CN2203309Y - Filter material for filtering dry spinning solution of polyacrylonitrile - Google Patents
Filter material for filtering dry spinning solution of polyacrylonitrile Download PDFInfo
- Publication number
- CN2203309Y CN2203309Y CN 94215496 CN94215496U CN2203309Y CN 2203309 Y CN2203309 Y CN 2203309Y CN 94215496 CN94215496 CN 94215496 CN 94215496 U CN94215496 U CN 94215496U CN 2203309 Y CN2203309 Y CN 2203309Y
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- filter material
- spinning solution
- dry spinning
- nylon
- filters
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Abstract
The utility model relates to a filter material for filtering dry spinning solution of polyacrylonitrile, which is composed of a nylon fabric protection layer and a filter material base in a middle part. The filter material base is filter paper made by 1-5 layers of pure cotton pulp. The filter material is characterized in high strength, little breakage and small resistance, and the utility model can be used under 70-130DEG. C. Each performance achieves the level of imported product, especially the cost of the utility model is low, and the cost is only sixty percents of the price of the imported product. The utility model can save a great deal of foreign exchange for China and reduce the cost of product, being an ideal new product for substituting the imported product.
Description
The utility model relates to a kind of polyacrylonitrile dry spinning solution filtration filter material.
Domestic several families polyacrylonitrile short fiber of introducing in recent years, the manufacturing enterprise of long filament, all be to adopt dry-spinning process, promptly be that the PAN section is dissolved in the DMF solvent, make concentration and be 32.5 ± 0.6% dry spinning solution, normally carry out for guaranteeing to produce, spinning solution must in the enterprise that several families of imported technology, equipment have gone into operation, all use the filtration that is used for PAN dry spinning solution from the filter material of du pont company import earlier through filtering.This filter material from the du pont company import, main material is to be the filter paper that raw material is made through mechanical paper technology with the cotton pulp, this filter paper, owing to adopted mechanical paper technology, serious to the cotton fiber mechanical damage, cause filter paper intensity low, damaged easily, service time is short, and filtration resistance is big, and cotton fiber is easy to come off, pollute spinning solution, influence spinning quality, especially the price of imported product is very expensive, and delivery cycle is long, and enterprise needs for guaranteeing ordinary production, must stock enough spare unit, drop into a large amount of foreign exchanges, extensive fund can not have enough to meet the need, and product cost is risen.
The purpose of this utility model is to make a kind of intensity height, service time is long, strainability good, and the polyacrylonitrile dry spinning solution of can guarantee that spinning quality, especially price are low, saving foreign exchange, import substitutes filters uses filter material.
The purpose of this utility model is to adopt following technical scheme to realize: the nylon fabrics by two sides is that protective layer and centre are that the 1-5 layer is constituted by the filter paper that raw material hand papermaking method is produced with the cotton linter, forms square sheet filter material.Used filter paper is 100% cotton pulp, and four angles of filter material respectively dash the hole of an equal diameter, and are fixed as one with bundle of lines protective layer and intermediate layer with the method for making all around.
This polyacrylonitrile dry spinning solution filters uses filter material; since use 100% be raw material with cotton linter; adopt hand papermaking technology; the filter paper that cotton fiber is not had the production technology manufacturing of destruction is filter material; and be protective layer with the nylon fabrics, so the intensity height, not cracky, pollution-free to spinning solution, filtration resistance is less, filtering rate can satisfy the production needs.Various indexs all above or reached the performance of du pont company product.Especially price is lower, only is 60% of imported product valency, except that the user saves a large amount of foreign exchanges, also reduces product cost, is a kind of product of comparatively ideal alternative imported goods.
Below in conjunction with accompanying drawing, illustrate that this polyacrylonitrile dry spinning solution filters the structure with filter material.
Fig. 1 is the flat figure of filter material
Fig. 2 is the A-A profile of Fig. 1
Fig. 3 is the B portion enlarged drawing of Fig. 2
As shown in Figure 1, the centre of two protective layers (1) is filter material matrix (2), and filter material is square sheet, and there is the hole, garden (3) of equal diameters at four angles, around sheet, with line (4) filter material is fixed as integral body with lockstitch.
Protective layer (1) is the nylon shioze fabric, can be nylon 6 or nylon 66 long filaments, also can be nylon 6 or nylon 66 short fibers, and when using Tynex, fiber number is the twist of 280-380d silk: warp twist: 7-9/cm filling twist: 7-9/cm. Fabric warp-wise density 220-260 root/10cm, latitudinal density 220-260 root/10cm, fabric intensity warp, broadwise are not less than 1500N/5 * 20cm, when using nylon short fibre, through yarn count: 14-17, weft yarn number: 14-17, yarn twist: be 10-14/cm through weft yarn, Density (warp, broadwise) 130-160 * 130-160 root/10cm, fabric intensity, warp-wise is not less than 1350N/5 * 20cm, and broadwise is not less than 1300N/5 * 20cm. The filter material matrix be the 1-5 layer take cotton linter as raw material, the filter paper that the hand papermaking method is produced, this filter paper is 100% cotton pulp, the quality of individual layer filter paper is
Unit Weight 260-320g/m2
The vertical 13-22N/15mm of intensity
Horizontal 10-18N/15mm
Thickness 0.9-1.6mm
Air permeability 55-801/m
2.S(6mm water column)
Generally do the filter material intermediate layer with 1-5 metafiltration paper
Serviceability temperature is 70-130 ℃
Use on filter, pressure is inlet pressure 2.5mpa
Outlet 0.25mpa
Embodiment:
Filter material is of a size of 800 * 800 * 5mm(to be grown * wide * thick)
Two sides are nylon 6 or nylon 66 filament yarn fabric protective layers
The centre is the cotton linter pulp filter paper that 3 layer of 100% hand papermaking produced
There is the hole, garden of Φ 50mm at four angles of filter material
The structure of Tynex fabric is:
Fiber number 300d, twist 8.5/cm,
230 * 230/10cm of Density (longitude and latitude)
Fabric be not less than 1500N/5 * 20cm through broadwise intensity
When using nylon short fibre, the filling yarn number is 16.5/2 strand, and the twist is 12/cm through weft yarn, 150 * 150/10cm of Density
The centre is three metafiltration paper, and the structure of filter paper is that 100% cotton linter pulp hand papermaking is produced.
Weight per unit area 300g/m
2, thickly be: 1.2-1.5mm
Intensity, vertically 20N/15mm
Horizontal 16N/15mm
Air permeability 55-801/M
2.S(6mmH
2The O post)
Such filter material is 3.5MPa to the maximum in the import of filter operating pressure
Normal pressure is less than 2.5MPa
Outlet pressure is less than 0.25MPa
Filter temperature 70-130 ℃
Be not less than 35 days service time
Such filter material, every factory cost is 65 yuans, and every of imported product is 13 dollars.Close 112.32 yuan of RMB by 1:8.64 calculating.Promptly save 47.32 yuan of RMB for every.The whole nation has five tame enterprises all to adopt the filter material of du pont company import at present, and every factory annual consumption is all more than 8000.With minimum 8000 calculating, 449.28 ten thousand yuan of RMB can be closed less with 520,000 dollars of foreign exchanges every year in the whole nation, save 189.2 ten thousand yuan of RMB.
Claims (7)
1, a kind of polyacrylonitrile dry spinning solution filters and uses filter material; protective layer and middle matrix by two sides are formed; constitute square sheet; respectively there is the hole, garden of an equal diameters at four angles; be fixed as one with bundle of lines protective layer and middle matrix all around; it is characterized in that protective layer is the nylon shioze fabric, middle matrix is that 1-5 layer 100% cotton linter is the filter paper that raw material hand papermaking method is produced.
2, polyacrylonitrile dry spinning solution according to claim 1 filters and uses filter material; it is characterized in that protective layer is nylon 66 or nylon 6 long filament textiless; the fiber number of long filament is 280-380d; yarn twist 7-9/cm; Density, warp-wise 220-260 root/10cm broadwise 220-260 root/10cm.
3, polyacrylonitrile dry spinning solution according to claim 1 filters and uses filter material.It is characterized in that protective layer also can be the spun fabric of nylon 6 or nylon 66, the short fibre yarn number is the 14-17/2 thigh, and the twist is the 10-14/cm Density through weft yarn, is 130-160 root * 130-160 root/10cm through broadwise.
4, polyacrylonitrile dry spinning solution according to claim 1 and 2 filters and uses filter material, it is characterized in that the Tynex fabric of protective layer, and the fiber number of long filament the best is 300d, and the twist is 8.5/cm, and best pck count is 230 * 230/10cm.
5, polyacrylonitrile dry spinning solution according to claim 1 and 2 filters and uses filter material, and the best yarn count that it is characterized in that the nylon staple dimensional fabric of protective layer is 16.5/2 strand.The twist is 12/cm through weft yarn, and best Density is 150 * 150/10cm.
6, polyacrylonitrile dry spinning solution according to claim 1 filters and uses filter material, it is characterized in that cotton pulp filter paper is 300g/M
2, thickness is 1.2-1.5mm, air permeability 55-801/M
2.S(6mm water column).
7, polyacrylonitrile dry spinning solution according to claim 1 filters and uses filter material, the matrix in the middle of it is characterized in that, and the best is that 3 layer of 100% cotton linter is raw material, the filter paper of hand papermaking method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94215496 CN2203309Y (en) | 1994-07-08 | 1994-07-08 | Filter material for filtering dry spinning solution of polyacrylonitrile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94215496 CN2203309Y (en) | 1994-07-08 | 1994-07-08 | Filter material for filtering dry spinning solution of polyacrylonitrile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2203309Y true CN2203309Y (en) | 1995-07-12 |
Family
ID=33831467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94215496 Expired - Fee Related CN2203309Y (en) | 1994-07-08 | 1994-07-08 | Filter material for filtering dry spinning solution of polyacrylonitrile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2203309Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104922977A (en) * | 2015-05-20 | 2015-09-23 | 杭州特种纸业有限公司 | Biological filter paper and method and application thereof |
-
1994
- 1994-07-08 CN CN 94215496 patent/CN2203309Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104922977A (en) * | 2015-05-20 | 2015-09-23 | 杭州特种纸业有限公司 | Biological filter paper and method and application thereof |
| CN104922977B (en) * | 2015-05-20 | 2016-08-03 | 杭州特种纸业有限公司 | Biological filter paper and its preparation method and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |