| A leading builder and operator of waste-to-energy burning facilities began looking for an alternative and efficient method for the delivery of lime slurry used in Flue Gas Desulfurization. The traditional method was to use 5% lime slurry and 95% water sprayed into the emissions tower creating a barrier for the emission to travel through. The lime slurry would then attach to the sulfur and drop to the bottom of the tower, and the water was used to cool the temperature of the emissions. Existing progressing cavity pumps worked satisfactorily in this application. |
| The alternative method requires an increase in the solids content of the lime slurry from 5% to 20%. The concentrated lime would significantly decrease the life of their existing pumps. It was time to look for alternative pumps. The Hydra-Cell® slurry duty pump was the slurry duty pump of choice. Not only was the Hydra-Cell® slurry duty pump capable of handling the slurry, but the customer also saw an increase in pump life, as well as a significant reduction in overall maintenance cost. |
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The seal-less nature of the Hydra-Cell ® slurry duty pumps enable charged and dirty liquids to be processed without need for fine filtration to protect the slurry duty pump. |
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The Hydra-Cell® slurry duty pumps need little maintenance and can operate at continuous duty at high pressure. |
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Pulsation is low, so dampeners may not be required for most Hydra-Cell® slurry duty pumps. |
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Hydra-Cell® slurry duty pumps can handle solids up to 500 microns, or more. They can be pumped without fine filtration. System costs are reduced and maintenance is simplified. |
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Most slurry duty pumps in the Hydra-Cell® pump range can operate at any pressure from <1 bar up to at least 70 bar. Some models up to 170 bar. |
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Seal-less design distinguishes the Hydra-Cell® slurry duty pumps from other slurry duty pumps and is the basis of its long service life - many of the liquids pumped are harmful to pump seals. The Hydra-Cell® slurry duty pumps are tolerant of small solids, resistant to chemical and corrosive attack. |
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Energy savings. Compact and highly efficient (80-85%), a Hydra-Cell® slurry duty pumps can be fitted with a smaller motor than would be required by many much bigger slurry duty pumps for equivalent flows and pressures. |
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Wanner Engineering, Inc.
Wanner International Ltd.