Safe and efficient operation control of the recovery boiler
Feb 23, 2023
A North American mill looking to monitor bed height and shape, and bed temperatures, installed a Valmet Furnace Imaging System, IR, to better monitor its recovery boiler and control the SO2 levels. A service agreement together with the analyzer helps the mill experience little to no downtime with the servicing of its camera.
“Our IR boiler cameras are used to monitor the recovery boiler char bed height, shape, and temperature profile from opposite corners of the boiler furnace. These parameters are critical to safe operation of a recovery boiler and to an efficient reduction reaction for the smelt inside of the recovery boiler. Without these cameras, safe and efficient reaction control of the operation of the recovery boiler becomes increasingly difficult. Daily adjustments are made based on the picture that these cameras give us of what is truly happening inside of the boiler. Our bed cameras are maintained under a contract service agreement with Valmet. We have seen little to no downtime on the cameras under this contract. Service visits are always well communicated and executed. We couldn’t be happier with our service contract and bed camera performance.”
Mill’s Process Controls Engineer
Summary
Location
North America
Customer challenge
Mill did not have a working camera for monitoring bed height and shape, and neither a way to monitor bed temperatures
Control of SO2 is challenging without temperature readings.
Recovery boilers need to have a working camera monitoring the smelt bed to satisfy insurance requirements.
