CN210257538U

CN210257538U - PTFE (polytetrafluoroethylene) needled felt

Info

Publication number: CN210257538U
Application number: CN201921145565.3U
Authority: CN
Inventors: 吴委强; 张涛
Original assignee: Zhejiang Haokai Filter Co Ltd
Current assignee: Zhejiang Haokai Filter Co Ltd
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-04-07
Anticipated expiration: 2029-07-19

Abstract

The utility model discloses a PTFE acupuncture felt aims at providing the antistatic PTFE acupuncture felt that the gas permeability is good, and its technical scheme main points are including base cloth layer and PTFE fibre acupuncture layer, and PTFE fibre acupuncture layer is two-layer both sides that are located the base cloth layer respectively, PTFE fibre acupuncture layer has inlayed first antistatic fiber silk in the one side that deviates from the base cloth layer, and first antistatic fiber silk includes along warp direction antistatic fiber silk and along latitudinal direction antistatic fiber silk of latitudinal direction parallel arrangement of warp direction parallel arrangement, is equipped with a plurality of first knitting strips that set up along the warp direction and a plurality of second knitting strips that set up along the latitudinal direction on the two sides of base cloth layer respectively, forms first ventilative groove between the adjacent first knitting strips, forms second ventilative groove between the adjacent second knitting strips, still is equipped with the antistatic fiber silk that is used for sutural second on the base cloth layer, and the antistatic fiber silk runs through first knitting strips respectively, Knitting strip of second, base cloth layer and PTFE fibre acupuncture layer, the utility model is suitable for a acupuncture felt technical field.

Description

PTFE (polytetrafluoroethylene) needled felt

Technical Field

The utility model relates to a needled felt field, more specifically say that it relates to a PTFE needled felt.

Background

The PTFE needled felt is mainly composed of PTFE fibers in a macromolecular linear structure, so that the PTFE needled felt has extremely strong temperature resistance, wear resistance, corrosion resistance and chemical stability resistance, and is widely applicable to various severe flue gas filtering environments such as steel, electric power, waste incineration and the like.

In the use process of the existing PTFE needled felt without antistatic property, the powder cake attached to the surface is easy to form voltage, which causes discharge phenomenon, if the surface is not treated by antistatic measure, explosion can be caused.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an antistatic PTFE acupuncture felt that gas permeability is good.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a PTFE acupuncture felt, includes base cloth layer and PTFE fibre acupuncture layer, PTFE fibre acupuncture layer is two-layer both sides that are located the base cloth layer respectively, its characterized in that: it has first antistatic fiber silk to inlay on the one side that PTFE fibre acupuncture layer deviates from the base cloth layer, first antistatic fiber silk includes along warp direction antistatic fiber silk of warp direction parallel arrangement and along weft direction antistatic fiber silk of weft direction parallel arrangement, be equipped with a plurality of first knitting strips that set up along the warp direction and a plurality of second knitting strips that set up along the weft direction on the two sides of base cloth layer respectively, form first ventilative groove between the adjacent first knitting strip, form the ventilative groove of second between the adjacent second knitting strip, still be equipped with on the base cloth layer and be used for sutural second to resist electrostatic fiber silk, the second is resisted electrostatic fiber silk and is run through first knitting strip respectively, the knitting strip of second, base cloth layer and PTFE fibre acupuncture layer.

By adopting the technical scheme, the PTFE fiber needled layer is made of PTFE fibers through a needling machine and has good air permeability and filterability, the first antistatic fiber yarns are embedded on the outer surface of the PTFE fiber needled layer, namely the windward side, and the first antistatic fiber yarns are conductive fiber yarns, so that the surface conductivity of the PTFE needled felt is consistent through the arrangement modes of the warp direction and the weft direction, and adsorbed dust is uniformly distributed on the surface of the PTFE fiber needled felt and is easy to peel off and clean; the first knitting strip can increase the tensile strength in the warp direction, and the second knitting strip can increase the tensile strength in the weft direction, so that the structural strength of the PTFE needled felt is integrally improved; due to the arrangement of the first knitted strips and the second knitted strips, first ventilation grooves and second ventilation grooves can be formed between the PTFE fiber needled layer and the base cloth layer, and the overall ventilation performance is improved; the dacron filament can be chooseed for use to anti static cellosilk of second, both be used for connecting to sew up, also can further improve antistatic action, the second is anti static cellosilk and is rectangle wavy structure after sewing up, anti static cellosilk of second runs through PTFE fibre acupuncture layer from top to bottom in proper order promptly, first knitting strip, the base cloth layer, knitting strip of second and PTFE fibre acupuncture layer down, by running through PTFE fibre acupuncture layer down in proper order down from supreme down again, knitting strip of second, the base cloth layer, first knitting strip and last PTFE fibre acupuncture layer, circulate in proper order, ensure joint strength.

The utility model discloses further set up to: the first knitted strip and the second knitted strip are both of net structures knitted by polyester fibers.

By adopting the technical scheme, the fabric is formed by weaving the polyester fibers, has good tensile strength, and is of a net structure, so that the air permeability can be further ensured.

The utility model discloses further set up to: and the warp-wise antistatic fiber yarns and the weft-wise antistatic fiber yarns are respectively arranged at equal intervals.

Through adopting above-mentioned technical scheme, the first antistatic fiber silk in PTFE acupuncture felt surface distributes evenly, and adsorbed dust distributes evenly on its surface, easily peels off the deashing.

Drawings

FIG. 1 is a schematic cross-sectional view of a PTFE needled felt according to an embodiment of the present invention;

FIG. 2 is a schematic surface structure diagram of a PTFE fiber needled layer according to an embodiment of the present invention;

description of reference numerals: 1. a base cloth layer; 2. a PTFE fiber needled layer; 3. a first antistatic fiber; 4. warp-wise antistatic fiber yarns; 5. weft-wise antistatic fiber yarns; 6. a first knit bar; 7. a second knit strip; 8. a first gas-permeable groove; 9. and the second antistatic fiber yarn.

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.

The utility model provides a PTFE acupuncture felt, includes base cloth layer 1 and PTFE fibre acupuncture layer 2, PTFE fibre acupuncture layer 2 is two-layer both sides that are located base cloth layer 1 respectively, its characterized in that: PTFE fibre acupuncture layer 2 deviates from having inlayed first antistatic fiber silk 3 in the one side of base cloth layer 1, first antistatic fiber silk 3 includes along warp direction antistatic fiber silk 4 of warp direction parallel arrangement and along latitudinal direction antistatic fiber silk 5 of latitudinal direction parallel arrangement, be equipped with a plurality of first knitting strip 6 that set up along the warp direction and a plurality of second knitting strip 7 that set up along the latitudinal direction on the two sides of base cloth layer 1 respectively, form first ventilative groove 8 between the adjacent first knitting strip 6, form the ventilative groove of second between the adjacent second knitting strip 7, still be equipped with on the base cloth layer 1 and be used for sutural second to resist electrostatic fiber silk 9, the second is resisted electrostatic fiber silk 9 and is run through first knitting strip 6 respectively, second knitting strip 7, base cloth layer 1 and PTFE fibre acupuncture layer 2.

By adopting the technical scheme, the PTFE fiber needled layer 2 is made of PTFE fibers through a needling machine and has good air permeability and filterability, the first antistatic fiber yarns 3 are embedded on the outer surface, namely the windward side, of the PTFE fiber needled layer 2, the first antistatic fiber yarns 3 are conductive fiber yarns, and through the arrangement modes of the warp direction and the weft direction, the electric conductivity of the surface of the PTFE needled felt is consistent, adsorbed dust is uniformly distributed on the surface of the PTFE fiber needled felt, and the PTFE fiber needled layer is easy to peel off and clean; the first knitting strip 6 can increase the tensile strength in the warp direction, and the second knitting strip 7 can increase the tensile strength in the weft direction, so that the structural strength of the PTFE needled felt is improved on the whole; due to the arrangement of the first knitting strips 6 and the second knitting strips 7, first ventilation grooves 8 and second ventilation grooves are formed between the PTFE fiber needled layer 2 and the base cloth layer 1, so that the overall ventilation performance is improved; the anti static cellosilk 9 of second can select for use the dacron filament, both be used for connecting to sew up, also can further improve antistatic action, the anti static cellosilk 9 of second is rectangle wavy structure after sewing up, anti static cellosilk 9 of second from top to bottom runs through PTFE fibre acupuncture layer 2 in proper order promptly, first knitting strip 6, base cloth layer 1, knitting strip 7 of second and PTFE fibre acupuncture layer 2 down, by running through PTFE fibre acupuncture layer 2 down in proper order down from lower supreme again, knitting strip 7 of second, base cloth layer 1, knitting strip 6 of first and last PTFE fibre acupuncture layer 2, circulate in proper order, ensure joint strength.

The utility model discloses further set up to: the first knitting strip 6 and the second knitting strip 7 are both net-shaped structures knitted by polyester fibers.

The utility model discloses further set up to: the warp-wise antistatic fiber yarns 4 and the weft-wise antistatic fiber yarns 5 are respectively arranged at equal intervals.

By adopting the technical scheme, the first antistatic fiber yarns 3 on the surface of the PTFE needled felt are uniformly distributed, and adsorbed dust is uniformly distributed on the surface of the PTFE needled felt and is easy to peel off for ash removal.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a PTFE acupuncture felt, includes base cloth layer (1) and PTFE fibre acupuncture layer (2), PTFE fibre acupuncture layer (2) are two-layer both sides that are located base cloth layer (1) respectively, its characterized in that: one side of the PTFE fiber needled layer (2) departing from the base cloth layer (1) is embedded with a first antistatic fiber (3), the first antistatic fiber (3) comprises warp antistatic fiber (4) arranged along the warp direction in parallel and weft antistatic fiber (5) arranged along the weft direction in parallel, two sides of the base cloth layer (1) are respectively provided with a plurality of first knitting strips (6) arranged along the warp direction and a plurality of second knitting strips (7) arranged along the weft direction, a first ventilation groove (8) is formed between every two adjacent first knitting strips (6), a second ventilation groove is formed between every two adjacent second knitting strips (7), and a second antistatic fiber (9) used for sewing is further arranged on the base cloth layer (1), the second anti-static fiber filaments (9) penetrate through the first knitted strips (6), the second knitted strips (7), the base cloth layer (1) and the PTFE fiber needled layer (2) respectively.

2. The PTFE needled felt according to claim 1, wherein: the first knitting strip (6) and the second knitting strip (7) are both net-shaped structures knitted by polyester fibers.

3. The PTFE needled felt according to claim 1, wherein: warp antistatic fiber silk (4) and latitudinal direction antistatic fiber silk (5) are equidistance arrangement respectively.