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       CODE: 511.482-014 Buy the DOT:Download/CD-ROM
TITLE(s): CRYOLITE-RECOVERY OPERATOR (smelt. & refin.)
Operates machines to recover cryolite from scrap potlining: Sets mill gauge to specified feed rate
and adjusts air volume, according to screen analysis from laboratory. Sets hearth rheostats and heat
controller to specified temperature, and turns valves to adjust rate of flow of steam and oil to
burners. Starts system of conveyors, grinder, roaster, mixer equipment, cooling and exhaust fans,
and burners. Moves levers to regulate flow of materials, and adjusts valve to control volume of
liquor. Turns valve to drain spent liquor and lime hydrate to causticizer tanks. Makes
titration test, records results, and sends samples to laboratory. Observes gauges, indicators,
thermometers, and controls to ensure conformity to specifications.
GOE: 06.02.10 STRENGTH: L GED: R3 M2 L2 SVP: 5 DLU: 77
ONET CROSSWALK: 92962 Separating, Filtering, Clarifying, Precipitating, and Still Machine Operators and Tenders
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