Solid material comminution or disintegration – Processes – With application of fluid or lubricant material
Patent
1990-10-29
1992-06-09
Rosenbaum, Mark
Solid material comminution or disintegration
Processes
With application of fluid or lubricant material
241 18, 241 21, 241 23, 241 26, 241 65, 241284, 241299, 241606, 422 26, 422 33, 422295, 422309, B02C 1912
Patent
active
051199947
ABSTRACT:
An apparatus and novel method for processing medical waste materials comprising an elongate pressure vessel of generally cylindrical configuration having an inlet end, and a closely fitting closure member for the inlet. An elongate drum of generally cylindrical configuration is mounted in the vessel for rotation about its longitudinal axis, which drum can be selectively driven in either rotative direction. The longitudinal axis of the drum is disposed at a slight angle of incline to the horizontal, placing the inlet end at a slightly higher elevation than the opposite end. A helically configured member is disposed along the interior perimeter of said drum, such that during rotation of the drum in a first rotative direction, the helically configured member moves the waste material in a direction away from the inlet end of the drum, whereas during rotation of the drum in the second rotative direction, the helically configured member moves the waste material toward the inlet. The helically configured member is utilized in conjunction with a plurality of non-obstructive lifting paddles that serve to effect a highly advantageous, very thorough mixing of the waste materials. Moisture and heat are typically utilized to aid the processing of the waste, such as by the addition of stem. Discharge of the fully processed waste material is effected when the drum is being rotated in the second rotative direction, after the closure member has been opened.
REFERENCES:
patent: 4974781 (1990-12-01), Placzek
Renfro Julian C.
Rosenbaum Mark
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