Importance

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Abstract

An improved vibrating screener is disclosed as including an inlet system which provides for tangential input of the material to be processed by the screener. A spacing frame is provided in connection with the tangential inlet in order to separate materials by disengaging particles from the input material as it spirals down the side of the spacing frame and feed tray. During the spiraling down action, the material decreases in velocity. During the separation process, an external loop is used for by-passed air, thereby providing the full diameter of the machine for the by-pass screen, to avoid by-pass screen blinding. The by-passed air can then be used to pick up the screened powder at the bottom of the unit; or, the by-passed air is reintroduced below the separating screen to flush the machine free of screened product.

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First Claim