Chemical apparatus and process disinfecting – deodorizing – preser – Physical type apparatus – Means separating or dissolving a material constituent
Patent
1980-10-06
1981-09-15
Lutter, Frank W.
Chemical apparatus and process disinfecting, deodorizing, preser
Physical type apparatus
Means separating or dissolving a material constituent
127 45, 134 69, 165111, 366228, B01D 1102, C13D 112
Patent
active
042897343
ABSTRACT:
Apparatus for countercurrently contacting solids with a liquid comprises a rotatable drum housing a screw conveyor having helical turns affixed to the cylindrical side wall of the drum and defining a helical passageway for the solids between the turns, the passageway is divided into a series of compartments. Each compartment has a grating receiving the solids and raising the received solids while liquid is drained through the grating and then permitting the drained solids to fall into a succeeding compartment, and an imperforate partition trailing the grating in the direction of rotation of the drum, the partition defining a chamber receiving the liquid drained from the solids with the adjacent side wall of the drum and the helical screw turns. A passageway interconnects each chamber with the upstream compartment and these passageways extend along the side wall of the drum. Each passageway communicates with the upstream compartment it feeds through openings in a trailing part thereof and through orifices in a leading part thereof, the leading part adjoining the imperforate partition. A perforate dike defines the orifices and is arranged in the leading part. The dike is disposed approximately in the median plane of the compartment and extends transversely to the axis of the drum.
REFERENCES:
patent: 2012298 (1935-08-01), Berge
patent: 2337137 (1943-12-01), Thompson et al.
patent: 2433552 (1947-12-01), Haney et al.
patent: 2569199 (1951-09-01), Smet
patent: 2998307 (1961-08-01), Walker
patent: 3297410 (1967-01-01), De Lisle
patent: 3660042 (1972-05-01), Duchateau et al.
patent: 3809538 (1974-05-01), Duchateau
patent: 3930801 (1976-01-01), Pinet
patent: 4049386 (1977-09-01), Gillain
Fives-Cail Babcock
Kelman Kurt
Lutter Frank W.
Phillips Roger F.
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