A bag filter injection device for high-performance aluminum-silicon alloy regeneration process production

Abstract

The utility model discloses a cloth bag dust collector injection device for high-performance aluminum-silicon alloy regeneration process production belongs to cloth bag dust collector technical field, including flow injection pipe, flow injection pipe one end is detachably connected with cabin, and the other end socket connection has the elbow pipe, and the elbow pipe far from flow injection pipe one end intercommunication has the vertical pipe, and the vertical pipe top penetrates the cover of cabin and intercommunication has the injection gas bag, vertical pipe bottom socket connection with elbow pipe. The utility model uses modularization design, and the structure of injection pipe is innovated and optimized. The welding position of easy fracture between vertical pipe and cabin cover is replaced by socket connection, and the collision friction is reduced, and the fracture risk is reduced. When maintaining and replacing, it is simple to operate, does not need open fire, eliminates hidden danger, completes quickly, reduces the influence on production and economic loss.

Description

Technical Field

[0001] This utility model belongs to the technical field of baghouse dust collectors, and in particular relates to a jet cleaning device for a baghouse dust collector used in the production of high-performance aluminum-silicon alloy regeneration processes. Background Technology

[0002] Dust is generated in various processes related to the production of cast aluminum alloys, such as the remelting and casting of high-performance aluminum-silicon alloys for automotive bodies, the casting of pure aluminum to semi-pure aluminum alloy ingots, low-energy melting of cast aluminum alloys, and intelligent production of cast aluminum alloy ingots. Baghouse dust collectors play a crucial role in dust removal, and the performance and maintenance of their blowpipes directly affect the overall operation of the dust removal system, thus significantly impacting the continuity of cast aluminum alloy production, cost control, and product quality.

[0003] Pulse jet baghouse dust collectors are widely used due to their high dust removal efficiency. Their core component, the blowpipe, plays a crucial role in backflushing high-pressure airflow into the filter bags, achieving the dust removal function. However, with prolonged operation, corrosive gases present within the dust collector chamber continuously corrode the blowpipe. Especially at the welded joints between the vertical blowpipe and the chamber, corrosion and fracture frequently occur due to long-term exposure to the harsh environment and the influence of the reverse gas force.

[0004] Because the environment where dust collectors are located is usually designated as a no-hotspot zone with numerous flammable materials nearby, traditional welding repair methods are difficult to implement directly. To complete the repair work, a series of complex and stringent fire prevention measures must be taken, which not only greatly increases the difficulty of repairs but also significantly extends the repair cycle and results in extremely low efficiency. More seriously, the repair work must be carried out while the furnace is shut down, which causes a drop in furnace temperature and a significant increase in gas consumption, resulting in substantial economic losses for the company.

[0005] In summary, existing pulse jet cleaning systems for baghouse dust collectors used in high-performance aluminum-silicon alloy regeneration processes have significant drawbacks in terms of ease of maintenance, severely restricting the stable operation of the equipment and the production efficiency of enterprises. Therefore, developing a new type of pulse jet cleaning system for baghouse dust collectors that is easy to maintain and requires no hot work is an urgent practical need and has significant application value. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model proposes a jet cleaning device for a bag filter dust collector used in the production of high-performance aluminum-silicon alloy regeneration process.

[0007] To achieve the above objectives, this utility model provides a jet cleaning device for a bag filter dust collector used in the production of high-performance aluminum-silicon alloy regeneration processes. The device is installed inside the dust collector chamber and includes: a uniform flow jet pipe, one end of which is detachably connected to the chamber, and the other end of which is connected to a bent pipe. The end of the bent pipe away from the uniform flow jet pipe is connected to a vertical pipe. The top of the vertical pipe penetrates the cover plate of the chamber and is connected to a jet air manifold. The bottom of the vertical pipe is connected to the bent pipe.

[0008] Preferably, both ends of the bend are respectively fitted with the vertical pipe or the flow equalization jet pipe with a clearance, and the gaps between the bend and the vertical pipe, and between the bend and the flow equalization jet pipe, are sealed by a sealing structure.

[0009] Preferably, the sealing structure includes a sealing ring, which is fixed to the outer sides of both ends of the bend; when installing the bend, the sealing ring is interference-fitted with the vertical pipe or the flow equalization jet pipe.

[0010] Preferably, the outer radial direction of the sealing ring away from the vertical pipe or the flow equalization jet pipe gradually increases.

[0011] Preferably, the depth to which the bent pipe is inserted into the vertical pipe or the flow equalization jet pipe is in the range of 50-200mm.

[0012] Preferably, the sealing structure further includes a wedge, the outer wall of which is fixed to the inner wall of the vertical pipe or the flow equalization jet pipe, and an hourglass-shaped through hole is provided in the wedge. When the bent pipe is inserted into the vertical pipe or the flow equalization jet pipe, the sealing ring at the end of the bent pipe abuts against the inclined side wall of the through hole of the wedge.

[0013] Preferably, a first flange is fixedly connected to the outer side of the elbow and the vertical pipe socket connection, and the first flange is bolted to the cover plate of the compartment.

[0014] Preferably, a second flange is fixedly connected to the outer side of the bend near the flow equalization jet pipe, and a third flange is fixedly connected to the outer side of the flow equalization jet pipe near the bend, with the second flange and the third flange being fastened together by bolts.

[0015] Compared with the prior art, the present invention has the following advantages and technical effects:

[0016] This application innovatively optimizes the blowpipe structure by adopting a modular design concept. The welded area between the vertical pipe and the compartment cover, which is prone to breakage, is specifically disassembled and replaced with a socket connection. This measure effectively reduces collision and friction between the vertical pipe and the compartment at this point due to airflow impact, thus significantly reducing the risk of breakage. In actual use, if a breakage does occur, the socket connection makes maintenance and replacement simple and easy, eliminating the need for open flame operations and completely eliminating fire safety hazards. The entire maintenance and replacement process is quick and efficient, greatly reducing the impact on production operations and effectively minimizing economic losses caused by blowpipe maintenance. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a schematic diagram of the jet cleaning device for a bag filter used in the high-performance aluminum-silicon alloy recycling process of this utility model.

[0019] Figure 2 This is a partial cross-sectional view of the pulse-jet cleaning device for a bag filter used in the high-performance aluminum-silicon alloy regeneration process of this utility model.

[0020] Figure 3 for Figure 2 Enlarged view of A in the middle;

[0021] Figure 4 for Figure 2 A magnified view of B in the middle.

[0022] In the diagram: 1. Compartment; 2. Flow equalization jet pipe; 3. Bend; 4. Vertical pipe; 5. Jet air manifold; 6. Sealing ring; 7. Wedge block; 8. First flange; 9. Second flange; 10. Third flange. Detailed Implementation

[0023] 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.

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Reference Figures 1 to 4 As shown, this embodiment provides a jet cleaning device for a bag filter dust collector used in the production of high-performance aluminum-silicon alloy regeneration process. It is installed in the chamber 1 of the dust collector and includes: a uniform flow jet pipe 2, one end of which is detachably connected to the chamber 1, and the other end of which is connected to a bend pipe 3. The end of the bend pipe 3 away from the uniform flow jet pipe 2 is connected to a vertical pipe 4. The top of the vertical pipe 4 penetrates the cover plate of the chamber 1 and is connected to a jet air manifold 5; the bottom of the vertical pipe 4 is connected to the bend pipe 3.

[0026] This application innovatively optimizes the structure of the blowpipe by adopting a modular design concept. The welded area between the vertical pipe 4 and the cover plate of compartment 1, which is prone to breakage, is specifically disassembled and replaced with a socket connection. This measure effectively reduces collision and friction between the vertical pipe 4 and compartment 1 at this point due to airflow impact and other factors, thus significantly reducing the risk of breakage. In actual use, if a breakage occurs, the socket connection makes maintenance and replacement simple and easy, eliminating the need for open flame operations and completely eliminating fire safety hazards. The entire maintenance and replacement process is quick and efficient, greatly reducing the impact on production operations and effectively minimizing economic losses caused by blowpipe maintenance.

[0027] The scheme is further optimized so that the two ends of the bend 3 are respectively fitted with the vertical pipe 4 or the flow equalization jet pipe 2 with a gap, and the gaps between the bend 3 and the vertical pipe 4, and between the bend 3 and the flow equalization jet pipe 2 are sealed by a sealing structure.

[0028] During installation, the elbow 3 is connected to the vertical pipe 4 and the flow equalization jet pipe 2 using a clearance fit. This design greatly facilitates the insertion and connection of the elbow 3, effectively improving installation efficiency. Since a clearance fit inevitably creates gaps, sealing structures are installed at the connections between the elbow 3 and the vertical pipe 4, and between the elbow 3 and the flow equalization jet pipe 2, to prevent air leakage and ensure the airtightness of the entire jet pipe system. This sealing structure tightly fills the gaps, forming a reliable sealing barrier, ensuring the airtightness of the entire jet pipe system, maintaining stable airflow within the system, guaranteeing the normal operation of the jet pipes, and preventing a decrease in dust removal efficiency and other potential problems caused by air leakage.

[0029] The design is further optimized. The sealing structure includes a sealing ring 6, which is fixed to the outer sides of both ends of the bend 3. When installing the bend 3, the sealing ring 6 is interference-fitted with the vertical pipe 4 or the flow equalization jet pipe 2.

[0030] The sealing ring 6 is preferably made of fluororubber due to its excellent deformation capacity and corrosion resistance. During installation, the sealing ring 6 is in an interference fit with the vertical pipe 4 or the flow equalization jet pipe 2. When the jet pipe is in operation, the fluororubber sealing ring 6 is compressed and deformed, tightly filling the gaps between the bend 3 and the vertical pipe 4, and between the bend 3 and the flow equalization jet pipe 2. This effectively prevents gas leakage from the gaps, ensures stable airflow within the jet pipe system, and provides a reliable sealing guarantee for the efficient operation of the jet cleaning device of the bag filter used in the high-performance aluminum-silicon alloy regeneration process, thereby improving the overall stability and performance of the equipment.

[0031] Further optimization of the scheme involves gradually increasing the outer radial direction of the sealing ring 6 away from the vertical pipe 4 or the flow equalization jet pipe 2.

[0032] The sealing ring 6 features a special design where its outer radial diameter gradually increases away from the vertical pipe 4 or the flow equalization jet pipe 2. The relatively small diameter at the head of the sealing ring 6 is a significant advantage during the installation of the bend 3. When aligning the end of the bend 3 with the connection end of the vertical pipe 4 or the flow equalization jet pipe 2, the smaller head of the sealing ring 6 allows for smoother insertion, effectively reducing installation difficulty and improving assembly efficiency. After the sealing ring 6 is aligned with the vertical pipe 4 or the flow equalization jet pipe 2, as it is further inserted, the gradually increasing diameter of the sealing ring 6, under the interference fit, allows for a tighter fit against the pipe wall at the connection point, further enhancing the sealing effect. This provides a solid guarantee for the airtightness of the jet pipe system, ensuring the stable and efficient operation of the entire bag filter jet cleaning unit used in the high-performance aluminum-silicon alloy regeneration process.

[0033] Further optimization of the scheme: the depth of the bend 3 inserted into the vertical pipe 4 or the flow equalization jet pipe 2 is within the range of 150-200mm.

[0034] In the structural design of the pulse-jet cleaning device for baghouse dust collectors used in high-performance aluminum-silicon alloy regeneration processes, the insertion depth of the bent pipe 3 into the vertical pipe 4 or the flow equalization jet pipe 2 is precisely set within the range of 150-200mm. Extensive practical experience and professional testing have verified that this depth range achieves optimal working results. When the bent pipe 3 is inserted at this depth, it first ensures a stable connection between the bent pipe 3, the vertical pipe 4, and the flow equalization jet pipe 2, effectively resisting the airflow impact and mechanical vibration generated during the pulse-jet process, and preventing gas leakage or component damage due to loose connections. Secondly, this insertion depth also provides good operability during installation and maintenance, facilitating precise assembly and subsequent maintenance work by personnel, thereby improving overall work efficiency and reducing operational difficulty.

[0035] Further optimization of the scheme includes a wedge 7 in the sealing structure. The outer wall of the wedge 7 is fixed to the inner wall of the vertical pipe 4 or the flow equalization jet pipe 2. An hourglass-shaped through hole is provided in the wedge 7. When the bent pipe 3 is inserted into the vertical pipe 4 or the flow equalization jet pipe 2, the sealing ring 6 at the end of the bent pipe 3 abuts against the inclined side wall of the through hole of the wedge 7.

[0036] The hourglass-shaped through-hole ensures smooth airflow on both sides of the wedge 7, without affecting airflow transmission within the blowpipe system. Furthermore, when the bend 3 is inserted into the vertical pipe 4 or the equalizing blowpipe 2, the inclined surface of the through-hole near the sealing ring 6 precisely matches the inclined surface of the sealing ring 6. As the insertion depth of the bend 3 increases, the sealing ring 6 becomes increasingly tightly fitted under the action of the wedge 7, continuously enhancing the sealing effect and forming an extremely tight sealing area. This not only significantly improves the airtightness of the blowpipe system, ensuring stable and efficient airflow transmission, but also further enhances the stability of the entire blowpipe structure, providing a solid and reliable guarantee for the stable operation of the bag filter.

[0037] The scheme was further optimized, with a first flange 8 fixedly connected to the outer side of the bend 3 and the vertical pipe 4 through a socket connection. The first flange 8 is bolted to the cover plate of the compartment 1.

[0038] The first flange 8 is firmly fixed to the outside of the bend 3. Its design purpose is to achieve precise positioning and stable support of the bend 3 by bolting it to the cover plate of the compartment 1. During actual installation and operation, when the first flange 8 is tightly connected to the cover plate of the compartment 1 using bolts, it not only firmly fixes the end of the bend 3 near the vertical pipe 4, effectively preventing displacement of the bend 3 due to airflow impact and other factors during the jetting process, but also ensures the stability of the jetting pipe system structure. Simultaneously, during the bolt tightening operation, a compressive force is generated towards the wedge block 7. This force is transmitted to the sealing ring 6 at the end of the bend 3, causing the sealing ring 6 and the wedge block 7 to fit more tightly. This tight fit greatly enhances the sealing effect, forming a more airtight sealing area at the connection between the bend 3 and the vertical pipe 4, further improving the airtightness of the jetting pipe system. This ensures stable and efficient airflow transmission within the system, providing a reliable guarantee for the long-term stable operation of the jetting device for baghouse dust collectors used in high-performance aluminum-silicon alloy regeneration processes.

[0039] The scheme is further optimized by fixing a second flange 9 to the outer side of the bend 3 near the flow equalization jet pipe 2, and fixing a third flange 10 to the outer side of the flow equalization jet pipe 2 near the bend 3. The second flange 9 and the third flange 10 are fastened together by bolts.

[0040] The second flange 9 and the third flange 10 are fastened together with bolts, achieving a tight connection between the bend 3 and the flow equalization jet pipe 2. As the bolts are gradually tightened, the second flange 9 and the third flange 10 fit tightly together, thereby firmly connecting the bend 3 and the flow equalization jet pipe 2. This effectively prevents loosening due to airflow impact during jetting operations, ensuring the overall stability of the jet pipe structure. More importantly, as the bolt tightening operation progresses, the sealing ring 6 at the end of the bend 3 will fit increasingly tightly with the wedge 7 under the transmission of the connecting force. The tighter the fit between the sealing ring 6 and the wedge 7, the better the sealing effect on the gap between the bend 3 and the flow equalization jet pipe 2, forming a more airtight sealing area at the connection. This greatly improves the airtightness of the jet pipe system, ensuring stable and efficient airflow transmission throughout the system. This lays a solid foundation for the long-term stable operation of the jetting device for baghouse dust collectors used in high-performance aluminum-silicon alloy regeneration processes, effectively guaranteeing the stable dust removal efficiency of the dust collector.

[0041] Any aspects of this utility model that are not detailed herein are conventional technical means known to those skilled in the art.

[0042] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A pulse-jet cleaning device for a bag filter used in the production of high-performance aluminum-silicon alloys through recycling processes, installed inside the chamber (1) of the dust collector, characterized in that, include: A flow equalization jet pipe (2) is provided. One end of the flow equalization jet pipe (2) is detachably connected to the compartment (1), and the other end is connected to a bend pipe (3). The end of the bend pipe (3) away from the flow equalization jet pipe (2) is connected to a vertical pipe (4). The top of the vertical pipe (4) passes through the cover plate of the compartment (1) and is connected to a jetting air bag (5). The bottom of the vertical pipe (4) is connected to the bend pipe (3).

2. The pulse-jet cleaning device for a bag filter used in the production of high-performance aluminum-silicon alloy regeneration processes according to claim 1, characterized in that: The two ends of the bend (3) are respectively fitted with the vertical pipe (4) or the flow equalization jet pipe (2) with a gap, and the gap between the bend (3) and the vertical pipe (4), and between the bend (3) and the flow equalization jet pipe (2) is sealed by a sealing structure.

3. The pulse-jet cleaning device for a bag filter used in the production of high-performance aluminum-silicon alloy regeneration processes according to claim 2, characterized in that: The sealing structure includes a sealing ring (6), which is fixed to the outer sides of both ends of the bend (3); when the bend (3) is installed, the sealing ring (6) is interference-fitted with the vertical pipe (4) or the flow equalization jet pipe (2).

4. The pulse-jet cleaning device for a bag filter used in the production of high-performance aluminum-silicon alloy regeneration processes according to claim 3, characterized in that: The outer radial direction of the sealing ring (6) gradually increases away from the vertical pipe (4) or the flow equalization jet pipe (2).

5. The pulse-jet cleaning device for a bag filter used in the production of high-performance aluminum-silicon alloys via regeneration process, as described in claim 1, is characterized in that: The depth to which the bent pipe (3) is inserted into the vertical pipe (4) or the flow equalization jet pipe (2) is in the range of 150-200 mm.

6. The pulse-jet cleaning device for a bag filter used in the production of high-performance aluminum-silicon alloy regeneration processes according to claim 4, characterized in that: The sealing structure also includes a wedge (7), the outer wall of which is fixed to the inner wall of the vertical pipe (4) or the flow equalization jet pipe (2). The wedge (7) has an hourglass-shaped through hole. When the bent pipe (3) is inserted into the vertical pipe (4) or the flow equalization jet pipe (2), the sealing ring (6) at the end of the bent pipe (3) abuts against the inclined side wall of the through hole of the wedge (7).

7. The pulse-jet cleaning device for a bag filter used in the production of high-performance aluminum-silicon alloy regeneration processes according to claim 1, characterized in that: The outer side of the bend (3) and the vertical pipe (4) is fixedly connected with a first flange (8), and the first flange (8) is bolted to the cover plate of the compartment (1).

8. The pulse-jet cleaning device for a bag filter used in the production of high-performance aluminum-silicon alloys via regeneration process, as described in claim 1, is characterized in that: A second flange (9) is fixedly connected to the outer side of the bend (3) near the flow equalization jet pipe (2), and a third flange (10) is fixedly connected to the outer side of the flow equalization jet pipe (2) near the bend (3). The second flange (9) and the third flange (10) are fastened together by bolts.

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