Patent ID: 6284136
Filing Date: 2001-09-04
Classification: B01D

Abstract:
An apparatus for cleaning a preselected filter surface of a filter medium in a suction drier, the cleaning apparatus comprising a cleaning unit containing a sealing element and at least one ultrasound source within a protective casing, said sealing element having outer and inner surfaces, said outer surface of said sealing element being capable of providing a liquid tight seal with said preselected filter surface of the filter medium when placed in contact therewith, said inner surface of said sealing element being attached to or around said protective casing, said protective casing being coupled to a motion member that is capable of moving said cleaning unit between a rest position and a cleaning position, a wall of said protective casing, when the cleaning unit is in said cleaning position, being capable of forming, in combination with said inner surface of said sealing element, an essentially closed cleaning space which surrounds the preselected surface of the filter medium which is to be cleaned, and in which said cleaning space both ultrasound and fluid cleaning treatments can occur, said sealing element having an inlet aperture for feeding cleaning liquid into said cleaning space and an outlet aperture for removing cleaning liquid and particulate material from said cleaning space.