A cloth bag dry filter structure

Abstract

The utility model discloses a cloth bag dry -type filter structure, including air inlet end shell and air outlet end shell, be provided with filter assembly between air inlet end shell and air outlet end shell, filter assembly is used for installing filter bag and realizes filter function, the utility model relates to dry -type filter equipment technical field, specifically, relate to a cloth bag dry -type filter structure, adopt air inlet end shell, filter assembly, air outlet end shell's three -segment type basic structure, split filter assembly into the modular structure of first box and second box, realize detachable connection through bolt lock, this design strengthens structural stability, guarantees the convenience of equipment assembly, maintenance and part replacement simultaneously, based on the extensibility of modular design, can add same type box between first box and second box, forms multibox series connection structure, can expand filter assembly's length and filter area, can increase filter unit number according to actual demand flexibly.

Description

Technical Field

[0001] This utility model relates to the technical field of dry filter equipment, and more specifically, to a bag dry filter structure. Background Technology

[0002] In many fields such as industrial production and environmental protection, gas filtration equipment is one of the key pieces of equipment for ensuring production safety and improving environmental quality. Currently, similar gas filtration equipment on the market has many problems. Some equipment lacks dedicated filter components, and the overall structural design is unreasonable, resulting in non-standard filtration processes and poor filtration effects. Traditional filtration equipment is limited by high temperatures during filtration, and excessively high exhaust temperatures can damage the filter bags. This increases the risk of bag clogging; prolonged neglect of cleaning leads to increased resistance. Furthermore, the integrated structure makes assembly, maintenance, and component replacement extremely inconvenient. Replacing the filter media or inspecting the internal components often requires disassembling the entire filter assembly, which is not only time-consuming and labor-intensive but also impacts the equipment's operational efficiency.

[0003] Meanwhile, the installation of filter bags lacks a stable and suitable support structure. Traditional fixing brackets are not adjustable and cannot accommodate filter bags of different sizes, easily leading to filter bag misalignment and filtration failure. Moreover, fixing brackets are difficult to maintain; once damaged, the entire bracket may need to be replaced, increasing equipment maintenance costs.

[0004] In terms of filtration methods, most equipment uses a single filter bag for filtration, which "blocks both large and small particles," easily leading to low filtration efficiency. Furthermore, high-efficiency filter bags need to be replaced frequently due to excessive load, which not only increases consumable expenses but also affects the continuous operation of the equipment. Utility Model Content

[0005] The technical problem this utility model aims to solve is to provide a bag filter structure that adopts a three-section basic structure consisting of an inlet end shell, a filter assembly, and an outlet end shell. The filter assembly is divided into a modular structure of a first housing and a second housing, which are detachably connected by bolts. This design enhances structural stability while ensuring the convenience of equipment assembly, maintenance, and component replacement. Based on the scalability of the modular design, similar housings can be added between the first and second housings to form a multi-housing series structure. By repeatedly stacking standardized modules, the length and filtration area of ​​the filter assembly can be expanded, and the number of filter units can be flexibly increased according to actual needs.

[0006] A bag filter structure includes an inlet end housing and an outlet end housing, with a filter assembly disposed between the inlet end housing and the outlet end housing. The filter assembly is used to install a filter bag to achieve the filtration function.

[0007] By adopting a three-section structural design consisting of an inlet shell, a filter assembly, and an outlet shell, a basic process framework for gas filtration is constructed. The inlet shell introduces the gas to be filtered, the filter assembly carries the filter medium (filter bag), and the outlet shell outputs the purified gas, forming a complete purification chain of "inlet, filtration, and outlet".

[0008] The filter assembly includes a first housing and a second housing, which are arranged sequentially and connected by bolts. The first housing is connected to the outlet housing by bolts, and the second housing is connected to the inlet housing by bolts. A first filter bag mounting bracket is fixedly provided at one end of the first housing corresponding to the inlet housing, and a second filter bag mounting bracket is fixedly provided at one end of the second housing corresponding to the inlet housing.

[0009] The system employs a modular design with separate first and second housings, allowing for detachable connections via bolt fastening. Dedicated filter bag mounting brackets are installed within the housings corresponding to the air intake direction. This modular structure facilitates assembly, maintenance, and component replacement. The mounting brackets provide stable support for the filter bags, ensuring they are stably stressed during gas flow. Bolt fastening enhances structural stability while maintaining detachability, addressing the issue of inconvenient filter component maintenance. The first and second filter bag mounting brackets facilitate filter bag installation, ensuring precise alignment between the filter bag and the gas flow path and preventing filter failure due to bag misalignment.

[0010] The first filter bag mounting bracket includes a first horizontal bracket and a first vertical bracket. There are several first horizontal brackets and first vertical brackets, which are arranged in a checkerboard pattern. The first horizontal brackets and first vertical brackets are locked together by bolts and nuts.

[0011] The first filter bag mounting bracket adopts a checkerboard arrangement of horizontal and vertical brackets, which are locked together with bolts and nuts to form a grid structure. The grid structure can evenly distribute the force on the filter bag and avoid excessive local stress that could cause the filter bag to break. The detachable connection facilitates the adjustment, replacement or maintenance of the bracket. The checkerboard structure provides multi-point uniform support for the filter bag, adapts to filter bags of different sizes, ensures that the filter bag is fully unfolded and the filtration area is maximized, and the bolt and nut connection method allows for flexible assembly and disassembly of the bracket, solving the problem of traditional fixed brackets being unable to be adjusted or difficult to maintain.

[0012] The second filter bag mounting bracket includes a second horizontal bracket and a second vertical bracket. There are several of the second horizontal bracket and the second vertical bracket, which are arranged in a checkerboard pattern. The second horizontal bracket and the second vertical bracket are locked together by bolts and nuts.

[0013] The second filter bag mounting bracket also adopts a checkerboard grid structure and detachable connection. The grid support principle is the same as that of the first bracket, ensuring the stable installation of the filter bag near the air inlet end, realizing the stability and uniformity of the filter bag installation in the second housing, and forming a complete filter support system with the first bracket.

[0014] An opening is provided on one side of the first housing, and a first side door bracket is fixedly installed at the opening. The first side door bracket is locked to the first side door by bolts. The first side door matches the opening, and a sealing ring is provided between the first side door and the opening.

[0015] An opening and side door are provided in the first chamber. The side door is detachably connected by a bracket and bolts. A sealing ring is installed between the side door and the opening. The side door design enables access to the interior of the chamber, facilitating filter bag replacement, cleaning, or maintenance. The sealing ring compensates for gaps with elastic sealing to prevent unfiltered gas from leaking from the opening, solving the problem of inconvenient maintenance inside the chamber. The side door can be opened quickly without disassembling the entire chamber, greatly improving maintenance efficiency. The sealing ring ensures the airtightness of the chamber, preventing unfiltered gas from leaking from the opening gaps and improving filtration efficiency.

[0016] The second housing has an opening on one side, and a second side door bracket is fixedly installed at the opening. The second side door bracket is bolted to the second side door, which matches the opening. A sealing ring is provided between the second side door and the opening. This allows for convenient maintenance of the second housing. In conjunction with the side door of the first housing, the front and rear sections of the entire filter assembly can be opened independently for maintenance, covering the entire installation area of ​​the filter bag.

[0017] Other first and second boxes can also be set between the first box and the second box.

[0018] Based on the scalability of modular design, similar boxes can be added between the first and second boxes to form a multi-box series structure. By repeatedly stacking standardized modules, the length and filtration area of ​​the filter components can be expanded to adapt to scenarios with larger processing volumes or higher filtration requirements, improving the flexibility and adaptability of the equipment. The number of filter units can be increased according to actual needs (such as the degree of gas pollution and the processing volume) without redesigning the overall structure. This reduces equipment upgrade costs, enhances functionality through modular expansion, avoids the need for complete equipment replacement due to changes in demand, and extends the equipment's lifespan.

[0019] An inefficient filter bag is installed on the second filter bag mounting bracket corresponding to the air inlet housing. The filter bags installed on the second filter bag mounting bracket and the first filter bag mounting bracket gradually increase their filtration efficiency from the air inlet housing to the air outlet housing.

[0020] The system employs a "gradient filtration" strategy, sequentially installing low-efficiency, medium-efficiency, and high-efficiency filter bags from the air inlet to the air outlet (with filtration efficiency gradually increasing). The low-efficiency filter bags first intercept large particles, reducing the load on the subsequent high-efficiency filter bags and preventing them from clogging prematurely and requiring frequent replacement. This extends the overall filtration system's lifespan, optimizes the filtration process, and improves overall filtration efficiency through tiered filtration. Large particles are intercepted first, while small particles are handled by the high-efficiency filter bags. This avoids the inefficiency caused by a single filter bag "intercepting both large and small particles," reducing maintenance costs. The low-efficiency filter bags are also less expensive, and their replacement frequency is distinct from that of the high-efficiency filter bags.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are: The system adopts a three-section basic structure consisting of an air inlet shell, a filter assembly, and an air outlet shell. The filter assembly is divided into a modular structure of a first housing and a second housing, which are detachably connected by bolts. This design enhances structural stability while ensuring the convenience of equipment assembly, maintenance, and component replacement. When maintenance of the filter assembly is required, it is not necessary to disassemble the entire equipment; simply loosen the bolts between the corresponding housings. This significantly reduces the difficulty of maintenance. Both the first and second filter bag mounting brackets adopt a checkerboard arrangement of horizontal and vertical brackets, and are locked with bolts and nuts to form a grid structure. This grid structure can provide multi-point uniform support for the filter bag, ensuring that the filter bag is fully unfolded and the filtration area is maximized. It avoids filtration failure caused by filter bag displacement. At the same time, it evenly distributes the force on the filter bag, prevents excessive local stress from causing filter bag damage, and ensures the stability of the filtration effect. The first and second chambers each have openings and side doors. A sealing ring is installed between the side door and the opening. The sealing ring compensates for the gap through elastic sealing, effectively preventing unfiltered gas from leaking from the opening, ensuring the airtightness of the chamber, guaranteeing the uniqueness of the filtration path, and improving filtration efficiency. The side door is fastened with bolts and can be opened quickly, allowing for filter bag replacement, cleaning, or maintenance without disassembling the entire chamber. Based on the scalability of modular design, the same type of box can be added between the first box and the second box to form a multi-box series structure. By repeatedly stacking standardized modules, the length and filtration area of ​​the filter components can be expanded. The number of filter units can be flexibly increased according to actual needs, such as the degree of gas pollution and the processing volume, without redesigning the overall structure, so that the equipment can adapt to different application scenarios. A gradient filtration strategy is adopted, with low-efficiency, medium-efficiency, and high-efficiency filter bags installed sequentially from the air inlet to the air outlet. The filtration efficiency gradually increases. Large particulate impurities are intercepted first by the low-efficiency filter bag, which reduces the load on the subsequent high-efficiency filter bag and avoids frequent replacement of the high-efficiency filter bag due to premature clogging, thus extending the service life of the overall filtration system. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. Obviously, the drawings described below are merely some embodiments of this utility model, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1 The three-dimensional representation of this utility model Figure 1 ; Figure 2 A three-dimensional cross-section of this utility model Figure 1 ; Figure 3 A three-dimensional cross-section of this utility model Figure 2 .

[0023] In the diagram: 1. First housing; 2. Second housing; 3. Inlet housing; 4. Second side door; 5. Second side door bracket; 6. First side door; 7. First side door bracket; 8. Outlet housing; 9. Connecting flange; 10. First horizontal bracket; 11. First vertical bracket; 12. Second vertical bracket; 13. Second horizontal bracket. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments: A bag filter structure includes an inlet housing 3 and an outlet housing 8. A filter assembly is disposed between the inlet housing 3 and the outlet housing 8. The filter assembly is used to install a filter bag to achieve the filtration function.

[0025] The filter assembly includes a first housing 1 and a second housing 2, which are arranged sequentially and are fastened together by bolts. The first housing 1 is fastened to the air outlet housing 8 by bolts, and the second housing 2 is fastened to the air inlet housing 3 by bolts. A first filter bag mounting bracket is fixedly provided at one end of the first housing 1 corresponding to the air inlet housing 3, and a second filter bag mounting bracket is fixedly provided at one end of the second housing 2 corresponding to the air inlet housing 3.

[0026] The first filter bag mounting bracket includes a first horizontal bracket 10 and a first vertical bracket 11. There are several first horizontal brackets 10 and first vertical brackets 11, which are arranged in a checkerboard pattern. The first horizontal brackets 10 and first vertical brackets 11 are locked together by bolts and nuts.

[0027] The second filter bag mounting bracket includes a second horizontal bracket 13 and a second vertical bracket 12. There are several of the second horizontal bracket 13 and the second vertical bracket 12, which are arranged in a checkerboard pattern. The second horizontal bracket 13 and the second vertical bracket 12 are locked together by bolts and nuts.

[0028] Furthermore, an opening is provided on one side of the first housing 1, and a first side door bracket 7 is fixedly installed at the opening. The first side door bracket 7 is locked to the first side door 6 by bolts. The first side door 6 matches the opening, and a sealing ring is provided between the first side door 6 and the opening.

[0029] The second housing 2 has an opening on one side, and a second side door bracket 5 is fixedly installed at the opening. The second side door bracket 5 is locked to the second side door 4 by bolts. The second side door 4 matches the opening, and a sealing ring is provided between the second side door 4 and the opening.

[0030] Other first boxes 1 and second boxes 2 can also be set between the first box 1 and the second box 2.

[0031] An inefficient filter bag is installed on the second filter bag mounting bracket corresponding to the air inlet housing 3. The filter bags installed on the second filter bag mounting bracket and the first filter bag mounting bracket gradually increase their filtration efficiency from the air inlet housing 3 to the air outlet housing 8.

[0032] The method of using this utility model is as follows: First, place the air inlet housing 3 and the air outlet housing 8 in a suitable position to ensure their stability. Then, connect the second housing 2 to the air inlet housing 3 with bolts, and connect the first housing 1 to the air outlet housing 8 with bolts. Then, connect the first housing 1 and the second housing 2 with bolts to complete the assembly of the filter assembly and the housing. According to the actual filtration requirements, if it is necessary to add a filter unit, a housing of the same type can be added between the first housing 1 and the second housing 2 and fixedly connected with bolts. Open the side doors of the first housing 1 and the second housing 2, and install the inefficient filter bag on the second filter bag mounting bracket corresponding to the air inlet housing 3. Following the direction from the air inlet housing 3 to the air outlet housing 8, install the remaining second filter bags... Medium-efficiency and high-efficiency filter bags are sequentially installed on the filter bag mounting bracket and the first filter bag mounting bracket, ensuring that the filter bags are firmly installed and precisely matched with the gas flow path. After installation, the side door is closed, and the side door is locked to the side door bracket with bolts to ensure that the sealing ring between the side door and the opening is tightly fitted, ensuring the airtightness of the chamber. The gas to be filtered is introduced into the inlet end shell 3. After the gas enters from the inlet end shell 3, it first enters the second chamber 2 and undergoes preliminary filtration through the low-efficiency filter bag on the second filter bag mounting bracket, intercepting large particulate impurities. Subsequently, the gas undergoes further filtration through the filter bags on the remaining second filter bag mounting brackets and the first filter bag mounting bracket, removing smaller particulate impurities. The purified gas is output through the outlet end shell 8, completing the entire filtration process. The above-disclosed embodiments are only specific embodiments of this utility model. However, this utility model is not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of this utility model.

Claims

1. A bag filter structure, comprising an inlet end housing (3) and an outlet end housing (8), characterized in that, A filter assembly is provided between the air inlet housing (3) and the air outlet housing (8), and the filter assembly is used to install a filter bag to achieve the filtration function; The filter assembly includes a first housing (1) and a second housing (2), which are arranged in sequence. The first housing (1) and the second housing (2) are connected by bolts. The first housing (1) is connected to the air outlet shell (8) by bolts, and the second housing (2) is connected to the air inlet shell (3) by bolts. A first filter bag mounting bracket is fixedly provided at one end of the first housing (1) corresponding to the air inlet shell (3), and a second filter bag mounting bracket is fixedly provided at one end of the second housing (2) corresponding to the air inlet shell (3). The first filter bag mounting bracket includes a first horizontal bracket (10) and a first vertical bracket (11). There are several first horizontal brackets (10) and first vertical brackets (11), and they are arranged in a checkerboard pattern. The first horizontal brackets (10) and first vertical brackets (11) are fastened together by bolts and nuts. The second filter bag mounting bracket includes a second horizontal bracket (13) and a second vertical bracket (12). There are several of the second horizontal bracket (13) and the second vertical bracket (12), and they are arranged in a checkerboard pattern. The second horizontal bracket (13) and the second vertical bracket (12) are locked together by bolts and nuts.

2. The bag filter structure according to claim 1, characterized in that: An opening is provided on one side of the first housing (1), and a first side door bracket (7) is fixedly provided at the opening. The first side door bracket (7) is connected to the first side door (6) by bolts. The first side door (6) matches the opening, and a sealing ring is provided between the first side door (6) and the opening.

3. The bag filter structure according to claim 2, characterized in that: An opening is provided on one side of the second housing (2), and a second side door bracket (5) is fixedly provided at the opening. The second side door bracket (5) is connected to the second side door (4) by bolts. The second side door (4) matches the opening, and a sealing ring is provided between the second side door (4) and the opening.

4. The bag filter structure according to claim 1, characterized in that: Other first boxes (1) and second boxes (2) can also be set between the first box (1) and the second box (2).

5. The bag filter structure according to claim 3, characterized in that: An inefficient filter bag is installed on the second filter bag mounting bracket corresponding to the air inlet housing (3). The filter bags installed on the second filter bag mounting bracket and the first filter bag mounting bracket gradually increase their filtration efficiency from the air inlet housing (3) to the air outlet housing (8).

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