Principle and performance of new colloid mill; The new colloid mill is a dairy equipment, which is an improved version on the basis of the traditional JM-FB model. The new model is more durable, stable and beautiful than the old model, and the performance of the machine is further improved and improved on the original basis. Haoxing JM series colloid mill is a wet material micro-processing machine. Its principle is that through the relative motion of rotor grinding teeth and stator grinding teeth with different geometric shapes under high-speed rotation, the processed material will be subjected to strong shear force, friction force and high-frequency vibration when passing through its variable annular gap under the combined action of self-weight and centrifugal force. Achieve the purposes of dispersion, pulverization, emulsification, homogenization and mixing. There are many kinds of gear grinding designs according to different material properties and processing requirements. The machine has the characteristics of reliable performance, simple operation, balanced operation, low noise, easy maintenance, corrosion resistance, wide application and complete variety, and its main technical indicators have reached the advanced level of similar products at home and abroad. How to make colloid mill play a greater role; Generally speaking, the refining effect of colloid mill is weaker than that of homogenizer, but it has strong adaptability to materials (such as high viscosity and large particles), so in many occasions, it is used in the front of homogenizer or in high viscosity occasions. When there are many solid substances, colloid mill is often used to refine them. Colloidal grinding is that the rotating teeth (or rotor) are driven by the motor through the belt drive to rotate relatively at high speed with the matching fixed teeth (or stator). The processed material is pressurized by its own weight or external pressure (which can be generated by the pump) to generate downward spiral impact force, which is subjected to strong physical effects such as shearing force, friction force and high-frequency vibration when passing through the gap between the rotating teeth (the gap is adjustable), so that the material is effectively emulsified, dispersed and crushed. Colloid mill is a kind of centrifugal equipment at first, which has the advantages of simple structure and convenient maintenance, and is suitable for materials with higher viscosity and larger particles. The main structure of colloid mill determines its adaptability.First of all, due to centrifugal movement, its flow rate is not constant, corresponding to the same viscosity of the material, its flow rate changes greatly. For example, the same equipment, when dealing with viscous paint materials and thin milk fluid, the flow rate can be more than 10 times different; Secondly, due to the high-speed friction between the rotating stator and the material, it is easy to generate large heat, which makes the processed material denatured;Thirdly, the surface of the mixer is easy to wear, and after wear, the refining effect will be significantly reduced. Colloid mill is a kind of dynamic colloid mill composed of multi-stage rotor/stator homogenizing gear. The rotor and stator are composed of several concentric rings with radial slots and/or holes. The gear speed can be as high as 50m /s, but the shear gap between rings is far less than 1 mm. In addition, the combined machine seal circulation device equipped with water-flushing cooling water emulsifying machine improves the mechanical properties of colloid mill and prolongs the service life of the machine and machine seal several times.