Desolventiser Toaster

The D.T. consists of a vertical cylindrical vessel with horizontal jacketed compartments i.e. Double Bottoms and a central rotating vertical shaft on which blades are mounted to sweeps in each compartment. The Material to be desolventised and toasted is fed in to the top compartment of D.T and heated with open steam.

Open steam condenses a lot of moisture in the material at the same time evaporating the solvent. The moisture up to 14 to 15% is condensed. The material then flows to lower compartment. In lower compartments the material is gradually heated to 115 to 120° C thus evaporating all the solvent, cooking the material and driving away extra moisture. The cooking in presence of moisture destroys undesirable enzymes. The resulting high temperature toasts the material. The solvent and water vapors from various compartments are led first to a dust catcher wherein they are scrubbed with hot water spray to remove fine dust and then led to a condenser to condense the vapors. The desoventised and toasted meal from bottom-most compartment discharges into a reddler conveyor.

Salient Features of Desolventiser Toster

Desolventisation Section: Desolventiser toaster is designed for efficient desolventising of extracted meal

• Indirect heating of material with improved contact with hot surface helps in properly desolventising the extracted meal.
• Internal vapour traveling arrangement reduce steam consumption.
• Mechanical/Pneumatic level controlling system maintains minimum bed height for complete desolventisation within short contact time.
• Provision of direct steam helps in maintaining quality of finished product & its moisture content.
• Selection of agitator and its drive with proper reduction gear box, FLP motor & fluid coupling reduce load on drive & minimizes shut down periods.