CN213060353U

CN213060353U - Vertical circulation small-size integrated sewage treatment plant

Info

Publication number: CN213060353U
Application number: CN202021537450.1U
Authority: CN
Inventors: 徐悦; 潘磊
Original assignee: Lianyungang Kaiwu Creative Environmental Protection Technology Co ltd
Current assignee: Lianyungang Kaiwu Creative Environmental Protection Technology Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-04-27
Anticipated expiration: 2030-07-30

Abstract

A vertical circulation small-sized integrated sewage treatment device comprises a tank body, wherein a lower reaction area and an upper reaction area are arranged in the tank body, the upper reaction area is provided with a gas collecting hood, the center of the gas collecting hood is provided with a water through hole, a biological incubator assembly is arranged in the tank body, an aeration hole of the biological incubator assembly extends to the lower part of the gas collecting hood, the top of the tank body is provided with a gas-liquid separator, the inlet end of the gas-liquid separator is provided with a gas stripping pipe extending to the gas collecting hood, and the outlet end of the gas-liquid separator is provided with. The utility model uses oxygen supply aeration as air stripping power; gas is intercepted by the gas-collecting hood to realize gas stripping; forming a large-scale reflux circulation up and down through gas stripping to form rotational flow stirring, shearing and mixing; the sludge subjected to mud-water separation in the settling zone flows back to the upper reaction zone under the self weight; the up-down circulation mode makes the gas, water and mud in the reaction zone fully stirred, sheared and mixed to form biochemical reaction with high mass transfer efficiency, thereby achieving the effect of high-quality treatment of sewage.

Description

Vertical circulation small-size integrated sewage treatment plant

Technical Field

The utility model relates to a sewage treatment technology, in particular to a vertical circulation small-size integrated sewage treatment device.

Background

At present, the most commonly used small-sized sewage treatment devices are reduced versions of large-sized sewage treatment processes, and biochemical treatment processes such as an anoxic-aerobic process or an anaerobic-anoxic-aerobic process are mostly adopted.

The sewage treatment facility of the existing anoxic-aerobic process comprises an anoxic zone, an aerobic zone and a sedimentation zone which are horizontally arranged; sewage enters from the anoxic zone, flows through the aerobic zone and the sedimentation zone in sequence under the action of the wastewater liquid level difference, and flows out after reaction treatment. The anaerobic zone is internally provided with a mechanical stirring device for uniformly stirring muddy water in the corresponding zone, and the aerobic zone is provided with an aeration device for supplying oxygen. In order to complete the denitrification function, muddy water in the aerobic zone must return to the anoxic zone, a mixed liquor backflow pipeline is arranged at the tail end of the aerobic zone, a mixed liquor backflow pump is arranged on the mixed liquor backflow pipeline, and mixed liquor in the aerobic zone flows back to the anoxic zone through the mixed liquor backflow pipeline under the action of the mixed liquor backflow pump. In order to complete the microorganism interception function, sludge in the sedimentation zone must flow back to the anoxic zone, a sludge return pipeline is arranged at the bottom of the sedimentation zone, a sludge return pump is arranged on the sludge return pipeline, and the sludge in the sedimentation zone flows back to the anoxic zone through the sludge return pipeline under the action of the sludge return pump.

The sewage treatment facility has the advantages of more power equipment, large occupied area, high energy consumption of the system, higher maintenance cost and difficult operation, maintenance and control.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough of prior art, provide a small-size integrated sewage treatment plant of vertical upper and lower circulation that area is little, power equipment is few, maintain easy, the operation is simple.

The utility model aims to solve the technical problem that the realization is realized through following technical scheme, the utility model relates to a vertical small-size integrated sewage treatment plant that circulates from top to bottom, its characteristics are, the device is including a jar body, jar body lower part is equipped with the water inlet, jar body upper portion is equipped with the delivery port, jar internal reaction zone and the last reaction zone of being equipped with down, it is equipped with the gas collecting channel to go up the reaction zone, the center of gas collecting channel is equipped with the water service mouth, jar internal biological incubator subassembly that is used for providing oxygen suppliment aeration and biological incubation energy that is equipped with, the aeration mouth of biological incubator subassembly extends the gas collecting channel below, jar body top is equipped with vapour and liquid separator, vapour and liquid separator's entrance point is equipped with the gas-lift pipe that extends gas collecting.

The technical problem to be solved in the utility model can be realized by the following technical scheme, the biological incubator component comprises a circulating pump and an aeration port extending to the upper reaction zone below the gas collecting hood and an aerobic bioreactor between the lower reaction zone, and the aerobic bioreactor is connected with the circulating pump.

The utility model discloses the technical problem that will solve can also be realized through following technical scheme the internal fixed of jar of gas collecting channel top has a bottom open-ended center section of thick bamboo, and the space that center section of thick bamboo, gas collecting channel and jar wall enclose has constituted the settling zone, is equipped with the water channel who communicates settling zone and last reaction zone between gas collecting channel and the center section of thick bamboo, the circulating pump dress is in a center section of thick bamboo.

The utility model discloses the technical problem that will solve can also be realized through following technical scheme, the water service port of gas collecting channel is just right with the bottom opening of a center section of thick bamboo, and the water service port is less than the bottom opening of a center section of thick bamboo.

The utility model discloses the technical problem that will solve can also be realized through following technical scheme, the top and the internal wall of jar of gas collecting channel are fixed to be met, and the bottom and the gas collecting channel top intercommunication of gas lift pipe, the top and the vapour and liquid separator intercommunication of gas lift pipe.

The utility model discloses the technical problem that will solve can also be realized through following technical scheme, the gas lift pipe be equipped with a plurality of roots, set up along jar body circumference.

The utility model discloses the technical problem that will solve can also be realized through following technical scheme, the back flow be equipped with 1-3, the bottom mouth of pipe of back flow is tangent line whirl arrangement along jar body circumference in reaction zone bottom down.

The utility model discloses the technical problem that will solve can also be realized through following technical scheme be equipped with the play water weir groove with the delivery port intercommunication on the internal wall of jar.

Compared with the prior art, the utility model utilizes the oxygen supply aeration provided by the biological incubator component as the air stripping power, the gas is intercepted by the gas collecting hood, the air stripping pipe is reused to realize the air stripping, the air stripping forms the upper and lower large proportion reflux circulation, thereby the circulation forms the rotational flow stirring shearing mixing, the upper and lower circulation modes lead the gas, the water and the mud in the reaction zone to be fully stirred, sheared and mixed, the biochemical reaction with high mass transfer efficiency is formed, and the high-quality treatment effect on the sewage is achieved; the utility model folds each reaction area and the separation function area together in space, which occupies small area; the mode of up-down circulation stirring and sludge self-weight backflow omits a mechanical stirring device, a mixed liquid backflow pump and a sludge backflow pump in the prior art, reduces power equipment, is easy to maintain, and is simple to operate.

Drawings

FIG. 1 is a structural diagram of the vertical circulation small-sized integrated sewage treatment device.

Detailed Description

The embodiments of the present invention will be further described with reference to the accompanying drawings, so as to enable those skilled in the art to further understand the present invention, without constituting a limitation to the right of the present invention.

Referring to fig. 1, a vertical circulation small-sized integrated sewage treatment device comprises a tank body 1, wherein a water inlet 6 is arranged at the lower part of the tank body 1, the water inlet 6 is simultaneously used as a sludge discharge port, a water outlet 5 is arranged at the upper part of the tank body 1, a water outlet weir notch 13 communicated with the water outlet 5 is arranged on the inner wall of the tank body 1, a lower reaction zone 2 and an upper reaction zone 3 are arranged in the tank body 1, the upper reaction zone 3 is provided with a gas collecting hood 7, a water through hole is arranged at the center of the gas collecting hood 7, a central cylinder 12 with an opening at the bottom is fixed in the tank body 1 above the gas collecting hood 7, the water through hole of the gas collecting hood 7 is opposite to the opening at the bottom of the central cylinder 12, the water through hole is smaller than the opening at the bottom of the central cylinder, a space formed by the central cylinder 12, the gas collecting hood 7; a biological incubator assembly 11 for providing oxygen supply aeration and biological incubation energy is arranged in the tank body 1, an aeration port 14 of the biological incubator assembly 11 extends to the lower part of the gas collecting hood 7, a gas-liquid separator 9 is arranged at the top of the tank body 1, a gas stripping pipe 8 extending to the gas collecting hood 7 is arranged at the inlet end of the gas-liquid separator 9, and a return pipe 10 extending to the bottom of the lower reaction zone 2 is arranged at the outlet end of the gas-liquid separator 9; the top of the gas collecting hood 7 is fixedly connected with the inner wall of the tank body 1, the bottom end of the gas stripping pipe 8 is communicated with the top of the gas collecting hood 7, the top end of the gas stripping pipe 8 is communicated with the gas-liquid separator 9, the gas stripping pipe 8 is provided with a plurality of gas stripping pipes which are arranged along the circumferential direction of the tank body and can be symmetrically or asymmetrically arranged, if even number of gas stripping pipes are arranged, the gas stripping pipes can be symmetrically arranged, and if single number of gas stripping pipes are arranged, the gas stripping pipes can be uniformly arranged along; the number of the backflow pipes 10 is 1-3, and the pipe orifices at the bottom ends of the backflow pipes are arranged at the bottom of the lower reaction zone in a tangential swirling flow mode along the circumferential direction of the tank body.

The biological incubator component comprises a circulating pump 15 and an aerobic bioreactor, wherein an aeration port 14 extends to the position between an upper reaction zone and a lower reaction zone below a gas-collecting hood, the aerobic bioreactor is connected with the circulating pump 15, the circulating pump 15 is arranged in the central cylinder 12, and the power of the biological incubator component is provided by the circulating pump 15; the aerobic bioreactor can adopt a high-efficiency aerobic bioreactor with the application number of 201820147430.X, and can also adopt any aerobic bioreactor which is disclosed by the prior art and realizes oxygen supply aeration and biological incubation energy.

The gas-collecting hood 7 is arranged in a horn shape with a large upper part and a small lower part, and the top of the gas-collecting hood is fixedly connected with the inner wall of the tank body; the central cylinder 12 is composed of a straight cylinder with an opening at the bottom and a conical cylinder with a small upper part and a large lower part, and the small opening of the conical cylinder is fixedly connected with the opening at the bottom of the straight cylinder.

When the device works, sewage enters the lower reaction zone 2 from the water inlet 6 at the lower part of the tank body 1, liquid at the bottom of the tank body spirally rises under the action of the return pipe arranged in a tangential rotational flow mode in the lower reaction zone 2, enters the upper reaction zone 3, passes through the central cylinder 12 to the settling zone 4 from the channel in the middle of the gas collecting hood 7, flows into the water outlet weir groove 13, and is discharged from the water outlet 5.

The specific implementation of the up-and-down circulation mode is as follows: at the bottom of the upper reaction zone 3, the biological incubator assembly 11 provides oxygen supply and aeration, gas rises and is collected by the gas collecting hood 7, mud-water mixed liquid is driven to reach the gas-liquid separator 9 through the gas stripping pipe 8, and the separated mud-water mixed liquid flows back to the bottom of the lower reaction zone 2 from the return pipe 10 communicated with the lower part of the gas-liquid separator 9; in the lower reaction zone 2, the mixed solution is mixed with the inlet water by rotational flow, and then rises to the upper reaction zone 3 by hydraulic stirring and spiral, so as to realize the up-and-down circulation reaction.

The vertical circulation small-sized integrated sewage treatment device of the utility model utilizes the oxygen supply aeration provided by the biological incubator component 11 as the air stripping power; gas is intercepted through the gas collecting hood, and gas stripping is realized through the gas stripping pipe and the gas-liquid separator 9; forming a large-scale reflux circulation up and down through gas stripping; the rotational flow stirring shearing mixing is formed through the large-proportion backflow circulation. The sludge subjected to mud-water separation in the settling zone flows back to the upper reaction zone under the self weight; the up-down circulation mode makes the gas, water and mud in the reaction zone fully stirred, sheared and mixed to form biochemical reaction with high mass transfer efficiency, thereby achieving the effect of high-quality treatment of sewage. The reaction and separation functional zones are folded together in space, so that the occupied area is reduced; the mode of up-down circulation stirring and sludge self-weight backflow omits a mechanical stirring device, a mixed liquid backflow pump and a sludge backflow pump in the prior art, thereby reducing power equipment, ensuring easy system maintenance and simple operation.

The above embodiments are only used to clearly illustrate the technical solutions of the present invention, and the protection scope of the present invention includes but is not limited to the above embodiments, and any suitable changes or substitutions made by those skilled in the art according to the claims of the present invention and any shown technical fields should fall within the patent protection scope of the present invention.

Claims

1. The utility model provides a vertical small-size integrated sewage treatment plant that circulates from top to bottom which characterized in that: the device comprises a tank body, a water inlet is arranged at the lower part of the tank body, a water outlet is arranged at the upper part of the tank body, a lower reaction zone and an upper reaction zone are arranged in the tank body, a gas-collecting hood is arranged in the upper reaction zone, a water through hole is arranged at the center of the gas-collecting hood, a biological incubator assembly for providing oxygen supply aeration and biological incubation energy is arranged in the tank body, an aeration hole of the biological incubator assembly extends to the lower part of the gas-collecting hood, a gas-liquid separator is arranged at the top of the tank body, a gas stripping pipe extending to the gas-collecting hood is arranged at the inlet end.

2. The vertical circulation small-sized integrated sewage treatment plant according to claim 1, characterized in that: the biological incubator component comprises a circulating pump and an aerobic bioreactor, the aerobic bioreactor is connected with the circulating pump, and an aeration port of the aerobic bioreactor extends between an upper reaction zone and a lower reaction zone below the gas-collecting hood.

3. The vertical circulation small-sized integrated sewage treatment plant according to claim 2, characterized in that: a central cylinder with an opening at the bottom is fixed in the tank body above the gas-collecting hood, a settling zone is formed by a space surrounded by the central cylinder, the gas-collecting hood and the tank wall, a water passing channel communicated with the settling zone and the upper reaction zone is arranged between the gas-collecting hood and the central cylinder, and the circulating pump is arranged in the central cylinder.

4. The vertical circulation small-sized integrated sewage treatment plant according to claim 3, characterized in that: the water through opening of the gas collecting hood is opposite to the bottom opening of the central cylinder, and the water through opening is smaller than the bottom opening of the central cylinder.

5. The vertical circulation small-sized integrated sewage treatment plant according to claim 1, characterized in that: the top of the gas collecting hood is fixedly connected with the inner wall of the tank body, the bottom end of the gas stripping pipe is communicated with the top of the gas collecting hood, and the top end of the gas stripping pipe is communicated with the gas-liquid separator.

6. The vertical circulation small-sized integrated sewage treatment plant according to claim 1, characterized in that: the gas stripping pipe is provided with a plurality of pipes which are arranged along the circumferential direction of the tank body.

7. The vertical circulation small-sized integrated sewage treatment plant according to claim 1, characterized in that: the number of the backflow pipes is 1-3, and the pipe orifices at the bottom end of the backflow pipes are arranged at the bottom of the lower reaction zone in a tangential swirling flow mode along the circumferential direction of the tank body.

8. The vertical circulation small-sized integrated sewage treatment plant according to claim 1, characterized in that: and a water outlet weir groove communicated with the water outlet is arranged on the inner wall of the tank body.