Kason offers a variety of anti-blinding devices that increase production by dislodging near-size particles from apertures of the screen. These devices reduce the clearance between the rotating paddle and the cylindrical screen without contacting or abrading the screen. Narrowing the gap between the rotating element and the screen surface enhances screening rates under near size conditions, thereby increasing throughput.
At top left, rubber wiper blades handle fibrous material that would otherwise become entangled in brush bristles or wrap around serrated edges. Rubber blades allow oversize particles to pass by the rotating blade, and are also effective in liquid/solids separations.
At left center, integral air brushes keep screens clean when processing with fine meshes that would be susceptible to damage or abrasion by mechanical anti-blinding devices. Air enters at the end of the hollow drive shaft and exits through multiple air nozzles, blowing the screen clean.
At bottom left, brushes are flexible, and maintained approximately 1/16" to 1/8" (1.6mm to 3.2mm) away from the screen surface to prevent damage, while allowing desired particles to pass easily through the screen openings.