CN105152552A - Method for improving high temperature resistance of E glass fiber filtration material - Google Patents
Method for improving high temperature resistance of E glass fiber filtration material Download PDFInfo
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- CN105152552A CN105152552A CN201510391644.2A CN201510391644A CN105152552A CN 105152552 A CN105152552 A CN 105152552A CN 201510391644 A CN201510391644 A CN 201510391644A CN 105152552 A CN105152552 A CN 105152552A
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- glass fiber
- filter material
- fiber filter
- treatment
- elevated temperatures
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Abstract
The invention discloses a method for improving the high temperature resistance of an E glass fiber filtration material. The method comprises the three steps of: acid leaching treatment, washing and drying, and surface treatment. Compared with the prior art, the high temperature E glass fiber filtration material prepared by the technology has good strength, good air permeability, good wear resistance and folding performance, and can tolerate 300DEG C-500DEG C grade high temperature flue gas, i.e. the highest temperature resistance grade of current E glass fiber filtration materials, thus being a high cost performance high temperature filter material.
Description
Technical field
The present invention relates to high-temperature flue gas processing technology field, in particular a kind of method improving E glass fiber filter material resistance to elevated temperatures.
Background technology
The current filtering high-temperature flue gas dedusting of China uses filtering material to be mainly E glass fiber filter material.It has comparatively high performance-price ratio, is that world today's consumption is maximum, most popular filtering material.But E glass fibre resistance to elevated temperatures is still not enough, instantaneous heatproof 300 DEG C, Long-term service temperature is 260 ~ 280 DEG C, so for higher than 300 DEG C of flue gas ash removals, E glass fiber filter material is not competent, the filtering material of resistance to higher temperature can only be found, but it is not enough also to there are some performances in these high-temperature-resistant filtering materials, although such as high silicon chlorine glass fibre can resistance to more than 800 DEG C high temperature, but its intensity is low, discomfort is fit to do high-temperature filtering material, moreover its price is more than 5 ~ 8 times, E glass fibre, and general industry dedusting should can not afford.For another example basalt fibre, can be resistance to more than 500 DEG C, but it is not enough also to there is many performances, and its production efficiency is low, is difficult to industrialized production, and price is also much expensive than E glass fibre, so seldom apply in high temperature fume dust removal.Due to some characteristics such as E glass fiber component, structures, (in E glass fibre, there is SiO
2intensive phase and non-SiO
2disperse phase), can adopt some treatment processs, (E glass fibre in acid solution, in Na+ and acid solution, H+ carries out ion-exchange, part that can be removed Na to improve its temperature resistant grade
2o, B
2o
3etc. non-SiO
2component, thus improve SiO in fiber
2content, improves E glass fibre temperature resistant grade), can be retained again it as filtering material good characteristic, make it can apply in 300 DEG C ~ 500 DEG C high temperature fume dust removal fields.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of method improving E glass fiber filter material resistance to elevated temperatures.
The present invention is achieved by the following technical solutions: a kind of method improving E glass fiber filter material resistance to elevated temperatures, is characterized in that comprising the following steps:
Step one, the process of acidleach drop: the process of acidleach drop is carried out to E glass fiber filter material, makes SiO in E glass fibre
2mass percentage content is increased to 60% ~ 70%;
Step 2, washing are dried: wash the E glass fiber filter material through acidleach drop, remove remained on surface acid solution, then carry out drying treatment, remove surface-moisture.
Step 3, surface treatment: use surface chemical treatment agent to carry out chemical conversion treatment to the E glass fiber filter material obtained of step 2 process.
As further improvement of these options, in described step one, use hydrochloric acid as the treatment agent of acidleach drop process, concentration of hydrochloric acid is 5%, and treatment temp is 70 DEG C ~ 80 DEG C, treatment time 10min ~ 15min.
As further improvement of these options, described step 2 and then step one is carried out, and carries out step 2 operation immediately after step one completes, and water washing operations is continuous washing three times.
As further improvement of these options, containing mass percent in the surface chemical treatment agent used in described step 3 is the silane coupling agent of 0.5 ~ 3%.
As further improvement of these options, described silane coupling agent is one or more the combination in KH550, Z6040 or A171.
The present invention has the following advantages compared to existing technology: can obtain a kind of resistance to 300 DEG C ~ 500 DEG C ultrahigh-temperature E glass fiber filter materials by the present invention.Common E glass fiber filter material Long-term service temperature is 260 DEG C ~ 280 DEG C, can only be used for the industrial high-temperature flue gas dust removal field lower than 300 DEG C.The filtering material that temperature resistant grade is higher can only be selected for higher than 300 DEG C of hot industry flue gases, as high silica fiber and basalt fibre, but high silica fiber is expensive, general industry department can not afford, although and basalt fibre ability 500 DEG C of high temperature, but its strainability is also unsatisfactory, and price is also far above GF, and thus there be limited evidence currently of is applied on filtering material.A kind of high SiO can be obtained by scheme provided by the present invention
2the E glass fibre of content, they can resistance to 300 DEG C ~ 500 DEG C high temperature, have very high cost performance.
Embodiment
Elaborate to embodiments of the invention below, the present embodiment is implemented under premised on technical solution of the present invention, give detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Embodiment 1
Improve a method for E glass fiber filter material resistance to elevated temperatures, it is characterized in that comprising the following steps:
Step one, the process of acidleach drop: the process of acidleach drop is carried out to E glass fiber filter material, makes SiO in E glass fibre
2mass percentage content is increased to 60% ~ 70%; Due to some characteristics such as E glass fiber component, structures, (in E glass fibre, there is SiO
2intensive phase and non-SiO
2disperse phase), the method for acidleach drop process can be adopted, improve its temperature resistant grade (E glass fibre in acid solution, Na
+with H in acid solution
+carry out ion-exchange, part that can be removed Na
2o, B
2o
3etc. non-SiO
2component, thus improve SiO in fiber
2content, improves E glass fibre temperature resistant grade), can be retained again it as filtering material good characteristic, make it can apply in 300 DEG C ~ 500 DEG C high temperature fume dust removal fields.
Step 2, washing are dried: wash the E glass fiber filter material through acidleach drop, remove remained on surface acid solution, then carry out drying treatment, remove surface-moisture.
Step 3, surface treatment: use surface chemical treatment agent to carry out chemical conversion treatment to the E glass fiber filter material obtained of step 2 process.After drying through acidleach drop and washing, E fiberglass surfacing treating compound has been removed totally, for its wear-resisting folding quality given by protective glass fiber, and some other strainability, need to carry out chemical conversion treatment to it.
In step one, use hydrochloric acid as the treatment agent of acidleach drop process, concentration of hydrochloric acid is 5%, and treatment temp is 80 DEG C, treatment time 10min.
Step 2 and then step one is carried out, and carries out step 2 operation immediately after step one completes, and water washing operations is continuous washing three times.
Containing mass percent in the surface chemical treatment agent used in step 3 is the silane coupling agent of 0.5.E glass fibre is through acidleach drop, and intensity declines to some extent, preferably adds the silane coupling agent of 0.5, can improve some chemical composition cohesive forces in E glass fibre and treatment agent, and then improve its mechanical property in treatment solution.
Silane coupling agent is one or more the combination in KH550, Z6040 or A171.
By the enforcement of above-mentioned Technology, prepare high temperature E glass fiber filter material, it is good that it possesses intensity, good permeability, wear-resisting folding quality is better, can resistance to 300 DEG C ~ 500 DEG C grade high-temperature flue gas filtration materials, is the most high-temperature resistant grade of current E glass fiber filter material.For the high-temperature-resistant filtering material that a kind of cost performance is high.
Embodiment 2
Improve a method for E glass fiber filter material resistance to elevated temperatures, it is characterized in that comprising the following steps:
Step one, the process of acidleach drop: the process of acidleach drop is carried out to E glass fiber filter material, makes SiO in E glass fibre
2mass percentage content is increased to 60% ~ 70%; Due to some characteristics such as E glass fiber component, structures, (in E glass fibre, there is SiO
2intensive phase and non-SiO
2disperse phase), the method for acidleach drop process can be adopted, improve its temperature resistant grade (E glass fibre in acid solution, Na
+with H in acid solution
+carry out ion-exchange, part that can be removed Na
2o, B
2o
3etc. non-SiO
2component, thus improve SiO in fiber
2content, improves E glass fibre temperature resistant grade), can be retained again it as filtering material good characteristic, make it can apply in 300 DEG C ~ 500 DEG C high temperature fume dust removal fields.
Step 2, washing are dried: wash the E glass fiber filter material through acidleach drop, remove remained on surface acid solution, then carry out drying treatment, remove surface-moisture.
Step 3, surface treatment: use surface chemical treatment agent to carry out chemical conversion treatment to the E glass fiber filter material obtained of step 2 process.After drying through acidleach drop and washing, E fiberglass surfacing treating compound has been removed totally, for its wear-resisting folding quality given by protective glass fiber, and some other strainability, need to carry out chemical conversion treatment to it.
In step one, use hydrochloric acid as the treatment agent of acidleach drop process, concentration of hydrochloric acid is 5%, and treatment temp is 70 DEG C, treatment time 10min.
Step 2 and then step one is carried out, and carries out step 2 operation immediately after step one completes, and water washing operations is continuous washing three times.
Containing mass percent in the surface chemical treatment agent used in step 3 is the silane coupling agent of 0.5.E glass fibre is through acidleach drop, and intensity declines to some extent, preferably adds the silane coupling agent of 0.5, can improve some chemical composition cohesive forces in E glass fibre and treatment agent, and then improve its mechanical property in treatment solution.
Silane coupling agent is that KH550 and Z6040 is used in combination.
By the enforcement of above-mentioned Technology, prepare high temperature E glass fiber filter material, it is good that it possesses intensity, good permeability, wear-resisting folding quality is better, can resistance to 300 DEG C ~ 500 DEG C grade high-temperature flue gas filtration materials, is the most high-temperature resistant grade of current E glass fiber filter material.For the high-temperature-resistant filtering material that a kind of cost performance is high.
Embodiment 3
Improve a method for E glass fiber filter material resistance to elevated temperatures, it is characterized in that comprising the following steps:
Step one, the process of acidleach drop: the process of acidleach drop is carried out to E glass fiber filter material, makes SiO in E glass fibre
2mass percentage content is increased to 60% ~ 70%; Due to some characteristics such as E glass fiber component, structures, (in E glass fibre, there is SiO
2intensive phase and non-SiO
2disperse phase), the method for acidleach drop process can be adopted, improve its temperature resistant grade (E glass fibre in acid solution, Na
+with H in acid solution
+carry out ion-exchange, part that can be removed Na
2o, B
2o
3etc. non-SiO
2component, thus improve SiO in fiber
2content, improves E glass fibre temperature resistant grade), can be retained again it as filtering material good characteristic, make it can apply in 300 DEG C ~ 500 DEG C high temperature fume dust removal fields.
Step 2, washing are dried: wash the E glass fiber filter material through acidleach drop, remove remained on surface acid solution, then carry out drying treatment, remove surface-moisture.
Step 3, surface treatment: use surface chemical treatment agent to carry out chemical conversion treatment to the E glass fiber filter material obtained of step 2 process.After drying through acidleach drop and washing, E fiberglass surfacing treating compound has been removed totally, for its wear-resisting folding quality given by protective glass fiber, and some other strainability, need to carry out chemical conversion treatment to it.
In step one, use hydrochloric acid as the treatment agent of acidleach drop process, concentration of hydrochloric acid is 5%, and treatment temp is 80 DEG C, treatment time 15min.
Step 2 and then step one is carried out, and carries out step 2 operation immediately after step one completes, and water washing operations is continuous washing three times.
Containing mass percent in the surface chemical treatment agent used in step 3 is the silane coupling agent of 3%.E glass fibre is through acidleach drop, and intensity declines to some extent, preferably adds the silane coupling agent of 3%, can improve some chemical composition cohesive forces in E glass fibre and treatment agent, and then improve its mechanical property in treatment solution.
Silane coupling agent is that KH550, Z6040 and A171 tri-kinds combinationally uses.
By the enforcement of above-mentioned Technology, prepare high temperature E glass fiber filter material, it is good that it possesses intensity, good permeability, wear-resisting folding quality is better, can resistance to 300 DEG C ~ 500 DEG C grade high-temperature flue gas filtration materials, is the most high-temperature resistant grade of current E glass fiber filter material.For the high-temperature-resistant filtering material that a kind of cost performance is high.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. improve a method for E glass fiber filter material resistance to elevated temperatures, it is characterized in that comprising the following steps:
Step one, the process of acidleach drop: the process of acidleach drop is carried out to E glass fiber filter material, makes SiO in E glass fibre
2mass percentage content is increased to 60% ~ 70%;
Step 2, washing are dried: wash the E glass fiber filter material through acidleach drop, remove remained on surface acid solution, then carry out drying treatment, remove surface-moisture.
Step 3, surface treatment: use surface chemical treatment agent to carry out chemical conversion treatment to the E glass fiber filter material obtained of step 2 process.
2. a kind of method improving E glass fiber filter material resistance to elevated temperatures as claimed in claim 1, it is characterized in that: in described step one, use hydrochloric acid as the treatment agent of acidleach drop process, concentration of hydrochloric acid is 5%, treatment temp is 70 DEG C ~ 80 DEG C, treatment time 10min ~ 15min.
3. a kind of method improving E glass fiber filter material resistance to elevated temperatures as claimed in claim 1, it is characterized in that: described step 2 and then step one is carried out, and carries out step 2 operation immediately after step one completes, water washing operations is continuous washing three times.
4. a kind of method improving E glass fiber filter material resistance to elevated temperatures as claimed in claim 1, is characterized in that: be the silane coupling agent of 0.5 ~ 3% containing mass percent in the surface chemical treatment agent used in described step 3.
5. a kind of method improving E glass fiber filter material resistance to elevated temperatures as claimed in claim 4, is characterized in that: described silane coupling agent is one or more the combination in KH550, Z6040 or A171.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510391644.2A CN105152552A (en) | 2015-07-02 | 2015-07-02 | Method for improving high temperature resistance of E glass fiber filtration material |
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|---|---|---|---|
| CN201510391644.2A CN105152552A (en) | 2015-07-02 | 2015-07-02 | Method for improving high temperature resistance of E glass fiber filtration material |
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| CN105152552A true CN105152552A (en) | 2015-12-16 |
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ID=54793673
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| CN201510391644.2A Pending CN105152552A (en) | 2015-07-02 | 2015-07-02 | Method for improving high temperature resistance of E glass fiber filtration material |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105879494A (en) * | 2016-04-22 | 2016-08-24 | 苏州派欧技术咨询服务有限公司 | Preparation method of high-temperature-resistant filter felt |
| CN106268021A (en) * | 2016-08-31 | 2017-01-04 | 甘婷 | A kind of special fibre filtering material with glass fibre as matrix |
| CN107376509A (en) * | 2017-08-21 | 2017-11-24 | 营口凯悦滤业科技有限公司 | The preparation method of the superfine modified glass fiber filter material of fluorine silica |
| CN108793776A (en) * | 2018-05-29 | 2018-11-13 | 南京晓庄学院 | A kind of method and device of cellucotton acid leach processing |
| CN109200673A (en) * | 2018-10-15 | 2019-01-15 | 安徽省绩溪华林环保科技股份有限公司 | A kind of preparation method of novel fire resistant glass fiber filter material |
| CN110981223A (en) * | 2019-12-18 | 2020-04-10 | 安徽省宁国昊成高温材料有限公司 | High-temperature-resistant glass fiber and preparation method thereof |
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| JPH07172876A (en) * | 1991-11-26 | 1995-07-11 | Nichias Corp | Method for improving heat resistance of e-glass fiber |
| CN103203132A (en) * | 2013-04-23 | 2013-07-17 | 宋朋泽 | Method for preparing high-silica fiber composite filter material |
| CN104310803A (en) * | 2014-10-10 | 2015-01-28 | 青岛海信电器股份有限公司 | Glass fiber, surface treatment method of glass fiber, plastic and shell |
| CN104328579A (en) * | 2014-08-27 | 2015-02-04 | 安徽丹凤电子材料股份有限公司 | Preparation process of glass fiber cloth |
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2015
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| JPH07172876A (en) * | 1991-11-26 | 1995-07-11 | Nichias Corp | Method for improving heat resistance of e-glass fiber |
| CN103203132A (en) * | 2013-04-23 | 2013-07-17 | 宋朋泽 | Method for preparing high-silica fiber composite filter material |
| CN104328579A (en) * | 2014-08-27 | 2015-02-04 | 安徽丹凤电子材料股份有限公司 | Preparation process of glass fiber cloth |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105879494A (en) * | 2016-04-22 | 2016-08-24 | 苏州派欧技术咨询服务有限公司 | Preparation method of high-temperature-resistant filter felt |
| CN105879494B (en) * | 2016-04-22 | 2019-02-12 | 苏州宏久航空防热材料科技有限公司 | A kind of high temperature resistant filter felt preparation method |
| CN106268021A (en) * | 2016-08-31 | 2017-01-04 | 甘婷 | A kind of special fibre filtering material with glass fibre as matrix |
| CN107376509A (en) * | 2017-08-21 | 2017-11-24 | 营口凯悦滤业科技有限公司 | The preparation method of the superfine modified glass fiber filter material of fluorine silica |
| CN107376509B (en) * | 2017-08-21 | 2019-08-13 | 辽宁凯富环保科技集团有限公司 | The preparation method of the superfine modified glass fiber filter material of fluorine silicon oxygen |
| CN108793776A (en) * | 2018-05-29 | 2018-11-13 | 南京晓庄学院 | A kind of method and device of cellucotton acid leach processing |
| CN108793776B (en) * | 2018-05-29 | 2023-11-07 | 南京晓庄学院 | Method and device for acid leaching treatment of fiber cotton |
| CN109200673A (en) * | 2018-10-15 | 2019-01-15 | 安徽省绩溪华林环保科技股份有限公司 | A kind of preparation method of novel fire resistant glass fiber filter material |
| CN110981223A (en) * | 2019-12-18 | 2020-04-10 | 安徽省宁国昊成高温材料有限公司 | High-temperature-resistant glass fiber and preparation method thereof |
| CN110981223B (en) * | 2019-12-18 | 2022-05-03 | 安徽省宁国昊成高温材料有限公司 | High-temperature-resistant glass fiber and preparation method thereof |
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Address after: 245300 No. 6, Hong Chuan Road, Jixi eco industrial park, Xuancheng, Anhui Applicant after: Jixi Anhui Hualin environmental protection Polytron Technologies Inc Address before: 245300 No. 6, Hong Chuan Road, Jixi eco industrial park, Xuancheng, Anhui Applicant before: Anhui Jixi Hualin Fiberglass Co., Ltd. |
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Application publication date: 20151216 |
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| RJ01 | Rejection of invention patent application after publication |