Industrial Mixers: Types and Operating Principle
Mixing is intensive moving mixture portions and particles inside the total volume. Mixing may be carried out for the following purposes:
1) to create optimal surface of reactants;
2) to change the substance physical state (for dissolution, crystallization, etc.);
3) for acceleration of chemical reactions and heat transfer;
4) for obtaining suspensions, emulsions, pastes.
Substances in the same and different states of aggregation may be mixed: solid components with solid components, solid components with liquid components, gaseous components with liquid components, liquid components with liquid components, etc. For example, during manufacturing silicate products, a mixture is composed of sand, lime and water. During manufacturing concrete products, a mixture is composed of cement, sand, gravel and water. Binders (cement) and water make an active part of the concrete mix. A chemical reaction between them results in cement stone firmly connecting the skeletal parts of concrete (sand and gravel). Concrete final strength, apart from appropriate composition, is greatly influenced by homogeneity of mixture achieved while mixing.
Classification of mixing machines.
As for the way of mixing, mixing machines and equipment can be divided into mechanical, gas and combined. Depending on the operation mode, there are batch type and continuous type mixing machines. As for the process applications, depending on physical state of the mixed material, mixing machines are divided into the following types:
- Machines for mixing liquid mixtures (sludge, slurry, glazes, dyes, etc.). Machines of this group may be cyclic and continuous. These include crane, slurry, propeller, turbine, planetary, rake and other mixers.
- Machines for mixing dry powder and granular materials (optionally followed by moistening). This group of machines mostly includes blade, runner, planetary mixers, and other types of mechanical mixers of forced action.
- Machines for making coarse suspensions (concrete mixes, mortars, ceramic and other masses). As for the way of mixing, these machines are divided into forced action mixers with moving blades and gravity mixers in which mixing is carried out in a rotating drum as a result of components raising and falling.
Vibrating mixers make a special group of machines for preparation of concrete and mortar. In these mixers mixing is carried out under the influence of multi-frequency vibrations.
Strommashina Samara Plant produces high-quality industrial equipment for sale since 1942. Among others, we offer blade type mixers. Buying a blade mixer produced by Strommashina means providing your company with a reliable and efficient equipment.