Rotary drum dryer

Details Rotary drum dryer Rotary drum dryer

1997-04-23

1998-04-21

Kilner, Christopher

Drying and gas or vapor contact with solids

Process

With nondrying treating of material

34385, 34499, F26B 700

Patent

active

057406170

ABSTRACT:
A rotary drum dryer dries a slurry into discrete solid particles. The dryer contains three long horizontal cylinders: an outer cylinder, a perforated cylinder inside the outer cylinder, and an inner cylinder inside the perforated cylinder. As the cylinders rotate, slurry in the outer cylinder is compressed through the perforated cylinder by the inner cylinder and deposited onto the inner wall surface of the outer cylinder in discrete masses. The masses are dried as the cylinder rotates and then are removed by a scraper and conveyed outside the dryer for further treatment and/or packaging.

REFERENCES:
patent: 1250427 (1917-12-01), Campbell
patent: 2044744 (1936-05-01), Hansen
patent: 2890942 (1959-06-01), Webster et al.
patent: 4067119 (1978-01-01), Overton
patent: 5373647 (1994-12-01), Bernes et al.
patent: 5561927 (1996-10-01), Ratajczek

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