Patent ID: 8317034
Filing Date: 2012-11-27
Classification: B03B

Abstract:
1. An apparatus for separating sand from a material to be processed comprising sand and animal manure, the apparatus comprising: a machine frame; a cylindrical housing rotatably supported by the machine frame thereby rotatable about a central axis of the cylindrical housing, the cylindrical housing having first and second opposite ends spaced apart along the central axis of the cylindrical housing, the first end having an endplate with an input opening for providing the material to be processed to an interior space of the cylindrical housing, the second end having an endplate with a discharge opening; one or more helical vanes positioned within the interior space of the cylindrical housing and rotatable with the cylindrical housing; at least one surface to receive sand separated from the material to be processed, the at least one surface positioned within at least a portion of the cylindrical housing and extending in a direction along the central axis of the cylindrical housing; at least one arcuate plate spaced apart from an inside surface of the cylindrical housing and an edge of the one or more helical vanes and positioned along a predetermined arc of the cylindrical housing; a transport device to remove sand separated from the material to be processed, the transport device positioned relative to the at least one surface; and a device to controllably rotate the cylindrical housing.