Efficient desulfurization cloth bag dust removal equipment
Through a unique bag cage structure design, and utilizing a magnetic connection and locking mechanism, the filter bags of the bag filter dust collector can be replaced quickly, solving the problem of complex filter bag replacement in traditional equipment and improving the maintenance efficiency and operational stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI ZHONGYIHE ENVIRONMENTAL ENG CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-19
AI Technical Summary
The filter bag replacement operation of traditional baghouse dust collectors is complicated and time-consuming, resulting in long downtime, which affects production efficiency and increases costs.
It adopts a unique bag cage structure design, which uses magnetic connection and locking structure to achieve quick disassembly and installation of bag cage through external drive mechanism, simplifying the replacement process.
It improves the efficiency of filter bag replacement, reduces equipment downtime, lowers maintenance costs, and enhances production efficiency and equipment stability.
Smart Images

Figure CN224252361U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of environmental protection equipment technology, and in particular to a high-efficiency desulfurization bag filter dust collector. Background Technology
[0002] In industrial production processes, industries such as coal-fired power generation and steel smelting generate a large amount of sulfur-containing waste gas and dust, which are usually treated by two continuous processes: desulfurization and dust removal.
[0003] Filter bags, as the filtration components of baghouse dust collectors, need to be replaced regularly to ensure dust removal efficiency. However, replacing filter bags in traditional equipment is extremely complex, often requiring the disassembly of numerous parts, consuming significant manpower and time. Maintenance personnel must work within the confined space inside the equipment during filter bag replacement, which is not only difficult but also time-consuming. During this period, the equipment cannot operate normally, leading to production interruptions, severely impacting equipment efficiency, and increasing production costs for the enterprise. Therefore, developing a baghouse dust collector that can be maintained efficiently to improve overall efficiency is of significant practical importance. Utility Model Content
[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a high-efficiency desulfurization bag filter dust collector to solve the problems mentioned in the background art.
[0005] To achieve the above technical objectives, the present invention provides a high-efficiency desulfurization bag filter dust collector, comprising: a base, on which a housing and an ash hopper are mounted, the ash hopper being located below and communicating with the housing; a tube sheet is mounted inside the housing, and a bag cage is mounted on the tube sheet; an air blowing nozzle is positioned above the bag cage and directly opposite it; the bag cage includes a cage head and a cage body; the cage head is fixedly mounted on the upper surface of the tube sheet; a positioning ring is mounted on the lower surface of the tube sheet; a support ring is mounted on the top of the cage body; a positioning post is mounted on the inner ring surface of the support ring; a positioning groove is mounted on the positioning ring to cooperate with the positioning post; a plurality of lower magnets are arranged in a circular array on the upper plate surface of the support ring, with two adjacent lower magnets having opposite polarities; an annular retainer is rotatably mounted at the lower end of the cage head, and a plurality of upper magnets are arranged in a circular array on the annular retainer, with two adjacent upper magnets having opposite polarities; and a telescopic mechanism is mounted on the tube sheet, which drives the annular retainer to rotate.
[0006] Furthermore, the positioning ring is provided with a locking ring and a tension spring. The locking ring is rotatably connected to the positioning ring on the same axis. The two ends of the tension spring are respectively connected to the positioning ring and the locking ring. The locking ring is provided with a locking groove that cooperates with the positioning post. The locking ring is driven by an annular retainer to make the locking groove and the positioning groove intersect.
[0007] Furthermore, the locking ring is provided with a push post, the lower end of the cage head is provided with an arc-shaped through hole adapted to the push post, the upper end of the push post passes through the arc-shaped through hole, and the inner ring surface of the annular retainer is provided with a push rod that cooperates with the push post.
[0008] Furthermore, the telescopic mechanism includes a telescopic rod, a support seat is provided on the tube sheet, the telescopic rod is slidably mounted on the support seat and one end passes through the box body, a strip ring and a spring are provided on the telescopic rod, the two ends of the spring are respectively connected to the telescopic rod and the support seat, and a connecting column is provided on the annular retainer, the connecting column is slidably held in the strip ring.
[0009] Furthermore, an arc-shaped guide groove is provided on the annular retainer between two adjacent upper magnets, a guide post is provided at the lower end of the cage, and the upper end of the guide post passes through the guide groove and is provided with a limit nut.
[0010] Compared with the prior art, the beneficial effects of this utility model include:
[0011] 1. This utility model, through its unique bag cage structure design, utilizes a combination of magnetic connection and locking structure. When the bag cage needs to be replaced, simply push the telescopic rod through the external drive mechanism to rotate the annular retainer, change the relative state of the magnetic poles to generate repulsive force, and unlock the locking structure. This allows for quick disassembly of the bag cage, simplifying the replacement process, reducing equipment downtime, lowering maintenance costs, and improving production efficiency. It brings great convenience to the maintenance of dust removal equipment in industrial production.
[0012] 2. The bag cage of this utility model is initially positioned by positioning posts and positioning grooves, then initially fixed by magnetic connection structure, and finally firmly locked by locking structure. Multiple fixing methods ensure the stability of the connection between the bag cage and the tube sheet. At the same time, the cooperation between the arc-shaped guide groove and the guide post ensures the stability of the rotation of the ring cage and avoids its deviation from affecting the magnetic connection and locking effect. These structures work together to effectively prevent the bag cage from falling off due to vibration, airflow impact and other factors during operation, ensuring the long-term stable operation of the equipment and improving the dust removal effect and equipment reliability. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of a high-efficiency desulfurization bag filter dust collector provided by this utility model;
[0014] Figure 2 This is a schematic diagram of the bag cage of a high-efficiency desulfurization bag filter dust collector provided by this utility model; Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0016] Reference Figure 1 This utility model provides a high-efficiency desulfurization bag filter dust collector, including a base 1, a housing 2 and an ash hopper 3 disposed on the base 1, the ash hopper 3 being located below the housing 2 and communicating with the housing 2. A tube sheet 4 is disposed inside the housing 2, a bag cage 5 is installed on the tube sheet 4, and an air blowing nozzle 6 is disposed above the bag cage 5 and facing it.
[0017] To facilitate the replacement of bag cage 5, refer to Figure 2 The cage 5 consists of a cage head 501 and a cage body 502. The cage head 501 is fixedly installed on the upper surface of the tube sheet 4, and a positioning ring 507 is provided on the lower surface of the tube sheet 4. A support ring 503 is provided on the top of the cage body 502. A positioning post 508 is provided on the inner ring surface of the support ring 503, and a positioning groove 509 that cooperates with the positioning post 508 is provided on the positioning ring 507.
[0018] The upper plate of the support ring 503 has a circumferential array of several lower magnets 504, and two adjacent lower magnets 504 have opposite polarities. The lower end of the cage head 501 is provided with an annular retainer 505, and the annular retainer 505 has a circumferential array of several upper magnets 506, and two adjacent upper magnets 506 also have opposite polarities. An arc-shaped guide groove 516 is provided on the annular retainer 505 between two adjacent upper magnets 506. The lower end of the cage head 501 is provided with a guide post 517, and the upper end of the guide post 517 passes through the guide groove 516 and is provided with a limit nut to restrict the annular retainer 505 thereon.
[0019] During installation, align the positioning post 508 at the top of the cage 502 with the positioning groove 509 on the positioning ring 507 on the lower surface of the tube sheet 4, so that the positioning post 508 is inserted into the positioning groove 509. The positioning groove 509 ensures that the adjacent sides of the two facing upper / lower magnets have opposite polarities. After the cage 502 is initially positioned and installed, the upper magnet 506 and the lower magnet 504 attract each other through magnetic force, so that the cage 502 is pressed and fixed to the lower surface of the tube sheet 4. When replacing the cage 502, simply rotate the annular retainer 505 to change the upper magnet 506 that is facing the lower magnet 504. Under the action of magnetic repulsion, the cage 502 can be detached.
[0020] A support base 401 is provided on the tube sheet 4, and a telescopic rod 7 is slidably mounted on the support base 401, with one end of the telescopic rod 7 passing through the housing 2. A ring 701 and a spring 702 are provided on the telescopic rod 7, with both ends of the spring 702 connected to the telescopic rod 7 and the support base 401 respectively. A connecting post 515 is provided on the annular retainer 505, and the connecting post 515 is slidably held within the ring 701. Pushing the telescopic rod 7 from outside the housing 2 will unlock the cage bodies 502 in the same row.
[0021] To ensure a more stable connection of the cage body 502 and prevent it from falling off during operation, a locking ring 509 and a tension spring 512 are provided inside the positioning ring 507. The locking ring 509 and the positioning ring 507 are coaxially rotatably connected, and the two ends of the tension spring 512 are connected to the positioning ring 507 and the locking ring 509, respectively. The locking ring 509 is provided with a locking groove 510 that mates with the positioning post 508. In the initial state, the locking groove 510 is aligned with the positioning groove 509. When the positioning post 508 of the cage body 502 is inserted into the positioning groove 509, it pushes the locking ring 509 to rotate, causing the positioning post 508 to enter the locking groove 510. The locking ring 509 then resets under the action of the tension spring 512, and the locking groove 510 and the positioning groove 509 lock the positioning post 508.
[0022] A push pin 511 is provided on the locking ring 509, and an arc-shaped through hole 513 adapted to the push pin 511 is provided at the lower end of the cage head 501. The upper end of the push pin 511 passes through the arc-shaped through hole 513. A push rod 514 that cooperates with the push pin 511 is provided on the inner ring surface of the annular retainer 505. When the cage body 502 is replaced, the annular retainer 505 is driven to rotate, and the push rod 514 on the annular retainer 505 pushes the push pin 511. The push pin 511 drives the locking ring 509 to rotate, so that the locking groove 510 and the positioning groove 509 are interleaved, causing the positioning pin 508 to disengage from the lock. At the same time, under the action of magnetic repulsion, the positioning pin 508 disengages from the positioning groove 509.
[0023] This utility model's high-efficiency desulfurization bag filter dust collector, through the combination of the aforementioned unique bag cage structure, magnetic connection structure, locking structure, telescopic mechanism, and guiding structure, achieves rapid installation and disassembly of the bag cage 5, improving equipment maintenance efficiency while ensuring equipment operational stability.
[0024] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.
Claims
1. A high-efficiency desulfurization baghouse dust collector, comprising a base, a housing and an ash hopper mounted on the base, the ash hopper being located below and communicating with the housing, a tube sheet being mounted inside the housing, bag cages being mounted on the tube sheet, and an air blowing nozzle being mounted above and directly opposite the bag cages, characterized in that: The cage includes a cage head and a cage body. The cage head is fixedly mounted on the upper surface of the perforated plate. A positioning ring is provided on the lower surface of the perforated plate. A support ring is provided on the top of the cage body. A positioning post is provided on the inner ring surface of the support ring. A positioning groove that cooperates with the positioning post is provided on the positioning ring. Several lower magnets are arranged in a circular array on the upper plate surface of the support ring. The polarities of two adjacent lower magnets are opposite. An annular retainer is rotatably mounted at the lower end of the cage head. Several upper magnets are arranged in a circular array on the annular retainer. The polarities of two adjacent upper magnets are opposite. A telescopic mechanism is provided on the perforated plate. The telescopic mechanism drives the annular retainer to rotate.
2. The high-efficiency desulfurization bag filter dust collector according to claim 1, characterized in that: The positioning ring is provided with a locking ring and a tension spring. The locking ring is rotatably connected to the positioning ring on the same axis. The two ends of the tension spring are respectively connected to the positioning ring and the locking ring. The locking ring is provided with a locking groove that cooperates with the positioning post. The locking ring is driven by the annular retainer to make the locking groove and the positioning groove intersect.
3. The high-efficiency desulfurization bag filter dust collector according to claim 2, characterized in that: The locking ring is provided with a push post, the lower end of the cage is provided with an arc-shaped through hole adapted to the push post, the upper end of the push post passes through the arc-shaped through hole, and the inner ring surface of the annular retainer is provided with a push rod that cooperates with the push post.
4. The high-efficiency desulfurization bag filter dust collector according to claim 3, characterized in that: The telescopic mechanism includes a telescopic rod, a support seat is provided on the tube sheet, the telescopic rod is slidably mounted on the support seat and one end passes through the box body, a strip ring and a spring are provided on the telescopic rod, the two ends of the spring are respectively connected to the telescopic rod and the support seat, and a connecting post is provided on the annular retainer, the connecting post is slidably held in the strip ring.
5. The high-efficiency desulfurization bag filter dust collector according to claim 4, characterized in that: An arc-shaped guide groove is provided on the annular retainer between two adjacent upper magnets, and a guide post is provided at the lower end of the cage head. The upper end of the guide post passes through the guide groove and is provided with a limit nut.