Working principle and performance characteristics of high shear emulsifier

In industry, when two immiscible liquids or solid-liquid mixtures are mixed, an emulsifier is usually used to achieve oil-water emulsification and achieve dispersion and homogenization. When oil-water two-phase media are mixed to form water in oil or oil in water, they cannot exist stably and require suitable emulsifiers to improve the surface tension of the system. At the same time, strong cutting and dispersion are needed to break down the medium into small particles, ultimately forming a stable and uniform dispersion system, achieving good emulsification effect.

At present, the application of emulsifiers is not limited to emulsification. Emulsifier has a strong shear effect, which can crush the powder particles under destructive impact, ultimately refining them to small particle sizes, and then fully mixing the solid particles into the liquid to form a relatively constant suspension.

The principle of high shear emulsifier

The shearing head is composed of a rotor and a stator, with the rotor and stator meshing with each other, and each stage of the stator has several layers of gear rings. The high-speed rotation of the rotor generates strong centrifugal force, forming a strong negative pressure zone. The material is sucked into the working chamber and subjected to a combination of shear, centrifugal compression, impact tearing, and turbulence in the gap between the stator and rotor, resulting in the tension of split droplets. After the liquid leaves the stator small hole, the pressure rises again, resulting in cavitation effect. The homogenizer head rotates at high speed to shear, disperse, and impact materials. This way, the material will become finer and achieve homogenization.

Main performance characteristics of high shear emulsifier:

1. Also known as centrifugal homogenizer, it is particularly suitable for the pre-treatment section of materials;

2. It has a large processing capacity, low energy consumption, and is suitable for industrial continuous production;

3. The processed material has the characteristics of narrow particle distribution range and good uniformity;

4. Time saving, efficient, energy-saving, and high production efficiency;

5. Easy to assemble and disassemble, easy to clean, meeting the CIP cleaning needs of different occasions;

6. It has certain self suction and low head conveying functions;

7. *, the material is dispersed and emulsified;

8. Low noise, smooth operation, and easy maintenance;