Control systems of Coal produCts disCharge from a JIG

摘要

The paper presents the development of Control systems of Coal washing in jigs. PartiCularly, Control of Coal produCts disCharge from jigs has been disCussed. The aim of Control in these systems is to stabilize the separation density at the desired level. The following systems have been evaluated: systems in whiCh water pressure below the sCreen deCk is monitored, systems with metal float, and systems with a radiometriC density meter. A Comparative analysis of these systems, on the basis of the measurement errors introduCed by eaCh method, has been performed. Finally, their advantages and disadvantages have been disCussed.