Self-cleaning demister

Abstract

The utility model relates to the technical field of demisters, in particular to a self-cleaning demister which comprises a fixed cover, the fixed cover is fixedly arranged in an absorption tower body, a demister body is arranged in the fixed cover, a bottom plate is fixedly arranged at the bottom of the fixed cover, and through grooves of semicircular structures are formed in the left side and the right side in the bottom plate. Rotatable movable sealing cover plates of semicircular structures are arranged at the positions, corresponding to the two sets of through grooves, of the lower side of the bottom plate, a plurality of sets of ultrasonic generators are installed on the bottom faces of the movable sealing cover plates, and hanging rings are fixedly arranged at the positions, corresponding to the first winding roller, the second winding roller, the third winding roller and the fourth winding roller, of the upper surfaces of the two sets of movable sealing cover plates; the first winding roller, the second winding roller, the third winding roller and the fourth winding roller are all connected with cables in a winding mode. According to the demister, the demister can be sealed through the cleaning structure, water is injected into the demister, and then ultrasonic waves are used for cleaning, so that dirt deposited on the demister is effectively removed, and the demister is prevented from scaling and being blocked.

Description

Technical Field

[0001] This utility model relates to the field of demister technology, and more specifically, to a self-cleaning demister. Background Technology

[0002] During the operation of wet desulfurization systems, "mist" particles with a diameter of 10-60 μm are easily generated. This "mist" not only contains moisture but also dissolved sulfuric acid, sulfates, sulfur dioxide, sulfur trioxide, etc., which can easily cause contamination and corrosion of fans, gas-air precipitators (GGH), and tail flue gas ducts. Therefore, the flue gas after wet desulfurization must be demisted before leaving the absorption tower, which is generally accomplished by a demister installed at the top of the desulfurization tower.

[0003] During operation, tiny droplets carried by flue gas can easily deposit on the demister blades, leading to scaling and blockage over time, thus affecting demisting efficiency and equipment operation. Current technology typically involves a dedicated flushing system within the absorption tower, including flushing nozzles, pipes, and valves, to circulate and clean the demister. However, due to the complex structure of the demister, the flushing water flow struggles to remove dirt from the internal corners, making cleaning difficult. Furthermore, the flushing water's force within the demister is relatively weak, failing to completely remove the attached dirt, resulting in poor cleaning effectiveness.

[0004] Accordingly, this application proposes a self-cleaning demister. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a self-cleaning demister, which solves the problems mentioned in the background section.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A self-cleaning demister includes a fixed cover and a demister body. The fixed cover is fixed inside the absorption tower body. The demister body is disposed inside the fixed cover. A base plate is fixed to the bottom of the fixed cover. Semi-circular through slots are formed on both the left and right sides of the base plate. Rotatable semi-circular movable sealing covers are provided on the lower side of the base plate corresponding to the two sets of through slots. Multiple ultrasonic generators are installed on the bottom surface of the movable sealing covers. A crossbeam plate is longitudinally fixed at the center of the upper end face of the fixed cover. A No. 3 winding roller is installed on the crossbeam plate. A No. 4 winding roller is installed on the crossbeam plate to the right of the No. 3 winding roller. A No. 1 winding roller is fixed to the left side of the upper end face of the fixed cover. A No. 2 winding roller is fixed to the right side of the upper end face of the fixed cover. The absorption tower body is circumferentially... A servo motor is installed on the side of the absorption tower body. A servo motor is installed on the right side of the tower body ring. A servo motor is installed on the rear side of the absorption tower body ring. The servo motors 1, 2, 3, and 4 are rotatably connected to the winding rollers 1, 2, 3, and 4 respectively via drive shafts. Lifting rings are fixed on the upper surface of the two sets of movable sealing cover plates at positions corresponding to the winding rollers 1, 2, 3, and 4. Cables are wound around the winding rollers 1, 2, 3, and 4, and the lower ends of the winding rollers 1, 2, 3, and 4 are fixedly connected to the corresponding lifting rings.

[0008] Furthermore, multiple sets of support plates are uniformly fixed on the inner wall of the fixed cover near the bottom surface, and the positions of the support plates are staggered from the positions of the cables, with the bottom of the demister body placed on the support plates.

[0009] Furthermore, a water injection pipe is provided on the right rear side of the annular surface of the absorption tower body. One end of the water injection pipe extends into the interior of the fixed cover, and the other end is connected to an external water pump.

[0010] Furthermore, a liquid level sensor is installed on the crossbeam plate, with its lower end extending into the interior of the fixed cover.

[0011] Furthermore, each set of cables is provided with fixed pulleys arranged on both the upper and lower sides along its path, and the cables are connected to the lifting rings via the fixed pulleys.

[0012] Furthermore, a sealing gasket is fixedly provided on the bottom surface of the base plate near the edge of the through groove, and a sealing groove corresponding to the sealing gasket is opened inside the movable sealing cover plate.

[0013] Furthermore, a hinge seat is fixedly provided at the bottom of the base plate, and a rectangular hinge groove is provided inside the hinge seat. A hinge plate is fixedly provided on the movable sealing cover plate near the hinge seat, and the hinge plate is rotatably connected to the hinge groove inside the hinge seat through a pin.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This utility model provides a demister with a self-cleaning function, which can seal the demister, fill it with water, and then use ultrasonic waves to clean it, thereby effectively removing the dirt deposited on the demister and avoiding scaling and clogging of the demister.

[0016] 2. This utility model uses multiple ultrasonic generators installed on the bottom surface of the movable sealing cover to effectively remove dirt from the inside of the demister body by utilizing the vibration and cavitation effect of ultrasonic waves, especially in hard-to-clean areas such as corners, thus improving cleaning efficiency and effectiveness.

[0017] 3. This utility model achieves automatic control of the No. 1, No. 2, No. 3, and No. 4 take-up rollers through the drive of servo motors No. 1, No. 2, No. 3, and No. 4, making the cleaning process more automated and intelligent, reducing manual intervention, and improving work efficiency.

[0018] 4. In this utility model, each set of cables is equipped with fixed pulleys arranged on the upper and lower sides along its path, which ensures the stable movement of the cables in the vertical direction, prevents the cables from swaying and deviating, helps to protect the integrity of the cables, extends their service life, and ensures the smooth progress of the cleaning process.

[0019] 5. In this utility model, a sealing gasket is fixed on the bottom surface of the base plate near the edge of the through groove. Together with the sealing groove inside the movable sealing cover, it can seal the gap between the base plate and the movable sealing cover, which helps to prevent water leakage inside the fixed cover and ensures stable operation during the cleaning process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of this utility model from another angle.

[0022] Figure 3 This is a partial structural schematic diagram of the present invention.

[0023] Figure 4 This is a partial structural diagram of the present invention from another angle.

[0024] Figure 5 This is a partial sectional view of the present invention.

[0025] Figure 6 This is a schematic diagram of the structure of the fixing cover in this utility model.

[0026] Figure 7 This is a schematic diagram showing the disassembled structure of the bottom plate and the movable sealing cover plate in this utility model.

[0027] Figure 8 This is a schematic diagram of the movable sealing cover plate in this utility model.

[0028] In the diagram: 1. Absorption tower body; 2. Fixed cover; 3. Water injection pipe; 4. Servo motor No. 1; 5. Servo motor No. 2; 6. Servo motor No. 3; 7. Servo motor No. 4; 8. Drive shaft; 9. Winding roller No. 1; 10. Winding roller No. 2; 11. Winding roller No. 3; 12. Winding roller No. 4; 13. Crossbeam plate; 14. Demister body; 15. Liquid level sensor; 16. Movable sealing cover plate; 17. Ultrasonic generator; 18. Hinge seat; 19. Cable; 20. Fixed pulley; 21. Base plate; 22. Support plate; 23. Through groove; 24. Sealing gasket; 25. Sealing groove; 26. Lifting ring; 27. Hinge plate; 28. Hinge groove. Detailed Implementation

[0029] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0030] Example:

[0031] like Figures 1 to 8As shown, a self-cleaning demister includes a fixed cover 2 and a demister body 14. The fixed cover 2 is fixed inside the absorption tower body 1, and the demister body 14 is disposed inside the fixed cover 2. A base plate 21 is fixed at the bottom of the fixed cover 2. Semi-circular through slots 23 are opened on both the left and right sides inside the base plate 21. Rotatable semi-circular movable sealing covers 16 are provided on the lower side of the base plate 21 corresponding to the two sets of through slots 23. Multiple sets of ultrasonic generators 17 are installed on the bottom surface of the movable sealing covers 16. A crossbeam plate 13 is longitudinally fixed at the center of the upper end face. A No. 3 winding roller 11 is installed on the crossbeam plate 13. A No. 4 winding roller 12 is installed on the crossbeam plate 13 to the right of the No. 3 winding roller 11. A No. 1 winding roller 9 is fixed on the left side of the upper end face of the fixed cover 2. A No. 2 winding roller 10 is fixed on the right side of the upper end face of the fixed cover 2. A No. 1 servo motor 4 is installed on the left side of the annular surface of the absorption tower body 1. A No. 2 servo motor 5 is installed on the right side of the annular surface of the absorption tower body 1. A No. 3 servo motor 6 and a No. 4 servo motor are located on the rear side of the annular surface of the absorption tower body 1. Motor 7, servo motor 4 (first), servo motor 5 (second), servo motor 6 (third), and servo motor 7 (fourth) are all rotatably connected to take-up roller 9 (first), take-up roller 10 (second), take-up roller 11 (third), and take-up roller 12 (fourth) via drive shaft 8. Lifting rings 26 are fixed to the upper surfaces of the two sets of movable sealing covers 16 at positions corresponding to take-up roller 9 (first), take-up roller 10 (second), take-up roller 11 (third), and take-up roller 12. Cables 19 are wound and connected to all the take-up rollers 12, and the lower ends of the first take-up roller 9, the second take-up roller 10, the third take-up roller 11 and the fourth take-up roller 12 are fixedly connected to the corresponding lifting rings 26. This design solves the problem in the prior art that due to the complex structure of the demister, the water flow of the flushing system is difficult to remove the dirt in the corners inside the demister, making cleaning difficult, and the flushing water flow generates less force inside the demister, making it difficult to completely remove the dirt attached to it, resulting in poor cleaning effect.

[0032] In this embodiment, multiple sets of support plates 22 are uniformly fixed on the inner wall of the fixed cover 2 near the bottom surface, and the positions of the support plates 22 are staggered from the positions of the cable 19. The bottom of the demister body 14 is placed on the support plates 22. The support plates 22 provide a stable support foundation for the demister body 14, realizing the positioning support of the demister body 14. The staggered position of the support plates 22 from the positions of the cable 19 can prevent the cable 19 from interfering with the support plates 22 during movement, thereby protecting the integrity of the cable 19 and the support plates 22, while ensuring that the cable 19 can move smoothly without being obstructed or damaged by the support plates 22.

[0033] In this embodiment, a water injection pipe 3 is provided on the right rear side of the annular surface of the absorption tower body 1. One end of the water injection pipe 3 extends into the interior of the fixed cover 2, and the other end is connected to an external water pump. The water injection pipe 3 is used to inject water into the interior of the fixed cover 2, providing a continuous and stable water source for the cleaning process of the demister, ensuring that the cleaning work can proceed smoothly.

[0034] In this embodiment, a liquid level sensor 15 is installed on the crossbeam plate 13, with its lower end extending into the fixed cover 2. The liquid level sensor 15 is a device used to measure the height or depth of liquid or solid materials. The liquid level sensor 15 can monitor the water level changes inside the fixed cover 2 in real time, ensuring that the water level is always kept within a suitable range.

[0035] In this embodiment, each set of cables 19 is provided with fixed pulleys 20 arranged on both the upper and lower sides along its path. The cables 19 are connected to the lifting rings 26 via the fixed pulleys 20. The fixed pulleys 20 ensure the stable movement of the cables 19 in the vertical direction, preventing the cables 19 from swaying or deviating. At the same time, the fixed pulleys 20 can guide the connection path of the cables 19, playing a limiting and guiding role.

[0036] In this embodiment, a sealing gasket 24 is fixedly provided on the bottom surface of the base plate 21 near the edge of the through groove 23, and a sealing groove 25 corresponding to the sealing gasket 24 is provided inside the movable sealing cover 16. The sealing gasket 24 and the sealing groove 25 can seal the gap between the base plate 21 and the movable sealing cover 16, thereby sealing the bottom of the fixed cover 2, preventing water leakage inside the fixed cover 2, and ensuring stable operation during the cleaning process.

[0037] In this embodiment, a hinge seat 18 is fixedly provided at the bottom of the base plate 21. A rectangular hinge groove 28 is formed inside the hinge seat 18. A hinge plate 27 is fixedly provided on the movable sealing cover 16 near the hinge seat 18. The hinge plate 27 is rotatably connected to the hinge groove 28 inside the hinge seat 18 via a pin. The hinge plate 27 and the hinge seat 18 provide a rotational support point for the movable sealing cover 16, allowing it to rotate and thus achieving opening and closing control of the movable sealing cover 16. Simultaneously, the rectangular hinge groove 28 allows the pin to move up and down, enabling it to continue moving upwards with the cable 19 after the movable sealing cover 16 is closed, ensuring a tight connection between the movable sealing cover 16 and the base plate 21.

[0038] The working principle of this self-cleaning demister:

[0039] In actual use, four sets of servo motors are activated, driving the corresponding take-up rollers to rotate and tighten the cable 19, closing the movable sealing cover 16. At this time, the bottom of the fixed cover 2 is sealed. Then, the water pump is started, injecting water into the fixed cover 2 through the water injection pipe 3 until the level sensor 15 detects that the water level has reached the set value. The ultrasonic generator 17 is then activated to begin cleaning the demister body 14. Ultrasonic vibrations act on the surface and interior of the demister body 14, effectively removing dirt from the surface and interior, especially in hard-to-clean areas such as corners, through cavitation and micro-jet effects. Under the action of ultrasonic vibrations, the dirt on the surface and interior of the demister body 14 is effectively removed, achieving cleaning of the demister body 14. After cleaning, the ultrasonic generator 17 is turned off, and the servo motors are activated, driving the take-up rollers to rotate in the opposite direction, releasing the cable 19 and causing the movable sealing cover 16 to rotate and open. After the movable sealing cover 16 is opened, the wastewater inside the fixed cover 2 after cleaning is discharged through the through groove 23 on the bottom plate 21.

[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A self-cleaning demister comprising a fixed shroud (2) and a demister body (14), characterised in that: The fixed cover (2) is fixedly arranged in the absorption tower body (1), the inside of the fixed cover (2) is provided with a demister body (14), the bottom of the fixed cover (2) is fixedly provided with a bottom plate (21), the inside of the bottom plate (21) is provided with a semicircular structure through slot (23) on the left and right sides, the bottom plate (21) is provided with a rotatable semicircular structure movable sealing cover plate (16) at the corresponding position of the two groups of through slots (23) on the lower side, the movable sealing cover plate (16) is provided with a plurality of ultrasonic generators (17) on the bottom surface, the upper end surface of the fixed cover (2) is vertically fixedly provided with a cross beam plate (13), the cross beam plate (13) is provided with a third winding roller (11), the cross beam plate (13) on the right side of the third winding roller (11) is provided with a fourth winding roller (12), the upper end surface of the fixed cover (2) is fixedly provided with a first winding roller (9) on the left side, the upper end surface of the fixed cover (2) is fixedly provided with a second winding roller (10) on the right side, the left side of the ring surface of the absorption tower body (1) is provided with a first servo motor (4), the right side of the ring surface of the absorption tower body (1) is provided with a second servo motor (5), the rear side of the ring surface of the absorption tower body (1) is provided with a third servo motor (6) and a fourth servo motor (7), the first servo motor (4), the second servo motor (5), the third servo motor (6) and the fourth servo motor (7) are rotatably connected with the first winding roller (9), the second winding roller (10), the third winding roller (11) and the fourth winding roller (12) through the driving shaft (8) respectively, the upper surfaces of the two groups of movable sealing cover plates (16) are fixedly provided with lifting rings (26) at the corresponding positions of the first winding roller (9), the second winding roller (10), the third winding roller (11) and the fourth winding roller (12), the first winding roller (9), the second winding roller (10), the third winding roller (11) and the fourth winding roller (12) are all wound with a cable (19), and the lower ends of the first winding roller (9), the second winding roller (10), the third winding roller (11) and the fourth winding roller (12) are fixedly connected to the corresponding lifting rings (26).

2. The self-cleaning demister of claim 1, wherein: A plurality of support plates (22) are uniformly fixed on the inner wall of the fixed cover (2) near the bottom surface, and the positions of the support plates (22) are staggered with the positions of the cables (19).

3. The self-cleaning demister of claim 1, wherein: The rear right side of the ring surface of the absorption tower body (1) is provided with a water injection pipe (3), one end of the water injection pipe (3) extends into the fixed cover (2), and the other end is connected with an external water pump.

4. The self-cleaning demister of claim 1, wherein: The cross beam plate (13) is provided with a liquid level sensor (15), and the lower end thereof extends into the fixed cover (2).

5. The self-cleaning demister of claim 1, wherein: Each group of cables (19) is provided with upper and lower pulleys (20) arranged on both sides, and the cables (19) are connected to the lifting rings (26) through the pulleys (20).

6. The self-cleaning demister of claim 1, wherein: A sealing gasket (24) is fixedly arranged on the bottom surface of the bottom plate (21) near the edge of the through slot (23), and a sealing groove (25) matched with the sealing gasket (24) is formed in the inside of the movable sealing cover plate (16).

7. The self-cleaning demister of claim 1, wherein: The bottom of the bottom plate (21) is fixed with a hinge seat (18), the hinge seat (18) is internally provided with a hinge groove (28) with a rectangular structure, the movable sealing cover plate (16) is fixed with a hinge plate (27) on one side close to the hinge seat (18), and the hinge plate (27) is rotationally connected with the hinge groove (28) in the hinge seat (18) through a pin shaft.

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