COMPUTER-CONTROLLED SPRAY-DRYING PROCESS

摘要

In an automated spray-drying process the moisture content of the powder obtained is automatically maintained at a pre-set level by measuring its actual value and feeding it to a computer which at least controls the flow of drying air and/or the temperature thereof as a function of past values of said flow and/or temperature, and as a function of current and past values of the moisture content. Preferably, the flow of drying air and/or the temperature thereof is also regulated as a function of current and past values of the slurry flow rate. The process is especially suitable for the manufacture of detergent powders or components thereof.