Abstract:

Taking fused silica、M45 synthetic mullite and Synthetic cordierite as main raw materials and pure CAC as binder, a kind of large lining bricks for coke oven door with height of 580~1 300mm, width of 430~610mm, thickness of 350~435mm, and unit weight of 250~420kg is developed in the process of vibration cast molding, curing, drying, baking and high temperature sintering. This kind of brick has better performance in all aspects than the currently prevailing sintered mullite-cordierite lining bricks by mechanical pressing, which has been proved by applying it in 7.63m and 6m coke oven batteries.