Anti-corrosion high-temperature-resistant environment-friendly filter cartridge for filter cartridge type dust collector

Abstract

The utility model relates to the technical field of filter cartridge type dust removers, discloses an anti-corrosion high-temperature-resistant environment-friendly filter cartridge for a filter cartridge type dust remover, and solves the problems that a traditional filter cartridge type dust remover is inconvenient to maintain and low in filtering efficiency. The environment-friendly filter cartridge is mainly composed of a base, a first filter barrel, a second filter barrel, pleated filter paper and the like, the base is in threaded connection with the first filter barrel, a guide sliding groove in a fixing ring is matched with a positioning clamping jaw on the outer wall of a ring seat, the positioning clamping jaw slides in the guide sliding groove, and a top cover is composed of a movable disc and a positioning disc. An insertion pin is arranged on the inner wall of the top end of the positioning disc and is in insertion fit with a limiting pin on the outer wall of a fixing ring to limit the displacement of the second filtering barrel between the first filtering barrels, so that the maintenance convenience is further improved, and meanwhile, large particles and fine dust are effectively filtered by utilizing different filtering mechanisms of rhombic holes, circular holes and pleated filter paper; and the dust removal efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the technical field of cartridge dust collectors, specifically a corrosion-resistant, high-temperature resistant, and environmentally friendly cartridge for cartridge dust collectors. Background Technology

[0002] In industrial production, especially in welding and chemical industries, large amounts of smoke and dust are generated, posing a serious threat to the environment and worker health, making dust collectors indispensable equipment. Currently, cartridge dust collectors are widely used due to their compact structure and high-efficiency filtration performance. Their core component, the filter cartridge, comes in various materials and structural forms, including combinations of filter barrels and filter paper made of different materials. However, existing cartridge dust collectors generally suffer from short service life and inconvenient cleaning. Most are disposable products, and frequent replacements not only increase factory maintenance costs and workload but also lack effective means to combat smoke and dust corrosion, making it difficult to meet long-term, stable environmental dust removal requirements.

[0003] A Chinese patent with publication number CN222239352U discloses a corrosion-resistant and environmentally friendly filter cartridge for a cartridge dust collector. The cartridge includes a base, filter paper, a first filter barrel (stainless steel), a second filter barrel (polypropylene), a sealing ring, a top cover, a fixing ring, and a positioning block. The positioning block contains a positioning mechanism comprising a moving rod, a positioning rod, and a tension spring. During use, pulling the moving rod moves the positioning rod to the left, disengaging it from the top cover. The top cover can then be removed to take out the first and second filter barrels for cleaning. After cleaning, they can be put back in place. The filter paper and filter barrels work together to enhance the corrosion resistance of the filter cartridge. During filtration, dust-laden gas is filtered through the filter paper and the double-layered filter barrels, achieving purification. However, this filter cartridge is complex to maintain due to its numerous and tightly connected components, making troubleshooting and repair difficult. Furthermore, dirt is difficult to remove from the gaps between the filter paper and filter barrels during cleaning, and reassembly requires high precision.

[0004] In response to the aforementioned technologies, a corrosion-resistant, high-temperature-resistant, and environmentally friendly filter cartridge for cartridge dust collectors is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this utility model is to provide a corrosion-resistant, high-temperature resistant, and environmentally friendly filter cartridge for cartridge dust collectors. By using this device, the problems of inconvenient maintenance and low filtration efficiency of traditional cartridge dust collectors can be solved.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant, high-temperature resistant, and environmentally friendly filter cartridge for a cartridge dust collector, comprising a base, an outer ring and an inner ring fixedly mounted on the base, a first filter barrel screwed onto the outer ring of the base, a fixing ring fixedly mounted on the other end of the first filter barrel, a guide groove with an irregular opening structure opened on the fixing ring, a ring seat movably fitted onto the guide groove, at least three sets of limiting pins for fixing the position of the ring seat fixedly mounted on the outer wall of the fixing ring, a second filter barrel fixedly connected to the bottom center of the ring seat, the other end of the second filter barrel inserted into the inner ring of the base, a threaded hole opened in the center of the ring seat, a top cover screwed onto the threaded hole, and pleated filter paper fixedly mounted between the first filter barrel and the second filter barrel.

[0007] Preferably, the ring seat has a convex shape.

[0008] Preferably, at least three positioning claws are fixedly provided on the outer wall of the ring seat. The positioning claws have a mountain-shaped structure and are slidably disposed on the guide groove.

[0009] Preferably, the top cover consists of a movable plate and a positioning plate. The movable plate is movably connected to the positioning plate. A concave connecting end cap is fixedly installed in the middle of the movable plate. The concave connecting end cap has an internally hollow structure. The other end of the concave connecting end cap is screwed to the threaded hole of the ring seat. The positioning plate consists of an outer clamping plate, an inner clamping ring, and pins. The outer clamping plate is sleeved on the outer wall of the fixed ring. At least three pins are fixedly installed at equal intervals on the inner wall of the top of the positioning plate. The pins are engaged with the limiting pins. An inner clamping ring is fixedly installed on the inner wall of the top of the positioning plate. The inner clamping ring is located on the side of the pins away from the outer clamping plate. The inner clamping ring is movably fitted between the fixed ring and the ring seat.

[0010] Preferably, the inner wall of the fixing ring abuts against the outer wall of the ring seat.

[0011] Preferably, the first filter barrel has diamond-shaped holes, and the second filter barrel has circular holes.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model proposes a corrosion-resistant, high-temperature resistant, and environmentally friendly filter cartridge for cartridge dust collectors. In terms of equipment maintenance, the base and the first filter barrel are connected by screws. The irregularly shaped open guide groove on the fixed ring cooperates with the positioning claw on the ring seat, making operation simple and smooth, and enabling quick separation and connection of the ring seat and the fixed ring. The movable plate of the top cover is screwed to the threaded hole of the ring seat through a concave connecting end cap. The pins of the positioning plate engage with the limit pin on the fixed ring, and the inner retaining ring is movably fitted between the fixed ring and the ring seat. These connection methods make the disassembly and installation of the top cover very convenient, greatly reducing maintenance difficulty, reducing reliance on professional maintenance personnel, lowering maintenance costs, and thus improving the ease of use of the equipment.

[0014] 2. This utility model proposes a corrosion-resistant, high-temperature-resistant, and environmentally friendly filter cartridge for a cartridge dust collector. In terms of filtration performance, the first and second filter cartridges are tightly connected by a ring seat. The diamond-shaped holes on the first filter cartridge and the circular holes on the second filter cartridge work together, clearly defining the division of labor between preliminary and fine filtration. The pleated filter paper fixed in the middle, utilizing its special fiber material and structure, forms a complete and efficient filtration system with the first and second filter cartridges, effectively improving the overall dust removal effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the second filter barrel structure of this utility model;

[0017] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 4 This is a schematic diagram of the top cover structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the pleated filter paper structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the guide groove structure of this utility model.

[0021] In the diagram: 1. Base; 101. Outer ring; 102. Inner ring; 11. First filter barrel; 12. Second filter barrel; 13. Pleated filter paper; 2. Fixing ring; 20. Guide groove; 21. Limiting pin; 3. Ring seat; 30. Threaded hole; 31. Positioning claw; 4. Top cover; 41. Movable plate; 42. Positioning plate; 421. Outer retaining plate; 422. Inner retaining ring; 423. Pin; 43. Recessed connecting end cap. 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. 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.

[0023] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0024] Combination Figures 1-6 A corrosion-resistant, high-temperature-resistant, and environmentally friendly filter cartridge for cartridge dust collectors mainly includes a base 1, a first filter barrel 11, a second filter barrel 12, pleated filter paper 13, a fixing ring 2, a ring seat 3, and a top cover 4. An outer ring 101 and an inner ring 102 are fixedly mounted on the base 1. The outer ring 101 of the base 1 is screwed to the first filter barrel 11. This threaded connection facilitates the installation and disassembly of the first filter barrel 11, making subsequent maintenance and replacement easier and improving maintenance convenience. The first filter barrel 11 has diamond-shaped holes. After dust-laden gas enters, it can effectively achieve inertial separation based on the dust particle size sieving principle, initially intercepting larger dust particles. These large dust particles settle to the bottom of the dust collector under the combined action of gravity and airflow, completing the initial filtration. A fixing ring 2 is fixedly mounted at the other end of the first filter barrel 11. The fixing ring 2 has a guide groove 20 with an irregularly shaped opening structure, and at least three sets of limiting pins 21 are fixedly mounted on its outer wall. The guide groove 20 and the ring seat 3 are movably fitted together. The ring seat 3 has a convex structure. This structural design allows the ring seat 3 to slide stably on the guide groove 20 while ensuring connection strength, thus enhancing the overall structural stability. At least three mountain-shaped positioning claws 31 are fixedly installed on the outer wall of the ring seat 3. The positioning claws 31 are slidably mounted on the guide groove 20 to ensure accurate positioning of the ring seat 3 during sliding, facilitating installation and disassembly.

[0025] A second filter barrel 12 is fixedly connected to the bottom center of the ring seat 3. The other end of the second filter barrel 12 is fitted onto the inner ring 102 of the base 1. The second filter barrel 12 has a circular hole. A pleated filter paper 13 is fixedly arranged between the first filter barrel 11 and the second filter barrel 12. The pleated filter paper 13, made of special fiber material, utilizes a dual mechanism of deep filtration and surface filtration. It not only relies on the sieving effect but also combines diffusion, interception, and inertial collision to intercept fine dust, achieving submicron-level fine filtration and greatly improving dust removal efficiency.

[0026] A threaded hole 30 is provided in the middle of the ring seat 3, and the threaded hole 30 is screwed to the top cover 4. The top cover 4 consists of a movable plate 41 and a positioning plate 42. The movable plate 41 is movably connected to the positioning plate 42. A hollow concave connecting end cap 43 is fixedly provided in the middle of the movable plate 41. The other end of the concave connecting end cap 43 is screwed to the threaded hole 30 of the ring seat 3, which facilitates the connection and separation of the top cover 4 and the ring seat 3. The positioning plate 42 consists of an outer retaining plate 421, an inner retaining ring 422, and pins 423. The outer retaining plate 421 is sleeved on the outer wall of the fixing ring 2. At least three pins 423 are fixedly arranged at equal intervals on the inner wall of the top of the positioning plate 42. The pins 423 are engaged with the limiting pins 21. The inner retaining ring 422 is fixedly arranged on the inner wall of the top of the positioning plate 42. The inner retaining ring 422 is located on the side of the pins 423 away from the outer retaining plate 421 and is movably fitted between the fixing ring 2 and the ring seat 3. This structural design ensures the stability of the top cover 4 under normal working conditions, while facilitating quick disassembly during maintenance, reducing equipment downtime and improving maintenance efficiency.

[0027] The inner wall of the fixed ring 2 abuts against the outer wall of the ring seat 3, further enhancing the sealing and stability of the overall structure, preventing gas leakage, and ensuring the efficient operation of the dust collector.

[0028] Working Principle: When dust-laden gas enters the cartridge dust collector, it first contacts the first filter cartridge 11. The surface of this cartridge is uniformly covered with a diamond-shaped perforated plate structure. Based on the principle of dust particle size sieving, it effectively achieves inertial separation, initially intercepting larger dust particles. These large dust particles settle to the bottom of the dust collector under the combined action of gravity and airflow, completing the initial filtration. The gas that has undergone initial filtration enters the annular filtration area formed by the first filter cartridge 11 and the second filter cartridge 12. This area is equipped with pleated filter paper 13. This filter paper uses a special fiber material and employs a dual mechanism of deep filtration and surface filtration, intercepting fine dust particles through the pores between the fibers. This mechanism not only relies on the sieving effect but also combines diffusion, interception, and inertial collision, resulting in extremely high filtration efficiency for fine dust, achieving sub-micron level fine filtration. The clean gas, after fine filtration, exits through the uniformly distributed circular through-holes on the surface of the second filter cartridge 12 and enters the subsequent purified gas collection system.

[0029] Regarding filter cartridge maintenance, when maintenance is required, first operate the movable disc 41 of the top cover 4. This movable disc 41 employs a movable connection design, with a recessed connecting end cap 43 at its center, which connects to the threaded hole 30 of the ring seat 3 via a precise threaded engagement. By rotating the movable disc 41, the recessed connecting end cap 43 can be separated from the threaded hole 30, releasing the fixed connection between the top cover 4 and the ring seat 3. Subsequently, pull the pin 423 on the positioning disc 42 out of the limiting pin 21 of the fixing ring 2, and push the positioning claw 31 on the outer wall of the ring seat 3, allowing it to slide within the guide groove 20 of the fixing ring 2 until it is completely disengaged. This separates the ring seat 3 and the second filter box 12, which are connected to the fixing ring 2 and the first filter box 11. Then, release the threaded connection between the first filter box 11 and the outer ring 101 of the base 1, completing the quick disassembly of the entire filter cartridge. This design greatly improves maintenance efficiency, reduces equipment downtime, and facilitates daily maintenance and repair of the equipment.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant, high-temperature resistant, and environmentally friendly filter cartridge for cartridge dust collectors, characterized in that: Includes a base (1), on which an outer ring (101) and an inner ring (102) are fixedly disposed. A first filter barrel (11) is screwed onto the outer ring (101) of the base (1). A fixing ring (2) is fixedly disposed at the other end of the first filter barrel (11). A guide groove (20) with an irregular opening structure is opened on the fixing ring (2). A ring seat (3) is movably fitted onto the guide groove (20). A fixed ring (3) is fixed on the outer wall of the fixing ring (2). At least three sets of limiting pins (21) for fixing the position of the ring seat (3) are provided. A second filter barrel (12) is fixedly connected to the middle of the bottom end of the ring seat (3). The other end of the second filter barrel (12) is inserted into the inner ring (102) of the base (1). A threaded hole (30) is opened in the middle of the ring seat (3). A top cover (4) is screwed onto the threaded hole (30). A pleated filter paper (13) is fixedly arranged between the first filter barrel (11) and the second filter barrel (12).

2. The corrosion-resistant, high-temperature resistant, and environmentally friendly filter cartridge for cartridge dust collectors according to claim 1, characterized in that: The ring seat (3) has a convex shape structure.

3. The corrosion-resistant, high-temperature resistant, and environmentally friendly filter cartridge for cartridge dust collectors according to claim 1, characterized in that: At least three positioning claws (31) are fixedly provided on the outer wall of the ring seat (3). The positioning claws (31) have a mountain-shaped structure and are slidably disposed on the guide groove (20).

4. The corrosion-resistant, high-temperature resistant, and environmentally friendly filter cartridge for cartridge dust collectors according to claim 1, characterized in that: The top cover (4) consists of a movable plate (41) and a positioning plate (42). The movable plate (41) is movably connected to the positioning plate (42). A concave connecting end cap (43) is fixedly provided in the middle of the movable plate (41). The concave connecting end cap (43) has a hollow internal structure. The other end of the concave connecting end cap (43) is screwed to the threaded hole (30) of the ring seat (3). The positioning plate (42) consists of an outer retaining plate (421), an inner retaining ring (422), and a pin (423). The outer clamping plate (421) is sleeved on the outer wall of the fixing ring (2). At least three pins (423) are fixedly arranged at equal intervals on the inner wall of the top of the positioning disk (42). The pins (423) are inserted and engaged with the limiting pins (21). An inner clamping ring (422) is fixedly arranged on the inner wall of the top of the positioning disk (42). The inner clamping ring (422) is located on the side of the pins (423) away from the outer clamping plate (421). The inner clamping ring (422) is movably fitted between the fixing ring (2) and the ring seat (3).

5. The corrosion-resistant, high-temperature resistant, and environmentally friendly filter cartridge for cartridge dust collectors according to claim 1, characterized in that: The inner wall of the fixed ring (2) abuts against the outer wall of the ring seat (3).

6. The corrosion-resistant, high-temperature resistant, and environmentally friendly filter cartridge for cartridge dust collectors according to claim 1, characterized in that: The first filter barrel (11) has diamond-shaped holes, and the second filter barrel (12) has circular holes.

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