Modified PPS composite acid-resistant needled felt

Abstract

The utility model belongs to the technical field of needled felt, and discloses a modified PPS composite acid-resistant needled felt which comprises a needled felt body, a plurality of conductive copper wires are installed inside the needled felt body, the conductive copper wires alternately penetrate through the upper end face and the lower end face of the needled felt body, a covered edge is installed on the peripheral side of the needled felt body, a connecting wire is installed inside the covered edge, and the connecting wire is connected with the conductive copper wires. The connecting wires alternately penetrate through the covered edges and the upper end face and the lower end face of the needled felt body, a reinforcing layer is arranged on the surface of the needled felt body, and a heat-resisting layer is arranged on the surface of the reinforcing layer. By means of the device, the edges of the needled felt body can be well attached together, the situation that in the long-term using process of the needled felt body, the edges are curled due to high temperature and pulling, and consequently the filtering effect is affected is prevented, meanwhile, a large amount of water can be prevented from being accumulated on the surface of the needled felt body, the service life is prolonged, and the maintenance frequency is reduced; and by using the conductive metal copper wire, the use effect is improved, and meanwhile, the safety level in the use process is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of needle punched felt, and more specifically, particularly relates to a modified PPS composite acid-resistant needle punched felt. Background Art

[0002] Modified PPS composite acid-resistant needle felt is a material used for industrial filtration, usually used for dust removal and gas purification of high-temperature flue gas. It is composed of polyphenylene sulfide (modified PPS) fiber and other auxiliary materials (such as needle felt base cloth). Modified PPS is a high-performance synthetic fiber with high temperature resistance, chemical corrosion resistance, wear resistance and other characteristics, so it is suitable for demanding industrial filtration environments.

[0003] When needle felt is used as a filter component of a flue gas system, the temperature of the needle felt will rise along with the temperature of the flue gas, and the flue gas will push the needle felt to swing back and forth during its flow, causing the needle felt to be pulled and curled, which in turn causes the filter layer at the curled edge to separate, affecting the filtering effect and causing unfiltered flue gas to seep out from the curled edge, affecting the use of the needle felt. In addition, during the use of the needle felt, moisture adheres to the surface of the needle felt, which can easily cause dust in the flue gas to adhere to the surface of the needle felt along with the moisture, thereby increasing the frequency of cleaning and replacement.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a modified PPS composite acid-resistant needle felt is provided, in order to achieve a more practical purpose. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a modified PPS composite acid-resistant needle felt, which is achieved by the following specific technical means:

[0006] A modified PPS composite acid-resistant needle felt comprises a needle felt body, a plurality of conductive copper wires are installed inside the needle felt body, and the conductive copper wires alternately penetrate the upper end surface and the lower end surface of the needle felt body, a edging is installed on the peripheral side of the needle felt body, a connecting wire is installed inside the edging, and the connecting wire alternately penetrates the edging and the upper end surface and the lower end surface of the needle felt body, a reinforcing layer is provided on the surface of the reinforcing layer, a heat-resistant layer is provided on the surface of the heat-resistant layer, an adsorption layer is provided on the surface of the adsorption layer, a waterproof layer is provided on the surface of the waterproof layer, and an anti-adhesion layer is provided on the surface of the waterproof layer.

[0007] Furthermore, the reinforcement layer is made of glass fiber.

[0008] Furthermore, the heat-resistant layer is made of ceramic fiber.

[0009] Furthermore, the material of the adsorption layer is activated carbon.

[0010] Furthermore, the waterproof layer is made of polypropylene.

[0011] Furthermore, the anti-adhesion layer is made of polytetrafluoroethylene.

[0012] Furthermore, the needle-punched felt body and the edging are both made of modified PPS fibers.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The modified PPS composite acid-resistant needle felt in the utility model is used in combination with the needle felt body, the conductive copper wire, the edging, the connecting wire, the reinforcing layer, the heat-resistant layer, the adsorption layer, the waterproof layer and the anti-adhesion layer, so that the edges of the needle felt body can be well fitted together, and the needle felt body can be prevented from curling due to high temperature and pulling during long-term use, thereby affecting the filtering effect. At the same time, a large amount of moisture can be prevented from accumulating on the surface of the needle felt body, so that the dust in the smoke can be accumulated on the needle felt body, thereby extending the service life of the modified PPS composite acid-resistant needle felt, reducing the maintenance frequency of the needle felt body, and improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model.

[0016] Figure 2 It is a three-dimensional explosion schematic diagram of the utility model.

[0017] Figure 3 It is a cross-sectional schematic diagram of the internal material layer of the utility model.

[0018] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0019] 1. Needle felt body; 2. Conductive copper wire; 3. Edge binding; 4. Connecting wire; 5. Reinforcement layer; 6. Heat-resistant layer; 7. Adsorption layer; 8. Waterproof layer; 9. Anti-adhesion layer. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0021] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example:

[0024] As attached Figure 1 To Attachment Figure 3 As shown:

[0025] The utility model provides a modified PPS composite acid-resistant needle felt, comprising a needle felt body 1, a plurality of conductive copper wires 2 are installed inside the needle felt body 1, and the conductive copper wires 2 alternately penetrate the upper end surface and the lower end surface of the needle felt body 1, a rim 3 is installed on the peripheral side of the needle felt body 1, a connecting wire 4 is installed inside the rim 3, and the connecting wire 4 alternately penetrates the upper end surface and the lower end surface of the rim 3 and the needle felt body 1, a reinforcing layer 5 is provided on the surface of the needle felt body 1, a heat-resistant layer 6 is provided on the surface of the reinforcing layer 5, an adsorption layer 7 is provided on the surface of the heat-resistant layer 6, a waterproof layer 8 is provided on the surface of the adsorption layer 7, and an anti-adhesion layer 9 is provided on the surface of the waterproof layer 8.

[0026] Among them, the material of the reinforcement layer 5 is glass fiber. Glass fiber has high tensile strength and rigidity, can effectively enhance the strength and hardness of the substrate, improve the overall performance of the material, and glass fiber is a relatively lightweight material and will not significantly increase the weight of the overall component. In addition, glass fiber has good corrosion resistance to water, chemicals and most common environmental media, and can protect the substrate from corrosion and damage.

[0027] Among them, the material of the heat-resistant layer 6 is ceramic fiber. Ceramic fiber can work stably at extremely high temperatures and can usually withstand temperatures as high as 1000°C or even thousands of degrees Celsius, which makes it an ideal choice for protecting the substrate in high-temperature environments. Ceramic fiber has good stability to most chemicals and corrosive gases, is not easily susceptible to chemical corrosion, and can work stably in harsh chemical environments.

[0028] Among them, the material of the adsorption layer 7 is activated carbon, which has extremely strong adsorption capacity and can adsorb impurities in a variety of organic substances, gases and solutions. Its large number of micropores and surface area give it a high adsorption capacity and rate, and the activated carbon can be restored to its adsorption performance through regeneration treatment to reduce the cost of use. Regeneration methods include pyrolysis, steam regeneration, etc., which can effectively remove the adsorbed substances and reset the adsorption properties of the activated carbon. In addition, the activated carbon has good chemical stability, is not easy to react chemically with the adsorbed substances, can work stably under different environmental conditions, and is suitable for various adsorption applications.

[0029] Among them, the material of the waterproof layer 8 is polypropylene, which has good flexibility and ductility, can adapt to the deformation and expansion of the substrate, form a continuous and tight waterproof layer 8, and effectively prevent water penetration. In addition, polypropylene has good aging resistance and can maintain stable performance under the influence of long-term environmental conditions such as sunlight, oxygen, and humidity, thereby extending the service life of the waterproof layer 8.

[0030] Among them, the material of the anti-adhesion layer 9 is polytetrafluoroethylene. Polytetrafluoroethylene has excellent anti-adhesion properties and hardly adheres to other substances. Even substances with strong adhesion are difficult to adhere to its surface. Polytetrafluoroethylene has excellent chemical stability and can withstand erosion and corrosion from a variety of chemical substances. It is not easily affected by acids, alkalis, solvents and other substances and maintains stable anti-adhesion properties. In addition, polytetrafluoroethylene has high high temperature resistance and can maintain stable performance over a wide temperature range. It is not easy to soften, deform or decompose and is suitable for applications in high temperature environments.

[0031] The needle-punched felt body 1 and the edge 3 are both made of modified PPS fiber.

[0032] Working principle of this embodiment: when producing the modified PPS composite acid-resistant needle felt, the staff alternately penetrates the upper end face and the lower end face of the needle felt body 1 with the conductive copper wire 2, so that the conductive copper wire 2 can conduct the static electricity absorbed on the surface of the needle felt body 1 during use, and then sets the edge 3 on the edge of the needle felt body 1, and fixes the edge 3 to the needle felt body 1 through the connecting wire 4. The edge 3 can reduce the separation of the layers on the surface of the needle felt body 1 due to high temperature and pulling, and prevent smoke from escaping from the curling position or entering the needle felt body 1, thereby improving the use effect of the needle felt body 1. Among them, the reinforcing layer 5 on the surface of the needle felt body 1 can enhance the tensile strength and rigidity of the needle felt body 1. The heat-resistant layer 6 on the surface of the reinforcing layer 5 can improve the high-temperature resistance of the needle-punched felt body 1, so that it can still maintain a good use effect at a higher temperature. The adsorption layer 7 on the surface of the heat-resistant layer 6 can better absorb impurities in the gas and improve the filtering effect of the needle-punched felt body 1. The waterproof layer 8 on the surface of the adsorption layer 7 can isolate moisture and reduce the accumulation of moisture on the surface of the needle-punched felt body 1, thereby preventing particles in the smoke from adhering to the surface of the needle-punched felt through moisture. The anti-adhesion layer 9 on the surface of the waterproof layer 8 can reduce the accumulation of particles in the smoke on the surface of the needle-punched felt. In addition, glass fiber, ceramic fiber, polypropylene and polytetrafluoroethylene all have good corrosion resistance, so that the needle-punched felt body 1 still has good performance in a strong acidic environment.

[0033] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

Claims

1. A modified PPS composite acid-resistant needle felt, comprising a needle felt body (1), characterized in that: A plurality of conductive copper wires (2) are installed inside the needle felt body (1), and the conductive copper wires (2) alternately penetrate the upper end surface and the lower end surface of the needle felt body (1); a rim (3) is installed on the peripheral side of the needle felt body (1); a connecting wire (4) is installed inside the rim (3), and the connecting wire (4) alternately penetrates the rim (3) and the upper end surface and the lower end surface of the needle felt body (1); a reinforcing layer (5) is provided on the surface of the reinforcing layer (5); a heat-resistant layer (6) is provided on the surface of the heat-resistant layer (6); an adsorption layer (7) is provided on the surface of the adsorption layer (7); a waterproof layer (8) is provided on the surface of the waterproof layer (8); an anti-adhesion layer (9) is provided on the surface of the waterproof layer (8).

2. The modified PPS composite acid-resistant needle felt according to claim 1, characterized in that: The material of the reinforcement layer (5) is glass fiber.

3. The modified PPS composite acid-resistant needle felt according to claim 1, characterized in that: The material of the heat-resistant layer (6) is ceramic fiber.

4. The modified PPS composite acid-resistant needle felt according to claim 1, characterized in that: The material of the adsorption layer (7) is activated carbon.

5. The modified PPS composite acid-resistant needle felt according to claim 1, characterized in that: The waterproof layer (8) is made of polypropylene.

6. The modified PPS composite acid-resistant needle felt according to claim 1, characterized in that: The material of the anti-adhesion layer (9) is polytetrafluoroethylene.

7. The modified PPS composite acid-resistant needle felt according to claim 1, characterized in that: The needle-punched felt body (1) and the edging (3) are both made of modified PPS fibers.

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