| 摘要 |
PURPOSE: Provided is a transfer impeller in a crusher for shells which uses plural screw pieces to form a triangular screw at the impeller and increase contact area between the shell and the impeller so that it maximizes efficiency in crushing the shells. CONSTITUTION: In the transfer impeller(10) which includes plural spiral wheels(13) at the outer circumference of a rotating drum(12) having a drum axis(11), the transfer impeller in the crusher for the shells comprises the parts of: plural hexagonal screw pieces(14) which are inserted into an axis of the rotating drum having the wheel to form the triangular screw; a drum insertion part which is formed at the center of the screw piece; and plural wheel insertion parts which are formed at the outer circumference of the drum insertion part.
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