Patent ID: 8231715
Filing Date: 2012-07-31
Classification: B01D

Abstract:
1. A filter arrangement for cleaning gases contaminated with particles, the arrangement comprising: at least one filter unit with an exterior filter and an interior filter supported in a filter position with the interior filter in the exterior filter and with lower edges of the exterior filter and lower edges of the interior filter aligned with one another and connected and in contact via a closed area to define a clean space on one side of the connected interior filter and the exterior filter, said clean space being defined between the interior filter and the exterior filter, wherein contaminated gas is provided outside of the exterior filter and on an inner side of the interior filter; a means for delivering a cleaning fluid; a relative movement means for moving one of the exterior filter and the interior filter relative to the other of the exterior filter and the interior filter for disconnecting the contact at the closed area to provide a gap thereat, said gap being located at a lower region of said exterior filter and said interior filter, wherein the filter is cleaned by spraying the cleaning fluid while the gap is exposed in the lower region of the exterior filter and the interior filter.