Filter bag compound structure of pulse bag type dust collector

Abstract

The utility model discloses a compound structure of a filter bag of a pulse bag type dust collector, belongs to the technical field of dust collection filter bags, and aims to solve the technical problems that the bottom end of the filter bag lacks a supporting structure, the bottom end of the filter bag is easy to bend and difficult to stretch in a filter, and the filtering performance of the filter bag is influenced in the prior art. The compound structure of the filter bag of the pulse bag type dust collector comprises a dust collector filter bag body, the top reinforcing ring is fixed at the top end of the dust collector filter bag body and is used for expanding and reinforcing the top end of the dust collector filter bag body; and the bottom reinforcing disc is fixed at the bottom end of the dust remover filter bag body and is used for blocking, expanding and reinforcing the bottom end of the dust remover filter bag body. According to the compound structure of the filter bag of the pulse bag type dust collector, an expanding and fixing structure for the filter bag body of the dust collector is additionally arranged, so that the filter bag body of the dust collector can be integrally stretched after being mounted, the integral strength of the filter bag body of the dust collector is improved, dust filtration is facilitated, meanwhile, the phenomenon that the filter bag body of the dust collector is expanded and broken due to pressure overload can be prevented, and the service life of the filter bag body is prolonged. The stability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust removal filter bags, and particularly relates to a composite structure of a filter bag for a pulse bag filter. Background Art

[0002] In recent years, industries such as electric power, cement, steel, non-ferrous metals, and chemical engineering in China have developed rapidly, and their production capacities have ranked first in the world successively. As a result, the problem of air pollution has become increasingly prominent, and the treatment of air pollution is extremely urgent. With the strengthening of people's awareness of environmental protection and the formulation and implementation of the new environmental protection law, more and more enterprises are spontaneously carrying out near-zero emission and ultra-low emission transformation, and the selection of bag filters has become the mainstream of equipment for treating air pollutants and fine particulate matter.

[0003] As the core component of a bag filter, the filter bag has the advantages of high dust removal efficiency, strong adaptability, stable and reliable operation, and convenience for recovering materials. However, the filter bags used in traditional pulse bag filters generally have a structural form of combining a filter bag body with a top fixing ring. When the filter bag is installed in the filter, the bottom end of the filter bag lacks a support structure, and it is easy to have the phenomenon that the bottom end of the filter bag is bent and difficult to stretch in the filter, which affects the filtering performance of the filter bag. Therefore, this application proposes a composite structure of a filter bag for a pulse bag filter. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a composite structure of a filter bag for a pulse bag filter, aiming to solve the technical problem that the bottom end of the filter bag lacks a support structure in the prior art, and it is easy to have the phenomenon that the bottom end of the filter bag is bent and difficult to stretch in the filter, which affects the filtering performance of the filter bag.

[0005] Technical Solution

[0006] In order to solve the above technical problems, the utility model provides a composite structure of a filter bag for a pulse bag filter, which is applicable to a pulse dust collector and includes a dust collector filter bag body; a top reinforcement ring fixed at the top end of the dust collector filter bag body for expanding and reinforcing the top end of the dust collector filter bag body; a bottom reinforcement plate fixed at the bottom end of the dust collector filter bag body for plugging and expanding and reinforcing the bottom end of the dust collector filter bag body; and reinforcement rods arranged between the top reinforcement ring and the bottom reinforcement plate. A plurality of the reinforcement rods are arranged around the dust collector filter bag body for integrally supporting and reinforcing the dust collector filter bag body.

[0007] Preferably, a plurality of first sleeves are vertically arranged on the outer peripheral wall of the top reinforcement ring, a plurality of second sleeves are arranged on the outer peripheral wall of the bottom reinforcement plate, and the reinforcement rods are arranged between the first sleeves and the second sleeves.

[0008] Preferably, the reinforcing rod is movably inserted through the first sleeve. A end cap is fixed to the top end of the reinforcing rod. A hexagonal groove is formed in the end cap. A screw hole is formed in the top end of the second sleeve. A threaded groove threadedly adapted to the screw hole is provided on the side wall of the bottom end of the reinforcing rod.

[0009] Preferably, a ring plate is provided at the top end of the top reinforcing ring. The ring plate is hermetically connected between the outer wall of the top reinforcing ring and the side wall of the first sleeve. Protrusions are provided on the inner wall of the top reinforcing ring.

[0010] Preferably, a ring seat is provided on the outer side of the upper surface of the ring plate. The height of the ring seat is greater than the height of the end cap.

[0011] Preferably, a first rubber gasket is provided on the bottom end face of the end cap. A second rubber gasket is provided on the upper surface of the ring seat.

[0012] Preferably, the dust collector filter bag body is composed of a dense layer, a dust-facing layer, a base fabric and an inner layer from outside to inside. The dense layer is made of ultra-fine fibers with a fineness range of 0.3-1.0 dtex. The dust-facing layer is made of ordinary fibers. The inner layer is provided with a coarse pore structure that facilitates air passage.

[0013] Advantageous Effects

[0014] Compared with the prior art, the advantageous effects of the present utility model are as follows:

[0015] With the present utility model, through the arrangement of the top reinforcing ring, the bottom reinforcing disc and the reinforcing rods, the top reinforcing ring can expand and fix the top end of the dust collector filter bag body. The bottom reinforcing disc seals and expands and fixes the bottom end of the dust collector filter bag body. Multiple reinforcing rods surround the circumference of the dust collector filter bag body to integrally reinforce and support the dust collector filter bag body, ensuring that the dust collector filter bag body can be fully unfolded after installation, improving the overall strength of the dust collector filter bag body and being more conducive to dust filtration. In addition, the arrangement of multiple reinforcing rods can also prevent the phenomenon of the dust collector filter bag body bulging and bursting due to overpressure, having high stability performance.

[0016] In the present utility model, through the movable through-fit of the reinforcing rod and the first sleeve, and the threaded fit of the bottom end of the reinforcing rod and the second sleeve, it is convenient for the installation and disassembly of the reinforcing rod, thus being beneficial to the installation, use, disassembly and storage of the dust collector filter bag body, with a flexible structure and easy to use.

[0017] In the present utility model, since the dust collector filter bag body is composed of a dense layer, a dust-facing layer, a base fabric and an inner layer from outside to inside, the design of this gradient layer structure is beneficial to the formation of filter cakes, enabling the dust collector filter bag body to have high filtration accuracy and maintain a large air permeability, improving the dust collection efficiency and reducing the operation resistance of the equipment, having high performance in use. Description of the Drawings

[0018] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 Schematic diagram of the structure of the top reinforcement ring in the present utility model;

[0021] Figure 3 For the present utility model Figure 1 Enlarged view at A in;

[0022] Figure 4 Structural diagram of the dust collector filter bag body in the present utility model.

[0023] The reference signs in the drawings are: 1. Dust collector filter bag body; 2. Top reinforcement ring; 3. Bottom reinforcement plate; 4. Reinforcement rod; 5. End cap; 6. First rubber sealing gasket; 7. Ring plate; 8. Ring seat; 9. Second rubber sealing gasket; 10. Protrusion; 11. First sleeve; 12. Second sleeve; 13. Screw hole; 14. Thread groove; 15. Dense layer; 16. Dust-facing layer; 17. Base fabric; 18. Inner layer. Specific embodiments

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than 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 efforts belong to the scope of protection of the present utility model.

[0025] This embodiment provides a pulse bag filter duplex structure, and its structural diagram is as Figures 1 - 4As shown in the figure, it is applicable to a pulse dust collector, including a dust collector filter bag body 1; a top reinforcement ring 2 fixed at the top end of the dust collector filter bag body 1 for expanding and reinforcing the top end of the dust collector filter bag body 1; a bottom reinforcement plate 3 fixed at the bottom end of the dust collector filter bag body 1 for plugging and expanding and reinforcing the bottom end of the dust collector filter bag body 1; a reinforcement rod 4 arranged between the top reinforcement ring 2 and the bottom reinforcement plate 3. A plurality of reinforcement rods 4 are arranged around the dust collector filter bag body 1 for overall support and reinforcement of the dust collector filter bag body 1. Through this structural arrangement, the top reinforcement ring 2 can expand and fix the top end of the dust collector filter bag body 1, the bottom reinforcement plate 3 plugs and expands and fixes the bottom end of the dust collector filter bag body 1, and the plurality of reinforcement rods 4 surround the circumference of the dust collector filter bag body 1 to integrally reinforce and support the dust collector filter bag body 1, ensuring that the dust collector filter bag body 1 can be fully unfolded after installation. While improving the overall strength of the dust collector filter bag body 1, it is more conducive to dust filtration. In addition, the arrangement of the plurality of reinforcement rods 4 can also prevent the phenomenon of the dust collector filter bag body 1 bulging and bursting due to overpressure, having high stability performance.

[0026] As a preferred technical solution in this embodiment, a plurality of first sleeves 11 are vertically arranged on the outer peripheral wall of the top reinforcement ring 2, and a plurality of second sleeves 12 are arranged on the outer peripheral wall of the bottom reinforcement plate 3. The reinforcement rod 4 is arranged between the first sleeve 11 and the second sleeve 12. Specifically, the reinforcement rod 4 is movably inserted through the first sleeve 11. A end cap 5 is fixed at the top end of the reinforcement rod 4, and a hexagonal groove is opened on the end cap 5. A screw hole 13 is opened at the top end of the second sleeve 12, and a thread groove 14 threadedly adapted to the screw hole 13 is arranged on the side wall of the bottom end of the reinforcement rod 4. By using the threaded fit between the screw hole 13 and the thread groove 14, the bottom end of the reinforcement rod 4 can be inserted and fixed with the second sleeve 12, facilitating the installation and disassembly of the reinforcement rod 4, and being beneficial to the installation, use, disassembly and storage of the dust collector filter bag body 1.

[0027] In this embodiment, a ring plate 7 is arranged at the top end of the top reinforcement ring 2. The ring plate 7 is hermetically connected between the outer wall of the top reinforcement ring 2 and the side wall of the first sleeve 11 for the dust collector filter bag body 1 to be clamped and installed on the pulse dust collector. A convex block 10 is arranged on the inner wall of the top reinforcement ring 2 to facilitate the removal of the dust collector filter bag body 1. A ring seat 8 is arranged on the outer side of the upper surface of the ring plate 7, and the height of the ring seat 8 is greater than the height of the end cap 5. After screwing the end cap 5 to connect the reinforcement rod 4 with the second sleeve 12, the end cap 5 abuts against the ring plate 7. At this time, the top cover on the pulse dust collector can be hermetically covered with the ring seat 8. A first rubber gasket 6 is arranged on the bottom end surface of the end cap 5 for sealing between the end cap 5 and the first sleeve 11, and a second rubber gasket 9 is arranged on the upper surface of the ring seat 8 for sealing between the ring seat 8 and the top cover of the pulse dust collector.

[0028] In a further embodiment, the dust collector filter bag body 1 is composed of a dense layer 15, a dust-facing layer 16, a base fabric 17, and an inner layer 18 from outside to inside. The dense layer 15 is made of ultra-fine fibers with a fineness range of 0.3 to 1.0 dtex. The dust-facing layer 16 is made of ordinary fibers. The inner layer 18 is provided with a coarse pore structure that facilitates air passage. The design of this gradient layer structure is conducive to cake formation, enabling the dust collector filter bag body 1 to have a high filtration accuracy and maintain a large air permeability, improving the dust collection efficiency, reducing the operating resistance of the equipment, and having high performance.

[0029] Working principle: During use, multiple reinforcing rods 4 are passed through the first sleeves 11 on the circumferential wall of the top reinforcing ring 2, and then the end caps 5 are rotated. The bottom ends of the reinforcing rods 4 are fixedly inserted into the second sleeves 12 through the threaded engagement between the threaded grooves 14 and the threaded holes 13. Thus, the top reinforcing ring 2 and the bottom reinforcing plate 3 are relatively supported and fixed. Among them, the top reinforcing ring 2 can expand and support the top end of the dust collector filter bag body 1, and the bottom reinforcing plate 3 seals and expands and supports the bottom end of the dust collector filter bag body 1. The multiple reinforcing rods 4 are arranged around the circumference of the dust collector filter bag body 1 to integrally reinforce and support the dust collector filter bag body 1, ensuring that the dust collector filter bag body 1 can be fully stretched after installation. While improving the overall strength of the dust collector filter bag body 1, it is more conducive to dust filtration. In addition, the arrangement of the multiple reinforcing rods 4 can also prevent the phenomenon of the dust collector filter bag body 1 bulging and bursting due to overpressure, having high stability performance. Further, the dust collector filter bag body 1 is composed of a dense layer 15, a dust-facing layer 16, a base fabric 17, and an inner layer 18 from outside to inside. The design of this gradient layer structure is conducive to cake formation, enabling the dust collector filter bag body 1 to have a high filtration accuracy and maintain a large air permeability, improving the dust collection efficiency, reducing the operating resistance of the equipment, and having high performance.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. The double-layer structure of the filter bag of the pulse bag filter is applicable to the pulse dust collector, and is characterized in that, Comprising: A dust collector filter bag body (1); A top reinforcement ring (2) fixed to the top end of the dust collector filter bag body (1) for expanding and reinforcing the top end of the dust collector filter bag body (1); A bottom reinforcement disk (3) fixed to the bottom end of the dust collector filter bag body (1) for plugging and expanding and reinforcing the bottom end of the dust collector filter bag body (1); Reinforcement rods (4) arranged between the top reinforcement ring (2) and the bottom reinforcement disk (3), with multiple reinforcement rods (4) arranged around the dust collector filter bag body (1) for integrally supporting and reinforcing the dust collector filter bag body (1).

2. The compound structure of the filter bag of the pulse bag filter according to claim 1, wherein A plurality of first sleeves (11) are vertically arranged on the outer peripheral wall of the top reinforcement ring (2), a plurality of second sleeves (12) are arranged on the outer peripheral wall of the bottom reinforcement disk (3), and the reinforcement rods (4) are arranged between the first sleeves (11) and the second sleeves (12).

3. The compound structure of the filter bag of the pulse jet bag filter according to claim 2, wherein, The reinforcement rods (4) are movably inserted through the first sleeves (11), an end cap (5) is fixed to the top end of the reinforcement rods (4), a hexagonal groove is formed in the end cap (5), a screw hole (13) is formed in the top end of the second sleeve (12), and a thread groove (14) threadedly adapted to the screw hole (13) is arranged on the side wall of the bottom end of the reinforcement rods (4).

4. The compound structure of the filter bag of the pulse bag filter according to claim 3, characterized in that, A ring plate (7) is arranged at the top end of the top reinforcement ring (2), and the ring plate (7) is hermetically connected between the outer wall of the top reinforcement ring (2) and the side wall of the first sleeve (11), and a convex block (10) is arranged on the inner wall of the top reinforcement ring (2).

5. The composite structure of the filter bag of the pulse bag filter according to claim 4, characterized in that, A ring seat (8) is arranged on the outer side of the upper surface of the ring plate (7), and the height of the ring seat (8) is greater than the height of the end cap (5).

6. The compound structure of the filter bag of the pulse bag filter according to claim 5, characterized in that, A first rubber gasket (6) is arranged on the bottom end surface of the end cap (5), and a second rubber gasket (9) is arranged on the upper surface of the ring seat (8).

7. The compound structure of the filter bag of the pulse bag filter according to claim 1, wherein The dust collector filter bag body (1) is successively composed of a dense layer (15), a dust-facing layer (16), a base fabric (17), and an inner layer (18) from outside to inside. The dense layer (15) is made of ultra-fine fibers, the fineness range of the ultra-fine fibers is 0.3 - 1.0 dtex, the dust-facing layer (16) is made of ordinary fibers, and the inner layer (18) is arranged as a coarse pore structure that is easy for air to pass through.

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