ROTARY KILN NOSE RING CALIFORNIA PORTLAND
In FIG. 1, cement clinker is shown slowly traveling at 10 toward the discharge end 11a of a rotary kiln 11, from which it spills at 10a toward a traveling grate not shown. One such grate is described in U.S. Pat. No. 3,091,442 to John Romig and Joseph H. Herz.