New system to control mass flows in screw conveyors
Thursday, January 12, 2017
Cooperation between Van Beek Schroeftransport and weighing specialist Penko Engineering has resulted in real time monitoring of how much product a screw is transporting.
Users can, for example, decide how many grams of a particular material per minute may be supplied to the process. The screw conveyor then adjusts the speed to this. They can also program the screw conveyor to stop on reaching a certain weight, or first empty itself and then stop.
During operation, users can see the material speed (m/s), number of kg/s, how many kg have already been transported and the control of the flow regulation from 0 to 100 %. This is possible by determining the mass of the screw plus contents with special strain gauge recorders. The movement and the speed can be fixed with a speed monitor.
Visitors to the Industrial Processing exhibition were the first to try out the new technology. With the press of a button, they were able to increase or reduce the capacity easily; the screw conveyor responded immediately by adjusting the speed. They could also give the screw the command to stop transport after a certain quantity.
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