CN102433761A - Filter cloth with multi-layer compound textile - Google Patents
Filter cloth with multi-layer compound textile Download PDFInfo
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- CN102433761A CN102433761A CN2011102888682A CN201110288868A CN102433761A CN 102433761 A CN102433761 A CN 102433761A CN 2011102888682 A CN2011102888682 A CN 2011102888682A CN 201110288868 A CN201110288868 A CN 201110288868A CN 102433761 A CN102433761 A CN 102433761A
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- fabric
- filter cloth
- nitrogen
- layer compound
- dacron
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Abstract
The invention relates to filter cloth with a multi-layer compound textile. The filter cloth is characterized by being prepared by the following steps: (1) stacking a dacron fabric, a chinlon fabric and a polypropylene fabric in turn, and pressing by using a nonwoven press for 0.8 to 1.2 seconds under the pressure of 0.6-0.8MPa to obtain a compound textile; (2) treating the compound textile in a plasma treatment machine, wherein the discharge frequency of the plasma treatment machine is 20-25kHz, the working gas is nitrogen, and the flow of the nitrogen is 1.5-2m<3>/h; and (3) spraying polytetrafluoroethylene powder on the surface of the dacron fabric of the compound textile by using plasma spraying equipment to obtain the filter cloth with the multi-layer compound textile, wherein the working gas of the plasma spraying equipment is nitrogen, the pressure of the nitrogen is 0.7-0.8MPa, and the spraying speed of the polytetrafluoroethylene powder is 20-50g/min. The filter cloth with the multi-layer compound textile has a good filtering effect and chemical oxygen demand (COD) removing capacity on dyeing and printing industrial wastewater.
Description
Technical field
The present invention relates to a kind of filter cloth that is used to filter textile printing and dyeing wastewater, especially a kind of filter cloth of multi-layer compound fabric.
Background technology
Because low concentration poisonous and harmful organic wastewater in the enterprises such as all kinds of printing and dyeing, textile enterprise, chemical pharmaceutical enterprise, papermaking enterprise, alcohol manufacturing enterprise, food enterprise, chemical fiber factory; Be difficult to carry out advanced treating and reuse; So; The processing that alleviates textile printing and dyeing wastewater through filtration is very important, and simultaneously the filter cloth that uses in the filter process is also had certain requirement.The yarn of different filter clothes constitutes (being divided into monofilament, multifilament, short fibre yarn) to be caused its filtering rate, the transparency of filtrating, unloads cake performance, service life and regenerability and have nothing in common with each other, and yarn of the same race is also being had nothing in common with each other aspect tensile property, anti-wear performance, corrosion resistance, filter cake stripping performance, percentage elongation and elasticity, filtering accuracy, inceptive filtering speed and the regeneration efficiency with the finished product filter cloth that different weaves are made into.
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the prior art, a kind of filter cloth of multi-layer compound fabric is provided, be used for the waste water of advanced treating low concentration, can remove nitrogen, phosphorus in the sewage.
According to technical scheme provided by the invention, a kind of filter cloth of multi-layer compound fabric, characteristic is to adopt following prepared:
(1) dacron, nylon fabric, polypropylene fabric are stacked together successively, send into and carry out pressing on the nonwoven cloth force fit machine, obtain composite fabric, pressing pressure is 0.6～0.8MPa, and pressing time is 0.8～1.2s;
(2) composite fabric was handled in the plasma treatment machine 2～6 seconds, the discharge frequency of plasma treatment machine is 20～25kHz, and working gas is a nitrogen, and the flow of nitrogen is 1.5～2m
3/ h;
(3) adopt plasma spraying equipment spraying polytetrafluorethylepowder powder on the surface of the dacron of composite fabric, obtain the filter cloth of described multi-layer compound fabric; The working gas of said plasma spraying equipment is a nitrogen; The pressure of nitrogen is 0.7～0.8MPa; The spraying rate of polytetrafluorethylepowder powder is 20～50g/min, and the right powder of polytetrafluoroethyl-ne is 0.5～0.8 μ m at the thickness of the polytetrafluorethylecoatings coatings that the surface of dacron forms.
The thickness of said dacron is 0.1～0.12mm.
The thickness of said nylon fabric is 0.13～0.16mm.
The thickness of said polypropylene fabric is 0.03～0.05mm.
Printing and dyeing industrial waste water is had good filter effect to the filter cloth of multi-layer compound fabric of the present invention and COD removes ability.The present invention select to have good percentage elongation and elasticity and antiacid alkali ability but flexibility have nothing in common with each other three kinds of fiber materials, the upper strata of multilayer dielectricity is the thinnest, is used for filtration, below each layer thicker, very solid, for whole medium provides mechanical stability.
The specific embodiment
Below in conjunction with specific embodiment the present invention is described further.
Embodiment one: a kind of filter cloth of multi-layer compound fabric, adopt following prepared:
(1) dacron, nylon fabric, polypropylene fabric are stacked together successively, send into and carry out pressing on the nonwoven cloth force fit machine, obtain composite fabric, pressing pressure is 0.6MPa, and pressing time is 1.2s; The thickness of said dacron is 0.1mm, and the thickness of said nylon fabric is 0.13mm, and the thickness of said polypropylene fabric is 0.03mm;
(2) composite fabric was handled 2 seconds in the plasma treatment machine, the discharge frequency of plasma treatment machine is 25kHz, and working gas is a nitrogen, and the flow of nitrogen is 1.5m
3/ h;
(3) adopt plasma spraying equipment spraying polytetrafluorethylepowder powder on the surface of the dacron of composite fabric, obtain the filter cloth of described multi-layer compound fabric; The working gas of said plasma spraying equipment is a nitrogen, and the pressure of nitrogen is 0.7MPa, and the spraying rate of polytetrafluorethylepowder powder is 20g/min, and the right powder of polytetrafluoroethyl-ne is 0.5 μ m at the thickness of the polytetrafluorethylecoatings coatings that the surface of dacron forms.
Embodiment two: a kind of filter cloth of multi-layer compound fabric, adopt following prepared:
(1) dacron, nylon fabric, polypropylene fabric are stacked together successively, send into and carry out pressing on the nonwoven cloth force fit machine, obtain composite fabric, pressing pressure is 0.8MPa, and pressing time is 0.8s; The thickness of said dacron is 0.12mm, and the thickness of said nylon fabric is 0.16mm, and the thickness of said polypropylene fabric is 0.05mm;
(2) composite fabric was handled 6 seconds in the plasma treatment machine, the discharge frequency of plasma treatment machine is 20kHz, and working gas is a nitrogen, and the flow of nitrogen is 2m
3/ h;
(3) adopt plasma spraying equipment spraying polytetrafluorethylepowder powder on the surface of the dacron of composite fabric, obtain the filter cloth of described multi-layer compound fabric; The working gas of said plasma spraying equipment is a nitrogen, and the pressure of nitrogen is 0.8MPa, and the spraying rate of polytetrafluorethylepowder powder is 50g/min, and the right powder of polytetrafluoroethyl-ne is 0.8 μ m at the thickness of the polytetrafluorethylecoatings coatings that the surface of dacron forms.
Embodiment three: a kind of filter cloth of multi-layer compound fabric, adopt following prepared:
(1) dacron, nylon fabric, polypropylene fabric are stacked together successively, send into and carry out pressing on the nonwoven cloth force fit machine, obtain composite fabric, pressing pressure is 0.7MPa, and pressing time is 1s; The thickness of said dacron is 0.11mm, and the thickness of said nylon fabric is 0.14mm, and the thickness of said polypropylene fabric is 0.04mm;
(2) composite fabric was handled 3 seconds in the plasma treatment machine, the discharge frequency of plasma treatment machine is 22kHz, and working gas is a nitrogen, and the flow of nitrogen is 1.6m
3/ h;
(3) adopt plasma spraying equipment spraying polytetrafluorethylepowder powder on the surface of the dacron of composite fabric, obtain the filter cloth of described multi-layer compound fabric; The working gas of said plasma spraying equipment is a nitrogen, and the pressure of nitrogen is 0.75MPa, and the spraying rate of polytetrafluorethylepowder powder is 30g/min, and the right powder of polytetrafluoroethyl-ne is 0.6 μ m at the thickness of the polytetrafluorethylecoatings coatings that the surface of dacron forms.
Embodiment four: a kind of filter cloth of multi-layer compound fabric, adopt following prepared:
(1) dacron, nylon fabric, polypropylene fabric are stacked together successively, send into and carry out pressing on the nonwoven cloth force fit machine, obtain composite fabric, pressing pressure is 0.65MPa, and pressing time is 0.9s; The thickness of said dacron is 0.11mm, and the thickness of said nylon fabric is 0.15mm, and the thickness of said polypropylene fabric is 0.035mm;
(2) composite fabric was handled 4 seconds in the plasma treatment machine, the discharge frequency of plasma treatment machine is 24kHz, and working gas is a nitrogen, and the flow of nitrogen is 1.8m
3/ h;
(3) adopt plasma spraying equipment spraying polytetrafluorethylepowder powder on the surface of the dacron of composite fabric, obtain the filter cloth of described multi-layer compound fabric; The working gas of said plasma spraying equipment is a nitrogen, and the pressure of nitrogen is 0.76MPa, and the spraying rate of polytetrafluorethylepowder powder is 40g/min, and the right powder of polytetrafluoroethyl-ne is 0.7 μ m at the thickness of the polytetrafluorethylecoatings coatings that the surface of dacron forms.
It is as shown in table 1 to use filter cloth that various embodiments of the present invention obtain that textile printing and dyeing wastewater is tentatively filtered forward and backward waste water index.
Table 1
By finding out in the table 1, printing and dyeing industrial waste water is had good filter effect to filter cloth of the present invention and COD removes ability.
Claims (4)
1. the filter cloth of a multi-layer compound fabric is characterized in that, adopts following prepared:
(1) dacron, nylon fabric, polypropylene fabric are stacked together successively, send into and carry out pressing on the nonwoven cloth force fit machine, obtain composite fabric, pressing pressure is 0.6～0.8MPa, and pressing time is 0.8～1.2s;
(2) composite fabric was handled in the plasma treatment machine 2～6 seconds, the discharge frequency of plasma treatment machine is 20～25kHz, and working gas is a nitrogen, and the flow of nitrogen is 1.5～2m
3/ h;
(3) adopt plasma spraying equipment spraying polytetrafluorethylepowder powder on the surface of the dacron of composite fabric, obtain the filter cloth of described multi-layer compound fabric; The working gas of said plasma spraying equipment is a nitrogen; The pressure of nitrogen is 0.7～0.8 MPa; The spraying rate of polytetrafluorethylepowder powder is 20～50g/min, and the right powder of polytetrafluoroethyl-ne is 0.5～0.8 μ m at the thickness of the polytetrafluorethylecoatings coatings that the surface of dacron forms.
2. the filter cloth of multi-layer compound fabric as claimed in claim 1, it is characterized in that: the thickness of said dacron is 0.1～0.12mm.
3. the filter cloth of multi-layer compound fabric as claimed in claim 1, it is characterized in that: the thickness of said nylon fabric is 0.13～0.16mm.
4. the filter cloth of multi-layer compound fabric as claimed in claim 1, it is characterized in that: the thickness of said polypropylene fabric is 0.03～0.05mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110288868 CN102433761B (en) | 2011-09-26 | 2011-09-26 | Filter cloth with multi-layer compound textile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110288868 CN102433761B (en) | 2011-09-26 | 2011-09-26 | Filter cloth with multi-layer compound textile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102433761A true CN102433761A (en) | 2012-05-02 |
| CN102433761B CN102433761B (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110288868 Expired - Fee Related CN102433761B (en) | 2011-09-26 | 2011-09-26 | Filter cloth with multi-layer compound textile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110202875A (en) * | 2019-07-09 | 2019-09-06 | 江苏瀚霆环保滤材有限公司 | A kind of blast furnace gas Nomex for steel production |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101637679A (en) * | 2009-08-25 | 2010-02-03 | 江南大学 | Method for preparing antibacterial filter screen |
| CN101716442A (en) * | 2008-10-10 | 2010-06-02 | 东丽纤维研究所（中国）有限公司 | Industrial filtering cloth used for liquid filter and application |
| CN101920138A (en) * | 2009-06-10 | 2010-12-22 | 东丽纤维研究所（中国）有限公司 | Filtering material and application thereof |
-
2011
- 2011-09-26 CN CN 201110288868 patent/CN102433761B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716442A (en) * | 2008-10-10 | 2010-06-02 | 东丽纤维研究所（中国）有限公司 | Industrial filtering cloth used for liquid filter and application |
| CN101920138A (en) * | 2009-06-10 | 2010-12-22 | 东丽纤维研究所（中国）有限公司 | Filtering material and application thereof |
| CN101637679A (en) * | 2009-08-25 | 2010-02-03 | 江南大学 | Method for preparing antibacterial filter screen |
Non-Patent Citations (1)
| Title |
|---|
| 谭蔚等: "机织滤布的生产与使用", 《化工进展》, vol. 21, no. 6, 31 December 2002 (2002-12-31), pages 421 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110202875A (en) * | 2019-07-09 | 2019-09-06 | 江苏瀚霆环保滤材有限公司 | A kind of blast furnace gas Nomex for steel production |
| CN110202875B (en) * | 2019-07-09 | 2024-03-29 | 江苏瀚霆环保滤材有限公司 | Needled felt for blast furnace gas for steel production |
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| Publication number | Publication date |
|---|---|
| CN102433761B (en) | 2013-06-05 |
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Effective date of registration: 20180726 Address after: 213025 the standard workshop of Hutang science and Technology Industrial Park Industrial Park, Hutang Town, Wujin District, Changzhou, Jiangsu Patentee after: Jiangsu Tian dyeing workshop Textile Technology Co., Ltd. Address before: 214192 Xiangyun 2, 202, Furong three road, Xishan Economic Development Zone, Xishan District, Wuxi, Jiangsu, China, 202 Patentee before: Wuxi Taida Textile Technology Co., Ltd. |
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Granted publication date: 20130605 Termination date: 20180926 |