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Classification of filter cloth
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| Published：2013.06.17 Reads： |
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Cloth of woven and non-woven type.
Cloth weaving classes are: plain, twill, satin.
1, the plain weave cloth weaving method is to alternate each weft floats on top of each warp, and then under the sink in the other warp, woven into the cloth without geometric distortion in the case of square mesh or rectangular, the hole size is determined by the wire diameter or the wire per unit length of line defined root of the number.
2, twill weave cloth is woven alternately each weft warp threads float on top of the warp threads and then under the sink to form a twill pattern, cloth large geometric deformation when the warp and weft cloth When using long multifilament, mesh irregular.
3, satin weave cloth weaving is a weft (or warp) floating in certain warp (or weft) above, then submerged in a warp (or weft) under alternating in this way. Non-woven non-woven filter cloth and blankets classes.
Non-woven filter cloth is made of wool or synthetic short fibers are arranged densely without rules, can be added with or without a resin binder (thermal bonding or chemical bonding, after compacted to form a fibrous layer are bonded together, semblance loose cloth assemblage (such as nonwoven fabric and felt like> fiber layer thickness control, it controls the cloth pores and density of such cloth have irregular pore structure, large pores, If the surface is not subjected to heat treatment, filtration mechanism close to the depth filtration. If after suitable heat treatment, so that the surface layer of high density and a thin layer of a small diameter, when the cloth surface than the particles will be trapped holes Even smaller particle diameter than the hole, as long as the solid - liquid suspended solids concentration of the solid phase Gao, bridging occurs while the surface of the cloth cake, cake filtration with the same mechanism.
Horizontal vacuum belt filter cloth, the cloth often after finishing before sale. The most common methods of heat treatment and finishing calender two kinds. Heat treatment of the synthetic fiber cloth in order to enhance the stability, it is more suitable temperature in Gao. Light pressure with high pressure hot roll, to be heat-treated cloth between the two moves across the heat roller, so that the cloth surface smooth and shiny, in use, to improve the performance of the filter cloth of the cake discharge.
Woven cloth made of different methods of sorting by priority over performance are as follows:
The filtrate Transparency: plain cloth twill cloth> satin cloth> Non-woven filter cloth;
The filtrate Transparency: plain cloth> Twill Cloth> satin cloth> Non-woven filter cloth;
Filtration rate: plain cloth <twill cloth <satin cloth <nonwoven filter cloth;
Cake moisture content: plain cloth> Twill Cloth> satin cloth> Non-woven filter cloth;
Cake discharge performance: non-woven filter cloth <plain cloth <twill cloth <satin cloth;
Cloth life: non-woven filter cloth <satin cloth <tabby cloth <twill cloth;
Regeneration Performance: satin cloth> Twill Cloth> plain cloth> Non-woven filter cloth. |
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