Inorganic fiber felt
By using a multi-layer inorganic fiber felt structure, the problem of insufficient durability of existing filter media in high-temperature and corrosive environments is solved, achieving high-efficiency filtration and improved durability, making it suitable for various industrial environments.
Patent Information
- Application Number
- CN202520572876.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-29
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2035-03-29
AI Technical Summary
Existing filter media have limited tolerance and service life in high-temperature, corrosive gas or liquid environments, making it difficult to meet the requirements of high-precision filtration and durability.
The inorganic fiber felt adopts a multi-layer structure, including a surface treatment layer, a functional layer, a reinforcement layer, a support layer, a temperature control protection layer, and a recyclable layer, which are respectively composed of fluorocarbon compounds, metal oxide fibers, high-modulus glass fibers, ceramic fibers, and recycled glass fibers. The interlayer cooperation achieves high-efficiency filtration, stability, and durability.
It improves the filtration performance and durability of filter bags, reduces replacement frequency, adapts to a wider range of temperature conditions and industrial environments, and reduces maintenance costs.
Smart Images

Figure CN223945229U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to filter felt technical field, concretely relates to an inorganic fiber felt. BACKGROUND
[0002] In the field of flue gas dust removal, due to high ambient temperature, complex composition and strong corrosion, the filtration precision and use of filter felt are required to be high. With the further improvement of environmental protection standards, especially for the steel, electric power, cement, garbage incineration and other industries with serious pollution, the emission concentration of dust is required to be lower and lower. The dust removal mode has changed from electric dust removal to bag type dust removal, and the bag type dust removal has many advantages such as high filtration precision, low equipment running resistance, and the like, and the filter bag, the core component of the bag type dust removal device, is required to be higher.
[0003] The filter material in the prior art often uses organic fiber or synthetic fiber, but in the environment of high temperature, corrosive gas or liquid, the tolerance and service life of these materials are limited.
[0004] Therefore, an inorganic fiber felt is provided. CONTENT OF THE UTILITY MODEL
[0005] The utility model discloses the purpose at: for solving the problem mentioned in the background art, the utility model provides an inorganic fiber felt.
[0006] The utility model discloses the following technical scheme in order to realize the above-mentioned purpose:
[0007] An inorganic fiber felt, comprising a surface treatment layer, the surface of the surface treatment layer is fixedly connected with a functional layer, the surface of the functional layer is fixedly connected with an enhanced layer, the surface of the enhanced layer is fixedly connected with a basic filtration layer, the surface of the basic filtration layer is fixedly connected with a support layer, the surface of the support layer is fixedly connected with a temperature control protection layer, and the surface of the temperature control protection layer is fixedly connected with a recyclable layer.
[0008] Further, the surface treatment layer is a fluorocarbon compound, the functional layer is a metal oxide fiber, and the basic filtration layer is made of different diameter inorganic fibers.
[0009] Further, the enhanced layer is a high modulus glass fiber, and the support layer is a three-dimensional woven glass fiber net.
[0010] Further, the temperature control protection layer is composed of ceramic fiber and phase change material.
[0011] Further, the recyclable layer is a regenerated glass fiber.
[0012] Further, the end of the surface treatment layer is fixedly connected with an edge protection layer, and the edge protection layer is fixedly connected with the functional layer, the reinforcing layer, the basic filter layer, the supporting layer, the temperature control protection layer and the recyclable layer, and the edge protection layer is a polytetrafluoroethylene adhesive.
[0013] The utility model discloses the beneficial effect is as follows:
[0014] After being made into a filter bag, the surface treatment layer, the functional layer and the basic filter layer can cooperate to effectively filter the multi-diameter and multi-type particle impurities, the reinforcing layer and the supporting layer can cooperate to guarantee the stability and durability of the filter bag as a whole, the temperature control protection layer can provide temperature buffering to protect the filter bag from damage caused by extreme temperature changes, and the recyclable layer can facilitate the recycling and reuse of the filter bag, thereby achieving the effect of improving the filtering performance of the filter bag, effectively improving the durability of the filter bag, reducing the replacement frequency, and making the filter bag more adaptable to a wider range of temperature conditions and industrial environments. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 is the structural section view of the utility model;
[0016] Fig. 2 is the three-dimensional structural schematic view of the utility model;
[0017] Reference signs: 1, surface treatment layer; 2, functional layer; 3, reinforcing layer; 4, basic filter layer; 5, supporting layer; 6, temperature control protection layer; 7, recyclable layer; 8, edge protection layer. DETAILED DESCRIPTION
[0018] To make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.
[0019] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.
[0020] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0021] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. 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.
[0022] like Figs. 1-2 As shown, an inorganic fiber felt includes a surface treatment layer 1, a functional layer 2 fixedly connected to the surface of the surface treatment layer 1, a reinforcing layer 3 fixedly connected to the surface of the functional layer 2, a basic filter layer 4 fixedly connected to the surface of the reinforcing layer 3, a support layer 5 fixedly connected to the surface of the basic filter layer 4, a temperature control protection layer 6 fixedly connected to the surface of the support layer 5, and a recyclable layer 7 fixedly connected to the surface of the temperature control protection layer 6. More specifically, after being made into a filter bag, the surface treatment layer 1, the functional layer 2, and the basic filter layer 4 work together to effectively filter particulate impurities of various diameters and types. The reinforcing layer 3 and the support layer 5 work together to ensure the overall stability and durability of the filter bag. The temperature control protection layer 6 provides a temperature buffer, protecting the filter bag from damage caused by extreme temperature changes. The recyclable layer 7 facilitates the recycling and reuse of the filter bag. In use, this design facilitates improved filtration performance, effectively enhances the durability of the filter bag, reduces replacement frequency, and allows the filter bag to adapt to a wider range of temperature conditions and industrial environments.
[0023] The surface treatment layer 1 is made of fluorocarbon compound, the functional layer 2 is made of metal oxide fiber, and the basic filter layer 4 is made of interwoven inorganic fibers of different diameters. It should be noted that by incorporating nanoscale fluorocarbon compounds, the adhesion of particulate matter and liquid in the flue gas is reduced, lowering the frequency of filter bag cleaning and maintenance costs. Depending on the flue gas composition, the functional layer 2 can also be made of modified glass fiber or ceramic fiber, providing adsorption, catalytic conversion, or chemical reaction for specific pollutants, enhancing the chemical filtration capacity of the filter bag. The basic filter layer 4, composed of multiple layers of fibers of different diameters, achieves efficient interception of particles of different sizes, improving filtration efficiency. The combined effect of the surface treatment layer 1, functional layer 2, and basic filter layer 4 achieves the desired filtration performance of the fiber felt.
[0024] The reinforcing layer 3 is high modulus glass fiber, and the supporting layer 5 is a three-dimensional woven glass fiber net.
[0025] The temperature control protection layer 6 is composed of ceramic fiber and phase change material.
[0026] The recyclable layer 7 is regenerated glass fiber.
[0027] The edge protection layer 8 is fixedly connected to the end of the surface treatment layer 1, and the edge protection layer 8 is fixedly connected with the functional layer 2, the reinforcing layer 3, the basic filter layer 4, the supporting layer 5, the temperature control protection layer 6 and the recyclable layer 7.
[0028] In summary, after being made into a filter bag, the surface treatment layer 1, the functional layer 2 and the basic filter layer 4 can cooperate to effectively filter and treat multi-diameter and multi-type particle impurities, the reinforcing layer 3 and the supporting layer 5 can guarantee the stability and durability of the filter bag as a whole, the temperature control protection layer 6 can provide temperature buffering to protect the filter bag from damage caused by extreme temperature changes, and the recyclable layer 7 can facilitate recycling and reuse of the filter bag.
[0029] The basic principle, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.
Claims
1. An inorganic fiber mat characterized by, The application relates to a filter, which comprises a surface treatment layer (1), the surface of the surface treatment layer (1) is fixedly connected with a functional layer (2), the surface of the functional layer (2) is fixedly connected with a reinforcing layer (3), the surface of the reinforcing layer (3) is fixedly connected with a basic filter layer (4), the surface of the basic filter layer (4) is fixedly connected with a support layer (5), the surface of the support layer (5) is fixedly connected with a temperature control protection layer (6), and the surface of the temperature control protection layer (6) is fixedly connected with a recyclable layer (7).
2. An inorganic fiber mat according to claim 1, wherein The surface treatment layer (1) is a fluorocarbon compound, the functional layer (2) is a metal oxide fiber, and the basic filter layer (4) is made of inorganic fibers of different diameters.
3. An inorganic fiber mat according to claim 1, wherein The reinforcing layer (3) is a high modulus glass fiber, and the support layer (5) is a three-dimensionally woven glass fiber net.
4. An inorganic fiber mat according to claim 1, wherein The temperature control protection layer (6) is composed of ceramic fibers and a phase change material.
5. An inorganic fiber mat according to claim 1, wherein The recyclable layer (7) is a regenerated glass fiber.
6. An inorganic fiber mat according to claim 1, wherein The end of the surface treatment layer (1) is fixedly connected with an edge protection layer (8), and the edge protection layer (8) is fixedly connected with the functional layer (2), the reinforcing layer (3), the basic filter layer (4), the support layer (5), the temperature control protection layer (6) and the recyclable layer (7), and the edge protection layer (8) is a polytetrafluoroethylene adhesive.