Patent ID: 8372185
Filing Date: 2013-02-12
Classification: B03B,C10J,C10L,F23K,F26B,Y02P

Abstract:
1. An open air apparatus for segregating particulate material by density and/or size to concentrate a contaminant for separation from the particulate material feed stream, comprising: (a) a fluidizing bed having a receiving inlet for receiving the particulate material feed, an inlet opening for receiving a fluidizing stream, a first discharge outlet for discharging a fluidized particulate material product stream, and a second discharge outlet for discharging a non-fluidized particulate material stream; (b) a source of fluidizing stream at a temperature of about 300° F. or less operatively connected to the inlet opening for introducing the fluidizing stream into the fluidizing bed to achieve separation of the fluidized particulate material product stream from the non-fluidized particulate material stream; (c) a conveyor means located within the fluidized bed for transporting the non-fluidized particulate material from inside the fluidized bed to the outside of the fluidized bed through the second discharge outlet; and (d) wherein the fluidized particulate material product stream contains a reduction in the contaminant relative to the particulate material feed stream, and the non-fluidized particulate material stream contains an increase in the contaminant relative to the particulate material feed stream.