D - Textiles – Paper – 21 – C
Patent
D - Textiles, Paper
21
C
110/2, 39/36, 9/
D21C 11/00 (2006.01) F23G 5/28 (2006.01) F27B 9/02 (2006.01)
Patent
CA 1104763
ABSTRACT The invention is directed to method and apparatus for treat- ing waste material containing alkali metal in a counter-flow furnace wherein the waste material to be processed is introduced at one end thereof and the processed material is discharged from the other end, while simultaneously air is introduced and the gases of combustion are caused to flow in a counter-current di- ection with respect to the material being processed and are ex- hausted at the first end of the furnace, and wherein the furnace has a natural tendency to form zones of processing including sequentially from the first end of the furnace, a drying zone, a charring and volatile burning zone, and a fixed carbon burning zone, and wherein a maximum temperature is maintained in the furnace below about 1400°F. directly adjacent the surface of the bed of material being processed.
282752
Goudreau Gage & Associates
Nichols Engineering And Research Corporation
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