Liquid extraction filter and method for cleaning it
AssigneeOutotec (Filters) Oy
InventorsBjarne Ekberg, Olli Högnabba, Jason Palmer
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Abstract
The object of the invention is a liquid extraction filter, more particularly a continuous-action, top-feed, vacuum drum filter. What is essential in the invention is that the filter comprises a drum structure (1) and filter elements (2), the filtration surface of which filter elements is formed of microporous hydrophilic material such that when filtering with a partial vacuum it is impervious to the surrounding air.
Claims20
Liquid extraction filter, more particularly a continuous-action, top-feed vacuum drum filter, characterized in that the filter comprises a drum structure (1) and filter elements (2), the filtration surface of which filter elements is formed of microporous hydrophilic material such that when filtering with a partial vacuum it is impervious to the surrounding air.
Method for cleaning a liquid extraction filter, more particularly a continuous-action, top-feed vacuum drum filter, characterized in that in the method a microporous hydrophilic material functions as the filtration surface, which when filtering with a partial vacuum is impervious to the surrounding air.
Use of a microporous hydrophilic material for forming a filtration surface of the filter elements (2) of a liquid extraction filter, more particularly a continuous-action top-feed vacuum drum filter, such that when filtering with a partial vacuum it is impervious to the surrounding air.
Dependencies are inferred from the claim text.