| abstract |
A pleated filter bag, which can be used in a baghouse type dust collector, is elongated, has a longitudinal hollow center with an open end, and a pleated filter wall surrounds the hollow center . The pleated filter wall has a felt like PTFE fiber, which is felted on a pleatable scrim with multiple gaps that can be made of metal, and also because of the permeability of the scrim. It has low permeability. A membrane of low permeability material, such as an E-PTFE membrane, covers the support felt outside the filter bag. [Selection] Figure 1 |