Continuous Mixing - Batch Mixing - Reactors - Dryers - Pharmaceutical - Polymer Processing - Dust Agglomeration - Operating Principles
DRUVATHERM® Reactor
Lödige DRUVATHERM® Reactors are batch-process, high speed reactors. A three dimensional movement of the product is generated by mixing elements, adapted to the process, rotating in a cylindrical drum which is jacketed for temperature regulation. The resultant frequent contact of the reactants ensures effective reaction and maximum yield.
DVT Reactors are built 
in sizes ranging from 5 liters to 30000 liters.
• High speed mixing of reactants
• Prevention of local over concentration
• No temperature gradients in the reaction zone
• Improved reaction of reactants providing higher yield and greater end product purity
• Multiphase process (reaction, heating, drying, granulation, cooling)
Mode of Operation
The high speed mixing elements force frequent contact between the reactants and intensive contact with the heated or cooled drum wall. In this way reactions in both homogeneous and heterogeneous phases can be carried out in any combination of solid/ liquid/gaseous, whereby the product consistency can be liquid, pasty, lumpy or even free flowing. High speed choppers fitted to the side of the machine drum provide an additional mixing effect whilst dispersing the reactants.
Range of Application
• Cellulose derivates (CMC, HPMC, HEMC, MC)
• Starch, guar and tamarind derivates · Ozone sterilization
• Chemical and special chemicals
• Intermediate pharmaceutical products
• Polymers
Optional Equipment
• Speed variation by hydrostatic drive unit or frequency regulation
• Product contact materials can be made, as required, of mild steel, austenitic steels, duplex steels, titanium or diverse nickel-based materials
• Pressure range to max. 40 bar
• Temperature range to max. 650 °C
• Shafts sealed by double-action mechanical face seals
• Shafts sealed by double-action mechanical face seals
• Drum volumes in sizes from 5 - 30 000 litres
