CN219231740U

CN219231740U - Filter material structure with antistatic coating and dedusting filter bag

Info

Publication number: CN219231740U
Application number: CN202222327174.1U
Authority: CN
Inventors: 方硕; 陈酩明; 田清源; 梁运动; 房利生
Original assignee: Anhui Shiqing Environmental Protection Technology Co ltd
Current assignee: Anhui Shiqing Environmental Protection Technology Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2023-06-23
Anticipated expiration: 2032-08-31

Abstract

The utility model relates to the technical field of filter materials, in particular to a filter material structure with an antistatic coating and a dedusting filter bag, wherein the filter material structure comprises a base layer and the antistatic coating covered on the base layer; the surface of the antistatic coating is covered with a graphene layer; the surface of the graphene layer is covered with an aluminum oxide layer. According to the filter material structure with the antistatic coating, the antistatic coating and the graphene form the double-layer conductive layer, so that the static dissipation speed is improved, and electricity generation by aggregation is avoided; meanwhile, the graphene layer plays a role in conducting the antistatic coating, so that the durability of the antistatic effect is ensured; the aluminum oxide layer is covered on the surface of the graphene layer, so that the defect of insufficient thermal stability of the graphene layer is overcome, and the filter material still maintains good antistatic capacity in a high-temperature environment.

Description

Filter material structure with antistatic coating and dedusting filter bag

Technical Field

The utility model relates to the technical field of filter materials, in particular to a filter material structure with an antistatic coating and a dedusting filter bag.

Background

The filter material is often a polymer nonwoven fabric, and when fiber particles and pipelines or filter materials generate intense and frequent friction and collision, intense static electricity is generated. Furthermore, the dust-containing gas flow enters the working area and is uncharged, and fiber particles in the dust-containing gas flow and filter particles generate strong tangential collision, so that electron exchange is generated between the fiber particles and the filter particles, namely static electricity is generated, namely saturated gas current is generated. After the object is charged, static electricity is always released. There are two pathways for the release of charge: firstly, natural dissipation and secondly, different forms of discharge. Electrostatic discharge is a process of converting electric energy into heat energy, and may generate electric sparks, thereby becoming a fire source for fire or detonation.

In the prior art, static electricity is generally eliminated by spraying an antistatic coating on the surface of a filter material. Although it has a good antistatic effect in the initial stage of use, the antistatic coating may cause blocking of the conductive path due to breakdown, oxidation, etc. with use, and thus the antistatic effect may be reduced.

Disclosure of Invention

The utility model provides a filter material structure with an antistatic coating and a dedusting filter bag aiming at the defects of the prior art.

The utility model solves the technical problems by the following technical means:

a filter material structure with antistatic coating comprises a base layer and an antistatic coating covered on the base layer;

the surface of the antistatic coating is covered with a graphene layer; the surface of the graphene layer is covered with an aluminum oxide layer.

As an improvement of the technical scheme, the filter material structure with the antistatic coating has a rough surface.

As the improvement of the technical scheme, the filter material structure with the antistatic coating is characterized in that: the surface of the antistatic coating is a rough surface with S-shaped grooves.

As an improvement of the technical scheme, the filter material structure with the antistatic coating has the surface of a rough surface with grid-type groove grains.

As an improvement of the technical scheme, the filter material structure with the antistatic coating is characterized in that the antistatic coating is a conductive fiber antistatic coating or a conductive metal powder antistatic coating.

As an improvement of the technical scheme, the filter material structure with the antistatic coating is characterized in that the alumina layer is a nano alumina layer.

A dedusting filter bag is made of the filter material structure with the antistatic coating.

The utility model has the advantages that: according to the filter material structure with the antistatic coating, the antistatic coating and the graphene form the double-layer conductive layer, so that the static dissipation speed is improved, and electricity generation by aggregation is avoided; meanwhile, the graphene layer plays a role in conducting the antistatic coating, so that the durability of the antistatic effect is ensured; the aluminum oxide layer is covered on the surface of the graphene layer, so that the defect of insufficient thermal stability of the graphene layer is overcome, and the filter material still maintains good antistatic capacity in a high-temperature environment.

Drawings

Fig. 1 is a schematic structural diagram of a filter material structure with an antistatic coating according to the present utility model.

FIG. 2 is a schematic view of the surface structure of the antistatic coating of the present utility model.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example referring to fig. 1, a filter material structure with an antistatic coating layer comprises a base layer 1 and an antistatic coating layer 2 coated on the base layer 1;

the antistatic coating 2 covers the surface of the base layer 1 to form a conductive channel, so that static electricity can be dissipated, and the base layer 1 can be a multilayer structure consisting of a surface layer, a middle layer, a bottom layer and the like.

The surface of the antistatic coating 2 is covered with a graphene layer 3; the surface of the graphene layer 3 is covered with an alumina layer 4.

The surface of the antistatic coating 2 is covered with the graphene layer 3, on one hand, a double conductive layer is formed between the antistatic coating 2 and the graphene layer 3, so that static electricity can be quickly dissipated, and electricity generation due to aggregation is avoided; on the other hand, when the antistatic coating 2 is blocked (broken down, oxidized and the like) in a conductive channel, the graphene layer 3 covers the surface of the antistatic coating 2, and the conductive capability of the graphene layer 3 is utilized to conduct a conductive path of the antistatic coating 2, so that the durability of the antistatic effect is ensured; the aluminum oxide layer 4 is covered on the surface of the graphene layer 3, so that the defect of insufficient thermal stability of the graphene layer 3 is overcome, and the filter material still maintains good antistatic capacity in a high-temperature environment.

According to the filter material structure with the antistatic coating, the antistatic coating and the graphene form the double-layer conductive layer, so that the static dissipation speed is improved, and electricity generation by aggregation is avoided; meanwhile, the graphene layer plays a role in conducting the antistatic coating, so that the durability of the antistatic effect is ensured; the aluminum oxide layer is covered on the surface of the graphene layer, so that the defect of insufficient thermal stability of the graphene layer is overcome, and the filter material still maintains good antistatic capacity in a high-temperature environment.

As a modification of the above technical solution, referring to fig. 2, the surface of the antistatic coating layer 2 is a rough surface.

The surface of the antistatic coating 2 is roughened to form a rough surface, so that the bonding area between the antistatic coating 2 and the graphene layer 3 is increased, on one hand, the bonding compactness is improved, and more importantly, the graphene layer 3 partially stretches into the antistatic coating 2, so that the antistatic coating 2 is integrally communicated, the blocking possibility of a conductive channel of the antistatic coating 2 is reduced, and the antistatic effect is ensured; the rough surface can be formed by pressing with a pressing roller having rough grains on the surface. The asperities are S-shaped or grid-shaped or other forms of flutes.

As an improvement of the above technical solution, the antistatic coating 2 is a conductive fiber antistatic coating or a conductive metal powder antistatic coating.

As an improvement of the above technical solution, the alumina layer 4 is a nano alumina layer.

It is noted that relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A filter material structure with an antistatic coating comprises a base layer (1) and an antistatic coating (2) covered on the base layer (1); the method is characterized in that:

the surface of the antistatic coating (2) is covered with a graphene layer (3); the surface of the graphene layer (3) is covered with an aluminum oxide layer (4).

2. A filter media construction with an antistatic coating according to claim 1, characterized in that: the surface of the antistatic coating (2) is a rough surface.

3. A filter media construction with an antistatic coating according to claim 2, characterized in that: the surface of the antistatic coating (2) is a rough surface with S-shaped grooves.

4. A filter media construction with an antistatic coating according to claim 2, characterized in that: the surface of the antistatic coating (2) is a rough surface with grid-type groove grains.

5. A filter media construction with an antistatic coating according to claim 1, characterized in that: the antistatic coating (2) is a conductive fiber antistatic coating or a conductive metal powder antistatic coating.

6. A filter media construction with an antistatic coating according to claim 1, characterized in that: the alumina layer (4) is a nano alumina layer.

7. A dust removal filter bag, characterized in that: a filter structure with an antistatic coating according to any one of claims 1-6.