A device for recovering antimony mouth dust in smelting antimony ingot
Patent Information
- Application Number
- CN202522080703.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-27
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-09-27
AI Technical Summary
针对现有技术的不足，本实用新型解决了在锑锭冶炼生产过程中，炉体出锑口会伴随大量烟尘逸散，这些烟尘中不仅含有锑粉、锑酸盐等有价金属成分，还夹杂着有害气体与细小粉尘，若未有效回收处理，既会造成资源浪费，又会污染周边环境，因此烟尘回收装置成为锑锭冶炼生产线的关键配套设备，然而，现有锑锭冶炼烟尘回收装置在实际应用中存在诸多技术痛点，在烟尘收集方面，传统装置多通过固定规格的烟筒直接抽吸烟尘，但出锑口产生的烟尘初始逸散状态分散，缺乏有效的气流引导结构，部分烟尘易从烟筒边缘侧逸，同时，现有装置的负压抽吸系统多为恒定功率运行，仅依靠单一风扇形成的吸力难以快速聚拢分散烟尘，导致大量烟尘未进入回收系统即向外扩散，且烟筒管口规格固定，适配性差，锑锭冶炼过程中，出锑口需根据锑液流出速度频繁调整开合大小，导致烟尘逸散量与逸散范围实时变化，但现有回收装置的烟筒管口半径为固定结构，无法随出锑口状态动态调节，当出锑口开合较小时，固定大口径管口会导致负压分散，造成电能浪费，当出锑口开合较大时，固定小口径管口则无法覆盖烟尘逸散范围，引发烟尘逃逸的技术问题
炉体在锑锭冶炼过程中产生的烟尘，受炉内压力作用向顶部流动并进入烟筒，烟筒内部固定的环形导流板发挥导向作用，通过倾斜板面结构将分散逸散的烟尘汇聚成集中气流，引导其向回收筒方向流动，为后续回收处理奠定基础，同时，启动第一伺服电机，其输出轴驱动底面的风扇高速旋转，在回收筒内形成负压环境，进一步增强对烟筒内烟尘的抽吸力度，加速烟尘进入回收系统，为适配出锑口开合大小变化导致的烟尘逸散量波动，启动第二伺服电机，带动输出轴连接的锥齿轮转动，由于锥齿轮与环形转动板外侧壁的齿轮盘相啮合，齿轮盘随锥齿轮转动，进而驱动环形转动板在环形安装架内滑动，环形转动板顶面六边形槽中安装的多个滑动板，受六边形槽侧壁的导向作用同步滑动，且滑动板顶面的限位杆沿环形安装架的限位槽滑动，确保滑动板稳定移动，通过滑动板的聚拢或分散，实现烟筒管口半径的缩小与扩大，使管口始终匹配烟尘逸散范围，避免负压浪费或烟尘逃逸，经过口径调节的烟尘气流进入回收筒后，先流经内筒内的两个密度不同的筛网，上层低密度筛网先拦截粒径较大的烟尘颗粒，下层高密度筛网进一步捕捉粒径较小的锑粉颗粒，实现烟尘的分级分离，分离后的气流继续向上流动，经过内筒内部顶面的空气过滤芯，其中残留的细微粉尘与有害气体被空气过滤芯吸附净化，最终，符合排放标准的洁净气体通过内筒与回收筒外侧壁的多个出气口排出，完成整个烟尘回收与净化过程。
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Figure CN224887683U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of antimony ingot smelting technology, and in particular to a device for recovering antimony ingot smelting flue dust. Background Technology
[0002] The antimony ingot smelting dust recovery device is a specialized environmental protection equipment applied to the pyrometallurgical process of antimony ingots. Targeting the critical dust emission point at the "antimony outlet" of the smelting furnace, it integrates modules for capture, conveying, separation, and collection to achieve efficient recovery and purification of high-temperature antimony-containing dust and harmful impurities. Its core purpose is to control the fugitive emissions of dust from the antimony outlet, reduce antimony resource loss, and simultaneously reduce the pollution of heavy metals (such as antimony, lead, and arsenic) and harmful gases in the dust to the health of operators and the surrounding environment.
[0003] During the antimony ingot smelting process, a large amount of smoke and dust escapes from the antimony outlet of the furnace. This smoke and dust not only contains valuable metal components such as antimony powder and antimonates, but also contains harmful gases and fine dust. If it is not effectively recovered and treated, it will not only waste resources, but also pollute the surrounding environment. Therefore, smoke and dust recovery devices have become a key supporting equipment for antimony ingot smelting production lines. However, existing antimony ingot smelting smoke and dust recovery devices have many technical pain points in practical applications. In terms of smoke and dust collection, traditional devices mostly directly extract smoke and dust through chimneys of fixed specifications. However, the initial dispersion of smoke and dust generated at the antimony outlet is scattered, lacking an effective airflow guiding structure. Some smoke and dust easily escapes from the edge of the chimney. At the same time, the negative pressure suction system of existing devices is mostly constant. Operating at a constant power, the suction force generated by a single fan is insufficient to quickly gather and disperse the smoke and dust, resulting in a large amount of smoke and dust spreading outwards without entering the recovery system. Furthermore, the fixed specifications of the chimney outlet have poor adaptability. During the antimony ingot smelting process, the opening and closing of the antimony outlet needs to be frequently adjusted according to the outflow rate of the antimony liquid, causing the amount and range of smoke and dust to change in real time. However, the existing recovery device has a fixed chimney outlet radius, which cannot be dynamically adjusted according to the state of the antimony outlet. When the opening and closing of the antimony outlet is small, the fixed large-diameter outlet will cause negative pressure dispersion, resulting in energy waste. When the opening and closing of the antimony outlet is large, the fixed small-diameter outlet cannot cover the smoke and dust dispersion range, causing smoke and dust to escape. In view of this, we propose an antimony ingot smelting outlet smoke and dust recovery device. Utility Model Content
[0004] Technical problems to be solved To address the shortcomings of existing technologies, this invention solves the problem of a large amount of smoke and dust escaping from the antimony outlet of the furnace during the antimony ingot smelting process. This smoke and dust not only contains valuable metal components such as antimony powder and antimonates, but also contains harmful gases and fine dust. If not effectively recovered and treated, it will not only waste resources but also pollute the surrounding environment. Therefore, smoke and dust recovery devices have become a key supporting equipment for antimony ingot smelting production lines. However, existing antimony ingot smelting smoke and dust recovery devices have many technical pain points in practical applications. In terms of smoke and dust collection, traditional devices mostly directly draw smoke and dust from a chimney of fixed specifications. However, the initial dispersion of smoke and dust generated at the antimony outlet is scattered, lacking an effective airflow guiding structure, and some smoke and dust easily escapes from the edge of the chimney. Furthermore, existing negative pressure suction systems mostly operate at constant power, and the suction force generated by a single fan is insufficient to quickly gather and disperse smoke and dust. This results in a large amount of smoke and dust spreading outwards before entering the recovery system. In addition, the specifications of the chimney pipe opening are fixed, resulting in poor adaptability. During the antimony ingot smelting process, the opening of the antimony outlet needs to be frequently adjusted according to the outflow rate of the antimony liquid, causing the amount and range of smoke and dust to change in real time. However, the radius of the chimney pipe opening in existing recovery devices is a fixed structure and cannot be dynamically adjusted according to the state of the antimony outlet. When the opening of the antimony outlet is small, the fixed large-diameter pipe opening will cause negative pressure dispersion, resulting in energy waste. When the opening of the antimony outlet is large, the fixed small-diameter pipe opening cannot cover the smoke and dust dispersion range, causing technical problems of smoke and dust escape.
[0005] Technical solution To achieve the above objectives, this utility model provides the following technical solution: A device for recovering antimony dust from the antimony ingot smelting outlet is applied to a furnace body. A chimney is fixedly installed on the top surface of the furnace body. The chimney is connected to the interior of the furnace body. A ring mounting bracket is threaded onto the top of the chimney. A recovery cylinder is fixedly installed on the top of the ring mounting bracket. An annular guide plate is disposed inside the chimney, and the outer wall of the annular guide plate is fixedly connected to the inner wall of the chimney. An adjustment component is disposed within an annular mounting bracket and is used to adjust the inlet radius of the chimney.
[0006] Preferably, the adjusting assembly includes an annular rotating plate, which is disposed within an annular mounting frame. The outer side wall of the annular rotating plate is slidably connected to the inner side wall of the annular mounting frame. A hexagonal groove is formed on the top surface of the annular rotating plate, and multiple sliding plates are slidably installed in the hexagonal groove. Limiting rods are fixedly installed on the top surface of each of the multiple sliding plates. Multiple limiting grooves are formed on the top surface of the annular mounting frame, and the multiple limiting rods are slidably installed in the multiple limiting grooves respectively.
[0007] Preferably, the adjustment assembly further includes a gear disk, which is fixedly installed on the outer wall of the annular rotating plate. A bevel gear is provided on one side of the gear disk, and the bevel gear meshes with the gear disk. A support frame is fixedly installed on the outer wall of the chimney, and a second servo motor is fixedly installed inside the support frame. One end of the output shaft of the second servo motor is fixedly connected to one end of the bevel gear.
[0008] Preferably, an inner cylinder is fixedly installed inside the recycling cylinder, and two screens are fixedly installed inside the inner cylinder. The two screens have different surface densities, and both screens are located above the annular mounting frame. An air filter element is fixedly installed on the inner top surface of the inner cylinder.
[0009] Preferably, an annular fixing frame is provided above the inner cylinder, the outer side wall of the annular fixing frame is fixedly connected to the inner side wall of the recycling cylinder, a fan is rotatably installed on the bottom surface of the annular fixing frame, the fan is located above the inner cylinder, and the fan is connected to the air filter element.
[0010] Preferably, a first servo motor is fixedly mounted on the top surface of the annular fixing frame, and the bottom end of the output shaft of the first servo motor passes through the top surface of the annular fixing frame and is fixedly connected to the top end of the fan.
[0011] Preferably, both the outer walls of the recycling cylinder and the inner cylinder are provided with multiple air outlets, and all of the multiple air outlets are connected to the air filter element.
[0012] Beneficial effects The smoke and dust generated during the antimony ingot smelting process flow upwards to the top of the furnace under the pressure inside the furnace and enter the chimney. A fixed annular guide plate inside the chimney guides the dispersed smoke and dust into a concentrated airflow through its inclined surface structure, guiding it towards the recovery cylinder, laying the foundation for subsequent recycling. Simultaneously, the first servo motor is activated, its output shaft driving a fan at the bottom to rotate at high speed, creating a negative pressure environment inside the recovery cylinder, further enhancing the suction force on the smoke and dust inside the chimney and accelerating its entry into the recycling system. To accommodate fluctuations in smoke and dust emission caused by changes in the opening and closing of the antimony outlet, the second servo motor is activated, driving a bevel gear connected to its output shaft to rotate. Since the bevel gear meshes with a gear disk on the outer wall of the annular rotating plate, the gear disk rotates with the bevel gear, thereby driving the annular rotating plate to slide within the annular mounting frame. Multiple sliding plates installed in the hexagonal groove on the top surface of the annular rotating plate are subject to the hexagonal... The guide wall of the lateral groove slides synchronously, and the limiting rod on the top surface of the sliding plate slides along the limiting groove of the annular mounting frame to ensure stable movement of the sliding plate. By the convergence or dispersion of the sliding plate, the radius of the chimney pipe opening is reduced or expanded, so that the pipe opening always matches the range of smoke and dust dispersion, avoiding negative pressure waste or smoke and dust escape. After the smoke and dust airflow with the diameter adjustment enters the recovery cylinder, it first flows through two screens with different densities in the inner cylinder. The upper low-density screen first intercepts larger smoke and dust particles, and the lower high-density screen further captures smaller antimony powder particles, realizing the graded separation of smoke and dust. The separated airflow continues to flow upward and passes through the air filter element on the top surface of the inner cylinder. The residual fine dust and harmful gases are adsorbed and purified by the air filter element. Finally, the clean gas that meets the emission standards is discharged through multiple air outlets on the outer walls of the inner cylinder and the recovery cylinder, completing the entire smoke and dust recovery and purification process. Attached Figure Description
[0013] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.
[0014] Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is a structural diagram of the chimney and annular guide plate of this utility model. Figure 3 This is one of the structural diagrams of the adjustment component of this utility model; Figure 4 This is a structural diagram of the internal structure of the recycling cylinder of this utility model; Figure 5 This is the second structural diagram of the adjustment component of this utility model; Figure 6 This utility model Figure 1 Enlarged structural diagram at point A in the middle.
[0015] Legend: 1. Furnace body; 2. Chimney; 3. Annular mounting bracket; 4. Recycling cylinder; 5. Annular guide plate; 6. Support frame; 7. Inner cylinder; 8. Screen; 9. Air filter element; 10. Annular fixing frame; 11. Fan; 12. First servo motor; 13. Annular rotating plate; 14. Hexagonal groove; 15. Sliding plate; 16. Limiting rod; 17. Limiting groove; 18. Gear disk; 19. Bevel gear; 20. Second servo motor. Detailed Implementation
[0016] Example 1:
[0017] Please see Figures 1-6As shown, this embodiment provides a dust recovery device for antimony ingot smelting, applied to a furnace body 1. A chimney 2 is fixedly installed on the top surface of the furnace body 1, and the chimney 2 is connected to the interior of the furnace body 1. An annular mounting bracket 3 is threadedly installed at the top of the chimney 2, and a recovery cylinder 4 is fixedly installed at the top of the annular mounting bracket 3. An annular guide plate 5 is disposed inside the chimney 2, and the outer side wall of the annular guide plate 5 is fixedly connected to the inner side wall of the chimney 2. An adjustment component is disposed inside the annular mounting bracket 3 and is used to adjust the pipe opening radius of the chimney 2. The dust generated in the furnace body 1 during the antimony ingot smelting process is pushed upwards by the pressure inside the furnace. The dust flows into the chimney 2, where a fixed annular guide plate 5 guides the dispersed dust into a concentrated airflow through an inclined plate structure, guiding it towards the recovery cylinder 4. This lays the foundation for subsequent recycling. Simultaneously, the first servo motor 12 is activated, its output shaft driving the bottom fan 11 to rotate at high speed, creating a negative pressure environment inside the recovery cylinder 4. This further enhances the suction force of the dust in the chimney 2, accelerating the dust's entry into the recycling system. To accommodate fluctuations in dust emission caused by changes in the opening and closing of the outlet, the second servo motor 20 is activated, driving the bevel gear 19 connected to the output shaft to rotate. The bevel gear 19 meshes with the gear disk 18 on the outer wall of the annular rotating plate 13, causing the gear disk 18 to rotate with the bevel gear 19. This, in turn, drives the annular rotating plate 13 to slide within the annular mounting frame 3. Multiple sliding plates 15 installed in the hexagonal groove 14 on the top surface of the annular rotating plate 13 slide synchronously under the guidance of the side wall of the hexagonal groove 14. Furthermore, the limiting rod 16 on the top surface of the sliding plate 15 slides along the limiting groove 17 of the annular mounting frame 3, ensuring stable movement of the sliding plate 15. By converging or dispersing the sliding plates 15, the radius of the chimney 2's inlet is reduced or expanded, ensuring that the inlet always matches the range of smoke and dust dispersion and avoiding negative pressure waste. If smoke or dust escapes, the smoke and dust airflow, after being regulated by the inlet, enters the recovery cylinder 4 and first flows through two screens 8 of different densities inside the inner cylinder 7. The upper low-density screen 8 first intercepts larger smoke and dust particles, while the lower high-density screen 8 further captures smaller antimony powder particles, achieving graded separation of smoke and dust. The separated airflow continues to flow upward and passes through the air filter element 9 on the top surface inside the inner cylinder 7. The remaining fine dust and harmful gases are adsorbed and purified by the air filter element 9. Finally, the clean gas that meets the emission standards is discharged through multiple air outlets on the outer walls of the inner cylinder 7 and the recovery cylinder 4, completing the entire smoke and dust recovery and purification process.
[0018] Example 2:
[0019] This embodiment provides a device for recovering antimony dust from the antimony ingot smelting outlet. In addition to the technical solutions of the above embodiments, it also has the following technical features.
[0020] The adjustment assembly includes an annular rotating plate 13, which is disposed within an annular mounting frame 3. The outer wall of the annular rotating plate 13 is slidably connected to the inner wall of the annular mounting frame 3. A hexagonal groove 14 is formed on the top surface of the annular rotating plate 13, and multiple sliding plates 15 are slidably installed within the hexagonal groove 14. Limiting rods 16 are fixedly installed on the top surface of each of the multiple sliding plates 15. Multiple limiting grooves 17 are formed on the top surface of the annular mounting frame 3, and the multiple limiting rods 16 are slidably installed within the multiple limiting grooves 17 respectively. This drives the annular rotating plate 13 to slide within the annular mounting frame 3. Multiple sliding plates 15 installed in the hexagonal groove 14 on the top surface of the annular rotating plate 13 slide synchronously under the guidance of the side wall of the hexagonal groove 14. The limiting rod 16 on the top surface of the sliding plate 15 slides along the limiting groove 17 of the annular mounting frame 3 to ensure the stable movement of the sliding plate 15. By the convergence or dispersion of the sliding plates 15, the radius of the chimney 2 pipe opening is reduced or expanded, so that the pipe opening always matches the range of smoke and dust dispersion, avoiding negative pressure waste or smoke and dust escape.
[0021] Example 3:
[0022] This embodiment provides a device for recovering antimony dust from the antimony ingot smelting outlet. In addition to the technical solutions of the above embodiments, it also has the following technical features.
[0023] The adjustment assembly also includes a gear disk 18, which is fixedly installed on the outer wall of the annular rotating plate 13. A bevel gear 19 is provided on one side of the gear disk 18, and the bevel gear 19 meshes with the gear disk 18. A support frame 6 is fixedly installed on the outer wall of the chimney 2, and a second servo motor 20 is fixedly installed inside the support frame 6. One end of the output shaft of the second servo motor 20 is fixedly connected to one end of the bevel gear 19. In order to adapt to the fluctuation of smoke and dust emission caused by the change of the opening and closing size of the antimony outlet, the second servo motor 20 is started, which drives the bevel gear 19 connected to the output shaft to rotate. Since the bevel gear 19 meshes with the gear disk 18 on the outer wall of the annular rotating plate 13, the gear disk 18 rotates with the bevel gear 19.
[0024] Example 4:
[0025] This embodiment provides a device for recovering antimony dust from the antimony ingot smelting outlet. In addition to the technical solutions of the above embodiments, it also has the following technical features.
[0026] The recycling cylinder 4 has an inner cylinder 7 fixedly installed inside it. Inside the inner cylinder 7, two screens 8 are fixedly installed. The two screens 8 have different surface densities and are located above the annular mounting frame 3. An air filter element 9 is fixedly installed on the top surface of the inner cylinder 7. After the flue gas flow with the caliber adjusted enters the recycling cylinder 4, it first flows through the two screens 8 with different densities inside the inner cylinder 7. The upper low-density screen 8 first intercepts larger flue gas particles, while the lower high-density screen 8 further captures smaller antimony powder particles, thus achieving graded separation of flue gas. The separated airflow continues to flow upward and passes through the air filter element 9 on the top surface of the inner cylinder 7. The remaining fine dust and harmful gases are adsorbed and purified by the air filter element 9.
[0027] Example 5:
[0028] This embodiment provides a device for recovering antimony dust from the antimony ingot smelting outlet. In addition to the technical solutions of the above embodiments, it also has the following technical features.
[0029] An annular fixing frame 10 is provided above the inner cylinder 7. The outer side wall of the annular fixing frame 10 is fixedly connected to the inner side wall of the recycling cylinder 4. A fan 11 is rotatably installed on the bottom surface of the annular fixing frame 10. The fan 11 is located above the inner cylinder 7 and is connected to the air filter element 9. The airflow pressure generated by the fan 11 helps the air filter element 9 to better adsorb residual fine dust and harmful gases, further improving the purification effect and ensuring that the gas discharged from the recycling cylinder 4 reaches a more ideal level of cleanliness.
[0030] Example 6:
[0031] This embodiment provides a device for recovering antimony dust from the antimony ingot smelting outlet. In addition to the technical solutions of the above embodiments, it also has the following technical features.
[0032] The top surface of the annular fixed frame 10 is fixedly equipped with a first servo motor 12. The bottom end of the output shaft of the first servo motor 12 passes through the top surface of the annular fixed frame 10 and is fixedly connected to the top of the fan 11. When the first servo motor 12 is started, its output shaft drives the fan 11 on the bottom surface to rotate at high speed, forming a negative pressure environment in the recycling cylinder 4, further enhancing the suction force of the smoke and dust in the chimney 2 and accelerating the entry of the smoke and dust into the recycling system.
[0033] Example 7:
[0034] This embodiment provides a device for recovering antimony dust from the antimony ingot smelting outlet. In addition to the technical solutions of the above embodiments, it also has the following technical features.
[0035] The outer walls of both the recovery cylinder 4 and the inner cylinder 7 are provided with multiple air outlets, which are connected to the air filter element 9. Clean gas that meets emission standards is discharged through the multiple air outlets on the outer walls of the inner cylinder 7 and the recovery cylinder 4, thus completing the entire process of dust recovery and purification.
[0036] Working Principle: During the antimony ingot smelting process, the flue dust generated in furnace 1 flows upward to the top under the pressure inside the furnace and enters the chimney 2. The annular guide plate 5 fixed inside the chimney 2 plays a guiding role, and the inclined plate structure gathers the dispersed flue dust into a concentrated airflow, guiding it to flow towards the recovery cylinder 4, laying the foundation for subsequent recovery and processing. At the same time, the first servo motor 12 is started, and its output shaft drives the bottom fan 11 to rotate at high speed, creating a negative pressure environment in the recovery cylinder 4, further enhancing the suction force of the flue dust in the chimney 2 and accelerating the entry of the flue dust into the recovery system. To adapt to the fluctuation of flue dust emission caused by the change in the opening and closing of the antimony outlet, the second servo motor 20 is started, driving the bevel gear 19 connected to the output shaft to rotate. Since the bevel gear 19 meshes with the gear disk 18 on the outer wall of the annular rotating plate 13, the gear disk 18 rotates with the bevel gear 19, thereby driving the annular rotating plate 13 to slide in the annular mounting frame 3. Multiple... Each sliding plate 15 slides synchronously under the guidance of the side wall of the hexagonal groove 14, and the limiting rod 16 on the top surface of the sliding plate 15 slides along the limiting groove 17 of the annular mounting frame 3 to ensure the stable movement of the sliding plate 15. By the convergence or dispersion of the sliding plate 15, the radius of the chimney 2 is reduced or expanded, so that the opening always matches the range of smoke and dust dispersion, avoiding negative pressure waste or smoke and dust escape. After the smoke and dust airflow with the diameter adjustment enters the recovery cylinder 4, it first flows through two screens 8 with different densities in the inner cylinder 7. The upper low-density screen 8 first intercepts larger smoke and dust particles, and the lower high-density screen 8 further captures smaller antimony powder particles, realizing the graded separation of smoke and dust. The separated airflow continues to flow upward and passes through the air filter core 9 on the top surface of the inner cylinder 7. The residual fine dust and harmful gases are adsorbed and purified by the air filter core 9. Finally, the clean gas that meets the emission standards is discharged through multiple air outlets on the outer side wall of the inner cylinder 7 and the recovery cylinder 4, completing the entire smoke and dust recovery and purification process.
[0037] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A device for recovering antimony ingot smelting flue dust, characterized in that, Applied to the furnace body (1) A chimney (2) is fixedly installed on the top surface of the furnace body (1). The chimney (2) is connected to the interior of the furnace body (1). A ring mounting bracket (3) is threadedly installed at the top of the chimney (2). A recycling cylinder (4) is fixedly installed at the top of the ring mounting bracket (3). An annular guide plate (5) is provided inside the chimney (2), and the outer side wall of the annular guide plate (5) is fixedly connected to the inner side wall of the chimney (2). An adjustment component is provided inside the annular mounting bracket (3) and is used to adjust the inlet radius of the chimney (2); The adjustment assembly includes an annular rotating plate (13), which is disposed in an annular mounting frame (3). The outer side wall of the annular rotating plate (13) is slidably connected to the inner side wall of the annular mounting frame (3). A hexagonal groove (14) is provided on the top surface of the annular rotating plate (13). Multiple sliding plates (15) are slidably installed in the hexagonal groove (14). Limiting rods (16) are fixedly installed on the top surface of the multiple sliding plates (15). Multiple limiting grooves (17) are provided on the top surface of the annular mounting frame (3). The multiple limiting rods (16) are slidably installed in the multiple limiting grooves (17). The adjustment assembly also includes a gear disk (18), which is fixedly installed on the outer side wall of the annular rotating plate (13). A bevel gear (19) is provided on one side of the gear disk (18), and the bevel gear (19) meshes with the gear disk (18). A support frame (6) is fixedly installed on the outer side wall of the chimney (2), and a second servo motor (20) is fixedly installed inside the support frame (6). One end of the output shaft of the second servo motor (20) is fixedly connected to one end of the bevel gear (19). The recycling cylinder (4) has an inner cylinder (7) fixedly installed inside it. Two screens (8) are fixedly installed inside the inner cylinder (7). The two screens (8) have different surface densities. Both screens (8) are located above the annular mounting frame (3). An air filter element (9) is fixedly installed on the top surface inside the inner cylinder (7).
2. The antimony ingot smelting dust recovery device according to claim 1, characterized in that: An annular fixing frame (10) is provided above the inner cylinder (7). The outer side wall of the annular fixing frame (10) is fixedly connected to the inner side wall of the recycling cylinder (4). A fan (11) is rotatably installed on the bottom surface of the annular fixing frame (10). The fan (11) is located above the inner cylinder (7) and is connected to the air filter element (9).
3. The antimony ingot smelting dust recovery device according to claim 2, characterized in that: The top surface of the annular fixing frame (10) is fixedly mounted with a first servo motor (12), and the bottom end of the output shaft of the first servo motor (12) passes through the top surface of the annular fixing frame (10) and is fixedly connected to the top end of the fan (11).
4. The antimony ingot smelting dust recovery device according to claim 3, characterized in that: The outer walls of the recycling cylinder (4) and the inner cylinder (7) are provided with multiple air outlets, and the multiple air outlets are connected to the air filter element (9).