A mixer is a mechanical device that uses mechanical force, gravity and other effects to uniformly blend two or more materials. Mixing machinery is widely used in various industrial productions such as pharmaceuticals, food, chemicals, agriculture, and construction, as well as in daily life.

  The mixer can blend various materials into a uniform mixture. For instance, in the pharmaceutical industry, it can evenly mix raw materials with different components to form compound prescriptions. It can also increase the contact surface area of materials to promote chemical reactions. It can also accelerate physical changes. For instance, when granular solutes are added to solvents, the dissolution and uniform mixing can be accelerated through the action of mixing machinery.

  Commonly used mixing machinery is classified into four major categories: gas and low-viscosity liquid mixers, medium and high-viscosity liquid and paste mixers, thermoplastic material mixers, and powder and granular solid material mixers.

  Here, we mainly introduce the solid material mixer.

  Most powder and granular solid material mixers are operated intermittently. Currently, there are three types of models on the market: V-type mixers, three-dimensional mixers and trough mixers.

  When mixing, it is required that all the materials involved in the mixing be evenly distributed. The degree of mixing is divided into three states: ideal mixing, random mixing and complete non-mixing. The degree of mixing of various materials in mixing machinery depends on factors such as the proportion, physical state and characteristics of the materials to be mixed, as well as the type of mixing machinery used and the duration of the mixing operation.

  Granular solids with good fluidity are mainly mixed by the rotation of the container itself or by the action of moving parts installed inside the container, which are repeatedly turned over and mixed. In such cases, a V-type mixer is generally used.

  For materials with poor fluidity and significant proportion differences, simple rotary action alone is not enough. It requires multi-directional and multi-angle actions to achieve thorough mixing. In this situation, a three-dimensional mixer or a multi-dimensional mixer is generally used.

  For particles or powdery solids with poor fluidity and mutual adhesion, a mixer with mechanical flipping and pressing, rolling and other actions is often required. In such cases, a trough mixer is generally used.