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Drive selection for large Loesche vertical roller mills

M. Keyßner, T. Fahrland, Loesche GmbH, Duesseldorf, Germany

 

Rising demand from the cement industry for ever greater mill capacities is having implications for the drive systems that have been used up to now. With conventional drive solutions reaching their limits, the world’s leading gearbox manufacturers are developing new systems that can offer realistic alternatives for the higher-capacity mills that are now being ordered and delivered. This article looks at how Loesche undertook the evaluation of the best gearbox system for a new, high-capacity vertical roller mill, and explains the thinking behind the decisions made. After a summary of the most important functions of the drive for a vertical roller mill, its design and design limitations, there is a detailed comparison, using a real project, to select the best available drive system.

 

Summary CEMENT INTERNATIONAL 02/2016 pp 42-47

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02/2016 Content:


Drive selection for large Loesche vertical roller mills


Cement grinding with a roller-driven vertical roller mill Quadropol RD


A new approach to steep-angle conveying in quarries and smaller open-pit mines with thyssenkrupp’s Skip Way System


Energy saving in pneumatic conveying systems with Coperion components


The evolution of alternative fuels use in the German cement industry


Reactivity changes of cement raw meal by meat-bone meal additions