Aluminum hydroxide is a base, and was due a certain acidic, so can be called aluminate acid monohydrate. Aluminum hydroxide special tray dryer wet material from the feeder is continuously applied to the upper portion of the first layer is dried on the dryer disc harrow rake arm with a leaf rake arm rotary movement so that makes rotary movement continuously rake leaves turn copy material. 
First,Project Overview:
        aluminum hydroxide (Aluminium hydroxide), the chemical formula Al (OH) 3, aluminum hydroxide. Since significant and certain acidic, it can be called a hydrated aluminum metaphosphate (HAlO2 · H2O), but the actual base to form an aqueous solution is reacted with a co-tetrahydroxy-aluminate Al (OH) 4-. Divided by use of industrial-grade and pharmaceutical grade two kinds. 
Second, special aluminum hydroxide disc dryer works:
        aluminum hydroxide special tray dryer wet material from the feeder is continuously applied to the upper portion of the first layer of drying plate dryer, rake arm with a rake leaves for rotation movement made rake arm rotary movement so continuously rake leaves turn copied material. Index material along the spiral flow through the disk surface drying, the material was dried in a small disk is transferred to the outer edge, and falls below the outer edge of the large drying plate at the outer edge, on a big plate material moved inward and drop from the middle spout off as one small drying pan. Size drying plates are arranged alternately, the material can be continuous through the whole dryer. Heating medium through the hollow of the dry plate, heating medium in the form of saturated steam, hot water or thermal oil heating medium enters from one end of the dry plate exported from the other end. Dried materials fell on the bottom of the housing from the last layer of drying plate, the last being transferred to rake leaves out of the discharge port. The moisture escaping from the material discharged from the humidity on the top cover of the mouth, a vacuum-type plate dryer moisture is discharged by the vacuum pump on the top cover of the mouth. Discharged from the bottom of the dry materials can be packed directly. By finned heater with addition, solvent recovery condensers, baghouse, dry material backmixing agencies, induced draft fan and other auxiliary equipment, can increase its drying capacity, dried paste and heat sensitive materials can be easily recycled The solvent and capable of heat decomposition and reaction.