site conditions, the flow control is convenient, and the operation is simple.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is the overall structural representation of the utility model;

Figure 2 is an enlarged sectional view of the structure at A in Figure 1;

Fig. 3 is an enlarged cross-sectional view of the structure at B in Fig. 1 .

detailed description

Referring to Figures 1 to 3, a sewage treatment sludge extraction device includes a grid tank 1, a sludge tank 2, a biological treatment tank 3 and a sedimentation tank 4, and a first air supply pipe is inserted in the biological treatment tank 3 5. The first air supply pipe 5 is connected to an air compressor 6 that provides oxygen, a sludge return pipe 7 is installed above the sludge pool 2 and the grid pool 1, and a sludge return pipe 7 is inserted in the sedimentation tank 4. A sludge extraction pipe 8 connected to the sludge return pipe 7, the sludge extraction pipe 8 is provided with an extraction port 9, close to the extraction port 9 and located above the extraction port 9 A second air supply pipe 10 communicating with the sludge extraction pipe 8 is provided, and the second air supply pipe 10 is connected with an air supply mechanism, and the gas sent by the air supply mechanism through the second air supply pipe will be located at the top of the extraction port. The density of the sewage mixture in the sludge extraction pipe becomes smaller, so that the sewage mixture rises along the sludge extraction pipe to generate negative pressure, and the sludge can be continuously sucked into the sludge extraction pipe from the extraction port and transferred to other places. It has a simple structure and replaces the method of using a water pump to pump sludge, which greatly reduces costs and energy consumption.

In order to produce a better negative pressure effect, in this embodiment, the second air supply pipe 10 is inserted into the sludge extraction pipe 8, and the opening of the second air supply pipe 10 is directed to the direction of sludge movement in the sludge extraction pipe.

In this embodiment, the first air supply pipe 5 communicates with the second air supply pipe 10 , so that only the residual air provided by the air compressor 6 can be used without connecting other compressors.

In order to speed up the recovery speed of sludge, several sludge return pipes 7 and second air supply pipes 10 matched with the sludge return pipe 7 can be inserted in the settling tank 4. In this embodiment, there are four second air supply pipes 10 and 4 sludge return pipes 7, the first air valve 11 is installed on the second air supply pipe 10, the sludge return flow is controlled by the first air valve 11 to control the air volume, the operator can adjust according to the site conditions, the flow control Convenient and simple to operate, the second air valve 12 is installed on the front end of the first air valve 11 on the second air supply pipe 10, and there are four second air valves 12 to control one second air supply pipe 10 respectively.

The upper end of the sludge extraction pipe 8 is equipped with a coupler 13 communicating with the sludge extraction pipe 8, and the sludge return pipe 7 is installed on the coupler 13 to collect 4 sludges The sludge sucked by return pipe 7.

The sludge return pipe 7 is located at the sludge tank 2 and is equipped with a first water valve 14 for controlling the sludge flowing to the sludge tank 2 .

A second water valve 15 is installed near the grid tank 1 on the sludge return pipe 7 for controlling the sludge flowing to the grid tank 1 .

Claims (7)

1. null1. a sewage disposal mud extraction device，Including grid pond (1)、Sludge-tank (2)、Biological treatment tank (3) and sedimentation tank (4)，Described biological treatment tank (3) has been inserted into the first snorkel (5)，Described first snorkel (5) connects the air compressor (6) being provided with oxygen，Described sludge-tank (2) and described grid pond (1) be arranged above mud return line (7)，It is characterized in that described sedimentation tank (4) is inserted into the mud extraction tube (8) connected with described mud return line (7)，Described mud extraction tube (8) is provided with extracting mouth (9)，It is close to described extracting mouth (9) and is positioned at second snorkel (10) being provided above connecting with described mud extraction tube (8) of described extracting mouth (9)，Described second snorkel (10) connects gas supply mechanism.
2. Sewage disposal mud extraction device the most according to claim 1, it is characterised in that described first snorkel (5) connects with described second snorkel (10).
3. Sewage disposal mud extraction device the most according to claim 2, it is characterised in that be provided with the first air valve (11) on described second snorkel (10).
4. Sewage disposal mud extraction device the most according to claim 3, it is characterised in that the front end being positioned at described first air valve (11) on described second snorkel (10) is provided with the second air valve (12).
5. Sewage disposal mud extraction device the most according to claim 1, it is characterized in that the upper end of described mud extraction tube (8) is provided with the colligator (13) connected with described mud extraction tube (8), described mud return line (7) is arranged on described colligator (13).
6. Sewage disposal mud extraction device the most according to claim 1, it is characterised in that described mud return line (7) is positioned at described sludge-tank (2) place and is provided with the first water valve (14).
7. Sewage disposal mud extraction device the most according to claim 1, it is characterised in that described mud return line (7) is provided with the second water valve (15) near the place of described grid pond (1).