Prevention of Material Spillage from Vibrating Screens - Cost Effective and Innovative Solution
Vibrating screens of different capacities are integrated part of any material handling circuit especially for Sinter and Coke Plants and for Blast Furnaces where larger size material (Coke, Sinter, ores, etc.) are handled. Screen with cardan shaft arrangement do not have spillage issues, but have high motor vibration issues which can be dealt with separately, here we will focus on spillage issues from the screen which are driven by V-belt arrangement.
Concerns
Unlike conveyor belts of material handling systems, screens usually do not have zero speed switch (ZSS) and run feedback for screen are used as interlock of upstream equipment (conveyor belt or feeder). The interlock is OK till the V-belt is healthy. As we all know, V-belts are prone to sudden failure. As soon as the belt snaps or comes out of the pulley, the motor continues to run, as per logic, upstream belt doesn’t stops leading to huge spillage and plant stoppage.