In the Pulp & Paper industry, particularly in recovery boilers, refractories must withstand a challenging environment characterized by chemical attack from molten smelt (sodium carbonate and sulfate), corrosive gases, thermal cycling, and abrasion from ash and sootblowers. The integrity of the refractory lining is critical for the safe and efficient operation of these boilers, which are essential for chemical recovery and energy generation.
Refractory IntegraSmart provides specialized refractory solutions for critical areas within recovery boilers, such as the lower furnace walls, smelt spout openings, and burner zones. We advise on the selection of materials with high resistance to chemical corrosion and thermal shock, such as chrome-free high-alumina plastics and phosphate-bonded castables. Our services include lining design optimization to resist smelt penetration, supervision of repair and installation techniques, and failure analysis to extend campaign life. By ensuring robust refractory performance, we help pulp and paper mills enhance boiler reliability, reduce maintenance shutdowns, and improve chemical recovery efficiency.
