C - Chemistry – Metallurgy – 10 – G
Patent
C - Chemistry, Metallurgy
10
G
196/5.8
C10G 1/06 (2006.01) F28D 7/08 (2006.01)
Patent
CA 1169000
PATENT APPLICATION PAPERS OF ROBERT M. THOROGOOD FOR: CONVECTIVE HEATER ABSTRACT OF THE DISCLOSURE A convective heater for heating fluids such as a coal slurry is constructed of a tube circuit arrangement which obtains an optimum temperature distribution to give a relatively constant slurry film temperature. The heater is constructed to divide the heating gas flow into two equal paths and the tube circuit for the slurry is arranged to provide a mixed flow configuration whereby the slurry passes through the two heating gas paths in successive co-current, counter-current and co-current flow relative to the heating gas flow. This arrangement permits the utilization of minimum surface area for a given maximum film temperature of the slurry consistent with the preven- tion of coke formation. 500-P-USC0005
396940
International Coal Refining Company (a Partnership)
Mcfadden Fincham
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