Leakage-proof fixing device for filter bag of household garbage incineration flue gas

Abstract

The utility model discloses life garbage incineration flue gas filter bag leak protection fixing device relates to garbage incineration flue gas treatment technical field, including mounting panel, the mounting ring is fixedly installed on the mounting panel, the top of mounting ring is provided with the fixed ring, in the utility model, the staff will filter bag hem be located between the recess and the pressure ring of mounting ring, and the fixed bolt is tightened fixed ring and mounting ring, and the fixed ring presses down and drives the recess movement of pressure ring, and the compression tower shape spring, reset spring, damper, and the tower shape spring gradually even scattered pressure, and the reset spring and damper in the inside protection and guide are simultaneously, the reset spring is covered in the damper, and both synergies, and the damper absorbs vibration energy, and the first round board of damper bottom moves, and the fan -shaped piece shape elastic piece deformation, and further disperses buffer pressure, and ensures that filter bag hem is even steady and is pressed tightly, and the effect of multilayer structure makes filter bag hem and mounting ring, pressure ring close closely, prevents flue gas leakage, and guarantees the filtration high efficiency.

Description

Technical Field

[0001] This utility model relates to the field of waste incineration flue gas treatment technology, specifically a leak-proof fixing device for filter bags used in municipal solid waste incineration flue gas treatment. Background Technology

[0002] A municipal solid waste incineration flue gas filter bag is a filter element used in a municipal solid waste incineration flue gas treatment system. It is typically made of high-temperature and corrosion-resistant fiber materials, has a bag-like structure, and is installed in the incineration flue gas purification equipment. Its core function is to filter dust, particulate matter, and some harmful pollutants from the incineration flue gas. By intercepting solid impurities in the flue gas through the pores of the filter material, it ensures that the purified flue gas meets emission standards before being released. It is a key component in achieving flue gas purification and reducing pollutant emissions during the municipal solid waste incineration process.

[0003] In the process of treating flue gas from municipal solid waste incineration, filter bags are a key component for filtering pollutants from the flue gas. The sealing effect between the filter bag and the installation structure directly affects the quality of flue gas treatment. The fixing of the filter bag mainly relies on the tight fit between the filter bag's folded edges and the relevant installation components. Existing filter bag fixing devices mostly use simple mechanical clamping methods. In actual use, due to the vibration generated by the operation of the incineration equipment, the clamping force is prone to localized concentration, resulting in insufficient tightness between the filter bag's folded edges and the installation components. This makes it difficult to maintain a stable seal over a long period, leading to flue gas leakage and affecting the flue gas filtration effect. Summary of the Invention

[0004] The purpose of this utility model is to provide a leak-proof fixing device for flue gas filter bags from municipal solid waste incineration, so as to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides a leak-proof fixing device for filter bags of municipal solid waste incineration flue gas, including an mounting plate, an mounting ring fixedly mounted on the mounting plate, a fixing ring above the mounting ring, a pressure ring between the mounting ring and the fixing ring, a groove on the mounting ring, the pressure ring fitting into the groove, a tower-shaped spring, a return spring, and a damper fixedly mounted between the mounting ring and the pressure ring, the tower-shaped spring being narrower at the top and wider at the bottom, the tower-shaped spring being sleeved outside the return spring and the damper, the return spring being sleeved outside the damper, a first circular plate fixedly mounted at the bottom of the damper, a second circular plate being positioned below the first circular plate, multiple elastic elements being positioned between the first and second circular plates, and a filter bag folded edge being positioned between the mounting ring and the pressure ring.

[0006] Furthermore, the elastic element is shaped like a fan-shaped sheet and is inclined. Multiple elastic elements are evenly distributed along the circumference at the top of the second circular plate, forming a frustum-shaped structure.

[0007] Furthermore, a protective sleeve is fixedly installed between the fixed ring and the pressure ring, and the protective sleeve is fitted over the outside of the return spring and the damper.

[0008] Furthermore, a rubber layer is integrally formed on both the bottom surface of the pressure ring and the groove.

[0009] Furthermore, the bottom of the filter bag fold is connected to the filter bag body, the mounting plate is sleeved on the outer wall of the filter bag body, and the mounting ring is fixedly installed on the top of the mounting plate.

[0010] Furthermore, the top of the fixing ring is threaded with multiple fixing bolts, and the fixing ring is fixedly connected to the mounting ring by the fixing bolts. The top of the fixing bolts is hinged with a gripping ring.

[0011] Furthermore, the plurality of fixing bolts are arranged in an equidistant ring at the top of the fixing ring.

[0012] Furthermore, the elastic element is made of spring steel.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, the operator places the filter bag folded edge between the groove of the mounting ring and the pressure ring, and tightens the fixing ring and the mounting ring with fixing bolts. The fixing ring presses down, causing the pressure ring to move towards the groove, compressing the tower-shaped spring, the return spring, and the damper. The tower-shaped spring gradually and evenly distributes the pressure, while protecting and guiding the internal return spring and damper. The return spring is sleeved on the outside of the damper. The two work together, and the damper absorbs vibration energy. The first circular plate at the bottom of the damper moves, and the fan-shaped elastic element deforms, further dispersing and buffering the pressure, ensuring that the filter bag folded edge is evenly and stably pressed. The multi-layer structure makes the filter bag folded edge fit tightly with the mounting ring and the pressure ring, preventing flue gas leakage and ensuring high filtration efficiency.

[0014] 2. In this utility model, multiple fixing bolts are threadedly connected to the top of the fixing ring and fixed to the mounting ring. The pressure of the fixing ring on the pressure ring can be precisely adjusted by tightening the bolts, ensuring that the filter bag folds are stably pressed. The threaded connection of the bolts makes the connection between the fixing ring and the mounting ring firm and reliable, and it is not easy to loosen due to equipment vibration or flue gas impact. The hinged grip ring on the top of the fixing bolt makes it easy for the operator to manually tighten the bolt. Installation, disassembly or pressure adjustment can be completed without additional tools, improving the convenience of operation and adapting to the maintenance needs in actual working conditions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the fixing ring and the fixing bolt in this utility model; Figure 3This is a schematic diagram of the connection structure between the reset spring and the damper in this utility model; Figure 4 for Figure 1 Enlarged view of the structure at point A in the middle.

[0016] In the diagram: 1. Mounting plate; 2. Filter bag body; 3. Filter bag folded edge; 4. Mounting ring; 5. Fixing ring; 6. Pressure ring; 7. Tower-shaped spring; 8. Return spring; 9. Damper; 10. First circular plate; 11. Second circular plate; 12. Elastic element; 13. Protective sleeve; 14. Fixing bolt. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-4 This utility model provides a technical solution: See Figures 1-4 As shown, the leak-proof fixing device for filter bags in municipal solid waste incineration flue gas includes an mounting plate 1, an mounting ring 4 fixedly mounted on the mounting plate 1, a fixing ring 5 above the mounting ring 4, a pressure ring 6 between the mounting ring 4 and the fixing ring 5, a groove on the mounting ring 4, the pressure ring 6 fitting into the groove, a tower-shaped spring 7, a return spring 8, and a damper 9 fixedly mounted between the mounting ring 4 and the pressure ring 6, the tower-shaped spring 7 being narrower at the top and wider at the bottom, the tower-shaped spring 7 being sleeved outside the return spring 8 and the damper 9, the return spring 8 being sleeved outside the damper 9, a first circular plate 10 fixedly mounted at the bottom of the damper 9, a second circular plate 11 being positioned below the first circular plate 10, multiple elastic elements 12 being positioned between the first circular plate 10 and the second circular plate 11, and a filter bag folded edge 3 being positioned between the mounting ring 4 and the pressure ring 6.

[0019] When fixing and sealing the filter bags for municipal solid waste incineration flue gas, the folded edge 3 of the filter bag is placed between the groove of the mounting ring 4 and the pressure ring 6. The fixing ring 5 is connected to the mounting ring 4 and tightened using the fixing bolts 14. The fixing ring 5 presses down, causing the pressure ring 6 to move into the groove of the mounting ring 4. During this process, the tower spring 7, the return spring 8, and the damper 9 are compressed.

[0020] Due to its narrow-at-the-top and wide-at-the-bottom structure, the tower-shaped spring 7 can gradually and evenly distribute pressure from top to bottom when compressed. Simultaneously, it is sleeved outside the return spring 8 and damper 9, providing protection and guidance for the internal return spring 8 and damper 9. The return spring 8, sleeved outside the damper 9, works in conjunction with the damper 9 when compressed. The damper 9 absorbs vibration energy during compression through its own damping characteristics, while the return spring 8 provides elastic restoring force. The first circular plate 10 at the bottom of the damper 9 moves accordingly, causing multiple fan-shaped, inclined elastic elements 12 to deform. The elastic elements 12 are evenly distributed along the circumference at the top of the second circular plate 11, forming a frustum-shaped structure, further dispersing and buffering pressure, ensuring that the filter bag fold 3 is evenly and stably pressed between the mounting ring 4 and the pressure ring 6. The multi-layered buffering and pressure dispersion effects of the tower-shaped spring 7, the return spring 8, the damper 9, and the elastic element 12 ensure a tight fit between the filter bag fold 3 and the mounting ring 4 and the pressure ring 6, effectively preventing the leakage of flue gas from the connection point and ensuring the high efficiency of flue gas filtration.

[0021] See Figure 3 The elastic element 12 is shaped like a fan and is inclined. Multiple elastic elements 12 are evenly distributed along the circumference on the top of the second circular plate 11, forming a frustum-shaped structure.

[0022] The elastic element 12 is fan-shaped and inclined. Multiple elements are evenly distributed along the circumference on the top of the second circular plate 11 to form a frustum-shaped structure. When the first circular plate 10 is pressed down, the pressure is evenly distributed through its inclined fan-shaped structure, so that the filter bag fold 3 is subjected to more even force and avoids excessive local pressure that could damage the filter bag fold 3.

[0023] See Figure 3 A protective sleeve 13 is fixedly installed between the fixed ring 5 and the pressure ring 6. The protective sleeve 13 is sleeved on the outside of the return spring 8 and the damper 9.

[0024] The protective sleeve 13 is installed outside the return spring 8 and the damper 9. It can prevent dust and corrosive substances in the flue gas of municipal solid waste incineration from directly contacting the return spring 8 and the damper 9, avoiding their failure due to corrosion and wear. At the same time, it can provide physical protection for the return spring 8 and the damper 9, preventing them from being displaced or damaged due to vibration and other factors during equipment operation, ensuring the normal operation of the return spring 8 and the damper 9, and thus ensuring the sealing effect and service life of the filter bag fixing device.

[0025] See Figure 2 The bottom surface of the pressure ring 6 and the groove are integrally formed with a rubber layer.

[0026] The rubber layer on the bottom surface of the pressure ring 6 and the groove can increase the sealing between the pressure ring 6 and the filter bag fold 3 and the mounting ring 4, preventing flue gas leakage. At the same time, the rubber layer is elastic, which can buffer the pressure and prevent the filter bag fold 3 from being damaged due to hard contact. It can also reduce the wear between the pressure ring 6 and the mounting ring 4 and extend the service life of the components.

[0027] See Figure 4 The bottom of the filter bag fold 3 is connected to the filter bag body 2, the mounting plate 1 is sleeved on the outer wall of the filter bag body 2, and the mounting ring 4 is fixedly installed on the top of the mounting plate 1.

[0028] The bottom of the filter bag fold 3 is connected to the filter bag body 2, allowing the filter bag body 2 to be stably fixed through the filter bag fold 3. The mounting plate 1 is sleeved on the outer wall of the filter bag body 2, which can provide lateral limit and support for the upper part of the filter bag body 2, preventing the filter bag body 2 from shifting or shaking when flue gas flows or equipment vibrates. The mounting ring 4 is fixed on the top of the mounting plate 1, so that the mounting ring 4 has a stable mounting support, ensuring that the force of the subsequent pressure ring 6 and various elastic components can be accurately transmitted to the filter bag fold 3, further improving the fit between the filter bag body 2 and the mounting structure, ensuring the sealing effect, and reducing the wear of the filter bag body 2 caused by uneven force, adapting to the actual working conditions of municipal solid waste incineration flue gas treatment.

[0029] See Figure 2 The top of the retaining ring 5 is threaded with multiple retaining bolts 14. The retaining ring 5 is fixedly connected to the mounting ring 4 by the retaining bolts 14. The top of the retaining bolts 14 is hinged with a gripping ring.

[0030] Multiple fixing bolts 14 are threaded onto the top of the fixing ring 5 and fix it to the mounting ring 4. The pressure of the fixing ring 5 on the pressure ring 6 can be precisely adjusted by tightening the bolts, ensuring that the filter bag fold 3 is stably pressed. The threaded connection of the bolts makes the connection between the fixing ring 5 and the mounting ring 4 firm and reliable, and it is not easy to loosen due to equipment vibration or flue gas impact. The hinged grip ring on the top of the fixing bolt 14 makes it easy for the operator to manually tighten the bolt. Installation, disassembly or pressure adjustment can be completed without additional tools, improving the convenience of operation and adapting to the maintenance needs in actual working conditions.

[0031] See Figure 2 Multiple fixing bolts 14 are arranged in an equidistant ring on the top of the fixing ring 5.

[0032] Multiple fixing bolts 14 are arranged in an equidistant ring on the top of the fixing ring 5, which can make the force on the fixing ring 5 and the corresponding connecting parts more uniform, avoid deformation or loosening caused by excessive local force, improve the stability of the connection part, and at the same time, the ring layout can increase the fixing range and make the fixing effect more reliable.

[0033] See Figure 3 The elastic element 12 is made of spring steel.

[0034] The elastic element 12 is made of spring steel, which has good elasticity and toughness. It can quickly return to its original shape after being subjected to force, and can stably play a buffering or resetting role. At the same time, spring steel has high strength and can withstand repeated deformation and force, and is not easy to break or permanently deform, thus extending the service life of the elastic element 12.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A leak-proof fixing device for flue gas filter bags from municipal solid waste incineration, comprising an mounting plate (1), characterized in that: An mounting ring (4) is fixedly mounted on the mounting plate (1). A fixing ring (5) is provided above the mounting ring (4). A pressure ring (6) is provided between the mounting ring (4) and the fixing ring (5). A groove is provided on the mounting ring (4). The pressure ring (6) is adapted to the groove. A tower spring (7), a return spring (8), and a damper (9) are fixedly mounted between the mounting ring (4) and the pressure ring (6). The tower spring (7) is designed to be narrow at the top and wide at the bottom. The tower-shaped spring (7) is sleeved on the outside of the return spring (8) and the damper (9). The return spring (8) is sleeved on the outside of the damper (9). A first circular plate (10) is fixedly installed at the bottom of the damper (9). A second circular plate (11) is provided below the first circular plate (10). A plurality of elastic elements (12) are provided between the first circular plate (10) and the second circular plate (11). A filter bag fold (3) is provided between the mounting ring (4) and the pressure ring (6).

2. The leak-proof fixing device for flue gas filter bags from municipal solid waste incineration as described in claim 1, characterized in that: The elastic element (12) is shaped like a fan and is inclined. Multiple elastic elements (12) are evenly distributed along the circumference on the top of the second circular plate (11) to form a frustum-shaped structure.

3. The leak-proof fixing device for flue gas filter bags from municipal solid waste incineration as described in claim 2, characterized in that: A protective sleeve (13) is fixedly installed between the fixed ring (5) and the pressure ring (6), and the protective sleeve (13) is sleeved on the outside of the reset spring (8) and the damper (9).

4. The leak-proof fixing device for flue gas filter bags from municipal solid waste incineration as described in claim 3, characterized in that: The bottom surface and groove of the pressure ring (6) are integrally formed with a rubber layer.

5. The leak-proof fixing device for flue gas filter bags from municipal solid waste incineration as described in claim 4, characterized in that: The bottom of the filter bag fold (3) is connected to the filter bag body (2), the mounting plate (1) is sleeved on the outer wall of the filter bag body (2), and the mounting ring (4) is fixedly installed on the top of the mounting plate (1).

6. The leak-proof fixing device for flue gas filter bags from municipal solid waste incineration as described in claim 5, characterized in that: The top of the fixing ring (5) is threaded with multiple fixing bolts (14), and the fixing ring (5) is fixedly connected to the mounting ring (4) by the fixing bolts (14). The top of the fixing bolts (14) is hinged with a gripping ring.

7. The leak-proof fixing device for flue gas filter bags from municipal solid waste incineration as described in claim 6, characterized in that: Multiple fixing bolts (14) are arranged in an equidistant ring on the top of the fixing ring (5).

8. The leak-proof fixing device for flue gas filter bags from municipal solid waste incineration as described in claim 7, characterized in that: The elastic element (12) is made of spring steel.

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