CN2411836Y

CN2411836Y - Silk filtering cloth

Info

Publication number: CN2411836Y
Application number: CN 00219092
Authority: CN
Inventors: 邵和平; 姜立新
Original assignee: Maanshan Institute Of Mining Research Ministry Of Metallurgical Industry
Current assignee: Maanshan Institute Of Mining Research Ministry Of Metallurgical Industry
Priority date: 2000-01-14
Filing date: 2000-01-14
Publication date: 2000-12-27
Anticipated expiration: 2010-01-14

Abstract

The utility model discloses a silk woven filtering cloth. The utility model is formed by interweaving single yarns as warp threads 5 and multifilament yarns as weft threads 6. The utility model synthesizes the advantages of single yarn filter clothes that the anti clogging ability is high, and the cake unloading rate is high and the advantages of multifilament yarn filtering clothes that the density is high, and the strength is large. The utility model can be widely used in the solid liquid separation work in the fields of metallurgy, coal, chemical industry, environmental protection, etc.

Description

A kind of Silk filtering cloth

The utility model relates to a kind of filter medium, specifically relates to the Silk filtering cloth that a kind of Separation of Solid and Liquid is used, and can be widely used in the filtration operation in fields such as metallurgy, coal, chemical industry, environmental protection.

Filter cloth has crucial influence as a kind of filter medium to dehydrating effect, and suitable filter cloth can improve dehydrating effect greatly, improves production capacity, reduces operating cost.

China all consumes several hundred million square metres filter cloth every year, multifilament filter cloth, acupuncture filter cloth, the stainless steel wire filter cloth of its principal item for being made into by the chemical fibre multifilament, the product that the chemical fibre monofilament filter cloth just occurred in recent years.

Chemical fibre multifilament filter cloth is the same with cotton, becomes warp and parallel by numerous tiny ultimate fibre twisting, and again through technologies such as warping and quilling, weaving on looms then to make forms, and it is a kind of traditional product, proportion maximum in filter cloth.This filter cloth is better weaved, and can require to be made into the product of all thickness and various density according to difference, and higher intensity is arranged, but it has following deficiency:

(1) warp and parallel are all formed by multifilament twisting, and every warp and parallel are all twisted by countless superfine chemical-fibres filaments or short silk and lumped together.In the Separation of Solid and Liquid process, some solia particles can be embedded between these little silks, gradually segment space is stopped up, and after stopping up to a certain degree, the permeability of filter cloth and water permeability variation, this phenomenon is serious day by day, stops up until filter cloth and scraps.

(2) fabric that is made into by multifilament, surface exist a large amount of microcosmic uneven, and filter cake is had bigger adhesion, and the resistance of removal filter cake increases, and therefore, has usually influenced output because of discharge rate is low.

In recent years the stainless steel wire filter cloth of Chu Xianing has certain advantage, but the stainless steel wire poor flexibility, is difficult to knit close, and the surface is also not too smooth.And the filter cloth that is made into by the chemical fibre monofilament, its warp and parallel all are the chemical fibre monofilament, existing stronger anti-blockage capability, and the surface also can form smooth even curface by high-temperature shaping, is a kind of filter cloth of better performances.But the chemical fibre monofilament is not too soft, is difficult to knit not only abundantly, but also fine and close, thereby is difficult to apply in the dewatering operation of fine particle stage material.

The purpose of the utility model Silk filtering cloth is exactly the problems referred to above that exist in the existing filter cloth, and provide that a kind of density is higher, intensity is big and anti-blockage capability is strong, discharge rate is high novel Silk filtering cloth, it has the two advantage of multifilament filter cloth, monofilament filter cloth concurrently.

For achieving the above object, the utility model by the following technical solutions:

The utility model Silk filtering cloth adopts a kind of novel design concept, and its warp adopts monofilament, and parallel adopts multifilament, warp monofilament, parallel multifilament the utility model Silk filtering cloth that is interwoven.Its pattern tissue can be plain weave, twill, satin weave or other organizational form.

For reaching better result of use, it is good that the pattern tissue of the utility model Silk filtering cloth adopts twill.

For guaranteeing to the utlity model has higher discharge rate, be relative shiny surface in the more side of the utility model Silk filtering cloth middle longitude.

For describing the utility model better,, the utility model Silk filtering cloth is described further below in conjunction with drawings and Examples.

Fig. 1 is existing multifilament filter cloth cross-sectional view.

Fig. 2 is the cross-sectional view of existing monofilament filter cloth.

Fig. 3 is the cross-sectional view of the utility model Silk filtering cloth.

By existing multifilament filter cloth cross-sectional view shown in Figure 1 as can be seen, warp 1 adopts the chemical fibre multifilament, and parallel 2 also adopts the chemical fibre multifilament, warp multifilament and the parallel multifilament multifilament filter cloth that is interwoven.Because every warp and parallel itself exist micro-pore, in use, after solid particle was inlayed, filter cloth stopped up gradually.

By existing monofilament filter cloth cross-sectional view shown in Figure 2 as can be seen, warp 3, parallel 4 all adopt the chemical fibre monofilament, and warp 3 is interweaved with parallel 4, and warp 3 surfaces flatten behind high-temperature shaping and form smooth even curface.This filter cloth anti-blockage capability is stronger, but intensity is low, and service life is short.

What Fig. 3 showed is the utility model Silk filtering cloth cross-sectional view, as seen from Figure 3, warp 5 of the present utility model adopts chemical fibre monofilament, parallel 6 to adopt the chemical fibre multifilament, the quantity of warp is 3 times of parallel, after warp chemical fibre monofilament and parallel chemical fibre multifilament interweave, forms single multifilament filter cloth that interweaves, the decorative pattern of filter cloth is selected twill, in actual fabrication, warp chemical fibre monofilament is selected lower material of fusing point such as polypropylene fibre for use, and parallel chemical fibre multifilament is selected higher material of fusing point such as polyamide fibre for use.Finalize the design under suitable temperature, the lower monofilament of fusing point appropriateness when typing is crushed, and makes the more side of the filter cloth middle longitude smoother that becomes, and makes by the aperture lessly, and it is close that filter cloth becomes.And setting temperature is far below the fusing point of multifilament material, and the fiber fines when typing in the parallel is unaffected, therefore, little to the intensity effect of multifilament.During work, the monofilament coverage rate is done positive (in the face of filter cake) than the higher side (by calendering), can guarantee higher discharge rate.

Compare with monofilament filter cloth of the prior art, multifilament filter cloth, this has the following advantages after adopting such scheme with utility model:

(1) is interwoven by list, multifilament, both had that multifilament filter cloth density is higher, intensity is bigger Advantage has again the characteristics that the monofilament filter cloth anti-blockage capability is strong, discharge rate is high concurrently.

(2) be relatively smooth surface in the high one side of warp monofilament coverage rate, can guarantee High discharge rate.

Known to the applicant, up to the present the interweave reported in literature of filter cloth of list, multifilament is arranged not yet.

Claims

1. a Silk filtering cloth is characterized in that it is to be interwoven by warp 5 monofilament, parallel 6 multifilament.

2. Silk filtering cloth as claimed in claim 1 is characterized in that its decorative pattern adopts twill.

3. Silk filtering cloth as claimed in claim 1 is characterized in that its warp 5 is the lower chemical fibre monofilament of fusing point, and parallel 6 is the higher chemical fibre multifilament of fusing point.

4. as claim 1,2 or 3 described Silk filtering cloths, it is characterized in that, is relative shiny surface in its warp monofilament 5 coverage rates than higher one side.