High-temperature-resistant composite filter bag

Abstract

The utility model discloses a high-temperature resistant composite filter bag, which relates to the technical field of composite filter bags and comprises a filter bag inner bag and a protective component, the filter bag inner bag is of an integrated flexible structure, and the protective component is arranged on the surface of the filter bag inner bag. The protection assembly comprises a polypropylene protection layer, an aramid fiber protection layer, a film covering PPS protection layer, a nylon fiber protection layer and a polyester fiber protection layer, the polypropylene protection layer is arranged on the outer surface of the filter bag inner bag, and the outer surface of the polypropylene protection layer is connected with the aramid fiber protection layer. According to the high-temperature-resistant composite filter bag, the strength and performance of the device are enhanced through the protection assembly, the high-temperature-resistant composite filter bag is resistant to high temperature and corrosion and not prone to damage, the service life of the filter bag is prolonged, and the filter bag can be stably supported through a right fixing ring, a movable groove, a fixed shaft, a movable part, a left fixing ring, a fixed part and a telescopic supporting rod; and the supporting structure can be folded, so that the supporting structure is convenient to store.

Description

Technical Field

[0001] This utility model relates to the field of composite filter bag technology, specifically a high-temperature resistant composite filter bag. Background Technology

[0002] Composite filter bags are made by combining two or more different materials through a special process. They are commonly used in industrial filtration systems to cope with complex working environments. The main materials of composite filter bags include polyphenylene sulfide (PPS) and polytetrafluoroethylene (PTFE). These two materials each have unique properties, and by combining them, their respective advantages can be leveraged to improve the overall performance of the filter bag. Composite filter bags are widely used in chemical, steel, waste incineration, bio-fermentation, and pharmaceutical industries. However, current composite filter bags still have the following shortcomings:

[0003] For example, patent document CN213101240U discloses a composite PTFE filter bag. This composite PTFE filter bag incorporates an inner bag and an annular support within the inner cavity of the original filter bag body. Both the inner bag and the annular support are easily detachable. When there is a lot of dust adhering to the surface of the inner bag, it can be removed for cleaning. Compared with the original vibration or knocking method, the dust removal is more thorough and effectively avoids bag clogging. However, its performance is poor, and it does not have good high-temperature resistance, so it cannot be used in high-temperature environments.

[0004] Therefore, in view of this, we have studied and improved the existing structure to address its shortcomings and proposed a high-temperature resistant composite filter bag. Utility Model Content

[0005] The purpose of this invention is to provide a high-temperature resistant composite filter bag to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature resistant composite filter bag, comprising an inner filter bag and a protective component. The inner filter bag is an integrated flexible structure. The protective component is disposed on the surface of the inner filter bag and includes a polypropylene protective layer, an aramid fiber protective layer, a coated PPS protective layer, a nylon fiber protective layer, and a polyester fiber protective layer. The polypropylene protective layer is disposed on the outer surface of the inner filter bag, and an aramid fiber protective layer is connected to the outer surface of the polypropylene protective layer. A coated PPS protective layer is disposed on the outer surface of the aramid fiber protective layer, and a nylon fiber protective layer is connected to the outer surface of the coated PPS protective layer. A polyester fiber protective layer is disposed on the outer surface of the nylon fiber protective layer, and the polyester fiber protective layer and the nylon fiber protective layer are an integrated structure.

[0007] Furthermore, the filter bag inner bag and the polypropylene protective layer are bonded together by adhesive, and the filter bag inner bag, polypropylene protective layer, aramid fiber protective layer, coated PPS protective layer, nylon fiber protective layer and polyester fiber protective layer are arranged sequentially from the inside to the outside.

[0008] Furthermore, a filter bag is provided on the outer surface of the polyester fiber protective layer, and the inner surface of the filter bag is adhesively connected to the outer surface of the polyester fiber protective layer.

[0009] Furthermore, a right fixing ring is provided on the upper side of the inner bag of the filter bag, and movable grooves are provided at both the front and rear ends of the left side of the right fixing ring.

[0010] Furthermore, a fixed shaft is provided inside the movable groove, and a movable component is rotatably connected to the outside of the fixed shaft.

[0011] Furthermore, the outer surface of the movable part is rotatably connected to the inner side of the movable groove, and a left fixing ring is provided on the left surface of the movable part.

[0012] Furthermore, both the lower surfaces of the right and left fixing rings are equipped with fixing components, and two sets of fixing components are provided.

[0013] Furthermore, a telescopic support rod is rotatably connected to the inner side of the lower end of the fixing member, and the telescopic support rod is located inside the inner bag of the filter bag.

[0014] This utility model provides a high-temperature resistant composite filter bag, which has the following beneficial effects:

[0015] 1. This utility model incorporates protective components, including a polypropylene protective layer, an aramid fiber protective layer, a coated PPS protective layer, a nylon fiber protective layer, and a polyester fiber protective layer. In use, the polypropylene protective layer enhances the corrosion resistance of the filter bag's interior; the aramid fiber protective layer, with its strong high-temperature resistance, improves the overall high-temperature performance of the filter bag; the coated PPS protective layer, with its high strength, enhances the tensile strength of the filter bag; the nylon fiber protective layer, possessing both heat resistance and chemical resistance, further enhances high-temperature resistance and corrosion resistance; and the polyester fiber protective layer, with its excellent elasticity, prevents the filter bag from tearing. This results in enhanced strength and performance of the device, improved high-temperature and corrosion resistance, and reduced damage, thus extending its service life.

[0016] 2. This utility model, by setting up a right fixed ring, a movable groove, a fixed shaft, a movable component, a left fixed ring, a fixed component, and a telescopic support rod, allows the left fixed ring to rotate around the surface of the fixed shaft via the rotatable connection between the movable component and the inner side of the movable groove. This unfolds the right and left fixed rings, and simultaneously unfolds the telescopic support rod, causing it to rotate downwards around the fixed component and then extend downwards. The filter bag is supported by the right and left fixed rings and the telescopic support rod. When storing the filter bag, the telescopic support rod is retracted and folded inwards, and then the right and left fixed rings are folded. This allows the device to provide stable support for the filter bag, and the foldable support structure facilitates its storage. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of a high-temperature resistant composite filter bag according to the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the protective component of a high-temperature resistant composite filter bag according to the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the right fixing ring of a high-temperature resistant composite filter bag according to this utility model.

[0020] In the diagram: 1. Inner filter bag; 2. Protective components; 201. Polypropylene protective layer; 202. Aramid fiber protective layer; 203. Coated PPS protective layer; 204. Nylon fiber protective layer; 205. Polyester fiber protective layer; 3. Outer filter bag; 4. Right fixing ring; 5. Movable groove; 6. Fixed shaft; 7. Movable part; 8. Left fixing ring; 9. Fixing part; 10. Telescopic support rod. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figures 1 to 3 As shown, a high-temperature resistant composite filter bag includes an inner filter bag 1 and a protective component 2. The inner filter bag 1 is an integrated flexible structure. The protective component 2 is disposed on the surface of the inner filter bag 1 and includes a polypropylene protective layer 201, an aramid fiber protective layer 202, a coated PPS protective layer 203, a nylon fiber protective layer 204, and a polyester fiber protective layer 205. The polypropylene protective layer 201 is disposed on the outer surface of the inner filter bag 1, and the aramid fiber protective layer 202 is connected to the outer surface of the polypropylene protective layer 201. The coated PPS protective layer 203 is disposed on the outer surface of the aramid fiber protective layer 202, and the nylon fiber protective layer 204 is connected to the outer surface of the coated PPS protective layer 203. The polyester fiber protective layer 205 is disposed on the outer surface of the nylon fiber protective layer 204, and the polyester fiber protective layer 205 and the nylon fiber protective layer 204 are an integrated structure.

[0023] The specific operation is as follows: When in use, the polypropylene protective layer 201 can improve the corrosion resistance inside the filter bag; the aramid fiber protective layer 202 has strong high temperature resistance and can improve the overall high temperature resistance of the filter bag; the membrane PPS protective layer 203 has high strength and can enhance the tensile strength of the filter bag; the nylon fiber protective layer 204 not only has heat resistance but also chemical resistance, which can further enhance the high temperature resistance and improve the corrosion resistance; the polyester fiber protective layer 205 has good elasticity and can prevent the filter bag from being torn.

[0024] Please refer to Figure 1 and Figure 3 The inner filter bag 1 and the polypropylene protective layer 201 are bonded together. The inner filter bag 1, polypropylene protective layer 201, aramid fiber protective layer 202, coated PPS protective layer 203, nylon fiber protective layer 204, and polyester fiber protective layer 205 are arranged sequentially from the inside out. The outer surface of the polyester fiber protective layer 205 is fitted with the outer filter bag 3, and the inner surface of the outer filter bag 3 is bonded to the outer surface of the polyester fiber protective layer 205. A right fixing ring 4 is located on the upper side of the inner filter bag 1. The right fixed ring 4 has movable grooves 5 at both the front and rear ends on the left side. A fixed shaft 6 is provided inside the movable groove 5, and a movable part 7 is rotatably connected to the outside of the fixed shaft 6. The outer surface of the movable part 7 is rotatably connected to the inner side of the movable groove 5, and a left fixed ring 8 is provided on the left surface of the movable part 7. Fixing parts 9 are installed on the lower surface of the right fixed ring 4 and the lower surface of the left fixed ring 8. There are two sets of fixing parts 9. A telescopic support rod 10 is rotatably connected to the inner side of the lower end of the fixing part 9, and the telescopic support rod 10 is located inside the inner bag 1 of the filter bag.

[0025] The specific operation is as follows: During use, the left fixing ring 8 can be rotated around the surface of the fixed shaft 6 through the rotating connection between the movable part 7 and the inner side of the movable groove 5, so that the right fixing ring 4 and the left fixing ring 8 can be unfolded. At the same time, the telescopic support rod 10 can be unfolded, so that the telescopic support rod 10 can be rotated downward around the fixed part 9, and then the telescopic support rod 10 can be extended downward. The filter bag is supported by the right fixing ring 4, the left fixing ring 8 and the telescopic support rod 10. When the inner bag 1 of the filter bag is stored, the telescopic support rod 10 is retracted and folded inward, and then the right fixing ring 4 and the left fixing ring 8 are folded.

[0026] In summary, as Figures 1 to 3As shown, in use, the high-temperature resistant composite filter bag firstly allows the left fixing ring 8 to rotate around the surface of the fixed shaft 6 via the rotating connection between the movable part 7 and the inner side of the movable groove 5, thus unfolding the right fixing ring 4 and the left fixing ring 8. Simultaneously, the telescopic support rod 10 unfolds, causing it to rotate downwards around the fixed part 9. The telescopic support rod 10 then extends downwards, supporting the filter bag through the right fixing ring 4, the left fixing ring 8, and the telescopic support rod 10. When storing the inner bag 1, the telescopic support rod 10 is retracted and folded inwards. Then, the right fixing ring 4 is unfolded... The fixed ring 4 and the left fixed ring 8 can be folded together. During the use of this device, the polypropylene protective layer 201 can improve the corrosion resistance of the filter bag, the aramid fiber protective layer 202 has strong high temperature resistance and can improve the overall high temperature resistance of the filter bag, the membrane PPS protective layer 203 has high strength and can enhance the tensile strength of the filter bag, the nylon fiber protective layer 204 not only has heat resistance but also chemical resistance, which can further enhance the high temperature resistance and improve the corrosion resistance, and the polyester fiber protective layer 205 has good elasticity and can prevent the filter bag from being torn.

[0027] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A high-temperature resistant composite filter bag, comprising an inner filter bag (1) and a protective component (2), characterized in that: The inner bag (1) of the filter bag is an integrated flexible structure. The protective component (2) is disposed on the surface of the inner bag (1). The protective component (2) includes a polypropylene protective layer (201), an aramid fiber protective layer (202), a coated PPS protective layer (203), a nylon fiber protective layer (204), and a polyester fiber protective layer (205). The polypropylene protective layer (201) is disposed on the outer surface of the inner bag (1). The outer surface of the polypropylene protective layer (201) is connected to the aramid fiber protective layer (202). The outer surface of the aramid fiber protective layer (202) is provided with a coated PPS protective layer (203). The outer surface of the coated PPS protective layer (203) is connected to the nylon fiber protective layer (204). The outer surface of the nylon fiber protective layer (204) is provided with a polyester fiber protective layer (205). The polyester fiber protective layer (205) and the nylon fiber protective layer (204) are an integrated structure.

2. The high-temperature resistant composite filter bag according to claim 1, characterized in that, The filter bag inner bag (1) and the polypropylene protective layer (201) are bonded together, and the filter bag inner bag (1), polypropylene protective layer (201), aramid fiber protective layer (202), membrane PPS protective layer (203), nylon fiber protective layer (204) and polyester fiber protective layer (205) are arranged sequentially from the inside to the outside.

3. The high-temperature resistant composite filter bag according to claim 1, characterized in that, The outer surface of the polyester fiber protective layer (205) is provided with a filter bag (3), and the inner surface of the filter bag (3) is adhesively connected to the outer surface of the polyester fiber protective layer (205).

4. The high-temperature resistant composite filter bag according to claim 1, characterized in that, The filter bag inner bag (1) is provided with a right fixing ring (4) on the upper side, and the right fixing ring (4) has movable grooves (5) at both the front and rear ends on the left side.

5. The high-temperature resistant composite filter bag according to claim 4, characterized in that, A fixed shaft (6) is provided inside the movable groove (5), and a movable part (7) is rotatably connected to the outside of the fixed shaft (6).

6. The high-temperature resistant composite filter bag according to claim 5, characterized in that, The outer surface of the movable part (7) is rotatably connected to the inner side of the movable groove (5), and a left fixing ring (8) is provided on the left surface of the movable part (7).

7. The high-temperature resistant composite filter bag according to claim 4, characterized in that, The lower surfaces of the right fixing ring (4) and the left fixing ring (8) are both equipped with fixing members (9), and there are two sets of fixing members (9).

8. The high-temperature resistant composite filter bag according to claim 7, characterized in that, The lower end of the fixing member (9) is rotatably connected to a telescopic support rod (10), and the telescopic support rod (10) is located inside the inner bag (1) of the filter bag.

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