Introduction to the Four Dispersion Types of High Speed Dispersers

High-speed disperser (mixer) is an effective equipment for stirring, dispersing and dissolving, and is widely used in chemical industries such as coatings, inks, pigments, and adhesives. The optimization of the high-speed disperser is done in combination with the dispersing disc. Under the same rotating speed, if the discs with different diameters are selected, the dispersion effect obtained will often have a large gap. If the type of the dispersing disc is different, the dispersion effect will also be different. There will be differences.
　　Therefore, when designing a dispersing machine, the type of dispersing disc should be selected according to the type of product being processed.
　　Generally speaking, there are the following four types of dispersing discs to choose from:
　　Standard dispersing discs: traditional structure dispersing discs, suitable for various types of material dispersion, without obvious advantages and disadvantages, completely rely on the teeth around the disc to produce The shear force to disperse the material.
　　Turbine dispersing disc: mainly suitable for dispersing materials with high viscosity and high solid content. The propeller-like part in the middle of the dispersing disc will generate downward force during high-speed rotation, so during the dispersing process, the material can move downward from the hole in the middle of the dispersing disc under the action of this force to achieve effective dispersion. . At present, this kind of dispersing disk technology is widely used abroad.
　　Plus dispersing disc: Based on the improved design of the standard dispersing disc, the original intention is to transfer the material on the upper part of the dispersing disc downward through additional guiding holes to achieve effective dispersion. It is more suitable for products with high solid content, but this design only enters the lower part of the dispersion plate through the hole when the material flows through the guide hole, and the improvement effect is not obvious.
　　ET Dispersion Disc: As the name implies, there are six additional tooth-like metal pieces erected on the surface of the disc, which can speed up the mixing and increase the probability of collision between the filler and the metal pieces. However, in the high-speed dispersion process, the main factor that determines the dispersion effect is the dispersion. The linear velocity and shear force at the edge of the disc, and the existence of additional metal sheets will cause the material to follow the phenomenon, which reduces the linear velocity of each dispersing tooth on the dispersing disc relative to the powder to be dispersed in the material, so it is not recommended use.