FURNACE HEAT EXCHANGER Russian patent published in 1998 - IPC

FIELD: heat exchangers of rotary furnaces; manufacture of building materials and other industries. SUBSTANCE: heat exchanger includes hollow closed elements freely mounted on brackets fitted with axles. Section of each element has form of equilateral triangle having side "a" at length of , where α is angle of repose of material. Axles of brackets are located radially from inner surface of furnace at distance sufficient for forming gap between lower edge and inner surface of furnace at horizontal position of bracket. EFFECT: saving of fuel and raw material. 2 dwg