A Brief Discussion on the Difference between Disperser and Stirrer

Dispersers and mixers are two commonly used mixing equipment, and they have some differences in principle, application and mixing effect. The following are the main differences between dispersers and mixers:

principle

Disperser: The disperser uses a high-speed rotating blade or rotor to generate shear and centrifugal forces to shear and disperse materials to smaller particle sizes. It is mainly used in the process of particle dispersion, dispersion mixing and solid dispersion.

Mixer: The mixer generates shearing and stirring force in the liquid through a mixer or stirring paddle to mix the materials. It is mainly used in the process of liquid mixing, homogenization and dissolution.

Mixing effect:

Disperser: The disperser is mainly used to disperse the particles to a smaller size, so that the solid particles are evenly dispersed in the liquid. It can achieve a high degree of dispersion and homogenization.

Mixer: The mixer is mainly used for liquid mixing, and the materials are mixed evenly through the movement of the mixer or stirring paddle. It can realize the mixing and dissolving effect of materials.

Application field:

Disperser: Disperser is widely used in particle dispersion, suspension preparation, colloid preparation, nanoparticle preparation and other processes, suitable for coatings, pigments, inks, cosmetics, medicine and other industries.

Mixer: Mixer is widely used in food, chemical, pharmaceutical, cosmetics and other industries for liquid mixing, homogenization, dissolution, emulsification and other processes.

Equipment structure:

Disperser: Dispersers usually have high-speed rotating blades or rotors for generating shearing and centrifugal force. Its structure is complex and requires high power and high-speed operation.

Mixer: Mixer is usually composed of mixer, motor, drive device and container. Its structure is relatively simple, and operation and maintenance are relatively easy.

Suitable equipment needs to be selected according to specific application needs and process requirements. Dispersers are more suitable for particle dispersion and solid dispersion processes, while mixers are more suitable for liquid mixing and dissolution processes. In some cases, dispersers and mixers can also be used in combination to achieve better mixing results.