Clinker cooler upgrade

A new integrated drive system at Ketton cement works in Rutland is saving around £86,000 year in electricity costs, with a resultant reduction in CO₂ emissions of 771 tonnes.
The clinker cooler upgrade project at Ketton, carried out by Siemens, used variable speed drive technology and Siemens‘ integrated drive systems to reduce both energy use and noise levels.

Six G150 converters with enhanced energy-saving functions have been installed with insulated bearings fitted to the existing motors.

Electrical engineer Trevor Jibb is delighted with the upgrade: “The significant energy savings we’ve already made, coupled with the reduction in carbon footprint mean that Ketton continues to be a great example of best practice within the Group, and the industry.“ An additional benefit is a reduction in noise levels and vibration at the clinker cooler plant, improving conditions for the workforce.

The significant efficiency improvements meant that the investment has paid for itself in just over a year and will continue to help the company make energy and CO₂ savings well into the future.