A pleated filter bag for flue gas cleaning

Abstract

The utility model discloses a kind of pleated filter bags for flue gas purification, it is related to dust cloth bag technical field, including the pleated filter bag being composed of cloth bag main body, pleat part, multiple pleat parts are set, multiple the pleat part is evenly distributed into the skeleton middle part of cloth bag main body in annular shape, the outside of cloth bag main body is provided with support assembly at pleat part position, the support assembly is used to provide support, reinforcement for the star structure of cloth bag main body, pleat part.The utility model is provided with support assembly, wave peak film supports pleat part, avoid pleat part excessive deformation under the impact of backflushing compressed air, simultaneously, after backflushing cleaning is completed, pleat part can be quickly reset under the elastic force of wave peak film, in addition, rubber ring piece is fixed by adhesive and cloth bag main body bonding, the part of cloth bag main body and pleat part contact can not be internally collapsed, effectively improve the overall strength of pleated filter bag skeleton.

Description

Technical Field

[0001] This utility model relates to the field of dust collector bags, specifically a pleated filter bag for flue gas purification. Background Technology

[0002] Baghouse dust collectors are one of the commonly used filtration devices for flue gas purification. The filter bags are a key component in the operation of a baghouse dust collector. Typically, cylindrical filter bags are suspended vertically inside the dust collector. The filter bags are made of woven filter cloth or non-woven felt, utilizing the filtration effect of the fibrous fabric to filter dust-laden gas. When dust-laden gas enters the baghouse dust collector, large and heavy dust particles settle down due to gravity and fall into the ash hopper. When the gas containing finer dust particles passes through the filter media, the dust is trapped, thus purifying the gas.

[0003] Pleated dust collector bags achieve the maximum filtration area in a limited space by folding the filter material. The cross-section of its frame is usually star-shaped or wavy, and each "peak" supports a pleat of the bag, ensuring that the pleats can maintain their shape during filtration and cleaning, avoiding being crushed or excessively deformed, thereby ensuring the smooth flow of air. However, in actual use, pleated dust collector bags have the following problems: If the frame is not strong enough, it will deform under the repeated action of negative pressure and dust removal. Some or all of the pleats will be flattened, losing their function of increasing the filter area and causing the resistance to rise sharply. Based on this, in order to further increase the skeleton strength of the pleated dust collector bag, a pleated filter bag for flue gas purification is provided. Utility Model Content

[0004] The purpose of this utility model is to provide a pleated filter bag for flue gas purification in order to solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pleated filter bag for flue gas purification, comprising a pleated filter bag consisting of a bag body and pleated portions, wherein multiple pleated portions are provided and are evenly distributed in a ring in the middle of the frame of the bag body, and a support component is provided on the outer side of the bag body at the position of the pleated portion, the support component being used to provide support and reinforcement for the star-shaped structure of the bag body and the pleated portions; The support assembly includes a rubber ring and a corrugated film. Multiple wave-shaped films are provided, and their number matches the number of pleats. The multiple wave-shaped films are arranged in a ring and fixed inside the rubber ring. The rubber ring is fitted onto the outside of the main body of the bag, and the corrugated film is snapped into the concave part of the pleats. The corrugated film is used to provide reinforcement support for the pleats.

[0006] As a further embodiment of this utility model: the inner diameter of the rubber ring is matched with the outer diameter of the frame of the bag body, the outer wall shape of the corrugated film is matched with the shape of the concave part of the pleats, and the rubber ring is bonded and fixed to the bag body by adhesive, while the corrugated film is attached to the pleats but not connected.

[0007] As a further improvement of this utility model, weight reduction holes are provided at the positions where the rubber ring contacts the main body of the bag, at the positions where the crest of the corrugated film contacts the pleats, and at the positions where the side of the corrugated film contacts the pleats.

[0008] As a further improvement of this utility model, multiple support components are evenly installed along the vertical height of the folds.

[0009] As a further improvement of this utility model, the rubber ring, the corrugated film, and the weight-reducing hole are integrally formed by rubber injection molding.

[0010] Compared with the prior art, the beneficial effects of this utility model are: By setting up support components, the corrugated film supports the pleats, preventing them from deforming excessively under the impact of backflushing compressed air. At the same time, after backflushing cleaning, the pleats can quickly return to their original position under the elastic force of the corrugated film. In addition, the rubber ring is bonded to the bag body with adhesive, which prevents the part of the bag body that contacts the pleats from collapsing inward, effectively improving the overall strength of the pleated filter bag skeleton. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram showing the disassembled support component of this utility model; Figure 3 This is a structural cross-sectional view of the support component of this utility model.

[0012] In the diagram: 1. Pleated filter bag; 101. Bag body; 102. Pleated part; 2. Support component; 201. Rubber ring; 202. Corrugated film; 203. Weight reduction hole. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not 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 effort are within the protection scope of the present utility model.

[0014] Please see Figures 1-3 In this embodiment of the present invention, a pleated filter bag for flue gas purification includes a pleated filter bag 1 composed of a bag body 101 and pleated portions 102. Multiple pleated portions 102 are provided and are evenly distributed in a ring in the middle of the skeleton of the bag body 101. A support component 2 is provided on the outer side of the bag body 101 at the position of the pleated portions 102. The support component 2 is used to provide support and reinforcement for the star-shaped structure of the bag body 101 and the pleated portions 102. Support component 2 includes a rubber ring sheet 201 and a corrugated film sheet 202; Multiple wave-shaped films 202 are provided, and the number matches the number of pleats 102. The multiple wave-shaped films 202 are arranged in a ring and fixed inside the rubber ring 201. A rubber ring 201 is fitted onto the outside of the main body 101 of the bag, and a corrugated film 202 is snapped into the concave part of the pleats 102. The corrugated film 202 is used to provide reinforcement support for the pleats 102. The inner diameter of the rubber ring 201 matches the outer diameter of the skeleton of the main body 101 of the bag, and the outer wall shape of the corrugated film 202 matches the shape of the concave part of the pleats 102. The rubber ring 201 is bonded and fixed to the main body 101 of the bag with adhesive, and the corrugated film 202 is attached to the pleats 102 but not connected. Multiple support components 2 are evenly installed along the vertical height of the folded portion 102.

[0015] In this embodiment: by installing multiple support components 2 on the outside of the bag body 101, the pleated part 102 can be supported in segments. In this way, the corrugated film 202 can provide internal support force for the pleated part 102. During backflushing cleaning, since the corrugated film 202 can be squeezed and deformed, the pleated part 102 can still be impacted and deformed by compressed air. At the same time, the corrugated film 202 is squeezed and deformed, and the deformed corrugated film 202 can provide a restoring elastic force for the pleated part 102. Meanwhile, the support of the corrugated film 202 for the pleated part 102 can also prevent it from being over-deformed. After the backflushing cleaning is completed, the pleated part 102 quickly returns to its original position under the elastic force of the corrugated film 202. In addition, the rubber ring 201 is bonded and fixed to the bag body 101 with adhesive, so that the part of the bag body 101 in contact with the pleated part 102 will not collapse inward, thus ensuring the stability of the overall structure of the pleated filter bag 1. By using the structural design of the support component 2, the overall strength of the pleated filter bag 1 skeleton is effectively improved, enabling the pleated filter bag 1 to maintain a high-efficiency filtration effect for a long time.

[0016] Please refer to this carefully. Figures 1-3Weight reduction holes 203 are provided at the contact points between the rubber ring 201 and the main body 101 of the bag, at the contact points between the crest of the corrugated film 202 and the pleated part 102, and at the contact points between the side of the corrugated film 202 and the pleated part 102.

[0017] In this embodiment: the overall weight of the support component 2 is effectively reduced by the structure of the weight reduction hole 203, thereby reducing the vertical tension on the pleated filter bag 1. At the same time, the structure of the weight reduction hole 203 can also reduce the area of ​​the support component 2 covering the pleated filter bag 1. In addition, the structure of the weight reduction hole 203 on the waveform film 202 can give the waveform film 202 good deformation recovery elasticity.

[0018] Please refer to this carefully. Figures 1-3 The rubber ring 201, the corrugated film 202, and the weight reduction hole 203 are integrally formed by rubber injection molding.

[0019] In this embodiment, the support component 2 is made of high-temperature and corrosion-resistant rubber material. It has good deformation and recovery elasticity, can adapt to the working environment of flue gas purification, and has controllable processing costs, making it easy to promote and use.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pleated filter bag for flue gas purification, comprising a pleated filter bag (1) consisting of a bag body (101) and pleated portions (102), wherein multiple pleated portions (102) are provided, and the multiple pleated portions (102) are evenly distributed in a ring in the middle of the skeleton of the bag body (101), characterized in that, The main body of the bag (101) is provided with a support component (2) on the outside of the pleated part (102). The support component (2) is used to provide support and reinforcement for the star-shaped structure of the main body of the bag (101) and the pleated part (102). The support component (2) includes a rubber ring sheet (201) and a corrugated film sheet (202). The wave peak film (202) is provided in multiple quantities, and the number matches the number of pleats (102). The multiple wave peak films (202) are arranged in a ring and fixed inside the rubber ring (201). The rubber ring (201) is sleeved on the outside of the bag body (101), and the corrugated film (202) is snapped into the concave part of the pleats (102). The corrugated film (202) is used to provide reinforcement support for the pleats (102).

2. The pleated filter bag for flue gas purification according to claim 1, characterized in that, The inner diameter of the rubber ring (201) matches the outer diameter of the frame of the bag body (101), the outer wall shape of the corrugated film (202) matches the shape of the concave part of the pleated part (102), and the rubber ring (201) is bonded and fixed to the bag body (101) by adhesive. The corrugated film (202) is attached to the pleated part (102) but not connected.

3. The pleated filter bag for flue gas purification according to claim 1, characterized in that, Weight reduction holes (203) are provided at the positions where the rubber ring (201) contacts the main body of the bag (101), at the positions where the crest of the corrugated film (202) contacts the pleated part (102), and at the positions where the side of the corrugated film (202) contacts the pleated part (102).

4. The pleated filter bag for flue gas purification according to claim 1, characterized in that, The support components (2) are evenly installed along the vertical height of the fold (102).

5. A pleated filter bag for flue gas purification according to claim 3, characterized in that, The rubber ring (201), the corrugated film (202), and the weight reduction hole (203) are integrally formed by rubber injection molding.

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