Concentrator Operator
Overall rating: (N/A)
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Controls machines and equipment from instrumented control
board to scrub, condition, float, classify, and cnovey phosphate
rock for use in fertilizer and phosphoric acid: Monitors
recording instruments, gauges, panel lights, and other
indicators, and listens for warning signal to verify conformance
to plant standards. Turns screws and knobs on control board to
adjust flow of reagents, airflow, phosphate-rock feed rate, and
conveyor betls.
Observes flotation tanks to determine amount of
sand clinging to rock, cyclones to detect presnece of solids,
and classifiers to detect wobble in or uneven feed rate of
screw.
Reports belt weight, amount and evenness of feed rate,
waterflow amount, and specific density of slurry to mine, using
telephone. Weighs samples from scrubber and conditioner to
dteermine that amount of reagents in tank meets specifications.
Reviwes laboratory test results and makes adjustments required
on control board. Inspects machines and equipment for potential
and actual hazards, wear, leaks, and mechanical malfunctions
requiring maintenance. Collects samples at various stage of
operation for laboratory anaylsis. Records instrument readings,
process conditions, and other operating data in shift log.
Manually regulates or shuts down equipment as driected by
supervisor. May tag samples collected for laboratory analysis.
May assist in making mecahnical repairs to machines and
equipment during shutdown.
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Concentrator Operator
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