CN207672333U - A kind of candle filter filter cloth - Google Patents

Abstract

The utility model provides a kind of candle filter filter cloth, warp thread（1）And weft yarn（2）Using two undertissues arrangement on two, it is characterised in that：The warp thread（1）By the p-aramid fiber long filament that do not twist（11）It twists thread with p-aramid fiber long filament（12）According to 1:1 is alternately arranged, the weft yarn（2）It is twisted thread by p-aramid fiber long filament（21）With p-aramid fiber spun yarn line（22）According to 1:1 is alternately arranged.Compared with prior art, also yarn is made through spinning using short fibre in the utility model, and Yarn filoplume is high, can effectively capture solid particle, controls filter efficiency；Color silk is added in primary colors silk, is conducive to cut out sewing.

Description

A kind of candle filter filter cloth

Technical field

The utility model is related to material solid-liquid separation technique fields, and in particular to a kind of candle filter filter cloth.

Background technology

P-aramid fiber is the Typical Representative of high-performance fiber, and specific strength is 5~6 times of steel wire, specific modulus be steel wire or 2~3 times of glass, toughness is 2 times of steel wire, and weight is only 1/5 of steel wire or so, can be within the scope of -196 DEG C to 204 DEG C Longtime running and the fluctuating temperatures of 250 DEG C of moments repeatedly can be born, not decomposed at a high temperature of 500 DEG C, while there is ruler Very little stability, percent thermal shrinkage at a temperature of 250 DEG C only less than 1% have splendid high-temperature stability；It is good resistance to Chemical property will not impact it in the soda acid of low concentration and most of hydrocarbons, even if a small amount of fluoride It will not significantly be corroded, cleaned in various manners convenient for adopting.In addition p-aramid fiber highly crystalline is orientated, fiber surface light It is sliding, therefore can be yet easy successfully to clean up and reuse in subsequent filter cloth cleaning process.In addition, compared to Carbon fiber, glass fibre, the high performance fibers such as basalt fibre, p-aramid fiber is toughness organic fiber, more soft, can be repeatedly Cleaning, and carbon fiber, glass fibre and basalt fibre are as brittle inorganic fiber, it is in use, easily past in filter bag Returning in expansion and cleaning process causes fiber weakness to be broken, and leads to performance loss, influences the performance and service life of product. In addition, opposite carbon fiber contour energy fiber, para-aramid fiber kind is numerous, and only precursor multifilament can be divided into different model, such as 1000D/500f, 1000D/667f, 1000D/1000f, 1500D/1000f etc., filament denier are in 1D~4D.Contraposition virtue Synthetic fibre is in addition to primary colors（Glassy yellow）Fiber, Yantai Tayho Advanced Materials Co., Ltd.'s independent research are prepared by original liquid coloring technique Go out the colors silk such as black, red, green black colour, blue, not yet finds that para-aramid fiber is applied to candle filter by the country at present With the precedent of filter cloth.

Candle filter is to reach ideal filter effect by " cake layer " filtering formed on filter bag.When " cake layer " When more than certain thickness, filter efficiency is deteriorated, and need to remove and build new " cake layer ", start the filter cycle of a new round. Remove to carry out during " cake layer " repeatedly be blown into compressed air and exhaust process, expansion to keep filter bag round-trip is returned Contracting achievees the purpose that remove filter bag surface filter cake, therefore there are certain requirements to the gas permeability and intensity of filter cloth.Current filter is fine Dimension mainly has cotton, hair, metallic fiber, glass fibre and terylene, polyvinyl, polypropylene fibre etc., the heat resistance of these fibers, chemicals-resistant Property, strength and elongation etc. have very big difference.Traditional fibre filter cloth is easily so that filter cloth hole becomes during frequent filtration operation Small, filter cloth blocks, filter efficiency reduces, the filter cloth replacement cycle shortens, filter cloth service life is reduced, filter cloth not easy cleaning, Cause to filter production efficiency decline and production cost rises, having been unable to meet the filtering of current food, medicine and chemical industry needs It asks.

A kind of monofilament woven nets of 103007629 A of patent CN are that the high temperature resistant nonwoven filtration cloth of base fabric and manufacturing method are adopted It is made of base cloth layer and filter layer with taking, the short basalt fiber for choosing 100% prepares 6 monfil of non-woven fabrics polyamide fibre as machine Although knitmesh, the manufacturing method solve that the single Woven filter cloth filter efficiency of tradition is not high, be easily deformed, insufficient strength, easily In damaged problem, but this kind of mode considerably increases weaving cost and technology difficulty, at the same its bearing strength still far away from Aramid fiber filter cloth.

104452026 A of patent CN are a kind of using filter cloth in the woven industrial filter cloth of wrap yarn and its preparation and application Use warp thread twisted for 2 0.15 monofilament of Φ and 1 1000D multifilament；Weft yarn is 3 0.25 monofilament of Φ and 1300D multifilament Prepared by the wrap yarn of composition, the close looping of outer layer multifilament ensure that fabric size is stablized, and strength is high.The outer layer choosing of wrap yarn With multifilament, the filtering accuracy of fabric is greatly improved.But since wrap yarn is made of heart yarn and two part of outer layer yarn, produce Outer layer yarn is mainly constantly rotated and is wrapped in by the heart yarn of at the uniform velocity drawing-off and is formed by process, between heart yarn and outer layer yarn Gap can adsorb thinner filtering particle in filter process and result in blockage, so that filter plant is can not operate normally.

Utility model content

The purpose of this utility model is to provide a kind of candle filter filter cloth, to solve traditional filtering cloth filter effect The problems such as difference, service life is short, and replacement frequency is high.

A kind of candle filter filter cloth, warp thread 1 and weft yarn 2 use two undertissues arrangement on two, it is characterised in that：Institute The warp thread 1 stated twists thread 12 according to 1 by the p-aramid fiber long filament 11 and p-aramid fiber long filament that do not twist:1 is alternately arranged, described Weft yarn 2 by p-aramid fiber long filament twist thread 21 and p-aramid fiber spun yarn line 22 according to 1:1 is alternately arranged.

Further, the density of warp thread and weft yarn is 80/10cm ~ 250 piece/10cm.

Further, one or two can be added in required position through weft yarn and include the colors silks such as black, red or green black colour, Other warp thread and weft yarn are primary colors silk.

Further, also in the side single side coated with PTFE filter membrane of filter cloth.

The utility model is this can either to undertake filtering function by the filter cloth of raw material of p-aramid fiber, and can ensure strong Degree, while also there is excellent high temperature resistance, it still can continuously be worked normally in the environment of -200 DEG C~200 DEG C；And it aligns Aramid yarn and the p-aramid fiber woven fabric for composition of twisting thread have fracture strength and dimensional stability higher than conventional woven fabric.It is special Not suitable for the filtration operation of the industries worst hot case condition such as food, medicine.

Compared with prior art, also yarn is made through spinning using short fibre in the utility model, and Yarn filoplume is high, can effectively catch Solid particle is caught, filter efficiency is controlled；Color silk is added in primary colors silk, is conducive to cut out sewing.

Description of the drawings

Fig. 1 is the institutional framework schematic diagram of the utility model.

Specific implementation mode

Referring to attached drawing, a kind of candle filter filter cloth, warp thread 1 and weft yarn 2 use two undertissues arrangement on two, special Sign is：The warp thread 1 is by the 1000D/667f p-aramid fibers long filament 11 and 1000D/667f p-aramid fiber long filaments do not twisted 12 are twisted thread according to 1:1 is alternately arranged, and the weft yarn 2 is twisted thread 21 and 1.5D51mm pairs by 1000D/667f p-aramid fiber long filaments The aramid fiber short fine 12S yarns 22 prepared in position are according to 1:1 is alternately arranged.The density of its warp thread and weft yarn is 145/10cm.It is passing through The positions 4cm introduce 1000D/667f black p-aramid fibers and twist thread more than yarn both sides, identify filter cloth sewing position, are stitched in this way in the later stage It ensure that filter cloth overall dimensions have overall stability during system.

Its production stage is：

1. raw material preparation, selection and prepares raw material, warp-wise is twisted thread using 1000D/667f p-aramid fibers and 12 and is not twisted 1000D/667f p-aramid fibers long filament 11 is according to according to 1:1 is alternately arranged, and broadwise aligns fragrant long filament synthetic fibre using 1000D/667f and twists Line 21 and the short fine 12S yarns 22 prepared of 1.5D51mm p-aramid fibers are according to 1:1 is weaved alternately as weft yarn, the twist of twisting thread It it is 50 ± 10 twists/m, wherein mainly proof strength of twisting thread, yarn mainly improves its filter efficiency using its filoplume.

2. carrying out warping using sectional warper, ensure warp tension, weave warp-wise 200/10cm of density, to ensure Uniformity after dimensional stability and filter cloth sewing, according to filter cloth size in warping, the positions 4cm introduce more than the warp thread both sides 1000D/667f red p-aramid fibers are twisted thread, and identify filter cloth sewing position, while can be appropriate in broadwise according to filtering cloth length Position introduces 1000D/667f black p-aramid fiber long filaments, and mark filtering cloth length cuts position, ensures later stage batch filter cloth Dimensional stability,

3. being weaved using rapier loom, 150/10cm of latitudinal density makees tissue weaving, breadth with cassimere twill 1000 ± 10mm, 0.80 ± 0.05mm of thickness.

4. drying, thermal finalization, 250 DEG C of setting temperature, 4-5 ms/min of sizing speed.

Virtue is aligned using Yantai Tai Pulong advanced manufacturing technologies Co., Ltd company standard Q/0601 TPL001-2016 Synthetic fibre woven fabric is detected, as a result as follows：

Although the foregoing describe specific embodiment of the present utility model, those familiar with the art answers Working as understanding, we are merely exemplary described specific embodiment, rather than for the limit to the scope of the utility model Fixed, those skilled in the art modification and variation equivalent made by the spirit according to the utility model all should Cover in the scope of the claimed protection of the utility model.

Claims (4)

1. a kind of candle filter filter cloth, warp thread（1）1 and weft yarn（2）Existed using the arrangement of two undertissues, feature on two In：The warp thread（1）By the p-aramid fiber long filament that do not twist（11）It twists thread with p-aramid fiber long filament（12）According to 1:1 alternating Arrangement, the weft yarn（2）It is twisted thread by p-aramid fiber long filament（21）With p-aramid fiber spun yarn line（22）According to 1:1 alternately arranges Row.

2. a kind of candle filter filter cloth according to claim 1, it is characterised in that：The density of its warp thread and weft yarn is 80/10cm ~ 250 piece/10cm.

3. a kind of candle filter filter cloth according to claim 1, it is characterised in that：It is added with one or two through weft yarn Root includes black, red or green black colour color silk, other warp thread and weft yarn are primary colors silk.

4. a kind of candle filter filter cloth according to claim 1, it is characterised in that：The side single side of the filter cloth applies It is covered with PTFE filter membranes.