CN105133193A - Needle hole sealing technology of polyphenylene sulfide compound filter material - Google Patents
Needle hole sealing technology of polyphenylene sulfide compound filter material Download PDFInfo
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- CN105133193A CN105133193A CN201510433785.6A CN201510433785A CN105133193A CN 105133193 A CN105133193 A CN 105133193A CN 201510433785 A CN201510433785 A CN 201510433785A CN 105133193 A CN105133193 A CN 105133193A
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- pinprick
- adhesive tape
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- polyphenylene sulfide
- filtering material
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Abstract
The invention discloses a needle hole sealing technology of a polyphenylene sulfide compound filter material. The technology comprises the following steps: using a blancher to uniformly scald a polytetrafluoroethylene composite adhesive tape on lap seam lines of a polyphenylene sulfide compound filter material bag, completely covering needle holes and lap joint side seams, the polytetrafluoroethylene composite adhesive tape comprising a polytetrafluoroethylene substrate and a hot melting layer on the polytetrafluoroethylene substrate. The hot melting layer is ethylene-vinyl acetate copolymer hot melt adhesive. The needle hole sealing technology of a polyphenylene sulfide compound filter material can improve filtering effect and service life of a PPS compound filter material bag, and satisfies actual use requirements.
Description
Technical field
The present invention relates to a kind of pinprick sealing technology of polyphenylene sulfide composite filtering material, belong to industry environmental protection dedusting filtering bag product processing technique field.
Background technology
China is coal-fired big country, and coal can discharge the pollutants such as a large amount of toxic gases and dust in the process of burning.At present, it is sack cleaner or the electric-bag complex dust collector of core that the capital equipment that China controls the discharge of coal fired thermal power plant burning dust granules is changed into by simple electric cleaner in the past gradually with filter bag, thus reaches the requirement of minimum discharge.The most frequently used filter bag of current power plant is PPS(polyphenylene sulfide) compound filter bag, its advantage is: the place being suitable for sulphur coal uses, there is higher corrosion-resistant, resistance to elevated temperatures simultaneously, and under being applicable to oxygen content working condition, and serviceability temperature and the oxidation resistent susceptibility of filter bag can be improved, cost performance is high.But, along with the further raising that national environmental standard requires for dust emission concentration, sack cleaner efficiency of dust collection also urgently improves thereupon further, although concrete policy is not put into effect, but enterprise explicitly calls for dust removing effects to reach ultralow ultra-clean discharge, concentration of emission controls below 10 milligrams, is a challenge for the selection of filtrate and the processing of filter bag.Traditional filter bag, bag body filtering accuracy is high, but suture pinprick place, latasuture there will be the phenomenon of leaking grey dust stratification, has had a strong impact on the service life of filter bag, limits the discharge precision of filter bag simultaneously; Therefore be necessary to make existing compound filter bag processing technology to improve further, to overcome the problems referred to above.
Summary of the invention
The present invention for the deficiency that prior art exists, provides a kind of pinprick sealing technology of PPS composite filtering material, overcomes the deficiencies in the prior art just, improves filter effect and the service life of PPS composite filtering material filter bag, meets actual operation requirements.
For solving the problem, the technical solution used in the present invention is as follows:
A kind of pinprick sealing technology of PPS composite filtering material, comprise the following steps: by blancher by PTFE(polytetrafluoroethylene (PTFE)) compound adhesive tape equably blanching at the overlap joint suture place of PPS composite filtering material filter bag, cover pinprick and overlap joint latasuture completely, described PTFE compound adhesive tape comprises PTFE base material and is arranged at the hot melt adhesive layer on described PTFE base material, and described hot melt adhesive layer is EVA(ethylene-vinyl acetate copolymer) hot melt adhesive.
As technique scheme concrete preferably, the width of described PTFE compound adhesive tape is 2 ~ 5 centimetres, and the thickness of described PTFE compound adhesive tape is 0.2 ~ 0.5 millimeter.
As technique scheme concrete preferably, described PTFE compound adhesive tape is 0.5 ~ 1.0 centimetre towards the edge of pinprick side and the distance of pinprick, and described PTFE compound adhesive tape is also 0.5 ~ 1.0 centimetre towards the edge of overlap joint latasuture side with the distance of overlap joint latasuture.
As technique scheme concrete preferably, the thickness of described PTFE base material is 0.1 ~ 0.2 millimeter, and the thickness of described hot melt adhesive layer is 0.1 ~ 0.3 millimeter.
As technique scheme concrete preferably, the heat iron temperature of blancher is 390 ~ 410 DEG C, and operating pressure is 0.45 ~ 0.60Mpa, and the blanching speed of blancher is 6 ~ 12 ms/min.
Compared with prior art, the pinprick sealing technology of a kind of PPS composite filtering material of the present invention has following beneficial effect:
1, use the PPS composite filtering material filter bag of explained hereafter of the present invention, make filter bag relative to traditional coating silica gel, solve silica gel coating uneven, penetrate into the defect of pin hole inside, significantly improve the drawback that pin hole leaks ash;
2, use the PPS composite filtering material filter bag of explained hereafter of the present invention, make filter bag relative to traditional coating silica gel, solve the defect of latasuture dust stratification;
3, the PPS composite filtering material filter bag of explained hereafter of the present invention, makes filter bag relative to traditional coating silica gel, effectively prevent the time of silica dehydrator, substantially increase production efficiency;
4, the PTFE compound adhesive tape that uses of the present invention, can use continuously under 250 ~ 300 DEG C of conditions, adhesive tape does not split film, not brittle, is applicable to the working condition of power plant completely.
Accompanying drawing explanation
Fig. 1 is that blanching adhesive tape and common pinprick and the gas permeability applying silica gel test block diagram;
Fig. 2 is the structural representation that PTFE compound adhesive tape of the present invention covers pinprick and overlap joint latasuture; Wherein, 1 is PPS composite filtering material filter bag, and 2 is PTFE compound adhesive tape.
Detailed description of the invention
Below in conjunction with specific embodiments content of the present invention is described.
specific embodiment 1
The pinprick sealing technology of a kind of PPS composite filtering material that the present embodiment provides, comprises the following steps:
Step one, by high temperature resistant, acid-alkali-corrosive-resisting PTFE compound adhesive tape overlaps the needs of suture actual size according to the PPS composite filtering material filter bag preparation technology of the PPS composite filtering material filter bag (can with reference to Chinese patent literature CN103961939B), be cut into the specification that width is 2 ~ 5 centimetres, and described PTFE compound adhesive tape is by thickness, and to be the PTFE base material of 0.1 millimeter and thickness be that the hot melt adhesive layer of 0.1 millimeter is formed, the main constituent of described hot melt adhesive layer is EVA hot-melt adhesive, according to known EVA hot-melt adhesive formula also containing a small amount of tackifier, viscosity modifier, the compositions such as antioxidant.
Step 2, as shown in Figure 2, the PTFE compound adhesive tape that step one is obtained is covered the overlap joint suture place of PPS composite filtering material filter bag, cover pinprick and overlap joint latasuture completely, and making described PTFE compound adhesive tape be 0.5 ~ 1.0 centimetre towards the edge of pinprick side and the distance of pinprick, described PTFE compound adhesive tape is also 0.5 ~ 1.0 centimetre towards the edge of overlap joint latasuture side with the distance of overlap joint latasuture.
Step 3, the heat iron temperature of blancher is set to 390 DEG C, operating pressure is set to 0.45Mpa, then the PPS composite filtering material filter bag complete blanching of PTFE compound adhesive tape with overlap joint suture place is bonded together with the blanching speed of 6 ms/min.
The filter bag obtained prepared by the pinprick sealing technology of above-mentioned a kind of PPS composite filtering material, its performance test results is as shown in the table:
specific embodiment 2
The pinprick sealing technology of a kind of PPS composite filtering material that the present embodiment provides, comprises the following steps:
Step one, by high temperature resistant, acid-alkali-corrosive-resisting PTFE compound adhesive tape overlaps the needs of suture actual size according to the PPS composite filtering material filter bag preparation technology of the PPS composite filtering material filter bag (can with reference to Chinese patent literature CN103961939B), be cut into the specification that width is 2 ~ 5 centimetres, and described PTFE compound adhesive tape is by thickness, and to be the PTFE base material of 0.2 millimeter and thickness be that the hot melt adhesive layer of 0.3 millimeter is formed, the main constituent of described hot melt adhesive layer is EVA hot-melt adhesive, according to known EVA hot-melt adhesive formula also containing a small amount of tackifier, viscosity modifier, the compositions such as antioxidant.
Step 2, as shown in Figure 2, the PTFE compound adhesive tape that step one is obtained is covered the overlap joint suture place of PPS composite filtering material filter bag, cover pinprick and overlap joint latasuture completely, and making described PTFE compound adhesive tape be 0.5 ~ 1.0 centimetre towards the edge of pinprick side and the distance of pinprick, described PTFE compound adhesive tape is also 0.5 ~ 1.0 centimetre towards the edge of overlap joint latasuture side with the distance of overlap joint latasuture.
Step 3, the heat iron temperature of blancher is set to 410 DEG C, operating pressure is set to 0.60Mpa, then the PPS composite filtering material filter bag complete blanching of PTFE compound adhesive tape with overlap joint suture place is bonded together with the blanching speed of 12 ms/min.
The filter bag obtained prepared by the pinprick sealing technology of above-mentioned a kind of PPS composite filtering material, its performance test results is as shown in the table:
specific embodiment 3
The pinprick sealing technology of a kind of PPS composite filtering material that the present embodiment provides, comprises the following steps:
Step one, by high temperature resistant, acid-alkali-corrosive-resisting PTFE compound adhesive tape overlaps the needs of suture actual size according to the PPS composite filtering material filter bag preparation technology of the PPS composite filtering material filter bag (can with reference to Chinese patent literature CN103961939B), be cut into the specification that width is 2 ~ 5 centimetres, and described PTFE compound adhesive tape is by thickness, and to be the PTFE base material of 0.15 millimeter and thickness be that the hot melt adhesive layer of 0.2 millimeter is formed, the main constituent of described hot melt adhesive layer is EVA hot-melt adhesive, according to known EVA hot-melt adhesive formula also containing a small amount of tackifier, viscosity modifier, the compositions such as antioxidant.
Step 2, as shown in Figure 2, the PTFE compound adhesive tape that step one is obtained is covered the overlap joint suture place of PPS composite filtering material filter bag, cover pinprick and overlap joint latasuture completely, and making described PTFE compound adhesive tape be 0.5 ~ 1.0 centimetre towards the edge of pinprick side and the distance of pinprick, described PTFE compound adhesive tape is also 0.5 ~ 1.0 centimetre towards the edge of overlap joint latasuture side with the distance of overlap joint latasuture.
Step 3, the heat iron temperature of blancher is set to 400 DEG C, operating pressure is set to 0.55Mpa, then the PPS composite filtering material filter bag complete blanching of PTFE compound adhesive tape with overlap joint suture place is bonded together with the blanching speed of 8 ms/min.
The filter bag obtained prepared by the pinprick sealing technology of above-mentioned a kind of PPS composite filtering material, its performance test results is as shown in the table:
Above content is detailed description made for the present invention in conjunction with specific embodiments, can not assert that the present invention specifically implements to be only limitted to these explanations.For those skilled in the art, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to the scope of protection of the invention.
Claims (5)
1. the pinprick sealing technology of a polyphenylene sulfide composite filtering material, it is characterized in that, comprise the following steps: by blancher by polytetrafluoroethylene (PTFE) compound adhesive tape equably blanching at the overlap joint suture place of polyphenylene sulfide composite filtering material filter bag, cover pinprick and overlap joint latasuture completely, described polytetrafluoroethylene (PTFE) compound adhesive tape comprises polytetrafluoroethylene (PTFE) base material and is arranged at the hot melt adhesive layer on described polytetrafluoroethylene (PTFE) base material, and described hot melt adhesive layer is ethylene vinyl acetate copolymer hot melt adhesive.
2. the pinprick sealing technology of a kind of polyphenylene sulfide composite filtering material as claimed in claim 1, is characterized in that, the width of described polytetrafluoroethylene (PTFE) compound adhesive tape is 2 ~ 5 centimetres, and the thickness of described polytetrafluoroethylene (PTFE) compound adhesive tape is 0.2 ~ 0.5 millimeter.
3. the pinprick sealing technology of a kind of polyphenylene sulfide composite filtering material as claimed in claim 1 or 2, it is characterized in that, described polytetrafluoroethylene (PTFE) compound adhesive tape is 0.5 ~ 1.0 centimetre towards the edge of pinprick side and the distance of pinprick, and described polytetrafluoroethylene (PTFE) compound adhesive tape is also 0.5 ~ 1.0 centimetre towards the edge of overlap joint latasuture side with the distance of overlap joint latasuture.
4. the pinprick sealing technology of a kind of polyphenylene sulfide composite filtering material as claimed in claim 2, is characterized in that, the thickness of described polytetrafluoroethylene (PTFE) base material is 0.1 ~ 0.2 millimeter, and the thickness of described hot melt adhesive layer is 0.1 ~ 0.3 millimeter.
5. the pinprick sealing technology of a kind of polyphenylene sulfide composite filtering material as claimed in claim 4, is characterized in that, the heat iron temperature of blancher is 390 ~ 410 DEG C, and operating pressure is 0.45 ~ 0.60Mpa, and the blanching speed of blancher is 6 ~ 12 ms/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510433785.6A CN105133193A (en) | 2015-07-21 | 2015-07-21 | Needle hole sealing technology of polyphenylene sulfide compound filter material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510433785.6A CN105133193A (en) | 2015-07-21 | 2015-07-21 | Needle hole sealing technology of polyphenylene sulfide compound filter material |
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| CN105133193A true CN105133193A (en) | 2015-12-09 |
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| CN201510433785.6A Pending CN105133193A (en) | 2015-07-21 | 2015-07-21 | Needle hole sealing technology of polyphenylene sulfide compound filter material |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780305A (en) * | 2016-05-19 | 2016-07-20 | 瑞安市奥雅服饰有限公司 | Vibration type thick material sealing and sewing device |
| CN105970394A (en) * | 2016-07-20 | 2016-09-28 | 苏州耐德新材料科技有限公司 | Composite sewing thread for sewing polyphenylene sulfide filter bags |
| CN106215555A (en) * | 2016-08-26 | 2016-12-14 | 福建鑫华股份有限公司 | The special filter bag without sewing pin hole of a kind of sack cleaner and preparation method |
| CN110732196A (en) * | 2019-12-02 | 2020-01-31 | 重庆毕威环保工程设备有限公司 | Method for transforming electric dust collectors into pulse bag type dust collectors |
| CN112441322A (en) * | 2020-11-19 | 2021-03-05 | 韩先锋 | High-strength stretch-resistant packaging bag |
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| US20060172639A1 (en) * | 2003-03-31 | 2006-08-03 | Toray Industries, Inc., A Corporation Of Japan | Filter medium |
| CN101804273A (en) * | 2010-04-20 | 2010-08-18 | 南京际华三五二一特种装备有限公司 | Specific composite filter material for coal-fired power plant electric bag integration project |
| CN202410412U (en) * | 2011-12-12 | 2012-09-05 | 厦门三维丝环保股份有限公司 | Hot-melting seamless filtering bag |
| CN202460317U (en) * | 2012-03-06 | 2012-10-03 | 必达福环境技术(无锡)有限公司 | Ultrafine dust particle separation and high-temperature-resistance Teflon membrane needled filtering felt |
| CN104436866A (en) * | 2014-10-08 | 2015-03-25 | 上海金由氟材料股份有限公司 | Preparation method of pinhole-free dedusting filter bag |
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2015
- 2015-07-21 CN CN201510433785.6A patent/CN105133193A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20060172639A1 (en) * | 2003-03-31 | 2006-08-03 | Toray Industries, Inc., A Corporation Of Japan | Filter medium |
| CN101804273A (en) * | 2010-04-20 | 2010-08-18 | 南京际华三五二一特种装备有限公司 | Specific composite filter material for coal-fired power plant electric bag integration project |
| CN202410412U (en) * | 2011-12-12 | 2012-09-05 | 厦门三维丝环保股份有限公司 | Hot-melting seamless filtering bag |
| CN202460317U (en) * | 2012-03-06 | 2012-10-03 | 必达福环境技术(无锡)有限公司 | Ultrafine dust particle separation and high-temperature-resistance Teflon membrane needled filtering felt |
| CN104436866A (en) * | 2014-10-08 | 2015-03-25 | 上海金由氟材料股份有限公司 | Preparation method of pinhole-free dedusting filter bag |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105780305A (en) * | 2016-05-19 | 2016-07-20 | 瑞安市奥雅服饰有限公司 | Vibration type thick material sealing and sewing device |
| CN105970394A (en) * | 2016-07-20 | 2016-09-28 | 苏州耐德新材料科技有限公司 | Composite sewing thread for sewing polyphenylene sulfide filter bags |
| CN105970394B (en) * | 2016-07-20 | 2018-09-21 | 苏州耐德新材料科技有限公司 | A kind of composite material sewing thread for sewing polyphenylene sulfide filter bag |
| CN106215555A (en) * | 2016-08-26 | 2016-12-14 | 福建鑫华股份有限公司 | The special filter bag without sewing pin hole of a kind of sack cleaner and preparation method |
| CN110732196A (en) * | 2019-12-02 | 2020-01-31 | 重庆毕威环保工程设备有限公司 | Method for transforming electric dust collectors into pulse bag type dust collectors |
| CN112441322A (en) * | 2020-11-19 | 2021-03-05 | 韩先锋 | High-strength stretch-resistant packaging bag |
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Address after: 230000, Anhui, Hefei New Station District North Community on the west side of the White Road Applicant after: ANHUI YUANCHEN ENVIRONMENT PROTECTION TECHNOLOGY CO., LTD. Address before: 230000, Anhui, Hefei New Station District North Community on the west side of the White Road Applicant before: Anhui YuanChen Environmental Protention Science and Technology Co., Ltd. |
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Application publication date: 20151209 |
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