Corrosion-resistant sealing protection device for an electric dust precipitator

Abstract

The application discloses a kind of electric dust removal equipment corrosion-resistant sealing protection device, including shell cylinder, the center of shell cylinder is equipped with rapping shaft, the top of rapping shaft is fixedly installed with rapping device, the outer surface of rapping shaft is equipped with sealing element at the bottom end of shell cylinder, the outer surface of sealing element is uniformly equipped with sealing fastener, the middle part of the outer surface of rapping shaft is movably equipped with floating disc, the bottom end of floating disc is fixedly installed with bottom block;Rapping device runs and drives rapping shaft to vibrate up and down, the extrusion between the bottom block and the top surface of floating disc makes sealing fastener move transversely to increase the fastening force of sealing element, realize automatic compensation wear;When rapping shaft vibrates up and down, the lubricating grease in lubricating grease storage cavity flows out and forms oil seal by the repeated transverse movement of bottom block in movable cavity one, improve the sealing property while reducing wear;The cooperation of lock block and lock tooth can position the position of floating disc, improve the stability of automatic compensation sealing property.

Description

Technical Field

[0001] This invention relates to the field of electrostatic precipitator sealing technology, and in particular to a corrosion-resistant sealing and protection device for electrostatic precipitator equipment. Background Technology

[0002] The technical principle of an electrostatic precipitator is as follows: High-voltage ionization of flue gas is achieved through a negatively charged discharge electrode, generating a large number of negative ions. These negative ions adhere to the dust particles in the flue gas, causing them to become negatively charged. Due to the principle of opposite charges attracting, the negatively charged dust particles move towards the grounded anode collecting plate and are captured by it. When the anode collecting plate needs cleaning, a motor installed outside the precipitator drives a vibrating shaft to rotate. The vibrating shaft extends into the precipitator through the side wall panel, and a vibrating hammer is installed on the shaft. The rotation of the shaft causes the vibrating hammer to strike the vibrating rod at the bottom of the anode plate, causing the anode plate to vibrate and thus dislodging the dust from it.

[0003] However, during operation, the rapping hammer generates high-frequency up-and-down reciprocating vibrations, causing dynamic friction at the partition between the rapping shaft and the electrostatic precipitator. After prolonged use, the seals at this location are prone to failure due to severe wear on the contact surface between the seals and the rapping shaft. Furthermore, timely replacement during operation is impossible, hindering automatic compensation. This results in cold air leaking into the electrostatic precipitator through poorly sealed areas, potentially causing condensation on the insulators. It also affects the flue gas dust removal efficiency and leads to the leakage of corrosive flue gas. The following improvements are made to address these issues. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a corrosion-resistant sealing and protection device for electrostatic precipitators.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A corrosion-resistant sealing and protective device for electrostatic precipitators includes an outer shell. A vibrating shaft is installed at the center of the outer shell, and a vibrator is fixedly installed at the top of the vibrating shaft. A sealing element located at the bottom end of the outer shell is fitted onto the outer surface of the vibrating shaft. Sealing fasteners are uniformly fitted onto the outer surface of the sealing element. A floating disk is movably fitted onto the middle of the outer surface of the vibrating shaft. A bottom block is fixedly installed at the bottom end of the floating disk. A connecting rod is hinged between the bottom block and the sealing fasteners. A movable cavity is opened inside the vibrating shaft. A movable block is movably installed inside the movable cavity. A lower pressure block is fixedly installed at one end of the movable block. The end of the lower pressure block extends to the outside of the vibrating shaft. A spring is elastically connected inside the movable cavity between the movable block and the inner wall of the movable cavity. A lower sealing sleeve located at the top end of the outer shell is fitted onto the outer surface of the vibrating shaft. A spring is elastically fitted onto the outer surface of the vibrating shaft between the lower sealing sleeve and the floating disk.

[0006] Preferably, the vibrating shaft has a grease storage cavity and a connecting oil passage inside, the lower pressure block has an L-shaped oil passage inside, the L-shaped oil passage is connected to the grease storage cavity through the connecting oil passage, and the vibrating shaft has a drainage groove on its outer surface.

[0007] Preferably, an inner shell cylinder is fixedly installed inside the outer shell cylinder, and vertical plates are symmetrically fixedly installed on the inner side of the inner shell cylinder. Locking teeth are fixedly installed on the inner side of the vertical plates. A movable cavity two is opened inside the floating disk, and a movable block two is movably installed inside the movable cavity two. A locking block is fixedly installed at one end of the movable block two, and the end of the locking block extends to the outside of the floating disk to match the locking teeth. A spring two is elastically connected inside the movable cavity two between the movable block two and the inner wall of the movable cavity two.

[0008] Preferably, the outer shell is filled with a heat insulation layer located outside the inner shell, an upper sealing sleeve is installed above the lower sealing sleeve and fitted onto the outer surface of the vibrating shaft, and a sealing filler layer is filled between the lower sealing sleeve and the vibrating shaft.

[0009] Preferably, the top of the floating disk is provided with an oil storage tank, and the bottom of the oil storage tank is designed with a slope.

[0010] Preferably, a limiting slide rail is fixedly installed at the bottom of the inner cavity of the outer shell cylinder. There are three sets of limiting slide rails, which are located below three sealing fasteners respectively. The sealing fasteners are slidably connected to the limiting slide rails.

[0011] Preferably, the locking teeth are designed with their tips facing down and the locking blocks are designed with their tips facing up, and the locking blocks and locking teeth mesh with each other.

[0012] Preferably, the number of sealing fasteners is three, the three sealing fasteners are elliptical, the ends of the three sealing fasteners near the vibrating shaft are evenly in contact with the outer surface of the seal, and the three sealing fasteners are staggered vertically.

[0013] Preferably, the outer surface of the vibrating shaft is provided with a rubber stopper that communicates with the grease storage cavity, and the grease is added by inserting a syringe into the rubber stopper.

[0014] The present invention has the following beneficial effects: 1. This invention utilizes the vibration of the vibrating shaft during operation of the vibrator. When the vibrating shaft moves downward, it causes the lower pressure block to move as well. The pressure between the lower pressure block and the top surface of the floating disk causes the lower pressure block to retract into the active cavity. At the same time, a brief downward impact force is applied to the floating disk. The impact force is transmitted to the sealing fasteners through the connecting rod, causing all three sealing fasteners to move laterally. This increases the tightening force on the seal through the other ends of the three sealing fasteners, making the seal fit more tightly with the outer surface of the vibrating shaft. This achieves automatic wear compensation and effectively solves the problem in the prior art where the seals fail to seal due to severe wear after long-term use and cannot be replaced in time. It also avoids the phenomenon of cold air leaking into the electrostatic precipitator, causing condensation on the insulators, affecting the dust removal effect of the flue gas, and causing corrosive flue gas to overflow from the electrostatic precipitator.

[0015] 2. In this invention, when the vibrating shaft vibrates up and down, the floating disc squeezes the lower block to move laterally repeatedly within the movable cavity. When the lower block is fully extended, the L-shaped oil passage is misaligned to the right of the connecting oil passage. When the lower block is fully retracted into the movable cavity, the L-shaped oil passage is misaligned to the left of the connecting oil passage. Therefore, a very small amount of grease will flow out of the grease storage cavity during each extension and retraction operation. The outflowing grease can flow downwards through the drainage groove into the oil storage tank to form an oil seal, thereby improving the sealing performance and effectively reducing the wear between the vibrating shaft and the floating disc, extending the service life of the device. At the same time, the grease can be easily replenished through the rubber stopper, ensuring the continuous and stable operation of the device and preventing corrosive fumes from overflowing upwards from the electrostatic precipitator.

[0016] 3. In this invention, when the downward pressing block squeezes the floating disc, the locking block and locking teeth engage to retract the locking block into the second movable cavity. After the floating disc moves downward a unit distance, the locking block is reset to engage with the locking teeth again under the elastic force of the second spring, thereby positioning the floating disc and keeping the fastening force of the sealing fastener on the floating disc constant. This effectively improves the stability of the automatic compensation sealing. At the same time, the design of the locking teeth tip pointing downward and the locking block tip pointing upward ensures that the floating disc can only move downward in one direction and cannot retract in the opposite direction, ensuring that the sealing fastener can continue to provide a stable fastening force after the seal wears. Attached Figure Description

[0017] Figure 1 This is a cross-sectional planar structural diagram of the present invention; Figure 2 For the present invention Figure 1 A magnified view of the structure at point A in the middle; Figure 3 For the present invention Figure 1 A magnified schematic diagram of the structure at point B in the middle; Figure 4 For the present invention Figure 1 A magnified schematic diagram of the structure at point C in the middle; Figure 5 This is a schematic diagram of the floating disk structure of the present invention; Figure 6 This is a schematic diagram of the locking tooth structure of the present invention; Figure 7 This is a schematic diagram of the disassembled structure of the sealing fastener and floating disk of the present invention; Figure 8 This is a schematic diagram of the drainage channel structure of the present invention.

[0018] In the diagram: 1. Outer shell; 2. Vibrating shaft; 3. Vibrator; 4. Seal; 5. Sealing fastener; 6. Floating disc; 7. Base block; 8. Connecting rod; 9. Movable cavity one; 10. Movable block one; 11. Lower pressure block; 12. Spring one; 13. Grease storage cavity; 14. L-shaped oil passage; 15. Connecting oil passage; 16. Drainage groove; 17. Inner shell; 18. Vertical plate; 19. Movable cavity two; 20. Movable block two; 21. Locking block; 22. Spring two; 23. Spring three; 24. Insulation layer; 25. Limiting slide rail; 26. Lower sealing sleeve; 27. Upper sealing sleeve; 28. Sealing filler layer; 29. ​​Oil reservoir; 30. Locking teeth. Detailed Implementation

[0019] 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. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Reference Figures 1-8A corrosion-resistant sealing and protective device for electrostatic precipitators includes an outer shell cylinder 1. A vibrating shaft 2 is installed at the center of the outer shell cylinder 1. A vibrator 3 is fixedly installed on the top of the vibrating shaft 2. A sealing element 4 located at the bottom end of the outer shell cylinder 1 is sleeved on the outer surface of the vibrating shaft 2. Sealing fasteners 5 are evenly sleeved on the outer surface of the sealing element 4. A floating disk 6 is movably sleeved in the middle of the outer surface of the vibrating shaft 2. A bottom block 7 is fixedly installed at the bottom end of the floating disk 6. A connecting rod 8 is hinged between the bottom block 7 and the sealing fasteners 5. A movable cavity 9 is opened inside the vibrating shaft 2. A movable block 10 is movably installed inside the movable cavity 9. A lower pressure block 11 is fixedly installed at one end of the movable block 10. The end of the lower pressure block 11 extends to the outside of the vibrating shaft 2. A spring 12 is elastically connected inside the movable cavity 9 between the movable block 10 and the inner wall of the movable cavity 9. A lower sealing sleeve 26 located at the top end of the outer shell cylinder 1 is sleeved on the outer surface of the vibrating shaft 2. A lower sealing sleeve 26 located at the bottom end of the outer shell cylinder 1 is elastically sleeved on the outer surface of the vibrating shaft 2. Spring 23 between sealing sleeve 26 and floating disk 6; when vibrator 3 is running, it drives vibrating shaft 2 to vibrate up and down. When vibrating shaft 2 moves downward, it drives lower pressure block 11 to move together. Through the squeezing between lower pressure block 11 and the top surface of floating disk 6, lower pressure block 11 is retracted into movable cavity 9. At the same time, a short and downward impact force is applied to floating disk 6. The impact force is transmitted to sealing fastener 5 through connecting rod 8, causing all three sealing fasteners 5 to move laterally. Thus, the other ends of the three sealing fasteners 5 jointly increase the fastening force on sealing element 4, making sealing element 4 fit more tightly with the outer surface of vibrating shaft 2, realizing automatic wear compensation. If sealing element 4 is not worn, floating disk 6 does not descend and lower pressure block 11 directly retracts into movable cavity 9. When vibrating shaft 2 moves upward, under the reverse elastic force of spring 23 and the cooperation between locking block 21 and locking tooth 30, floating disk 6 can be prevented from moving in the opposite direction. When lower pressure block 11 is at the upper end of floating disk 6, it is reset under the action of spring 12. Specifically, when the vibrating shaft 2 is stationary, there is an initial gap of 0.5mm to 2mm between the end of the lower pressure block 11 and the top surface of the floating disk 6. When the vibrator 3 is started, the vibrating shaft 2 vibrates downward at high frequency, and the lower pressure block 11 first overcomes this gap to contact the floating disk 6. If the seal 4 is not worn, the supporting force of the floating disk 6 under the spring 23 is greater than the instantaneous impact force of the lower pressure block 11. The lower pressure block 11 only overcomes the elastic force of the spring 12 and retracts into the active cavity 9, and the floating disk 6 does not produce a net displacement. If the seal 4 is worn, causing the downward resistance of the vibrating shaft 2 to decrease, the impact force of the lower pressure block 11 will overcome the preload of the spring 23 and push the floating disk 6 downward to produce a unit compensation displacement, thereby driving the sealing fastener 5 to feed laterally through the connecting rod 8.

[0021] Specifically, when the lower pressure block 11 reciprocates laterally within the movable cavity 9, the oil inlet of the L-shaped oil passage 14 and the connecting oil passage 15 are spatially staggered. During the process of the lower pressure block 11 being compressed back into the movable cavity 9 by the floating disc 6, and during the process of the lower pressure block 11 extending outwards and resetting under the action of the spring 12, the L-shaped oil passage 14 and the connecting oil passage 15 are instantaneously connected. Under the slight pressure difference generated by the vibration of the rapping shaft 2, the grease in the grease storage cavity 13 flows into the L-shaped oil passage 14 through the connecting oil passage 15 and drips out from the end port of the lower pressure block 11. Then, the L-shaped oil passage 14 and the connecting oil passage 15 quickly disengage, forming a mechanical self-sealing structure. Since the drainage groove 16 has a spiral descending structure and the groove depth is only 0.3mm to 0.8mm, the viscous resistance of the grease itself can effectively prevent the outflowing grease from "back-suction" during the reset process, ensuring that the grease flows continuously in one direction into the oil storage tank 29 to form a stable oil film seal.

[0022] The vibrating shaft 2 has a grease storage cavity 13 and a connecting oil passage 15 inside. The lower pressure block 11 has an L-shaped oil passage 14 inside. The L-shaped oil passage 14 is connected to the grease storage cavity 13 through the connecting oil passage 15. The outer surface of the vibrating shaft 2 has a drainage groove 16. When the vibrating shaft 2 vibrates up and down, the floating disk 6 squeezes the lower pressure block 11 to move laterally repeatedly in the movable cavity 9. After the lower pressure block 11 is fully extended, the L-shaped oil passage 14 is misaligned to the right of the connecting oil passage 15. After the lower pressure block 11 is fully retracted into the movable cavity 9, the L-shaped oil passage 14 is misaligned to the left of the connecting oil passage 15. Therefore, a very small amount of grease in the grease storage cavity 13 will flow out during each extension and retraction operation. The outflowing grease can flow down to the oil storage tank 29 through the drainage groove 16 to form an oil seal, which improves the sealing performance and reduces the wear between the vibrating shaft 2 and the floating disk 6. The outer shell 1 has an inner shell 17 fixedly installed inside. Vertical plates 18 are symmetrically fixedly installed on the inner side of the inner shell 17. Locking teeth 30 are fixedly installed on the inner side of the vertical plates 18. The floating disk 6 has a second movable cavity 19 inside. A second movable block 20 is movably installed inside the second movable cavity 19. A locking block 21 is fixedly installed at one end of the second movable block 20. The end of the locking block 21 extends to the outside of the floating disk 6 and is adapted to the locking teeth 30. The second movable cavity 19 is elastically connected to a device located at the movable cavity 19. Spring 22 is located between moving block 20 and the inner wall of movable cavity 29. When the pressing block 11 presses the floating disk 6 downward, locking block 21 and locking tooth 30 cooperate to retract locking block 21 into movable cavity 29. After the floating disk 6 moves downward a unit distance, the locking block 21 is reset to engage with locking tooth 30 again under the elastic force of spring 22, thereby positioning the floating disk 6 and keeping the fastening force of sealing fastener 5 on floating disk 6 constant, thus improving the stability of automatic compensation sealing. The outer shell 1 is filled with a heat insulation layer 24 located outside the inner shell 17. An upper sealing sleeve 27 is installed above the lower sealing sleeve 26 and sleeved on the outer surface of the vibrating shaft 2. A sealing filler layer 28 is filled between the lower sealing sleeve 26 and the vibrating shaft 2. The heat insulation layer 24 can effectively reduce heat loss. The upper sealing sleeve 27 and the lower sealing sleeve 26, together with the sealing filler layer 28, can further improve the sealing performance between the vibrating shaft 2 and the outer shell 1. The floating disk 6 has an oil reservoir 29 on its top, and the bottom of the oil reservoir 29 is designed with a slope. The sloped design of the oil reservoir 29 facilitates the natural flow and accumulation of grease under the action of gravity, which is conducive to the formation of a stable oil seal. Among them, a limiting slide rail 25 is fixedly installed at the bottom of the inner cavity of the outer shell cylinder 1. There are three sets of limiting slide rails 25, which are located below the three sealing fasteners 5 respectively. The sealing fasteners 5 are slidably connected to the limiting slide rails 25. The limiting slide rails 25 can guide and limit the lateral movement of the sealing fasteners 5, ensuring that the three sealing fasteners 5 can move smoothly towards the sealing element 4. Among them, the locking tooth 30 is designed with its tip facing down and the locking block 21 is designed with its tip facing up. The locking block 21 and the locking tooth 30 mesh with each other. This design allows the locking block 21 to smoothly pass over the locking tooth 30 during the downward movement of the floating disk 6. When the floating disk 6 tends to move upward, the tip of the locking block 21 and the inverted tip of the locking tooth 30 jam together, thereby preventing the floating disk 6 from moving in the opposite direction. Among them, there are three sealing fasteners 5. The three sealing fasteners 5 are elliptical. The ends of the three sealing fasteners 5 near the vibrating shaft 2 are evenly in contact with the outer surface of the seal 4 and the three sealing fasteners 5 are staggered vertically. The elliptical design can make the contact area between the sealing fasteners 5 and the seal 4 larger, and the staggered vertical distribution makes the tightening force of the three sealing fasteners 5 on the seal 4 more uniform. The outer surface of the rapping shaft 2 is provided with a rubber stopper that communicates with the grease storage cavity 13. The grease is added by inserting a syringe into the rubber stopper. This design makes it convenient for operators to replenish the grease during the operation of the device or during shutdown maintenance, ensuring that there is always enough grease in the grease storage cavity 13.

[0023] In use, the vibrator 3, once activated, drives the vibrating shaft 2 to generate high-frequency reciprocating vibrations. As the vibrating shaft 2 moves downwards, it drives the lower pressure block 11 downwards as well. The end of the lower pressure block 11 first contacts the top surface of the floating disk 6. Under the pressure of this contact, the lower pressure block 11 overcomes the elastic force of the spring 12 and retracts into the movable cavity 9. Simultaneously, it applies a downward impact force to the floating disk 6, causing it to move downwards. This motion is transmitted to the three sealing fasteners 5 via the bottom block 7 and the connecting rod 8. This causes the three sealing fasteners 5 to move laterally along the limiting slide rail 25 toward the seal 4, thereby increasing the tightening force on the seal 4 and making the seal 4 fit more tightly against the outer surface of the vibrating shaft 2; preventing corrosive flue gas from leaking out of the electrostatic precipitator; at the same time, when the floating disc 6 moves downward, the locking block 21 retracts into the movable cavity 19 under the pressure of the locking teeth 30. After the floating disc 6 moves downward by one unit distance, the locking block 21 pops out again under the action of the spring 22 and bites the next level locking teeth 30. The rapping shaft 2 vibrates up and down, achieving unidirectional positioning of the floating disk 6. During this process, the lower pressure block 11 is repeatedly squeezed by the floating disk 6 and reciprocates laterally within the movable cavity 9. Each time the lower pressure block 11 retracts and extends, a brief connection and misalignment are formed between the L-shaped oil passage 14 and the connecting oil passage 15. This causes a very small amount of grease in the grease storage cavity 13 to be carried out during each extension and retraction. The carried-out grease flows down the drainage groove 16 to the oil storage tank 29 at the top of the floating disk 6. An oil seal is formed between the contact surfaces of shaft 2 and floating disk 6, which improves the sealing performance and reduces friction and wear between them. When the vibrating shaft 2 moves upward, the floating disk 6 tends to move upward under the elastic force of spring 33. However, due to the inverted meshing design of locking block 21 and locking tooth 30, the floating disk 6 cannot retract upward, thus ensuring that the fastening force of the sealing fastener 5 on the sealing element 4 will not decrease due to the retraction of floating disk 6 after the sealing element 4 is worn, and realizing automatic compensation for the wear of the sealing element 4.

[0024] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A corrosion-resistant sealing and protective device for electrostatic precipitators, comprising an outer shell (1), characterized in that, A vibrating shaft (2) is installed at the center of the outer shell cylinder (1). A vibrator (3) is fixedly installed on the top of the vibrating shaft (2). A sealing element (4) located at the bottom end of the outer shell cylinder (1) is sleeved on the outer surface of the vibrating shaft (2). Sealing fasteners (5) are uniformly sleeved on the outer surface of the sealing element (4). A floating disk (6) is movably sleeved in the middle of the outer surface of the vibrating shaft (2). A bottom block (7) is fixedly installed at the bottom end of the floating disk (6). A connecting rod (8) is hinged between the bottom block (7) and the sealing fasteners (5). A movable cavity (9) is opened inside the vibrating shaft (2). The movable cavity 1 (9) is movably installed with a movable block 1 (10). A lower pressure block (11) is fixedly installed at one end of the movable block 1 (10). The end of the lower pressure block (11) extends to the outside of the vibrating shaft (2). The movable cavity 1 (9) is elastically connected with a spring 1 (12) located between the movable block 1 (10) and the inner wall of the movable cavity 1 (9). The outer surface of the vibrating shaft (2) is fitted with a lower sealing sleeve (26) located at the top of the outer shell cylinder (1). The outer surface of the vibrating shaft (2) is elastically fitted with a spring 3 (23) located between the lower sealing sleeve (26) and the floating disk (6).

2. The corrosion-resistant sealing and protective device for electrostatic precipitators according to claim 1, characterized in that, The inside of the vibrating shaft (2) is provided with a grease storage cavity (13) and a connecting oil passage (15). The inside of the lower pressure block (11) is provided with an L-shaped oil passage (14). The L-shaped oil passage (14) is connected to the grease storage cavity (13) through the connecting oil passage (15). The outer surface of the vibrating shaft (2) is provided with a drainage groove (16).

3. The corrosion-resistant sealing and protective device for electrostatic precipitator equipment according to claim 1, characterized in that, An inner shell cylinder (17) is fixedly installed inside the outer shell cylinder (1). A vertical plate (18) is symmetrically fixedly installed on the inner side of the inner shell cylinder (17). A locking tooth (30) is fixedly installed on the inner side of the vertical plate (18). A movable cavity two (19) is opened inside the floating disk (6). A movable block two (20) is movably installed inside the movable cavity two (19). A locking block (21) is fixedly installed at one end of the movable block two (20). The end of the locking block (21) extends to the outside of the floating disk (6) and is adapted to the locking tooth (30). A spring two (22) is elastically connected inside the movable cavity two (19) between the movable block two (20) and the inner wall of the movable cavity two (19).

4. The corrosion-resistant sealing and protective device for electrostatic precipitator equipment according to claim 1, characterized in that, The outer shell cylinder (1) is filled with a heat insulation layer (24) located outside the inner shell cylinder (17). An upper sealing sleeve (27) is installed above the lower sealing sleeve (26) and sleeved on the outer surface of the vibrating shaft (2). A sealing filling layer (28) is filled between the lower sealing sleeve (26) and the vibrating shaft (2).

5. The corrosion-resistant sealing and protective device for electrostatic precipitator equipment according to claim 1, characterized in that, The top of the floating disk (6) is provided with an oil storage tank (29), and the bottom of the oil storage tank (29) is designed with a slope.

6. The corrosion-resistant sealing and protective device for electrostatic precipitator equipment according to claim 1, characterized in that, The bottom of the inner cavity of the outer shell (1) is fixedly installed with a limiting slide rail (25). There are three sets of limiting slide rails (25) and they are located below three sealing fasteners (5). The sealing fasteners (5) are slidably connected to the limiting slide rails (25).

7. The corrosion-resistant sealing and protective device for electrostatic precipitators according to claim 3, characterized in that, The locking teeth (30) are designed with their tips facing down and the locking blocks (21) are designed with their tips facing up. The locking blocks (21) and the locking teeth (30) mesh with each other.

8. The corrosion-resistant sealing and protective device for electrostatic precipitator equipment according to claim 1, characterized in that, The number of the sealing fasteners (5) is three. The three sealing fasteners (5) are elliptical. The ends of the three sealing fasteners (5) near the vibrating shaft (2) are evenly in contact with the outer surface of the seal (4) and the three sealing fasteners (5) are staggered vertically.

9. The corrosion-resistant sealing and protective device for electrostatic precipitator equipment according to claim 1, characterized in that, The outer surface of the vibrating shaft (2) is provided with a rubber stopper that communicates with the grease storage cavity (13). The grease is added by inserting a syringe into the rubber stopper.

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