Patent ID: 6257415
Filing Date: 2001-07-10
Classification: B02C,B04C,F23K

Abstract:
For use in a classifier of the type having a plurality of coal discharge pipe inlets at its upper end, the upper end of the classifier including a classifier skirt defining a swirling annular volume of classified coal fines suitable for discharge through the pipe inlets for combustion, an apparatus for providing uniformly distributed coal fines to the inlets, comprising:a plurality of diffuser elements located in the swirling annular volume of the skirt placed in the upper end of the classifier where coal fines exit the classifier into the inlets to disrupt concentrations of coal flow into a diffuse, evenly distributed pattern relative to the inlets, the diffuser elements comprising elongated rows of teeth mounted vertically relative to the classifier with the teeth extending radially partway into the swirling annular volume.