CN209778349U

CN209778349U - Air stripping adds medicine reflux unit

Info

Publication number: CN209778349U
Application number: CN201920475921.1U
Authority: CN
Inventors: 潘胜; 芦艳平; 余正学; 商文秀; 呼永锋
Original assignee: Beijing Xincheng Yulu Environmental Protection Technology Co Ltd
Current assignee: Beijing Xincheng Yulu Environmental Protection Technology Co Ltd
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2019-12-13
Anticipated expiration: 2029-04-09

Abstract

The utility model provides an air stripping adds medicine reflux unit, include: the gas stripping device comprises a gas stripping pipe, an air inlet pipe communicated with a pipe cavity of the gas stripping pipe, a medicine feeding pipe and a mixing box, wherein the mixing box is communicated with the gas stripping pipe; the air inlet pipe and the dosing pipe are communicated with the mixing box. The utility model discloses an air stripping adds medicine reflux unit through the technology operation of device, reaches the requirement of mud backward flow or nitrify liquid backward flow, has practiced thrift the energy consumption greatly. The reflux of the air stripping device replaces the reflux of the pump, the purpose of the reflux of the mixed liquid can be achieved only by providing a small part of air quantity by the fan, the electric energy is greatly saved, and in the air stripping process, the reagent is added to fully mix with the extracted sewage, so that better biochemical reaction is facilitated.

Description

Air stripping adds medicine reflux unit

Technical Field

The utility model belongs to the sewage treatment field especially relates to an air stripping adds medicine reflux unit.

background

A great deal of nitrogen and phosphorus removal treatment process for urban sewage plants adopts²the/O process or the A/O process. Generally, for sludge return and digester effluent return, the following problems exist: the mixed liquid reflux mode is not good in engineering treatment, and the power consumption is high due to the reflux of the mixed liquid by a pump. In order to ensure a certain denitrification and dephosphorization efficiency, the reflux ratio of the mixed liquor is often very large, which is equivalent to the reflux of the mixed liquor with the water inlet amount being 1-4 times, and if the scale of the sewage plant is large, the power consumption is very large when the mixed liquor is refluxed by using a pump.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an air lift that the energy consumption is low, the air lift is effectual to the not enough of prior art is provided to and can add the medicine reflux unit at the air lift of medicine simultaneously.

The utility model discloses the technical problem that solve is realized through following technical scheme:

an air-stripping dosing reflux device, comprising: the gas stripping device comprises a gas stripping pipe, an air inlet pipe communicated with a pipe cavity of the gas stripping pipe, a medicine feeding pipe and a mixing box, wherein the mixing box is communicated with the gas stripping pipe; the air inlet pipe and the dosing pipe are communicated with the mixing box.

Preferably, a switchable cleaning port is provided on the mixing box.

Preferably, the other end of the air inlet pipe and the other end of the dosing pipe are respectively provided with a control valve.

Preferably, the air inlet pipe and the dosing pipe are made of PVC materials.

Preferably, the mixing box with the material of gas stripping pipe is the PVC material.

The utility model discloses an air stripping adds medicine reflux unit through the technology operation of device, reaches the requirement of mud backward flow or nitrify liquid backward flow, has practiced thrift the energy consumption greatly. The reflux of the air stripping device replaces the reflux of the pump, the purpose of the reflux of the mixed liquid can be achieved only by providing a small part of air quantity by the fan, the electric energy is greatly saved, and in the air stripping process, the reagent is added to fully mix with the extracted sewage, so that better biochemical reaction is facilitated.

The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic structural view of an air stripping chemical reflux device according to an embodiment of the present invention;

Fig. 2 is a schematic structural view of a secondary gas stripping and chemical adding reflux device in the embodiment of the utility model.

Detailed Description

Example one

fig. 1 is a schematic structural view of an air-lift medicine reflux device according to an embodiment of the present invention. As shown in fig. 1, the present embodiment provides an air stripping chemical adding reflux apparatus, including: the gas stripping pipe 11, intake pipe 12, add pencil 13 and mixing box 14, the intake pipe 12 with add pencil 13, with set up and be in mixing box 14 in the gas stripping pipe 11 is linked together. In order to better control the air inflow and the medicine feeding amount, a control valve 15 is respectively arranged at the other end of the air inlet pipe 12 and the other end of the medicine feeding pipe 13. Preferably, an openable and closable cleaning port 141 is provided in the mixing box 14, so that the mixing box 14 can be periodically cleaned. The mixing box 14, the air stripping pipe 12, the air inlet pipe 12 and the dosing pipe 13 are all made of PVC materials.

The working principle is as follows:

An aeration fan connected with the other end of the air inlet pipe 12 supplies air into the mixing box 14 to generate pressure difference, so that sewage is extracted into the mixing box 14; when the sewage is extracted, the chemical feeding pipe 13 starts to feed the chemical into the mixing box 14, the chemical is broken up under the action of wind power, and then the chemical is fully mixed with the extracted sewage and is discharged through the water outlet 121 of the air stripping pipe 12.

Example two

Fig. 2 is a schematic structural view of a secondary gas stripping and chemical adding reflux device in the embodiment of the utility model. As shown in fig. 2, the structure of the air stripping chemical-adding reflux device in the present embodiment is substantially the same as that of the air stripping chemical-adding reflux device in the first embodiment, except that in the present embodiment, the mixing box 24 is disposed outside the gas stripping pipe 21, and the connecting portion of the mixing box 24 and the gas stripping pipe 21 is provided with a plurality of through holes 211; the air inlet pipe 22 and the dosing pipe 23 are communicated with a mixing box 24.

The working principle is as follows:

an aeration fan connected to the other end of the air inlet pipe 22 supplies air into the mixing box 24 and delivers the air into the stripping pipe 21 through the through hole 211 to generate a pressure difference, thereby extracting the sewage into the stripping pipe 21; simultaneously with the extraction of the sewage, the chemical feeding pipe 23 starts to feed the chemical into the mixing box 24, the chemical is broken up under the action of wind power, and then the chemical is fully mixed with the extracted sewage through the through hole 211 and is discharged through the water outlet 221 of the air stripping pipe 22.

Claims

1. An air-stripping dosing reflux device, comprising: the gas stripping device comprises a gas stripping pipe and an air inlet pipe communicated with a pipe cavity of the gas stripping pipe, and is characterized by further comprising a medicine feeding pipe and a mixing box, wherein the mixing box is communicated with the gas stripping pipe; the air inlet pipe and the dosing pipe are communicated with the mixing box.

2. The air-stripping drug-adding reflux device as claimed in claim 1, wherein a switchable purge port is provided on the mixing tank.

3. The air-stripping dosing reflux device as claimed in claim 1, wherein a control valve is respectively arranged at the other end of the air inlet pipe and the dosing pipe.

4. The gas stripping medicine-adding reflux device as claimed in claim 1, wherein the air inlet pipe and the medicine-adding pipe are made of PVC material.

5. The air-stripping chemical-adding reflux device as claimed in claim 1, wherein the mixing tank and the air stripping pipe are made of PVC.