Monofilament double-layer filtering cloth

Abstract

The invention discloses monofilament double-layer filter cloth, which is woven by terylene, polypropylene fiber, or other material monofilament according to a double-layer structure. The structure consists of a surface structure and a lining structure; the surface structure is 4 / 1 cross twill, the lining structure is 2 / 2 left-to-right twill, the array ratio of the surface warp to the lining warp is 4 to 1, the array ratio of the lining woof to the lining woof is 2 to 1. The monofilament usually adopted by the surface structure is thinner; the monofilament usually adopted by the lining structure is thicker. During the usage, the thin monofilament of the surface layer intercepts the materials, and the thick monofilament of the bottom layer enhances the strength of the cloth, so that the solid can be quickly separated from the liquid.

Description

Technical field [0001] The invention relates to a single-filament double-layer filter cloth that realizes solid-liquid separation, and in particular to a single-filament double-layer filter cloth capable of filtering materials with relatively high viscosity. Background technique [0002] At present, most of the woven filter cloths in the domestic market are composed of multifilament and short fibers, and the organization is mostly plain weave, twill weave, satin weave or their changes, all of which are single-layer weaves. During use, the suspension is in contact with the filter cloth, and solid particles smaller than the pore size of the filter cloth pass through the filter cloth under pressure, and the particles larger than or equal to the pore size of the filter cloth are trapped on the surface of the filter cloth to form a layer of filter cake, and then The gradually thickening filter cake continues to retain particles, thereby achieving solid-liquid separation. However, the ...

AI Technical Summary

Problems solved by technology

However, the filter cloth composed of multifilament and short fiber has the following problems during use: 1. It is easy to block when the viscosity of the material exceeds a certain value; 2. Bacteria are easy to breed; 3. The service life is short and the regeneration ability is poor; 4. Cake and filter cloth have poor peeling performance. Generally, woven filter cloth cannot filter materials with high viscosity, which makes it difficult to filter materials with high viscosity. The efficiency is low and the cost is high.

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