Shaft furnace for heat treatment of finely dispersed materials

摘要

PCT No. PCT/SU80/00185 Sec. 371 Date Jul. 16, 1982 Sec. 102(e) Date Jul. 16, 1982 PCT Filed Nov. 28, 1980 PCT Pub. No. WO82/01936 PCT Pub. Date Jun. 10, 1982.A shaft furnace for heat treatment of finely dispersed material has a casing of rectangular cross section with a hopper built into a cover thereof. The top of the casing accommodates pipes for drawing off resultant gases. The casing also houses two groups of plates equidistant from the vertical axis of the casing and having different lengths increasing in the direction from the vertical axis toward a narrow wall of the casing so as to form therebetween and the narrow wall of the casing passages for the flow of gases toward the pipes for exhausting resultant gases.