Sand Processing and Recovery Systems
Process Engineers designs custom recovery systems and we specialize in slurry and water pumping systems. Typical applications include pumping tailings with a GIW slurry pump through FLSmidth hydrocyclones, both of which are sized to each specific application (flow rate, TPH, desired recovery). Recovered sand can be further dewatered using a high frequency screen with a urethane deck.
CYCLONES – Process Engineers provides cyclones manufactured by FLSmidth which come complete with metal housings, rubber liners, cyclo-stack sand dewatering boot and siphon control. The recovered sand is generally blended back into the sand product. The fines overflow is typically fed to a high capacity water clarifier.
DENSITY SEPARATORS – Process Engineers provides density separator sand classifiers. Density separators are a very accurate way to classify sand and are able to make a very specific cut to maximize desirable sand products.
STRUCTURAL – Process Engineers designs and manufactures custom structural supports for cyclone systems. We also design rubber lined manifolds for material splitting to multiple units and bulk material handling hose for conveying sand slurry between pumps and cyclones.
SLURRY PUMPS – Process Engineers represents Georgia Iron Works (GIW) slurry pumps.
SUBMERSIBLE PUMPS – Process Engineers offers Tsurumi pumps for this application.
The Process Engineers high capacity water clarifier/thickener separates fine particle solids (typically passing 200 mesh/74 micron or finer) by adding a treatment polymer to the incoming slurry from a cyclone, screw classifier, sand classifier and/or storm water. The polymer attaches to the solids in the slurry causing them to clump together and gain enough mass to drop out of solution via gravity. The mud settles to the bottom of the tank and is raked to the center where a thickening cone maximizes slurry density before being pumped out. As the solids settle out, a rising current of clean water is collected in an overflow weir (can be cleaner than 50 NTU depending on application). These systems recycle over 90% of the water in the system for future use.
Process Engineers have some of the largest capacity clarifiers in the country -- 100' diameter and 23,000 gpm.