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Difference between revisions of "Belt Filters"
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[[Category:Filtration]]{{Knoppen}} | [[Category:Filtration]]{{Knoppen}} | ||
[[File:Belt_filters_01.jpg|thumb|right|Belt filter]] | [[File:Belt_filters_01.jpg|thumb|right|Belt filter]] | ||
[[File:Belt_filters_02.gif|thumb|right|Belt filter working model]] | [[File:Belt_filters_02.gif|thumb|right|Belt filter working model]] | ||
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==Operation== | ==Operation== | ||
The feed sludge to be dewatered is introduced from a hopper between two filter cloths (supported by perforated belts) which pass through a convoluted arrangement of rollers. As the belts are fed through the rollers, water is squeezed out of the sludge. When the belts pass through the final pair of rollers in the process, the filter cloths are separated and the filter cake is scraped off into a suitable container. A belt filter is generally used in phosphatic fertiliser plants to separate the solid from slurry. It comprises washing to different zone to minimise the product losses. Belt filters use a vacuum system to minimise offgas and effluent during operations. It has applications in many other areas of industry. | The feed sludge to be dewatered is introduced from a [[Hoppers|hopper]] between two [[Filter Cloths|filter cloths]] (supported by perforated belts) which pass through a convoluted arrangement of rollers. As the belts are fed through the rollers, water is squeezed out of the sludge. When the belts pass through the final pair of rollers in the process, the filter cloths are separated and the filter cake is scraped off into a suitable container. A belt filter is generally used in phosphatic fertiliser plants to separate the solid from slurry. It comprises washing to different zone to minimise the product losses. Belt filters use a vacuum system to minimise offgas and effluent during operations. It has applications in many other areas of industry. | ||