The mixer is a machine in which two or more kinds of materials are uniformly mixed by mechanical force and gravity.
The mixer can mix a variety of materials into a uniform mixture, but also increase the contact surface area of the material to promote the chemical reaction; also can accelerate the physical changes, such as granular solute by adding solvent, through the role of mixing machinery can accelerate the mixing.
Mixing requires all material to be mixed evenly distributed. The degree of mixing is divided into ideal mixing, random mixing and completely non-mixing three states. The degree of mixing of the various materials in the mixing machine depends on the proportion of the material to be mixed, the physical state and characteristics, and the type of mixing machine used and the duration of the mixing operation.
The fluidity of the granular solid is mainly due to the rotation of the container itself, or by the action of the moving parts contained in the container, repeatedly flipped, blended and mixed, such materials can also be used to produce convection or turbulence to achieve mixing The Solid particles of convection or turbulence is not easy to produce eddy current, mixing speed is much lower than the liquid mixture, the degree of mixing can only be achieved in a random mixture.
Poorly fluid, particles or powdered solids that adhere to each other are often required to use a mixing machine with mechanical flipping and pressing, rolling and the like.