CN103239938A - Production method of dust collector tectorial membrane filter material - Google Patents
Production method of dust collector tectorial membrane filter material Download PDFInfo
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- CN103239938A CN103239938A CN 201210031648 CN201210031648A CN103239938A CN 103239938 A CN103239938 A CN 103239938A CN 201210031648 CN201210031648 CN 201210031648 CN 201210031648 A CN201210031648 A CN 201210031648A CN 103239938 A CN103239938 A CN 103239938A
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- ptfe
- filter material
- production method
- tectorial membrane
- emulsion
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Abstract
The invention discloses a production method of a dust collector tectorial membrane filter material. The production method comprises the following steps of: (1) manufacturing a needle felt, wherein a PTFE (polytetrafluoroethylene) raw material belt is subjected to wire drawing to manufacture PTFE lines and break lines, and the PTFE lines are woven to form PTFE base cloth, and the break lines generated by wire drawing treatment are needled onto the PTFE base cloth according to pre-needling and main needling steps; (2) manufacturing a PTFE tectorial membrane, wherein the base cloth is subjected to derosination at 180 DEG C and longitudinal drawing with longitudinal drawing tension of 4.5MPa and drawing ratio of three, then is subjected to horizontal drawing at 150 DEG C and at a drawing speed of 70-90 mm/s, and finally, is subjected to heat setting at 190 DEG C; (3), spraying perfluoroethylene emulsion on the surface of the PTFE tectorial membrane; and (4) carrying out hot-pressing compounding on the PTFE thin membrane and the PTFE needled felt base material at a hot roller temperature of 220 DEG C and a hot roller pressure of 3.3kg/cm<2>, thus obtaining the PTFE tectorial membrane filter material.
Description
Technical field
The present invention relates to a kind of industrial dedusting filtrate, relate in particular to a kind of production method of dust catcher coated filter material.
Background technology
As the critical component of sack cleaner, the exploitation of filtrate is one of focus of present bag type dust removing technology research.At present, the filtrate that is used for industrial dedusting mainly is to make by covering the PTFE film filtering material on the base material, and the filtrate base material of normal use is that nonwoven or glass cover at present.
The non-woven fabrics base material filtrate is used for the industrial dedusting weak effect, glass base material filtrate good dedusting effect, but service life is short; In addition, use the sack cleaner of traditional filtrate in operating process, exist filtration resistance high and fluctuation in time is big, for low, the anti-cleaning frequency height of fine dust filter efficiency, shortcomings such as the filtrate peritonaeum comes off easily, unstable properties, influence dust removing effects, strengthen the working service cost of deduster.
Summary of the invention
At the problem in the above-mentioned background technology, the embodiment of the invention provides the production method of a kind of dust catcher with the PTFE coated filter material.
In order to realize aforementioned goal of the invention, the technological means that the present invention adopts is as follows:
(1) pricker felt processed
The PTFE raw material band through PTFE line and broken string that backguy makes, is made into the PTFE base cloth with described PTFE line; The broken string that produces is handled in described backguy to be stung on the described PTFE base cloth according to pre-needling and main acupuncture step;
(2) PTFE overlay film processed
Carry out degreasing in 180 ℃, carry out longitudinal stretching simultaneously, longitudinal stretching pulling force 4.5MPa, draw ratio are 3 times; In 150 ℃ of environment, carry out cross directional stretch, rate of extension 70-90mm/s then; Then in 190 ℃ of environment, carry out thermal finalization;
(3) spray emulsion
With tetrafluoroethene emulsion spray to described PTFE film surface, the consisting of of described tetrafluoroethene emulsion (percentage by weight):
Solid content is the ptfe emulsion 26%-32% of 50wt%,
Solid content is 50% silicone oil latex 8%-12%,
Ammonium persulfate 4%-7%,
Water 68%-70%;
(4) heat is compound
220 ℃ of heat roller temperatures, hot-rolling pressure is under the condition of 3.3kg/cm2, and it is compound that PTFE film and PTFE Nomex base material are carried out hot pressing, makes the PTFE coated filter material.
Description of drawings
The present invention is described in further detail with reference to the accompanying drawings below:
Fig. 1 is embodiment of the invention technological process of production schematic diagram.
The specific embodiment
Specifically describe below by the present invention of embodiment.
Be the technological process of production schematic diagram of a kind of PTFE coated filter material of the embodiment of the invention as Fig. 1.
(1) pricker felt processed
The PTFE raw material band through PTFE line and broken string that backguy makes, is made into the PTFE base cloth with described PTFE line; The broken string that produces is handled in described backguy to be stung on the described PTFE base cloth according to pre-needling and main acupuncture step;
(2) PTFE overlay film processed
Carry out degreasing in 180 ℃, carry out longitudinal stretching simultaneously, longitudinal stretching pulling force 4.5MPa, draw ratio are 3 times; In 150 ℃ of environment, carry out cross directional stretch, rate of extension 70-90mm/s then; Then in 190 ℃ of environment, carry out thermal finalization;
(3) spray emulsion
With tetrafluoroethene emulsion spray to described PTFE film surface, the consisting of of described tetrafluoroethene emulsion (percentage by weight):
Solid content is the ptfe emulsion 26%-32% of 50wt%,
Solid content is 50% silicone oil latex 8%-12%,
Ammonium persulfate 4%-7%,
Water 68%-70%;
(4) heat is compound
220 ℃ of heat roller temperatures, hot-rolling pressure is under the condition of 3.3kg/cm2, and it is compound that PTFE film and PTFE Nomex base material are carried out hot pressing, makes the PTFE coated filter material.
Claims (2)
1. the production method of a dust catcher coated filter material comprises:
(1) pricker felt processed
The PTFE raw material band through PTFE line and broken string that backguy makes, is made into the PTFE base cloth with described PTFE line; The broken string that produces is handled in described backguy to be stung on the described PTFE base cloth according to pre-needling and main acupuncture step;
(2) PTFE overlay film processed
Carry out degreasing in 180 ℃, carry out longitudinal stretching simultaneously, longitudinal stretching pulling force 4.5MPa, draw ratio are 3 times; In 150 ℃ of environment, carry out cross directional stretch, rate of extension 70-90mm/s then; Then in 190 ℃ of environment, carry out thermal finalization;
(3) spray emulsion
The tetrafluoroethene emulsion is sprayed to described PTFE film surface;
(4) heat is compound
220 ℃ of heat roller temperatures, hot-rolling pressure is under the condition of 3.3kg/cm2, and it is compound that PTFE film and PTFE Nomex base material are carried out hot pressing, makes the PTFE coated filter material.
2. the production method of described dust catcher coated filter material according to claim 1 is characterized in that:
The consisting of of described tetrafluoroethene emulsion (percentage by weight):
Solid content is the ptfe emulsion 26%-32% of 50wt%,
Solid content is 50% silicone oil latex 8%-12%,
Ammonium persulfate 4%-7%,
Water 68%-70%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210031648 CN103239938A (en) | 2012-02-13 | 2012-02-13 | Production method of dust collector tectorial membrane filter material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210031648 CN103239938A (en) | 2012-02-13 | 2012-02-13 | Production method of dust collector tectorial membrane filter material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103239938A true CN103239938A (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210031648 Pending CN103239938A (en) | 2012-02-13 | 2012-02-13 | Production method of dust collector tectorial membrane filter material |
Country Status (1)
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| CN (1) | CN103239938A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693517A (en) * | 2016-08-12 | 2017-05-24 | 浙江大学昆山创新中心 | Preparation method of flame-resistant membrane-laminating filtering material capable of being cured at room temperature and repeatedly utilized |
-
2012
- 2012-02-13 CN CN 201210031648 patent/CN103239938A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693517A (en) * | 2016-08-12 | 2017-05-24 | 浙江大学昆山创新中心 | Preparation method of flame-resistant membrane-laminating filtering material capable of being cured at room temperature and repeatedly utilized |
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| PB01 | Publication | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130814 |