Larox has delivered what it claims to be the largest, totally gas tight horizontal belt filter ever built. The Pannevis GT filter, with a filtration area of 3mwidex16.8mlong (50.4 m2 total filtration area) was recently delivered for a solvent based edible oil application.

Operating under a nitrogen atmosphere, the Pannevis GT filter offers total containment of solvent based processes in an inert environment for safe and hygienic processing of a wide range of products including fine chemicals, bio-products, solvent-processed foodstuffs, solvent wetted organic solids, pyrophoric materials and pharmaceuticals.

The filter as delivered was designed to work at temperatures below ambient and was equipped with 3x counter-current washing with the washes applied by banks of spray nozzles for maximum cake coverage during each wash stage. Washing of the filter cloth sides prior to discharge also ensured all possible solid phase product is recovered. Both the solid and liquid phases are further processed as valuable product in this application.

The Pannevis GT filter offers all the advantages of the standard Pannevis RT filter including capability to carry out co- or counter-current washing, reflux washing, vibration, all forms of mechanical compression and either hot gas or micro-wave drying. They can be configured in any combination of the above options for multi-step processing exactly as the standard RT filters.

The filter housing is normally operated with a slight internal over-pressure using nitrogen, which is continuously re-circulated around the filter circuit so that all components including filtrate receivers and pumps are totally inert. A very small make-up of nitrogen is required to compensate for nitrogen exiting with the filter cake.

For more information, visit www.larox.com