Patent ID: 6638344
Filing Date: 2003-10-28
Classification: B01D

Abstract:
A filter vent system for separating entrained particulate matter from a conveying fluid in a vessel for containing said particulate matter, the system comprising:(a) a filtration zone, including a common clean air plenum defined within said filtration zone upstream of a vent outlet by a filter-supporting partition structure; (b) a plurality of filter units carried by said partition structure, each said filter unit having a downstream side continuously open to said common clean air plenum and an upstream side on which said particulate matter collects; and (c) a plenum pulsing system including a source of high pressure air connected to direct air into said common clean air plenum for applying a burst of high pressure air to pulse the volume of said plenum generally on a periodic basis to clean all of said filter units generally at the same time by inducing common short term rapid back flow.