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The high alumina series wear-resistant brick adopts high-quality bauxite clinker and brown corundum aggregate, and various admixtures, micro powder and ultra micro powder are added into the material, which improves the forming performance of the material, resulting in the close combination of large, medium and small particles, and the micropore is fully filled. The porosity of the product is greatly reduced and the bulk density is increased. After the product is fired by machine pressure or vibration molding, the compressive strength, wear resistance and erosion resistance are significantly improved, which can be widely used in the severely worn parts of circulating fluidized bed boiler.