The tank calcining furnace at Aluminum Carbon Co., Ltd., which had been operational for four years, suffered erosion from the complex atmosphere of raw materials and continuous high temperatures in localized fire channels, compounded by defects in refractory materials. This erosion caused the tank wall and fire channel walls to burn and deform. Consequently, trumpet-shaped melting holes, approximately 400 mm in length, 200 mm in width, and 80 mm in depth, formed on both sides of the tank body's fire channel walls. This led to severe cross-firing issues in the fire channel walls, allowing petroleum coke to leak into the fire channel and compromising the kiln's air tightness, thereby severely affecting normal production.

All these issues were successfully resolved using our company's ceramic welding repair technology.