An agitator is a device or mechanism to put something into motion by shaking or stirring.
In general, agitators usually consist of an impeller and a shaft. An impeller is a rotor located within a tube or conduit attached to the shaft. It helps enhance the pressure in order for the flow of a fluid be done. Modern industrial agitators incorporate process control to maintain better control over the mixing process.
Disk agitators - used for mixing solid particles with viscous liquids in order to reduce the size of fibrous particles on account of very strong shear stress produced in the liquid. Due to the local effect of such agitators, they are used in tandem with other types of agitator (e.g. gate/horseshoe agitators), or in a system of several disks installed on the same shaft.
Scope of application: the food industry (pastes), the pharmaceutical industry (pastes, ointments), the chemical industry