25-year old infrasound cleaner keeping it clean at Mondi in Kramfors, Sweden

During the past week, service was performed on a infrasound cleaner installed in late 1986, at Mondi Paper Mill in Kramfors, Sweden. Ever since, the infrasound cleaner has been running and generating Infrasound into the process, creating value for the client by increasing the efficiency of the process, reduce manual labor and work hazards. For this particular application, the power of infrasound cleaning is used to continuously clean a downstream-fintubed economizer, with three tube bundles. The boiler combust bark and is used to supply the production process with saturated steam. Since commissioning in 1986, the infrasound cleaner has operated above the expectations and shortly after the commissioning, the client decided to completely remove the shot cleaning system on the ECO.