CN217778025U

CN217778025U - PF acid and alkali resistant composite needled felt

Info

Publication number: CN217778025U
Application number: CN202222070982.4U
Authority: CN
Inventors: 宋秀玲; 贾广胜; 贾宋勃
Original assignee: Fushun Zhongkai Industrial Filter Cloth Co ltd
Current assignee: Fushun Zhongkai Industrial Filter Cloth Co ltd
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2022-11-11
Anticipated expiration: 2032-08-05

Abstract

The utility model discloses a PF acid and alkali-resistant compound needled felt, including the needled felt body, the top surface of needled felt body is equipped with first back up coat, the bottom surface of needled felt body is equipped with the second back up coat, the bottom surface of second back up coat is equipped with the wearing layer. The utility model discloses, first back up coat through the setting, the second back up coat, the wearing layer, wear-resisting piece, wherein use through the cooperation of first back up coat and second back up coat, can effectively consolidate the acupuncture felt body, the intensity of acupuncture felt body has been improved, the wearing and tearing that the acupuncture felt body received because of the intensity effect is unsatisfactory when using have been reduced, the intensity and the wear-resisting degree of acupuncture felt body have been increased, wherein use through the cooperation of wearing layer and wear-resisting piece, can protect the acupuncture felt body, prevent acupuncture felt body and external direct contact, further reduced the wearing and tearing that the acupuncture felt body received when using, be favorable to prolonging its life.

Description

PF acid and alkali resistant composite needled felt

Technical Field

The utility model relates to a relevant technical field of acupuncture felt especially relates to a compound acupuncture felt of PF acid and alkali-resistance.

Background

The needled felt is a felt-shaped non-woven fabric filter material which is prepared by needling a carded chopped glass fiber felt by using felting needles, mutually entangling fibers among glass fibers of a felt layer and between the glass fibers of the felt layer and a reinforced glass fiber base fabric by a mechanical method and reinforcing a fiber web. Compared with other high-temperature resistant chemical fiber felts, the high-temperature resistant chemical fiber felt has the special advantages of low price, higher temperature resistance and the like, but the running resistance of the high-temperature resistant chemical fiber felt is higher than that of a common chemical fiber high-temperature filter material.

After the conventional PF acid and alkali resistant composite needled felt is used for a long time, the surface of the conventional PF acid and alkali resistant composite needled felt is seriously abraded, so that the abrasion degree of the needled felt is easily accelerated, and the service life of the needled felt is easily shortened.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a PF acid and alkali-resistance composite needled felt possesses the degree of wear-resisting height, long service life's advantage, and then solves the problem in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a PF acid and alkali-resistance composite needled felt, includes needled felt body, the top surface of needled felt body is equipped with first back up coat, the bottom surface of needled felt body is equipped with the second back up coat, the bottom surface of second back up coat is equipped with the wearing layer, and the bottom surface of wearing layer is equipped with wear-resisting piece, the top surface of first back up coat is equipped with the elastic layer, and the top surface of elastic layer is equipped with fire-retardant layer, the top surface of fire-retardant layer is equipped with corrosion-resistant layer.

Preferably, the thickness of the first reinforcing layer is the same as the thickness of the second reinforcing layer.

Preferably, the elastic layer is internally provided with an elastic column, and the elastic column is made of rubber.

Preferably, the elastic columns are arranged in a plurality, and the elastic columns are distributed in the elastic layer at equal intervals.

Preferably, the wear-resisting blocks are arranged in a plurality, and the wear-resisting blocks are uniformly distributed in the wear-resisting layer.

Preferably, the wear-resistant block is of a rectangular structure.

Preferably, the corrosion-resistant layer and the flame-retardant layer have the same thickness.

(III) advantageous effects

Compared with the prior art, the utility model provides a compound acupuncture felt of PF acid and alkali-resistance possesses following beneficial effect:

(1) The utility model discloses in, first back up coat through setting up, the second back up coat, the wearing layer, wear-resisting piece, wherein use through the cooperation of first back up coat and second back up coat, can effectively consolidate the acupuncture felt body, the intensity of acupuncture felt body has been improved, the wearing and tearing that acupuncture felt body received because of the intensity effect is unsatisfactory when using have been reduced, the intensity and the wear-resisting degree of acupuncture felt body have been increased, wherein use through the cooperation of wearing layer and wear-resisting piece, can protect the acupuncture felt body, prevent acupuncture felt body and external direct contact, further reduce the wearing and tearing that acupuncture felt body received when using, be favorable to prolonging its life.

(2) The utility model discloses in, through corrosion-resistant layer, the fire-retardant layer that sets up, wherein through the use on corrosion-resistant layer, can effectively play corrosion-resistant effect to the acupuncture felt body, reduced the corruption that external acid-base caused to the acupuncture felt body, further improved the life of acupuncture felt body, the fire-retardant effect can effectively be played to the acupuncture felt body to the use on fire-retardant layer of rethread, has improved the security of acupuncture felt body when using.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and 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 creative efforts.

Fig. 1 is a schematic structural view of a PF acid and alkali resistant composite needled felt provided by the present invention;

FIG. 2 is an enlarged view of the PF acid and alkali resistant composite needled felt of the present invention;

fig. 3 is a schematic structural view of a wear-resistant layer and a wear-resistant block of the PF acid and alkali resistant composite needled felt.

Illustration of the drawings:

1. needling a felt body; 2. a first reinforcing layer; 3. a second reinforcing layer; 4. a corrosion-resistant layer; 5. a flame retardant layer; 6. an elastic layer; 7. a wear layer; 8. a wear-resistant block; 9. an elastic column.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. 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 the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; 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. 1-3, a PF acid and alkali resistant composite needled felt includes a needled felt body 1, a first reinforcing layer 2 is disposed on a top surface of the needled felt body 1, a second reinforcing layer 3 is disposed on a bottom surface of the needled felt body 1, a wear-resistant layer 7 is disposed on a bottom surface of the second reinforcing layer 3, a wear-resistant block 8 is disposed on a bottom surface of the wear-resistant layer 7, an elastic layer 6 is disposed on a top surface of the first reinforcing layer 2, a flame-retardant layer 5 is disposed on a top surface of the elastic layer 6, and a corrosion-resistant layer 4 is disposed on a top surface of the flame-retardant layer 5, wherein the needled felt body 1 can be effectively reinforced by cooperation of the first reinforcing layer 2 and the second reinforcing layer 3, the strength of the needled felt body 1 is improved, the wear of the needled felt body 1 due to unsatisfactory strength effect is reduced, the strength and the wear-resistant degree of the needled felt body 1 are increased, and the wear-resistant felt body 1 can be protected by cooperation of the wear-resistant layer 7 and the wear-resistant block 8, thereby further reducing the direct contact between the needled felt body 1 and prolonging the service life of the needled felt body.

In one embodiment, the thickness of the first reinforcing layer 2 is the same as that of the second reinforcing layer 3, wherein the needled felt body 1 can be effectively reinforced by the cooperation of the first reinforcing layer 2 and the second reinforcing layer 3, the strength of the needled felt body 1 is improved, the abrasion of the needled felt body 1 caused by unsatisfactory strength effect in use is reduced, and the strength and the abrasion resistance of the needled felt body 1 are improved.

In one embodiment, the elastic column 9 is disposed inside the elastic layer 6, and the elastic column 9 is made of rubber, wherein the elasticity of the needled felt body 1 can be improved by using the elastic layer 6 and the elastic column 9 in a matching manner, so that the stretch resistance of the needled felt body 1 can be enhanced.

In one embodiment, the elastic columns 9 are provided in plurality, and the plurality of elastic columns 9 are distributed in the elastic layer 6 at equal intervals, wherein the elasticity of the elastic layer 6 can be effectively improved by using the plurality of elastic columns 9.

In one embodiment, the wear-resistant blocks 8 are arranged in a plurality, and the wear-resistant blocks 8 are uniformly distributed in the wear-resistant layer 7, wherein the wear-resistant layer 7 and the wear-resistant blocks 8 are used in cooperation, so that the needled felt body 1 can be protected, the needled felt body 1 is prevented from being in direct contact with the outside, the wear of the needled felt body 1 in use is further reduced, and the service life of the needled felt body is prolonged.

In one embodiment, the wear-resistant block 8 is a rectangular structure, wherein the wear-resistant block 8 on the wear-resistant layer 7 is firstly contacted with the outside through the use of the wear-resistant block 8 on the wear-resistant layer 7, so as to prevent the needled felt body 1 from being directly contacted with the outside, thereby facilitating the reduction of the wear of the needled felt body 1.

In one embodiment, the thickness of the corrosion-resistant layer 4 is the same as that of the flame-retardant layer 5, wherein the corrosion-resistant layer 4 is used to effectively resist corrosion to the needled felt body 1, corrosion of external acid and alkali to the needled felt body 1 is reduced, the service life of the needled felt body 1 is further prolonged, the flame-retardant layer 5 is used to effectively resist flame to the needled felt body 1, and the safety of the needled felt body 1 in use is improved.

The working principle is as follows:

during the use, use through the cooperation of first back up coat 2 and second back up coat 3, can effectively consolidate acupuncture felt body 1, the intensity of acupuncture felt body 1 has been improved, the wearing and tearing that acupuncture felt body 1 received because of the intensity effect is unsatisfactory when using have been reduced, the intensity and the abrasion resistance of acupuncture felt body 1 have been increased, wherein use through the cooperation of wearing layer 7 and wear-resisting piece 8, can protect acupuncture felt body 1, prevent acupuncture felt body 1 and external direct contact, further reduce the wearing and tearing that acupuncture felt body 1 received when using, be favorable to prolonging its life, wherein use through corrosion-resistant layer 4, can effectively play corrosion-resistant effect to acupuncture felt body 1, the external acid-base corruption that causes acupuncture felt body 1 has been reduced, the life of acupuncture felt body 1 has further been improved, the use of rethread flame retardant layer 5, can effectively play fire-retardant efficiency to acupuncture felt body 1, the security of acupuncture felt body 1 when using has been improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a PF acid and alkali-resistance composite needled felt, includes needled felt body (1), its characterized in that, the top surface of needled felt body (1) is equipped with first back up coat (2), the bottom surface of needled felt body (1) is equipped with second back up coat (3), the bottom surface of second back up coat (3) is equipped with wearing layer (7), and the bottom surface of wearing layer (7) is equipped with wear-resisting piece (8), the top surface of first back up coat (2) is equipped with elastic layer (6), and the top surface of elastic layer (6) is equipped with fire-retardant layer (5), the top surface of fire-retardant layer (5) is equipped with corrosion-resistant layer (4).

2. The PF acid and alkali resistant composite needled felt according to claim 1, wherein the thickness of the first reinforcing layer (2) is the same as the thickness of the second reinforcing layer (3).

3. The PF acid and alkali resistant composite needled felt according to claim 1, wherein the elastic layer (6) is internally provided with elastic columns (9), and the elastic columns (9) are made of rubber.

4. The PF acid and alkali resistant composite needled felt according to claim 3, wherein the elastic columns (9) are provided in plurality, and the elastic columns (9) are distributed in the elastic layer (6) at equal intervals.

5. The PF acid and alkali resistant composite needled felt according to claim 1, wherein a plurality of wear-resistant blocks (8) are arranged, and the wear-resistant blocks (8) are uniformly distributed in the wear-resistant layer (7).

6. The PF acid and alkali resistant composite needled felt according to claim 1, wherein the wear-resistant block (8) is of a rectangular structure.

7. The PF acid and alkali resistant composite needled felt according to claim 1, wherein the thickness of the corrosion-resistant layer (4) is the same as that of the flame-retardant layer (5).