Cleaning and liquid contact with solids – Apparatus – With means for collecting escaping material
Patent
1974-12-12
1976-06-08
Bleutge, Robert L.
Cleaning and liquid contact with solids
Apparatus
With means for collecting escaping material
134 83, 134134, 134159, 134163, B08B 304, B08B 310
Patent
active
039616371
ABSTRACT:
Apparatus for washing aggregate material comprises a cylindrical drum including first and second end walls having central openings defining respectively an outlet and an inlet. The drum is inclined from the horizontal to provide flow of the aggregate material toward the outlet along the interior of the drum. The drum is mounted for rotation on its longitudinal axis, driven by a tangentially engaged chain and sprocket, and is supported and stabilized by a system of guide rolls. The drum contains a series of longitudinally extending agitator vanes spaced around the cylindrical inner wall of the drum. As the drum rotates, the vanes agitate the aggregate material in the presence of wash water for efficient aggregate cleaning. A series of scoop-shaped flume elements attached to and abutting the outlet end wall bodily rotate with the drum. The flume elements are imperforate and extend radially between the cylindrical inner wall of the drum and the outlet for pumping both wash and aggregate material to the outlet as the drum rotates. A wire mesh tail screen is connected to the outlet to dewater the washed aggregate delivered by the flume elements. A roller engages the outer surface of the tail screen to remove any aggregate pieces that might become jammed or stuck in the mesh. For minimum downtime, the agitator vanes and inlet end wall are attached to a replaceable liner element seated inside the drum. The interior of the drum may be promptly serviced by simply replacing the liner.
REFERENCES:
patent: 2185408 (1940-01-01), Kettenbach
patent: 2240442 (1941-04-01), Paul
patent: 2392911 (1946-01-01), Gaudet
patent: 3135668 (1964-06-01), Wesson
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