Coke calcining apparatus

Details Coke calcining apparatus Coke calcining apparatus

C - Chemistry, Metallurgy

10

B

202/31

C10B 1/10 (2006.01) C10L 9/08 (2006.01) F27B 7/02 (2006.01) F27B 7/38 (2006.01)

Patent

CA 1202272

ABSTRACT OF THE DISCLOSURE A coke calcining apparatus comprises a rotary kiln (1), an intermediate cooler (3) installed outside of but rotating unitarily with the kiln at an inter- mediate part thereof and having inlets (32) and outlets (33) respectively communicating with the upstream and downstream interiors (A,B) of the kiln, and an annular weir (7) fixed to and around the inner wall surface of the kiln at a part thereof between the inlets and outlets of the cooler and functioning to cause the entire quantity of coke (6) which has been subjected to a first-stage calcination at 600 to 1,000°C in the upstream interior (A) to flow through the cooler (3). The coke thus cooled to 200°C or lower is subjected to a second-stage calcina- tion at 1,200 to 1,400°C in the downstream interior (B) for 10 to 30 minutes.

418866

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