CN201889126U - Corrosion-resisting and heat resisting composite filter material - Google Patents
Corrosion-resisting and heat resisting composite filter material Download PDFInfo
- Publication number
- CN201889126U CN201889126U CN2010202737310U CN201020273731U CN201889126U CN 201889126 U CN201889126 U CN 201889126U CN 2010202737310 U CN2010202737310 U CN 2010202737310U CN 201020273731 U CN201020273731 U CN 201020273731U CN 201889126 U CN201889126 U CN 201889126U
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- filter
- resisting
- corrosion
- filter course
- felt
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Abstract
The utility model relates to a corrosion-resisting and heat resisting composite filter material which comprises a foundation and a filter felt. The filter felt covered on the upper surface is an upper filter layer of the meet dust surface, the filter layer covered on the lower surface is a lower filter layer, the surface of the upper filter layer is covered by a teflon film, the foundation is treated by maceration extract, the length of the fiber material in the upper filter layer and the lower filter layer both is between 60mm and 70mm.
Description
Technical field
The utility model relates to a kind of filtering material and preparation method thereof, especially a kind of corrosion-resisting and heat-resisting compound filter material that is used for coal-burning boiler and flue gas of garbage furnace purification and preparation method thereof.
Background technology
The present filtering material that uses at the flue gas purification system of coal-burning boiler and incinerator mainly is polyphenylene sulfide (PPS) Nomex, or polytetrafluoroethylene (PTFE) fiber needled felt, or adopt glass fibre to cover the filtrate of poly tetrafluoroethylene, wherein, the oxidation resistent susceptibility of PPS Nomex is bad, can't adapt to the filtration environment under the high oxygen condition, and do not have water repellency, under the low temperature or the condition of high temperature, move, very easily cause sticking with paste bag, influence the effect of gas cleaning.Be generally 1～2 year the normal service life of PPS Nomex.Though the PTFE Nomex has water repellency, oxidation resistent susceptibility, its price is higher, and is also very high to the requirement of equipment for after-treatment, increased the operating cost of enterprise, influenced its promoting the use of in the general enterprise of profitability.Be generally 3 years the normal service life of PTFE Nomex.The base material that glass fibre covers the polytetrafluoroethylene (PTFE) film filtering material is a glass fibre, and its folding resistance is relatively poor, should not use under the high wind speed state, especially in running, after being adhered to by oil droplet etc., also causes filter bag to lose efficacy easily.
How to select proper raw material to make Nomex, and they are combined into the filtering material of new corrosion-resistant and high-temperature resistant, to adapt to the specific environment for use of coal-burning boiler and flue gas of garbage furnace cleaning system, be the long-term major subjects of paying close attention in this area always.
The utility model content
The purpose of this utility model is: at the problem that the main filtering material that generally uses in present coal-burning boiler and the flue gas of garbage furnace gas cleaning exists, proposes filtering material of a kind of corrosion-resistant and high-temperature resistant by multiple fiber composite making and preparation method thereof.
The purpose of this utility model is achieved in that a kind of corrosion-resisting and heat-resisting compound filter material, comprise base cloth and filter felt, it is characterized in that: the upper and lower surface of base cloth all is covered with filter felt, wherein: the filter felt that is overlying on upper surface is the last filter course of dust-collecting face, and the filter felt that is overlying on lower surface is following filter course; Surface at last filter course is covered with poly tetrafluoroethylene; Described base cloth is through the maceration extract impregnation process; The described filter felt of going up filter course is to make after evenly being mixed by every square metre of 55-65g, 45-55g, 40-50g, 35-45g and 30-40g respectively by terylene chemical fibre, glass fibre, polyphenylene sulfide fibre, Fypro and polytetrafluoroethylene fibre; The described filter felt of filter course down is to make after evenly being mixed by every square metre of 55-65g, 45-55g, 40-50g and 35-45g respectively by terylene chemical fibre, glass fibre, polyphenylene sulfide fibre and Fypro; The length of the various fibrous materials in last filter course and the following filter course is 60-70mm.
In the utility model: described base cloth is the woven cloth of glass fibre, and the weight per unit area of base cloth is 300g/m
2
In the utility model: described maceration extract is made up of ptfe emulsion, 285-1 polymethylphenyl siloxane fluid emulsion and water, and their weight ratio is 12: 4: 59.
In the utility model: the specification of described terylene chemical fibre is 2.5d-2.8d, the specification of glass fibre is 5d-7d, the specification of polyphenylene sulfide fibre is 2d-2.5d, the specification of Fypro is 5d-7d, the specification of polytetrafluoroethylene fibre is 5d-7d, the length of described fibrous material is 60mm-70mm, is overlying on base cloth upper surface and lower surface and is respectively 220-230g/m as the weight per unit area of the filter felt of filter course
2And 190-200g/m
2
Advantage of the present utility model is: because the terylene chemical fibre has very strong coherent, glass fibre has resistant to elevated temperatures characteristics, polyphenylene sulfide fibre has stronger corrosion-resistant, resistance and high temperature resistance property, in as filter course, use four kinds or five kinds of fibers in terylene chemical fibre, glass fibre, polyphenylene sulfide fibre, Fypro and the polytetrafluoroethylene fibre simultaneously, both can remedy the deficiency in the use of PPS Nomex, can avoid the exigent drawback of PTFE Nomex again, reduce the enterprise operation cost equipment for after-treatment; Estimate service life of the present utility model can reach more than 3 years.
Description of drawings:
Fig. 1 is the section structure schematic diagram of the utility model embodiment
Among the figure: 1, base cloth, 2, go up filter course, 3, filter course down, 4, poly tetrafluoroethylene.
The specific embodiment
As seen from Figure 1, section structure of the present invention is all to cover filter felt on the upper and lower surface of base cloth 1, and wherein: the filter felt that is overlying on upper surface is the last filter course 2 of dust-collecting face, and the filter felt that is overlying on lower surface is following filter course 3; Be covered with poly tetrafluoroethylene 4 on the surface of last filter course.
The filter felt of last filter course 2 is to make after evenly being mixed by every square metre of 55-65g, 45-55g, 40-50g, 35-45g and 30-40g respectively by terylene chemical fibre, glass fibre, polyphenylene sulfide fibre, Fypro and polytetrafluoroethylene fibre.The filter felt of following filter course 3 is to make after evenly being mixed by every square metre of 55-65g, 45-55g, 40-50g and 35-45g respectively by terylene chemical fibre, glass fibre, polyphenylene sulfide fibre and Fypro; The length of the various fibrous materials in last filter course 2 and the following filter course 3 is 60mm-70mm.
The result of use contrast of the utility model and PPS Nomex and PTFE Nomex filtering material:
| Filtering material | Specification | Service time | Filter efficiency | Continue heatproof | Moment heatproof | Unit cost |
| The present invention | ￠130×2450 | 36 months | 99.8％ | 270℃ | 280℃ | 98 yuan |
| The PPS filtrate | ￠130×2450 | 18 months | 99.8％ | 190℃ | 220℃ | 140 yuan |
| The PTFE filtrate | ￠130×2450 | 36 months | 99.8％ | 200℃ | 230℃ | 327 yuan |
Claims (3)
1. corrosion-resisting and heat-resisting compound filter material, comprise base cloth and filter felt, it is characterized in that: the upper and lower surface of base cloth all is covered with filter felt, and wherein: the filter felt that is overlying on upper surface is the last filter course of dust-collecting face, and the filter felt that is overlying on lower surface is following filter course; Surface at last filter course is covered with poly tetrafluoroethylene; Described base cloth is through the maceration extract impregnation process; The length of fibrous material is 60-70mm in last filter course and the following filter course.
2. corrosion-resisting and heat-resisting compound filter material according to claim 1 is characterized in that: described base cloth is the woven cloth of glass fibre, and the weight per unit area of base cloth is 300g/m
2
3. corrosion-resisting and heat-resisting compound filter material according to claim 1 and 2 is characterized in that: the weight per unit area of going up filter course is 220-230g/m
2The weight per unit area of following filter course is 190-200g/m
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202737310U CN201889126U (en) | 2010-07-28 | 2010-07-28 | Corrosion-resisting and heat resisting composite filter material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202737310U CN201889126U (en) | 2010-07-28 | 2010-07-28 | Corrosion-resisting and heat resisting composite filter material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201889126U true CN201889126U (en) | 2011-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202737310U Expired - Fee Related CN201889126U (en) | 2010-07-28 | 2010-07-28 | Corrosion-resisting and heat resisting composite filter material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201889126U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105709499A (en) * | 2016-01-28 | 2016-06-29 | 苏州辉龙净化过滤有限公司 | High-temperature-resistant aramid filter cloth capable of facilitating dust removing and preparation method thereof |
| CN106582112A (en) * | 2016-11-04 | 2017-04-26 | 中材科技股份有限公司 | Flue gas purifying filter material for semi-dry desulphurization and preparation method thereof |
| CN110733212A (en) * | 2019-10-31 | 2020-01-31 | 南通市辉鑫玻璃纤维有限公司 | glass fiber membranes and preparation method thereof |
| US10859204B2 (en) * | 2018-05-29 | 2020-12-08 | Taiyuan University Of Technology | Hoisting sheave shaft, hoisting sheave and lubricating device thereof |
-
2010
- 2010-07-28 CN CN2010202737310U patent/CN201889126U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105709499A (en) * | 2016-01-28 | 2016-06-29 | 苏州辉龙净化过滤有限公司 | High-temperature-resistant aramid filter cloth capable of facilitating dust removing and preparation method thereof |
| CN105709499B (en) * | 2016-01-28 | 2020-02-07 | 苏州辉龙净化过滤有限公司 | Aramid fiber high-temperature-resistant filter cloth with easy ash removal function and preparation method thereof |
| CN106582112A (en) * | 2016-11-04 | 2017-04-26 | 中材科技股份有限公司 | Flue gas purifying filter material for semi-dry desulphurization and preparation method thereof |
| CN106582112B (en) * | 2016-11-04 | 2019-04-16 | 中材科技股份有限公司 | A kind of semi-dry desulphurization gas cleaning filtrate and preparation method thereof |
| US10859204B2 (en) * | 2018-05-29 | 2020-12-08 | Taiyuan University Of Technology | Hoisting sheave shaft, hoisting sheave and lubricating device thereof |
| CN110733212A (en) * | 2019-10-31 | 2020-01-31 | 南通市辉鑫玻璃纤维有限公司 | glass fiber membranes and preparation method thereof |
| CN110733212B (en) * | 2019-10-31 | 2021-06-01 | 南通市辉鑫玻璃纤维有限公司 | Glass fiber membrane and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20140728 |
|
| EXPY | Termination of patent right or utility model |