Recovery Operator Job Description:

Controls evaporators, furnaces, and dissolving tanks to recover sodium compounds from chemicals spent in paper manufacturing processes: Patrols area around recovery units, observing recording devices and indicators on panelboards, flow of chemicals through units, and color of flame in furnaces to detect variations in pressure and temperature of evaporators, determine solid content of evaporated liquor, and detect incomplete burning of liquor in furnace. Turns rheostats to regulate pressure and temperature of evaporators, temperature and rate that liquor is sprayed into furnaces, and rate that molten sodium compounds are transferred from furnace to dissolving tanks. Tests solution at various stages of processing for specific gravity and titration, using testing devices. Adjusts and resets control instrument proportional bands on control board. Records meter readings at specified intervals on progress chart.