CN102500163B - Nanometer anti-sticking filtering cloth - Google Patents
Nanometer anti-sticking filtering cloth Download PDFInfo
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- CN102500163B CN102500163B CN201110356994.7A CN201110356994A CN102500163B CN 102500163 B CN102500163 B CN 102500163B CN 201110356994 A CN201110356994 A CN 201110356994A CN 102500163 B CN102500163 B CN 102500163B
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- filtering cloth
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Abstract
A piece of nanometer anti-sticking filtering cloth is provided specially for purification and smelting process in metallurgical industry and is an industrial small-aperture filtering cloth used for filtering particles with sizes smaller than five micrometers. The nanometer anti-sticking filtering cloth is manufactured through the processes as follows: a, wire drawing, b, twisting, c, fabric manufacture, d, after finishing and the like. The nanometer anti-sticking filtering cloth is novel filtering cloth which is made of material with stable physical and chemical properties, manufactured through manufacturing technologies of wire drawing, warping, fabric manufacture, shaping and press polishing, and applied to the filtration and separation technology. The product integrates three processes, namely shaping, press polishing and emulsion coating, so that production cost is reduced, energy consumption is reduced, and labor intensity of workers is reduced. The product provided by the invention has the advantages that the product needs to be cleaned only after being used constantly for 30 days, so that the service cycle of the filtering cloth is prolonged; and polytetrafluoroethylene emulsion is applied on the surface of the filtering cloth, so that the surface of the filtering cloth is smooth and is not adhered with filter cakes, apertures of the filtering cloth are not easily blocked, and the service life of the filtering cloth is greatly improved.
Description
Technical field
The present invention relates to textile technology field, in particular for the filter cloth of the fine particle of smart smelting procedure, is a kind of nanometer anti-sticking filtering cloth specifically.
Background technology
In the filter plant of use filter cloth, filter cloth is the heart of filter plant, if do not have filter cloth just cannot realize the filtration work of Separation of Solid and Liquid, air cleaning.Purifying at metallurgy industry the filter medium using in smart smelting procedure is mostly the traditional Woven filter cloth of P840AB, the P4147 etc. of bubbling aperture more than 50 microns, these products exist in use and run more, the leakage phenomenon of material, when cake discharge, filter cake and filter cloth are inter-adhesive and be difficult for cake discharge, and after use couple of days, must unload sheet frame because of aperture obstruction cleans, increase workman's labour intensity, reduced filter cloth service life.
Summary of the invention
Technical problem to be solved by this invention is that existing filter medium exists in use and runs material, leakage, prevents filter cake and filter cloth adhesion and be difficult for the problems such as cake discharge, thus provide a kind of efficient, energy-conservation, durable, physical and chemical performance stablize and prevent filter cake adhesion for filtering the nanometer anti-sticking filtering cloth of fine particle.
The present invention solves its technical problem by following technical proposals:
A kind of nanometer anti-sticking filtering cloth, is characterized in that being prepared from by following processing step:
A wire drawing:
First wire drawing machine is warming up to 250-270 DEG C, 50kg polypropylene is added to suction bucket, after melting, extruded by sieve bar, carry out drawing-off through cooling bath, enter again 150-160 DEG C of air heat case and carry out being wound up on bobbin after secondary drawing-off, obtain the monofilament of 0.13mm-0.20mm;
B warp thread: by monofilament by the length arrangement of technological requirement on yarn bobbin, and be poured in warp beam;
C weaves: whole good beam of a loom is inserted to machine on reed through gaiting, warp, weft yarn are made into monofilament cloth: warp thread adopts the monofilament of 0.13mm-0.20mm, through close be 210-230 piece/inch, weft yarn is selected 450D-840D polypropylene fibre multifilament, inweave by projectile shuttle, the density of beating up is 28-45 piece/inch, and fabric tissue adopts 4/4 twill;
After d, arrange: rear arrangement comprises mending, sizing and calendering, and monofilament cloth is pruned, and rejects fault and impurity, the also calendering of shape on calender of the monofilament cloth after pruning, applies content simultaneously and is 20% ptfe emulsion, and concrete operations are as follows:
D.1 calender heats up: calender temperature is made as to 135 DEG C, starts intensification switch and heat up;
D.2. allocate emulsion: concentrated polytetrafluoroethylene (PTFE) dispersion emulsion and demineralized water are mixed at normal temperatures and stirred with the ratio of 1:2, pour glue groove into stand-by;
D.3. emulsion absorption: after 135 DEG C of temperature that reach setting until calender temperature, the monofilament cloth after pruning is launched, enter that glue groove is drawn glue and after compression roller, enter calender after singeing fire hole will glue be dried;
D.4. calendering, is controlled at 8-9kg by calender pressure, and speed is controlled at 9-15mm/r, starts calender and carries out calendering, and filter cloth aperture is controlled to 40-60 μ m.
Nanometer anti-sticking filtering cloth of the present invention, be specially purify for metallurgy industry that smart smelting procedure provides for filtering the industrial filter cloths of small-bore of 5 microns of following particles, the present invention selects the stable material of physical and chemical performance, through wire drawing, warping, weave and shape after again the production technology of calendering make and apply to filter and the Novel filtration cloth of isolation technics, sizing, calendering and three operations of coating emulsion are merged into an operation by this product, reduce production cost, save energy resource consumption, reduced labor strength.Product of the present invention just needs to clean after using 30 days continuously, filter cloth life cycle is elongated. because having applied ptfe emulsion, filter cloth surface makes filtering surface smooth surface, and filter cloth surface no longer with filter cake adhesion, filter cloth aperture is difficult for mending to be stopped up, and has greatly increased service life of filter cloth.
Detailed description of the invention
Embodiment 1
1, wire drawing:
First wire drawing machine is warming up to 250 DEG C, 50kg polypropylene is added to suction bucket, start material sucking valve, by after polypropylene fusion, extrude from 230 pores of spinneret through sieve bar, become melt silk; Then be cooled into solid filament; Carry out drawing-off through cooling bath, then be wound up on bobbin after entering the air heat case of 150 DEG C and carrying out secondary drawing-off, obtain the monofilament of 0.13mm;
2, warp thread: by sectional warper, monofilament is fitly arranged on yarn bobbin by the length of technological requirement, and is poured on request in warp beam.
3, weave: whole good beam of a loom is inserted to machine on reed through gaiting, warp, weft yarn are by being made into monofilament cloth on P7100 Sulzer sheet woven fabric machine, at this therebetween, according to technological requirement, warp thread adopts the monofilament of 0.13mm, through close be 230 pieces/inch, weft yarn is selected 450D polypropylene fibre multifilament, inweave by projectile shuttle list latitude, the density of beating up is 45 pieces/inch, and fabric tissue adopts 4/4 twill.
4, rear arrangement: rear arrangement comprises mending, sizing and calendering, and the monofilament cloth of fetching from loom, also leaves fault and impurity, in order to improve appearance of fabrics, to reject fault, guarantee product quality must be repaired monofilament cloth.Monofilament cloth after finishing also will be shaped, and this is the percent thermal shrinkage in order to reduce monofilament cloth, and guarantee product is stablized indeformable in use.This process is carried out on forming machine.Calendering is higher than polyacrylic vitrification point in the situation that, makes fiber in elastomeric state, and macromolecular arrangement form is reorganized, and then reduces temperature and makes fiber recovery to glassy state, and large intermolecular arrangement is just interosculated fixing on new position.In calendering, adopt special technique to add nano level talcum powder or PTFE emulsion, what can make like this that this product becomes by rough surface is smooth, and makes product in use become in-depth filtration from surface filtration.Be easy in use cake discharge, reduced workman's labour intensity, increased production efficiency.
Concrete operations are as follows:
(1) calender heats up: calender temperature is made as to 135 DEG C, starts intensification switch and heat up;
(2) allotment emulsion: the concentrated dispersion emulsion 10kg of polytetrafluoroethylene (PTFE) and demineralized water that market is bought mix at normal temperatures and stir with 20kg, pour glue groove into stand-by;
(3) emulsion absorption: after 135 DEG C of temperature that reach setting until calender temperature, the monofilament cloth after pruning is launched slowly through leading out roller, enter that glue groove is drawn glue and after compression roller, enter calender after singeing fire hole will glue be dried;
(4) calendering, is controlled at 8kg by calender pressure, and speed is controlled at 12mm/r, starts calender and carries out calendering, and filter cloth aperture is controlled to 60 μ m.
Embodiment 2
1, wire drawing:
First wire drawing machine is warming up to 270 DEG C, 50kg polypropylene is added to suction bucket, start material sucking valve, by after polypropylene fusion, extrude from 230 pores of spinneret through sieve bar, become melt silk; Then be cooled into solid filament; Carry out drawing-off through cooling bath, then be wound up on bobbin after entering the air heat case of 160 DEG C and carrying out secondary drawing-off, obtain the monofilament of 0.20mm;
2, warp thread: by sectional warper, monofilament is fitly arranged on yarn bobbin by the length of technological requirement, and is poured on request in warp beam.
3, weave: whole good beam of a loom is inserted to machine on reed through gaiting, warp, weft yarn are by being made into monofilament cloth on P7100 Sulzer sheet woven fabric machine, at this therebetween, according to technological requirement, warp thread adopts the monofilament of 0.20mm, through close be 210 pieces/inch, weft yarn is selected 840D polypropylene fibre multifilament, inweave by projectile shuttle double weft, the density of beating up is 28 pieces/inch, and fabric tissue adopts 4/4 twill;
4, rear arrangement: rear arrangement comprises mending, sizing and calendering, and the monofilament cloth of fetching from loom, also leaves fault and impurity, in order to improve appearance of fabrics, to reject fault, guarantee product quality must be repaired monofilament cloth.Monofilament cloth after finishing also will be shaped, and this is the percent thermal shrinkage in order to reduce monofilament cloth, and guarantee product is stablized indeformable in use.This process is carried out on forming machine.Calendering is higher than polyacrylic vitrification point in the situation that, makes fiber in elastomeric state, and macromolecular arrangement form is reorganized, and then reduces temperature and makes fiber recovery to glassy state, and large intermolecular arrangement is just interosculated fixing on new position.In calendering, adopt special technique to add nano level talcum powder or PTFE emulsion, what can make like this that this product becomes by rough surface is smooth, and makes product in use become in-depth filtration from surface filtration.Be easy in use cake discharge, reduced workman's labour intensity, increased production efficiency.
Concrete operations are as follows:
(1) calender heats up: calender temperature is made as to 135 DEG C, starts intensification switch and heat up;
(2) allotment emulsion: the concentrated dispersion emulsion 15kg of polytetrafluoroethylene (PTFE) and demineralized water 30kg that market is bought mix at normal temperatures and stir, and pour glue groove into stand-by;
(3) emulsion absorption: after 135 DEG C of temperature that reach setting until calender temperature, the monofilament cloth after pruning is launched slowly through leading out roller, enter that glue groove is drawn glue and after compression roller, enter calender after singeing fire hole will glue be dried;
(4) calendering, is controlled at 9kg by calender pressure, and speed is controlled at 15mm/r, starts calender and carries out calendering, and filter cloth aperture is controlled to 40 μ m.
Claims (1)
1. a nanometer anti-sticking filtering cloth, is characterized in that being prepared from by following processing step:
A wire drawing:
First wire drawing machine is warming up to 250-270 DEG C, polypropylene is added to suction bucket, after melting, extruded by sieve bar, carry out drawing-off through cooling bath, the air heat case that enters again 150-160 DEG C carries out being wound up on bobbin after secondary drawing-off, obtains the monofilament of 0.13mm-0.20mm;
B warp thread: by monofilament by the length arrangement of technological requirement on yarn bobbin, and be poured in warp beam;
C weaves: whole good beam of a loom is inserted to machine on reed through gaiting, and warp, weft yarn are made into monofilament cloth:
Warp thread adopts the monofilament of 0.13mm-0.20mm, through close be 210-230 piece/inch, weft yarn is selected 450D-840D polypropylene fibre multifilament, inweaves by projectile shuttle, the density of beating up is 28-45 piece/inch, fabric tissue adopts 4/4 twill;
After d, arrange: rear arrangement comprises mending, sizing and calendering, and monofilament cloth is pruned, and rejects fault and impurity, the also calendering of shape on calender of the monofilament cloth after pruning, applies content simultaneously and is 20% ptfe emulsion, and concrete operations are as follows:
D.1 calender heats up: calender temperature is made as to 135 DEG C, starts intensification switch and heat up;
D.2. allocate emulsion: concentrated polytetrafluoroethylene (PTFE) dispersion emulsion and demineralized water are mixed at normal temperatures and stirred with the ratio of 1:2, pour glue groove into stand-by;
D.3. emulsion absorption: after 135 DEG C of temperature that reach setting until calender temperature, the monofilament cloth after pruning is launched, enter that glue groove is drawn glue and after compression roller, enter calender after singeing fire hole will glue be dried;
D.4. calendering, is controlled at 8-9kg by calender pressure, and speed is controlled at 12-15mm/r, starts calender and carries out calendering, and filter cloth aperture is controlled to 40-60 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110356994.7A CN102500163B (en) | 2011-11-11 | 2011-11-11 | Nanometer anti-sticking filtering cloth |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110356994.7A CN102500163B (en) | 2011-11-11 | 2011-11-11 | Nanometer anti-sticking filtering cloth |
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| CN102500163A CN102500163A (en) | 2012-06-20 |
| CN102500163B true CN102500163B (en) | 2014-07-23 |
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| CN201110356994.7A Active CN102500163B (en) | 2011-11-11 | 2011-11-11 | Nanometer anti-sticking filtering cloth |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102873890B (en) * | 2012-10-11 | 2014-12-17 | 昊辰（无锡）塑业有限公司 | Preparation method of polyethylene polymer composite membrane |
| CN104511209A (en) * | 2014-11-27 | 2015-04-15 | 安徽省太和县众友筛网滤布制造有限公司 | Industrial filter cloth production process |
| CN104514069B (en) * | 2014-11-27 | 2016-10-05 | 安徽省太和县众友筛网滤布制造有限公司 | A kind of high temperature resistant industrial filter cloth production technology |
| CN105401304A (en) * | 2015-12-15 | 2016-03-16 | 张掖市西龙产业用纺织品有限公司 | Single multifilament filter cloth and preparation method for same |
| CN106215510A (en) * | 2016-08-16 | 2016-12-14 | 大连华隆滤布有限公司 | Steel-making sheet frame dewaterer filter cloth |
| CN106968113B (en) * | 2017-03-24 | 2019-03-29 | 青岛博时阻燃织物有限公司 | A kind of production technology of flame-retardant wall blanket |
| CN108176175B (en) * | 2017-12-29 | 2020-07-03 | 武汉斯特蓝科技发展有限公司 | Energy-saving environment-friendly high-pressure non-blocking water curtain cabinet and waste gas and waste residue treatment method thereof |
| CN115262060A (en) * | 2022-08-19 | 2022-11-01 | 刘海燕 | Fluorine-containing monofilament filter cloth and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202020970U (en) * | 2010-12-09 | 2011-11-02 | 江苏博奥滤料有限公司 | Needling filter material |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202020970U (en) * | 2010-12-09 | 2011-11-02 | 江苏博奥滤料有限公司 | Needling filter material |
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