Patent ID: 7357824
Filing Date: 2008-04-15
Classification: B01D,B04C,B66C,F27D

Abstract:
1. A hoist assembly for in-situ extraction of a stacked of array abrasion resistant liners from the conical housing of a cyclone, said hoist assembly comprising: a) a frame means for insertion into the stacked array of liners and the apex cone in the conical housing of the cyclone; b) a clamping means carried in said frame means and operable to exert a clamping force on the stacked array of liners and the apex cone to hold them in alignment and attach them to said frame means; and c) said frame means being movable to extract the stacked array of liners and the apex cone from the conical housing of the cyclone when said frame means has been inserted into the stacked array of liners and the apex cone and operated to exert a clamping force thereon.