Customer case:

Lime kiln camera helps Stora Enso Oulu Mill to see the flame

Mar 14, 2022

A new lime kiln rebuild, part of a recent extensive paper machine grade conversion at the Stora Enso Oulu Mill in Finland, included a Valmet Visible Thermal Imaging System. Consisting of a rugged, high-definition camera paired with a high-resolution thermal sensor, the system enables operators to continuously monitor flame shape and size as well as kiln temperatures during startup and operation of the kiln.

Lime kiln camera in Stora Enso Oulu Mill
“The biggest advantage with the camera system is in seeing the lime dust especially when restarting from an unplanned shutdown. Then there can be a lot of dust which confuses the flame detection system. With the Valmet system we can really see what the problem is and that is a really big plus.”
Kai Jalander, Production Engineer

Summary

Location Oulu, Finland
Challenge To get better visibility to the kiln to see the quality of the flame and monitor temperatures in real-time.
Solution Valmet Visible Thermal Imaging System consists of a rugged, high-definition camera paired with a high-resolution thermal sensor. The system enables operators to continuously monitor flame shape and size as well as kiln temperatures during startup and operation of the kiln. 
Results
  • Comprehensive observation and analysis with high dynamic range imaging
  • Real-time monitoring of the kiln with possibility to to see lime dust
  • Easier problem solving
Keywords Lime kiln camera, Automation, Finland