Modified pps dust removal filter bag

By setting a polyetheretherketone material layer on the inner wall of the modified PPS filter bag and coating a polytetrafluoroethylene layer on the outer surface, and combining it with a drying mechanism, the problems of easy degradation of the modified PPS filter bag in alkaline environment and condensation under high temperature and high humidity are solved. This improves the alkali resistance and anti-condensation performance of the filter bag, extends its service life and improves the filtration efficiency.

CN223901447UActive Publication Date: 2026-02-13FUSHUN TIANCHENG ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202520476205.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-02-13
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

Modified PPS filter bags are prone to degradation in alkaline environments and condensation under high temperature and humidity conditions, which affects their service life and filtration efficiency.

Method used

It adopts a multi-layer structure design, including a polyether ether ketone material layer on the inner wall of modified PPS material and a polytetrafluoroethylene coating on the outer surface, combined with a drying mechanism to control humidity and enhance alkali resistance and anti-condensation performance.

Benefits of technology

It significantly improves the alkali resistance and anti-condensation performance of filter bags, extends their service life, and ensures the efficient and stable operation of the dust removal system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a modified pps dust removal filter bag, which belongs to the technical field of industrial filter materials and comprises a shell, a ventilation hopper is fixedly mounted on one side of the shell, and a positioning plate is fixedly mounted at the bottom of the shell. According to the utility model, the polyether-ether-ketone material layer is arranged on the inner wall of the modified pps material, so that the direct contact between alkaline gas and the modified pps material can be effectively isolated, the modified pps material is protected from being eroded by an alkaline environment by utilizing the excellent alkali resistance of polyether-ether-ketone, and the epoxy resin coating is coated on the polyether-ether-ketone material layer on the inner wall, so that the service life of the modified pps material is prolonged. Meanwhile, an additional protective layer is provided, and the modified pps material on the outer surface is coated with the polytetrafluoroethylene coating, so that the chemical corrosion resistance of the filter bag body is improved, the anti-condensation performance of the filter bag body is enhanced, the polytetrafluoroethylene coating has excellent hydrophobicity and oleophobicity, and the anti-condensation performance of the filter bag body is improved. The influence of water and oil stains on the filter bag can be reduced.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of industrial filter material, especially relates to a modified pps dust removal filter bag. BACKGROUND

[0002] Modified pps (polyphenylene sulfide) dust removal filter bag is a kind of high-performance filter material, is widely used in industrial dust removal field, especially in high temperature, high corrosive gas environment, pps material itself has excellent heat resistance, chemical corrosion resistance and good mechanical strength, but by modification treatment, can further enhance its high-temperature performance, antioxidant capacity and dew resistance, make it more suitable for use in extreme working conditions.

[0003] At present, modified pps has good acid resistance and high-temperature resistance, but its alkali resistance is relatively weak, and it is easy to degrade in alkaline environment, which affects the service life of the filter bag, and in high-temperature and high-humidity environment, modified pps filter bag may encounter dewing problem, dewing will cause the surface of filter bag to be wet, affect the filtering efficiency, and even cause the physical properties of filter bag to decrease. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of modified pps dust removal filter bag, to solve the problems presented in the above background technique.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A kind of modified pps dust removal filter bag, including shell, the side fixed mounting of the shell has ventilation shaft, the bottom fixed mounting of the shell has locating plate, further include: the

[0007] Filter bag body, the filter bag body is arranged at the bottom of the locating plate;

[0008] Drying mechanism, the drying mechanism is located at the other side of the shell.

[0009] As a preferred scheme of the utility model, the filter bag body includes modified pps material, polyether ether ketone material layer, epoxy resin coating and polytetrafluoroethylene coating, the polyether ether ketone material layer is arranged to the inner wall of the modified pps material, the epoxy resin coating is coated in the inner wall of the polyether ether ketone material layer, and the polytetrafluoroethylene coating is coated on the outer surface of the modified pps material.

[0010] As a preferred scheme of the utility model, the drying mechanism includes dryer, heat delivery pipeline, exhaust pipe head, fixed head, temperature sensor and exhaust pipeline, the dryer is arranged at the top of the drying mechanism, the fixed head is fixedly installed at the top of the dryer, one end of the heat delivery pipeline is fixedly connected with one end of the fixed head, and is communicated with each other, the exhaust pipe head is four in number, and is evenly distributed at the bottom of the heat delivery pipeline, the temperature sensor is fixedly installed at one side of the dryer, the exhaust pipeline is fixedly installed at the bottom of the dryer, and is fixedly connected with the top of the drying mechanism.

[0011] As a preferred scheme of the utility model, the top of the positioning plate is evenly provided with through holes, the bottom of the through hole is provided with a support, and the filter bag body is sleeved on the outer surface of the support from bottom to top.

[0012] As a preferred scheme of the utility model, the bottom of the support is provided with a positioning ring, and the bottom of the positioning ring is fixedly provided with an exhaust pipe head.

[0013] As a preferred scheme of the utility model, one side of the ventilation shaft is fixedly provided with a connecting pipe, and the tail end of the connecting pipe is fixedly provided with a conveying pipeline.

[0014] As a preferred scheme of the utility model, the heat delivery pipeline penetrates one side of the shell, and reaches the inner cavity of the shell, and the heat delivery pipeline is located at the top of the positioning plate.

[0015] The utility model has the advantages of:

[0016] By setting the polyether ether ketone material layer on the inner wall of the modified pps material, the direct contact of the alkaline gas on the modified pps material can be effectively isolated, the excellent alkali resistance of the polyether ether ketone is utilized, the modified pps material is protected from the erosion of the alkaline environment, the epoxy resin coating is coated on the polyether ether ketone material layer of the inner wall, the alkali resistance and chemical stability of the filter bag are further enhanced, an additional protective layer is provided, the polytetrafluoroethylene coating is coated on the outer surface of the modified pps material, not only the chemical corrosion resistance of the filter bag body is improved, but also the anti-condensation performance is enhanced, the polytetrafluoroethylene coating has excellent hydrophobicity and oleophobicity, the influence of moisture and oil dirt on the filter bag can be reduced, in addition, the setting of the drying mechanism helps to control the humidity in the shell, reduces the occurrence of condensation, and further improves the anti-condensation performance and overall filtering efficiency of the filter bag, the combination of the multilayer structure and the coating technology significantly improves the alkali resistance and anti-condensation performance of the filter bag body, prolongs the service life of the filter bag body, and ensures the efficient and stable operation of the dust removal system. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the premise of not deviating from the connotation of the present application.

[0018] Figure 1 is a schematic diagram of the overall structure provided by the embodiments of the present application;

[0019] Figure 2 is a schematic diagram of the drying mechanism structure provided by the embodiments of the present application;

[0020] Figure 3 is a schematic diagram of the drying mechanism structure provided by the embodiments of the present application;

[0021] Figure 4 is a partial sectional view of the filter bag body structure provided by the embodiments of the present application;

[0022] Figure 5 is a planar sectional view of the filter bag body structure provided by the embodiments of the present application.

[0023] In the figure: 1, shell; 2, positioning plate; 3, filter bag body; 301, modified pps material; 302, polyether ether ketone material layer; 303, epoxy resin coating; 304, polytetrafluoroethylene coating; 4, ventilation hopper; 5, connecting pipe; 6, conveying pipeline; 7, drying mechanism; 701, dryer; 702, heat supply pipeline; 703, exhaust pipe head; 704, fixing head; 705, temperature sensor; 706, exhaust pipeline; 8, through hole; 9, support; 10, positioning ring; 11, discharge pipe head. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0025] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without deviating from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] Example 1

[0028] like Figures 1-5 As shown, this is the first embodiment of the present invention. This embodiment provides a modified PPS dust collector filter bag, including a shell 1, a ventilation duct 4 fixedly installed on one side of the shell 1, a positioning plate 2 fixedly installed on the bottom of the shell 1, and further including:

[0029] The filter bag body 3 is located at the bottom of the positioning plate 2;

[0030] Drying mechanism 7 is located on the other side of housing 1.

[0031] like Figures 1-5 As shown, by providing a polyetheretherketone (PEEK) material layer 302 on the inner wall of the modified PPS material 301, direct contact between alkaline gases and the modified PPS material 301 can be effectively isolated. Utilizing the excellent alkali resistance of PEEK, the modified PPS material 301 is protected from erosion by the alkaline environment. Coating the PEEK material layer 302 on the inner wall with an epoxy resin coating 303 further enhances the alkali resistance and chemical stability of the filter bag body 3, while providing an additional protective layer. Coating the modified PPS material 301 on the outer surface with a polytetrafluoroethylene (PTFE) coating 304 not only improves... The chemical corrosion resistance of the filter bag body 3 is improved, and its anti-condensation performance is also enhanced. The polytetrafluoroethylene coating 304 has excellent hydrophobicity and oleophobicity, which can reduce the impact of moisture and oil on the filter bag body 3. In addition, the setting of the drying mechanism 7 helps to control the humidity inside the housing 1 and reduce the occurrence of condensation, thereby further improving the anti-condensation performance and overall filtration efficiency of the filter bag body 3. The combination of multi-layer structure and coating technology significantly improves the alkali resistance and anti-condensation performance of the filter bag body 3, extends the service life of the filter bag body 3, and ensures the efficient and stable operation of the dust removal system.

[0032] Example 2

[0033] Reference Figure 2 , Figure 4 and Figure 5 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0034] In this embodiment, the filter bag body 3 comprises a modified pps material 301, a polyether ether ketone material layer 302, an epoxy resin coating 303 and a polytetrafluoroethylene coating 304, the polyether ether ketone material layer 302 is arranged on the inner wall of the modified pps material 301, the epoxy resin coating 303 is coated on the inner wall of the polyether ether ketone material layer 302, and the polytetrafluoroethylene coating 304 is coated on the outer surface of the modified pps material 301; the top of the positioning plate 2 is uniformly distributed with through holes 8, the bottom of the through holes 8 is clamped with a support 9, the filter bag body 3 is sleeved on the outer surface of the support 9 from bottom to top, the bottom of the support 9 is clamped with a positioning ring 10, and the bottom of the positioning ring 10 is fixedly installed with a discharge pipe head 11.

[0035] As shown in Figure 2 , Figure 4 and Figure 5 , by arranging the polyether ether ketone material layer 302 on the inner wall of the modified pps material 301, the excellent alkali resistance of the polyether ether ketone material layer 302 is utilized to effectively isolate and protect the modified pps material 301 from the erosion of alkaline gas, the epoxy resin coating 303 is further coated on the inner wall of the polyether ether ketone material layer 302, the chemical stability and alkali resistance of the filter bag body 3 are enhanced, and double protection is provided, at the same time, the polytetrafluoroethylene coating 304 is coated on the outer surface of the modified pps material 301, not only the chemical corrosion resistance of the filter bag body 3 is improved, but also the anti-condensation performance of the filter bag body 3 is significantly enhanced due to the excellent hydrophobicity and oleophobicity of the polytetrafluoroethylene coating 304, the influence of moisture and oil stains on the filter bag body 3 is reduced, the multi-layer protection design of the inside and outside ensures the long-term stable operation of the filter bag body 3 in harsh environments, improves the filtering efficiency, and prolongs the service life of the filter bag body 3.

[0036] Embodiment 3

[0037] Referring to Figure 1 , Figure 2 and Figure 3 , this is the third embodiment of the utility model, and the embodiment is based on the previous two embodiments.

[0038] In this embodiment, the drying mechanism 7 includes a dryer 701, a heat delivery pipe 702, four exhaust pipe heads 703, a fixed head 704, a temperature sensor 705, and an exhaust pipe 706. The dryer 701 is arranged at the top of the drying mechanism 7, and the fixed head 704 is fixedly installed at the top of the dryer 701. One end of the heat delivery pipe 702 is fixedly connected with one end of the fixed head 704, and they are in communication with each other. The four exhaust pipe heads 703 are evenly distributed at the bottom of the heat delivery pipe 702. The temperature sensor 705 is fixedly installed on one side of the dryer 701. The exhaust pipe 706 is fixedly installed at the bottom of the dryer 701 and is fixedly connected with the top of the drying mechanism 7. One side of the ventilation duct 4 is fixedly installed with a connecting pipe 5, and the end of the connecting pipe 5 is fixedly installed with a conveying pipe 6. The heat delivery pipe 702 penetrates through one side of the shell 1 and extends to the inner cavity of the shell 1, and is located at the top of the positioning plate 2.

[0039] As shown in Figure 1 , Figure 2 and Figure 3 , the dryer 701 delivers heat sources to the inside of the shell 1 through the heat delivery pipe 702, effectively reducing the humidity inside the shell 1 and reducing the occurrence of dew, thereby improving the anti-dew performance of the filter bag body 3. The four evenly distributed exhaust pipe heads 703 ensure the uniform distribution of hot air and efficient exhaust of moisture, enhancing the drying effect. The installation of the temperature sensor 705 enables the dryer 701 to monitor the temperature inside the shell 1 in real time, achieving precise temperature control and avoiding damage to the filter bag body 3 caused by excessively high or low temperature. The design of the fixed head 704 and the exhaust pipe 706 ensures the stable connection between the dryer 701 and the heat delivery pipe 702 and the smooth exhaust of air flow. The drying mechanism 7 provides a more stable and suitable working environment for the filter bag body 3 through precise temperature and humidity control, which helps to maintain the high filtration performance of the filter bag body 3 and prolong its service life.

[0040] In summary: The combination of multi-layer structure and coating technology significantly improves the alkali resistance and anti-dew performance of the filter bag body 3, prolongs the service life of the filter bag body 3, and ensures the efficient and stable operation of the dust removal system. In addition, the setting of the drying mechanism 7 helps to control the humidity inside the shell 1 and reduce the occurrence of dew, thereby further improving the anti-dew performance and overall filtration efficiency of the filter bag body 3.

[0041] It is important to note that the construction and arrangements of the application shown in the various exemplary embodiments are illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications can be made to the embodiments without departing from the novel teachings and advantages of the subject matter described herein (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, locations, and the like). For example, the elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be modified or changed. Thus, all such modifications are intended to be included within the scope of the present inventive subject matter. The order or sequence of any process or method steps can be varied or re-sequenced without departing from the subject matter described herein. Any "open / closed" claims are intended to encompass the structure described herein, and not just the structure equivalent, but also the equivalent structure. Other substitutions, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventive subject matter. Accordingly, the present inventive subject matter is not limited to particular embodiments described, but extends to various modifications that nevertheless fall within the scope of the appended claims.

[0042] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of an actual implementation can be described (i.e., those not pertinent to the best mode for carrying out the present inventive subject matter, or those that are self-explanatory).

[0043] It is understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts can inevitably lead to modifications of the software, hardware and firmware

[0044] It should be noted that the above-mentioned embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalent replaced without departing from the spirit and scope of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A modified PPS dust filtration bag, characterized by: Including the shell (1), one side of the shell (1) is fixedly installed with a ventilation funnel (4), the bottom of the shell (1) is fixedly installed with a positioning plate (2), further comprising: The filter bag body (3) is arranged at the bottom of the positioning plate (2). The drying mechanism (7) is located on the other side of the shell (1).

2. The modified PPS dust filtration bag of claim 1, wherein: The filter bag body (3) comprises a modified pps material (301), a polyether ether ketone material layer (302), an epoxy resin coating (303) and a polytetrafluoroethylene coating (304), the polyether ether ketone material layer (302) is arranged on the inner wall of the modified pps material (301), the epoxy resin coating (303) is coated on the inner wall of the polyether ether ketone material layer (302), and the polytetrafluoroethylene coating (304) is coated on the outer surface of the modified pps material (301).

3. The modified PPS dust filtration bag of claim 1, wherein: The drying mechanism (7) comprises a dryer (701), a heat supply pipeline (702), an exhaust pipe head (703), a fixed head (704), a temperature sensor (705) and an exhaust pipeline (706), the dryer (701) is arranged at the top of the drying mechanism (7), the fixed head (704) is fixedly installed at the top of the dryer (701), one end of the heat supply pipeline (702) is fixedly connected with one end of the fixed head (704) and communicates with each other, the exhaust pipe head (703) is four in number and is uniformly distributed at the bottom of the heat supply pipeline (702), the temperature sensor (705) is fixedly installed on one side of the dryer (701), and the exhaust pipeline (706) is fixedly installed at the bottom of the dryer (701) and is fixedly connected with the top of the drying mechanism (7).

4. The modified PPS dust filtration bag of claim 1, wherein: The top of the positioning plate (2) is uniformly provided with through holes (8), the bottom of the through hole (8) is clamped and installed with a support (9), and the filter bag body (3) is sleeved on the outer surface of the support (9) from bottom to top.

5. The modified PPS dust filtration bag of claim 4, wherein: The bottom of the support (9) is clamped and installed with a positioning ring (10), and the bottom of the positioning ring (10) is fixedly installed with an exhaust pipe head (11).

6. The modified PPS dust filtration bag of claim 1, wherein: One side of the ventilation funnel (4) is fixedly installed with a connecting pipe (5), and the tail end of the connecting pipe (5) is fixedly installed with a conveying pipeline (6).

7. The modified PPS dust filtration bag of claim 3, wherein: The heat supply pipeline (702) penetrates one side of the shell (1) and reaches the inner cavity of the shell (1), and the heat supply pipeline (702) is located at the top of the positioning plate (2). The heat supply pipeline (702) penetrates one side of the shell (1) and reaches the inner cavity of the shell (1), and the heat supply pipeline (702) is located at the top of the positioning plate (2).