A professional who controls calciners and allied equipment from instrumented panelboard to heat ore slurry, dry slurry, and drive off impurities. Respnsibilities include:

• Monitors recording instruments, flowmeters, panel lights, and other indicators, and listens for warning signals on panel to operate calciner, conveyor system, and allied equipment.
• Turns screws and knobs on panelboard to control feed rate, temperature, and conveying of ore.
• Examines calcined ore to determine, by color, that it meets company specifications.
• Confers with other departments to adjust steam, water, and fuel supply, using telephone or radio.
• Confers with supervisor to report equipment failure or malfunction, and to resolve problems in process changes.
• Maintains record of steam, water, and fuel used during shift.
• Records process changes, malfunctions, and other actions in shift log and operator's sheet.
• Examines calciners and allied equipment, such as conveyor belts and chutes, blowers, pumps, compressors, and power lines, waterlines, and air lines, for wear or defects.
• Periodically cleans calciner, working as member of team, and using airhammer, water hose, pick, shovel, and wheelbarrow.
• When drying copper ore, may be designated Reactor Operator.