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Job Description:

  • 1) 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.

  • 2) Sets hearth rheostats and heat controller to specified temperature, and turns valves to adjust rate of flow of steam and oil to burners.

  • 3) Starts system of conveyors, grinder, roaster, mixer equipment, cooling and exhaust fans, and burners.

  • 4) Moves levers to regulate flow of materials, and adjusts valve to control volume of liquor.

  • 5) Turns valve to drain spent liquor and lime hydrate to causticizer tanks.

  • 6) Makes titration test, records results, and sends samples to laboratory.

  • 7) Observes gauges, indicators, thermometers, and controls to ensure conformity to specifications.




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End Of Job Description for: "CRYOLITE-RECOVERY OPERATOR"
DOT:   511.482-014

Job Number: 2547