CN113769480A - Multi-density welding-free filter screen for chlor-alkali machine and manufacturing method - Google Patents
Multi-density welding-free filter screen for chlor-alkali machine and manufacturing method Download PDFInfo
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- CN113769480A CN113769480A CN202111059530.XA CN202111059530A CN113769480A CN 113769480 A CN113769480 A CN 113769480A CN 202111059530 A CN202111059530 A CN 202111059530A CN 113769480 A CN113769480 A CN 113769480A
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- 239000003513 alkali Substances 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000009941 weaving Methods 0.000 claims abstract description 27
- 238000003466 welding Methods 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000009940 knitting Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 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
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- 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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- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Abstract
The invention relates to a multi-density welding-free filter screen for a chlor-alkali machine and a manufacturing method thereof, belonging to the technical field of filter screen preparation. The screen includes a high density region and a low density region; the two outermost ends of the filter screen are low-density areas; the high-density area and the low-density area are sequentially arranged; the high-density area and the low-density area are of an integrally formed structure; the low-density area is formed by weaving warp yarns and weft yarns in a staggered mode; the high density areas use the same weft as the low density areas, and the high density areas have a warp density greater than the low density warp density. The filter screen for the chlor-alkali machine can realize the processing and manufacturing of a multi-density area without adopting a welding mode; by adopting the integral weaving structure and the weaving method, the filter screen can be of an integrally formed structure, and the integral structure of the filter screen has good strength and good flatness.
Description
Technical Field
The invention relates to a multi-density welding-free filter screen for a chlor-alkali machine and a manufacturing method thereof, belonging to the technical field of filter screen preparation.
Background
The filter screen used by the chlor-alkali machine has special requirements, the common filter screen can not meet the use requirements, and the filter screens with different densities are most suitable for the chlor-alkali machine. However, the limitation of the manufacturing method is limited, the existing manufacturing method of the chlor-alkali machine net is connected in a welding mode, and because the product is three nets with different weaving densities, the weaving densities of the net sheets at two ends are low, and the weaving density of the net sheet in the middle is high; three net piece need link together through the welded mode, and this whole intensity that just causes the net piece after the welding has a problem, and the fracture appears easily in the welding department, and inevitable deckle edge and crater appear during the welding, cause the holistic roughness of net piece not high, and the result of use is not good.
Disclosure of Invention
The invention aims to provide a multi-density welding-free filter screen for a chlor-alkali machine and a manufacturing method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that:
a multi-density welding-free filter screen for a chlor-alkali machine comprises a high-density area and a low-density area; the two outermost ends of the filter screen are low-density areas; the high-density area and the low-density area are sequentially arranged; the high-density area and the low-density area are of an integrally formed structure; the low-density area is formed by weaving warp yarns and weft yarns in a staggered mode; the high density areas use the same weft as the low density areas, and the high density areas have a warp density greater than the low density warp density.
The technical scheme of the invention is further improved as follows: the diameter of the warp threads of the high-density region is smaller than that of the warp threads of the low-density region.
The technical scheme of the invention is further improved as follows: two low-density areas are arranged and are respectively positioned at two ends; the high-density area is arranged in one and positioned in the middle.
The technical scheme of the invention is further improved as follows: the mesh number of the low-density area is 5-10 meshes; the mesh number of the high-density area is 40-60 meshes.
A manufacturing method of a multi-density welding-free filter screen for a chlor-alkali machine comprises the following steps: firstly, weaving the net piece part in the low-density area, and after the net piece part reaches the specified length, continuing extending the weft forward to weave the net piece part in the high-density area; the distance between the warp threads of the high-density area mesh part is smaller than the distance between the warp threads of the low-density area mesh part; and after the mesh part of the high-density area reaches the preset length, the knitting mode of the first piece of mesh of the low-density area is changed to knit the second piece of mesh of the low-density area.
The technical scheme of the invention is further improved as follows: when the high-density area mesh part is woven, warp threads with thin thread diameters are replaced and woven with original weft threads.
Due to the adoption of the technical scheme, the invention has the following technical effects:
the invention relates to a multi-density welding-free filter screen for a chlor-alkali machine, which has various different densities, can be well suitable for the chlor-alkali machine and improves the using effect of the chlor-alkali machine.
The invention can realize the processing and manufacturing of the multi-density area without adopting a welding mode, in particular to adopt an integral weaving structure and a weaving method, and when weaving the areas with different densities, the weft does not change into warp; because the same weft is used for the whole filter screen, the filter screen is of an integrally formed structure, and the structural strength is good on the whole; and the filter screen has good flatness and good comprehensive use effect.
The filter screen of the present invention wherein both the low density regions and the high density regions are formed using a staggered weave of warp and weft threads. The meshes formed by the wave-shaped interlaced weaving are rectangular meshes. This kind of weaving mode can distinguish warp and weft conveniently, when realizing whole weaving, the change of warp.
The filter screen is reasonable in structure arrangement, convenient to produce and good in comprehensive performance.
Drawings
FIG. 1 is a schematic structural view of the present invention;
among them, 1, low density region, 2, high density region.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention relates to a multi-density welding-free filter screen for a chlor-alkali machine, which is provided with a plurality of areas with different densities on a whole filter screen, thereby being suitable for the filtering requirements of the chlor-alkali machine. The invention also discloses a manufacturing method of the filter screen with the structure. The following describes the structure of the filter screen and the method of making the filter screen.
As shown in fig. 1, the screen comprises a high density area and a low density area, and as the name suggests, the screen in the high density area has high mesh density and small mesh; the mesh density of the filter screen in the low-density area is low, and the mesh is large.
Two outermost ends of the filter screen are set as low-density areas; the high-density region and the low-density region are sequentially arranged in this order. If three low-density areas are provided, two high-density areas are provided in the gaps of the three low-density areas; if two low density regions are provided, a high density region is provided in the space between the two low density regions.
The filter screen of the present invention wherein both the low density regions and the high density regions are formed using a staggered weave of warp and weft threads. The meshes formed by the wave-shaped interlaced weaving are rectangular meshes. This kind of weaving mode can distinguish warp and weft conveniently, when realizing whole weaving, the change of warp.
The filter screen is of an integrally formed structure, welding is not needed, and the high-density area and the low-density area are woven by the same weft. The warp density in the high-density area is greater than the warp density in the low-density area, so that weaving of the high-density area is realized. For example, if the distance between adjacent warp wires in the low density region is 2mm, the distance between adjacent warp wires in the high density region may be 1 mm.
Further, in order to better realize the weaving of the high-density region and ensure the filtering effect of the high-density region, preferably, the diameter of the warp of the high-density region is set smaller than that of the warp of the low-density region. Typically, the warp and weft threads of the low density region are of uniform diameter.
In a specific implementation, the mesh number of the low-density area is further set to be 5-10 meshes; the mesh number of the high-density area is 40-60 meshes. The mesh number can also be adjusted as required.
The invention also discloses a manufacturing method of the multi-density welding-free filter screen for the chlor-alkali machine, which adopts a weaving method rather than a welding method to realize the processing of the multi-density filter screen.
Specifically, the mesh part in the low-density area is woven firstly, and after the specified length is reached, the weft does not extend forwards any more, and the mesh part in the high-density area is woven; when the warps of the high-density area are woven, the distance between the warps of the net piece part of the high-density area is smaller than the distance between the warps of the net piece part of the low-density area; and after the mesh part of the high-density area reaches the preset length, the knitting mode of the first piece of mesh of the low-density area is changed to knit the second piece of mesh of the low-density area. If the filter screen needs a plurality of high-density areas and low-density areas which are arranged in sequence, the weaving scheme is still adopted.
Furthermore, when the high-density area mesh part is woven, warp threads with thin thread diameters are used for weaving with original weft threads instead. Therefore, the mesh size of the high-density area can be controlled more conveniently, the mesh density is further controlled, and the high-density area is set more conveniently. And the effects of saving materials and reducing the whole weight can be achieved.
When weaving, the mesh size of the filter screen is controlled according to the requirement.
The filter screen for the chlor-alkali machine can realize the processing and manufacturing of a multi-density area without adopting a welding mode; by adopting the integral weaving structure and the weaving method, the filter screen can be of an integrally formed structure, and the integral structure of the filter screen has good strength and good flatness.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a many densities do not have welding filter screen for chlor-alkali machine which characterized in that: the screen includes a high density region and a low density region; the two outermost ends of the filter screen are low-density areas; the high-density area and the low-density area are sequentially arranged; the high-density area and the low-density area are of an integrally formed structure; the low-density area is formed by weaving warp yarns and weft yarns in a staggered mode; the high density areas use the same weft as the low density areas, and the high density areas have a warp density greater than the low density warp density.
2. The multiple density weldless screen of claim 1, wherein: the diameter of the warp threads of the high-density region is smaller than that of the warp threads of the low-density region.
3. The multiple density weldless screen of claim 1, wherein: two low-density areas are arranged and are respectively positioned at two ends; the high-density area is arranged in one and positioned in the middle.
4. The multiple-density welding-free filter screen for the chlor-alkali machine according to any of claims 1 to 3, characterized in that: the mesh number of the low-density area is 5-10 meshes; the mesh number of the high-density area is 40-60 meshes.
5. A method for manufacturing a multi-density welding-free filter screen for a chlor-alkali machine according to any of claims 1 to 3, characterized by comprising the steps of: firstly, weaving the net piece part in the low-density area, and after the net piece part reaches the specified length, continuing extending the weft forward to weave the net piece part in the high-density area; the distance between the warp threads of the high-density area mesh part is smaller than the distance between the warp threads of the low-density area mesh part; and after the mesh part of the high-density area reaches the preset length, the knitting mode of the first piece of mesh of the low-density area is changed to knit the second piece of mesh of the low-density area.
6. The method for manufacturing a multi-density welding-free filter screen for a chlor-alkali machine according to claim 5, characterized in that: when the high-density area mesh part is woven, warp threads with thin thread diameters are replaced and woven with original weft threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111059530.XA CN113769480A (en) | 2021-09-10 | 2021-09-10 | Multi-density welding-free filter screen for chlor-alkali machine and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111059530.XA CN113769480A (en) | 2021-09-10 | 2021-09-10 | Multi-density welding-free filter screen for chlor-alkali machine and manufacturing method |
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| Publication Number | Publication Date |
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| CN113769480A true CN113769480A (en) | 2021-12-10 |
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| CN202111059530.XA Pending CN113769480A (en) | 2021-09-10 | 2021-09-10 | Multi-density welding-free filter screen for chlor-alkali machine and manufacturing method |
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Citations (10)
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|---|---|---|---|---|
| GB2360003A (en) * | 2000-03-11 | 2001-09-12 | United Wire Ltd | Filter screen for vibratory separation equipment |
| CN1901987A (en) * | 2003-11-25 | 2007-01-24 | 巴布考克日立株式会社 | Filter for exhaust gas from diesel engine |
| US20080237405A1 (en) * | 2007-03-27 | 2008-10-02 | Beck Jeffrey L | Screen for a Vibratory Separator Having Wear Reduction Feature |
| CN201362768Y (en) * | 2009-02-16 | 2009-12-16 | 厦门金纶科技有限公司 | Sectional mesh grid and winding component thereof |
| JP2011041870A (en) * | 2009-08-19 | 2011-03-03 | Tamurakoma & Co Ltd | Filter for air conditioner, and method for manufacturing the same |
| CN203196460U (en) * | 2013-04-12 | 2013-09-18 | 宁波维科特种材料有限公司 | High-strength filter silk screen |
| CN103432823A (en) * | 2013-06-24 | 2013-12-11 | 赵会扣 | Production method for industrial filter filtration screen |
| CN107970681A (en) * | 2017-12-07 | 2018-05-01 | 新乡市天诚航空净化设备有限公司 | Application of the super-duplex stainless steel material in fine groove plain weave net |
| 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 |
| CN215939294U (en) * | 2021-09-10 | 2022-03-04 | 安平县星火金属制品有限公司 | Many densities do not have welding filter screen for chlor-alkali machine |
-
2021
- 2021-09-10 CN CN202111059530.XA patent/CN113769480A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2360003A (en) * | 2000-03-11 | 2001-09-12 | United Wire Ltd | Filter screen for vibratory separation equipment |
| CN1901987A (en) * | 2003-11-25 | 2007-01-24 | 巴布考克日立株式会社 | Filter for exhaust gas from diesel engine |
| US20080237405A1 (en) * | 2007-03-27 | 2008-10-02 | Beck Jeffrey L | Screen for a Vibratory Separator Having Wear Reduction Feature |
| CN201362768Y (en) * | 2009-02-16 | 2009-12-16 | 厦门金纶科技有限公司 | Sectional mesh grid and winding component thereof |
| JP2011041870A (en) * | 2009-08-19 | 2011-03-03 | Tamurakoma & Co Ltd | Filter for air conditioner, and method for manufacturing the same |
| CN203196460U (en) * | 2013-04-12 | 2013-09-18 | 宁波维科特种材料有限公司 | High-strength filter silk screen |
| CN103432823A (en) * | 2013-06-24 | 2013-12-11 | 赵会扣 | Production method for industrial filter filtration screen |
| CN107970681A (en) * | 2017-12-07 | 2018-05-01 | 新乡市天诚航空净化设备有限公司 | Application of the super-duplex stainless steel material in fine groove plain weave net |
| 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 |
| CN215939294U (en) * | 2021-09-10 | 2022-03-04 | 安平县星火金属制品有限公司 | Many densities do not have welding filter screen for chlor-alkali machine |
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