In many cases the length of a mill outage is set by the time needed for recovery boiler cooling, washing, inspections and repairs.
The ways cooling and washing are carried out can be optimized so that the total outage time can be reduced. The reductions in the total outage time can be obtained by:
The experience gained so far indicates that when these actions are carefully planned and systematically executed, significant time savings can be achieved. Usually this does not happen overnight, but instead over a period of a couple of years, as the outage practices and procedures are modified step by step to gradually optimize the outcome.
The information above was excerpted from a paper presented by Valmet personnel at the PEERS 2017 conference and is available as a white paper available HERE.
For more information about improving your recovery boiler cooling and washing practices, contact your Valmet representative.