Aggregates Manager Digital Magazine
Issue link: http://read.dmtmag.com/i/485104
Supply by Therese Dunphy, Editor-in-Chief tdunphy@randallreilly.com AGGREGATES MANAGER April 2015 34 WASHED AND SEPARATED Today's washing and classifying equipment can help operators capture and clean more saleable product. Designed to remove large volumes of excess water from feed material, EIW Classifying Tanks smooth out feed fluctuations and remove excess sand particles for a consistent in-spec product. Recently, the MARK VI computerized sand re-blending control system was introduced for this equipment. It is said to make stockpile calibration easier and faster, al- lowing for a varying number of controlled products, as well as calibrated tons per hour forecast of the products produced. Producers using the system maintain tighter control of their products' Fineness Modulus (F.M.). Eagle Iron Works says it can handle up to two tanks simultaneously and makes calibration simple. Eagle Iron Works | www.eiwllc.com McLanahan says its Ultra Sand Plants help producers increase sand production, produce a drier product, and improve product consistency. Ultra Sand Plants combine separators, dewatering screens, and a slurry pump to provide an estimated 3 to 5 percent higher product yield over traditional fine material screw washers. They produce a drier product and do not have the inherent inefficiencies of screw washers, the com- pany says. The units send unwanted fines to waste streams, keeping product-sized fines in the product piles. They also have the ability to separate and combine sand fractions, allowing the user to blend coarse/ fine sands as needed to meet product specifications. McLanahan | www.mclanahan.com KPI-JCI and Astec Mobile Screens has added a new S9000 Dewatering Screen to its Series 9000 family of products. Capable of reducing moisture content of washed sand down to as low as 8 to 15 percent, the screen is available in multiple sizes, ranging from 2 feet by 7 feet up to 8 feet by 16 feet. The screen's 1/4-inch stroke operates at 1,200 rpm, providing high G force action to separate water from the material. It is equipped with urethane media, has an adjustable incline from 0 to 5 degrees, and can be pack- aged in portable, semi-portable, and stationary systems. KPI-JCI and Astec Mobile Screens | www.kpijci.com Classifying tanks with updated control system Drier, more consistent sand production New series dewatering screen