Loading patent…
AssigneeAtlantic Richfield Company
InventorsRalph Gerstenkorn, Dale D. Erickson, Heyward G. Christmas, Ronald E. Kelley, Charles A. Taul
Estimating the term…
Apparatus for cooling granular material such as petroleum coke comprises an elongated drum characterized by a generally cylindrical shell wall having spaced apart circular segment pockets extending radially inwardly from the shell wall toward the central axis of the drum to provide extended heat transfer surfaces and flow spaces for cooling water. The cooling pockets are welded to the shell wall along the edges of opposed sidewalls of the pocket or conduit members themselves. The somewhat flexible drum shell resulting from the aforedescribed construction is strengthened and held substantially rigid for rotation about its central axis by a plurality of circumferentially spaced tension rods which extend from one end of the drum to the other and are engagable with a support plate. A plurality of coil springs are circumferentially spaced about the support plate and are compressed between the support plate and a flange of the drum to uniformly distribute compressive loads on the drum to minimize cyclical bending stresses on the drum during rotation thereof.
A coke cooling apparatus comprising an elongated generally cylindrical drum disposed in a housing having a lower portion including means forming a trough adapted to be at least partially filled with a cooling liquid, means for supporting said drum for rotation in said housing about a generally horizontal longitudinal central axis of said drum, said drum including an outer circumferential shell wall and opposed head members including respective end wall means of said drum and forming a substantially enclosed space for receiving and discharging a quantity of granular coke material to be cooled,
Dependencies are inferred from the claim text.