Fixed bed iron-based desulfurization device for blast furnace gas
By installing swaying and vibration components in the fixed bed of blast furnace gas, the iron-based desulfurizing agent and sulfur dioxide are brought into full contact, which solves the problem of desulfurizing agent accumulation, achieves efficient desulfurization and uniform distribution of desulfurizing agent, and reduces costs.
Patent Information
- Application Number
- CN202423182381.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-23
AI Technical Summary
In the iron-based desulfurization process of blast furnace gas, the desulfurizing agent accumulates in the fixed bed, making it difficult for the gas to fully contact the desulfurizing agent, which affects the desulfurization efficiency and the service life of the agent.
By setting up components such as a motor, movable shaft, fixed plate, movable plate, and insert rod, the iron-based desulfurizer in the storage box is shaken to promote full contact and reaction between it and sulfur dioxide in the blast furnace gas. At the same time, the storage box is vibrated by tapping it with a thin rope and elastic ball to prevent the desulfurizer from clumping and to distribute it evenly. A flow-limiting plate is set to prevent gas backflow and cross-contamination. A gas detector is equipped to monitor the concentration in real time and replace the desulfurizer in a timely manner.
It accelerated the desulfurization process, improved desulfurization efficiency, extended the service life of the desulfurizing agent, reduced desulfurization costs, and ensured that the desulfurized gas met environmental protection standards.
Smart Images
Figure CN223615665U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of energy-saving and environmental protection technology, specifically a fixed-bed iron-based desulfurization device for blast furnace gas. Background Technology
[0002] Blast furnace gas is a combustible gas produced as a byproduct of blast furnace ironmaking. It contains a large amount of sulfur dioxide and other sulfides. These sulfides can cause environmental pollution when burned or released into the atmosphere, leading to environmental problems such as acid rain and photochemical smog.
[0003] In existing technologies, desulfurizing agents are typically added to blast furnace gas for desulfurization. The desulfurized blast furnace gas can not only be used directly for combustion in the blast furnace hot blast stove to provide the required hot air for the blast furnace, but it can also be used for power generation in boilers that burn only blast furnace gas, thus realizing energy reuse.
[0004] Through long-term use and observation, it was found that during the iron-based desulfurization process of blast furnace gas, the desulfurizing agent accumulated in the fixed bed, making it difficult for the gas to fully contact the desulfurizing agent and undergo a chemical reaction.
[0005] Therefore, this utility model provides a fixed-bed iron-based desulfurization device for blast furnace gas. Utility Model Content
[0006] To overcome the shortcomings of the prior art and solve at least one of the problems mentioned in the background art, a fixed-bed iron-based desulfurization device for blast furnace gas is proposed.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A fixed-bed iron-based desulfurization device for blast furnace gas, comprising a fixed-bed body; a maintenance window is provided in the middle of the side wall of the fixed-bed body; a top cover is provided on the top side wall of the fixed-bed body; a detection component is provided on the top side wall; a rotating component is provided in the middle of the side wall of the top cover; a striking component is provided on the bottom side wall of the rotating component; an air inlet pipe is fixed in the middle of the side wall of the fixed-bed body; an air outlet pipe is fixed in the top side wall of the top cover; a limiting component is provided in the middle of the inner side wall of both the air inlet pipe and the air outlet pipe; a storage box is rotatably connected to the middle of the inner side wall of the fixed-bed body; multiple sieve holes are provided in the middle of the side wall of the storage box; the fixed-bed body, air inlet pipe, air outlet pipe, storage box, and sieve holes are all hollow and interconnected; the striking component is located above the storage box; an opening and closing component is provided in the middle of the side wall of the storage box; the rotating component… The component includes a motor; the motor is mounted on the top of the top cover; a movable shaft is fixed to the output end of the motor; multiple fixed plates are fixedly connected to the middle of the side wall of the movable shaft; a movable plate is rotatably connected to the middle of the side wall of the fixed plate; a torsion spring is provided between the fixed plate and the movable plate; a plug rod is rotatably connected to the middle of the side wall of the movable plate; a torsion spring is provided between the plug rod and the movable plate; the plug rod and the sieve holes are correspondingly arranged. This step, by setting up the motor, movable shaft, fixed plate, movable plate and plug rod, can shake the iron-based desulfurizing agent inside the storage box, promote the iron-based desulfurizing agent to fully contact and react with sulfur dioxide in the blast furnace gas, thereby accelerating the desulfurization speed, improving the desulfurization efficiency, and helping to effectively remove sulfur dioxide in the flue gas blast furnace gas to meet environmental protection standards. Moreover, this setting can make the iron-based desulfurizing agent evenly distributed in the storage box, reduce local desulfurizing agent accumulation or excessive consumption, help extend the service life of the desulfurizing agent and reduce desulfurization costs.
[0008] Preferably, the striking component includes a thin rope; the thin rope is multiple and arranged in a circular array at the bottom of the movable shaft; an elastic ball is fixed to the end of the thin rope; both the thin rope and the elastic ball are made of elastic material; the elastic ball is located above the storage box; this step of setting the thin rope and elastic ball can generate vibration by striking the storage box, which helps to prevent the iron-based desulfurizer from forming agglomerates during high temperature and chemical reaction. Moreover, the vibration generated by striking the storage box can also make the desulfurizer more evenly distributed in the fixed bed body. Maintaining the loose state of the desulfurizer helps it to fully contact the sulfur dioxide in the blast furnace gas, further improving the desulfurization efficiency.
[0009] Preferably, the limiting component includes multiple support rods; the multiple support rods are symmetrically arranged inside the inlet pipe and the outlet pipe; a flow limiting plate is rotatably connected to the middle of the side wall of each support rod; a torsion spring is provided between the support rod and the flow limiting plate; this step, by setting the support rods and the flow limiting plate, ensures that the gas can only flow into the fixed bed body in one direction or flow out of the fixed bed body in one direction. This not only prevents gas backflow during the desulfurization process, which could cause unnecessary damage to the desulfurizing agent and equipment, but also prevents gas from flowing back from the outlet pipe into the fixed bed body, thus helping to maintain the stability and safety of the desulfurization system. Furthermore, this setting can also prevent cross-contamination between different gases, ensuring that the desulfurized gas meets environmental protection standards.
[0010] Preferably, the opening and closing component includes a slot; the slot is formed on the side wall of the storage box; a movable window is slidably connected to the middle of the inner side wall of the slot; a first magnetic plate is fixed to the middle of the side wall of the movable window; a second magnetic plate is fixed to the middle of the inner side wall of the storage box; the first magnetic plate and the second magnetic plate are magnetically attracted to each other; this step, by setting the slot, the movable window, the first magnetic plate and the second magnetic plate, allows for timely replacement of the desulfurizing agent, ensuring that the desulfurization process is always in optimal condition and reducing the decrease in desulfurization efficiency caused by the failure of the desulfurizing agent.
[0011] Preferably, the detection component includes a gas detector; the gas detector is mounted on the top of the top cover; this step, by setting the gas detector, can monitor the concentration of sulfur dioxide or hydrogen sulfide in the fixed bed in real time, enabling production personnel to operate in a safe environment, and by monitoring the gas concentration in real time, it can help production personnel understand the real-time status of the desulfurization process, thereby adjusting the operating parameters to optimize the desulfurization efficiency.
[0012] Preferably, a sealing ring is fixed in the middle of the side wall of the top cover; the sealing ring is located between the top cover and the movable shaft; the sealing ring is made of elastic material; this step, by setting the sealing ring, can form a sealed barrier at the joint between the top cover and the movable shaft, preventing gas leakage and further ensuring the smooth progress of the desulfurization process.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The fixed-bed iron-based desulfurization device for blast furnace gas described in this utility model, by setting up a motor, a movable shaft, a fixed plate, a movable plate, and a plug rod, can shake the iron-based desulfurizing agent inside the storage box, promote the full contact and reaction between the iron-based desulfurizing agent and sulfur dioxide in the blast furnace gas, thereby accelerating the desulfurization speed, improving the desulfurization efficiency, and helping to effectively remove sulfur dioxide from the flue gas blast furnace to meet environmental protection standards. Moreover, this setting can make the iron-based desulfurizing agent evenly distributed in the storage box, reduce local desulfurizing agent accumulation or excessive consumption, help extend the service life of the desulfurizing agent, and reduce desulfurization costs.
[0015] 2. The fixed-bed iron-based desulfurization device for blast furnace gas described in this utility model, by setting thin ropes and elastic balls, can generate vibration by tapping the storage box, which helps to prevent the iron-based desulfurizing agent from forming agglomerates during high temperature and chemical reaction. Moreover, the vibration generated by tapping the storage box can also make the desulfurizing agent more evenly distributed in the fixed bed body. Maintaining the loose state of the desulfurizing agent helps it to fully contact the sulfur dioxide in the blast furnace gas, further improving the desulfurization efficiency. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is a sectional view of the fixed bed body in this utility model;
[0019] Figure 3 This is a schematic diagram of the cooperative structure of the movable plate and the elastic ball in this utility model;
[0020] Figure 4 This is a schematic diagram of the cooperative structure of the storage box and the movable window in this utility model.
[0021] Legend:
[0022] 1. Fixed bed body; 11. Inspection window; 12. Top cover; 13. Air inlet pipe; 14. Air outlet pipe; 15. Storage box; 16. Screen hole; 2. Motor; 21. Movable shaft; 22. Fixed plate; 23. Movable plate; 24. Insert rod; 3. Thin rope; 31. Elastic ball; 4. Support rod; 41. Flow limiting plate; 5. Groove; 51. Moving window; 52. First magnetic plate; 53. Second magnetic plate; 6. Gas detector; 7. Sealing ring. 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0024] Specific implementation examples are given below.
[0025] like Figure 1 , Figure 2 and Figure 4As shown in the figure, a fixed-bed iron-based desulfurization device for blast furnace gas according to an embodiment of the present invention includes a fixed-bed body 1; an inspection window 11 is provided in the middle of the side wall of the fixed-bed body 1; a top cover 12 is provided on the top side wall of the fixed-bed body 1; a detection component is provided on the top side wall; a rotating component is provided in the middle of the side wall of the top cover 12; a knocking component is provided on the bottom side wall of the rotating component; an air inlet pipe 13 is fixed in the middle of the side wall of the fixed-bed body 1; an air outlet pipe 14 is fixed in the top side wall of the top cover 12; the air inlet pipe 13 and the air outlet pipe 14 are... 4. A limiting component is provided in the middle of the inner side wall; a storage box 15 is rotatably connected to the middle of the inner side wall of the fixed bed body 1; multiple sieve holes 16 are opened in the middle of the side wall of the storage box 15; the fixed bed body 1, the air inlet pipe 13, the air outlet pipe 14, the storage box 15 and the sieve holes 16 are all hollow and connected; a striking component is located above the storage box 15; an opening and closing component is provided in the middle of the side wall of the storage box 15; during operation, the production personnel open the maintenance window 11 and use the opening and closing component to open the storage box 15, and then feed the material into the storage box 15. 5. An iron-based desulfurizing agent is placed inside the fixed bed body 1. Then, the storage box 15 is sealed using the opening and closing mechanism, and the inspection window 11 is closed, thus sealing the interior of the fixed bed body 1. Subsequently, under the control of the flow restriction mechanism, production personnel inject blast furnace gas into the fixed bed body 1 through the inlet pipe 13. At this time, the blast furnace gas rises within the fixed bed body 1 and comes into contact with the iron-based desulfurizing agent placed inside the storage box 15. This causes a chemical reaction between the sulfur dioxide in the blast furnace gas and the iron-based desulfurizing agent, converting the sulfur dioxide into a solid state. Sulfides or sulfates are removed, and the desulfurized gas flows out from the outlet pipe 14 under the control of the limiting component and is collected by the production personnel. When the production personnel find that the reaction is slow through the detection component, they use the rotating component and the tapping component to shake and vibrate the iron-based desulfurizer inside the storage box 15 so that the sulfur dioxide in the blast furnace gas can come into full contact with the iron-based desulfurizer. After the desulfurization operation is completed, the production personnel use the opening and closing component to open the storage box 15, take out and replace the iron-based desulfurizer inside the storage box 15.
[0026] like Figures 1 to 3As shown, the rotating assembly includes a motor 2; the motor 2 is mounted on the top of the top cover 12; a movable shaft 21 is fixed to the output end of the motor 2; multiple fixed plates 22 are fixedly connected to the middle of the side wall of the movable shaft 21; a movable plate 23 is rotatably connected to the middle of the side wall of the fixed plate 22; a torsion spring is provided between the fixed plate 22 and the movable plate 23; an insertion rod 24 is rotatably connected to the middle of the side wall of the movable plate 23; a torsion spring is provided between the insertion rod 24 and the movable plate 23; the insertion rod 24 and the sieve hole 16 are correspondingly arranged; during operation, when production personnel pass through the detection assembly... When the chemical reaction inside the fixed bed body 1 is found to be slow, the motor 2, movable shaft 21, fixed plate 22, movable plate 23, and insert rod 24 are inserted into the fixed bed body 1. Because there are torsion springs between the fixed plate 22 and the movable plate 23, and between the insert rod 24 and the movable plate 23, the movable plate 23 and the insert rod 24, after being released from the restraint of the top cover 12 and entering the fixed bed body 1, begin to extend and open outward. Since the insert rod 24 is correspondingly set with the sieve holes 16, multiple insert rods 24 will... The motor 2 is installed on the top of the top cover 12 and inserted into the corresponding screen hole 16. Then, the production personnel fix the motor 2 on the top of the top cover 12 and start the motor 2. The motor 2 will rotate the movable shaft 21. When the movable shaft 21 rotates, it will also rotate the fixed plate 22, the movable plate 23 and the insertion rod 24 synchronously. This causes the insertion rod 24 to rotate the storage box 15 inside the fixed bed body 1, thereby shaking the iron-based desulfurizer placed inside the storage box 15. This step, by setting up the motor 2, the movable shaft 21, the fixed plate 22, the movable plate 23 and the insertion rod 24, can shake the iron-based desulfurizer inside the storage box 15, promote the iron-based desulfurizer to fully contact and react with sulfur dioxide in the blast furnace gas, thereby accelerating the desulfurization speed, improving the desulfurization efficiency, and helping to effectively remove sulfur dioxide in the flue gas blast furnace gas to meet environmental protection standards. Moreover, this setting can make the iron-based desulfurizer evenly distributed in the storage box 15, reduce the local accumulation or excessive consumption of desulfurizer, help extend the service life of the desulfurizer and reduce the desulfurization cost.
[0027] like Figure 2 and Figure 3 As shown, the striking component includes a thin rope 3; there are multiple thin ropes 3 arranged in a circular array at the bottom of the movable shaft 21; an elastic ball 31 is fixed to the end of the thin rope 3; both the thin rope 3 and the elastic ball 31 are made of elastic material; the elastic ball 31 is located above the storage box 15; during operation, when the movable shaft 21 rotates under the drive of the motor 2, the multiple thin ropes 3 at the bottom of the movable shaft 21 will rotate synchronously. At this time, the elastic ball 31 at the bottom of the thin rope 3 will continuously strike the storage box 15. This step of setting the thin rope 3 and the elastic ball 31 can generate vibration by striking the storage box 15, which helps to prevent the iron-based desulfurizer from forming agglomerates during high temperature and chemical reaction. Moreover, the vibration generated by striking the storage box 15 can also make the desulfurizer more evenly distributed in the fixed bed body 1. Maintaining the loose state of the desulfurizer helps it to fully contact the sulfur dioxide in the blast furnace gas, further improving the desulfurization efficiency.
[0028] like Figure 1 and Figure 2 As shown, the limiting component includes multiple support rods 4; the multiple support rods 4 are symmetrically arranged inside the inlet pipe 13 and the outlet pipe 14 respectively; a flow limiting plate 41 is rotatably connected to the middle of the side wall of the support rod 4; a torsion spring is provided between the support rod 4 and the flow limiting plate 41; during operation, the production personnel inject the combusted blast furnace gas into the fixed bed body 1 through the inlet pipe 13. At this time, a large amount of gas will come into contact with the flow limiting plate 41 and squeeze the flow limiting plate 41, causing the flow limiting plate 41 to rotate on the support rod 4. Then the gas enters the interior of the fixed bed body 1 through the flow limiting plate 41. At the same time, when the desulfurized gas is discharged from the outlet pipe 14, it will squeeze out the flow limiting plate 41 inside the outlet pipe 14, causing the flow limiting plate 41 to rotate on the support rod 4. Then the gas passes through the flow limiting plate 41. The gas flows outward from the fixed bed body 1. Because a torsion spring is provided between the support rod 4 and the flow limiting plate 41, the flow limiting plate 41 will seal the inlet pipe 13 and the outlet pipe 14 when there is no gas compression, keeping the interior of the fixed bed body 1 closed. This step, by setting the support rod 4 and the flow limiting plate 41, ensures that the gas can only flow into the fixed bed body 1 in one direction or flow out of the fixed bed body 1 in one direction. This not only prevents the gas from flowing back during the desulfurization process, causing unnecessary damage to the desulfurizing agent and equipment, but also prevents the gas from flowing back from the outlet pipe 14 into the fixed bed body 1, which helps to maintain the stability and safety of the desulfurization system. In addition, this setting can also prevent cross-contamination between different gases, so that the desulfurized gas meets environmental protection standards.
[0029] like Figure 1 and Figure 4 As shown, the opening and closing assembly includes a slot 5; the slot 5 is located on the side wall of the storage box 15; a movable window 51 is slidably connected to the middle of the inner side wall of the slot 5; a first magnetic plate 52 is fixed to the middle of the side wall of the movable window 51; a second magnetic plate 53 is fixed to the middle of the inner side wall of the storage box 15; the first magnetic plate 52 and the second magnetic plate 53 are magnetically attracted to each other; during operation, after the desulfurization operation is completed or when the production personnel find that no chemical reaction occurs inside the fixed bed body 1, the movable window 51 is pulled to open the storage box 15, the iron-based desulfurizer inside the storage box 15 is taken out and replaced, and then the movable window 51 is closed. At this time, under the action of the first magnetic plate 52 and the second magnetic plate 53, the movable window 51 will tightly cover the outside of the storage box 15. This step, by setting the slot 5, the movable window 51, the first magnetic plate 52 and the second magnetic plate 53, can replace the desulfurizer in time, so that the desulfurization process is always in the best state and the desulfurization efficiency is reduced due to the failure of the desulfurizer.
[0030] like Figure 1As shown, the detection component includes a gas detector 6; the gas detector 6 is mounted on the top of the top cover 12; this step, by setting the gas detector 6, can monitor the concentration of sulfur dioxide or hydrogen sulfide in the fixed bed body 1 in real time, so that production personnel can operate in a safe environment, and by monitoring the gas concentration in real time, it can help production personnel understand the real-time status of the desulfurization process, thereby adjusting the operating parameters to optimize the desulfurization efficiency.
[0031] like Figure 2 and Figure 3 As shown, a sealing ring 7 is fixed in the middle of the side wall of the top cover 12; the sealing ring 7 is located between the top cover 12 and the movable shaft 21; the sealing ring 7 is made of elastic material; this step, by setting the sealing ring 7, can form a sealed barrier at the joint between the top cover 12 and the movable shaft 21, preventing gas leakage and further ensuring the smooth progress of the desulfurization process.
[0032] Working principle: Production personnel open the maintenance window 11 and use the opening and closing assembly to open the storage box 15. They then add iron-based desulfurizing agent into the storage box 15, close it using the opening and closing assembly, and then close the maintenance window 11, sealing the interior of the fixed bed body 1. Subsequently, under the flow control of the limiting assembly, production personnel inject blast furnace gas into the fixed bed body 1 through the inlet pipe 13. The blast furnace gas rises within the fixed bed body 1 and comes into contact with the iron-based desulfurizing agent placed inside the storage box 15. This causes a chemical reaction between the sulfur dioxide in the blast furnace gas and the iron-based desulfurizing agent, converting the sulfur dioxide into solid sulfides or sulfates. The desulfurized gas then flows out from the outlet pipe 14 under the flow control of the limiting assembly and is then collected by the production personnel. When production personnel detect a slow reaction using the detection components, they shake and vibrate the iron-based desulfurizer inside the storage box 15 using the rotating and tapping components to ensure sufficient contact between the sulfur dioxide in the blast furnace gas and the iron-based desulfurizer. After the desulfurization operation is completed, production personnel use the opening and closing components to open the storage box 15, remove and replace the iron-based desulfurizer inside. When production personnel detect a slow chemical reaction inside the fixed bed body 1 using the detection components, they insert the motor 2, movable shaft 21, fixed plate 22, movable plate 23, and insertion rod 24 into the fixed bed body 1. Because there are torsion springs between the fixed plate 22 and movable plate 23, and between the insertion rod 24 and movable plate 23, the movable plate 23 and insertion rod 24 detach from the top cover 1. After the restraints 2 and 2 enter the fixed bed body 1, they begin to extend and open outwards. Because the insertion rods 24 and the screen holes 16 are correspondingly set, multiple insertion rods 24 will be inserted into the corresponding screen holes 16 before the motor 2 is installed on the top of the top cover 12. Then, the production personnel fix the motor 2 on the top of the top cover 12 and start the motor 2. The motor 2 will drive the movable shaft 21 to rotate. When the movable shaft 21 rotates, it will drive the fixed plate 22, the movable plate 23 and the insertion rods 24 to rotate synchronously, so that the insertion rods 24 carry the storage box 15 to rotate inside the fixed bed body 1, thereby shaking the iron-based desulfurizer placed inside the storage box 15. When the movable shaft 21 rotates under the drive of the motor 2, multiple thin ropes 3 at the bottom of the movable shaft 21 will rotate synchronously. At this time, the elastic balls 31 at the bottom of the thin ropes 3 The storage box 15 is continuously struck. Production personnel inject combusted blast furnace gas into the fixed bed body 1 through the air inlet pipe 13. At this time, a large amount of gas will come into contact with the flow restrictor plate 41 and squeeze the flow restrictor plate 41, causing the flow restrictor plate 41 to rotate on the support rod 4. Then the gas enters the interior of the fixed bed body 1 through the flow restrictor plate 41. At the same time, when the desulfurized gas is discharged from the gas outlet pipe 14, it will squeeze out the flow restrictor plate 41 inside the gas outlet pipe 14, causing the flow restrictor plate 41 to rotate on the support rod 4. Then the gas flows to the outside of the fixed bed body 1 through the flow restrictor plate 41. Because there is a torsion spring between the support rod 4 and the flow restrictor plate 41, when there is no gas compression, the flow restrictor plate 41 will seal the air inlet pipe 13 and the gas outlet pipe 14, keeping the interior of the fixed bed body 1 in a closed state.After the desulfurization operation is completed or when production personnel find that no chemical reaction is occurring inside the fixed bed body 1, the movable window 51 is pulled to open the storage box 15, the iron-based desulfurizing agent inside the storage box 15 is removed and replaced, and then the movable window 51 is closed. At this time, under the action of the first magnetic plate 52 and the second magnetic plate 53, the movable window 51 will tightly close to the outside of the storage box 15.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A fixed-bed iron-based desulfurization device for blast furnace gas, comprising a fixed-bed body (1); characterized in that: The fixed bed body (1) has an inspection window (11) in the middle of its side wall; the fixed bed body (1) has a top cover (12) on its top side wall; the top side wall has a detection component; the top cover (12) has a rotating component in the middle of its side wall; the rotating component has a striking component on its bottom side wall; the fixed bed body (1) has an air inlet pipe (13) fixed in the middle of its side wall; the top cover (12) has an air outlet pipe (14) fixed in the top side wall; the air inlet pipe (13) and the air outlet pipe (14) A limiting component is provided in the middle of the inner side wall; a storage box (15) is rotatably connected in the middle of the inner side wall of the fixed bed body (1); a plurality of sieve holes (16) are opened in the middle of the side wall of the storage box (15); the fixed bed body (1), the air inlet pipe (13), the air outlet pipe (14), the storage box (15) and the sieve holes (16) are all hollow and connected; the striking component is located above the storage box (15); an opening and closing component is provided in the middle of the side wall of the storage box (15).
2. A fixed-bed iron-based desulfurization device for blast furnace gas according to claim 1, characterized in that: The rotating assembly includes a motor (2); the motor (2) is mounted on the top of the top cover (12); a movable shaft (21) is fixed to the output end of the motor (2); a plurality of fixed plates (22) are fixedly connected to the middle of the side wall of the movable shaft (21); a movable plate (23) is rotatably connected to the middle of the side wall of the fixed plate (22); a torsion spring is provided between the fixed plate (22) and the movable plate (23); an insertion rod (24) is rotatably connected to the middle of the side wall of the movable plate (23); a torsion spring is provided between the insertion rod (24) and the movable plate (23); the insertion rod (24) and the sieve hole (16) are correspondingly arranged.
3. A fixed-bed iron-based desulfurization device for blast furnace gas according to claim 1, characterized in that: The striking component includes a thin rope (3); there are multiple thin ropes (3) arranged in a circular array at the bottom of the movable shaft (21); an elastic ball (31) is fixed to the end of the thin rope (3); both the thin rope (3) and the elastic ball (31) are made of elastic material; the elastic ball (31) is located above the storage box (15).
4. A fixed-bed iron-based desulfurization device for blast furnace gas according to claim 1, characterized in that: The limiting component includes multiple support rods (4); the multiple support rods (4) are symmetrically arranged inside the air inlet pipe (13) and the air outlet pipe (14); the middle of the side wall of the support rod (4) is rotatably connected to a flow limiting plate (41); a torsion spring is provided between the support rod (4) and the flow limiting plate (41).
5. A fixed-bed iron-based desulfurization device for blast furnace gas according to claim 1, characterized in that: The opening and closing assembly includes a slot (5); the slot (5) is opened on the side wall of the storage box (15); a movable window (51) is slidably connected to the middle of the inner side wall of the slot (5); a first magnetic plate (52) is fixed to the middle of the side wall of the movable window (51); a second magnetic plate (53) is fixed to the middle of the inner side wall of the storage box (15); the first magnetic plate (52) and the second magnetic plate (53) are magnetically attracted to each other.
6. A fixed-bed iron-based desulfurization device for blast furnace gas according to claim 1, characterized in that: The detection assembly includes a gas detector (6); the gas detector (6) is mounted on the top of the top cover (12).
7. A fixed-bed iron-based desulfurization device for blast furnace gas according to claim 6, characterized in that: A sealing ring (7) is fixed in the middle of the side wall of the top cover (12); the sealing ring (7) is located between the top cover (12) and the movable shaft (21); the sealing ring (7) is made of elastic material.