Patent ID: 9061288
Filing Date: 2015-06-23
Classification: B02C,B22C

Abstract:
1. A device for recycling molding sand, the device comprising: (1) a base; (2) a vibratory reclaimer disposed on said base; said vibratory reclaimer comprising: (a) a vertical column, said vertical column being hollow and cylindrical in shape, said vertical column having an axis of rotation, and said vertical column having a side wall with at least one pour-out hole; (b) a batch tank disposed at the top of said vertical column, (c) a crusher grid, (d) at least two sieves with gradually decreasing meshes, and (e) a column bottom closing off a lower section of said vertical column, (3) a pneumatic cascade classifier disposed on said base and serially connected at its upper section to said vibratory reclaimer; and (4) at least two generators of vibrations disposed tangentially to said vertical column below said column bottom, said generators each having an axis of rotation situated in a plane parallel to said column axis and askew to said column axis, in a perpendicular projection, wherein said pour-out hole is connected with a transport trough, and said transport trough is rigidly mounted and rising in a spiral fashion along said side wall and at a top end passes through a channel extending to a feeding screw for feeding the molding sand to said pneumatic cascade classifier.