Fluid/solid interaction apparatus

Details Fluid/solid interaction apparatus Fluid/solid interaction apparatus

2005-04-19

2005-04-19

Gravini, Stephen (Department: 3749)

Drying and gas or vapor contact with solids

Apparatus

Gravity flow type

Reexamination Certificate

active

06880263

ABSTRACT:
Apparatus (1) is provided for passing a fluid through a solid material (5). Apparatus (1) has an enclosure (2) with an upper part (7) in which the solid material is received. The solid material flows downward through one or more passages (13) which extend between end walls (11and12). Opposing sides of the or each passage are formed by side plates (14, 15) of fluid inlet and outled ducts (9, 10). The side plates are perforated so that fluid can pass transversely through the solid material flowing through each passage. The inlet and outlet ducts (9and10) have inlet parts (16and17) respectively, outside the enclosure. Solid material arrives at a lower part (8) of the enclosure and then leaves the enclosure. The apparatus (1) can be made compactly for the degree of fluid/solid contact provided. It is applicable to many applications such as drying of solids, heat exchange between fluids and solids, dust removal from gases, chemical reactors and humidifying/dehumidifying of fluids. A particular application for which apparatus (1) is suited is the reduction of moisture content of brown coal being used as fuel in electric power generation.

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