CN211367333U

CN211367333U - Activated sludge process sewage treatment plant

Info

Publication number: CN211367333U
Application number: CN201922164421.9U
Authority: CN
Inventors: 王允妹; 单连斌; 赵勇娇; 张磊; 魏春飞
Original assignee: Shenyang Academy Environmental Sciences
Current assignee: Shenyang Academy Environmental Sciences
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-08-28
Anticipated expiration: 2029-12-06

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

Activated sludge process sewage treatment plant

Technical Field

The utility model relates to a sewage treatment technical field especially relates to an activated sludge process sewage treatment plant.

Background

The activated sludge process is the most common sewage aerobic treatment technology. Consists of an aeration tank (reaction tank), a sedimentation tank, a return sludge and a residual sludge removal system. The core unit is an aeration tank, air is filled in through aeration equipment, and oxygen in the air is dissolved into sewage to enable activated sludge mixed liquor to generate aerobic metabolic reaction. The mixed liquor flows into a sedimentation tank, wherein suspended solids are separated from water in the sedimentation tank to form sludge, and most of the sludge flows back to the aeration tank. However, the existing circulating activated sludge sewage treatment device mostly adopts one reaction chamber, so that the mixing rate of sewage and sludge in the reaction chamber is low, and the sewage treatment effect is low, and therefore, an activated sludge sewage treatment device is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of low mixing rate of the sewage and the sludge in the reaction chamber and low sewage treatment effect in the prior art and providing the activated sludge process sewage treatment device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an activated sludge process sewage treatment device comprises a reaction box body and a precipitation bin, wherein the interior of the reaction box body is divided into a first reaction chamber and a second reaction chamber by 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 at 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 at the top end of the second rotating shaft, a through groove is formed in the partition plate, an air pipe penetrates through the partition plate, a plurality of aeration heads are arranged on the air pipe, a first sewage inlet pipe and a water inlet pipe are arranged on the outer wall of one side of the reaction box body, and a discharge pipe and a waste gas outlet, the outer end of the discharge pipe is connected with the precipitation bin through a connecting pipe;

the filter plate is fixed at the upper end of the interior of the sedimentation bin, a water outlet is formed in one side of the sedimentation bin, a sludge collection box is arranged at the bottom end of the sedimentation bin, and a sludge pump is arranged in the sludge collection box.

Preferably, the top of first rotation axis is provided with the motor, the motor passes through the mounting bracket to be fixed on the top of reaction box, and the output and the concentric fixed connection of first rotation axis of motor.

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

Preferably, the bottom ends of the first rotating shaft and the second rotating shaft are both provided with stirring impellers.

Preferably, the welding has the second to advance dirty pipe on the storehouse of deposiing, the second advances dirty pipe to be located the below of filter plate, the connecting pipe is kept away from the one end of discharging pipe with the second advances dirty union coupling.

Preferably, the water outlet is positioned above the filter plate, a decanter is fixed inside the settling bin, and the output end of the decanter is connected with the water outlet.

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

The utility model has the advantages that:

1. through being provided with two reaction chambers in the reaction box, and drive the stirring impeller by the motor simultaneously and stir in two reaction chambers to activated sludge and sewage mixed's degree of consistency has been improved, sewage treatment efficiency has been improved.

2. The filter plate is used for blocking the sludge in the sedimentation bin, so that the sludge is separated from the sewage, the sewage treatment effect is further improved, and the activated sludge can be recycled conveniently.

Drawings

FIG. 1 is a schematic structural view of an activated sludge process sewage treatment plant according to the present invention;

fig. 2 is a schematic structural diagram of a settling bin in the activated sludge process sewage treatment device provided by the utility model.

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

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, an activated sludge process sewage treatment device comprises a reaction box body 1 and a precipitation bin 13, the interior of the reaction box body 1 is divided into a first reaction chamber and a second reaction chamber by a partition plate 2, a first rotating shaft 7 is vertically and rotatably installed on one side of the upper end of the reaction box body 1, a motor 6 is arranged on the top end of the first rotating shaft 7, the motor 6 is fixed on the top end of the reaction box body 1 by a mounting frame, the output end of the motor 6 is 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, a first belt pulley 9 is fixed on the top end of the first rotating shaft 7, a second rotating shaft 8 is vertically and rotatably installed on the other side of the upper end of the reaction box body 1, the second rotating shaft 8 and the first rotating shaft 7 are rotatably installed on the reaction box body 1 by a bearing, and, a second belt pulley 10 is fixed at the top end of the second rotating shaft 8, the second belt pulley 10 is connected with the first belt pulley 9 through a V-belt, stirring impellers 11 are installed at the bottom ends of the first rotating shaft 7 and the second rotating shaft 8, through grooves 3 are formed in the partition plate 2, sewage can flow in the two reaction chambers conveniently, an air pipe 19 penetrates through the partition plate 2, two ends of the air pipe 19 are located in the two reaction chambers respectively, eight aeration heads 25 are installed on the air pipe 19, the air pipe 19 is connected with an external air pump through a pipeline, a first sewage inlet pipe 4 and a water inlet pipe 24 are welded on the outer wall of one side of the reaction box body 1, the water inlet pipe 24 is located at the upper end of the reaction box body 1, a discharge pipe 12 and a waste gas outlet 5 are welded and fixed on the outer wall of the other side of the reaction box body 1, and;

a filter plate 21 is fixed at the upper end of the interior of the precipitation bin 13, a water outlet 20 is arranged on one side of the precipitation bin 13, the water outlet 20 is located above the filter plate 21, a decanter 22 is fixed inside the precipitation bin 13, the output end of the decanter 22 is connected with the water outlet 20, a second sewage inlet pipe 15 is welded on the precipitation bin 13, the second sewage inlet pipe 15 is located below the filter plate 21, one end, far away from the discharge pipe 12, of the connecting pipe 17 is connected with the second sewage inlet pipe 15, a sludge collecting box 14 is arranged at the bottom end of the precipitation bin 13, a sludge pump 23 is arranged inside the sludge collecting box 14, a sewage discharge pipe 16 is arranged at the bottom end of the sludge collecting box 14, and the sewage discharge pipe 16 is connected with the first sewage inlet pipe 4 through a sewage.

In the embodiment, the first sewage inlet pipe 4 is used for injecting sludge into the reaction box body 1, sewage is injected through the water inlet pipe, the motor 6 is started, the motor 6 drives the first rotating shaft 7 to rotate, simultaneously drives the second rotating shaft 8 to rotate through the V-belt, simultaneously enables 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 to rotate, the two reaction chambers are ventilated by an air pump, the activated sludge and the sewage are stirred by a stirring impeller 11, thereby improving the mixing uniformity of the activated sludge and the sewage and improving the sewage treatment efficiency, the sewage after reaction enters the sedimentation bin 13 through the connecting pipe 17, and the sewage enters the upper end of the sedimentation bin 13 through the filter plate 21 and is discharged by the decanter 22, the sludge is precipitated into the sludge collection box 14, and the sludge is conveyed into the reaction box body 1 again through a sludge pump 23 for recycling.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

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).