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This is a functional refractory material specifically designed for the rapid, hot-state repair of iron tapping channels in blast furnaces. It strikes an excellent balance between construction efficiency—particularly its ability to eliminate the need for removing old linings and enabling hot repairs—and the durability of the repaired area, showcasing outstanding resistance to erosion and scouring. As a result, it effectively extends the overall lifespan of the iron channel, playing a critical role in ensuring stable furnace operations and boosting production efficiency. Key raw materials include corundum, bauxite, silicon carbide, carbon-based materials, and pure calcium aluminate cement, among others.
Used for repairing or constructing blast furnace linings, this spray-applied, unshaped refractory material boasts high adhesion, minimal rebound, excellent dimensional stability and strength, as well as superior resistance to chemical erosion and thermal shock. It offers significant advantages in terms of construction efficiency—particularly for rapid repairs and intricate shape applications—and provides long-lasting protection for furnace linings. As a result, it plays a critical role in ensuring the extended lifespan, high efficiency, and safe operation of blast furnaces.
Spray Coating for Hot Blast Stoves
Hot Blast Stove Spray Coating: Designed for application on the arch roof, heat storage chambers, combustion zones, and other critical areas of hot blast stoves, this spray coating forms an insulating or erosion-resistant layer. It is specifically engineered to withstand the harsh conditions of high-temperature flue gas exposure (1200–1350°C) as well as thermal shock cycles, offering excellent thermal insulation, superior thermal shock resistance, and outstanding structural stability. Applications include insulating spray coatings for hot blast stove arch roofs, wear-resistant protective layers on the surface of regenerative checker bricks in heat storage chambers, and erosion-resistant repairs for combustion chamber linings—enhancing overall thermal efficiency while significantly extending the service life of the equipment.
Coke oven spray coating is an unshaped refractory material used for repairing coke oven structures (such as furnace walls, furnace roofs, and regenerative chambers). Applied via a spraying process, it forms a protective layer over damaged areas, effectively addressing high-temperature gas erosion, mechanical wear, and thermal shock damage. This coating boasts excellent adhesion, superior thermal shock resistance, and strong anti-slagging performance. It’s ideal for repairing worn-out coke oven walls, protecting the surfaces of regenerative chamber checker bricks, and providing insulating coatings on furnace roof sealing walls—ultimately extending the service life of the coke oven while minimizing heat loss and preventing gas leakage.
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