A desulfurization bed for desulfurization of blast furnace gas that can be lifted out
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-02
- Publication Date
- 2026-08-14
AI Technical Summary
[0004]本实用新型的目的是为了解决现有技术中存在的缺点，而提出的一种可吊出式高炉煤气脱硫用脱硫床，本实用新型通过滤网快拆设计与密封机制，解决了滤网维护不便和煤气泄漏问题，实现快速拆装、紧密密封，提高脱硫效率与设备稳定性，保障脱硫工作安全高效进行
[0015]1、本实用新型中，脱硫床的滤网采用快拆设计，利用榫块、多边形板与弹簧等部件的巧妙配合实现快速安装与拆卸。将榫块置入壳体后，通过简单的转动操作，榫块侧边的限位槽即可卡住挡板完成固定，安装过程快速且紧密贴合内壁，减少缝隙残留；拆卸时只需反向操作，便可轻松取下滤网进行清理或更换，极大地提升了滤网维护的便捷性与效率，减少设备停机时间。
Smart Images
Figure CN224633451U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of blast furnace gas treatment technology, and in particular to a desulfurization bed for desulfurization of blast furnace gas that can be lifted out. Background Technology
[0002] In the steel smelting industry, desulfurization of blast furnace gas is crucial for reducing environmental pollution and achieving clean energy. The desulfurization bed, as the core equipment, plays a vital role in desulfurization efficiency and operational stability due to the ease of installation and sealing performance of its internal structure. With increasingly stringent industrial requirements for desulfurization efficiency and environmental protection, optimizing the performance of desulfurization bed equipment has become a continuous area of exploration for the industry.
[0003] Regarding filter installation, the traditional threaded connection method presents numerous inconveniences, as filters are typically installed on the inner wall of pipes. Threaded connections require precise thread alignment and tightening within the limited internal space of the pipe, resulting in a narrow operating space and restricted tool usage, making the installation process time-consuming and labor-intensive. Furthermore, after prolonged use, the threads may become stuck due to corrosion and impurity accumulation, further increasing the difficulty of disassembly and making filter maintenance and replacement inefficient, failing to meet the needs of rapid maintenance in production. On the other hand, given the removable design of the desulfurization bed, it is subject to external forces and vibrations during hoisting and operation, making the sealing of the connections crucial. Poor sealing performance may cause components to loosen during hoisting, leading to gas leaks; during operation, changes in internal gas pressure may also create gaps at weak points in the seal, causing undesulfurized gas to leak out, not only reducing the desulfurization effect but also posing safety hazards and environmental pollution risks. To address these technical problems, this application proposes a removable desulfurization bed for blast furnace gas desulfurization. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a liftable desulfurization bed for blast furnace gas desulfurization. This invention solves the problems of inconvenient filter maintenance and gas leakage through a quick-release filter design and sealing mechanism, achieving rapid disassembly and assembly, tight sealing, improving desulfurization efficiency and equipment stability, and ensuring safe and efficient desulfurization operations.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] A desulfurization bed for desulfurization of blast furnace gas that can be lifted out includes a reaction tower and a water outlet tank. An air inlet is located on the left side of the water outlet tank, and a water pump is fixedly connected to the right side of the water outlet tank. A base plate is fixedly connected to the bottom of the water outlet tank. A pipe is fixedly connected to the upper side of the water pump, and a nozzle is fixedly connected to the outer wall of the left side of the pipe. A sealing assembly is provided on the upper outer wall of the water outlet tank. A flange is fixedly connected to the upper end of the water outlet tank, and a nut is provided below the flange. The lower outer wall of the reaction tower is located inside the upper side of the water outlet tank. A second flange is fixedly connected to the lower end of the reaction tower, and bolts are installed inside the second flange. A fixing frame is fixedly connected to the upper inner wall of the reaction tower, and a fixing assembly is provided on the upper side of the fixing frame. A filter screen is connected to the fixing frame through the fixing assembly.
[0007] Furthermore, the fixing assembly includes a housing fixedly connected to the upper side of the fixing frame, a handle rotatably connected to the outer wall of the filter screen, a circular plate fixedly connected to the upper side of the handle, a polygonal plate fixedly connected to the upper side of the circular plate, and a tenon fixedly connected to the upper side of the polygonal plate.
[0008] Furthermore, the sealing assembly includes a connecting plate fixedly connected to the upper side of the water outlet tank, a rotating ring threadedly connected to the upper side of the connecting plate, a pressure block fixedly connected to the front side of the rotating ring, a cover plate rotatably connected to the upper side of the rotating ring, and the outer wall of the cover plate fixedly connected to the outer wall of the water outlet tank.
[0009] Furthermore, a baffle is fixedly connected to the inner wall of the housing, and a spring is provided on the lower side of the baffle.
[0010] Furthermore, a polygonal groove is fixedly connected to the bottom end of the housing, and the outer wall of the spring is disposed on the upper side of the polygonal groove.
[0011] Furthermore, the outer wall of the tenon block is provided with a sliding groove, and the outer wall of the tenon block is provided with a limiting groove, which is located on the right side of the tenon block.
[0012] Furthermore, a rotating groove is provided inside the rotating ring, and a sliding block is provided inside the rotating groove. The lower end of the sliding block is slidably connected to the upper side of the connecting plate, and the other end of the connecting plate is slidably connected to the lower side of the cover plate.
[0013] Furthermore, a sealing ring is fixedly connected to the outer wall of the sliding block, and a sealing groove is provided on the lower outer wall of the reaction tower.
[0014] This utility model has the following beneficial effects:
[0015] 1. In this utility model, the filter screen of the desulfurization bed adopts a quick-release design, utilizing the ingenious cooperation of components such as tenons, polygonal plates, and springs to achieve rapid installation and disassembly. After the tenon is placed into the housing, a simple rotation operation allows the limiting groove on the side of the tenon to lock onto the baffle and complete the fixation. The installation process is quick and fits tightly against the inner wall, reducing gaps and residue. Disassembly only requires reversing the operation to easily remove the filter screen for cleaning or replacement, greatly improving the convenience and efficiency of filter screen maintenance and reducing equipment downtime.
[0016] 2. In this invention, the desulfurization bed employs a double sealing mechanism at the connection between the reaction tower and the outlet water tank. First, a preliminary tightening is achieved using a flange and bolts and nuts. Then, a secondary seal is achieved through the linkage structure of the rotating ring, pressure block, and sealing ring. When the pressure block rotates, it drives the rotating ring to rotate, causing the internal rotating groove to move the sliding block towards the center, compressing the sealing ring and making it tightly embedded in the sealing groove of the reaction tower, forming a tight sealing layer. This effectively prevents gas leakage from the connection point, ensuring the safe and stable operation of the desulfurization process, while also improving the overall sealing performance and reliability of the device. Attached Figure Description
[0017] Figure 1 This is a perspective view of a desulfurization bed for desulfurization of blast furnace gas that can be lifted out according to this utility model.
[0018] Figure 2 This is a schematic diagram of the nozzle structure of a desulfurization bed for desulfurization of blast furnace gas that can be lifted out according to this utility model.
[0019] Figure 3 This is a schematic diagram of the rotating ring structure of a desulfurization bed for desulfurization of blast furnace gas that can be lifted out according to this utility model.
[0020] Figure 4 This is a schematic diagram of the shell structure of a desulfurization bed for desulfurization of blast furnace gas that can be lifted out according to this utility model.
[0021] Legend:
[0022] 1. Reaction tower; 2. Pipeline; 3. Water pump; 4. Water outlet tank; 5. Base plate; 6. Air inlet; 7. Fixing frame; 8. Filter screen; 9. Bolt; 10. Nut; 11. Nozzle; 12. Connecting plate; 13. Rotating ring; 14. Sliding block; 15. Pressure block; 16. Sealing ring; 17. Cover plate; 18. Shell; 19. Baffle; 20. Spring; 21. Polygonal groove; 22. Tenon block; 23. Polygonal plate; 24. Circular plate. 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] Reference Figure 1 An embodiment of this utility model provides a desulfurization bed for desulfurization of blast furnace gas that can be lifted out, including a reaction tower 1 and a water outlet tank 4. An air inlet 6 is opened on the left side of the water outlet tank 4, and a water pump 3 is fixedly connected to the right side of the water outlet tank 4. A bottom plate 5 is fixedly connected to the bottom of the water outlet tank 4. A pipe 2 is fixedly connected to the upper side of the water pump 3. A nozzle 11 is fixedly connected to the outer wall of the left side of the pipe 2. A connecting plate 12 is provided on the upper outer wall of the water outlet tank 4. A rotating ring 13 is threadedly connected to the upper side of the connecting plate 12. A pressure block 15 is fixedly connected to the front side of the rotating ring 13. A cover plate 17 is rotatably connected to the upper side of the rotating ring 13. The outer wall of the cover plate 17 is fixedly connected to the outer wall of the water outlet tank 4. A flange is fixedly connected to the upper end of the outlet tank 4, and a nut 10 is installed on the lower side of the flange. The lower outer wall of the reaction tower 1 is located inside the upper side of the outlet tank 4. A flange is fixedly connected to the lower end of the reaction tower 1, and a bolt 9 is installed inside the flange. A fixing frame 7 is fixedly connected to the upper inner wall of the reaction tower 1. A housing 18 is installed on the upper side of the fixing frame 7. A handle is rotatably connected to the outer wall of the filter screen 8. A circular plate 24 is fixedly connected to the upper side of the handle. A polygonal plate 23 is fixedly connected to the upper side of the circular plate 24. A tenon 22 is fixedly connected to the upper side of the polygonal plate 23. The filter screen 8 is connected to the fixing frame 7 through a fixing assembly.
[0025] Specifically, because gas passes through the device in a humid environment, it needs to be filtered and dried. Therefore, a quick-installation structure for filter 8 was designed to fit snugly against the inner wall without gaps. A baffle 19 is installed inside the housing 18. When the end of the tenon 22 is inserted into the housing 18, the sliding groove on the surface of the tenon 22 slides along the edge of the baffle 19. When pushed a certain length, the handle rotates and connects with filter 8. Rotating the handle causes the upper limiting groove on the side of the tenon 22 to engage with the baffle 19, thus securing it. A spring 20 is designed inside the device, and the spring 20... A polygonal groove 21 is provided on the lower side. The corners of the polygonal groove 21 will lock the spring 20 to prevent the spring 20 from dislodging inside the housing 18. The polygonal plate 23 provided on the lower side of the tenon 22 fits into the polygonal groove 21, so the edge of the tenon 22 can press the spring 20. When the polygonal plate 23 is pushed into the housing 18, the area of the circular plate 24 is smaller than that of the polygonal plate 23. After installation, the circular plate 24 will remain on the outside, while the polygonal plate 23 will fit into the polygonal groove 21 to complete the above-mentioned rotation. Furthermore, after rotation, the polygonal plate 23 will fit into the polygonal groove 21 to prevent relative rotation between the housing 18 and the polygonal plate 23. Because the device can be hoisted and used, it needs to be fixed, and extra attention needs to be paid to the sealing between the connections. The upper outer wall of the outlet tank 4 is fixedly connected to the connecting plate 12 and the cover plate 17, with a semi-circular rotating connection ring 13 in the middle and a pressure block 15 on the outside. The device can be installed by plugging the reaction tower 1 and the outlet tank 4. The two side flanges are connected with bolts 9 and nuts 10. First, the machine pushes the pressure block 15 to rotate the rotating ring 13. The internal rotating groove is displaced under the rotation of the rotating ring 13, which will drive the sliding block 14 along the rotation. The shape of the rotating groove changes, but the sliding block 14 slides inside the connecting plate 12. The rotating groove and the connecting plate 12 rotate relative to each other, so the sliding block 14 cannot follow the circumferential movement of the rotating groove, but will follow the sliding connection at the upper and lower ends to move in a straight line. The sliding blocks 14 on all sides move together towards the center, thereby squeezing the sealing ring 16 inward. A sealing groove is opened on the lower side of the reaction tower 1. The sealing ring 16 is squeezed into the sealing groove, connecting the two parts, increasing the sealing effect of the device, and reducing the leakage of gas from the gap. The sealing ring 16 is a thin fluororubber with good sealing and corrosion resistance.
[0026] Reference Figures 2-4A baffle 19 is fixedly connected to the inner wall of the shell 18, and a spring 20 is provided on the lower side of the baffle 19. A polygonal groove 21 is fixedly connected to the bottom end of the shell 18, and the outer wall of the spring 20 is located on the upper side of the polygonal groove 21. A sliding groove is provided on the outer wall of the tenon 22, and a limiting groove is provided on the outer wall of the tenon 22, located on the right side of the tenon 22. A rotating groove is provided inside the rotating ring 13, and a sliding block 14 is provided inside the rotating groove. The lower end of the sliding block 14 is slidably connected to the upper side of the connecting plate 12, and the other end of the connecting plate 12 is slidably connected to the lower side of the cover plate 17. A sealing ring 16 is fixedly connected to the outer wall of the sliding block 14, and a sealing groove is provided on the lower outer wall of the reaction tower 1.
[0027] Specifically, a fixing frame 7 is fixedly connected to the inner wall of the upper side of the reaction tower 1, and a housing 18 is set on the upper side of the fixing frame 7. A handle is rotatably connected to the outer wall of the filter screen 8, and a circular plate 24, a polygonal plate 23, and a tenon 22 are fixedly connected to the upper side of the handle in sequence. The fixing frame 7 is connected to the filter screen 8 through a fixing component. The fixing component is ingeniously designed to ensure that the filter screen 8 can be quickly installed and fits the inner wall to reduce gaps. Specifically, a baffle 19 is set inside the housing 18. When the end of the tenon 22 is inserted into the housing 18, the sliding groove on the surface of the tenon 22 will first slide along the edge of the baffle 19. After advancing a certain length, the handle is rotated. At this time, the upper limiting groove on the side of the tenon 22 will lock the baffle 19, thereby completing the fixation. A spring 20 is also designed inside the device. The corner of the polygonal groove 21 on the lower side of the spring 20 will lock the spring 20 to prevent it from falling off. The polygonal plate 23 on the lower side of the tenon 22 fits into the polygonal groove 21. When the polygonal plate 23 is pushed into the housing 18, the circular plate 24, with a smaller area than the polygonal plate 23, can rotate smoothly. After rotation, the polygonal plate 23 fits into the polygonal groove 21. When it enters, the tenon 22 pushes the spring 20 upward. Under the push of the spring 20, the relative rotation between the housing 18 and the polygonal plate 23 is prevented. In terms of the sealing structure, the upper outer wall of the outlet tank 4 is fixedly connected to the connecting plate 12 and the cover plate 17, with a semi-circular space in the middle for rotating the rotating ring 13. A pressure block 15 is provided on the outer side. The device uses a plug-in connection to install the reaction tower 1 and the outlet tank 4, and connects the flanges on both sides with bolts 9 and nuts 10. When the pressure block 15 is pushed by a machine to rotate the rotating ring 13, the rotating groove inside the rotating ring 13 is displaced, causing the sliding block 14 to move along the shape of the rotating groove. Since the sliding block 14 slides inside the connecting plate 12, it cannot follow the circumferential movement of the rotating groove. It can only move in a straight line along the sliding connection at the upper and lower ends. The sliding blocks 14 on all sides move together towards the center, squeezing the thinner fluororubber sealing ring 16 inward, so that it enters the sealing groove opened on the lower side of the reaction tower 1, effectively increasing the sealing effect of the device and reducing gas leakage. The filter screen is a plate structure made of iron.
[0028] Working principle: For the installation of filter screen 8, the end of tenon 22 is inserted into the housing 18. The sliding groove on the surface of tenon 22 slides along the edge of baffle 19. After being pushed a certain length, the handle is turned, and the upper limiting groove on the side of tenon 22 locks into baffle 19, achieving fixation. Spring 20, limited by polygonal groove 21, prevents detachment. Polygonal plate 23 on the lower side of tenon 22 fits into polygonal groove 21, bearing the elastic force of spring 20. The area of circular plate 24 is smaller than that of polygonal plate 23, facilitating rotation. After rotation, under the push of spring 20, relative rotation between housing 18 and polygonal plate 23 can be achieved, ensuring that filter screen 8 is installed tightly and fits against the inner wall. For the connection and sealing between reaction tower 1 and outlet tank 4, the lower outer wall of reaction tower 1 is first inserted into the upper interior of outlet tank 4. Bolts 9 and nuts 10 are used to initially connect flange one and flange two. Then, the machine pushes the pressure block 15 to rotate the rotating ring 13. The rotating groove inside the rotating ring 13 is displaced, which drives the sliding block 14 to move in a straight line within the connecting plate 12. The sliding blocks 14 move towards the center, squeezing the sealing ring 16 and causing it to enter the sealing groove on the lower side of the reaction tower 1. This enhances the sealing of the device, prevents gas from leaking from the gaps, and ensures the stable operation of the desulfurization process.
[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A hoisting-out type desulfurization bed for blast furnace gas desulfurization, comprising a reaction tower (1) and a water outlet tank (4), characterized in that: An air inlet (6) is provided on the left side of the water outlet tank (4). A water pump (3) is fixedly connected to the right side of the water outlet tank (4). A base plate (5) is fixedly connected to the bottom of the water outlet tank (4). A pipe (2) is fixedly connected to the upper side of the water pump (3). A nozzle (11) is fixedly connected to the outer wall of the left side of the pipe (2). A sealing component is provided on the outer wall of the upper side of the water outlet tank (4). A flange is fixedly connected to the upper end of the water outlet tank (4). A nut (10) is provided on the lower side of the flange. The outer wall of the lower side of the reaction tower (1) is located inside the upper side of the water outlet tank (4). A flange is fixedly connected to the lower end of the reaction tower (1). A bolt (9) is provided inside the flange. A fixing frame (7) is fixedly connected to the inner wall of the upper side of the reaction tower (1). A fixing component is provided on the upper side of the fixing frame (7). A filter screen (8) is connected to the fixing frame (7) through the fixing component.
2. The withdrawable desulfurization bed for blast furnace gas according to claim 1, characterized in that: The fixing assembly includes a housing (18) fixedly connected to the upper side of the fixing frame (7), a handle is rotatably connected to the outer wall of the filter screen (8), a circular plate (24) is fixedly connected to the upper side of the handle, a polygonal plate (23) is fixedly connected to the upper side of the circular plate (24), and a tenon (22) is fixedly connected to the upper side of the polygonal plate (23).
3. The withdrawable desulfurization bed for blast furnace gas according to claim 1, characterized in that: The sealing assembly includes a connecting plate (12) fixedly connected to the upper side of the water outlet tank (4), a rotating ring (13) threadedly connected to the upper side of the connecting plate (12), a pressure block (15) fixedly connected to the front side of the rotating ring (13), a cover plate (17) rotatably connected to the upper side of the rotating ring (13), and the outer wall of the cover plate (17) fixedly connected to the outer wall of the water outlet tank (4).
4. The withdrawable desulfurization bed for blast furnace gas according to claim 2, characterized in that: A baffle (19) is fixedly connected to the inner wall of the housing (18), and a spring (20) is provided on the lower side of the baffle (19).
5. A withdrawable desulphurization bed for desulphurizing blast furnace gas according to claim 4, characterized in that: The bottom end of the housing (18) is fixedly connected to a polygonal groove (21), and the outer wall of the spring (20) is set on the upper side of the polygonal groove (21).
6. The withdrawable desulphurization bed for blast furnace gas according to claim 2, characterized in that: The tenon (22) has a sliding groove on its outer wall and a limiting groove on its outer wall, which is located on the right side of the tenon (22).
7. The withdrawable desulphurization bed for blast furnace gas according to claim 3, characterized in that: The rotating ring (13) has a rotating groove inside, and a sliding block (14) is provided inside the rotating groove. The lower end of the sliding block (14) is slidably connected to the upper side of the connecting plate (12), and the other end of the connecting plate (12) is slidably connected to the lower side of the cover plate (17).
8. The withdrawable desulphurization bed for blast furnace gas according to claim 7, characterized in that: A sealing ring (16) is fixedly connected to the outer wall of the sliding block (14), and a sealing groove is provided on the lower outer wall of the reaction tower (1).