Multi-layer filter structure and use of a multi-layer filter...

Details Multi-layer filter structure and use of a multi-layer filter... Multi-layer filter structure and use of a multi-layer filter...

2005-11-22

2005-11-22

Pham, Minh-Chau (Department: 1724)

Gas separation

Two or more separators

Plies or layers of different characteristics or orientation

C055S527000, C055S382000, C055SDIG002, C055SDIG003, C055S485000, C055S487000, C015S347000, C015S352000, C095S057000, C095S078000, C095S287000, C096S015000, C096S069000

Reexamination Certificate

active

06966939

ABSTRACT:
The invention describes a multi-layer filter structure and the use of a multi-layer filter structure for the dust removal from gases, wherein a coarse dust filter layer, a fine dust filter layer, and a support layer are disposed behind one another in the direction from the inflow side to the outflow side, and which is designed such that the fiber diameter distribution within the coarse dust filter layer and fine dust filter layer has a gradient, and that the fiber diameters of the coarse dust filter layer and fine dust filter layer continually decrease from the inflow side to the outflow side.This multi-layer filter structure may be used in a filter cassette for industrial dust removal, as well as in a stationary or mobile home dust cleaning device.

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