Cement making plant - comprising rotary kiln with cyclones, connected in series, the final two having extra cyclone connected to their joining duct

摘要

Cement making plant comprising a rotary kiln and a preheater has a series of cyclones joined together and to the kiln by ducts so that the smoke leaving the kiln passes successively through the cyclones giving heat exchange in countercurrent. The novelty is that an extra cyclone is provided, the entry to which is connected to the duct joining the last and penultimate cyclones of the preheater. The exit is connected to the entry to the heating fluid circuit heating a boiler. The extra cyclone is arranged above the last-but-one cyclone. The arrangement permits the supply of all the necessary drying heat in every case, while maintaining constant the flow of smoke in the cyclones of the preheater and in the extra cyclone.