Multi-layer cathode rapping device

Abstract

The utility model relates to the technical field of electric dust removers, in particular to a multilayer cathode rapping device, which comprises rapping hammer components, transmission shafts, a cathode frame and a driving system, the rapping hammer components are mounted on the transmission shafts, the transmission shafts are supported by the cathode frame, the number of the transmission shafts is more than two, and the driving system is mounted on the transmission shafts. And the driving system is connected with the transmission shaft. According to the multi-layer cathode rapping device, multi-layer operation rapping is adopted, a wider area can be covered for dust removal, the dust removal efficiency is improved, dust and impurities attached to the surface of a cathode can be effectively removed through different layers of rapping operation, the surface of the cathode is kept clean, and the operation efficiency of equipment is improved; and through the multi-layer rapping design, the surface of the cathode is uniformly cleaned, the occurrence of a back corona phenomenon can be effectively reduced, and the stability and reliability of equipment are improved.

Description

[Technical field]

[0001] The utility model relates to the technical field of electric precipitators, and more specifically, to a multi-layer cathode rapping device. [Background technology]

[0002] Electrostatic precipitator is a device that captures dust in flue gas by electrostatic purification. It is an ideal equipment for purifying industrial waste gas. Its purification work is mainly completed by the two systems of discharge electrode and precipitation electrode. When high voltage direct current is input between the two electrodes, anions and cations are generated in the electrode space and act on the surface of waste gas particles passing through the electrostatic field, so that they move to the electrode with opposite polarity under the action of the electric field force and settle on the electrode to achieve the purpose of dust collection. Both electrode systems have a vibration device. When the vibration hammer periodically hits the two-electrode system, the dust adhering to the electrode is shaken off, falls into the lower ash hopper and is discharged from the body through the ash discharge device. The purified waste gas is discharged into the atmosphere through the chimney from the outlet, thus completing the purification of the flue gas.

[0003] An existing cathode rapping device for a high-temperature electrostatic precipitator, with announcement number: CN 215843602U, comprises a reduction motor and an insulator shaft, one end of the insulator shaft is connected to the power output end of the reduction motor, and the other end is transmission-connected to the rapping shaft; the rapping shaft comprises a first shaft, a second shaft and a third shaft which are sequentially arranged in a direction away from the insulator shaft, and a gap is provided between the ends of the first shaft and the second shaft, and between the ends of the second shaft and the third shaft; the shaft bodies of the first shaft, the second shaft and the third shaft are provided with short arms which are arranged at intervals along their length directions, and the suspended ends of the short arms are connected to a rapping hammer via a pin shaft; the utility model splits the rapping shaft into a multi-section structure, and gaps are provided at adjacent ends of the multi-section structure, thereby effectively avoiding the extrusion displacement caused by the expansion of the rapping shaft due to thermal expansion and contraction, and ensuring the stability of the cathode rapping transmission mechanism during the rapping process. However, when the existing device encounters a large amount of dust, high dust viscosity and a frame height greater than 15m during vibration operation, the vibration force decays during the transmission process and the vibration points are unevenly arranged in the height direction, resulting in the cathode wire being unable to effectively clean the dust, corona closure in the electric field, small secondary current in the electric field, and reduced dust removal efficiency. [Utility Model Content]

[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a multi-layer cathode rapping device which meets the dust cleaning effect and prevents the cathode line back corona phenomenon from occurring by setting up multi-layer operation rapping.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-layer cathode rapping device, comprising a rapping hammer assembly, a transmission shaft, a cathode frame, and a drive system, wherein the rapping hammer assembly is installed on the transmission shaft, the transmission shaft is supported by the cathode frame, the number of the transmission shafts is greater than two, and the drive system is connected to the transmission shaft.

[0006] Preferably, the rapping hammer assembly drops in a downward direction.

[0007] Preferably, a rapping system is provided on the transmission shaft.

[0008] Preferably, a plurality of pole line hammer head assemblies are provided in the rapping system, and the pole line hammer head assemblies in the same row in the multi-layer rapping system rapple simultaneously.

[0009] Preferably, the diameter of the hammer head is 90 mm.

[0010] Preferably, the driving system includes a vibrating motor, an insulator shaft, and a vertical shaft. The vibrating motor is arranged at the top, and the vibrating motor drives the vertical shaft to rotate through the insulator shaft.

[0011] Preferably, the driving system is connected to the transmission shaft via a small pin wheel and a large pin wheel.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model adopts multi-layer operation and vibration, which can cover a wider area for cleaning and improve the cleaning efficiency. Through vibration operation at different levels, dust and impurities attached to the cathode surface can be effectively removed, the cathode surface can be kept clean, and the operation efficiency of the equipment can be improved;

[0014] 2. The utility model discloses a multi-layer cathode rapping device, which can evenly clean the cathode surface through a multi-layer rapping design, and can effectively reduce the occurrence of back corona phenomenon and improve the stability and reliability of the equipment.

Brief Description of the Drawings

[0015] Figure 1 This is a schematic diagram of the structure of a multi-layer cathode rapping device of the utility model;

[0016] In the figure: 1-vibrating hammer assembly, 2-transmission shaft, 3-cathode frame, 4-driving system, 41-vibrating motor, 42-ceramic rotating shaft, 43-vertical shaft, 5-vibrating system. [Specific implementation method]

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1 In the embodiment of the utility model, a multi-layer cathode rapping device includes a rapping hammer assembly 1, a transmission shaft 2, a cathode frame 3, and a driving system 4. The rapping hammer assembly 1 is installed on the transmission shaft 2, and the rapping hammer assembly 1 drops downward. The transmission shaft 2 is supported by the cathode frame 3, and the number of transmission shafts 2 on each cathode frame 3 is greater than two. A rapping system 5 is provided on the transmission shaft 2. The same-row pole line hammer head assemblies in the multi-layer rapping system 5 are rapped at the same time. The hammer head is directly preferably 90mm. The driving system 4 is connected to the transmission shaft 2. The driving system 4 includes a rapping motor 41, an insulator shaft 42, and a vertical shaft 43. The rapping motor 41 is arranged at the top, and the rapping motor 41 drives the vertical shaft 43 to rotate through the insulator shaft 42, and then drives the transmission shaft 2 through the small pin wheel and the large pin wheel.

[0019] Working principle:

[0020] The utility model discloses a multi-layer cathode rapping device. When in use, the rapping motor 41 drives the vertical shaft 43 to rotate through the insulator shaft 42, and drives the transmission shaft 2 through the small pinwheel and the large pinwheel. The movement of the transmission shaft 2 drives the rotation of the rapping hammer assembly 1. At the same time, one or two layers of rapping systems 5 are reasonably added to the cathode frame on the basis of the original rapping according to the working conditions, so as to ensure that the hammer head assemblies of the pole lines in the same column in the height direction can be rapped at the same time. By setting up multi-layer operation rapping, the pole lines in the same column in the height direction are evenly rapped, so as to meet the effective cleaning effect of the cathode lines and prevent the occurrence of the cathode line back corona phenomenon.

[0021] The above embodiments are intended to illustrate the present invention, not to limit the present invention. Any solution that is a simple transformation of the present invention falls within the protection scope of the present invention.

Claims

1. A multi-layer cathode rapping device, characterized in that: The invention comprises a rapping hammer assembly (1), a transmission shaft (2), a cathode frame (3), and a drive system (4), wherein the rapping hammer assembly (1) is mounted on the transmission shaft (2), the transmission shaft (2) is supported by the cathode frame (3), the number of the transmission shafts (2) is greater than two, and the drive system (4) is connected to the transmission shaft (2).

2. A multi-layer cathode rapping device as claimed in claim 1, characterized in that: The rapping hammer assembly (1) drops downward.

3. A multi-layer cathode rapping device as claimed in claim 1, characterized in that: The transmission shaft (2) is provided with a rapping system (5).

4. A multi-layer cathode rapping device as claimed in claim 3, characterized in that: The rapping system (5) is provided with a plurality of pole line hammer head assemblies, and the pole line hammer head assemblies in the same row in the multi-layer rapping system (5) are rapped simultaneously.

5. A multi-layer cathode rapping device as claimed in claim 1, characterized in that: The driving system (4) comprises a vibration motor (41), an insulator shaft (42), and a vertical shaft (43). The vibration motor (41) is arranged at the top, and the vibration motor (41) drives the vertical shaft (43) to rotate via the insulator shaft (42).

6. A multi-layer cathode rapping device as claimed in claim 1, characterized in that: The driving system (4) is connected to the transmission shaft (2) via a small pin wheel and a large pin wheel.

Images