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US 4,231,529 AGranted
Impact decorticator
AssigneeCommonwealth Scientific and Industrial Research Organization
InventorsNorman J. Peck, Thomas J. Rowland, John R. Ashes
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AssigneeCommonwealth Scientific and Industrial Research Organization
InventorsNorman J. Peck, Thomas J. Rowland, John R. Ashes
Estimating the term…
An impact decorticator is disclosed having a rotor, preferably a squirrel-cage rotor, mounted for rotation about a substantially horizontal axis in a generally concentric and cylindrical casing. The casing is provided at the upper portion with an inlet opening and in the lower portion with an outlet opening for the material being processed and graded, substantially horizontally extending ripples are formed on the internal surface of the casing between the inlet and outlet openings (in the direction of rotor rotation), the ripples being graded in that they are spaced progressively closer together, become progressively sharper, become progressively deeper and/or approach more closely from the inlet toward a central zone between the inlet and outlet openings.
An impact decorticator having a rotor mounted for rotation about a substantially horizontal axis in a generally concentric and cylindrical casing having an internal surface and provided at the upper portion thereof with an inlet opening and in the lower portion thereof with an outlet opening for the material being processed, said impact decorticator being characterised in that graded, substantially horizontally extending ripples are formed on the internal surface of the casing between the inlet and outlet (in the direction of rotor rotation), said ripples having generally flat surfaces and being graded in that they become progressively sharper from the vicinity of the inlet opening, toward a central zone between the inlet and outlet openings the surfaces of the ripples which face opposite the direction of rotation having angles of presentation which decrease from about 85.degree. in the vicinity of the inlet opening to a minimum of about 50.degree. in the central zone, the angle of presentation being the angle between a respective flat surface which faces opposite the direction of rotation and a radial line drawn from the axis of rotation of the rotor to the bottom of that surface.
An impact decorticator for separating components of plant material primarily by impact forces without any substantial shearing or grinding action comprising:
Dependencies are inferred from the claim text.