High alumina brick is a kind of neutral refractory material. It mainly determines the grade of the product based on the level of aluminum content.
When the high alumina brick of the pellet shaft kiln are built, the are matched with high-alumina refractories of the same material, and the fire mud in the ash joints should be full, and the brick joints of the upper and lower layers should be staggered.
When preparing fire clay for laying high alumina brick, be sure to add clean water. Hydraulic and air-hardening slurries that have already been prepared shall not be added
The refractory mud that has been initially set shall not be used continuously.
If phosphate-bound mud is used, the specified trapping time should be ensured, and the prepared mud should not be arbitrarily diluted with water. Phosphate-bound slurries are corrosive and cannot come into direct contact with metal casings.
