CN209848489U - PTFE tectorial membrane acupuncture felt - Google Patents
PTFE tectorial membrane acupuncture felt Download PDFInfo
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- CN209848489U CN209848489U CN201920285645.2U CN201920285645U CN209848489U CN 209848489 U CN209848489 U CN 209848489U CN 201920285645 U CN201920285645 U CN 201920285645U CN 209848489 U CN209848489 U CN 209848489U
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Abstract
The utility model provides a PTFE tectorial membrane acupuncture felt, the acupuncture felt includes the base cloth layer, connects through the acupuncture of acupuncture machine PMMA fibrous layer about the base cloth layer it has one deck PTFE micropore rete to adhere to on the PMMA fibrous layer, PTFE micropore rete is through preventing static liquid soaking treatment. The utility model discloses use glass fiber as the base cloth, further improved the mechanical properties of this acupuncture felt, the PMMA fibrous layer in the acupuncture simultaneously makes it have good chemical stability and weatherability, prolongs the life and the use accuracy of acupuncture felt.
Description
Technical Field
The utility model relates to a needled felt technical field, concretely relates to PTFE tectorial membrane needled felt.
Background
With the rapid development of modern industrial processes of countries in the world, environmental problems are increasingly highlighted. In the production process of the industries such as chemical industry, electric power, steel, metallurgy, waste incineration and the like, a large amount of high-temperature smoke dust can be generated, and the environment is seriously polluted. Aiming at high-temperature smoke dust generated in industrial production, emission control measures are established in all countries in the world. In the comprehensive emission standard of atmospheric pollutants established in 1996 (GB 16297-3. In recent years, the requirement of China on the emission of atmospheric pollutants is getting stricter. Currently, the ministry of environmental protection in China requires that the emission concentration of waste gas and dust of each industrial and mining enterprise is less than 30mg/m3And in some places even as low as 10mg/m3. This places very stringent requirements on the filtration accuracy of the filter material.
In order to meet the requirement, for the bag type dust collector, a method of performing surface film coating treatment on a needled felt filter material is mostly adopted at present, a PTFE film is coated on the surface of the needled felt, and the filtering precision of the filter material is improved. After the needled felt filter material is coated with the membrane, the filtering efficiency and the filtering precision can be greatly improved. PTFE is a low surface energy substance, and can increase the hydrophobicity of the filter material when being coated on the surface of the filter material. In the high-humidity flue gas filtration, especially for the filtration working condition with large moisture content, the problem of bag pasting of the filter bag can be greatly reduced, and the running resistance and the filtration energy consumption are reduced. But the PTFE membrane is very thin (< 10 mu m), so the mechanical property is poor. If the film covering process is unreasonable, the film covering process is easy to damage, thereby affecting the filtering precision and the service life of the film.
Disclosure of Invention
The utility model aims at solving the problems of poor mechanical property, poor dust removal effect, short service life and low precision existing in the prior art and providing a PTFE tectorial membrane needled felt.
The technical scheme of the utility model is realized like this:
the technical scheme 1: the utility model provides a PTFE tectorial membrane acupuncture felt, the acupuncture felt includes the base cloth layer, is in through the acupuncture of acupuncture machine PMMA fibrous layer about the base cloth layer PMMA fibrous layer is stained with one deck PTFE micropore rete on the PMMA fibrous layer, PTFE micropore rete is through preventing static liquid immersion treatment.
The technical scheme 2 is as follows: on the basis of the technical scheme 1, the base cloth layer is further improved as follows, wherein the base cloth layer is formed by arranging glass fibers in a criss-cross mode.
Technical scheme 3: on the basis of the technical scheme 1, the base fabric layer and the PMMA fiber layer are further improved in the following way, and the base fabric layer and the PMMA fiber layer are connected in a mutually hooking and winding manner through needling.
The technical scheme 4 is as follows: on the basis of the technical scheme 1, the pore diameter of the PTFE microporous membrane is further improved to be between 0.1 and 0.5 nm.
The technical scheme 5 is as follows: on the basis of the technical scheme 1, the anti-static liquid is further improved as follows, and is prepared from the following raw materials: antistatic agent HDC-102, antistatic agent HDC-105 and antistatic agent HDC-106.
The technical scheme 6 is as follows: on the basis of the technical scheme 1, the PMMA fiber layer is further improved to have the thickness of 50-90 nm.
The technical scheme 7 is as follows: on the basis of the technical scheme 1 or 4, the PTFE microporous membrane layer is further improved to have a thickness of 100-120 nm.
The utility model has the advantages that:
the PTFE film-coated needled felt provided by the utility model not only can effectively filter dust and ash, but also has the antistatic effect, so that the dust and the ash are not easy to be attached to the surface layer or the inner layer of the filter bag, and the potential safety hazards such as explosion characteristic dust explosion and the like are avoided;
the utility model discloses use glass fiber as the base cloth, further improved the mechanical properties of this acupuncture felt, the PMMA fibrous layer in the acupuncture simultaneously makes it have good chemical stability and weatherability, prolongs the life and the use accuracy of acupuncture felt.
The present invention will be further explained with reference to the drawings and examples.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural view of the present invention;
wherein, 1, an antistatic liquid treatment layer; 2, PTFE microporous membrane layer; a PMMA fiber layer; 4. and a base fabric layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Reference is made to figure 1.
Example 1
The PTFE membrane-coated needled felt comprises a base cloth layer 4, PMMA fiber layers 3 connected to the upper portion and the lower portion of the base cloth layer 4 in a needled mode through a needling machine, and the thickness of the PMMA fiber layers 3 is 50 nm.
A PTFE microporous membrane layer 2 is adhered to the PMMA fiber layer 3, the pore diameter of the PTFE microporous membrane is 0.1nm, and the thickness of the PTFE microporous membrane layer 2 is 100 nm. And the PTFE microporous membrane layer 2 is subjected to anti-static liquid immersion treatment.
The antistatic liquid is prepared from the following raw materials: antistatic agent HDC-102, antistatic agent HDC-105 and antistatic agent HDC-106.
The base cloth layer 4 is formed by arranging glass fibers in a criss-cross mode to form a fiber mesh cloth. The base cloth 4 layer and the PMMA fiber layer 3 are needled to form hook-and-loop connection with each other.
Example 2
The PTFE membrane-coated needled felt comprises a base cloth layer 4, PMMA fiber layers 3 connected to the upper portion and the lower portion of the base cloth layer 4 in a needled mode through a needling machine, and the thickness of the PMMA fiber layers 3 is 90 nm.
A PTFE microporous membrane layer 2 is adhered to the PMMA fiber layer 3, the pore diameter of the PTFE microporous membrane is 0.5nm, and the thickness of the PTFE microporous membrane layer 2 is 120 nm. And the PTFE microporous membrane layer 2 is subjected to anti-static liquid immersion treatment.
The antistatic liquid is prepared from the following raw materials: antistatic agent HDC-102, antistatic agent HDC-105 and antistatic agent HDC-106.
The base cloth layer 4 is formed by arranging glass fibers in a criss-cross mode to form a fiber mesh cloth. The base cloth 4 layer and the PMMA fiber layer 3 are needled to form hook-and-loop connection with each other.
Example 3
The PTFE membrane-coated needled felt comprises a base cloth layer 4, PMMA fiber layers 3 connected to the upper portion and the lower portion of the base cloth layer 4 in a needled mode through a needling machine, and the thickness of the PMMA fiber layers 3 is 70 nm.
A PTFE microporous membrane layer 2 is adhered to the PMMA fiber layer 3, the pore diameter of the PTFE microporous membrane is 0.3nm, and the thickness of the PTFE microporous membrane layer 2 is 110 nm. And the PTFE microporous membrane layer 2 is subjected to anti-static liquid immersion treatment.
The antistatic liquid is prepared from the following raw materials: antistatic agent HDC-102, antistatic agent HDC-105 and antistatic agent HDC-106.
The base cloth layer 4 is formed by arranging glass fibers in a criss-cross mode to form a fiber mesh cloth. The base cloth 4 layer and the PMMA fiber layer 3 are needled to form hook-and-loop connection with each other.
The needled felt can resist the waste gas environment with the pH value of 3-10, and the use temperature can reach 220 ℃; the micro-dust capturing effect is good, the capturing rate of PM2.5 in industrial dust can reach 100%, and haze can be effectively prevented; warp strength is more than or equal to 2200N/5 x 20cm, weft strength is more than or equal to 2200N/5 x 20cm, warp elongation at break is less than or equal to 12%, weft elongation at break is less than or equal to 10%, and air permeability is 15-20m3/m2Min, the service life can reach 5 years.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a PTFE tectorial membrane acupuncture felt, its characterized in that, the acupuncture felt includes the base cloth layer, connects through the acupuncture of acupuncture machine PMMA fibrous layer about the base cloth layer PMMA fibrous layer is stained with one deck PTFE micropore rete on the PMMA fibrous layer, PTFE micropore rete is through preventing static liquid immersion treatment.
2. The needled felt with a coated PTFE film of claim 1, wherein said base layer is a fiber mesh formed by glass fibers arranged in a criss-cross manner.
3. The needled felt with a coated PTFE film of claim 1, wherein said base layer and said PMMA fiber layer are needled to form a hook-and-loop connection with each other.
4. The PTFE coated needled felt according to claim 1, characterized in that the pore diameter of the PTFE microporous membrane is between 0.1 and 0.5 nm.
5. The PTFE membrane needled felt according to claim 1, characterized in that the antistatic liquid is prepared from the following raw materials: antistatic agent HDC-102, antistatic agent HDC-105 and antistatic agent HDC-106.
6. The needled felt with a coated PTFE film of claim 1, wherein the thickness of the PMMA fiber layer is 50-90 nm.
7. The PTFE coated needled felt according to claim 1 or 4, wherein the thickness of the PTFE microporous membrane layer is 100-120 nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920285645.2U CN209848489U (en) | 2019-03-06 | 2019-03-06 | PTFE tectorial membrane acupuncture felt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920285645.2U CN209848489U (en) | 2019-03-06 | 2019-03-06 | PTFE tectorial membrane acupuncture felt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209848489U true CN209848489U (en) | 2019-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920285645.2U Active CN209848489U (en) | 2019-03-06 | 2019-03-06 | PTFE tectorial membrane acupuncture felt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209848489U (en) |
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2019
- 2019-03-06 CN CN201920285645.2U patent/CN209848489U/en active Active
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