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Title: Centrifugal Blasting Apparatus
Author: R.G.Barrier;K.H.Nguyen;J.T.Pokorski;M.D.Shorrock
Source: US Patent 6,126,516
Publication year 2000
Document number: 2000012
Number of pages: 10
Abstract:
A centrifugal blasting apparatus is configured to deliver friable media without destroying a large percentage of the delivered media. The centrifugal blasting apparatus
includes a compressed air feed system that intermixes and fluidizes blast media with compressed air and delivers the fluidized blast media to a blast wheel. The control cage
is formed with rounded interior surfaces to avoid sharp transitions that may otherwise fracture the media. The blades are curved to maximize accelleration of the blast media
with the lowest possible rotational rate. The first edges of the blades, adjacent the axis of rotation, are configured to receive the blast media. Specifically, the first
edges are rounded to minimize the amount of blast media that is broken by using a sharp leading edge. The channels on the blades themselves are also polished to minimize the
amount of blast media that is broken while traveling along the surface of the blades.
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