A novel basalt fiber dust collector bag

Through a multi-layer composite filtration structure and support design, the problem of filtration efficiency and durability of traditional dust collector bags in high temperature, high humidity or corrosive gas environments has been solved, achieving a high-efficiency and durable dust removal effect.

CN224270522UActive Publication Date: 2026-05-26JIANGSU DINGSHENG FILTER BAG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU DINGSHENG FILTER BAG CO LTD
Filing Date
2025-06-09
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional dust collector bags lack filtration efficiency and durability in high temperature, high humidity, or corrosive gas environments, and basalt fiber is not widely used in the field of dust collector bags.

Method used

It adopts a multi-layer composite filter structure, including a basalt fiber filter layer, a nylon filter layer, a polypropylene filter layer, and a polyester filter layer, combined with a support layer and a support cavity design, and uses a top connecting ring and a rubber sealing ring to improve high temperature resistance, corrosion resistance and structural strength.

Benefits of technology

It significantly improves the filtration efficiency and durability of dust collector bags, enabling them to operate stably for extended periods under harsh conditions, ensuring gas sealing and structural integrity.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

This utility model discloses a novel basalt fiber dust collector bag in the field of dust collector bag technology. It includes a filter bag body with an internal filtration cavity. The filter bag body comprises a base fabric, with a basalt fiber filter layer fixedly connected to the inner wall of the base fabric. A support layer is fixedly connected to the inner wall of the basalt fiber filter layer, and a nylon filter layer is disposed on the inner wall of the support layer. Through this multi-layer composite filtration structure (including a basalt fiber filter layer, a nylon filter layer, a polypropylene filter layer, and a polyester filter layer), it can effectively intercept dust particles of different sizes, improving overall filtration efficiency. The introduction of basalt fiber significantly improves the high-temperature resistance and corrosion resistance of the dust collector bag, enabling it to operate stably for a long time under harsh working conditions and extending its service life. The design of the support layer and the support cavity, as well as the setting of the support columns, effectively enhance the structural strength of the dust collector bag, preventing deformation or damage under high pressure differentials.
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Description

Technical Field

[0001] This utility model relates to the field of dust collector bag technology, specifically a novel basalt fiber dust collector bag. Background Technology

[0002] Although the document does not directly provide a detailed description of the background technology, relevant information can be inferred from its innovative points and technical fields. Traditional dust collector bags may have certain limitations in terms of filtration efficiency and durability, especially when handling high-temperature, high-humidity, or corrosive gases, where the performance of traditional materials may not meet the requirements. Basalt fiber, as a novel inorganic fiber material, possesses excellent properties such as high-temperature resistance, corrosion resistance, and high strength, but its application in the field of dust collector bags may not be widespread or may face technical bottlenecks. Therefore, this utility model aims to develop a novel basalt fiber dust collector bag by introducing basalt fiber and combining it with a multi-layer composite filtration structure to address the shortcomings of traditional dust collector bags under specific working conditions. Utility Model Content

[0003] The purpose of this utility model is to provide a new type of basalt fiber dust collector bag to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a novel basalt fiber dust collector bag, comprising a filter bag body, wherein a filter cavity is provided inside the filter bag body, the filter bag body includes a base fabric, a basalt fiber filter layer is fixedly connected to the inner wall of the base fabric, a support layer is fixedly connected to the inner wall of the basalt fiber filter layer, a nylon filter layer is provided on the inner wall of the support layer, a support cavity is provided between the support layer and the nylon filter layer, a plurality of support columns are evenly arranged on the inner wall of the support cavity, a polypropylene filter layer is fixedly connected to the inner wall of the nylon filter layer, and a polyester filter layer is fixedly connected to the inner wall of the polypropylene filter layer.

[0005] As a further embodiment of this utility model, a bottom support plate is fixedly connected to the bottom of the supporting cavity.

[0006] As a further improvement of this utility model, the filter cavity is opened through the top.

[0007] As a further improvement of this utility model: a top connecting ring is fixedly connected to the top of the filter bag body, and a through groove is provided on the inner wall of the top connecting ring.

[0008] As a further improvement of this utility model: the through groove is opened vertically, and the bottom of the through groove is connected to the top of the filter cavity.

[0009] As a further embodiment of this utility model: a connecting flange is fixedly connected to the outer wall of the top end of the top connecting ring, and a rubber sealing ring is fixedly connected to the top of the top connecting ring.

[0010] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model, through a multi-layer composite filtration structure (including a basalt fiber filter layer, a nylon filter layer, a polypropylene filter layer, and a polyester filter layer), can effectively intercept dust particles of different sizes, improving overall filtration efficiency. The introduction of basalt fiber significantly improves the high-temperature resistance and corrosion resistance of the dust collector bag, enabling it to operate stably for a long time under harsh working conditions and extending its service life. The design of the support layer and support cavity, as well as the setting of the support columns, effectively enhance the structural strength of the dust collector bag, preventing deformation or damage under high pressure differentials. The design of the top connecting ring, connecting flange, and rubber sealing ring makes the installation of the dust collector bag simpler and faster, while ensuring good sealing performance and preventing gas leakage. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of a novel basalt fiber dust collector bag according to this utility model;

[0012] Figure 2 This utility model relates to a novel basalt fiber dust collector bag. Figure 1 Enlarged structural diagram at point A;

[0013] Figure 3 This is an enlarged cross-sectional view of the filter bag body in a novel basalt fiber dust collector bag according to this utility model.

[0014] Figure 4 This utility model relates to a novel basalt fiber dust collector bag. Figure 3 Enlarged schematic diagram of the structure at point B.

[0015] In the diagram: 1. Filter bag body; 11. Base fabric; 12. Basalt fiber filter layer; 13. Support layer; 14. Support cavity; 15. Support column; 16. Nylon filter layer; 17. Polypropylene filter layer; 18. Polyester filter layer; 2. Top connecting ring; 3. Connecting flange; 4. Filter cavity; 5. Through groove; 6. Rubber sealing ring; 7. Bottom support plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0018] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Please see Figures 1-4 In the embodiments of this utility model, Embodiment 1:

[0021] A novel basalt fiber dust collector bag includes a filter bag body 1, with a filter cavity 4 inside the filter bag body 1. The filter bag body 1 is composed of multiple layers: a base fabric 11, a basalt fiber filter layer 12, a support layer 13, a nylon filter layer 16, a polypropylene filter layer 17, and a polyester filter layer 18. A support cavity 14 is formed between the support layer 13 and the nylon filter layer 16, and multiple support columns 15 are evenly arranged within the support cavity 14.

[0022] A top connecting ring 2 is fixedly connected to the top of the filter bag body 1. A connecting flange 3 is fixedly connected to the outer wall of the top of the top of the top connecting ring 2 for connection with the corresponding interface of the dust removal equipment. A rubber sealing ring 6 is also fixedly connected to the top of the top connecting ring 2 to ensure the sealing of the connection.

[0023] This dust collector bag is suitable for filtering high-temperature, high-humidity, or corrosive gases, such as industrial dust removal systems in cement plants, steel plants, and waste incineration plants.

[0024] Example 2:

[0025] Based on Embodiment 1, a bottom support plate 7 is fixedly connected to the bottom of the supporting cavity 14, which further enhances the structural strength of the bottom of the dust collector bag and prevents it from deforming under gravity.

[0026] This specially designed dust collector bag is particularly suitable for dust collection systems that need to withstand large pressure differences, such as flue gas dust removal in large industrial boilers, ensuring stable filtration performance even under high pressure differentials.

[0027] The working principle of this utility model is as follows:

[0028] Filtration process: Dust-laden gas enters the outside of the dust collector bag through the air inlet of the dust collector. The dust particles in the gas are sequentially intercepted by the basalt fiber filter layer 12, nylon filter layer 16, polypropylene filter layer 17 and polyester filter layer 18. The clean gas is discharged from the dust collector through the filter inner cavity 4 and the through groove 5 of the top connecting ring 2.

[0029] Structural support: During the filtration process, the support layer 13 and the support columns 15 within the support cavity 14 together provide structural support for the dust collector bag, preventing it from deforming or breaking under high pressure differential. The bottom support plate 7 further enhances the structural strength of the bottom of the dust collector bag.

[0030] Sealing performance: The rubber sealing ring 6 on the top connecting ring 2 ensures the sealing of the connection between the dust collector bag and the dust collection equipment, prevents gas leakage, and ensures dust collection efficiency.

[0031] Dust removal and regeneration: When the dust on the surface of the dust collector bag accumulates to a certain level, it is cleaned by pulse jet cleaning or other methods, so that the dust falls off the surface of the dust collector bag and into the dust hopper, thus realizing the regeneration and reuse of the dust collector bag.

[0032] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0033] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A new type of basalt fiber dedusting cloth bag, comprising a filter bag body (1), characterized in that: The filter bag body (1) has a filter cavity (4) inside. The filter bag body (1) includes a base fabric (11). A basalt fiber filter layer (12) is fixedly connected to the inner wall of the base fabric (11). A support layer (13) is fixedly connected to the inner wall of the basalt fiber filter layer (12). A nylon filter layer (16) is provided on the inner wall of the support layer (13). A support cavity (14) is provided between the support layer (13) and the nylon filter layer (16). A plurality of support columns (15) are evenly arranged on the inner wall of the support cavity (14). A polypropylene filter layer (17) is fixedly connected to the inner wall of the nylon filter layer (16). A polyester filter layer (18) is fixedly connected to the inner wall of the polypropylene filter layer (17).

2. A novel basalt fiber dedusting cloth bag according to claim 1, characterized in that: The bottom of the supporting cavity (14) is fixedly connected to a bottom support plate (7).

3. A novel basalt fiber dedusting cloth bag according to claim 1, characterized in that: The filter cavity (4) is opened through the top.

4. The novel basalt fiber dust collector bag according to claim 1, characterized in that: The top of the filter bag body (1) is fixedly connected to a top connecting ring (2), and the inner wall of the top connecting ring (2) is provided with a through groove (5).

5. A novel basalt fiber dust collector bag according to claim 4, characterized in that: The through groove (5) is opened vertically, and the bottom of the through groove (5) is connected to the top of the filter cavity (4).

6. A novel basalt fiber dust collector bag according to claim 4, characterized in that: A connecting flange (3) is fixedly connected to the outer wall of the top end of the top connecting ring (2), and a rubber sealing ring (6) is fixedly connected to the top of the top connecting ring (2).