B&W's recovery furnace is designed to minimize the maintenance required over the life of the furnace with improved safety as our number one goal.
Through our research centers, we have invested considerable resources to understand and improve lower furnace protection.
Enhancements include:
- proper selection of lower furnace protection specific to the boiler requirements and desires of the mill
- inserted smelt spouts for reduced smelt opening maintenance and for achieving high velocity fluid flow to resist overheating during smelt flow upsets
- increased number of closely spaced floor support beams to minimize overall structural damage in the event of an explosion
- welded attachments designed to minimize tube stresses and reduce the potential for waterside stress-assisted corrosion in the event of water chemistry upsets
- minimized use of refractory for sealing purposes to reduce annual refractory maintenance costs
- fully welded furnace wall and corner construction for a smelt-, gas- and water-tight enclosure
- choice of a sloping, decanting or partially decanting floor
- multi-lead ribbed (MLR) tubes designed to enhance floor circulation and minimize the risk of steam blanketing during high transient conditions
- overall furnace construction designed to minimize the use of tube-to-tube butt welds and pressure part welding
For more information, please contact us.
