CLINKER ROASTING LINE Russian patent published in 2003 - IPC

FIELD: metallurgy. SUBSTANCE: clinker roasting line has rotary furnace, clinker air cooling device positioned behind rotary furnace and equipped with cooling air supplying pipe and at least one pipe for discharging heated air from cooler and supplying it to rotary furnace. Said line is further provided with powder raw material preheater formed by vertical mutually connected cyclones, to which shaft heat-exchanger may be connected. Clinker heater has at least one outlet adjoining through connecting pipeline to at least one connecting pipeline of middle part of vertical heater. When construction of line is divided into high-temperature part and low-temperature part, said line has clinker cooler equipped with at least two hot air outlets, with one of outlets adjoining to connecting pipeline in the middle portion of low-temperature part. EFFECT: increased efficiency and reduced consumption of power for roasting process. 8 cl, 2 dwg