Mixing equipment is a mechanical equipment that uses mechanical force and gravity to uniformly mix two or more materials. During the mixing process, the contact surface area of the materials can be increased to promote chemical reactions; it can also accelerate physical changes.
Commonly used mixing equipment is divided into four categories: gas and low viscosity liquid mixers, medium and high viscosity liquid and paste mixers, and powder and granular solid material mixing machines.
The gas and low-viscosity liquid mixer is characterized by simple structure, no rotating parts, small maintenance and repair, and low energy consumption. This type of mixing machinery is divided into four types: air mixing, pipeline mixing, jet mixing and forced circulation mixing.
Mixer accessories are mainly made of wear-resistant alloy materials, including high-speed mixing blades, mixing fins, wear-resistant liners, mixing arms, mixing shovel, planetary shovel, mixing coulter, mixing rod, mixing rake and other medium and high viscosity liquids and pastes The mixing machinery of the material generally has a strong shearing effect.
Thermoplastic material mixing machines are mainly used for mixing thermoplastic materials (such as rubber and plastics) with additives; powder and granular solid material mixing machines are mostly intermittent operations, and they also include mixing and grinding machines, such as wheel rolling machines.
The moving parts of the mechanical agitator will also have a shearing effect on the liquid when it rotates. When the liquid flows through the wall of the vessel and various fixed components installed in the container, it will also be subjected to shearing. These shearing effects will cause a lot of The local vortex spreads.
For liquids with different densities and compositions that are not compatible with each other, the shearing effect and strong turbulence produced by stirring will tear the dense liquid into small droplets and make it evenly dispersed in the main liquid.
Common mixer types:
Common mixers are: coulter mixer, ribbon mixer, non-gravity mixer, V-type mixer, double spiral cone mixer, high and low speed liquid mixer, planetary power mixer, etc. .