Drying and gas or vapor contact with solids – Apparatus – With means to treat gas or vapor
Patent
1989-05-05
1991-01-08
Bennet, Henry A.
Drying and gas or vapor contact with solids
Apparatus
With means to treat gas or vapor
34210, 34214, 34185, 34 10, 34 57A, F26B 308
Patent
active
049825119
ABSTRACT:
In the process and apparatus for kiln-drying of malt, at least two zones (A and B) are provided for preliminary drying and one zone (A1) is provided for secondary drying and/cooling of the malt. The unsaturated exhaust air from the secondary drying and/or cooling zone (A1) is admixed as return air with the intake air system, while in the preliminary drying zones (A and B) respectively different preliminary drying times are achieved by the degree of their loading with malt, the design of the floor surface and/or by adjusting the volume flow, the temperature and/or the moisture content of the intake air, so that during the secondary drying in the secondary drying zone (A1), a predrying process is always in operation in at least one predrying zone (A or B). Each individual zone (A, B and A1) is separated in operation as to air technology from the others. The floor surface of a single floor kiln-drier (12) is subdivided by partition walls (26) into three zones (A, B and A1) and the air supply is designed so that the exhaust air is extracted unmixed zone by zone. The partition walls (26) are arranged so that each zone (A, B and A1) has a charging and discharging device (14), or the zones can be rotated into the area of a common charging and discharging device (14).
Air Frohlich Ag fur Energieruckgewinnung
Bennet Henry A.
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