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Machine translation
1. (WO1981000058) DRY CLEANING OF PRESSURE FILTERS FOR LIQUIDS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/000058    International Application No.:    PCT/SE1980/000181
Publication Date: 22.01.1981 International Filing Date: 27.06.1980
IPC:
B01D 29/11 (2006.01), B01D 35/30 (2006.01), B01D 37/02 (2006.01)
Applicants:
Inventors:
Priority Data:
7905736 29.06.1979 SE
Title (EN) DRY CLEANING OF PRESSURE FILTERS FOR LIQUIDS
(FR) NETTOYAGE A SEC DE FILTRES A PRESSION POUR DES LIQUIDES
Abstract: front page image
(EN)Cleaning a filter surface (16) in situ in a filter housing (10) forming part of a pressure filtering apparatus for liquids is carried out by drying the coating deposited on the filter surface by means of hot air which is caused to flow at a moderate rate through the suspension chamber (5) of the filter housing in a direction over and substantially parallel to the sludge-coated filter surface. The dried coating is detached from the filter surface and removed from the suspension chamber by means of compressed air which alternately with the hot air and at a substantially higher rate than the latter also is caused to flow in a direction over and substantially parallel to the filter surface.
(FR)Le nettoyage d"une surface (16) d"un filtre in situ dans une enceinte d"un filtre (10) faisant partie d"un appareil de filtration sous pression pour des liquides s"effectue en sechant la couche deposee sur la surface du filtre a l"aide d"air chaud s"ecoulant a une vitesse moderee au travers de la chambre de suspension (5) de l"enceinte du filtre dans une direction au-dessus et sensiblement parallele a la surface du filtre recouverte de boue. La couche sechee est detachee de la surface du filtre et enlevee de la chambre de suspension par de l"air comprime qui, alternativement avec l"air chaud et a une vitesse sensiblement superieure a celle de ce dernier, s"ecoule dans une direction par dessus et sensiblement parallele a la surface du filtre.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)