A professional who operates rotary kiln, ball mill and conveying equipment to recover soluble soda and alumina from waste materials. Respnsibilities include:

• Moves lever and switch controls to start and regulate rotation speed of kiln.
• Moves controls to maintain specified temperatures throughout kiln and feed rate of kiln.
• Catches samples of slurry clinker from kiln, and observes discharge of slurry at sample points to ensure specified burning.
• Moves controls of cooling air fan, cooler exhaust fan, and air dampers to adjust temperature of grate cooler and airflows to burners.
• Moves controls and adjusts feed valves to start conveyor and bucket elevator system and to transport calcined clinker, bauxite, and soda ash into ball mill.
• Regulates valves and pumps to transfer slurry from ball mill into digestion tanks and to supply water to kiln trunnions and water-cooled bearings.
• Keeps operating log.
• Replaces charts in automatic recording devices.