The Artisan Rototherm D is a jacketed, horizontal, mechanically-agitated dryer designed to continuously remove moisture or solvents from powders and bulk solids under vacuum, especially in applications where long residence times, up to several hours, are required.

Moist powder or bulk solids are fed into the Rototherm D at one end. The horizontal shell and the specially designed rotor are heated by steam or hot oil. The powder or bulk solids are agitated at low speed by the helical mixing bars which convey the solids bed continuously to the discharge end of the dryer in a plug flow manner. Operating under vacuum minimizes the drying temperature and avoids thermal degradation of heat sensitive materials. An adjustable weir at the discharge end controls the level and quantity of solids in the dryer betweeen 25% and 75% full. You control the residence time in the dryer by adjusting this weir or the feed rate.

The dry powder or bulk solids discharge over the weir and are collected either batch wise in a sealed vessel or continuously after passing through a proprietary vacuum lock vessel.

Rototherm D completing devolatilization of powder produced in one evaporation step in a horizontal, thin film Rototherm P.

More Information

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If your needs are more immediate, you may phone Perry Alasti at 781.893.6800 x239 or fax him at 781.647.0143 or send email to palasti@artisanind.com

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