Low-resistance dust removal filter bag with double-sided oil-proof and water-proof functions

Abstract

The utility model discloses a low-resistance dust removal filter bag with double-sided oil-proof and water-proof functions, and relates to the technical field of dust removal filter bags, the low-resistance dust removal filter bag with double-sided oil-proof and water-proof functions comprises a filter bag, a support frame is arranged on the outer side of the filter bag, and a dust removal bin is fixedly arranged on the outer side of the support frame; the filter bag comprises two protective layers, reinforcing layers are bonded between the opposite faces of the two protective layers, connecting layers are fixedly arranged in the two reinforcing layers, a space defined by the connecting layers and the reinforcing layers is filled with filler in a compacted mode, each protective layer comprises a first waterproof and oil-proof film bonded with the corresponding reinforcing layer, and the first waterproof and oil-proof film comprises a second waterproof and oil-proof film bonded with the corresponding reinforcing layer. A second waterproof and oil-proof film is adhered to the outer side of the first waterproof and oil-proof film, the second waterproof and oil-proof film is made of a polytetrafluoroethylene film, and the outer side of the polytetrafluoroethylene film is coated with a waterproof and oil-proof coating. The low-resistance dust removal filter bag with the double-sided oil-proof and water-proof functions is convenient for double-sided water-proof and oil-proof, and is good in water-proof and oil-proof effects and wide in application range.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal filter bags, in particular to a low-resistance dust removal filter bag with double-sided oil and water resistance functions. Background Art

[0002] Dust filter bags are a type of high-efficiency dust removal filter material that is widely used in various industrial fields to reduce particulate matter and dust in the air, thereby protecting the environment and human health.

[0003] Dust filter bags are made from a variety of materials, including polyester, PPS (polyphenylene sulfide), PP (polypropylene), aramid fiber, nylon fiber, glass fiber, and PTFE (polytetrafluoroethylene). Filter bags made from different materials have varying performance characteristics, such as temperature resistance, corrosion resistance, and wear resistance. For example, polyester filter bags offer excellent acid and alkali resistance and abrasion resistance, making them suitable for general industrial dust filtration. PTFE filter bags, on the other hand, offer excellent chemical and high temperature resistance, making them suitable for dust filtration under extreme conditions.

[0004] At present, there are many types of dust filter bags. The outer surface of the dust filter bag has good waterproof and oil-proof properties. However, during use, under special conditions, the outer and inner surfaces of the dust filter bag need to have waterproof and oil-proof properties. However, the existing dust filter bags cannot achieve double-sided waterproof and oil-proof properties.

[0005] Therefore, in response to the above problems, it is necessary for the applicant to design a low-resistance dust removal filter bag with double-sided oil and water resistance to solve the problem. Summary of the Invention

[0006] The purpose of the utility model is to provide a low-resistance dust removal filter bag with double-sided oil and water resistance functions to solve the problems mentioned in the above background technology.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a low-resistance dust removal filter bag with double-sided oil and water-proof functions, comprising a filter bag, a support frame is provided on the outside of the filter bag, and a dust removal bin is fixedly provided on the outside of the support frame, the filter bag comprises two protective layers, and a reinforcement layer is bonded between the opposite surfaces of the two protective layers, a connecting layer is fixedly provided inside the two reinforcement layers, and the space enclosed by the connecting layer and the reinforcement layer is compacted and filled with filler, the protective layer comprises a first waterproof and oil-proof film bonded to the reinforcement layer, and a second waterproof and oil-proof film is bonded to the outside of the first waterproof and oil-proof film.

[0008] Furthermore, the first waterproof and oil-proof film is made of a polyurethane film, and two sides of the polyurethane film are respectively bonded to the second waterproof and oil-proof film and the reinforcement layer.

[0009] Through the above structural design, polyurethane is a polymer material with excellent elasticity and wear resistance. In the field of waterproof and breathable filter membranes, the polyurethane membrane is processed through a special process to form a thin film with a microporous structure. This film not only has good waterproof performance, but also can effectively prevent the invasion of dust and microorganisms.

[0010] Furthermore, the second waterproof and oil-proof film is made of a polytetrafluoroethylene film, the outer side of the polytetrafluoroethylene film is coated with a waterproof and oil-proof coating, and the material of the waterproof and oil-proof coating is wax.

[0011] Through the above structural design, polytetrafluoroethylene is a polymer material with excellent chemical stability and high temperature resistance. The polytetrafluoroethylene membrane has extremely low surface tension and good non-stickiness, which can effectively prevent the penetration of moisture and liquid pollutants. At the same time, its unique microporous structure allows gas molecules to pass smoothly, thereby realizing ventilation and filtration functions.

[0012] Furthermore, the connecting layer is made of polyester needle-punched felt, the two reinforcement layers are protective grids, and the two protective grids are fixedly bonded to both sides of the polyester needle-punched felt.

[0013] Through the above structural design, the protective grid is used to improve the toughness of the filter bag and facilitate filling of the filler.

[0014] Furthermore, the material of the reinforcement layer is preferably an aluminum alloy mesh.

[0015] Through the above structural design, the aluminum alloy grid has excellent flexibility, which will make the filter bag easy to deform and have a wide range of applications.

[0016] Furthermore, the filler is made of polyester fiber with a waterproof and oil-proof agent coated on the outer surface, and the waterproof and oil-proof agent is preferably a fluorocarbon waterproof and oil-proof agent.

[0017] Through the above structural design, the lightweight polyester fiber filler is easy to coat with a fluorocarbon waterproof and oil-proof agent. The fluorocarbon waterproof and oil-proof agent can form a dense waterproof and oil-proof layer on the surface of the material through its special molecular structure, effectively preventing the penetration of water and grease.

[0018] Compared with the prior art, the beneficial effects of the utility model are: the low-resistance dust removal filter bag with double-sided oil and water repellency is convenient for double-sided waterproof and oil repellency, and has good waterproof and oil repellency effects and a wide range of applications. The specific contents are as follows:

[0019] The low-resistance dust filter bag with double-sided oil and water-proof functions is provided with a connecting layer, a reinforcement layer, and a protective layer from the inside to the outside, wherein the connecting layer is polyester needle-punched felt, the reinforcement layer is a protective grid woven with aluminum alloy wire, and the protective layer is composed of, from the inside to the outside, a first waterproof and oil-proof film made of polyurethane film, a second waterproof and oil-proof film made of polytetrafluoroethylene film, and a waterproof and oil-proof coating made of wax. The polyurethane film, polytetrafluoroethylene film and wax coating are all excellent waterproof and oil-proof materials, which make the outer surface and inner surface of the overall dust filter bag waterproof and oil-proof, and the waterproof and oil-proof effect is good, thereby making the dust filter bag have a wide range of applications and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the installation structure of the filter bag of the utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the filter bag of the utility model;

[0022] Figure 3 This is a schematic diagram of the split structure of the protective layer of the utility model;

[0023] Figure 4 This is a schematic diagram of the connection structure of the connecting layer, filling material and reinforcement layer of the utility model.

[0024] In the figure: 1. Filter bag; 2. Support frame; 3. Dust removal chamber; 4. Protective layer; 5. Reinforcement layer; 6. Connecting layer; 7. First waterproof and oil-proof membrane; 8. Second waterproof and oil-proof membrane; 9. Waterproof and oil-proof coating; 10. Protective grid; 11. Filling material. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] like Figure 1-Figure 4As shown, the utility model is a low-resistance dust removal filter bag with double-sided oil and water proof functions, including a filter bag 1, a support frame 2 is provided on the outside of the filter bag 1, and a dust removal bin 3 is fixedly provided on the outside of the support frame 2, the filter bag 1 comprises two protective layers 4, and a reinforcement layer 5 is bonded between the opposite surfaces of the two protective layers 4, a connecting layer 6 is fixedly provided inside the two reinforcement layers 5, and the space enclosed by the connecting layer 6 and the reinforcement layer 5 is compacted and filled with filler 11, the protective layer 4 comprises a first waterproof and oil-proof film 7 bonded to the reinforcement layer 5, and a second waterproof and oil-proof film 8 is bonded to the outside of the first waterproof and oil-proof film 7.

[0027] The first waterproof and oil-proof membrane 7 is made of polyurethane film, and the two sides of the polyurethane film are respectively bonded to the second waterproof and oil-proof membrane 8 and the reinforcement layer 5. Polyurethane is a polymer material with excellent elasticity and wear resistance. In the field of waterproof and breathable filter membranes, the polyurethane film is processed by a special process to form a film with a microporous structure. This film not only has good waterproof performance, but also can effectively prevent the invasion of dust and microorganisms. The second waterproof and oil-proof membrane 8 is made of polytetrafluoroethylene film. The outside of the polytetrafluoroethylene film is coated with a waterproof and oil-proof coating 9, and the material of the waterproof and oil-proof coating 9 is wax. Polytetrafluoroethylene is a polymer material with excellent chemical stability and high temperature resistance. The polytetrafluoroethylene membrane has extremely low surface tension and good non-stickiness, which can effectively prevent the penetration of moisture and liquid pollutants. At the same time, its unique microporous structure allows gas molecules to pass smoothly, thereby realizing breathability and filtering functions.

[0028] The connecting layer 6 is made of polyester needle felt, and the two reinforcement layers 5 are protective grids 10, and the two protective grids 10 are fixedly bonded to both sides of the polyester needle felt. The protective grids 10 are used to improve the toughness of the filter bag 1 and to fill the filler 11. The material of the reinforcement layer 5 is preferably an aluminum alloy grid. The aluminum alloy grid has excellent flexibility, which will make the filter bag 1 easy to deform and has a wide range of applications. The filler 11 is made of polyester fiber with a waterproof and oil-proof agent coated on the outer surface, and the waterproof and oil-proof agent is preferably a fluorocarbon waterproof and oil-proof agent. The lightweight polyester fiber filler 11 is easy to coat with a fluorocarbon waterproof and oil-proof agent. The fluorocarbon waterproof and oil-proof agent can form a dense waterproof and oil-proof layer on the surface of the material through its special molecular structure, effectively preventing the penetration of water and grease.

[0029] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A low-resistance dust removal filter bag with double-sided oil and water repellency, comprising a filter bag (1), characterized in that: A support frame (2) is provided on the outside of the filter bag (1), and a dust removal bin (3) is fixedly provided on the outside of the support frame (2). The filter bag (1) comprises two protective layers (4), and a reinforcement layer (5) is bonded between the opposite surfaces of the two protective layers (4). A connecting layer (6) is fixedly provided inside the two reinforcement layers (5), and a filling material (11) is compacted and filled in the space enclosed by the connecting layer (6) and the reinforcement layer (5). The protective layer (4) comprises a first waterproof and oil-proof film (7) bonded to the reinforcement layer (5), and a second waterproof and oil-proof film (8) is bonded to the outside of the first waterproof and oil-proof film (7).

2. The low-resistance dust filter bag with double-sided oil and water repellency according to claim 1, characterized in that: The material of the first waterproof and oil-proof film (7) is a polyurethane film, and both sides of the polyurethane film are respectively bonded to the second waterproof and oil-proof film (8) and the reinforcement layer (5).

3. The low-resistance dust filter bag with double-sided oil and water repellency according to claim 2, characterized in that: The material of the second waterproof and oil-proof film (8) is a polytetrafluoroethylene film, the outer side of the polytetrafluoroethylene film is coated with a waterproof and oil-proof coating (9), and the material of the waterproof and oil-proof coating (9) is wax.

4. The low-resistance dust filter bag with double-sided oil and water repellency according to claim 1, characterized in that: The material of the connecting layer (6) is polyester needle felt, the two reinforcement layers (5) are protective grids (10), and the two protective grids (10) are fixedly bonded to both sides of the polyester needle felt.

5. The low-resistance dust filter bag with double-sided oil and water repellency according to claim 4, characterized in that: The reinforcement layer (5) is made of an aluminum alloy grid.

6. The low-resistance dust filter bag with double-sided oil and water repellency according to claim 1, characterized in that: The filler (11) is made of polyester fiber with a waterproof and oil-proof agent coated on the outer surface, and the waterproof and oil-proof agent is a fluorocarbon waterproof and oil-proof agent.

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