Elliptical movement for high-moisture screening
This company has engineered a new, elliptical-motion Niagara XL-Class vibrating screen (photo) for a Brazilian iron-ore producer. The new technology handles screening applications with high-moisture content, and can easily handle capacities up to 3,500 ton/h while minimizing water usage. The XL-Class runs in an elliptical motion of up to 6 × g in a high-moisture iron-ore screening application to ensure stratification in all phases of screening. The new vibrating screen also features a robust elliptical exciter drive that offers a bearing life up to 75,000 h. Iron ore contains up to 15% moisture, and often behaves like a pasty, clay-like material, prone to blinding on a screen deck. The elliptical motion and increased acceleration of the XL-Class ensures that the material is stratifying without blinding or contamination. The elliptical-motion XL-Class vibrating screen is available in a wide range of sizes, in either a single module or tandem design. — Haver & Boecker Niagara, St. Catharines, Ont., Canada