The working principle of industrial agitators mainly depends on their internal agitator structure design and power drive system. The following is a detailed explanation of the working principle provided by China industrial agitator manufacturers:
一、 Overview of Working Principle
The working principle of an industrial agitator is to generate tangential and radial forces on the fluid through the rotation of the mixer (such as blades, screws, etc.), thereby achieving process objectives such as material mixing, dispersion, and heat transfer. During the rotation process, the mixer pushes the material to make circular motion inside the container, forming a certain circulation to promote the expected mixing effect of the material.
二、 Blender type and working principle
1. Paddle agitator: By rotating the blades, tangential and radial forces are exerted on the fluid. During the rotation process, the blade pushes the material to make circular motion inside the container, forming a certain circulation that promotes material mixing. Generally provides moderate stirring intensity, suitable for mixing low viscosity fluids.
2. Turbine agitator: When rotating at high speed, the blades not only generate strong tangential flow, but also promote radial and axial flow of the fluid due to the shape of the blades, forming a complex three-dimensional flow pattern. Provide high-intensity stirring with strong shear force on fluids, suitable for processes involving rapid mixing, dispersion, and heat transfer.
3. Propelled mixer: When rotating, it mainly generates axial flow, pushing the material to flow along the direction of the mixing shaft, like a pump, promoting fluid circulation, and forming an upward and downward rolling flow pattern in the container. It has a high circulation flow rate and is suitable for mixing containers with a large aspect ratio, which can effectively eliminate the phenomenon of stratification.
4. Anchor mixer: During the rotation process, on the one hand, the friction between the blade and the material drives the surrounding material to rotate, and on the other hand, due to the proximity of the anchor to the wall, it can scrape the container wall, preventing the material from sticking to the wall and scaling. Provides gentle stirring with low shear force, mainly used to maintain the overall uniformity of materials, and has outstanding effects on high viscosity and heat sensitive materials.
5. Spiral belt mixer: When rotating, the spiral belt pushes the material to move axially like a screw conveyor, and at the same time, the material also has certain circumferential and radial movements under the drive of the spiral belt, forming a complex omnidirectional flow. Excellent stirring and conveying ability for high viscosity materials, capable of achieving all-round flipping of materials from bottom to top and from inside to outside, with high mixing uniformity.
三、 The working characteristics of the mixer
Different types of agitators have different working characteristics, such as paddle agitators suitable for mixing low viscosity fluids, and turbine agitators suitable for high-intensity mixing and rapid mixing. These characteristics enable mixers to be widely used in fields such as chemical, petrochemical, pharmaceutical, and food industries, meeting different process requirements.
四、 Selection and Application of Blender
In practical applications, the selection of agitators needs to consider multiple factors such as material properties, process requirements, equipment size, and cost. By selecting and optimizing the mixer design reasonably, production efficiency can be improved, energy consumption can be reduced, and product quality can be enhanced.
In summary, the working principle of industrial agitators is to generate a force on the fluid through the rotation of the agitator, achieving process objectives such as material mixing, dispersion, and heat transfer. Different types of mixers have different working characteristics and application scenarioses, and multiple factors need to be considered comprehensively when selecting.