A CANDLE TYPE APPARATUS FOR FILTERING BALLAST WATER HAVING A TOP PLATE ALLEVIATING WATER IMPACT

摘要

The present invention relates to a candle type ballast water filtering device. The ballast water filter device includes: a housing having an let unit and an outlet unit which ballast water in a vessel can flow into or out from, wherein the housing is divided into a housing upper part and a housing lower part by a lower plate; a filter unit located in the housing upper part and filtering the ballast water flowing through the inlet unit; and an automatic washing unit washing foreign substances attached to the filter unit. The filter unit includes: one or more filter elements located along a route of a concentric circle around a driving shaft of a driving unit and capable of filtering and reverse washing; an upper plate connected to the upper side of the filter element and preventing filtering water stored in the housing upper part from being exposed to the outside of the housing; and a shock absorbing unit relieving vibration transmitted from a housing cover to the filter unit by being fixed to the upper plate. The filter unit is damaged due to vibration and impact transmitted from the outside of the vessel and can be filtered from being separated from a fixed position in the inner side of the housing.