Classifying – separating – and assorting solids – With heat treatment
Reexamination Certificate
2011-05-10
2011-05-10
Reifsnyder, David A (Department: 1776)
Classifying, separating, and assorting solids
With heat treatment
C209S012100, C209S725000, C159S004010, C159S004020, C071S026000, C034S360000, C034S361000, C034S371000, C034S576000, C034S577000, C034S592000, C034S594000, C034S062000
Reexamination Certificate
active
07938271
ABSTRACT:
This consists of the preparation of powdered still slops from concentrated liquid still slops dried and converted into a powder in a conventional dryer (1) and then fed to a powder collecting cyclone (4), featuring at the lower outlet aperture of the collecting cyclone (4) a circular or snail-shaped or logarithmic spiral-shaped device (7) fed with a cool, dry air draught which generates a downward suction effect counter to the upward suction effect of the collecting cyclone (4), bringing about the falling and separation of the powder from the draught of hot air which carries the same. The cool, dry air carries the powder to the exterior for bagging, and the hot air exits upwards via the collecting cyclone (4) towards the flue (6), using a device for the recovery of the heat which it still bears as much as possible.
REFERENCES:
patent: 2375288 (1945-05-01), Wolcott
patent: 3721568 (1973-03-01), Wilson
patent: 2 059 283 (1994-11-01), None
patent: 2 113 820 (1998-05-01), None
patent: 27300 (1913-01-01), None
patent: 439595 (1935-12-01), None
Translation of the Written Opinion for PCT/ES2005/000177, Jan. 2008.
HPD Process Engineering, S.A.
Knobbe Martens Olson & Bear LLP
Reifsnyder David A
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