Pipeline mixing device for wastewater treatment

Abstract

The utility model discloses a pipeline mixing device for wastewater treatment, which is characterized in that a water inlet pipe and a medicament injection pipe are arranged at the lower end of a mixing pipe, a water outlet pipe is arranged at the upper end of the mixing pipe, a partition plate is arranged at the upper part in the mixing pipe, through holes are uniformly distributed on the partition plate, and a plurality of stirring blades are arranged below the partition plate in the mixing pipe and are arranged along the axial direction. After entering the mixing pipe from the water inlet pipe, waste water with pressure can be in contact and mixed with injected chemical agents immediately, in the process that the waste water and the chemical agents flow to the water outlet pipe, the waste water and the chemical agents firstly pass through the multiple stirring blades, the stirring blades rotate under the impact of water flow, and the chemical agents can be dispersed and mixed with the waste water; the plurality of mixing units are equivalent to the process of dispersing the chemical agent and mixing the chemical agent with the wastewater for multiple times, and when the mixed liquid passes through the partition plate, as the through holes are distributed in the partition plate, a strong turbulence effect can be generated, so that efficient mixing is realized.

Description

Technical Field

[0001] This utility model belongs to the technical field of wastewater treatment equipment, and in particular relates to a pipeline mixing device for wastewater treatment. Background Technology

[0002] In wastewater treatment, to improve treatment efficiency and effectiveness, it is usually necessary to thoroughly mix various chemical agents with the wastewater. Traditional mixing methods often use equipment such as stirred tanks and static mixers. These methods require batch mixing, meaning that the chemical agents and wastewater are fed into the stirred tank and stirred for a period of time. Whether the mixture is uniform depends on the stirring time. After uniform mixing, the wastewater is discharged from the stirred tank. The mixing efficiency is relatively slow, and these devices also have problems such as long mixing time, large footprint, and high maintenance costs. Utility Model Content

[0003] The purpose of this utility model is to provide a pipeline mixing device that is simple in structure and continuously mixes wastewater for treatment.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A wastewater treatment pipeline mixing device includes a mixing pipe, an inlet pipe and a reagent injection pipe at the lower end of the mixing pipe, an outlet pipe at the upper end of the mixing pipe, a baffle plate at the upper part of the mixing pipe with evenly distributed through holes, a stirring blade inside the mixing pipe below the baffle plate, multiple stirring blades arranged axially and rotatably connected to a rotating shaft connected to the mixing pipe, and a nozzle at one end of the reagent injection pipe inside the mixing pipe.

[0006] A further technical solution is that the drug injection tube includes a plurality of tubes arranged circumferentially along the mixing tube.

[0007] A further technical solution is that a discharge pipe is provided at the lower end of the mixing pipe.

[0008] A further technical solution is that the upper part of the mixing pipe, at a height lower than the partition, is a drain pipe.

[0009] A further technical solution is that the nozzle diameter is 2.0-5.0mm.

[0010] A further technical solution is that the mixing pipe includes a pipe body and a cap is provided at the top of the pipe body, a baffle is located between the pipe body and the cap, the pipe body, the cap and the baffle are fixedly connected by bolts, and the water outlet pipe is located at the top of the cap.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0012] 1. An inlet pipe and a chemical injection pipe are installed at the lower end of the mixing pipe, and an outlet pipe is installed at the upper end of the mixing pipe. A baffle is installed in the upper part of the mixing pipe, and through holes are evenly distributed on the baffle. Multiple stirring blades are installed below the baffle inside the mixing pipe. The inlet pipe is used to transport wastewater, the chemical injection pipe is used to inject chemical agents, the mixing pipe is used to mix wastewater and chemical agents, and the outlet pipe is used to discharge the mixed liquid. Multiple stirring blades are arranged axially to form multiple mixing units. After the pressurized wastewater enters the mixing pipe from the inlet pipe, it can immediately come into contact with and mix with the injected chemical agents. As the wastewater and chemical agents flow to the outlet pipe, they must first pass through multiple stirring blades. The stirring blades rotate under the impact of the water flow, which can disperse the chemical agents and mix them with the wastewater. Multiple mixing units are equivalent to performing multiple processes of dispersing chemical agents and mixing them with wastewater. When the mixed liquid passes through the baffle, due to the through holes distributed on the baffle, a strong turbulence effect is generated, thereby achieving efficient mixing. (Turbulence refers to the irregular and chaotic flow phenomenon that occurs in fluids under high-speed or complex flow conditions. In this case, the liquid flows through...) Figure 5 After passing through small orifices, the flow rate increases, and the stirring blades are also rotating, resulting in a chaotic and irregular flow of the liquid, which enhances the mixing effect.

[0013] 2. The pipeline mixing device of this utility model, through the design of stirring blades and baffles, can achieve efficient mixing of wastewater and chemical agents in a short time with high mixing uniformity;

[0014] 3. This utility model device has a compact structure, is easy to install and maintain, occupies a small area, and is suitable for various wastewater treatment sites;

[0015] 4. This utility model device uses common materials and components, resulting in low manufacturing costs, low operating energy consumption, economic practicality, and strong adaptability.

[0016] 5. The pipeline mixing device of this utility model is suitable for different types of wastewater treatment processes and can meet the mixing requirements of various chemical agents. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the stirring blade described in this utility model;

[0019] Figure 3 This is a top view of the structure of this utility model;

[0020] Figure 4 This is a top view of the stirring blade of this utility model;

[0021] Figure 5This is a schematic diagram of the partition structure described in this utility model. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] like Figures 1-5 As shown. A wastewater treatment pipeline mixing device includes a mixing pipe 1, with an inlet pipe 2 and a reagent injection pipe 4 at the lower end of the mixing pipe 1, and an outlet pipe 10 at the upper end of the mixing pipe 1. A baffle 7 is provided in the upper part of the mixing pipe 1, and through holes 9 are evenly distributed on the baffle 7. A stirring blade 11 is provided below the baffle 7 inside the mixing pipe 1. Multiple stirring blades 11 are arranged axially, and the multiple stirring blades 11 are rotatably connected to a rotating shaft 12, which is connected to the mixing pipe 1. A nozzle 6 is provided at one end of the reagent injection pipe 4 located inside the mixing pipe 1.

[0024] During use, wastewater is pumped into the inlet pipe 2 by a wastewater pump, and the chemical pump is turned on at the same time. The chemical enters the nozzle 6 through the chemical injection pipe 4. After being pressurized by the nozzle 6, it is injected into the mixing pipe 1 to mix with the solution. This is the initial mixing. When the mixed liquid flows in the mixing pipe 1, it will drive the stirring blades 11 to rotate. This is due to the impact of the mixed liquid flow and the fact that multiple stirring blades 11 can rotate independently. Therefore, the mixed liquid will cause the stirring blades 11 to rotate, achieving the effect of secondary mixing. After passing through the mixing pipe 1, the mixed liquid generates turbulence through the baffle 7. When the mixed liquid flows and impacts the baffle 7, some of the mixed liquid is deflected and mixed with the subsequent liquid. Some of the mixed liquid passes through the through hole 9 and mixes above the baffle 7. Since the flow velocity of the fluid will increase after the pipe diameter decreases, it can be fully mixed above the baffle 7, achieving the effect of tertiary mixing. Finally, it flows out through the outlet pipe 10 and enters the next process. During operation, the diameter of the nozzle 6 is 2.0-5.0 mm. The reagent injection tube 4 mainly adds sodium hydroxide and flocculant. The nozzle 6 is designed to allow the reagent to disperse quickly and come into full contact with the wastewater, reducing eddies and dead zones, ensuring uniform flow of liquid in the mixing tube 1, and improving the thoroughness of mixing between wastewater and reagent.

[0025] The agent injection pipe 4 includes multiple pipes arranged circumferentially along the mixing pipe 1. During the initial mixing, multiple agent injection pipes 4 simultaneously inject agents into the wastewater from all sides, which is beneficial for mixing the agents with the wastewater.

[0026] A discharge pipe 3 is provided at the lower end of the mixing pipe 1. After the wastewater treatment is completed, the accumulated liquid inside the mixing device is drained through the discharge pipe 3.

[0027] The upper part of the mixing pipe 1, and at a height lower than the partition plate 7, is the drain pipe 5. It is necessary to detect changes in the outlet pressure of the wastewater pump and adjust the pressure in a timely manner through the drain pipe 5 to ensure stable operation of the equipment.

[0028] The mixing pipe 1 includes a pipe body and a cap 8 is provided at the top of the pipe body. A baffle 7 is located between the pipe body and the cap 8. The pipe body, the cap 8 and the baffle 7 are fixedly connected by bolts. The outlet pipe 10 is located at the top of the cap 8. After the mixing pipe 1 is emptied, the fixing bolts of the cap 8 and the baffle 7 can be opened for cleaning and maintenance, which also facilitates the maintenance and replacement of the internal stirring blades 11.

[0029] The above are merely preferred embodiments of this utility model.

Claims

1. A pipe mixing device for wastewater treatment, characterized by, The utility model relates to a medicine injection pipe and a mixing pipe, and belongs to the field of water treatment equipment.

2. A pipeline mixing device for wastewater treatment according to claim 1, characterized in that, The medicine injection pipe (4) comprises a plurality of nozzles (6) arranged along the mixing pipe (1) in a ring shape.

3. A pipe mixing device for wastewater treatment according to claim 1, wherein The mixing pipe (1) is provided with a discharge pipe (3) at the lower end.

4. A pipe mixing device for wastewater treatment according to claim 1, wherein The mixing pipe (1) is provided with a discharge pipe (3) at the lower end.

5. A pipe mixing device for wastewater treatment according to claim 1, wherein The diameter of the nozzle (6) is 2.0-5.0 mm.

6. A pipeline mixing device for wastewater treatment according to claim 1, wherein The mixing pipe (1) comprises a pipe body and a head (8) arranged at the top of the pipe body, the partition plate (7) is arranged between the pipe body and the head (8), the pipe body, the head (8) and the partition plate (7) are fixedly connected by bolts, and the water outlet pipe (10) is arranged at the top of the head (8).

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