CN103801156A - Multi-layer metal fiber sintered felt - Google Patents
Multi-layer metal fiber sintered felt Download PDFInfo
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- CN103801156A CN103801156A CN201410077817.9A CN201410077817A CN103801156A CN 103801156 A CN103801156 A CN 103801156A CN 201410077817 A CN201410077817 A CN 201410077817A CN 103801156 A CN103801156 A CN 103801156A
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Abstract
The invention relates to a multi-layer metal fiber sintered felt. The multi-layer metal fiber sintered felt comprises a thick metal fiber filtering layer and a thin metal fiber filtering layer, wherein two-dimensional woven metal fiber layers are sintered on outer sides of the thick metal fiber filtering layer and the thin metal fiber filtering layer respectively; thickness of the two-dimensional woven metal fiber layers is 0.1-0.5mm; diameter of a monofilament metal fiber is 30-75 microns; the two-dimensional woven metal fiber layers play the role of dispersing stress between a protection mesh and fiber filtering layers; the multi-layer metal fiber sintered felt is reasonable in structure, simple in preparation process, long in service life, low in cost and good in filtering effect; and the multi-layer metal fiber sintered felt is an ideal multi-layer metal fiber sintered felt which is suitable for filtering high-temperature gas, filtering polymer melt, filtering viscose and filtering in a beer fermentation process.
Description
Technical field
The present invention relates to a kind of filtering material, specifically a kind of multiple layer metal fiber sintering felt serving.
Background technology
We know, compared with sintering metal powder filtering material metallic fiber sintered felt owing to thering is porosity high (can arrive 85%), the advantage such as air permeability is good, pressure reduction is little and pollutant holding capability is large, therefore aspect hydraulic contamination, fluid contamination and high temperature air filtration, demonstrating great advantage.In addition, with another difference of sintering metal powder filter medium be that metallic fiber sintered felt filtering material is generally in-depth filtration (and sintering metal powder filter medium is surface filtration), due to the very big raising of pollutant holding capability, this reduces the backwash frequency of filter medium in the time of work greatly, has improved stability and the service life of filtration system.Based on above advantage, metallic fiber sintered felt is having extensive and irreplaceable application aspect the filtrations such as high temperature air filtration (as blast furnace gas, Coal Chemical Industry), polymer melt filtration, viscose fiber and chemical fibre production, beer fermentation filtration, petrochemical catalyst.
(filtering accuracy 0.4 ~ 10 μ metallic fiber sintered felt m) generally need to adopt thinner metallic fiber to realize to high filtering precision, and for example diameter is 316L and/or 302 and/or 304 stainless steel fibres of 4 ~ 1.5 μ m.And the sintering felt that thinner metallic fiber is made exists the relative crude metal fiber of mechanical property in having improved filtering accuracy, (for example fibre diameter 30 ~ 75 μ m) have a feature of obvious reduction, thereby have affected the service life of sintering felt.
Summary of the invention
Technical problem to be solved by this invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of rational in infrastructure, preparation technology is simple, long service life, cost are low, the multiple layer metal fiber sintering felt serving of good filtration effect.
The technical scheme that the present invention solves the problems of the technologies described above employing is: a kind of multiple layer metal fiber sintering felt serving, it includes crude metal fibrous filter layer and thin metallic fiber filter course, it is characterized in that: there is control of two-dimensional braided metallic fibrous layer in the outside of described crude metal fibrous filter layer and thin metallic fiber filter course respectively sintering.
The thickness of control of two-dimensional braided metallic fibrous layer of the present invention is 0.1 ~ 0.5mm, and monofilament metallic fiber diameter is 30 ~ 75 μ m.
The outside of control of two-dimensional braided metallic fibrous layer of the present invention is also provided with metal protecting wire net layer, and described protecting wire net layer mesh size is 20-60 order, and woven wire string diameter is 0.1-0.5mm.Also can adopt outside expanded metal, woven wire or perforate ceramic wafer to support.
The present invention is 0.1 ~ 0.5mm control of two-dimensional braided metallic fibrous layer at the outside sintering thickness of crude metal fibrous filter layer and thin metallic fiber filter course.Control of two-dimensional braided metallic fibrous layer plays the effect that disperses stress between protecting wire net and fibrous filter layer, contributes to service life stable and lifting sintering felt.Against existing technologies, it is rational in infrastructure, preparation technology is simple, and long service life, cost are low, and good filtration effect, is a kind of desirable multiple layer metal fiber sintering felt serving.Being applicable to high temperature air filtration, polymer melt filtration, viscose filtration and beer fermentation technique filters.
Accompanying drawing explanation
Fig. 1 is composition structural representation of the present invention.
Fig. 2 is the structural representation of setting up protecting wire net layer of the present invention.
Label in figure is: 1. control of two-dimensional braided metallic fibrous layer, 2. crude metal fibrous filter layer, 3. thin metallic fiber filter course, 4. control of two-dimensional braided metallic fibrous layer, 5. protecting wire net layer, 6. protecting wire net layer.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
As can be seen from Figure 1, a kind of multiple layer metal fiber sintering felt serving, it includes crude metal fibrous filter layer 2 and thin metallic fiber filter course 3.The fibre diameter of crude metal fiber is between 30 ~ 75 μ m, and the diameter of thin metallic fiber is between 1.5 ~ 22 μ m.Crude metal fibrous filter layer 2 and thin metallic fiber filter course 3 are filter course.Described crude metal fibrous filter layer 2 and thin metallic fiber filter course 3 combine by vacuum-sintering.Sintering by solid-state diffusion, combines Powdered or fiberous material and has the material preparation process of some strength under hot conditions.Its process: under high vacuum or inert atmosphere protection condition, be heated to 1100-1300
oc, and be cooled to room temperature after being incubated 1-3h.Metallic fiber sintered felt can be 200 series, 300 series stainless steels, Ni and Ti fibrofelt.
Feature of the present invention is: there is control of two-dimensional braided metallic fibrous layer 1,4 in the outside of described crude metal fibrous filter layer 2 and thin metallic fiber filter course 3 respectively sintering.The crude metal fibrous filter layer 2 outside sintering of inflow side have control of two-dimensional braided metallic fibrous layer 1 specifically; Thin metallic fiber filter course 3 sintering of outflow side have control of two-dimensional braided metallic fibrous layer 4.
The thickness of described control of two-dimensional braided metallic fibrous layer 1 and control of two-dimensional braided metallic fibrous layer 4 is 0.1 ~ 0.5mm, and monofilament metallic fiber diameter is 30 ~ 75 μ m.Control of two-dimensional braided metallic fibrous layer plays the effect of stress between loosen collagen fibre filter course, contributes to service life stable and lifting sintering felt.
As can be seen from Figure 2, the outside of control of two-dimensional braided metallic fibrous layer of the present invention is also provided with metal protecting wire net layer 5 and 6.Also can adopt outside expanded metal, woven wire or perforate ceramic wafer to support.Control of two-dimensional braided metallic fibrous layer 1 outside of inflow side is provided with metal protecting wire net layer 5 specifically; Control of two-dimensional braided metallic fibrous layer 1 outside of outflow side is provided with metal protecting wire net layer 6.Described protecting wire net layer 5 and 6 mesh size are 20-60 order, and woven wire string diameter is 0.1-0.5mm.Like this, control of two-dimensional braided metallic fibrous layer 1 is clipped between the metal protecting wire net layer 5 and crude metal fibrous filter layer 2 of inflow side; Control of two-dimensional braided metallic fibrous layer 4 is clipped between the metal protecting wire net layer 6 and thin metallic fiber filter course 3 of outflow side; Control of two-dimensional braided metallic fibrous layer plays the effect that disperses stress between protecting wire net and fibrous filter layer, contributes to service life stable and lifting sintering felt.
Certainly, the present invention, except above-mentioned embodiment, can also only have control of two-dimensional braided metallic fibrous layer at the thin metallic fiber filter course sintering of outflow side; Also can further there be control of two-dimensional braided metallic fibrous layer and outside metal protecting wire net layer at the thin metallic fiber filter course sintering of outflow side.And in the thin metallic fiber filter course outside of inflow side, control of two-dimensional braided metallic fibrous layer and outside metal protecting wire net layer are not set.
The present invention is 0.1 ~ 0.5mm control of two-dimensional braided metallic fibrous layer at the outside sintering thickness of crude metal fibrous filter layer and thin metallic fiber filter course.It is rational in infrastructure, preparation technology is simple, and long service life, cost are low, and good filtration effect, is a kind of desirable multiple layer metal fiber sintering felt serving.Being applicable to high temperature air filtration, polymer melt filtration, viscose filtration and beer fermentation technique filters.
Claims (3)
1. a multiple layer metal fiber sintering felt serving, it includes crude metal fibrous filter layer and thin metallic fiber filter course, it is characterized in that: there is control of two-dimensional braided metallic fibrous layer in the outside of described crude metal fibrous filter layer and thin metallic fiber filter course respectively sintering.
2. multiple layer metal fiber sintering felt serving according to claim 1, is characterized in that: the thickness of described control of two-dimensional braided metallic fibrous layer is 0.1 ~ 0.5mm, and monofilament metallic fiber diameter is 30 ~ 75 μ m.
3. multiple layer metal fiber sintering felt serving according to claim 1, is characterized in that: the outside of described control of two-dimensional braided metallic fibrous layer is also provided with metal protecting wire net layer, and described protecting wire net layer mesh size is 20-60 order, and woven wire string diameter is 0.1-0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410077817.9A CN103801156A (en) | 2014-03-05 | 2014-03-05 | Multi-layer metal fiber sintered felt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410077817.9A CN103801156A (en) | 2014-03-05 | 2014-03-05 | Multi-layer metal fiber sintered felt |
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| CN103801156A true CN103801156A (en) | 2014-05-21 |
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| CN201410077817.9A Pending CN103801156A (en) | 2014-03-05 | 2014-03-05 | Multi-layer metal fiber sintered felt |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608735A (en) * | 2015-01-30 | 2015-05-13 | 苏州海普过滤分离科技有限公司 | Gas filter used in automobile safety air bag and manufacturing method thereof |
| CN106553908A (en) * | 2015-09-28 | 2017-04-05 | 石家庄波特无机膜分离设备有限公司 | A kind of high strength pipe aerator |
| CN110450506A (en) * | 2019-08-02 | 2019-11-15 | 南京意西欧环境科技有限公司 | A kind of Liqiud-gas mixing device preparation method of gradient woven fabric network pressure electric arc sintering equipment and agglomerated material |
| CN117225081A (en) * | 2023-09-15 | 2023-12-15 | 广东新力新材料有限公司 | Film-covered metal fiber felt |
Citations (7)
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|---|---|---|---|---|
| EP0057848A1 (en) * | 1981-01-29 | 1982-08-18 | Nippon Seisen Co., Ltd. | Metallic sintered body and process for preparing the same |
| JP2000129311A (en) * | 1998-10-28 | 2000-05-09 | Bridgestone Corp | Metallic fiber non-woven fabric sintered sheet |
| CN1429935A (en) * | 2001-12-30 | 2003-07-16 | 陈柄权 | Metal fiber felt having protective net and its making method |
| CN2677008Y (en) * | 2003-12-17 | 2005-02-09 | 西部金属材料股份有限公司 | Multilayer metal composite cintered net for filtration |
| CN1942226A (en) * | 2004-04-15 | 2007-04-04 | 贝卡尔特股份有限公司 | Sintered metal fiber medium |
| CN101987267A (en) * | 2010-12-09 | 2011-03-23 | 王东伟 | Method for producing wire mesh stainless steel fibrofelt compound filter disc |
| CN102068857A (en) * | 2010-11-26 | 2011-05-25 | 王东伟 | Production method of metal fibrofelt |
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2014
- 2014-03-05 CN CN201410077817.9A patent/CN103801156A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0057848A1 (en) * | 1981-01-29 | 1982-08-18 | Nippon Seisen Co., Ltd. | Metallic sintered body and process for preparing the same |
| JP2000129311A (en) * | 1998-10-28 | 2000-05-09 | Bridgestone Corp | Metallic fiber non-woven fabric sintered sheet |
| CN1429935A (en) * | 2001-12-30 | 2003-07-16 | 陈柄权 | Metal fiber felt having protective net and its making method |
| CN2677008Y (en) * | 2003-12-17 | 2005-02-09 | 西部金属材料股份有限公司 | Multilayer metal composite cintered net for filtration |
| CN1942226A (en) * | 2004-04-15 | 2007-04-04 | 贝卡尔特股份有限公司 | Sintered metal fiber medium |
| CN102068857A (en) * | 2010-11-26 | 2011-05-25 | 王东伟 | Production method of metal fibrofelt |
| CN101987267A (en) * | 2010-12-09 | 2011-03-23 | 王东伟 | Method for producing wire mesh stainless steel fibrofelt compound filter disc |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104608735A (en) * | 2015-01-30 | 2015-05-13 | 苏州海普过滤分离科技有限公司 | Gas filter used in automobile safety air bag and manufacturing method thereof |
| CN106553908A (en) * | 2015-09-28 | 2017-04-05 | 石家庄波特无机膜分离设备有限公司 | A kind of high strength pipe aerator |
| CN110450506A (en) * | 2019-08-02 | 2019-11-15 | 南京意西欧环境科技有限公司 | A kind of Liqiud-gas mixing device preparation method of gradient woven fabric network pressure electric arc sintering equipment and agglomerated material |
| CN117225081A (en) * | 2023-09-15 | 2023-12-15 | 广东新力新材料有限公司 | Film-covered metal fiber felt |
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Application publication date: 20140521 |