Drying and gas or vapor contact with solids – Apparatus – Gravity flow type
Patent
1975-02-18
1976-05-11
Camby, John J.
Drying and gas or vapor contact with solids
Apparatus
Gravity flow type
34 65, 34171, F26B 1900
Patent
active
039552888
ABSTRACT:
Continuous flow grain drying apparatus having an upper, foraminous drying enclosure into which grain to be dried is introduced and which communicates with a lower, foraminous cooling enclosure. A first enclosed, foraminous duct in the upper enclosure defines therewith a first pair of passages which divide the downward flow of grain into two separate parallel streams, a blower and burner combination communicating with the first duct causing outward flow of heated air simultaneously through the first passages. A second, enclosed, foraminous duct is provided in the lower enclosure defining therewith a second pair of passages and a divider connects the first and second ducts and extends through the open ends of the upper and lower enclosures thereby coupling respective ones of the first and second passages so that the two streams respectively continue separate, downward, parallel flow through the second passages. A blower communicates with the second duct causing an outward flow of cooling air simultaneously through the second passages. The two streams of grain are discharged, separately, from the bottom of the lower enclosure. The lower enclosure and second duct are formed so as to divide each of the second passages into upper and lower sections. The upper passage sections are respectively wider than the lower passage sections so that the grain in the upper passage sections is cooled more slowly than the grain in the lower passage sections thereby temper-cooling the grain.
REFERENCES:
patent: 3313040 (1967-04-01), Mathews
patent: 3526969 (1970-09-01), Alms et al.
patent: 3869809 (1975-03-01), Keirn
Camby John J.
Yeung James C.
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