Single Shaft Segmented Disc Processor Reactotherm

The Large Volume Processor program consists of horizontally arranged, heated reactors with twin (co- or counterrotating) shaft which provide intensive mixing and kneading. The highly versatile large volume processors Reasil and Reacom are characterised by the following advantages: Very large volumes The highest viscosity melts (up to 15,000 Pas) and solids can be processed efficiently Low shear processing Long residence times are achieved economically Mixing, devolatilization, reaction and phase change (from melt to solid) can take place in the same machine. A successful devolatilization or reaction system consists of the right processor design integrated with properly engineered subsystems. SMS can provide a complete system, including installation and start-up services, or full engineering and design documentation to allow you to add the necessary subsystems for our high volume processors.

Filmtruder and Viscon processors are specialized in the concentration, purification and devolatilization of products with viscosities up to 10,000 Pa (s) and are characterized by the following properties: Agitated thin film processing Unequaled surface renewal, resulting in the lowest residual volatile content Typically no stripping agents required Large free vapour volume compared to product hold-up, allowing very high volatile removal in one stage A successful thin film processing system consists of the right processor design integrated with properly engineered subsystems. SMS can provide a complete system, including installation and start-up services, or full engineering and design documentation to allow you to add the necessary subsystems for our thin film processor.

For the thermal separation of a mixture a thin film is produced at the heated wall of a cylindrical or conical evaporator. A distribution ring on the rotor distributes the liquid evenly across the periphery. Then, the blades fitted at the rotor spread the liquid as a thin film of min. 0.5 mm over the heat transfer surface. The model concept for the flow in the thin film evaporator assumes that prior to each rotor blade a bow wave is formed. In the gap between the rotor blade and the heating surface, fluid is supplied from the bow wave of a highly turbulent area with intense heat and mass transport. This results in a good heat transfer performance even with viscous products. In addition, the formation of deposits is avoided and the intensive mixing also protects temperature-sensitive products from overheating.