CN113018983A - Filter screen based on metal wire - Google Patents
Filter screen based on metal wire Download PDFInfo
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- CN113018983A CN113018983A CN202110263242.XA CN202110263242A CN113018983A CN 113018983 A CN113018983 A CN 113018983A CN 202110263242 A CN202110263242 A CN 202110263242A CN 113018983 A CN113018983 A CN 113018983A
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- China
- Prior art keywords
- filter screen
- wire
- warp
- metal wire
- weft
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Links
- 229910052751 metal Inorganic materials 0.000 title abstract description 35
- 239000002184 metal Substances 0.000 title abstract description 35
- 238000001914 filtration Methods 0.000 claims abstract description 20
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 7
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 14
- 238000009941 weaving Methods 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 238000003825 pressing Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000004451 qualitative analysis Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/10—Filter screens essentially made of metal
- B01D39/12—Filter screens essentially made of metal of wire gauze; of knitted wire; of expanded metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Abstract
The invention belongs to the technical field of filter equipment and discloses a filter screen based on metal wires. The metal wire-based filter screen is a twill woven mesh consisting of warps and wefts, wherein the diameters of the warps are larger than those of the wefts, and the number of the wefts is more than that of the warps. The filter screen based on the metal wires has the outstanding characteristics of high filtering precision, stable filtering effect and difficult deformation, and can fully adapt to the filtering requirements in an actual laboratory.
Description
Technical Field
The invention belongs to the technical field of filter equipment, and particularly relates to a metal wire-based filter screen.
Background
The filter paper is a paper with good filtering performance, is loose, and has strong liquid absorption performance. Analytical laboratories often use filter paper as the filtration medium to separate the solution from the solid. The filter paper produced in China mainly comprises three types, namely quantitative analysis filter paper, qualitative analysis filter paper and chromatography qualitative analysis filter paper. Both the concepts of quantitative and qualitative filter paper are unique to cellulose filter paper, and qualitative filter paper is used for qualitative chemical analysis and corresponding filtration separation. However, the above filter paper has the following disadvantages: 1. all are disposable products, and can not be reused; 2. high temperature resistance or strong acid and alkali resistance; 3. the filter paper has low mechanical strength and toughness, and thus has poor mechanical stability and filtration precision.
Aiming at the defects, the metal wire filter screen products are produced on the market by adopting metal wires or metal wire woven nets as raw materials, winding and compounding the metal wires or reasonably matching a plurality of layers of metal wire woven nets, and pressing, rolling and high-temperature treatment. The weaving method of the metal wire filter screen generally comprises a plain weaving method and a twill weaving method, wherein the plain weaving method is formed by interweaving every two warp yarns and every two weft yarns up and down once, the metal wire filter screen with about 500 meshes (the aperture is 26 mu m) can be woven, if the filtering aperture is smaller than 26 mu m, the plain weaving method is difficult to weave the metal wire screen with the corresponding aperture, and the filtering effect is unstable; the twill weave is a structure formed by combining more than three warps and wefts, wherein the two warps and wefts are crossed with each other, but the twill woven net is easily inclined and deformed in the using process, the mesh stability of the filter screen is poor, and the filtering precision is reduced.
It is therefore desirable to provide a wire mesh filter product with improved mechanical properties and improved filtration accuracy.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art described above. Therefore, the metal wire-based filter screen has the outstanding characteristics of high filter precision, stable filter effect and difficult deformation, and can fully meet the filter requirements in practical laboratories.
The invention provides a metal wire-based filter screen, which is a twill woven screen consisting of warps and wefts, wherein the yarn diameter of the warps is larger than that of the wefts, and the number of the wefts is larger than that of the warps.
According to the invention, the thick warp yarns and the thin weft yarns are adopted to carry out twill dense weaving, and the dense weaving method enables the twill dense weaving net to be firm, bear high working strength, not easy to deform in the using process and have stable filtering effect. Wherein every woof shuttles back and forth down with adjacent per two warp silks, and the warp interval is greater than the woof interval, can form the pore in a direction, forms the macropore in another direction, and the woof closely draws close and forms toper or wedge shape trompil for the twill close grain net that forms has the thickness that traditional twill woven mesh and plain weave net can not reach, and can bear bigger load and do not take place to warp.
Preferably, the diameter of the warp yarn is 0.5-3.2mm, and the diameter of the weft yarn is 0.02-0.36 mm.
More preferably, the diameter of the warp yarn is 1.2-3.2mm, and the diameter of the weft yarn is 0.2-0.3 mm.
Preferably, the number ratio of the weft threads to the warp threads is (6.75-9.23): 1.
more preferably, the number ratio of the weft threads to the warp threads is (7-8.5): 1.
preferably, the pore size of the wire-based filter mesh is 3 to 45 μm. Due to the high mesh stability of the metal wire-based filter screen, a good filtering effect can be realized when the pore diameter is controlled to be 3-5 mu m, and the metal wire-based filter screen has good filtering precision.
Preferably, the material of the wire-based filter screen is selected from nickel or 316L stainless steel. Different metal wire materials are screened, and compared with the traditional iron wire or aluminum wire materials, the nickel or 316L stainless steel material is more suitable for the metal wire-based filter screen, so that better mechanical performance and filter precision are realized.
Preferably, the frame of the wire-based filter screen is a square frame or an annular frame. Different types of frames can be selected according to different application scenes of the metal wire-based filter screen.
The invention also provides a manufacturing method of the filter screen based on the metal wire, which comprises the following steps:
and weaving warps and wefts by adopting a twill method, and then pressing, rolling and heating to obtain the metal wire-based filter screen.
Compared with the prior art, the invention has the following beneficial effects:
(1) the filter screen based on the metal wires has good mechanical performance, is not easy to deform in the using process, and can bear larger working strength (can bear the pressure of 0.2MPa at most);
(2) the filter screen based on the metal wires also has the outstanding advantages of high filtering precision and good filtering effect, and the minimum aperture of the filter screen can reach 3 mu m;
(3) the filter screen based on the metal wire is easy to process and finish procedures such as cutting, bending and stretching.
Drawings
FIG. 1 is a schematic view of the structure of a wire-based filter screen in example 1;
FIG. 2 is a cross-sectional view of the wire-based filter screen of FIG. 1;
wherein the warp threads 1 and the weft threads 2.
Detailed Description
In order to make the technical solutions of the present invention more apparent to those skilled in the art, the following examples are given for illustration. It should be noted that the following examples are only preferred embodiments of the present invention, and the claimed protection scope is not limited thereto, and any modification, substitution, combination made without departing from the spirit and principle of the present invention are included in the protection scope of the present invention.
The starting materials, reagents or apparatuses used in the following examples are conventionally commercially available or can be obtained by conventionally known methods, unless otherwise specified.
Example 1
This embodiment provides a filter screen based on wire, constitutes twill woven mesh by warp and woof, and wherein the diameter of warp is 1.2mm, and the diameter of woof is 0.2mm, and the quantity ratio of woof and warp is 7. The aperture of the filter screen based on the metal wires is 5 microns, the material is nickel, and the frame of the filter screen based on the metal wires is an annular frame.
The manufacturing method of the filter screen based on the metal wires comprises the following steps: and weaving the warps and the wefts by adopting a twill method, and then pressing, rolling and heating to prepare the metal wire-based filter screen.
The embodiment carries out the twill through adopting thicker warp and thinner tram and weaving densely, and this kind of dense weaving makes the twill weave dense net firm, can bear great working strength, and use non-deformable, the filter effect is stable. Fig. 1 is a schematic view showing a structure of the wire-based filter net, and fig. 2 is a sectional view of the wire-based filter net shown in fig. 1. Wherein every woof 2 shuttles back and forth with every two adjacent warp 1 within a definite time, and warp 1 interval is greater than woof 2 interval, can form the pore in a direction, forms the macropore in another direction, and woof 1 closely draws together and forms toper or wedge form trompil for the dense line net of twill that forms can bear bigger load and not take place to warp.
Example 2
This embodiment provides a wire-based filter screen, which differs from the embodiments only in that: the diameter of the warp threads is 2mm, the diameter of the weft threads is 0.3mm, and the number ratio of the weft threads to the warp threads is 8.5. The aperture of the metal wire filter screen is 15 mu m, the material is 316L stainless steel, and the frame of the metal wire-based filter screen is a square frame.
Comparative example 1
The comparative example provides a wire filter screen, and the diameter of used warp and weft is the same, and warp interval is equal with the woof interval, adopts twill to weave formation wire filter screen, and the aperture of wire filter screen is 30 mu m.
Comparative example 2
The comparative example provides a metal wire filter screen, the diameter of the used warp and weft is the same, the warp interval is equal to the weft interval, the metal wire filter screen is formed by plain weaving, and the aperture of the metal wire filter screen is 25 μm.
Product effectiveness testing
The filter screens of examples 1-2 and comparative examples 1-2 were subjected to performance tests, and the test results are shown in table 1.
TABLE 1 Filter Screen Performance test
| Test items | Example 1 | Example 2 | Comparative example 1 | Comparative example 2 |
| Pore diameter | 5μm | 15μm | 30μm | 25μm |
| Maximum bearing pressure | 0.2MPa | 0.18MPa | 0.12MPa | 0.14MPa |
As can be seen from table 1, compared to the conventional twill woven mesh and plain woven mesh (comparative examples 1 to 2), the wire-based filter screen obtained in examples 1 to 2 can bear higher working strength (can bear 0.2MPa of pressure at the highest) while ensuring better filtering accuracy and smaller pore size, and is less likely to deform during use.
Claims (8)
1. The utility model provides a filter screen based on wire, its characterized in that comprises warp and weft twill woven mesh, the silk footpath of warp is greater than the silk footpath of weft, the quantity of weft is more than the quantity of warp.
2. The wire-based filter screen according to claim 1, wherein the warp has a wire diameter of 0.5-3.2mm and the weft has a wire diameter of 0.02-0.36 mm.
3. The wire-based filter screen according to claim 2, wherein the warp has a wire diameter of 1.2-3.2mm and the weft has a wire diameter of 0.2-0.3 mm.
4. The wire-based filtration screen of claim 1, wherein the ratio of the number of weft threads to the number of warp threads is (6.75-9.23): 1.
5. the wire-based filter screen of claim 4, wherein the ratio of the number of weft threads to the number of warp threads is (7-8.5): 1.
6. the wire-based filtration web of claim 1, wherein the wire-based filtration web has a pore size of 3-45 μm.
7. The wire-based filter screen of claim 1, wherein the wire-based filter screen is selected from nickel or 316L stainless steel.
8. The wire-based filter screen of claim 1, wherein the border of the wire-based filter screen is a square frame or an annular frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110263242.XA CN113018983A (en) | 2021-03-11 | 2021-03-11 | Filter screen based on metal wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110263242.XA CN113018983A (en) | 2021-03-11 | 2021-03-11 | Filter screen based on metal wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113018983A true CN113018983A (en) | 2021-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110263242.XA Pending CN113018983A (en) | 2021-03-11 | 2021-03-11 | Filter screen based on metal wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113018983A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207745616U (en) * | 2017-12-07 | 2018-08-21 | 新乡市天诚航空净化设备有限公司 | A kind of Optimization-type metal wire microgroove mesh grid |
| CN215232707U (en) * | 2021-03-11 | 2021-12-21 | 广州工程技术职业学院 | Filter screen based on metal wire |
-
2021
- 2021-03-11 CN CN202110263242.XA patent/CN113018983A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207745616U (en) * | 2017-12-07 | 2018-08-21 | 新乡市天诚航空净化设备有限公司 | A kind of Optimization-type metal wire microgroove mesh grid |
| CN215232707U (en) * | 2021-03-11 | 2021-12-21 | 广州工程技术职业学院 | Filter screen based on metal wire |
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