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GEA Westfalia Separator Technology – Keeps you up and running

Posted: Friday 15th August 2014

Reduce your energy consumption by up to 50 percent with the new waterMaster.

Recently exhibited at IFAT Ensorga, the new GEA Westfalia Separator waterMaster CF 6000 decanter delivers high uptime reliability along with maximum performance and separation efficiency round-the clock and with minimal energy consumption.

With an optimal track record in terms of performance and reliability this member of the CF ecoforce decanter series is deserving of the motto; ‘GEA Westfalia Separator Technology – Keeps you up and running’.

The “Greener” your Water and Waste Water Treatment, the “Blacker” your Figures

The waterMaster achieves first-class separation results whether as a stationary or a mobile unit. This applies to the dewatering and thickening of sewage sludge, the treatment of drinking water and the recovery of valuable materials, like nutrients nitrogen and phosphorous. Numerous technical innovations in the GEA Westfalia Separator waterMaster ensure a uniquely favourable energy balance and first-class separation performance.

Optimized drive system GEA Westfalia Separator ecodrive

Whilst earlier generations of decanter centrifuges had two separate frequency converters to drive the bowl and scroll, the waterMaster is controlled by only one frequency converter. The frequency converter of the secondary motor starts the primary motor when the machine starts up. Once the decanter bowl has reached its rated speed, the machine switches to mains operation and the frequency converter is applied to the secondary motor where it now controls the differential speed. This saves one frequency converter in the control unit and eliminates the loss of efficiency caused by a frequency converter. This has allowed energy consumption to be reduced by a further 5 percent.

Efficient gear drive: GEA Westfalia Separator summationdrive

The intelligent kinematics of GEA Westfalia Separator’s summationdrive bring together (“sum”) the outputs of both motors and then transmit them precisely to bowl and scroll. Unnecessary conversion losses, such as those which occur in other solutions involving reverse power (backdrive or additional belts), are not an issue with summationdrive. Instead, differential speed is supplied energy-efficiently and seamlessly across a broad range, saving up to 5 percent energy compared to other drives. As a result, any additional electrical components for recycling energy can be dispensed with.


Benefits of Deep-Pond Design

The deep-pond design of bowls in the GEA Westfalia Separator waterMaster ensures optimized flow characteristics in the bowl with high hydrostatic pressure, improved clarification and a reduced energy requirement for discharging the product. This reduces electricity consumption by up to 30 percent and also dramatically cuts the requirement for flocculents.

Reduced energy demand with GEA Westfalia Separator energyjets

One source of energy consumption in a decanter centrifuge is the power required to discharge the clarified liquid. This can represent up to 50 percent of the decanter’s total energy requirement. Using GEA Westfalia Separator energyjets, specially-shaped weir plates with integrated flow deflection allow the decanter’s energy requirement to be reduced by up to 10 percent. All in all the specific energy consumption of thewaterMaster has been reduced by up to 50 percent overall. This means the decanter now requires only 0.5 kWh for each cubic metre of thickened sludge. We have also managed to reduce flocculent consumption, rendering water and waste water treatment more sustainable and ensuring that your investment holds its value for longer. This all makes for a crucial advantage for GEA Westfalia Separator waterMaster – especially in times of rising disposal costs and energy prices.

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