Types and working principles of mixers

The main function of the mixer in the work is to make the materials conduct heat transfer so as to carry out the work, and there are many kinds of classification in the industry, either according to the mixing form or according to the mixing purpose, which can be divided into different types in terms of model and heat transfer type, and also in different industries in application At present, the commonly used mixing machines are divided into four categories: gas and low viscosity liquid mixer, medium and high viscosity liquid and paste mixing machine, thermoplastic material mixer, powder and granular solid material mixing machine In the work of the mixing machine, many kinds of materials can be mixed into a uniform mixture, such as crushed stone and water, cement, sand, etc mixed into concrete wet material, etc.; the contact surface area of materials can also be increased to promote chemical reaction; the physical change can also be accelerated, such as adding solvent to granular solute, through the role of the mixing machine, the dissolution and mixing can be accelerated For the mixing machinery of medium and high viscosity liquid and paste, it generally has strong shear effect; the thermoplastic material mixer is mainly used for mixing thermoplastic materials (such as rubber and plastic) and additives; the powder and granular solid material mixing machinery is mostly intermittent operation, but also includes the machinery with mixing and grinding effect, such as wheel rolling machine The flowing liquid pushes the liquid around it, resulting in the formation of circulating liquid flow in the dissolver The diffusion between the resulting liquids is called the main convection diffusion For the main convection diffusion and eddy diffusion caused by agitation, the surface area of molecular diffusion between different liquids is increased, the diffusion distance is reduced, and the time of molecular diffusion is shortened Therefore, the mixing of different pastes in the work is mainly to divide the materials to be mixed repeatedly and make them subject to the strong shearing effect caused by pressing, rolling, squeezing and other actions, and then through repeated combination and kneading, Zui can reach the required mixing degree This kind of mixing is difficult to achieve ideal mixing, only random mixing can be achieved