A desulfurization spray tower

Abstract

The utility model discloses a desulfurization spray tower relates to desulfurization spray tower technical field, including spray tower body, the wave crest groove and drive groove are seted up in the spray tower body, a plurality of drive motors are fixedly installed in the drive groove, the drive end fixed mounting of drive motor has driving gear, the drive groove is rotatably connected with the driven gear that meshes on driving gear, the driven gear fixedly installed has the guide frame in, the guide frame is seted up in the guide hole, the stirring rod is arranged in the guide hole and slides, and the stirring rod can slide up and down along the track of wave crest groove, the spray tower body fixedly installs the spray guide frame, and the utility model discloses the cooperation of wave crest groove and guide hole realizes the stirring rod driven by driven gear and rotates simultaneously, and moves up and down along wave crest groove, fully stirs the slurry of desulfurization spray tower bottom even, solves the problem that traditional stirring is only single direction, and the difficult problem of sediment cleaning, ensures that desulfurization reaction is stable and efficient.

Description

Technical Field

[0001] This utility model relates to the field of desulfurization spray tower technology, specifically a desulfurization spray tower. Background Technology

[0002] A desulfurization tower is a tower-type device used to treat industrial waste gas for desulfurization. Initially, desulfurization towers were most widely used, constructed primarily of granite. They utilize the principle of water film desulfurization and dust removal, and are also known as granite water film desulfurization and dust collectors or marble water film desulfurization and dust collectors. Their advantages include ease of maintenance and the ability to achieve both dust removal and desulfurization (denitrification) effects by using different dust removal agents. With the development of fiberglass technology, desulfurization towers are gradually being manufactured using fiberglass. Compared to granite desulfurization towers, fiberglass desulfurization towers are lower in cost, easier to process, rust-free, and lightweight, thus becoming the future development trend for desulfurization towers. Additionally, 316L stainless steel offers three major advantages: corrosion resistance, high temperature resistance, and wear resistance, making it another important trend in desulfurization tower development. For example, the utility model patent with announcement number CN120242714A discloses a flue gas desulfurization spray tower, which includes a circulation tower, a spray chamber, a demister chamber and an exhaust chamber arranged sequentially from bottom to top; the circulation tower is rotatably connected to a stirring shaft, and multiple stirring blades are fixed on the stirring shaft; a recovery box is provided at the side end of the circulation tower; the water supply pipe is connected to a first water supply pipe and a second water supply pipe, the first water supply pipe supplies water to the spray chamber and the second water supply pipe supplies water to the demister chamber, which can separate and treat the circulating water and treat the accumulated sediment, so as to avoid the sediment from clogging the pipes and affecting the spray desulfurization; However, the internal mixing device of this spray tower uses a traditional unidirectional agitator, which can only ensure that the slurry does not settle, but cannot achieve the effect of fully mixing the slurry. In addition, the transmission part of the agitator is in direct contact with the slurry, which corrodes quickly and requires frequent replacement of the transmission structure. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a desulfurization spray tower that solves the technical problems of existing devices using unidirectional agitators, which can only ensure that the slurry does not settle but cannot achieve the effect of fully mixing the slurry. Furthermore, the transmission part of the agitator is in direct contact with the slurry, resulting in rapid corrosion and requiring frequent replacement of the transmission structure.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a desulfurization spray tower, comprising a spray tower body, wherein a wave crest groove and a transmission groove are formed within the spray tower body, a plurality of drive motors are fixedly installed within the transmission groove, a drive gear is fixedly installed at the drive end of each drive motor, a driven gear is rotatably connected within the transmission groove and meshing with the drive gear, a guide frame is fixedly installed within the driven gear, a guide hole is formed within the guide frame, a stirring rod is slidably arranged within the guide hole, and the stirring rod can slide up and down along the trajectory of the wave crest groove, and a spray guide frame is fixedly installed within the spray tower body.

[0005] Preferably, a support rod is fixedly installed at the connecting end of the stirring rod, and a rotating block is fixedly installed at the connecting end of the support rod. A rotating sleeve that rolls in the crest groove is rotatably connected to the rotating block.

[0006] Preferably, a spring fixing seat is fixedly installed on the outer wall of the stirring rod, and a tension spring is provided on the spring fixing seat. The other end of the tension spring is fixedly installed on the upper wall of the guide frame and corresponds to the guide hole.

[0007] Preferably, a fixing frame is fixedly installed on the stirring rod, and a stirring rack is installed inside the fixing frame.

[0008] Preferably, the stirring rack has stirring holes.

[0009] Preferably, a planar bearing for supporting the driven gear is fixedly installed at the bottom of the transmission groove.

[0010] Preferably, the bottom of the spray tower body is provided with a rounded chamfer for easy cleaning.

[0011] Beneficial effects This utility model provides a desulfurization spray tower, which has the following beneficial effects: By combining the corrugated groove and the guide hole, the driven gear drives the stirring rod to rotate while moving up and down along the corrugated groove, which fully mixes the slurry at the bottom of the desulfurization spray tower, solving the problems of traditional stirring in only one direction and difficulty in cleaning sedimentation, and ensuring stable and efficient desulfurization reaction. The sprayed slurry is directly guided into the slurry at the bottom of the desulfurization spray tower by the spray guide frame, avoiding the direct spraying of the slurry into the crest grooves and transmission grooves on the side wall of the desulfurization spray tower, which would accelerate the corrosion rate and extend the service life. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the wave crest groove structure of this utility model; Figure 3This is a schematic diagram of the driven gear structure of this utility model; Figure 4 This is a schematic diagram of the stirring rod structure of this utility model.

[0013] In the diagram: 1. Spray tower body; 2. Corrugated crest groove; 3. Transmission groove; 4. Drive motor; 5. Drive gear; 6. Driven gear; 7. Guide frame; 8. Guide hole; 9. Stirring rod; 10. Spray guide frame; 11. Support rod; 12. Rotating block; 13. Rotating sleeve; 14. Spring fixing seat; 15. Tension spring; 16. Fixing frame; 17. Stirring frame; 18. Stirring hole; 19. Surface bearing; 20. Rounded chamfer. Detailed Implementation

[0014] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0015] Please see Figures 1-4 A desulfurization spray tower includes a spray tower body 1. The spray tower body 1 has a wave crest groove 2 and a transmission groove 3. Several drive motors 4 are fixedly installed in the transmission groove 3. A drive gear 5 is fixedly installed at the drive end of the drive motor 4. A driven gear 6 meshes with the drive gear 5 in the transmission groove 3. A guide frame 7 is fixedly installed in the driven gear 6. A guide hole 8 is opened in the guide frame 7. A stirring rod 9 is slidably arranged in the guide hole 8. The stirring rod 9 can slide up and down along the trajectory of the wave crest groove 2. A spray guide frame 10 is fixedly installed in the spray tower body 1.

[0016] Please see Figure 4 A support rod 11 is fixedly installed at the connecting end of the stirring rod 9, and a rotating block 12 is fixedly installed at the connecting end of the support rod 11. A rotating sleeve 13 that rolls inside the wave crest groove 2 is rotatably connected to the rotating block 12. In use, the support rod 11 provides a stable support structure for the rotating block 12 and the rotating sleeve 13, ensuring that the rotating sleeve 13 is always in contact with the inner wall of the wave crest groove 2. The rotating sleeve 13 converts the sliding friction between the stirring rod 9 and the wave crest groove 2 into rolling friction, which greatly reduces the wear of both and reduces the resistance to movement, allowing the stirring rod 9 to move smoothly along the wave contour of the wave crest groove 2, ensuring that the stirring range can cover different areas inside the spray tower.

[0017] Please see Figure 4 A spring fixing seat 14 is fixedly installed on the outer wall of the stirring rod 9. A tension spring 15 is provided on the spring fixing seat 14. The other end of the tension spring 15 is fixedly installed on the upper wall of the guide frame 7 and corresponds to the guide hole 8. In use, the tension spring 15 applies a continuous tension force to the stirring rod 9 through the spring fixing seat 14, so that the stirring rod 9 generates a downward tension force at the top of the wave crest groove 2 and an upward thrust force at the bottom of the wave crest groove 2, further ensuring that the rotating sleeve 13 is always in contact with the inner wall of the wave crest groove 2.

[0018] Please see Figure 4 A fixing frame 16 is fixedly installed on the stirring rod 9, and a stirring frame 17 is installed inside the fixing frame 16. When in use, the fixing frame 16 provides a solid installation base for the stirring frame 17 to prevent the stirring frame 17 from loosening or falling off during high-speed stirring.

[0019] Please see Figure 4 The stirring frame 17 is provided with stirring holes 18. When in use, stirring holes 18 can reduce the resistance of the spray liquid encountered by the stirring frame 17 when it moves, avoid deformation of the stirring rod 9 or the guide frame 7 due to excessive resistance, and extend the service life of the components.

[0020] Please see Figure 3 A flat bearing 19 for supporting the driven gear 6 is fixedly installed at the bottom of the transmission groove 3. In use, the flat bearing 19 can provide precise bottom support for the driven gear 6, ensuring that the driven gear 6 always maintains a good meshing state with the driving gear 5. At the same time, the flat bearing 19 can significantly reduce the frictional resistance between the driven gear 6 and the bottom of the transmission groove 3 when the driven gear 6 rotates, making the driven gear 6 rotate more smoothly, reducing the load loss of the drive motor 4, and extending the service life of the drive motor 4 and the driven gear 6.

[0021] Please see Figure 1 The bottom of the spray tower body 1 is provided with a rounded chamfer 20 for easy cleaning. During use, the rounded chamfer 20 can eliminate the right-angle dead corners at the bottom of the spray tower body 1, and prevent gypsum deposits or impurities generated during the desulfurization process from accumulating in corners that are difficult to clean. During daily cleaning, the flushing liquid can flow smoothly along the inclined surface of the rounded chamfer 20, thoroughly flushing the bottom deposits to the slag discharge port, reducing the difficulty of cleaning, reducing manual maintenance costs, and ensuring the cleanliness of the inside of the spray tower body 1, so as to avoid impurities affecting the desulfurization reaction efficiency.

[0022] Example 1: In this example, the cooperation of the wave crest groove 2 and the guide hole 8 enables the driven gear 6 to drive the stirring rod 9 to rotate while moving up and down along the wave crest groove 2, so as to fully stir the slurry at the bottom of the desulfurization spray tower.

[0023] Specifically, several drive motors 4 are started, and the drive end of the drive motor 4 drives the drive gear 5 to rotate clockwise. The drive gear 5 meshes with the driven gear 6, causing the driven gear 6 to rotate slowly around the center of the transmission groove 3. The flat bearing 19 at the bottom of the driven gear 6 reduces the frictional resistance between it and the bottom of the transmission groove 3, making the rotation smoother. At the same time, it prevents the driven gear from deforming due to its own weight, ensuring that it always meshes precisely with the drive gear. The guide frame 7 fixed inside the driven gear 6 rotates synchronously with the driven gear. The guide hole 8 on the guide frame 7 drives the stirring rod 9 to make a circular motion around the center of the tower, laying the foundation for subsequent compound stirring.

[0024] When the stirring rod 9 makes a circular motion, the rotating sleeve 13 at its connecting end always fits against the inner wall of the wave crest groove 2. The wave contour of the wave crest groove 2 forces the rotating sleeve 13 to roll along the groove wall (the rotating sleeve converts sliding friction into rolling friction, reducing the wear rate), and drives the stirring rod 9 to slide up and down along the guide hole 8 through the rotating block 12 and the support rod 11. At this time, the tension spring 15 plays a key role: when the stirring rod rises with the wave crest groove, the tension spring is stretched to generate a reverse tension force, ensuring that the rotating sleeve 13 does not detach from the upper edge of the wave crest groove; when the stirring rod falls with the wave crest groove, the tension spring contracts to assist the stirring rod in resetting, avoiding the rotating sleeve from hitting the groove wall due to gravity, thus realizing a compound motion of "circular rotation + axial up and down movement". During this period, the plane bearing 19 continuously provides stable support for the driven gear 6, avoiding the radial force deviation of the driven gear caused by the up and down movement of the stirring rod, ensuring the smooth operation of the entire transmission system.

[0025] The fixed frame 16 on the stirring rod 9 drives the stirring frame 17 to move synchronously, expanding the contact area with the slurry. The stirring holes 18 on the stirring frame 17 play a dual role: first, to reduce the slurry resistance during stirring (to prevent deformation of the stirring rod or guide frame); second, to allow the slurry to form cross-convection through the holes, breaking the laminar flow state of the slurry. The desulfurization gypsum deposited at the bottom of the tower is carried up by the stirring frame and fully mixed with the fresh desulfurization slurry (such as limestone slurry), ensuring uniform concentration of the desulfurizing agent. After stirring continuously for 10-15 minutes, the drive motor 4 is turned off. At this time, there is no obvious sedimentation in the slurry at the bottom of the tower. When the desulfurizing agent reacts with the sulfur-containing flue gas in the subsequent process, the desulfurization efficiency will not fluctuate due to uneven concentration.

[0026] Example 2: In this example, the sprayed slurry is directly introduced into the slurry at the bottom of the desulfurization spray tower through the spray guide frame 10, avoiding the direct spraying of the wave crest groove 2 and transmission groove in the side wall of the desulfurization spray tower into the slurry, which would accelerate the corrosion rate.

[0027] Specifically, this embodiment addresses the problem of "sprayed slurry easily splashing onto transmission components, corroding equipment, and having low mixing efficiency." It details the flow guiding process of the spray guide frame, combining it with the mixing system to achieve precise slurry delivery and efficient reaction, while protecting the transmission structure, reducing maintenance costs, and solving the pain points of "running, leaking, and dripping" and equipment corrosion in traditional spraying.

[0028] The desulfurization spray system is started, and the desulfurization slurry (such as limestone slurry with a concentration of 10%-15%) is sprayed out through the spray pipe at the top of the tower and falls directly onto the guide plate of the spray guide frame 10. The inclined structure of the guide plate guides the slurry to flow along the preset path, avoiding the slurry from splashing into the crest trough 2 or the transmission trough 3. The slurry slowly flows into the slurry area at the bottom of the tower along the guide plate and is initially mixed with the original slurry at the bottom of the tower. At the same time, the drive motor 4 is started (same as the transmission process in Example 1), and the stirring rod 9 performs a compound motion to quickly mix the fresh slurry that is guided down with the slurry at the bottom of the tower. The stirring holes 18 of the stirring frame 17 promote the convection of the slurry.

[0029] During the spraying process, the spray guide frame 10 always isolates the slurry from the transmission components. After the desulfurization operation is completed, the sediment at the bottom of the tower needs to be cleaned: open the slag discharge valve at the bottom of the tower and introduce high-pressure flushing water into the tower. The flushing water flows smoothly along the rounded chamfer 20 at the bottom of the spray tower body 1, without any right-angle dead corners. The gypsum or impurities deposited at the bottom of the tower are thoroughly flushed to the slag discharge port. After cleaning, check the spray guide frame 10: if there is gypsum attached to the surface of the guide plate, clean the guide hole with a soft brush to ensure smooth flow during the next spray. At the same time, check the tension of the tension spring 15. If it is loose, replace it with a new tension spring to ensure the stability of the subsequent stirring rod movement.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A desulfurization spray tower, characterized in that, The system includes a spray tower body (1), which has a wave crest groove (2) and a transmission groove (3) inside. Several drive motors (4) are fixedly installed in the transmission groove (3). A drive gear (5) is fixedly installed at the drive end of the drive motor (4). A driven gear (6) meshes with the drive gear (5) in the transmission groove (3). A guide frame (7) is fixedly installed in the driven gear (6). A guide hole (8) is opened in the guide frame (7). A stirring rod (9) is slidably arranged in the guide hole (8). The stirring rod (9) can slide up and down along the trajectory of the wave crest groove (2). A spray guide frame (10) is fixedly installed in the spray tower body (1).

2. The desulfurization spray tower according to claim 1, characterized in that, A support rod (11) is fixedly installed at the connecting end of the stirring rod (9), and a rotating block (12) is fixedly installed at the connecting end of the support rod (11). A rotating sleeve (13) that rolls in the crest groove (2) is rotatably connected to the rotating block (12).

3. A desulfurization spray tower according to claim 1, characterized in that, A spring fixing seat (14) is fixedly installed on the outer wall of the stirring rod (9). A tension spring (15) is provided on the spring fixing seat (14). The other end of the tension spring (15) is fixedly installed on the upper wall of the guide frame (7) and corresponds to the guide hole (8).

4. A desulfurization spray tower according to claim 1, characterized in that, A fixing frame (16) is fixedly installed on the stirring rod (9), and a stirring rack (17) is installed inside the fixing frame (16).

5. A desulfurization spray tower according to claim 4, characterized in that, The stirring rack (17) has stirring holes (18).

6. A desulfurization spray tower according to claim 1, characterized in that, The bottom of the transmission groove (3) is fixedly equipped with a plane bearing (19) for supporting the driven gear (6).

7. A desulfurization spray tower according to claim 1, characterized in that, The bottom of the spray tower body (1) is provided with a rounded chamfer (20) for easy cleaning.

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