Method and apparatus for drying and preheating coking coal...

Details Method and apparatus for drying and preheating coking coal... Method and apparatus for drying and preheating coking coal...

F - Mech Eng,Light,Heat,Weapons

26

B

34/10

F26B 3/08 (2006.01) C10B 57/10 (2006.01) F26B 3/10 (2006.01) F26B 17/00 (2006.01) F26B 17/10 (2006.01)

Patent

CA 1144748

ABSTRACT OF THE DISCLOSURE A method and an apparatus are disclosed for drying and preheating coking coal particles of mixed sizes in a flight stream tube. A stream of hot gas in which different-size parti- cle fractions are entrained, is advanced through the tube. At one or more locations it is split up into two flows, one contain- ing the smaller fractions and the other containing the coarser fractions. The coarser fractions are slowed and readmitted into the flow having the smaller fractions, counter to the direction of advancement of this flow. -1-

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