公开(公告)号：US3744632A

公开(公告)日：1973-07-10

申请号：US3744632D

申请日：1970-12-03

Applicant: NAT RES DEV

Inventor： MOZLEY R

IPC: A01G31/00 ,  B03B5/08 ,  D04H1/64 ,  D04H1/655 ,  D06M15/41 ,  B03B3/00

CPC classification number: D04H1/655 ,  A01G31/001 ,  A01G2031/005 ,  B03B5/08 ,  D04H1/64 ,  D06M15/41

Abstract: Apparatus for the treatment of ores and other solid materials containing fractions of different density comprises a conveyor surface for conveying a suspension of the material upwardly against a downward flow of wash liquid, and shaking means for imparting a shaking motion to the surface to facilitate separation of the fractions contained in the material. In different embodiments, the apparatus comprises (a) washing means for supplying wash liquid to the surface in a dropwise fashion from above the surface at a series of positions spaced across the surface transversely to the direction in which the material is conveyed by the surface, (b) means for feeding the material on to the surface along each of those two sides thereof which are disposed in the general direction in which the material is conveyed by the surface (c) means for imparting a first orbital shaking motion to the surface to facilitate the initial separation of the fractions contained in the material and means for imparting a second orbital shaking motion to the surface of higher amplitude and/or lower frequency than the first to facilitate discharge of the lighter fractions from the surface.