CN215962551U

CN215962551U - Aramid fiber antistatic high-temperature-resistant needled filter felt

Info

Publication number: CN215962551U
Application number: CN202122396990.3U
Authority: CN
Inventors: 吴峥
Original assignee: Nantong Bolian Material Technology Co ltd
Current assignee: Nantong Bolian Material Technology Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-03-08
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses an aramid fiber anti-static high-temperature-resistant needled filter felt, relates to the technical field of needled filter felts, and aims to solve the problems of low functionality and poor using effect of the conventional needled filter felt. The needled filter felt comprises a glass fiber middle base layer, a first aramid fiber layer and a second aramid fiber layer, wherein the glass fiber middle base layer is located between the first aramid fiber layer and the second aramid fiber layer, the first aramid fiber layer and the second aramid fiber layer all comprise a plurality of aramid fiber yarns, the aramid fiber yarns comprise unit aramid fiber yarns and first conductive fiber yarns, the glass fiber middle base layer comprises a plurality of first glass fiber yarns and a plurality of second glass fiber yarns, the first glass fiber yarns and the second glass fiber yarns all comprise unit glass fiber yarns and second conductive fiber yarns, and a first mixed fiber layer is arranged between the glass fiber middle base layer and the first aramid fiber layer.

Description

Aramid fiber antistatic high-temperature-resistant needled filter felt

Technical Field

The utility model relates to the technical field of needled filter felts, in particular to an aramid fiber antistatic high-temperature resistant needled filter felt.

Background

The needled filter felt is prepared by adopting a non-woven needling process and through heat setting and other treatment methods, is used for industrial dust catching and smoke dust treatment, achieves the aim of filtering, and has good heat resistance, flame retardancy and infusibility besides spinnability and wear resistance of polyester fibers, so that the needled filter felt of the aramid fibers is widely applied.

However, the existing needled filter felt is low in functionality and poor in using effect, so that the existing requirements are not met, and the aramid fiber antistatic high-temperature resistant needled filter felt is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an aramid fiber anti-static high-temperature-resistant needled filter felt, and aims to solve the problems of low functionality and poor using effect of the conventional needled filter felt in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an aramid fiber prevents static high temperature resistant acupuncture filter felt, includes acupuncture filter felt main part, acupuncture filter felt main part includes glass fiber middle base layer, first aramid fiber layer and second aramid fiber layer, glass fiber middle base layer is located between first aramid fiber layer and the second aramid fiber layer, first aramid fiber layer and second aramid fiber layer all include a plurality of aramid fiber yarns, aramid fiber yarn includes unit aramid fiber silk and first conductive fiber yarn, glass fiber middle base layer includes a plurality of first glass fiber silk and a plurality of second glass fiber silk, first glass fiber silk and second glass fiber silk all include unit glass fiber silk and second conductive fiber yarn.

Preferably, be provided with first mixed fiber layer between basic unit and the first aramid fiber layer in the middle of the glass fiber, be provided with second mixed fiber layer between basic unit and the second aramid fiber layer in the middle of the glass fiber.

Preferably, the first mixed fiber layer comprises a plurality of first irregular micro-porous structures, and the second mixed fiber layer comprises a plurality of second irregular micro-porous structures.

Preferably, a first polytetrafluoroethylene film is arranged on the outer side of the first aramid fiber layer, and a second polytetrafluoroethylene film is arranged on the outer side of the second aramid fiber layer.

Preferably, the first glass fiber yarn and the second glass fiber yarn are perpendicular to each other, and the first glass fiber yarn and the second glass fiber yarn are fixed in a weaving mode.

Preferably, the first conductive fiber yarn is located among the plurality of unit aramid fiber yarns, and the second conductive fiber yarn is located among the plurality of unit glass fiber yarns.

Compared with the prior art, the utility model has the beneficial effects that:

1. the aramid fiber yarn comprises the first conductive fiber yarn, and the first glass fiber yarn and the second glass fiber yarn comprise the second conductive fiber yarn, so that the middle base layer and the aramid fiber layer of the glass fiber have good antistatic performance, potential safety hazards caused by electrostatic discharge are eliminated, and the use safety is improved;

2. the mixed fiber layer is internally provided with a plurality of irregular micropore structures, so that the insulation, high temperature resistance and flame retardance of the needled filter felt main body are improved, meanwhile, the gas filtering resistance is small, the filtering wind speed is high, and the filtering efficiency and the filtering quality are improved;

3. according to the utility model, the polytetrafluoroethylene film is coated on the outer side of the needled filter felt body, so that the surface of the needled filter felt body is smooth, hydrophobic, breathable and easy to clean.

Drawings

FIG. 1 is a schematic structural view of a needled filter felt body of the present invention;

fig. 2 is a schematic structural view of an aramid fiber yarn of the present invention;

FIG. 3 is an enlarged view of a portion of region A of the present invention;

FIG. 4 is a schematic structural view of a fiberglass intermediate substrate of the present invention;

fig. 5 is a schematic view of the structure of a first fiberglass yarn and a second fiberglass yarn of the present invention.

In the figure: 1. needling a filter felt body; 2. a fiberglass intermediate base layer; 3. a first aramid fiber layer; 4. a second aramid fiber layer; 5. unit aramid fiber yarn; 6. a first conductive fiber yarn; 7. a first fiberglass yarn; 8. a second fiberglass yarn; 9. a unit glass fiber yarn; 10. a second conductive fiber yarn; 11. a first mixed fiber layer; 12. a second mixed fiber layer; 13. a first irregular microporous structure; 14. a second irregular microporous structure; 15. a first polytetrafluoroethylene film; 16. a second polytetrafluoroethylene film; 17. aramid fiber yarn.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, an embodiment of the present invention is shown: an aramid fiber anti-static high-temperature-resistant needled filter felt comprises a needled filter felt main body 1, wherein the needled filter felt main body 1 comprises a glass fiber middle base layer 2, a first aramid fiber layer 3 and a second aramid fiber layer 4, the glass fiber middle base layer 2 is positioned between the first aramid fiber layer 3 and the second aramid fiber layer 4, the first aramid fiber layer 3 and the second aramid fiber layer 4 both comprise a plurality of aramid fiber yarns 17, the aramid fiber has excellent performances such as ultrahigh strength, high modulus, high temperature resistance, acid and alkali resistance, light weight and the like, the manufactured first aramid fiber layer 3 and the second aramid fiber layer 4 have excellent performances at the same time, the high-temperature-resistant, acid and alkali-resistant characteristics of the needled filter felt main body 1 are improved, the aramid fiber yarns 17 comprise unit aramid fiber yarns 5 and first conductive fiber yarns 6, the glass fiber middle base layer 2 comprises a plurality of first glass fiber yarns 7 and a plurality of second glass fiber yarns 8, first glass fiber silk 7 and second glass fiber silk 8 all include unit glass fiber silk 9 and second conductive fiber yarn 10, and first conductive fiber yarn 6 and second conductive fiber yarn 10 make basic unit 2, first aramid fiber layer 3 and second aramid fiber layer 4 all possess good antistatic properties in the middle of the glass fiber, have eliminated the potential safety hazard that brings because of electrostatic discharge, have improved the safety in utilization.

Further, be provided with first mixed fiber layer 11 between basic unit 2 and the first aramid fiber layer 3 in the middle of the glass fiber, be provided with second mixed fiber layer 12 between basic unit 2 and the second aramid fiber layer 4 in the middle of the glass fiber, improved filtration efficiency and filtration quality.

Further, the first mixed fiber layer 11 comprises a plurality of first irregular microporous structures 13, the second mixed fiber layer 12 comprises a plurality of second irregular microporous structures 14, the plurality of irregular microporous structures improve the insulation, high temperature resistance and flame retardance of the needled filter felt main body 1, meanwhile, the gas filtering resistance is small, the filtering wind speed is high, and the filtering efficiency and the filtering quality are improved.

Further, a first polytetrafluoroethylene film 15 is arranged on the outer side of the first aramid fiber layer 3, a second polytetrafluoroethylene film 16 is arranged on the outer side of the second aramid fiber layer 4, and the polytetrafluoroethylene film on the surface of the needled filter felt body 1 enables the surface of the needled filter felt body 1 to be smooth, hydrophobic, air-permeable and easy to clean.

Further, first glass fiber 7 and second glass fiber 8 mutually perpendicular, first glass fiber 7 and second glass fiber 8 weave fixedly, are provided with a plurality of filtration holes between first glass fiber 7 and the second glass fiber 8.

Further, first conductive fiber yarn 6 is located between a plurality of unit aramid fiber silk 5, and second conductive fiber yarn 10 is located between a plurality of unit glass fiber silk 9 for basic unit 2, first aramid fiber layer 3 and second aramid fiber layer 4 all possess good antistatic performance in the middle of the glass fiber.

The working principle is as follows: when in use, the polytetrafluoroethylene film on the surface of the needled filter felt main body 1 ensures that the surface of the needled filter felt main body 1 is smooth, hydrophobic, air-permeable and easy to clean, the first mixed fiber layer 11 and the second mixed fiber layer 12 are both internally provided with a plurality of irregular micropore structures, the insulation, high temperature resistance and flame retardance of the needled filter felt main body 1 are improved, meanwhile, the gas filtration resistance is small, the filtration wind speed is large, the filtration efficiency and the filtration quality are improved, the aramid fiber has excellent performances such as ultrahigh strength, high modulus, high temperature resistance, acid and alkali resistance, light weight and the like, the manufactured first aramid fiber layer 3 and the second aramid fiber layer 4 have excellent performances at the same time, the high temperature resistance, acid and alkali resistance of the needled filter felt main body 1 are improved, the aramid fiber yarn 17 comprises a first conductive fiber yarn 6, the first glass fiber 7 and the second glass fiber 8 comprise a second conductive fiber yarn 10, make middle basic unit 2 of glass fiber, first aramid fiber layer 3 and second aramid fiber layer 4 all possess good antistatic properties, eliminated the potential safety hazard that brings because of electrostatic discharge, improved the safety in utilization.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an aramid fiber prevents static high temperature resistant acupuncture filter felt, includes acupuncture filter felt main part (1), its characterized in that: acupuncture filter felt main part (1) includes basic unit (2), first aramid fiber layer (3) and second aramid fiber layer (4) in the middle of the glass fiber, basic unit (2) is located between first aramid fiber layer (3) and second aramid fiber layer (4) in the middle of the glass fiber, first aramid fiber layer (3) and second aramid fiber layer (4) all include a plurality of aramid fiber yarn (17), aramid fiber yarn (17) are including unit aramid fiber silk (5) and first conductive fiber yarn (6), basic unit (2) includes a plurality of first glass fiber silk (7) and a plurality of second glass fiber silk (8) in the middle of the glass fiber, first glass fiber silk (7) and second glass fiber silk (8) all include unit glass fiber silk (9) and second conductive fiber yarn (10).

2. The aramid fiber antistatic high-temperature resistant needled filter felt according to claim 1, characterized in that: be provided with first mixed fiber layer (11) between basic unit (2) and first aramid fiber layer (3) in the middle of the glass fiber, be provided with second mixed fiber layer (12) between basic unit (2) and second aramid fiber layer (4) in the middle of the glass fiber.

3. The aramid fiber antistatic high-temperature resistant needled filter felt according to claim 2, characterized in that: the first mixed fiber layer (11) comprises a plurality of first irregular micro-porous structures (13), and the second mixed fiber layer (12) comprises a plurality of second irregular micro-porous structures (14).

4. The aramid fiber antistatic high-temperature resistant needled filter felt according to claim 1, characterized in that: the outer side of the first aramid fiber layer (3) is provided with a first polytetrafluoroethylene film (15), and the outer side of the second aramid fiber layer (4) is provided with a second polytetrafluoroethylene film (16).

5. The aramid fiber antistatic high-temperature resistant needled filter felt according to claim 1, characterized in that: the first glass fiber yarns (7) and the second glass fiber yarns (8) are perpendicular to each other, and the first glass fiber yarns (7) and the second glass fiber yarns (8) are fixed in a weaving mode.

6. The aramid fiber antistatic high-temperature resistant needled filter felt according to claim 1, characterized in that: the first conductive fiber yarn (6) is located between the plurality of unit aramid fiber yarns (5), and the second conductive fiber yarn (10) is located between the plurality of unit glass fiber yarns (9).