CN219405665U

CN219405665U - Glass fiber composite felt

Info

Publication number: CN219405665U
Application number: CN202223557855.3U
Authority: CN
Inventors: 刘汉勇
Original assignee: Zhejiang Hongming Glass Fiber Products Co ltd
Current assignee: Zhejiang Hongming Glass Fiber Products Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-07-25
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses a glass fiber composite felt, which comprises a glass fiber woven fabric layer, a PPS fiber layer, a stainless steel fiber layer and an ultrafine basalt fiber layer which are compounded by needling; the glass fiber woven fabric layer comprises a surface layer and an inner layer, wherein the surface layer is formed by interweaving surface warp yarns and surface weft yarns, the inner layer is formed by interweaving inner warp yarns and inner weft yarns, the surface warp yarns are glass fiber filaments, and the surface weft yarns are aluminum-magnesium glass fiber yarns; the inner warp yarns and the inner weft yarns are alkali-free bulked glass fiber yarns; the PPS fiber layer is positioned on one side of the inner layer of the glass fiber woven cloth layer. The glass fiber woven cloth layer provides a good strong foundation for the composite felt. And the stainless steel fiber layer can avoid the generation of static phenomenon of the superfine basalt fiber in the processing processes of needling and the like, so that the production process can be smoothly carried out.

Description

Glass fiber composite felt

Technical Field

The utility model relates to the technical field of filter composite felts, in particular to a glass fiber composite felt.

Background

The flue gas and dust in the industries of waste incineration, noble metal smelting, rare metal deep processing, chemical industry, thermoelectricity and the like are high in temperature, and most of the flue gas and dust contains a large amount of harmful substances such as hydrogen chloride, sulfides, oxynitride, cyanide, polycyclic hydrocarbon and the like, and become a significant air pollution source once the flue gas and dust is discharged into the atmosphere. At present, for flue gas dust filtration of such tail gas, a filter material made of alkali-free glass fiber, polyimide (P84), polytetrafluoroethylene (PTFE) and other fibers is mainly adopted. The basalt fiber is an inorganic novel high-technology fiber, takes pure natural basalt as a raw material, is melted at 1450-1500 ℃, is a continuous fiber formed by drawing a wire drawing bushing, has excellent comprehensive performance, is acid-resistant and alkali-resistant, is low-temperature-resistant and high-temperature-resistant, has high tensile strength, has higher compression strength, shear strength and ageing resistance, is an excellent filtering material for gas-solid separation or liquid-solid separation, and particularly has more advantages in the aspect of high-temperature flue gas filtration, but has higher volume specific resistance, and is easy to generate static electricity in processing.

How to prepare a composite felt with good filtering performance and antistatic property by using glass fibers and basalt stone fibers is a problem to be solved.

Disclosure of Invention

The utility model aims to provide a glass fiber composite felt, which adopts a stainless steel fiber layer with good conductivity, and can avoid the generation of static phenomenon of superfine basalt fibers in the processing processes of needling and the like.

In order to solve the technical problems, the aim of the utility model is realized as follows:

the utility model relates to a glass fiber composite felt, which comprises a glass fiber woven fabric layer, a PPS fiber layer, a stainless steel fiber layer and an ultrafine basalt fiber layer which are compounded by needling;

the glass fiber woven fabric layer comprises a surface layer and an inner layer, wherein the surface layer is formed by interweaving surface warp yarns and surface weft yarns, the inner layer is formed by interweaving inner warp yarns and inner weft yarns, the surface warp yarns are glass fiber filaments, and the surface weft yarns are aluminum-magnesium glass fiber yarns; the inner warp yarns and the inner weft yarns are alkali-free bulked glass fiber yarns;

the PPS fiber layer is positioned on one side of the inner layer of the glass fiber woven cloth layer.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: a protective layer is compounded on one side of the surface layer of the glass fiber woven cloth layer

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the protective layer comprises an aramid short fiber layer and a polyimide fiber layer which are compounded through needling; the aramid short fiber layer is close to the surface layer of the glass fiber woven cloth layer.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: the surface layer warp yarns and the surface layer weft yarns are interwoven according to plain weave, the inner layer warp yarns and the inner layer weft yarns are woven according to plain weave, and the surface layer and the inner layer are connected by binding weft yarns.

The above-mentioned scheme is based on and is a preferable scheme of the above-mentioned scheme: and one side of the superfine basalt fiber layer, which is far away from the stainless steel fiber layer, is coated with a PTFE resin coating.

The beneficial effects of the utility model are as follows: the glass fiber composite felt provided by the utility model adopts the glass fiber woven cloth layer to provide a good strong foundation for the composite felt. And the stainless steel fiber layer can avoid the generation of static phenomenon of the superfine basalt fiber in the processing processes of needling and the like, so that the production process can be smoothly carried out.

Drawings

FIG. 1 is a schematic view of a structure of a glass fiber composite mat according to an embodiment I;

FIG. 2 is a weave diagram of a glass fiber woven fabric layer according to the first embodiment;

FIG. 3 is a schematic structural view of a glass fiber composite mat according to a second embodiment;

fig. 4 is a schematic structural view of a glass fiber composite mat according to a third embodiment.

The labels in the figures are illustrated below: 1-a glass fiber woven cloth layer; a 2-PPS fiber layer; 2-stainless steel fiber layer; 4-superfine basalt fiber layer; 101-surface layer first warp yarns; 102-surface layer second warp yarn; 111-inner layer first warp yarns; 112-an inner layer second warp yarn; 201-surface layer first weft yarn; 202-a top layer second weft yarn; 211-an inner layer first weft yarn; 212-an inner layer second weft yarn; 221-first binder weft yarn; 222-second binder weft yarn.

In fig. 2, ■ is a superficial organized point; gamma represents the inner tissue points; the weft yarns in the inner layer are all lifted up by the surface warp yarns; and (c) represents the interweaving point of the binding weft yarn and the surface warp yarn, and (d) represents the interweaving point of the binding weft yarn and the inner warp yarn.

Detailed Description

The utility model will be further described with reference to the drawings and specific examples.

Example 1

The present embodiment will be described in detail with reference to fig. 1 and 2. The glass fiber composite felt according to the embodiment comprises a glass fiber woven fabric layer 1, a PPS fiber layer 2, a stainless steel fiber layer 3 and an ultrafine basalt fiber layer 4 which are compounded by needling. Specifically, the materials are arranged in the above order and then subjected to needling compounding.

The glass fiber woven cloth layer 1 is formed by interweaving surface layer warp yarns and surface layer weft yarns, wherein the surface layer is formed by interweaving surface layer warp yarns and surface layer weft yarns, the inner layer is formed by interweaving inner layer warp yarns and inner layer weft yarns, the surface layer warp yarns are glass fiber filaments, and the surface layer weft yarns are aluminum-magnesium glass fiber yarns; the inner warp yarns and the inner weft yarns are alkali-free bulked glass fiber yarns. The PPS fiber layer 2 is positioned on the inner layer 12 side of the glass fiber woven fabric layer 1. Since the inner layer 12 is adjacent to the PPS fiber layer 2.

Because the superfine basalt fiber layer 4 is made of thinner basalt fibers, and static electricity is easily generated in the processing process of the basalt fibers due to larger volume specific resistance, the stainless steel fiber layer 3 is arranged in the embodiment, so that the needling production process is easy to carry out, and the stainless steel fibers can provide good strength for the needled felt and antistatic capability for the needled composite felt.

Further, in this embodiment, the surface warp yarns and the surface weft yarns are interwoven in a plain weave, the inner warp yarns and the inner weft yarns are woven in a plain weave, and the surface and inner weft yarns are connected by binder weft yarns.

In the glass fiber woven cloth layer 1, the surface layer warp yarns comprise surface layer first warp yarns and surface layer second warp yarns; the surface weft yarns comprise surface first weft yarns and surface second weft yarns; the inner layer warp yarns comprise inner layer first warp yarns and inner layer second warp yarns; the inner layer weft yarns comprise inner layer first weft yarns and inner layer second weft yarns. The binder weft yarns include a first binder weft yarn and a second binder weft yarn. The surface warp yarns are all lifted up as the inner weft yarns are introduced.

Example two

Referring to fig. 3, a detailed description will be given of this embodiment, and a glass fiber composite mat according to this embodiment is different from the first embodiment in that: the surface layer 11 side of the glass fiber woven cloth layer 1 is compounded with a protective layer 5. Further, the protective layer 5 comprises an aramid short fiber layer 51 and a polyimide fiber layer 52 which are compounded by needling; the aramid staple fiber layer 51 is adjacent to the surface layer 11 of the glass fiber woven cloth layer 1.

Example III

This embodiment will be described in detail with reference to fig. 4. The difference between the glass fiber composite felt according to the embodiment and the second embodiment is that: the side of the superfine basalt fiber layer 4 far away from the stainless steel fiber layer 3 is coated with a PTFE resin coating 6.

The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims

1. The glass fiber composite felt is characterized by comprising a glass fiber woven cloth layer (1), a PPS fiber layer (2), a stainless steel fiber layer (3) and an ultrafine basalt fiber layer (4) which are compounded by needling;

the glass fiber woven fabric layer (1) is formed by interweaving surface layer warp yarns and surface layer weft yarns, wherein the surface layer comprises a surface layer (11) and a surface layer (12), the surface layer comprises a surface layer warp yarn and a surface layer weft yarn, the surface layer comprises a surface layer weft yarn and a surface layer weft yarn, the surface layer warp yarn is a glass fiber filament, and the surface layer weft yarn is an aluminum-magnesium glass fiber yarn; the inner warp yarns and the inner weft yarns are alkali-free bulked glass fiber yarns;

the PPS fiber layer (2) is positioned on one side of the inner layer (12) of the glass fiber woven cloth layer (1).

2. The glass fiber composite felt according to claim 1, wherein a protective layer (5) is compounded on one side of a surface layer (11) of the glass fiber woven cloth layer (1).

3. A glass fiber composite mat according to claim 2, wherein the protective layer (5) comprises a needle-punched composite of an aramid staple fiber layer (51) and a polyimide fiber layer (52); the aramid short fiber layer (51) is close to the surface layer (11) of the glass fiber woven cloth layer (1).

4. The glass fiber composite mat of claim 1, wherein the surface warp yarns and the surface weft yarns are interwoven in a plain weave, the inner warp yarns and the inner weft yarns are woven in a plain weave, and the surface and inner layers are connected by binder weft yarns.

5. A glass fiber composite mat according to claim 1, wherein the side of the ultra fine basalt fiber layer (4) remote from the stainless steel fiber layer (3) is coated with a PTFE resin coating (6).