The high-speed mixer (high-speed disperser) is the simplest type of dispersing equipment. Its main function is to pre-disperse the pigment, and then cooperate with the sand mill to disperse the pigment.
The high-speed mixer forms a turbulent flow zone through the high-speed rotation of the national disc serrated impeller (see Figure 1-1) in the material. In this area, the pigment particles are subjected to strong shear and impact, so that they are quickly dispersed into the paint paste. But at this time, if high pressure is not generated, the pigment particles cannot be well de-agglomerated. Outside this area, laminar flow is formed, divided into upper and lower streams, so that the paint slurry can be fully circulated and stirred and mixed evenly.
The advantages of the high-speed mixer are: simple structure, easy operation, maintenance, and maintenance; flexible use, mixing, dispersing, and blending processes can be used; easy cleaning, and high production efficiency. It is one of the main production equipment currently used in architectural coatings factories (see Figure 1-2).
