초록 ▼

The invention is directed to the more effective cleaning of filter bags in a filter apparatus of the type having tubular venturis extending into the outlet ends of tubular supporting cages for the respective filter bags. Generally, such filter bags are cleaned by a periodic reverse flow of a jet of

The invention is directed to the more effective cleaning of filter bags in a filter apparatus of the type having tubular venturis extending into the outlet ends of tubular supporting cages for the respective filter bags. Generally, such filter bags are cleaned by a periodic reverse flow of a jet of air into each venturi and thus through the filter bag. To enhance the cleaning of each filter bag, the present invention provides a hollow, perforated air diffuser tube communicatively connected to, supported by and extending from each venturi and longitudinally within the respective tubular cage and its surrounding filter bag so that, when a reverse flow of a jet of air is directed into the filter bag via the venturi, the diffuser tube diffuses and distributes the air throughout the filter bag so as to dislodge filtered particles along the length of the filter bag.

대표청구항 ▼

In a filter apparatus of the type wherein a particulate-laden gas is directed through a filter bag for filtering and retaining the particulate material on the exterior of the bag, wherein the filter bag has an outlet end communicating with a tubular venturi extending into the filter bag for discharg

In a filter apparatus of the type wherein a particulate-laden gas is directed through a filter bag for filtering and retaining the particulate material on the exterior of the bag, wherein the filter bag has an outlet end communicating with a tubular venturi extending into the filter bag for discharge of the filtered gas therethrough, and wherein the filter bag is cleaned by a periodic reverse flow of a jet of air into the venturi and into and through the filter bag, and further wherein the filter bag is supported by a tubular cage positioned within the filter bag, the combination therewith of a hollow open-ended air diffusing means having openings therein and being communicatively connected to, supported by and extending from said venturi within said tubular cage for receiving in said hollow means a reverse flowing jet of air via said venturi for diffusing and distributing the air throughout the filter bag when a periodic reverse flow of a jet of air is directed into the filter bag so as to more effectively clean the filter bag while also reducing excessive flexing of the filter bag and abrasive wear thereof to thereby provide a substantial increase in the efficiency of the filter apparatus and a significant increase in the life of the filter bag.