bro et watermaster 2013 02 en tcm30 23340
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http://www.gea.com/global/de/binaries/BRO-ET-waterMaster-2013-02-EN_tcm30-23340.pdfTRANSCRIPT
engineering for a better world GEA Mechanical Equipment
GEA Westfalia Separator waterMaster
Energy consumption reduced by up to 50 percent
GEA Westfalia Separator waterMaster achieves first-class separation results whether as a
stationary or a mobile unit. This applies to the dewatering and concentration of sewage sludge,
the treatment of drinking water and the recovery of valuable materials.
In times of rising disposal costs and energy prices, the operating costs of a decanter are becoming
more important than ever. Numerous technical innovations in the GEA Westfalia Separator
waterMaster ensure a uniquely favourable energy balance and first-class separation performance.
The specific energy consumption of the waterMaster 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.
The “Greener” your Water and Waste Water Treatment, the “Blacker” your Figures!
The outstanding efficiency and productivity of the waterMaster are based on the following technical features:
• GEA Westfalia Separator ecodrive
• GEA Westfalia Separator summationdrive
• Deep-pond design
• GEA Westfalia Separator energyjets
-10%
-30% -50%
-5% -5%
GEA Westfalia Separator waterMaster
GEA Westfalia Separator ecodrive
Deep-pond design
Earlier generation of decanters
GEA Westfalia Separator summationdrive
GEA Westfalia Separator energyjets
Reduced Energy Consumption in GEA Westfalia Separator’s waterMaster
Start main motor with frequency converter up to bowl speedSwitch main motor direct on line2nd motor with frequency converter up to required differential speed
123
Frequency converter
1
2
3
-5%
GEA Westfalia Separator ecodrive
Whilst earlier generations of decanter centrifuges had two separate frequency
converters to drive the bowl and scroll, GEA Westfalia Separator’s water Master
is controlled by just 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.
GEA Westfalia Separator ecodrive
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.
GEA Westfalia Separator summationdrive
The deep-pond design of bowls in the GEA Westfalia Separator waterMaster
ensures optimized flow characteristics in the bowl, 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.
Deep-Pond Design
Maximum separation efficiency – deep pond*
The deeper the pond, the higher the pressure on the separated solids at the bowl shell and the smaller the particles which can be separated.
Shallow pond
*Pond depth is dependent on application – bowls with a shallow pond have to be used for dewatering or classifying purposes, for example
Deep pond
-30%
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.
GEA Westfalia Separator energyjets
Conventional liquid outlet GEA Westfalia Separator energyjets
-10%
Werner-Habig-Straße 1, 59302 Oelde, GermanyPhone: +49 2522 77-0, Fax: +49 2522 77-2950www.gea.com
GEA Mechanical Equipment
GEA Westfalia Separator Group GmbH
GEA Group is a global engineering company with multi-billion euro sales and operations in more than 50 countries. Founded in 1881, the company is one of the largest providers of innovative equipment and process technology. GEA Group is listed in the STOXX® Europe 600 Index.
We live our values.Excellence • Passion • Integrity • Responsibility • GEA-versity
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