Regulating powder drying process in carbon dust ventilator mill for steam generator involves including hot gas or gas/cooling medium mixture temperature before/after mill in process control

摘要

The method involves sucking hot gas (flue gas) out of the steam generator's combustion chamber through the ventilator mill (1) to dry and deliver the ground material and add a temperature control medium to the hot gas. The temperature of the hot gas or the mixture is measured (12,13) before and after the mill and included in the process regulation and/or control (14). An Independent claim is also included for an arrangement for implementing the method.