Kason Corporation introduces a dewatering-drying system, consisting of a circular, vibratory screener integrated with a circular, fluid-bed dryer that removes oversized and undersized particles, while dewatering and drying on-size material. The screener, a 30-inch (762-millimeter) diameter Vibroscreen model K30-2-SS, together with the 40-inch (1016-millimeter) diameter Kason model K40/48-1FBD-SS dryer, removes up to 50 gallons (189 liters) of water per minute, and dries up to 700 pounds (318 kilograms) of on-size particles per hour.
The screener is equipped with an imbalanced-weight gyratory motor that vibrates the screening chamber, which is suspended on springs. Oversized particles travel in controlled-spiral pathways from the center of the upper screen to a spout at the screen's periphery, where they are discharged for reprocessing. On-size, dewatered pellets fall onto the lower screen and travel in controlled-spiral pathways to an extended spout at the screen's periphery that leads to the fluid-bed dryer. Undersized particles and water pass through the lower screen onto an integral, metal chute and through a third spout for reprocessing.
The circular fluid bed dryer is half the size and weight of a rectangular fluid-bed dryer of equivalent capacity and allows consolidation of all primary system components. The strengths of the circular processor include eliminating the need for heavy-gauge walls and cross braces otherwise required to withstand continuous vibration and allowing vibratory motors to be downsized. The circular unit also requires only one air inlet and outlet and has fewer weld seams, reducing the overall size and construction costs, especially when finished to 3-A, FDA, and BISSC sanitary standards. Cleaning time is cut by more than 50%, due to the reduction in interior seams and the accessibility afforded by a quick-disconnect housing.
