CN211620056U

CN211620056U - Efficient sewage treatment aeration tank of gas-liquid mixture

Info

Publication number: CN211620056U
Application number: CN201922484454.1U
Authority: CN
Inventors: 于飞; 宋和明; 杨伟; 王海娟; 王财
Original assignee: Nanjing Leyi Environmental Technology Co ltd
Current assignee: Nanjing Leyi Environmental Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-10-02
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a sewage treatment aeration tank with high gas-liquid mixing efficiency, which comprises a tank body and an aeration device, wherein the aeration device is arranged in the tank body, the top of the tank body is provided with a cover plate, the aeration tank also comprises four motors, screw rods and lifting plates, the four motors are uniformly distributed on two sides of the top of the tank body, the motors are fixed on the cover plate, one end of each screw rod passes through the cover plate and is fixedly connected with a motor output shaft, and the other end of each screw rod is rotatably connected to the bottom of the tank body; the lifting plate is in a grid shape and is in threaded connection with the four screw rods, and a plurality of through holes are uniformly formed in the lifting plate; the aeration device comprises an aerator, wherein the aerator is arranged at the bottom of the tank body and is positioned right below the grid holes of the lifting plate. The aeration tank of the utility model also has high mixing efficiency with air.

Description

Efficient sewage treatment aeration tank of gas-liquid mixture

Technical Field

The utility model relates to a sewage treatment aeration tank that gas-liquid mixing is efficient belongs to sewage treatment technical field.

Background

Aeration means that air is artificially introduced into the biochemical aeration tank through proper equipment to make liquid in the tank contact with the air so as to fulfill the aim of oxygenation; the aeration tank is a device for aerating sewage, and provides certain sewage retention time in the tank to meet the oxygen quantity required by aerobic microorganisms and the mixing condition of full contact of sewage and activated sludge. In addition, the aeration tank also has the purposes of preventing the suspension in the tank from sinking and enhancing the contact between organic matters in the tank and microorganisms and dissolved oxygen, thereby ensuring the oxidative decomposition of the microorganisms in the tank on the organic matters in the sewage under the condition of sufficient dissolved oxygen. The stirring device of the existing aeration tank is mostly an auger type stirring shaft, and the liquid and air mixing efficiency is not high during stirring.

SUMMERY OF THE UTILITY MODEL

The utility model provides an aeration tank which can evenly mix liquid and air, aiming at solving the problems existing in the prior art.

In order to achieve the above object, the utility model provides a technical scheme does: a sewage treatment aeration tank with high gas-liquid mixing efficiency comprises a tank body and aeration devices, wherein the aeration devices are arranged in the tank body, a cover plate is arranged at the top of the tank body, the aeration tank further comprises four motors, screw rods and lifting plates, the four motors are uniformly distributed on two sides of the top of the tank body, the motors are fixed on the cover plate, one end of each screw rod penetrates through the cover plate and is fixedly connected with an output shaft of the motor, and the other end of each screw rod is rotatably connected to the bottom of the tank body; the lifting plate is in a grid shape and is in threaded connection with the four screw rods, and a plurality of through holes are uniformly formed in the lifting plate; the aeration device comprises an aerator, wherein the aerator is arranged at the bottom of the tank body and is positioned right below the grid holes of the lifting plate.

The technical scheme is further designed as follows: the aeration device comprises an air compressor, a main air supply pipe and a branch air supply pipe, the air compressor is fixed at the top of the tank body, the branch air supply pipe is fixed at the bottom of the tank body, one end of the main air supply pipe is communicated with the branch air supply pipe, and the other end of the main air supply pipe penetrates through the cover plate and is connected with the air compressor; the aerators are evenly arranged on the air supply branch pipe.

The air supply branch pipes are distributed in a grid shape, and the plurality of aerators are distributed on the air supply branch pipes in a dot matrix shape.

The cover plate is divided into a fixed cover plate and a movable cover plate, the two fixed cover plates are fixed at the tops of two sides of the pool body, and the movable cover plate is positioned between the two fixed cover plates and is in sliding connection with the two fixed cover plates.

The motor is fixed on the fixed cover plate, and the top of the screw rod is rotationally connected with the fixed cover plate through a bearing; the main gas supply pipe penetrates through the fixed cover plate and is connected with the fixed cover plate in a sealing mode.

The utility model has the advantages that:

in the utility model, the motor and the lead screw drive the lifting plate to rapidly reciprocate to achieve the purpose of stirring; because the aerator is positioned right below the grid holes of the lifting plate, the amount of liquid air at the grid holes of the lifting plate is large, when the lifting plate rises, the liquid rich in air at the grid flows to the bottom of the lifting plate, and meanwhile, the liquid with less air above the plate body of the lifting plate flows to the bottom of the lifting plate from the through holes and is mixed with the liquid rich in air, so that the mixing efficiency is improved.

The utility model discloses in flow out from a plurality of through-holes because the less liquid that contains the air, can form the stranded rivers, increase the velocity of flow and the surface area of liquid, can further improve the mixing efficiency of liquid and air.

Drawings

Fig. 1 is a longitudinal sectional view of an embodiment of the present invention;

FIG. 2 is a schematic view of the gas supply manifold of FIG. 1;

FIG. 3 is a schematic diagram of the structure of the elevator shown in FIG. 1;

fig. 4 is a transverse cross-sectional view of an embodiment of the invention;

FIG. 5 is an enlarged view taken at A in FIG. 4;

FIG. 6 is a schematic diagram of the cover plate structure shown in FIG. 1;

fig. 7 is a schematic view of the joint of the cover plate in fig. 6.

In the figure: 1-a pool body, 2-a cover plate, 21-a fixed cover plate, 22-a movable cover plate, 3-an air compressor, 4-an air supply main pipe, 5-an air supply branch pipe, 6-an aerator, 7-a motor, 8-a screw rod, 9-a lifting plate and 91-a through hole.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

As shown in fig. 1, the sewage treatment aeration tank with high gas-liquid mixing efficiency of the present embodiment includes a tank body 1, a cover plate 2 is disposed on the top of the tank body 1, and as shown in fig. 6 and 7, the cover plate 2 is divided into a fixed cover plate 21 and a movable cover plate 22, the two fixed cover plates 21 are fixed on the top of two sides of the tank body 1, the movable cover plate 22 is located between the two fixed cover plates 21 and is slidably connected with the two fixed cover plates 21, and the movable cover plate can be supported on the two fixed cover plates.

Be equipped with aeration equipment in this embodiment cell body, aeration equipment includes that air compressor machine 3, air feed are responsible for 4, air feed branch pipe 5 and aerator 6, air compressor machine 3 is fixed at a fixed apron 21 top, air feed branch pipe 5 is fixed in 1 bottom of cell body, 4 one ends and the intercommunication of air feed branch pipe are responsible for in the air feed, and the other end passes fixed apron 21 and is connected with air compressor machine 3, the air feed is responsible for 4 and fixed apron 21 sealing connection.

A plurality of aerators 6 are uniformly arranged on the air supply branch pipe 5; referring to fig. 2, the gas supply branch pipes 5 are in a grid-like distribution, and the plurality of aerators 6 are in a lattice distribution on the gas supply branch pipes. This embodiment leads to the air in to the cell body through air compressor machine 3.

The aeration tank in the embodiment further comprises a motor 7, a screw rod 8 and a lifting plate 9, the motor 7 is provided with four motors which are evenly distributed on two sides of the top of the tank body 1, the motor 7 is fixed on a fixed cover plate 21, one end of the screw rod 8 penetrates through the fixed cover plate and then is fixedly connected with an output shaft of the motor 7, the screw rod 8 is rotatably connected with the fixed cover plate 21 through a bearing, and the other end of the screw rod 8 is rotatably connected to the bottom of the tank body 1 through a bearing.

Referring to fig. 3, the lifting plate 9 is in a grid shape and is in threaded connection with four screw rods 8, and the motor 7 drives the screw rods 8 to rotate, so that the lifting plate 9 is driven to ascend or descend, and the liquid is stirred. As shown in fig. 4, the aerator 6 is disposed right below the mesh holes of the lifting plate 9.

Referring to fig. 5, a plurality of through holes 91 are uniformly formed in the lifting plate 9.

In this embodiment, fixed apron is used for fixed motor 7 and air compressor machine 3, and movable cover opens the back and is used for observing the liquid mixing condition, or maintains or changes etc. to the inside device of cell body.

In the aeration tank of the embodiment, air is pressed into the aeration tank through the air compressor 3 sequentially through the main air supply pipe 4, the branch air supply pipe 5 and the aerator 6, and the lifting plate 9 is driven by the motor 7 and the screw rod 8 to reciprocate up and down, so that liquid is stirred; in the stirring process, the liquid of lifter plate 9 net hole department contains the air more, the liquid of lifter plate 9 plate body top contains the air less, rise along with lifter plate 9, the liquid of lifter plate net hole department flows to lifter plate body bottom, the part liquid of lifter plate body top flows to lifter plate body bottom from through-hole 91, and mix with the liquid that contains the air more in lifter plate body bottom, thereby improve mixing efficiency, when lifter plate 9 descends, also the body mixes the principle the same, no longer give consideration to.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an efficient sewage treatment aeration tank of gas-liquid mixture, includes cell body and aeration equipment, aeration equipment sets up in the cell body, and the cell body top is equipped with apron, its characterized in that: the device comprises a cover plate, four motors, screw rods and lifting plates, wherein the four motors are uniformly distributed on two sides of the top of the tank body; the lifting plate is in a grid shape and is in threaded connection with the four screw rods, and a plurality of through holes are uniformly formed in the lifting plate; the aeration device comprises an aerator, wherein the aerator is arranged at the bottom of the tank body and is positioned right below the grid holes of the lifting plate.

2. The sewage treatment aeration tank with high gas-liquid mixing efficiency according to claim 1, which is characterized in that: the aeration device comprises an air compressor, a main air supply pipe and a branch air supply pipe, the air compressor is fixed at the top of the tank body, the branch air supply pipe is fixed at the bottom of the tank body, one end of the main air supply pipe is communicated with the branch air supply pipe, and the other end of the main air supply pipe penetrates through the cover plate and is connected with the air compressor; the aerators are evenly arranged on the air supply branch pipe.

3. The sewage treatment aeration tank with high gas-liquid mixing efficiency according to claim 2, which is characterized in that: the air supply branch pipes are distributed in a grid shape, and the plurality of aerators are distributed on the air supply branch pipes in a dot matrix shape.

4. The sewage treatment aeration tank with high gas-liquid mixing efficiency according to claim 2, which is characterized in that: the cover plate is divided into a fixed cover plate and a movable cover plate, the two fixed cover plates are fixed at the tops of two sides of the pool body, and the movable cover plate is positioned between the two fixed cover plates and is in sliding connection with the two fixed cover plates.

5. The sewage treatment aeration tank with high gas-liquid mixing efficiency according to claim 4, which is characterized in that: the motor is fixed on the fixed cover plate, and the top of the screw rod is rotationally connected with the fixed cover plate through a bearing; the main gas supply pipe penetrates through the fixed cover plate and is connected with the fixed cover plate in a sealing mode.