Maintenance of high heat exchange transfer rates and improved alkali desublimation conditions in portland cement production

摘要

The present method of Portland cement production provides for mixing with a fluidized raw mix stream to be heat exchanged, and an alkali-containing gas stream to be desublimed, appropriate quantities of granular fluidized solids, preferably in the 4 to 20 standard mesh size, the added solids acting as scouring agents to maintain clean, deposit-free heat transfer surfaces, and an unobstructed desublimation chamber.