Polar plate rapping device for electrostatic dust collector

Abstract

The utility model discloses a polar plate rapping device for an electrostatic dust collector, which comprises a shell, a rapping mechanism arranged in the shell, an auxiliary plate which is arranged in the shell and is matched with the rapping mechanism to operate, and a driving mechanism which is fixedly arranged outside the shell and is connected with the rapping mechanism, the first bearing sleeve, the second bearing sleeve and the third bearing sleeve are sequentially and fixedly installed on the rapping transmission shaft through pin keys, and the rapping assemblies are distributed and installed on the rapping transmission shaft at equal intervals. The device can operate efficiently, reliably and enduringly, and the ash removal effect of the dust remover and the long-period stable operation of equipment are ensured.

Description

Technical Field

[0001] This utility model specifically relates to an electrode plate rapping device for an electrostatic precipitator. Background Technology

[0002] An electrostatic precipitator is a device that uses electrostatic purification to capture dust from flue gas. It is an ideal equipment for purifying industrial waste gas. Its purification work is mainly accomplished by two systems: a discharge electrode and a precipitation electrode. When a high-voltage direct current is applied between the two electrodes, anions and cations are generated in the electrode space. These cations act on the surface of the waste gas particles passing through the electrostatic field, causing them to move towards the electrode with the opposite polarity under the influence of the electric field force and settle on the electrode, thus achieving dust collection. Both electrode systems have rapping devices. When the rapping hammers periodically strike the two electrode systems, the dust adhering to the electrodes is shaken off and falls into the lower ash hopper, where it is discharged from the machine through the ash discharge device. The purified waste gas is then discharged into the atmosphere through the chimney, thus completing the flue gas purification process.

[0003] Currently, most rapping devices used in electrostatic precipitators employ side-drive rapping devices with geared motors. However, such devices suffer from uneven rapping acceleration transmission and lateral shear force. Furthermore, the hammer needs to be driven by the rotational acceleration of the drive shaft to swing and strike the rapping rod, making it difficult for the hammer to align with the impact center of the rapping rod. This results in poor force distribution on the rapping rod, failing to ensure the reliability of rapping power transmission and the accuracy of the action, which is detrimental to achieving effective dust removal. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an electrode plate rapping device for electrostatic precipitators.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] An electrostatic precipitator plate rapping device includes a housing, a rapping mechanism installed inside the housing, an auxiliary plate installed inside the housing and cooperating with the rapping mechanism, and a drive mechanism fixedly installed outside the housing and connected to the rapping mechanism. The rapping mechanism includes a rapping drive shaft, a first bearing sleeve, a second bearing seat sleeve, and a third bearing sleeve sequentially fixedly installed on the rapping drive shaft by pins and keys, and rapping components equidistantly distributed on the rapping drive shaft.

[0007] Preferably, the first bearing sleeve and the third bearing sleeve are fixedly installed at both ends of the vibratory drive shaft and are fixedly installed in conjunction with the housing;

[0008] Furthermore, the second bearing housing is fixedly installed in the middle part of the vibratory drive shaft.

[0009] Preferably, the rapping assembly includes a rapping cam, a cam sleeve fitted on the surface of the rapping cam, a fixing baffle that matches the cam sleeve to prevent the cam sleeve from loosening, and a rapping rod hinged to the lower end of the cam sleeve.

[0010] Furthermore, the vibrating cam has a keyway-equipped shaft mounting hole near its edge.

[0011] Furthermore, the side of the cam sleeve is integrally formed with an anti-disengagement strip, and the other side is welded with a fixing lug with a screw hole. The lower end of the cam sleeve is also welded with a hinge lug.

[0012] Furthermore, the upper end of the vibrator is integrally formed with a hinge joint.

[0013] Preferably, a support base is welded onto the side of the housing facing the drive mechanism.

[0014] Preferably, the auxiliary plate includes an auxiliary plate body, limiting holes formed on the auxiliary plate body in the same number as the number of rapping components, a support plate welded to the center of the upper part of the auxiliary plate body, and a bearing seat welded to the upper end of the support plate.

[0015] Preferably, the drive mechanism includes a reducer and a drive motor fixedly connected to the reducer.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. The first bearing sleeve, the second bearing housing sleeve, and the third bearing sleeve are installed at the two ends and the middle key position of the rapping drive shaft and fixed to the housing. This greatly enhances the rigidity and stability of the rapping drive shaft, effectively prevents the bending deformation of the rapping drive shaft due to its own weight and rapping impact during operation, and ensures smooth and reliable transmission. The second bearing housing sleeve is precisely placed in the bearing housing of the auxiliary plate, providing an additional strong support point located in the middle of the rapping drive shaft, further distributing the load and suppressing vibration. This is the core design to prevent deformation of the rapping drive shaft.

[0018] 2. The cam directly drives the cam sleeve mounted on it, and the cam sleeve then drives the vibrating rod through a hinge. This can efficiently convert the rotational motion into linear reciprocating vibration motion. The anti-disengagement strip on the side of the cam sleeve and the fixed baffle fixed by screws work together to firmly restrict the cam sleeve on the cam, effectively preventing the cam sleeve from loosening or shifting during violent up and down movements, ensuring continuous and reliable power transmission. The hinge ear at the lower end of the cam sleeve and the hinge joint at the upper end of the vibrating rod are connected by a hinge shaft, which can ensure the effective up and down movement of the force, while allowing for small angle changes, adapting to small deviations during installation and operation, and reducing stress concentration.

[0019] 3. Limiting holes are opened on the auxiliary plate to match the number of rapping components, providing precise linear guidance for the rapping rods. This ensures that the rapping rods can only move up and down along the designed direction, avoiding lateral swaying during movement. This ensures that the rapping rods can accurately and vertically strike the predetermined position on the electrode plate each time, improving the dust removal efficiency and effect. In addition, it reduces the additional lateral force on the hinge lugs and hinge joints caused by swaying, extending the life of the components.

[0020] 4. The structure of the rapping cam, cam sleeve, fixed baffle and rapping rod that make up the rapping assembly is clear and is installed on the drive shaft by pins and keys. This design makes it easy to assemble, disassemble and replace individual damaged rapping units without disassembling the entire drive shaft system, which greatly reduces maintenance difficulty and downtime. Moreover, the equidistantly distributed rapping assemblies can ensure that the rapping force is evenly distributed along the length of the electrode plate and the dust removal effect is consistent. Attached Figure Description

[0021] Figure 1 This is a structural diagram of an electrode plate rapping device for an electrostatic precipitator according to the present invention;

[0022] Figure 2 for Figure 1 The front view;

[0023] Figure 3 for Figure 1 Exploded view;

[0024] Figure 4 for Figure 3 Exploded view of the oscillating beater assembly. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0026] Example

[0027] An electrostatic precipitator plate rapping device, such as Figure 1-4 As shown, it includes a housing 1, a vibrating mechanism 2 installed inside the housing 1, an auxiliary plate 3 installed inside the housing 1 and operating in conjunction with the vibrating mechanism 2, and a drive mechanism 4 fixedly installed outside the housing 1 and connected to the vibrating mechanism 2.

[0028] In this embodiment, a support base 11 is welded to the side of the housing 1 facing the drive mechanism 4.

[0029] The rapping mechanism 2 includes a rapping drive shaft 21, a first bearing sleeve 22, a second bearing seat sleeve 23 and a third bearing sleeve 24 that are fixedly mounted on the rapping drive shaft 21 in sequence by key pins, and rapping components 25 that are equidistantly mounted on the rapping drive shaft 21.

[0030] In the structure of the rapping mechanism 2, the first bearing sleeve 22 and the third bearing sleeve 24 are respectively fixedly installed at both ends of the rapping drive shaft 21 and are fixedly installed in conjunction with the housing 1, so as to facilitate the drive mechanism 4 to drive the rapping drive shaft 21 for transmission; in addition, the second bearing seat sleeve 23 is fixedly installed in the middle part of the rapping drive shaft 21.

[0031] It should be further explained that the vibration drive shaft is equipped with a first bearing sleeve and a third bearing sleeve at both ends, and a second bearing seat sleeve at the key middle position. The vibration drive shaft is fixed to the housing, which greatly enhances the rigidity and stability of the vibration drive shaft. This effectively prevents the vibration drive shaft from bending and deforming due to its own weight and vibration impact during operation, ensuring smooth and reliable transmission. The second bearing seat sleeve is precisely placed in the bearing seat of the auxiliary plate, providing an additional strong support point located in the middle of the vibration drive shaft, further distributing the load and suppressing vibration. This is the core design to prevent deformation of the vibration drive shaft.

[0032] In the structure of the rapping mechanism 2, the rapping assembly 25 includes a rapping cam 251, a cam sleeve 252 fitted on the surface of the rapping cam 251, a fixing baffle 253 assembled with the cam sleeve 252 to prevent the cam sleeve 252 from loosening, and a rapping rod 254 hinged to the lower end of the cam sleeve 252.

[0033] In the structure of the rapping assembly 25, the rapping cam 251 has a keyway-equipped shaft mounting hole 2511 near its edge. Specifically, the rapping cam 251 is mounted on the rapping drive shaft 21 through the shaft mounting hole 2511, so that the rapping drive shaft 21 drives the rapping cam 251 to rotate.

[0034] In the structure of the rapping assembly 25, the side of the cam sleeve 252 is integrally formed with an anti-disengagement strip 2521, and the other side is welded with a fixing lug 2522 with a screw hole. The lower end of the cam sleeve 252 is also welded with a hinge lug 2523. Specifically, after the cam sleeve 252 is fitted onto the rapping cam 251, the fixing baffle 253 is fixed onto the cam sleeve 252 by screws, so that the rapping cam 251 can prevent disengagement when it drives the cam sleeve 252 to move up and down. The hinge lug 2523 facilitates the hinged installation of the rapping rod 254 and the cam sleeve 252.

[0035] In the structure of the rapping assembly 25, the upper end of the rapping rod 254 is integrally formed with a hinge joint 2541. Specifically, the rapping rod 254 is connected to the hinge ear 2523 through the hinge joint 2541. During the rotation of the rapping cam 251, the cam sleeve 252 is raised or lowered. When the rapping cam 251 is driven by the rapping transmission shaft 21, the cam sleeve 252 can be driven to move up and down. Thus, the cam sleeve 252 drives the rapping rod 254 to move up and down reciprocally to strike the electrode plate inside the electrostatic precipitator, causing the electrode plate to vibrate and cleaning the dust adsorbed on the electrode plate.

[0036] It should be further explained that the rapping cam directly drives the cam sleeve mounted on it, and the cam sleeve then drives the rapping rod through a hinge. This can efficiently convert the rotational motion into linear reciprocating rapping motion. The anti-disengagement strip on the side of the cam sleeve and the fixing baffle fixed by screws work together to firmly restrict the cam sleeve to the rapping cam, effectively preventing the cam sleeve from loosening or shifting during violent up and down movements, ensuring continuous and reliable power transmission. The hinge ear at the lower end of the cam sleeve and the hinge joint at the upper end of the rapping rod are connected by a hinge shaft, which can ensure the effective up and down movement of force, while allowing for small angle changes, adapting to minor deviations during installation and operation, and reducing stress concentration.

[0037] The auxiliary plate 3 includes an auxiliary plate body 31, limiting holes 32 opened on the auxiliary plate body 31 and the same number as the rapping assembly 25, a support plate 33 welded to the center of the upper part of the auxiliary plate body 31, and a bearing seat 34 welded to the upper end of the support plate 33. Specifically, the bearing seat 34 is used to place the second bearing seat sleeve 23, which can help support the rapping drive shaft 21 and prevent the rapping drive shaft 21 from bending and deforming due to excessive length. In addition, the limiting holes 32 can guide the rapping rod 254 and prevent the rapping rod 254 from swinging and failing to strike the electrode plate inside the electrostatic precipitator correctly when the cam sleeve 252 drives the rapping rod 254 to move up and down.

[0038] It should be further explained that the auxiliary plate has limiting holes that match the number of rapping components, providing precise linear guidance for the rapping rods. This ensures that the rapping rods can only move up and down along the designed direction, preventing lateral swaying during movement. This guarantees that the rapping rods can accurately and vertically strike the predetermined position on the electrode plate each time, improving cleaning efficiency and effectiveness. In addition, it reduces the additional lateral force on the hinge lugs and hinge joints caused by swaying, extending the life of the components.

[0039] The drive mechanism 4 includes a reducer 41 and a drive motor 42 fixedly connected to the reducer 41. Specifically, the output end of the drive motor 42 is connected to the reducer 41, while the reducer 41 is fixedly installed on the support base 11, and the output end of the reducer 41 is fixedly connected to the vibrating drive shaft 21 through a coupling.

[0040] The above embodiments of this utility model are not intended to limit the scope of protection of this utility model. The implementation of this utility model is not limited thereto. All other modifications, substitutions or alterations made to the above structure of this utility model based on the above content of this utility model and in accordance with the common technical knowledge and conventional means in the field, without departing from the basic technical idea of ​​this utility model, shall fall within the scope of protection of this utility model.

Claims

1. A plate rapping device for an electrostatic precipitator, comprising a housing, a rapping mechanism installed inside the housing, an auxiliary plate installed inside the housing and cooperating with the rapping mechanism, and a drive mechanism fixedly installed outside the housing and connected to the rapping mechanism, characterized in that, The rapping mechanism includes a rapping drive shaft, a first bearing sleeve, a second bearing housing sleeve, and a third bearing sleeve that are sequentially fixed on the rapping drive shaft by key pins, and rapping components that are equidistantly distributed on the rapping drive shaft.

2. The electrode plate rapping device for an electrostatic precipitator according to claim 1, characterized in that, The first bearing sleeve and the third bearing sleeve are respectively fixedly installed at both ends of the vibratory drive shaft, and are fixedly installed in conjunction with the housing; The second bearing housing is fixedly installed in the middle of the vibratory drive shaft.

3. The electrode plate rapping device for an electrostatic precipitator according to claim 1, characterized in that, The rapping assembly includes a rapping cam, a cam sleeve fitted on the surface of the rapping cam, a fixing baffle that matches the cam sleeve to prevent the cam sleeve from loosening, and a rapping rod hinged to the lower end of the cam sleeve.

4. The electrode plate rapping device for an electrostatic precipitator according to claim 3, characterized in that, The vibrating cam has a keyway-equipped shaft mounting hole near its edge.

5. The plate rapping device for an electrostatic precipitator according to claim 3, characterized in that, The cam sleeve has an integrally formed anti-slip strip on one side, and a fixing lug with a screw hole is welded on the other side. The lower end of the cam sleeve is also welded with a hinge lug.

6. The electrostatic precipitator plate rapping device according to claim 3, characterized in that, The upper end of the vibratory rod is integrally formed with a hinge joint.

7. The electrostatic precipitator plate rapping device according to claim 1, characterized in that, A support base is welded onto the side of the housing facing the drive mechanism.

8. The electrode plate rapping device for an electrostatic precipitator according to claim 1, characterized in that, The auxiliary plate includes an auxiliary plate body, limiting holes opened on the auxiliary plate body in the same number as the number of rapping components, a support plate welded to the center of the upper part of the auxiliary plate body, and a bearing seat welded to the upper end of the support plate.

9. The electrode plate rapping device for an electrostatic precipitator according to claim 1, characterized in that, The drive mechanism includes a reducer and a drive motor fixedly connected to the reducer.

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