At MINExpo, Deister Machine Co introduced its new Ultra-Fines Recovery System (UFR), which is designed to recover ultra-fine tailings in various mining applications, allowing operations to eliminate or greatly reduce the use of maintenance-intensive (and environmentally unpopular) settling ponds. As a far more cost-efficient alternative to the use of costly plate filter presses, for example, the Deister UFR enables producers to create a dry tailing or silt product which can be stockpiled prior to removal, or used as a saleable product. The system is capable of recoveries to 350-400 mesh, and at feed capacities from 1,500-3500 gallons per min. It uses a radial distribution manifold for even distribution of solids to all cyclones. The reverse slope vibrating screen offers solids capacities up to 70 t/h.The UFR System Cyclones are available with a variety of liner and body materials. Victaulic connections allow flexibility and ease of maintenance. Optional “Duck Bills” can be attached to the cyclone apex with siphon control to accommodate variable feed solids conditions. The sump is constructed with heavily reinforced walls and wide flange beam vertical columns. A sloped bottom plate promotes even solids flow to the pump inlet and an automatically adjusted make-up water valve protects the pump. A sturdy hand railed stairway and platform on both sides and back of the screen allow for safe and easy maintenance access; and several pump configurations are available mounted on a steel frame base pad.
Deister also announced two innovative equipment options for use on mine-duty screens at MINExpo. Developed from three years of exhaustive testing, Deister’s new Exciter vibrating mechanism is designed for use with large linear stroke screens and feeders. Multiple units can be positioned in series, and linked by flexible shaft couplings to provide exceptional B-10 bearing life in conjunction with aggressive G-force. State-of-the-art CNC manufacturing processes ensure tight tolerances and precision fits for the entire assembly. Innovative seal, shaft and bearing designs provide a rugged unit that is easy to maintain, especially when combined with the Deister System Saver Oil Filtration System. Removable external counterweight slugs allow for easy output force adjustment over a wide speed range. The Exciter mechanism can be driven by V-belts or direct drive flexible shaft.
As an option for large screens, the Deister Isolation Base incorporates a secondary set of support springs, as well as shock absorbers, which further isolate the forces generated by the vibrating screen frame from the stationary structure. This Isolation Base is also beneficial in reducing the size and complexity of the support structure under and around the vibrating screen.