Blast furnace pulverized coal injection drying apparatus

Details Blast furnace pulverized coal injection drying apparatus Blast furnace pulverized coal injection drying apparatus

C - Chemistry, Metallurgy

21

B

C21B 5/00 (2006.01) F26B 17/10 (2006.01)

Patent

CA 2047416

ABSTRACT OF DISCLOSURE The present invention relates to a blast furnace pulverized coal injection drying apparatus, comprising a hot gas generating furnace and a ground drying mill into which the gas generated in the hot gas generating furnace is introduced to grind and dry wet coal, wherein a branch pipe is placed on the exhaust gas pipe of the ground drying mill and is linked with the branch pipe with a dehumidifying apparatus, and the outlet pipe of the dehumidifying apparatus is connected with the outlet side of the hot gas generating furnace, whereby a high operational cost due to conventional use of nitrogen gas is reduced.

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