Aggregates Manager

February 2014

Aggregates Manager Digital Magazine

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In the '90s, CalPortland purchased a used Marion dragline with a 16-yard bucket. The dragline allowed the plant to complete much of the mining that couldn't be accomplished with other mining equipment. to the shore. Then he lifts it out of the water and dumps the material into a spoil pile. A front-end loader scoops up the material from the pile and loads it into the haul trucks, which carry it to a belt feeder. The belt feeder feeds the material onto a 48-inch-wide, 4,500-foot-long overland conveyor, where it dumps the material on- to another 1,200-foot-long conveyor, and then another 2,200-foot-long conveyor. The conveyor system eventually carries the material to a portable processing plant that has been set up in a permanent location. The processing plant has a 6 x16 vibratory screen and a jaw crusher. Larger material is sized through the screen and moved to a stockpile area. There, it is either stockpiled or sent on to a tunnel where it goes up a series of conveyors to a screening tower. The screening tower has two screens — a 7x20 JCI and a 7x20 Telsmith. At this point, concrete aggregate is pulled out, and sand is filtered through a sump at the bottom of the tower and pumped through a tunnel that goes underneath all of the stockpiles. The sand is pumped through an HDPE sand line that runs out to an underground sand classifier system. At the classifier, the concrete sand can be blended with other products. The Pressed for Water? Pressed for Space? AZFAB's No more sludge P late & Frame P ress is the Answer! Reclaim water Come See Us at Booth #52728 30 AGGREGATES MANAGER February 2014 Reclaim waste back to the land March 4-8, 2014 Las Vegas, USA 866.616.9351

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