High-strength filter bag cage frame for dust removal filter bag
By using an outer and inner ring-shaped support structure, combined with the design of reinforcing plates and blocks, the problem of insufficient support strength of existing filter bag cages is solved, achieving high-strength filter bag support and preventing filter bag damage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JUNFENG CLOTH IND CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-05-01
AI Technical Summary
The existing filter bag cages rely on a single layer of vertical bars for support, resulting in insufficient support strength. They are particularly prone to deformation under pressure in the middle, making them difficult to reuse.
The outer and inner rods arranged in an inner and outer rings serve as the support structure, and are reinforced by reinforcing plates, reinforcing blocks, and reinforcing ribs to form a multi-layer support structure. The design incorporates curved chamfers and guide blocks to prevent scratching the filter bags.
It significantly improves the overall strength and compressive strength of the filter bag cage, extends its service life, and prevents damage to the filter bags.
Smart Images

Figure CN224180484U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dust removal equipment technology, and in particular to a high-strength filter bag cage for dust removal filter bags. Background Technology
[0002] With rapid economic development and increased environmental awareness, the requirements for dust removal in industrial coal combustion are constantly increasing. This poses a significant challenge to enterprises with high dust emissions. In industries such as smelting, mining, chemical, cement and building materials, feed, and power generation, it is necessary to remove pollution, protect the environment, and improve working conditions. Filter bag dust removal technology is a mature dust collection and flue gas purification technology. Due to its wide applicability and significant economic benefits, it has become the main application technology for industrial dust removal in my country.
[0003] Baghouse dust collectors are a commonly used type of dust collector, also known as filtration dust collectors. They are dust removal devices that use filter bag assemblies to filter solid particles from dust-laden gas. One of the core components of a baghouse dust collector is the filter bag, while the cage is the main component supporting the filter bag. Existing filter bag cages, when in use, rely solely on a single layer of vertical rods in a circular array as the support structure for the filter bags. Furthermore, the vertical rods are quite long, resulting in poor central support strength, making them highly susceptible to deformation under pressure and difficult to reuse. Utility Model Content
[0004] The purpose of this application is to provide a high-strength filter bag cage for dust collector filter bags, in order to solve the problem mentioned in the background art that the existing filter bag cages rely solely on a single layer of vertical rods in a ring array as the support structure for the filter bags, and the vertical rods are relatively long, resulting in poor support strength in the middle, easy deformation under pressure, and difficulty in reuse.
[0005] To achieve the above objectives, this application provides the following technical solution: a high-strength filter bag cage for dust collector filter bags, comprising a circular top plate and a fixed base, wherein the fixed base is located directly below the circular top plate, and a reinforcing plate, a plurality of outer rods and a plurality of inner rods are fixed between the circular top plate and the fixed base. The plurality of outer rods are located on the outside of the reinforcing plate, and the plurality of inner rods are located on the inside of the reinforcing plate. The plurality of outer rods and the plurality of inner rods are all fixedly connected to the reinforcing plate, and the plurality of outer rods and the plurality of inner rods are arranged in a circular array. The plurality of outer rods and the plurality of inner rods are the same in number, and the plurality of outer rods and the plurality of inner rods are arranged in a one-to-one correspondence. A plurality of reinforcing blocks are fixedly sleeved on the outside of the correspondingly arranged outer rods and inner rods.
[0006] Furthermore, the reinforcing plate has a first slot that matches the outer rod body, and a second slot that matches the inner rod body. A reinforcing rib is fixed on the reinforcing plate between the first slot and the second slot.
[0007] Furthermore, the reinforcing sheet has a spiral structure.
[0008] Furthermore, the top of the fixed base is provided with a groove, and the reinforcing plate, outer rod and inner rod are all located inside the groove.
[0009] Furthermore, a reserved groove is provided at the bottom of the annular top plate, and the reinforcing plate, outer rod and inner rod are all located inside the reserved groove.
[0010] Furthermore, a guide block is fixed to the bottom of the fixed base, and the guide block has a semi-ellipsoidal structure.
[0011] Furthermore, the upper and lower edges of the circular top plate, the top edge of the fixed base, and the upper and lower edges of the reinforcing block are all provided with arc-shaped chamfers.
[0012] In summary, the technical effects and advantages of this utility model are as follows:
[0013] 1. In this utility model, a number of outer rods and inner rods arranged in a ring shape are used as the support structure for the filter bag. Reinforcing plates are installed between the outer rods and inner rods, and reinforcing blocks are added to the corresponding outer rods and inner rods. This significantly improves the strength and compressive strength of the structure for supporting the filter bag, which is composed of the outer rods, inner rods, reinforcing blocks, and reinforcing plates. It also reduces the probability of deformation in the middle of the cage and extends its service life.
[0014] 2. In this utility model, by opening arc-shaped chamfers at the upper and lower edges of the circular top plate, opening arc-shaped chamfers at the top edge of the fixed base, adding a semi-ellipsoidal guide block at the bottom of the fixed base, and opening arc-shaped chamfers at the upper and lower edges of the reinforcing block, the cage frame can be effectively prevented from scratching the filter bag. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the embodiments or the prior art will be briefly introduced below.
[0016] Figure 1 This is a three-dimensional structural diagram of a filter bag cage for a high-strength dust collector filter bag according to an embodiment of this application;
[0017] Figure 2 This is a longitudinal sectional view of the annular top plate in an embodiment of this application;
[0018] Figure 3 This is a longitudinal sectional view of the fixed base and guide block in an embodiment of this application;
[0019] Figure 4This is a diagram showing the connection relationship between the reinforcing sheet and the stiffener in the embodiments of this application;
[0020] Figure 5 This is a diagram showing the connection relationship between the outer rod, inner rod, and reinforcing block in an embodiment of this application.
[0021] In the diagram: 1. Circular top plate; 2. Fixed base; 3. Reinforcing plate; 4. Outer rod; 5. Inner rod; 6. Reinforcing block; 7. Reinforcing rib; 8. Groove; 9. Reserved slot; 10. Guide block. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Example: Reference Figure 1-5 The high-strength filter bag cage shown includes a circular top plate 1 and a fixed base 2. The fixed base 2 is located directly below the circular top plate 1. A reinforcing plate 3, multiple outer rods 4, and multiple inner rods 5 are fixed between the circular top plate 1 and the fixed base 2. The reinforcing plate 3 has a spiral structure. The multiple outer rods 4 are located on the outside of the reinforcing plate 3, and the multiple inner rods 5 are located on the inside of the reinforcing plate 3. The multiple outer rods 4 and multiple inner rods 5 are all fixedly connected to the reinforcing plate 3, and the multiple outer rods 4 and multiple inner rods 5 are arranged in a circular array. The number of multiple outer rods 4 and multiple inner rods 5 is the same, and the multiple outer rods 4 and multiple inner rods 5 are arranged in a one-to-one correspondence. Multiple reinforcing blocks 6 are fixedly sleeved on the outside of the correspondingly arranged outer rods 4 and inner rods 5.
[0024] Multiple outer rods 4 and multiple inner rods 5, arranged in a ring, are used as the support structure for the filter bag. Reinforcing plates 3 are installed between the multiple outer rods 4 and multiple inner rods 5. Multiple reinforcing blocks 6 are added to the corresponding outer rods 4 and inner rods 5. The structure for supporting the filter bag, composed of multiple outer rods 4, multiple inner rods 5, multiple reinforcing blocks 6 and reinforcing plates 3, is significantly improved in terms of its own strength and compressive strength.
[0025] The reinforcing plate 3 has a first slot that matches the outer rod 4, and a second slot that matches the inner rod 5. A reinforcing rib 7 is fixed on the reinforcing plate 3 between the first slot and the second slot.
[0026] Adding a reinforcing rib 7 between the first slot and the corresponding second slot on the reinforcing plate 3 can prevent the reinforcing plate 3 from deforming and enhance the structural strength of the connection between the reinforcing plate 3, the outer rod 4 and the inner rod 5.
[0027] The top of the fixed base 2 is provided with a groove 8, and the bottom of the annular top plate 1 is provided with a reserved groove 9. The reinforcing plate 3, the outer rod 4 and the inner rod 5 are all located inside the groove 8 and the reserved groove 9. The reserved groove 9 at the bottom of the annular top plate 1 and the groove 8 at the top of the fixed base 2 are both for better wrapping the outer rod 4 and the inner rod 5.
[0028] Among them, the upper and lower edges of the annular top plate 1, the top edge of the fixed base 2, and the upper and lower edges of the reinforcing block 6 are all provided with arc-shaped chamfers. The bottom of the fixed base 2 is fixed with a guide block 10, which has a semi-ellipsoidal structure.
[0029] By creating arc-shaped chamfers at the upper and lower edges of the circular top plate 1, arc-shaped chamfers at the top edge of the fixed base 2, adding a semi-ellipsoidal guide block 10 at the bottom of the fixed base 2, and arc-shaped chamfers at the upper and lower edges of the reinforcing block 6, the cage frame can be effectively prevented from scratching the filter bag.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-strength filter bag cage for dust collector filter bags, comprising a circular top plate (1) and a fixed base (2), characterized in that: The fixed base (2) is located directly below the annular top plate (1). A reinforcing plate (3), several outer rods (4) and several inner rods (5) are fixed between the annular top plate (1) and the fixed base (2). Several outer rods (4) are located outside the reinforcing plate (3), and several inner rods (5) are located inside the reinforcing plate (3). Several outer rods (4) and several inner rods (5) are fixedly connected to the reinforcing plate (3), and several outer rods (4) and several inner rods (5) are arranged in a circular array. Several outer rods (4) and several inner rods (5) have the same number, and several outer rods (4) and several inner rods (5) are arranged in a one-to-one correspondence. Several reinforcing blocks (6) are fixedly sleeved on the outside of the corresponding outer rods (4) and the inner rods (5).
2. The filter bag cage for high-strength dust collector filter bags according to claim 1, characterized in that: The reinforcing plate (3) has a first slot that matches the outer rod (4), and the reinforcing plate (3) has a second slot that matches the inner rod (5). A reinforcing rib (7) is fixed on the reinforcing plate (3) between the first slot and the second slot.
3. The filter bag cage for high-strength dust collector filter bags according to claim 1, characterized in that: The reinforcing sheet (3) has a spiral structure.
4. The filter bag cage for high-strength dust collector filter bags according to claim 1, characterized in that: The top of the fixed base (2) is provided with a groove (8), and the reinforcing plate (3), the outer rod (4) and the inner rod (5) are all located inside the groove (8).
5. The filter bag cage for high-strength dust collector filter bags according to claim 1, characterized in that: The bottom of the annular top plate (1) is provided with a reserved groove (9), and the reinforcing plate (3), the outer rod (4) and the inner rod (5) are all located inside the reserved groove (9).
6. The filter bag cage for high-strength dust collector filter bags according to claim 1, characterized in that: The bottom of the fixed base (2) is fixed with a guide block (10), which is a semi-ellipsoidal structure.
7. The filter bag cage for high-strength dust collector filter bags according to claim 1, characterized in that: The upper and lower edges of the circular top plate (1), the top edge of the fixed base (2), and the upper and lower edges of the reinforcing block (6) are all provided with arc-shaped chamfers.