As is well known, wear-resistant alumina lining bricks, as the lining of ball mills, have the characteristics of high hardness, high density, low wear, high regularity, and corrosion resistance. They are widely used in industries such as ceramics, cement, paint, pigments, chemicals, pharmaceuticals, coatings, and inorganic mineral powder processing. So how are wear-resistant alumina lining bricks produced from ores?
After the ore containing alumina is mined, it is first roughly processed into industrial alumina (γ - AL2O3), with an alumina content of about 65%. Then it is further processed into alumina powder (α - AL2O3), with an alumina content of 99.5%, which can be purchased by various ceramic companies as raw materials for fine ceramics.
After entering the factory, alumina powder is usually first ground to ensure that the fineness of the alumina powder meets the production requirements. A small amount of binder, coarse particles, and fine powder are proportioned to form the billet, which is placed in a metal mold and pressed on a press to form the billet.
Put the formed wear-resistant alumina lining bricks into the kiln car and send them into the high-temperature tunnel kiln. After high-temperature calcination at around 1700 ℃, the finished lining bricks are considered complete. Afterwards, the workshop master will screen, polish, and pack them again. According to the needs of different customers, they will be loaded and shipped to various places to play the role of wear-resistant lining bricks!
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