Heat treatment of coal

Details Heat treatment of coal Heat treatment of coal

H - Electricity

05

B

202/10, 202/4

H05B 6/78 (2006.01) C10B 57/10 (2006.01) C10L 9/00 (2006.01) C10L 9/08 (2006.01)

Patent

CA 1135652

ABSTRACT OF THE DISCLOSURE The invention relates to heat treatment of coal before coking or gasification, especially the drying or preheating of milled coal, using microwave radiation preferably in the range 20 to 3,000 MHz. The invention extends to a device for carrying out such a process. A suitable device comprises a storage bunker, means defining at least one treatment zone, means for generating microwaves in the treatment zone, and a conveyor for transport- ing the coal from the storage bunker to an oven via the treatment zone. The invention also extends to a feed chute or a coal bunker equipped with elect- rodes to produce microwaves which can be used as a treatment zone.

323980

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