Regular, professional removal of ash, soot and slag deposits increases boiler life and thermal efficiency and prevents unplanned shutdowns.
Ash, soot and slag deposits on boiler surfaces reduce heat transfer, raise flue gas temperature and accelerate corrosion. Brocken cleans boiler interiors, superheater and economiser bundles, hoppers and ash discharge lines in coal, biomass and waste-to-energy plants quickly during planned outages.
Methods
- High-pressure water jetting of bundles and walls
- Mechanical scraping and ash removal with industrial vacuum units
- Dry ice blasting in sensitive areas
- Bang & Clean explosive cleaning (online / offline)
Benefits
- Higher thermal efficiency, lower fuel consumption
- Shorter outages, plannable maintenance
- Safe execution under confined-space and work-at-height procedures
Frequently asked questions
It depends on the fuel and operating hours; coal and biomass boilers are usually cleaned during the annual planned outage, more often under heavy fouling. A rise in flue gas temperature signals that cleaning is due.
Mechanical and water-jet cleaning require the boiler to be cooled down and secured. With online methods such as Bang & Clean, some applications can be carried out during operation.