 Rock-San
Gravel Company
Aggregate Plant
Lodi, California
For Rock-San Gravel Company's Lodi, California Aggregate Plant,
Roberts & Schaefer provided detailed engineering services,
procurement assistance, and field engineering services. The 800
TPH aggregate and sand plant includes a placer gold recovery circuit
to remove the goal values from the fine material. A complete crushing,
screening, and conveying facility produces a variety of aggregates
and sand for the concrete market and decorative rock for the landscaping
market.
Pit-run material is delivered to a receiving station and from
there to a scrubbing station. Scrubbed material discharges onto
dewatering screens, separating 4 inch X 1.5 inch, 1.5 inch X 3/16
inch and the minus 3/16 inch fractions. The minus fraction moves
to the sand plant, while the other fractions move to separate
plant surge piles.
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