A new vibratory screener that discharges oversize particles 360° around the periphery of a circular screening deck increases capacity, improves efficiency, minimizes screen blinding and prolongs screen life, according to Henry Alamzad, president, Kason Corp.
The screener, a 60 in. (1524 mm) diameter Vibroscreen® model with "External Kascade" deck, is intended for screening of wet or dry bulk materials containing a large percentage of oversize fractions, at higher rates than attainable with conventional screeners.
As material is fed onto the center of the screening deck, on-size particles pass through the screen and funnel through a lower discharge chute. Oversize particles flow outward in a spiral pattern, and cascade at any point over the periphery of the circular screen onto a spiral vibratory trough that directs the material into a high capacity discharge spout.
"Allowing oversize particles to cascade 360° around the screen’s periphery, instead of through a 15° to 25° opening created by a conventional discharge spout, eliminates a discharge capacity restriction associated with overs building up around the screen circumference," explains Alamzad.
The special screening deck is offered on any of the company’s Vibroscreen separators ranging from 40 to 72 in. (1016 to 1829 mm) in diameter, and is available as a retrofit kit for any make of circular vibratory screener.
A range of accessories is available including clean-in-place spray heads, anti-blinding devices, articulated lids for rapid screen changes, and an automatic long-term lubrication system for gyratory motor bearings.
The company also manufactures numerous types and sizes of circular vibratory screeners and centrifugal screeners for separating virtually any solid from any solid or slurry, as well as static sieves and circular fluid bed dryers, coolers and moisturizers.