PP PE Storage Tank with Agitator Mixing Stirrer

PP PE Storage Tank With Agitator Mixing Stirrer

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Usage Industries: Food, Chemical, Agriculture, Oil, Dyeing, Every Wastewater Treatment
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A PE (Polyethylene) tank agitator is a crucial piece of equipment used in a wide range of industries to mix, blend, or disperse substances within a PE tank. Here is a comprehensive description:
 
Structure
 
Agitator Shaft
 
- This is the central component around which the agitation process occurs. The shaft is typically made of a corrosion - resistant material, such as stainless steel. It is designed to be strong enough to withstand the torque generated during the rotation of the impellers and the forces exerted by the liquid being agitated.
 
- The shaft is connected to a drive mechanism at one end and extends into the PE tank, where the impellers are attached at the other end.
 
Impellers
 
- There are various types of impellers used in a PE tank agitator, depending on the specific application and the nature of the substances being mixed.
 
- Paddle Impellers: These are simple, flat - bladed impellers. They are effective for low - viscosity liquids and applications where gentle mixing and circulation are required, such as in some chemical blending processes where the goal is to evenly distribute additives in a base liquid.
 
- Propeller Impellers: Resembling a ship's propeller, they are designed to generate high - velocity axial flow. Propeller impellers are suitable for applications where rapid mixing and high - volume circulation are needed, like in large - scale water treatment tanks where chemicals need to be quickly and thoroughly dispersed.
 
- Turbine Impellers: Turbine impellers have multiple curved blades. They create a radial flow pattern and are useful for applications that require high - shear mixing, such as in the dispersion of solids in liquids or the emulsification of immiscible liquids. For example, in the production of paints, turbine impellers can break down pigment particles and evenly disperse them in the paint medium.
 
Drive Mechanism
 
- The drive mechanism provides the power to rotate the agitator shaft. It usually consists of an electric motor, a gearbox, and a coupling.
 
- The electric motor supplies the rotational energy. The gearbox is used to adjust the speed of the motor output to the appropriate speed for the agitator. This is important because different mixing applications require different rotational speeds. For instance, a slow - speed agitation may be needed for delicate substances to avoid over - mixing, while a high - speed operation is required for more vigorous mixing tasks.
 
- The coupling connects the motor shaft to the agitator shaft, ensuring efficient transfer of power.
 
Working Principle
 
Circulation and Mixing
 
- When the motor is started, it rotates the agitator shaft through the gearbox. The impellers, attached to the shaft, then start to rotate within the liquid inside the PE tank.
 
- As the impellers rotate, they push the liquid in the tank, creating a flow pattern. This flow pattern can be axial (parallel to the shaft axis, as in the case of propeller impellers), radial (perpendicular to the shaft axis, as with turbine impellers), or a combination of both. The liquid is continuously circulated and mixed, which helps in achieving a homogeneous blend of different substances.
 
Shearing and Dispersion
 
- In applications where solids need to be dispersed in a liquid or immiscible liquids need to be emulsified, the impellers generate shear forces. The high - speed rotation of the impellers, especially in the case of turbine impellers, causes the liquid to flow at different velocities in close proximity. This velocity gradient creates shear forces that break down agglomerates of solids or droplets of immiscible liquids, dispersing them evenly throughout the continuous phase.
 
Applications
 
Chemical Industry
 
- In chemical manufacturing, PE tank agitators are used for blending different chemical reactants to ensure uniform reaction conditions. For example, in the production of polymers, monomers and catalysts need to be well - mixed before the polymerization reaction occurs.
 
- They are also used in the preparation of chemical solutions, such as in the formulation of cleaning agents, where various chemicals need to be thoroughly mixed to achieve the desired properties.
 
Food and Beverage Industry
 
- In the production of beverages like juices, syrups, and soft drinks, agitators are used to mix flavorings, sweeteners, and other additives evenly in the base liquid.
 
- In food processing, for example, in the production of sauces and dressings, agitators help in emulsifying oil and water - based ingredients and in evenly distributing spices and thickeners.
 
Water and Wastewater Treatment
 
- In water treatment plants, agitators are used to mix chemicals such as coagulants and flocculants with raw water. This mixing promotes the formation of larger particles that can be easily removed by sedimentation or filtration processes.
 
- In wastewater treatment, agitators are used in biological treatment tanks to keep the activated sludge in suspension and to ensure proper contact between the microorganisms and the pollutants in the wastewater.
 
Advantages
 
Corrosion Resistance
 
- Since the agitator is often used in a PE tank, which is itself highly resistant to corrosion, the overall system is well - suited for handling corrosive liquids. This makes it ideal for applications in the chemical industry where many substances are highly reactive and corrosive.
 
Customizability
 
- The choice of impeller type, shaft length, and drive mechanism can be customized according to the specific requirements of the application. This allows for flexibility in designing an agitator system that can handle different liquid viscosities, tank sizes, and mixing objectives.
 
Energy Efficiency
 
- Modern agitator designs, with optimized impeller shapes and efficient drive mechanisms, can achieve effective mixing with relatively low energy consumption. This is beneficial for industries where large - scale mixing operations are carried out continuously, as it helps in reducing operational costs.
 
Disadvantages
 
Maintenance Requirements
 
- The moving parts of the agitator, such as the motor, gearbox, and impellers, require regular maintenance. This includes tasks like lubricating the bearings, checking for wear and tear of the impellers, and ensuring proper alignment of the shaft. Failure to perform regular maintenance can lead to reduced efficiency and potentially costly breakdowns.
 
Limited to Static Tanks
 
- PE tank agitators are designed to work within a fixed - position tank. They are not suitable for applications where the mixing needs to occur in a mobile or dynamic environment. This restricts their use in certain industries or processes that require mixing during transportation or in non - stationary vessels.