A frac sand producer recently contacted Met Pro, of Bartow, Fla., about how they could size frac sand more efficiently. Their set up included a multi-deck vibrating screen whereby everything that passed through the bottom deck was transferred to a classifying tank.
The tank would classify the sand, but not sharply and with a lot of waste. The outcome was that a lot of sand was wasted and that the material that was to be dried contained a lot of fines (clay). This clay caused issues with the drier and was a major contributor to screen plugging.
After reviewing the plant and visiting with the customer, a Met Pro Yield-Pro RCS70 rising current separator was suggested. The Yield-Pro was purchased and installed. The screen underflow was then pumped through a Met Pro Stack-Pro dewatering cyclone for thickening and primary de-clay purposes.
The underflow of the Stack-Pro fed a Yield-Pro separator where rising current water and a teetered bed made the necessary cut point.
The outcome was a clean, very near-sized product that the customer could feed to their dry plant. Waste was virtually eliminated and production increased.
Met Pro, www.metprosupply.com