CN213924398U

CN213924398U - Magnetic coagulation dosing mixing pipeline

Info

Publication number: CN213924398U
Application number: CN202022485914.5U
Authority: CN
Inventors: 周安; 龚仁达
Original assignee: Jiangsu Pulisu Environmental Protection Technology Co ltd
Current assignee: Jiangsu Pulisu Environmental Protection Technology Co ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-08-10
Anticipated expiration: 2030-11-02

Abstract

A magnetic coagulation dosing mixing pipeline is specifically used for coagulation sedimentation treatment of sewage and comprises a mixing pipeline, a flocculation pipeline and a water outlet pipe, wherein the mixing pipeline consists of a contraction pipe, a throat pipe and a diffusion pipe along the water flow direction, the contraction pipe is gradually contracted and narrowed at the tail end and is connected with an inlet of the throat pipe, an inlet end of the diffusion pipe is connected with an outlet end of the throat pipe from narrow to wide, a PAC dosing device is connected into the contraction pipe through a pipeline, and a magnetic powder dosing device is connected into the diffusion pipe through a pipeline; the flocculation pipeline comprises expansion section and reciprocal baffle section along the rivers direction, and the expansion section of flocculation pipeline is connected to the diffusion tube of hybrid piping, and PAC throws the device and inserts the expansion section through the pipeline, and reciprocal baffle section is the rectangle pipeline, and the inside interval of rectangle pipeline has evenly laid the vertically baffle, and reciprocal baffle section exit has connect an outlet pipe. The device has the characteristics of simple structure and good treatment effect.

Description

Magnetic coagulation dosing mixing pipeline

Technical Field

The utility model relates to a sewage treatment field specifically is used for the coagulating sedimentation of sewage to handle.

Background

The magnetic coagulating sedimentation technology is that magnetic powder is added simultaneously in the common coagulating sedimentation process to combine with flocculating particles for sedimentation. The magnetic coagulation process has good adsorption effect on micro particles such as bacteria, viruses and the like, and is widely applied to the field of sewage treatment. Because the hydraulic retention time of the magnetic coagulation reaction is short, how to further simplify the coagulation precipitation unit and achieve good coagulation effect is the key point of the research of a plurality of water treatment enterprises

The prior patent (application number: CN 201610264811.1) discloses a magnetic coagulation water treatment device and a treatment process. The device comprises a mixing tank, a reaction tank and a sedimentation tank, wherein the reaction tank comprises a first reaction tank, a second reaction tank, a third reaction tank and a fourth reaction tank; the mixing tank is connected with the first reaction tank, the first reaction tank is connected with the second reaction tank through a mode that the bottom of the first reaction tank is overflowed, the second reaction tank is connected with the third reaction tank through a mode of a water weir, the third reaction tank is connected with the fourth reaction tank through a mode that the top of the third reaction tank is overflowed, the fourth reaction tank is connected with the sedimentation tank through a mode of a water weir, and under the action of an external magnetic field, magnetic alum blossom is rapidly settled to realize solid-liquid separation. The invention improves the sedimentation speed and saves the occupied space by the arrangement of the second reaction tank and the mode of water inlet in an up-and-down alternative way. The reaction treatment by adopting a plurality of reaction tanks has good effect, but the occupied area and the equipment investment are correspondingly increased.

Disclosure of Invention

The utility model aims at providing a simple structure, the effectual magnetism of treatment thoughtlessly congeals piping arrangement to the not enough of current device.

The magnetic coagulation dosing mixing pipeline comprises a mixing pipeline, a flocculation pipeline and a water outlet pipe, wherein the mixing pipeline consists of a contraction pipe, a throat pipe and a diffusion pipe along the water flow direction, the contraction pipe is gradually contracted and narrowed at the tail end and is connected with an inlet of the throat pipe, an inlet end of the diffusion pipe is connected with an outlet end of the throat pipe from narrow to wide, a PAC dosing device is connected into the contraction pipe through a pipeline, and a magnetic powder dosing device is connected into the diffusion pipe through a pipeline; flocculation pipeline comprises expansion section and reciprocal baffle section along the rivers direction, flocculation pipeline's expansion section is connected to mixing duct's diffusion tube 1, PAC throws the device and passes through the pipeline access expansion section, reciprocal baffle section is the rectangle pipeline, the inside interval of rectangle pipeline has evenly laid vertically baffle, two adjacent baffle are fixed on the inside top surface of rectangle pipeline, the below leaves the clearance with the bottom surface and forms the rivers passageway, another fixes on the inside bottom surface of rectangle pipeline, the top leaves the clearance with the top surface and forms the rivers passageway, reciprocal baffle section exit has connect an outlet pipe.

Sewage enters the pipeline and is mixed with PAC medicament added to the shrinkage pipe, then enters the throat pipe, the flow velocity is increased to be mixed with the acceleration, then enters the diffusion pipe to be mixed with the added magnetic powder and then flows into the expansion section of the flocculation pipeline to be mixed with PAM, the flow velocity is reduced in the section to avoid the formed floc particles to be crushed, and finally enters the reciprocating partition section to further promote the particles to collide with each other and coalesce and then is discharged into the next clarification unit through the water outlet pipe.

Furthermore, the top surface of the shrinkage pipe is flush with the top surface of the throat pipe, and the lower bottom surface of the diffusion pipe is flush with the lower bottom surface of the throat pipe, so that the structure can relieve air bubbles retained in the outlet section of the shrinkage pipe and the inlet section of the diffusion pipe.

Furthermore, 3 or 4 or 5 magnetic powder adding devices are arranged along the diffusion pipe, the adding amount of each device is one half of that of the previous device, and the adding amount is gradually reduced along the water flow direction to save the magnetic powder amount.

Furthermore, a screen is arranged at the outlet of the diffusion pipe of the mixing pipeline, and the function of uniform water distribution is achieved.

Further, the baffle bottom both sides that set up on reciprocal baffle section bottom surface evenly are equipped with a pair of horizontal arc, prevent that the flocculation particle deposit is in the bottom.

The utility model has the advantages that:

1. the pipeline device is utilized to carry out magnetic flocculation reaction, so that the equipment investment can be saved while the reaction effect is ensured.

2. The water flow speed is adjusted by utilizing a method of expanding and reducing the pipe diameter, so that the PAC and PAM medicaments are added and mixed conveniently.

Drawings

Fig. 1 is a schematic structural diagram of the utility model.

In the figure: 1 mixing pipeline, 1.1 contraction pipe, 1.2 throat pipe, 1.3 diffusion pipe, 2 flocculation pipeline, 2.1 expansion section, 2.2 reciprocating partition plate section, 3PAC dosing device, 4 magnetic powder dosing device, 5PAC dosing device, 6 screen mesh, 7 partition plate, 8 arc plate and 9 water outlet pipe.

Detailed Description

Example 1:

as shown in fig. 1, a magnetic coagulation dosing mixing pipe comprises a mixing pipe 1, a flocculation pipe 2 and a water outlet pipe 9, wherein the mixing pipe 1 consists of a contraction pipe 1.1, a throat pipe 1.2 and a diffusion pipe 1.3 along the water flow direction, the contraction pipe 1.1 is gradually contracted and narrowed at the tail end to be connected with an inlet of the throat pipe 1.2, an inlet end of the diffusion pipe 1.3 is connected with an outlet end of the throat pipe 1.2 from narrow to wide, the top surface of the contraction pipe 1.1 is flush with the top surface of the throat pipe 1.2, the lower bottom surface of the diffusion pipe 1.3 is flush with the lower bottom surface of the throat pipe 1.2, a PAC dosing device 3 is connected into the 1.1 contraction pipe through a pipeline, a magnetic powder dosing device 4 is connected into the diffusion pipe 1.3 through a pipeline, and the magnetic powder dosing device 4 is provided with 3, 4 or 5 units along the diffusion pipe 1.3; a screen 6 is arranged at the outlet of the diffusion pipe 1.3 of the mixing pipeline 1; the flocculation pipeline 2 consists of an expansion section 2.1 and a reciprocating partition section 2.2 along the water flow direction, a diffusion pipe 1.3 of the mixing pipeline 1 is connected with the expansion section 2.1 of the flocculation pipeline 2, a PAC adding device 5 is connected into the expansion section 2.1 through a pipeline, the reciprocating partition section 2.2 is a rectangular pipeline, and an outlet pipe 9 is connected at the outlet of the reciprocating partition section 2.2.

Sewage enters a pipeline and is mixed with PAC (polyaluminium chloride) medicament added to a shrinkage pipe 1.1, then enters a throat pipe 1.2, the flow velocity is increased to accelerate mixing, then enters a diffusion pipe 1.3 to be mixed with the added magnetic powder, the adding amount of the magnetic powder is gradually reduced along the water flow direction, then enters an expansion section 2.1 of a flocculation pipeline 2 to be mixed with PAM (polyacrylamide), the flow velocity is reduced at the section to avoid the formed floc particles from being crushed, and finally enters a reciprocating partition plate section 2.2 to further promote the particles to collide with each other and coalesce and then is discharged into a next clarification unit through a water outlet pipe 9.

Perpendicular baffle 7 has evenly been laid at the inside interval of pipeline of rectangular reciprocal baffle section 2.2, two adjacent baffles 7 are fixed on the inside top surface of rectangular pipeline for one, the below leaves the clearance with the bottom surface and forms the rivers passageway, another fixes on the inside bottom surface of rectangular pipeline, the top leaves the clearance with the top surface and forms the rivers passageway, 7 bottom both sides of baffle that set up on the reciprocal baffle section 2.2 bottom surface evenly are equipped with a pair of horizontal arc 8, prevent that the flocculation particle deposit is in the bottom.

Claims

1. The utility model provides a magnetism thoughtlessly congeals medicine hybrid line, includes hybrid line, flocculation pipeline and outlet pipe, its characterized in that: the mixing pipeline consists of a contraction pipe, a throat pipe and a diffusion pipe along the water flow direction, the contraction pipe is gradually contracted and narrowed at the tail end and is connected with an inlet of the throat pipe, an inlet end of the diffusion pipe is connected with an outlet end of the throat pipe from narrow to wide, a PAC dosing device is connected into the contraction pipe through a pipeline, and a magnetic powder dosing device is connected into the diffusion pipe through a pipeline; the flocculation pipeline comprises expansion section and reciprocal baffle section along the rivers direction, and the expansion section of flocculation pipeline is connected to the diffusion tube of hybrid piping, and PAC throws the device and inserts the expansion section through the pipeline, and reciprocal baffle section is the rectangle pipeline, and the inside interval of rectangle pipeline has evenly laid the vertically baffle, and reciprocal baffle section exit has connect an outlet pipe.

2. The magnetic coagulation medicine-adding mixing pipeline according to claim 1, characterized in that: the partition plates are arranged in the reciprocating partition plate sections, one of the two adjacent partition plates is fixed on the top surface inside the rectangular pipeline, a gap is reserved between the lower part of the partition plate and the bottom surface of the partition plate to form a water flow channel, the other partition plate is fixed on the bottom surface inside the rectangular pipeline, and a gap is reserved between the upper part of the partition plate and the top surface to form a water flow channel.

3. The magnetic coagulation medicine-adding mixing pipeline according to claim 1, characterized in that: the top surface of the contraction pipe is flush with the top surface of the throat pipe, and the lower bottom surface of the diffusion pipe is flush with the lower bottom surface of the throat pipe.

4. The magnetic coagulation medicine-adding mixing pipeline according to claim 1, characterized in that: the magnetic powder adding device is provided with 3 or 4 or 5 devices along the diffusion pipe, and the adding amount of each device is one half of that of the previous device.

5. The magnetic coagulation medicine-adding mixing pipeline according to claim 1, characterized in that: a screen is arranged at the outlet of the diffusion pipe of the mixing pipeline.

6. The magnetic coagulation medicine-adding mixing pipeline according to claim 1, characterized in that: a pair of horizontal arc plates are evenly arranged on two sides of the bottom end of the partition plate arranged on the bottom surface of the reciprocating partition plate section.