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Siemens continues best practice at Hanson Ketton

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World Cement,

A control system/integrated drive system solution from Siemens at Hanson Cement’s Ketton plant in Rutland has produced a number of significant benefits for the cement giant and has improved the operation’s sustainability.

The clinker cooler upgrade project at Ketton carried out by Siemens has resulted in an annual CO2 reduction of 771 t and over £86 000 saved in energy use, much of it through the use of variable speed drive technology and Siemens‘ integrated drive systems technology (IDS).

Return on investment for Hanson has also been achieved in less than 14 months, with an additional environmental benefit: lower noise levels.

The Siemens solution included the implementation of each of the drive chains, which formed the control system (CS) IDS total engineered solution. The total solution included six G150 Sinamics converters, ranging from 45 kW to 160 kW, and pressure differential instruments for PI loop control, interfacing into the current DCS system via Profibus. These particular converters used enhanced energy-saving functions. Insulated bearings were also fitted to the existing motors at the plant. Full power and control cable upgrades were also included, complete with full site installation and commissioning of the complete clinker cooler process. Siemens provided full engineering and project management of the turnkey solution and full technical documentation.

An additional benefit to Ketton of the upgrade has been a reduction in noise levels and vibration at the clinker cooler plant, improving conditions for the workforce as well as for the surrounding environment.

Adapted from press release by Joseph Green

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