Acid-alkali-resistant high-temperature-resistant composite dust removal filter bag

Abstract

The utility model discloses an acid-base-resistant high-temperature-resistant composite dust removal filter bag which comprises a composite dust removal filter bag body, and the composite dust removal filter bag body comprises an inner layer and an outer layer. According to the utility model, the support layer and the stainless steel woven net have good corrosion resistance and high temperature resistance, have a certain filtering effect and can play a role in supporting, the acid and alkali resistant layer and the PTFE filter bag have excellent heat resistance, acid and alkali resistance and corrosion resistance and are suitable for extremely severe environmental conditions, and the high-temperature resistant layer is arranged, so that the service life of the filter bag is prolonged. The nylon fiber has excellent heat resistance, acid and alkali resistance and corrosion resistance and is suitable for treating high-temperature, high-humidity and high-oil-content gas environments, the tensile layer and the PPS filter bag have good wear resistance, tensile resistance and wrinkle resistance, the antistatic layer and the antistatic cloth have the advantage of preventing static conduction, external static can be prevented from being transferred inwards, and the service life of the filter bag is prolonged. By arranging the anti-aging layer, PVDF has excellent corrosion resistance and high temperature resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal filter bags, in particular to an acid, alkali and high temperature resistant composite dust removal filter bag. Background Art

[0002] Dust filter bag is a kind of high-efficiency dust removal filter material. The dust filter bag is made of polyester staple fiber, PPS fiber, PP polypropylene, aramid fiber, and nylon fiber. The service life is generally 2-4 years. It has good air permeability, high dust collection rate, easy cleaning, and dust removal efficiency of up to 98.99%. It can effectively remove PM2.5. However, the existing dust filter bag has a relatively single function during use and cannot meet the requirements of acid and alkali resistance, high temperature resistance and aging resistance at the same time, resulting in a short service life. Therefore, an acid, alkali and high temperature resistant composite dust filter bag is proposed to solve the above problems. Utility Model Content

[0003] (1) Technical problems solved

[0004] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide an acid, alkali and high temperature resistant composite dust removal filter bag, which has the advantages of good acid, alkali and high temperature resistance.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution, a technical solution adopted by an acid-resistant, alkali-resistant and high-temperature resistant composite dust filter bag is: it includes a composite dust filter bag body, the composite dust filter bag body includes an inner layer and an outer layer, the inner layer includes a support layer, an acid-resistant and alkali-resistant layer and a high-temperature resistant layer, the inner cavity of the composite dust filter bag body is placed with a support frame, and the outer layer includes an anti-tensile layer, an anti-static layer and an aging-resistant layer.

[0007] As a preferred solution, the support layer is located on the inner surface of the acid and alkali resistant layer, and the acid and alkali resistant layer is located on the inner surface of the high temperature resistant layer.

[0008] As a preferred solution, the support layer is made of a stainless steel woven mesh, and the inner surface of the support layer is provided with a limiting groove adapted to the support frame.

[0009] As a preferred solution, the material of the acid and alkali resistant layer is a PTFE filter bag, and the material of the high temperature resistant layer is nylon fiber.

[0010] As a preferred solution, the aging-resistant layer is located on the outer surface of the antistatic layer, and the antistatic layer is located on the outer surface of the anti-stretching layer.

[0011] As a preferred solution, the material of the anti-stretching layer is a PPS filter bag, and the material of the anti-static layer is an anti-static cloth.

[0012] As a preferred solution, the material of the aging-resistant layer is PVDF, and the acid- and alkali-resistant layer, the high-temperature-resistant layer, the anti-stretching layer, the anti-static layer and the aging-resistant layer are all fixed by sewing thread.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the utility model provides an acid, alkali and high temperature resistant composite dust removal filter bag, which has the following beneficial effects.

[0015] 1. By setting the support layer, the stainless steel woven mesh has good corrosion resistance and high temperature resistance, has a certain filtering effect, and can play a supporting role. By setting the acid and alkali resistant layer, the PTFE filter bag has excellent heat resistance, acid and alkali resistance and corrosion resistance, and is suitable for extremely harsh environmental conditions. By setting the high temperature resistant layer, the nylon fiber has excellent heat resistance, acid and alkali resistance and corrosion resistance, and is suitable for processing high temperature, high humidity, and high oil gas environment.

[0016] 2. By setting the anti-stretching layer, the PPS filter bag has good wear resistance, tensile resistance and wrinkle resistance. By setting the anti-static layer, the anti-static cloth has the advantage of preventing static electricity conduction and can block the external static electricity from being transmitted inward. By setting the anti-aging layer, PVDF has excellent corrosion resistance and high temperature resistance, can withstand the corrosion of strong acids, strong alkalis and other organic solvents, and has good anti-aging properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the composition structure of the inner layer of the utility model;

[0019] Figure 3 It is a left side schematic diagram of the support layer and support frame of the utility model;

[0020] Figure 4 This is a schematic diagram of the composition structure of the outer layer of the utility model.

[0021] In the figure: 1. Composite dust filter bag body; 2. Inner layer; 21. Support layer; 22. Acid and alkali resistant layer; 23. High temperature resistant layer; 3. Outer layer; 31. Anti-stretching layer; 32. Anti-static layer; 33. Anti-aging layer; 4. Support frame. DETAILED DESCRIPTION

[0022] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0025] The composite dust filter bag body 1, inner layer 2, support layer 21, acid and alkali resistant layer 22, high temperature resistant layer 23, outer layer 3, anti-tensile layer 31, anti-static layer 32, aging resistant layer 33 and support frame 4 components of the present application are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods.

[0026] Example 1:

[0027] See also Figure 1-4In order to achieve the purpose of acid and alkali resistance and high temperature resistance, this embodiment provides the following technical solutions, which specifically disclose: including a composite dust filter bag body 1, the composite dust filter bag body 1 includes an inner layer 2 and an outer layer 3, the inner layer 2 includes a support layer 21, an acid and alkali resistant layer 22 and a high temperature resistant layer 23, the inner cavity of the composite dust filter bag body 1 is provided with a support frame 4, the support layer 21 is located on the inner surface of the acid and alkali resistant layer 22, the acid and alkali resistant layer 22 is located on the inner surface of the high temperature resistant layer 23, the material of the support layer 21 is a stainless steel woven mesh, and the inner surface of the support layer 21 is provided with a limiter adapted to the support frame 4 Groove, the material of the acid and alkali resistant layer 22 is PTFE filter bag, and the material of the high temperature resistant layer 23 is nylon fiber. By setting the support layer 21, the stainless steel woven mesh has good corrosion resistance and high temperature resistance, has a certain filtering effect, and can play a supporting role. By setting the acid and alkali resistant layer 22, the PTFE filter bag has excellent heat resistance, acid and alkali resistance and corrosion resistance, and is suitable for extremely harsh environmental conditions. By setting the high temperature resistant layer 23, the nylon fiber has excellent heat resistance, acid and alkali resistance and corrosion resistance, and is suitable for processing high temperature, high humidity, and high oil gas environment.

[0028] Example 2:

[0029] See also Figure 1-4 , in order to achieve the purpose of stretch resistance and aging resistance, this embodiment provides the following technical solutions, specifically disclosed: the outer layer 3 includes an anti-stretching layer 31, an anti-static layer 32 and an aging-resistant layer 33, the aging-resistant layer 33 is located on the outer surface of the anti-static layer 32, and the anti-static layer 32 is located on the outer surface of the anti-stretching layer 31, the material of the anti-stretching layer 31 is PPS filter bag, the material of the anti-static layer 32 is anti-static cloth, and the material of the aging-resistant layer 33 is PVDF, the acid and alkali resistant layer 22, the high temperature resistant layer 23, the anti-stretching layer 31, the anti-static layer 32 and the aging-resistant layer 33 are all sutured and fixed by sewing thread, by setting the anti-stretching layer 31, the PPS filter bag has good wear resistance, stretch resistance and wrinkle resistance, by setting the anti-static layer 32, the anti-static cloth has the advantage of preventing static electricity conduction, and can block external static electricity from being transmitted inward, by setting the aging-resistant layer 33, PVDF has excellent corrosion resistance and high temperature resistance, can withstand the corrosion of organic solvents such as strong acids and strong alkalis, and has good aging resistance.

[0030] The working principle of the present invention is as follows: by setting the support layer 21, the stainless steel woven mesh has good corrosion resistance and high temperature resistance, has a certain filtering effect, and can play a supporting role, so that the composite dust filter bag body 1 can be easily arranged and has excellent support. By setting the acid and alkali resistant layer 22, the PTFE filter bag has excellent heat resistance, acid and alkali resistance and corrosion resistance, and is suitable for extremely harsh environmental conditions, and can improve the acid and alkali resistance inside the composite dust filter bag body 1. By setting the high temperature resistant layer 23, the nylon fiber has excellent heat resistance, acid and alkali resistance and corrosion resistance, and is suitable for processing high temperature, high humidity, and high oil content. Gas environment, can improve the high temperature resistance inside the composite dust filter bag body 1. By setting the anti-stretching layer 31, the PPS filter bag has good wear resistance, tensile resistance and wrinkle resistance, which can improve the tensile resistance of the composite dust filter bag body 1. By setting the anti-static layer 32, the anti-static cloth has the advantage of preventing static electricity conduction and can block external static electricity from being transmitted inward. By setting the aging-resistant layer 33, PVDF has excellent corrosion resistance and high temperature resistance, can withstand corrosion from strong acids, strong alkalis and other organic solvents, has good anti-aging properties, can effectively improve the anti-aging performance of the composite dust filter bag body 1 and extend its service life.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the scope of protection of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. An acid-resistant, alkali-resistant and high-temperature resistant composite dust filter bag, comprising a composite dust filter bag body (1), characterized in that: The composite dust removal filter bag body (1) comprises an inner layer (2) and an outer layer (3), wherein the inner layer (2) comprises a support layer (21), an acid and alkali resistant layer (22) and a high temperature resistant layer (23), a support frame (4) is placed in the inner cavity of the composite dust removal filter bag body (1), and the outer layer (3) comprises an anti-stretching layer (31), an antistatic layer (32) and an anti-aging layer (33).

2. The acid-resistant, alkali-resistant and high-temperature-resistant composite dust filter bag according to claim 1, characterized in that: The support layer (21) is located on the inner surface of the acid and alkali resistant layer (22), and the acid and alkali resistant layer (22) is located on the inner surface of the high temperature resistant layer (23).

3. The acid-resistant, alkali-resistant and high-temperature-resistant composite dust removal filter bag according to claim 1, characterized in that: The support layer (21) is made of a stainless steel mesh, and the inner surface of the support layer (21) is provided with a limiting groove that matches the support frame (4).

4. The acid-resistant, alkali-resistant and high-temperature-resistant composite dust filter bag according to claim 1, characterized in that: The material of the acid and alkali resistant layer (22) is a PTFE filter bag, and the material of the high temperature resistant layer (23) is nylon fiber.

5. The acid-resistant, alkali-resistant and high-temperature-resistant composite dust filter bag according to claim 1, characterized in that: The aging-resistant layer (33) is located on the outer surface of the antistatic layer (32), and the antistatic layer (32) is located on the outer surface of the anti-stretching layer (31).

6. The acid-resistant, alkali-resistant and high-temperature-resistant composite dust filter bag according to claim 1, characterized in that: The material of the anti-stretching layer (31) is a PPS filter bag, and the material of the antistatic layer (32) is an antistatic cloth.

7. The acid-resistant, alkali-resistant and high-temperature-resistant composite dust filter bag according to claim 1, characterized in that: The material of the aging-resistant layer (33) is PVDF, and the acid-alkali resistant layer (22), the high-temperature resistant layer (23), the anti-stretching layer (31), the antistatic layer (32) and the aging-resistant layer (33) are all fixed by sewing thread.

Images