Apparatus for the drying of moist particulate material in superh

Details Apparatus for the drying of moist particulate material in superh Apparatus for the drying of moist particulate material in superh

1998-11-06

2000-09-26

Gravini, Stephen

Drying and gas or vapor contact with solids

Apparatus

With automatic control

34588, 34167, 34169, 34174, F26B 1310

Patent

active

061228419

ABSTRACT:
Apparatus for the drying of particulate material in superheated steam in a closed vessel (1). The vessel consists of a number of upwardly open, elongated and substantially vertical processing cells (2) which are placed around a central part with a heat exchanger (3). The last of these processing cells (2) has a closed bottom and is the discharge cell (4), while the remainder (2) have bottoms (5) through which steam can permeate. The processing cells (2), which lie at the side of one another, stand in mutual connection through openings (11) at the lowermost ends of the cells, so that the particulate material which is dried by the superheated steam which is blown up from the heat exchanger (3) through the steam-permeable bottoms (5) can pass from one processing cell (2) to the next through said openings (11). The opening (11) or the openings (11) between the discharge cell (4) and the adjacent processing cell or cells (2) are provided with an arrangement (16, 17) which can regulate the amount of particulate material which passes through the opening or openings (11), so that a sufficiently long drying time can be achieved.

REFERENCES:
patent: 4247302 (1981-01-01), Woldy et al.
patent: 4347670 (1982-09-01), Wear et al.
patent: 4813155 (1989-03-01), Jensen et al.
patent: 5289643 (1994-03-01), Jensen
patent: 5357686 (1994-10-01), Jensen
patent: 5470544 (1995-11-01), Galloway
"Pressurized Steam Drying of Beet Pulp" by Arne Sloth Jense, NIRO A/S Special print of article in International Sugar Journal, Nov. 1992.

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