CN217258892U

CN217258892U - P glass fiber composite felt for concrete mixing plant

Info

Publication number: CN217258892U
Application number: CN202220500928.6U
Authority: CN
Inventors: 张菲菲; 陈朝虎; 王爱飞
Original assignee: Zhejiang Dongda Filter Material Technology Co ltd
Current assignee: Zhejiang Dongda Filter Material Technology Co ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-08-23
Anticipated expiration: 2032-03-09

Abstract

The utility model discloses a P glass fiber composite felt for a concrete mixing plant, which comprises a base cloth layer and a needling layer; by utilizing the advantages of strong dust blocking capability, excellent corrosion resistance and wear resistance, high toughness of the polyimide P84 fiber, high temperature resistance, good dimensional stability, high breaking strength and the like of the superfine glass fiber, the prepared product has excellent corrosion resistance and strong wear resistance and can be well applied to concrete stirring work; the base cloth layer and the needled layer are bonded through a hot melt adhesive, and the polyimide P84 fiber and the superfine glass fiber are bonded through the hot melt adhesive, so that the number of movable layers of the base cloth layer and the needled layer is reduced, and the firmness of the filter felt is increased preliminarily; the composite fiber rope is arranged in the base cloth layer and is sewn and fixed with the inner part of the needling layer, so that the base cloth layer and the needling layer are more closely attached, and the firmness between the base cloth layer and the needling layer is improved.

Description

P glass fiber composite felt for concrete mixing plant

Technical Field

The utility model relates to a compound felt technical field specifically is a fine compound felt of P glass for concrete mixing plant.

Background

The composite felt is made by adopting a non-woven needling process and through heat setting and other treatment methods, is widely applied to the aspects of industrial dust catching, smoke dust treatment and the like and has outstanding effect.

However, the existing composite felt for concrete mixing has great disadvantages, and after the existing composite felt for concrete mixing is used for a long time, the dust barrier force and the corrosion resistance are poor; the existing composite felt for concrete stirring has low filtering efficiency and poor ash removal efficiency; the current filter felt is needled, so that the enterprise cost is increased.

Therefore, the technical personnel in the field provide a P glass fiber composite felt for a concrete mixing plant to solve the problems in the background technology.

Disclosure of Invention

An object of the utility model is to provide a fine compound felt of P glass for concrete mixing plant to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a P glass fiber composite felt for a concrete mixing plant comprises a base cloth layer and a needling layer; the lower part of the base cloth layer is provided with a needling layer, the needling layer is composed of polyimide P84 fiber and superfine glass fiber, and a plurality of composite fiber ropes with equal spacing are knitted inside the base cloth layer and the needling layer.

As a further aspect of the present invention: the upper portion of base cloth layer sets up the outside filter layer of a plurality of orderly arrangement, sets up a plurality of on the acupuncture layer and just butt joint the filtration butt joint fibre layer with outside filter layer, and the filtration butt joint fibre layer link up and offer on polyimide P84 fibre and the superfine glass fiber in the acupuncture in situ.

As the utility model discloses further scheme again: the top of the filtering butt-joint fiber layer is communicated with the external filtering layer.

As a further aspect of the present invention: the base cloth layer and the needle punched layer are bonded through a hot melt adhesive, and the polyimide P84 fiber and the superfine glass fiber are bonded through the hot melt adhesive.

As a further aspect of the present invention: the composite fiber rope is arranged in the base cloth layer and fixed with the inner part of the needled layer in a sewing way.

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

by utilizing the advantages of strong dust blocking capability, excellent corrosion resistance and wear resistance, high toughness of the polyimide P84 fiber, high temperature resistance, good dimensional stability, high breaking strength and the like of the superfine glass fiber, the prepared product has excellent corrosion resistance and strong wear resistance and can be well applied to concrete stirring work.

Uniformly mixing PTFE emulsion and deionized water in a ratio of 3:32, cleaning a base fabric layer and a needled layer, putting the base fabric layer and the needled layer into the mixed solution, soaking for 30 minutes, pressing by a padder with a pressure of 0.5.MPa, and baking for 5 minutes at a temperature of 180 ℃ to finish modification so as to improve the filtering performance of the composite felt; after the PTFE emulsion is modified, the emulsion is continuously attached to the surfaces of the base cloth layer and the needled layer, so that the fiber structure becomes microporous, the filtration efficiency of the product is effectively improved, simultaneously, the entanglement among fibers is facilitated, the mechanical properties of the base cloth layer and the needled layer are improved, and the ash removal performance is also obviously improved.

The base cloth layer and the needled layer are bonded through a hot melt adhesive, and the polyimide P84 fiber and the superfine glass fiber are bonded through the hot melt adhesive, so that the number of movable layers of the base cloth layer and the needled layer is reduced, and the firmness of the filter felt is increased preliminarily; the composite fiber rope is arranged in the base cloth layer and is sewn and fixed with the inner part of the needling layer, so that the base cloth layer and the needling layer are more closely attached, and the firmness between the base cloth layer and the needling layer is improved.

Drawings

FIG. 1 is a schematic structural view of a P glass fiber composite felt for a concrete mixing plant.

FIG. 2 is a schematic structural diagram of a needled layer in a P glass fiber composite felt for a concrete mixing plant.

Fig. 3 is a schematic structural diagram of a three-dimensional structure of a P glass fiber composite felt for a concrete mixing plant.

In the figure: 1-base cloth layer, 2-needling layer, 3-polyimide P84 fiber, 4-composite fiber rope, 5-filtration butt-joint fiber layer, 6-external filtering layer and 7-superfine glass fiber.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments. In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 3, in an embodiment of the present invention, a P glass fiber composite felt for a concrete mixing plant includes a base cloth layer 1 and a needle layer 2; the lower part of the base cloth layer 1 is provided with a needling layer 2, the needling layer 2 consists of polyimide P84 fiber 3 and superfine glass fiber 7, and a plurality of composite fiber ropes 4 with equal spacing are knitted in the base cloth layer 1 and the needling layer 2; by utilizing the advantages of strong dust barrier capability, excellent corrosion resistance and wear resistance, high toughness of the polyimide P84 fiber 3, high temperature resistance, good dimensional stability, high breaking strength and the like of the superfine glass fiber 7, the prepared product has excellent corrosion resistance and strong wear resistance and can be well applied to concrete stirring work.

The upper portion of base cloth layer 1 is seted up a plurality of external filter layer 6 of arranging in order, offers a plurality of on the acupuncture layer 2 and just docks filtering butt joint fibre layer 5 with external filter layer 6, filters butt joint fibre layer 5 and link up and offer on polyimide P84 fibre 3 and superfine glass fiber 7 in acupuncture layer 2.

The base cloth layer 1 and the needled layer 2 are modified through PTFE emulsion, the PTFE emulsion and deionized water are uniformly mixed according to the ratio of 3:22, the base cloth layer 1 and the needled layer 2 are cleaned and then are put into the mixed solution for soaking for 30 minutes, and then are baked for 5 minutes at the temperature of 180 ℃ after being pressed by a padder with the pressure of 0.5MPa, so that the filtering performance of the composite felt is improved; after the PTFE emulsion is modified, the emulsion is continuously attached to the surfaces of the base cloth layer 1 and the needled layer 2, so that the fiber structure becomes microporous, the filtration efficiency of the product is effectively improved, simultaneously entanglement among fibers is facilitated, the mechanical properties of the base cloth layer 1 and the needled layer 2 are improved, and the ash removal performance is also obviously improved.

The polyimide P84 fiber 3 and the superfine glass fiber 7 are mixed according to the ratio of 6:4 to prepare fiber nets with the area density of 15 g/square meter for cross lapping, the upper fiber net layer and the lower fiber net layer are 25 layers, the base cloth layer 1 is arranged on the upper parts of the polyimide P84 fiber 3 and the superfine glass fiber 7 for pre-needling and main needling reinforcement, the needling channel number is 3 channels each, the prepared needled composite felt is high in filtering efficiency, high in dust cleaning efficiency and high in breaking strength, the service life of the product is prolonged, and the cost is reduced.

The top of the filtering butt-joint fiber layer 5 is communicated with the outer filtering layer 6.

The base cloth layer 1 is bonded with the needled layer 2 through a hot melt adhesive, and the polyimide P84 fiber 3 is bonded with the superfine glass fiber 7 through the hot melt adhesive, so that the number of movable layers of the base cloth layer 1 and the needled layer 2 is reduced, and the firmness of the filter felt is increased preliminarily.

The composite fiber rope 4 is arranged inside the base cloth layer 1 and the needled layer 2 and is sewn and fixed, so that the base cloth layer 1 and the needled layer 2 can be attached more closely, and the firmness between the base cloth layer 1 and the needled layer 2 is improved.

It will be evident to those skilled in the art that the invention 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 invention 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A P glass fiber composite felt for a concrete mixing plant comprises a base cloth layer (1) and a needling layer (2); the filter cloth is characterized in that a needling layer (2) is arranged on the lower portion of the base cloth layer (1), the needling layer (2) is composed of polyimide P84 fibers (3) and superfine glass fibers (7), a plurality of filter butt joint fiber layers (5) which are in butt joint with an external filter layer (6) are arranged on the needling layer (2), and the filter butt joint fiber layers (5) penetrate through the polyimide P84 fibers (3) and the superfine glass fibers (7) arranged in the needling layer (2).

2. The P glass fiber composite felt for the concrete mixing station as claimed in claim 1, wherein a plurality of composite fiber ropes (4) with equal spacing are knitted through the base cloth layer (1) and the needled layer (2).

3. The P glass fiber composite felt for the concrete mixing plant as recited in claim 1, wherein the upper part of the base cloth layer (1) is provided with a plurality of outer filter layers (6) which are orderly arranged.

4. The P glass fiber composite felt for the concrete mixing station as recited in claim 3, wherein the top of the filtering butt-joint fiber layer (5) is communicated with the outer filtering layer (6).

5. The P glass fiber composite felt for the concrete mixing station as claimed in claim 1, wherein the base cloth layer (1) and the needle-punched layer (2) are bonded through a hot melt adhesive, and the polyimide P84 fiber (3) and the superfine glass fiber (7) are bonded through a hot melt adhesive.

6. The P glass fiber composite felt for the concrete mixing station as claimed in claim 2, wherein the composite fiber rope (4) is arranged inside the base fabric layer (1) and the needling layer (2) and is sewn and fixed.