Vrieco-Nauta Conical Vacuum Dryer

Description

Heat energy is basically transferred into the product through a jacketed vessel wall causing solvents or moisture residues to evaporate. A rotating screw orbits along the vessel wall and helps the vapours to escape to the surface, at the same time providing a frequent exchange of particles in contact with the heated surface.

A Vacuum system keeps the vessel under constant vacuum and removes vapours from the vessel. Entrained dust particles are separated in a filter mounted above the dryer.

Features / Benefits

• Fast drying times as the mixing screw continuously circulates the product from the bottom to the top of the vessel improving heat transfer conditions.

• Final moisture after drying is possible down to 0%.

• Low energy consumption.

• Gentle to product.

• Quick and efficient removal of vapours.

• Recovery of pure solvents is possible.

• Dried solids are suitable for direct use.

• Easy to clean.

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Applications

• Particularly suitable for final drying of powders, granules, pastes and slurries especially when they are brittle and/or temperature sensitive.
• Extraction.
• Alkalisation.
• Crystallisation.
• Reaction.

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Layout Drawing

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