CN211367333U - An activated sludge process sewage treatment device - Google Patents

Abstract

The utility model relates to the technical field of sewage treatment, and discloses an activated sludge process sewage treatment device, which solves the problems of low mixing rate of sewage and sludge in a reaction chamber and low sewage treatment effect, and comprises a reaction box body and a precipitation bin, wherein the reaction box body is internally divided into a first reaction chamber and a second reaction chamber through a partition plate, a first rotating shaft is vertically and rotatably arranged on one side of the upper end of the reaction box body, the lower end of the first rotating shaft extends into the first reaction chamber, a first belt pulley is fixed on the top end of the first rotating shaft, a second rotating shaft is vertically and rotatably arranged on the other side of the upper end of the reaction box body, the lower end of the second rotating shaft extends into the second reaction chamber, a second belt pulley is fixed on the top end of the second rotating shaft, a through groove is arranged on the partition plate, an air pipe is arranged on the partition plate in a penetrating way, and two reaction chambers are arranged in the reaction box, the sewage treatment efficiency is improved.

Description

An activated sludge process sewage treatment device

technical field

The utility model relates to the technical field of sewage treatment, in particular to an activated sludge method sewage treatment device.

Background technique

Activated sludge wastewater treatment technology is the most commonly used in wastewater aerobic treatment technology. It consists of aeration tank (reaction tank), sedimentation tank, return sludge and excess sludge removal system. The core unit is the aeration tank, which is filled with air through the aeration equipment, and the oxygen in the air dissolves into the sewage to produce an aerobic metabolic reaction in the activated sludge mixture. The mixed liquid flows into the sedimentation tank, where the suspended solids are separated from the water in the sedimentation tank to form sludge, and most of it is returned to the aeration tank. However, the existing circulating activated sludge sewage treatment device mostly uses one reaction chamber, resulting in low mixing ratio of sewage and sludge inside the reaction chamber, and low sewage treatment effect. Therefore, we propose an activated sludge method sewage treatment device to Solve the above problem.

Utility model content

The purpose of the utility model is to solve the disadvantages of low mixing ratio of sewage and sludge inside the reaction chamber and low sewage treatment effect in the prior art, and proposes an activated sludge method sewage treatment device.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

An activated sludge process sewage treatment device includes a reaction box and a sedimentation bin, the interior of the reaction box is divided into a first reaction chamber and a second reaction chamber by a partition, and the upper side of the reaction box is vertical A first rotating shaft is rotatably installed, the lower end of the first rotating shaft extends into the first reaction chamber, the top of the first rotating shaft is fixed with a first pulley, and the other side of the upper end of the reaction box is vertically rotatably installed with a first pulley. Two rotating shafts, the lower end of the second rotating shaft extends into the second reaction chamber, and the top of the second rotating shaft is fixed with a second pulley, the partition plate is provided with a through groove, and the partition plate is provided through There are air pipes, several aeration heads are installed on the air pipes, a first sewage inlet pipe and a water inlet pipe are arranged on one side outer wall of the reaction box, and a discharge material is fixed on the other side outer wall of the reaction box The pipe and the exhaust gas outlet, and the outer end of the discharge pipe is connected with the sedimentation chamber through a connecting pipe;

A filter plate is fixed at the inner upper end of the sedimentation chamber, a drain port is provided on one side of the sedimentation chamber, and a sludge collection box is arranged at the bottom end of the sedimentation chamber, and a sludge pump is arranged inside the sludge collection box.

Preferably, the top end of the first rotating shaft is provided with a motor, the motor is fixed on the top end of the reaction box through a mounting frame, and the output end of the motor is concentrically and fixedly connected to the first rotating shaft.

Preferably, the first pulley and the second pulley are connected by a V-belt.

Preferably, stirring impellers are installed on the bottom ends of the first rotating shaft and the second rotating shaft.

Preferably, a second sewage inlet pipe is welded on the sedimentation tank, the second sewage inlet pipe is located below the filter plate, and one end of the connecting pipe away from the discharge pipe is connected to the second sewage inlet pipe. Tube connection.

Preferably, the water outlet is located above the filter plate, a decanter is fixed inside the sedimentation chamber, and the output end of the decanter is connected to the water outlet.

Preferably, the bottom end of the sludge collection box is provided with a sewage pipe, and the sewage pipe is connected to the first sewage inlet pipe through a sewage return pipe.

The beneficial effects of the present utility model are:

1. There are two reaction chambers in the reaction box, and the stirring impeller is driven by the motor to stir the two reaction chambers at the same time, thereby improving the mixing uniformity of activated sludge and sewage, and improving the efficiency of sewage treatment.

2. The sludge in the sedimentation tank is blocked by the filter plate to separate the sludge from the sewage, thereby further improving the sewage treatment effect and facilitating the recycling of the activated sludge.

Description of drawings

Fig. 1 is the structural representation of a kind of activated sludge process sewage treatment device proposed by the utility model;

FIG. 2 is a schematic structural diagram of a sedimentation tank in an activated sludge process sewage treatment device proposed by the utility model.

In the figure: 1 reaction box, 2 partition plate, 3 channel, 4 first sewage inlet pipe, 5 exhaust gas outlet, 6 motor, 7 first rotating shaft, 8 second rotating shaft, 9 first pulley, 10 second Pulley, 11 stirring impeller, 12 discharge pipe, 13 sedimentation bin, 14 sludge collection box, 15 second sewage inlet pipe, 16 sewage discharge pipe, 17 connecting pipe, 18 sewage return pipe, 19 air pipe, 20 water outlet, 21 filter Plate, 22 decanter, 23 sludge pump, 24 water inlet pipe, 25 aeration head.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example.

1-2, an activated sludge process sewage treatment device includes a reaction box 1 and a sedimentation chamber 13. The interior of the reaction box 1 is divided into a first reaction chamber and a second reaction chamber by a partition 2, and the reaction The upper end side of the box body 1 is vertically rotated and installed with a first rotating shaft 7, and the top of the first rotating shaft 7 is provided with a motor 6. The motor 6 is fixed on the top of the reaction box 1 through a mounting frame, and the output end of the motor 6 is installed. Concentrically and fixedly connected with the first rotating shaft 7, the lower end of the first rotating shaft 7 extends into the first reaction chamber, the top of the first rotating shaft 7 is fixed with a first pulley 9, and the other side of the upper end of the reaction box 1 is vertical A second rotating shaft 8 is rotatably installed. Both the second rotating shaft 8 and the first rotating shaft 7 are rotatably mounted on the reaction box 1 through bearings. The lower end of the second rotating shaft 8 extends into the second reaction chamber, and the second rotating shaft 8 is rotated. The top end of the shaft 8 is fixed with a second pulley 10, the second pulley 10 and the first pulley 9 are connected by a V-belt, and the bottom ends of the first rotating shaft 7 and the second rotating shaft 8 are both installed with stirring impellers 11. The plate 2 is provided with a through groove 3, which is convenient for the flow of sewage in the two reaction chambers, and a gas pipe 19 is arranged through the partition plate 2. The two ends of the gas pipe 19 are respectively located in the reaction chambers on both sides, and eight aeration pipes are installed on the gas pipe 19. The head 25, the gas pipe 19 are connected with the external air pump through the pipeline, the first sewage inlet pipe 4 and the water inlet pipe 24 are welded on one side outer wall of the reaction box 1, and the water inlet pipe 24 is located at the upper end of the reaction box 1, and the reaction box 1 A discharge pipe 12 and an exhaust gas outlet 5 are welded and fixed on the outer wall of the other side of the casing, and the outer end of the discharge pipe 12 is connected to the sedimentation bin 13 through a connecting pipe 17;

A filter plate 21 is fixed on the inner upper end of the sedimentation chamber 13, and a drainage port 20 is provided on one side of the sedimentation chamber 13. The drainage outlet 20 is located above the filter plate 21, and a decanter 22 is fixed inside the sedimentation chamber 13 to decanter the water. The output end of the device 22 is connected with the water outlet 20, the second sewage inlet pipe 15 is welded on the sedimentation chamber 13, the second sewage inlet pipe 15 is located under the filter plate 21, and the end of the connecting pipe 17 away from the discharge pipe 12 is connected with the second sewage inlet pipe 15. The sewage inlet pipe 15 is connected, and the bottom end of the sedimentation tank 13 is provided with a sludge collection tank 14, the sludge collection tank 14 is provided with a sludge pump 23 inside, and the bottom end of the sludge collection tank 14 is provided with a sewage discharge pipe 16, which discharges sewage. The pipe 16 is connected to the first sewage inlet pipe 4 through the sewage return pipe 18 .

In this embodiment, sludge is injected into the reaction box 1 through the first sewage inlet pipe 4, and sewage is injected through the water inlet pipe, and the motor 6 is turned on. The rotating shaft 8 rotates, and at the same time, the stirring impeller 11 at the bottom end of the first rotating shaft 7 and the stirring impeller 11 at the bottom end of the second rotating shaft 8 rotate, and the two reaction chambers are ventilated by the air pump, and the activated sludge and the activated sludge are ventilated by the stirring impeller 11. The sewage is stirred, thereby improving the mixing uniformity of activated sludge and sewage, and improving the efficiency of sewage treatment. The reacted sewage enters the sedimentation tank 13 through the connecting pipe 17, and the sewage enters the upper end of the sedimentation tank 13 through the filter plate 21. The sludge is discharged from the decanter 22, and the sludge is deposited into the sludge collection tank 14, and the sludge is transported to the reaction tank 1 again through the sludge pump 23 for recycling.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. Equivalent replacement or modification of the new technical solution and its utility model concept shall be included within the protection scope of the present utility model.

Claims (7)

1. The utility model provides an activated sludge process sewage treatment plant, includes reaction box (1) and deposits storehouse (13), its characterized in that, the inside of reaction box (1) is separated into first reaction chamber and second reaction chamber through baffle (2), and the vertical rotation in upper end one side of reaction box (1) installs first rotation axis (7), and the lower extreme of first rotation axis (7) extends to in the first reaction chamber, the top of first rotation axis (7) is fixed with first belt pulley (9), and the vertical rotation of upper end opposite side of reaction box (1) installs second rotation axis (8), the lower extreme of second rotation axis (8) extends to in the second reaction chamber, and the top of second rotation axis (8) is fixed with second belt pulley (10), logical groove (3) have been seted up on baffle (2), and run through on baffle (2) and be provided with trachea (19), a plurality of aeration heads (25) are mounted on the air pipe (19), a first sewage inlet pipe (4) and a water inlet pipe (24) are arranged on the outer wall of one side of the reaction box body (1), a discharge pipe (12) and a waste gas outlet (5) are fixed on the outer wall of the other side of the reaction box body (1), and the outer end of the discharge pipe (12) is connected with the precipitation bin (13) through a connecting pipe (17);

the sludge settling device is characterized in that a filter plate (21) is fixed at the upper end of the interior of the settling bin (13), a water outlet (20) is formed in one side of the settling bin (13), a sludge collecting box (14) is arranged at the bottom end of the settling bin (13), and a sludge pump (23) is arranged in the sludge collecting box (14).

2. The activated sludge process sewage treatment plant according to claim 1, wherein the top end of the first rotating shaft (7) is provided with a motor (6), the motor (6) is fixed on the top end of the reaction box body (1) through a mounting frame, and the output end of the motor (6) is concentrically and fixedly connected with the first rotating shaft (7).

3. The activated sludge process wastewater treatment device as claimed in claim 1, wherein the first pulley (9) and the second pulley (10) are connected by a V-belt.

4. The activated sludge process sewage treatment plant according to claim 1, wherein the bottom ends of the first rotating shaft (7) and the second rotating shaft (8) are both provided with stirring impellers (11).

5. The activated sludge process sewage treatment plant according to claim 1, wherein a second sewage inlet pipe (15) is welded on the settling bin (13), the second sewage inlet pipe (15) is positioned below the filter plate (21), and one end of the connecting pipe (17) far away from the discharge pipe (12) is connected with the second sewage inlet pipe (15).

6. The activated sludge process sewage treatment plant according to claim 1, wherein the water outlet (20) is positioned above the filter plate (21), a decanter (22) is fixed inside the settling bin (13), and the output end of the decanter (22) is connected with the water outlet (20).

7. The activated sludge process sewage treatment plant according to claim 1, wherein the bottom end of the sludge collection tank (14) is provided with a sewage discharge pipe (16), and the sewage discharge pipe (16) is connected with the first sewage inlet pipe (4) through a sewage return pipe (18).

Images