Plug-and-play controller for high-pressure grinding mills

Siemens is extending the Simine portfolio for high-pressure grinding mills (HPGR) to include a new controller. Plug-and-play functionality makes the load share controller available for immediate use. The web-server based operator interface allows the process engineer at any time (on-line and off-line) to adapt the controller parameters and thus optimising the torque distribution. The controller it is already being successfully used by one customer.

Tests before and after optimisation have demonstrated great benefits of the optimised controller for the mill. The new load share controller follows established control scheme. During start of the HPGR, the load share controller is inactive. When a certain torque level has been reached the controller takes over load share control already during mill start. If the controller is not ready for use (for example, in the event of disruption), the drives do not start. However, operation without load sharing is available. In this case the drives take the speed reference from the mill automation.

Contact Jennifer Naidoo, Siemens, Tel 011 652-2795,


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Source: EE plublishers

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