A rapping-free lifting type electric dust collector ash cleaning device

Abstract

This utility model discloses a non-vibrating lifting electrostatic precipitator cleaning device, comprising several lifting units. Each lifting unit includes a cathode frame lifting transmission mechanism and an anode frame lifting transmission mechanism alternately arranged on an insulating mounting base, and a driving mechanism for driving the cathode frame lifting transmission mechanism and the anode frame lifting transmission mechanism. The cathode frame lifting transmission mechanism and the anode frame lifting transmission mechanism are fixedly connected to the corresponding cathode frame and anode frame, respectively. Compared with the prior art, it eliminates the need for a vibrating mechanism, thus eliminating the risk of the vibrating hammer falling. It is suitable for both newly installed electrostatic precipitators and the retrofitting of existing electrostatic precipitators, thereby improving the operational stability of the precipitator. Furthermore, the cathode frame and anode frame are lifted as a whole and then fall freely as a whole, stopping after reaching a certain limit, causing the dust on them to fall off due to inertia, thereby improving the cleaning effect.

Description

Technical Field

[0001] This utility model relates to the technical field of flue gas pollutant treatment and electrostatic precipitators, and in particular to the technical field of a non-vibrating lifting electrostatic precipitator cleaning device. Background Technology

[0002] Currently, the vibration methods for electrostatic precipitators mainly include mechanical and electromagnetic types.

[0003] Electrostatic precipitators (ESPs) typically operate using mechanical rapping. The advantage of this method lies in its strong vibration, effectively removing accumulated dust from the ESP's interior and maintaining its cleanliness and high efficiency. However, most mechanical rapping devices are currently installed inside the electric field, within the high-temperature flue gas environment. This design necessitates that maintenance personnel enter the ESP, significantly increasing the difficulty and risk of repairs. Furthermore, the separate installation of rapping devices for the cathode and anode increases material consumption and costs. During long-term operation, the presence of thousands of hammers means any of them can potentially detach for various reasons. A detached hammer can cause the entire electric field to fail, necessitating a shutdown of the power generation system for maintenance, resulting in substantial economic losses and reduced production efficiency.

[0004] A gravity-lifting drop bar vibration device with application (patent) number CN202420693436.2 includes a drive mechanism, a gravity bar, an insulating shaft, and a cathode frame connecting rod. By connecting the cathode frame to the lower end of the insulating shaft, the drive mechanism drives the gravity bar to move upward. The gravity bar descends under its own weight and strikes the upper end of the insulating shaft, transmitting the vibration force to the cathode frame gravity bar through the cathode frame connecting rod. This gravity-lifting drop bar vibration device also performs dust removal operation by vibrating with the gravity bar. However, the vibration force transmission effect is poor, so the dust removal effect needs to be improved. Summary of the Invention

[0005] The purpose of this utility model is to solve the problems in the prior art by proposing a non-vibrating lifting electrostatic precipitator cleaning device, which can solve at least one of the above problems.

[0006] To achieve the above objectives, this utility model proposes a non-vibrating lifting electrostatic precipitator cleaning device, comprising several lifting units. Each lifting unit includes a cathode frame lifting transmission mechanism and an anode frame lifting transmission mechanism alternately arranged on an insulating mounting base, and a driving mechanism for driving the cathode frame lifting transmission mechanism and the anode frame lifting transmission mechanism. The cathode frame lifting transmission mechanism and the anode frame lifting transmission mechanism are respectively fixedly connected to the corresponding cathode frame and anode frame. The cathode frame lifting transmission mechanism includes a lifting rod, a rack, an insulating shaft, a connecting rod, and a limiting seat. The lower end of the lifting rod is provided with an insulating shaft, and the lower end of the insulating shaft is provided with a connecting rod. The lower end of the connecting rod passes through the insulating mounting base and is fixedly connected to the corresponding cathode frame. The connecting rod is provided with a limiting seat located above the insulating mounting base. The upper end of the lifting rod is provided with a rack. The driving mechanism includes a drive shaft and several non-full circular gears provided on the drive shaft. The non-full circular gears are meshed with the corresponding racks. The anode frame lifting transmission mechanism is based on the cathode frame lifting transmission mechanism, except that the insulating shaft is replaced with a coupling.

[0007] Preferably, the insulating mounting base is provided with a sealing cover, the cathode frame lifting transmission mechanism, the anode frame lifting transmission mechanism and the drive shaft are located inside the sealing cover, the sealing cover is provided with a geared motor that drives the drive shaft to rotate, and the upper end of the sealing cover is provided with a detachable top plate.

[0008] Preferably, the inner side of the sealing cover is provided with an insulating liner.

[0009] Preferably, the connecting rod is provided with a safety pin located above the limiting seat.

[0010] Preferably, the rack is provided with a connecting sleeve that mates with the lifting rod, and the connecting sleeve is fixedly connected to the lifting rod by a bolt pair.

[0011] Preferably, the non-circular gear includes a connecting shaft seat and a sector gear detachably mounted on the connecting shaft seat.

[0012] Preferably, a fixed ring is fixed on the connecting shaft seat by a number of screws, and a rotating ring is fitted on the fixed ring. The sector gear is detachably connected to the rotating ring by a number of screws. The fixed ring is provided with an annular pressing part that presses and fixes the rotating ring. The pressing surface of the annular pressing part is provided with evenly distributed teeth. The rotating ring is provided with tooth grooves that correspond one-to-one with the teeth.

[0013] Preferably, the number of lifting units is two, and the two lifting units are arranged symmetrically.

[0014] The beneficial effects of this utility model are as follows: This utility model uses a drive shaft to drive a non-full circular gear to rotate. The teeth on the non-full circular gear mesh tightly with the rack on the connecting rod. This meshing relationship allows the lifting rod to be lifted upwards. The lifting action of the lifting rod further drives the connecting rod connected to the cathode frame or anode frame to lift upwards synchronously. When the non-full circular gear rotates to a certain angle, it will disengage from the rack. At this time, the cathode frame or anode will begin to fall freely downwards due to its own gravity. This short-distance free fall will stop quickly after reaching a certain limit because the limiting seat is blocked by the insulating mounting seat. Since the cathode frame or anode frame stops moving, the cathode frame... Dust on the cathode or anode frame continues to move forward due to inertia, creating an acceleration difference. This acceleration difference causes dust on the cathode frame, cathode wires on the cathode frame, anode frame, and anode plates on the anode frame to fall off and directly into the ash hopper below. Compared with existing technologies, this eliminates the need for a rapping mechanism, removing the risk of the rapping hammer falling off. It is suitable for both newly installed electrostatic precipitators and retrofits of existing ones, thereby improving the operational stability of the precipitator. Furthermore, the cathode and anode frames are raised as a whole and then fall freely until they reach a certain limit, at which point the dust on them falls off due to inertia, thus improving the dust removal effect.

[0015] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a non-vibrating lifting electrostatic precipitator cleaning device according to this utility model;

[0017] Figure 2 yes Figure 1 View from direction B;

[0018] Figure 3 yes Figure 1 A-direction view;

[0019] Figure 4 This is a cross-sectional view of a non-circular gear.

[0020] In the diagram: 1-Lifting unit, 2-Cathode frame, 3-Anode frame, 11-Cathode frame lifting transmission mechanism, 12-Anode frame lifting transmission mechanism, 13-Drive mechanism, 14-Insulating mounting base, 15-Sealing cover, 16-Gear motor, 17-Insulating liner, 18-Top plate, 111-Lifting rod, 112-Rack, 113-Insulating shaft, 114-Connecting rod, 115-Limit seat, 116-Safety pin, 117-Connecting sleeve, 118-Bolt pair, 121-Coupling, 131-Drive shaft, 132-Non-full circular gear, 1321-Connecting shaft seat, 1322-Sector gear, 1323-Fixed ring, 1324-Rotating ring, 1325-Screw, 1326-Gear body, 1327-Gear groove, 1328-Annular clamping part. Detailed Implementation

[0021] See Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model discloses a non-vibrating lifting electrostatic precipitator cleaning device, comprising several lifting units 1. Each lifting unit 1 includes a cathode frame lifting transmission mechanism 11 and an anode frame lifting transmission mechanism 12, which are alternately arranged on an insulating mounting base 14, and a driving mechanism 13 that drives the cathode frame lifting transmission mechanism 11 and the anode frame lifting transmission mechanism 12. The cathode frame lifting transmission mechanism 11 and the anode frame lifting transmission mechanism 12 are respectively fixedly connected to the corresponding cathode frame and anode frame. The cathode frame lifting transmission mechanism 11 includes a lifting rod 111, a rack 112, an insulating shaft 113, a connecting rod 114, and a limiting seat 115. The lifting rod 111... The lower end of the anode frame is provided with an insulating shaft 113, and the lower end of the insulating shaft 113 is provided with a connecting rod 114. The lower end of the connecting rod 114 passes through the insulating mounting base 14 and is fixedly connected to the corresponding cathode frame. The connecting rod 114 is provided with a limiting seat 115 located above the insulating mounting base 14. The upper end of the lifting rod 111 is provided with a rack 112. The driving mechanism 13 includes a drive shaft 131 and several non-full circular gears 132 provided on the drive shaft 131. The non-full circular gears 132 are meshed with the corresponding racks 112. The anode frame lifting transmission mechanism 12 is based on the cathode frame lifting transmission mechanism 11, except that the insulating shaft 113 is replaced with a coupling 121.

[0022] The insulating mounting base 14 is provided with a sealing cover 15. The cathode frame lifting transmission mechanism 11, the anode frame lifting transmission mechanism 12 and the drive shaft 131 are located inside the sealing cover 15. The sealing cover 15 is provided with a reduction motor 16 that drives the drive shaft 131 to rotate. The upper end of the sealing cover 15 is provided with a detachable top plate 18.

[0023] The inner side of the sealing cover 15 is provided with an insulating liner 17.

[0024] The connecting rod 114 is provided with a safety pin 116 located above the limiting seat 115.

[0025] The rack 112 is provided with a connecting sleeve 117 that cooperates with the lifting rod 111. The connecting sleeve 117 is fixedly connected to the lifting rod 111 by a bolt pair 118.

[0026] The non-circular gear 132 includes a connecting shaft seat 1321 and a sector gear 1322 detachably mounted on the connecting shaft seat 1321.

[0027] A fixed ring 1323 is fixed on the connecting shaft seat 1321 by a number of screws 1325. A rotating ring 1324 is fitted on the fixed ring 1323. The sector gear 1322 is detachably connected to the rotating ring 1324 by a number of screws 1325. The fixed ring 1323 is provided with an annular pressing part 1328 for pressing and fixing the rotating ring 1324. The pressing surface of the annular pressing part 1328 is provided with evenly distributed teeth 1326. The rotating ring 1324 is provided with tooth grooves 1327 that correspond one-to-one with the teeth 1326 and engage with each other.

[0028] The number of lifting units 1 is two, and the two lifting units 1 are arranged symmetrically.

[0029] The working process of this utility model:

[0030] In the operation of this utility model's vibration-free lifting electrostatic precipitator cleaning device, the reduction motor 16 drives the drive shaft 131 to rotate, which in turn drives the non-full circular gear 132 to rotate. The teeth on the non-full circular gear 132 mesh tightly with the corresponding rack 112. This meshing relationship allows the lifting rod 111 to be lifted upwards. The lifting rod 111 drives the corresponding connecting rod 114 to move upwards via the insulating shaft 113 or coupling 121. The connecting rod 114 drives the cathode frame 2 or anode frame 3 connected to it to move upwards synchronously. When the non-full circular gear 132 rotates to a certain angle, the non-full circular gear 132... 32 will detach from rack 112. At this time, the cathode frame or anode will begin to fall freely downwards due to its own gravity. This short-distance free fall will stop quickly after reaching a certain limit because the limit seat 115 is blocked by the insulating mounting seat 14. Since the cathode frame or anode frame stops moving, the dust on the cathode frame or anode frame will continue to move forward due to inertia, thus generating an acceleration difference. This acceleration difference causes the dust on the cathode frame, the cathode wire on the cathode frame, the anode frame, and the anode plate on the anode frame to fall off and fall directly into the ash hopper below.

[0031] By selecting the number of teeth of the non-full circular gear 132 and the rack 112, the lifting height of the cathode frame or anode frame is controlled, the free fall height of the cathode frame or anode frame is changed, and the instantaneous acceleration of the falling ash particles is changed to meet the ash falling requirements.

[0032] This application enables the elimination of mechanical vibration in the ash removal process of electrostatic precipitators, resulting in stable operation, convenient adjustment of ash removal acceleration, and good adaptability to various working conditions.

[0033] There are two lifting units 1, which are symmetrically arranged. The drive mechanism 13 effectively counteracts the lateral forces on both sides of the frame by rotating synchronously and in opposite directions, thereby enhancing the stability of the lifting of the cathode frame and the anode frame.

[0034] The toothed portions of two adjacent non-full circular gears are arranged at a certain angle to avoid excessive load on the drive shaft caused by the simultaneous rise and fall of the cathode frame and the anode frame, and also to avoid large-scale secondary dust generation by the electrostatic precipitator.

[0035] A fixed ring 1323 is fixed to the connecting shaft seat 1321 by a number of screws 1325. A rotating ring 1324 is fitted onto the fixed ring 1323. The sector gear 1322 is detachably connected to the rotating ring 1324 by a number of screws 1325. The fixed ring 1323 is provided with an annular pressing part 1328 for pressing and fixing the rotating ring 1324. The pressing surface of the annular pressing part 1328 is provided with evenly distributed teeth 1326. The rotating ring 1324... The gear 1322 has tooth grooves 1327 that correspond to and engage with the toothed parts 1326. When adjusting the angle of the sector gear 1322, loosen the screws 1325 that fix the ring 1323 until the toothed parts 1326 can disengage from the tooth grooves 1327. Then rotate the sector gear 1322 for adjustment. After the adjustment is completed, tighten the loosened screws 1325. This allows the sector gear 1322 to be easily adjusted to the required angle, and the fixing reliability is good. It also facilitates the replacement of the sector gear 1322 and reduces replacement costs.

[0036] Safety pin 116 is used to prevent the fall limit device from failing during long-term operation and to ensure safe use.

[0037] The insulating liner 17 prevents the connecting rod connected to the cathode frame from short-circuiting due to breakdown of the sealing cover 15.

[0038] The upper end of the sealing cover 15 is provided with a detachable top plate 18, which can realize quick disassembly and sealing.

[0039] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A rapping-free, elevated electric dust precipitator ash cleaning device, characterized by: The device includes several lifting units (1), each lifting unit (1) comprising a cathode frame lifting transmission mechanism (11) and an anode frame lifting transmission mechanism (12) alternately arranged on an insulating mounting base (14), and a driving mechanism (13) for driving the cathode frame lifting transmission mechanism (11) and the anode frame lifting transmission mechanism (12). The cathode frame lifting transmission mechanism (11) and the anode frame lifting transmission mechanism (12) are respectively fixedly connected to the corresponding cathode frame (2) and anode frame (3). The cathode frame lifting transmission mechanism (11) includes a lifting rod (111), a rack (112), an insulating shaft (113), a connecting rod (114), and a limiting seat (115). The lower end of the lifting rod (111) is provided with an insulating shaft (113). The lower end of the insulating shaft (113) is provided with a connecting rod (114). The lower end of the connecting rod (114) passes through the insulating mounting seat (14) and is fixedly connected to the corresponding cathode frame (2). The connecting rod (114) is provided with a limiting seat (115) located above the insulating mounting seat (14). The upper end of the lifting rod (111) is provided with a rack (112). The driving mechanism (13) includes a drive shaft (131) and several non-full circular gears (132) provided on the drive shaft (131). The non-full circular gears (132) are meshed with the corresponding racks (112). The anode frame lifting transmission mechanism (12) is based on the cathode frame lifting transmission mechanism (11) by replacing the insulating shaft (113) with a coupling (121).

2. A rapping-free electro-precipitator ash cleaning device as claimed in claim 1, characterized in that: The insulating mounting base (14) is provided with a sealing cover (15). The cathode frame lifting transmission mechanism (11), the anode frame lifting transmission mechanism (12) and the drive shaft (131) are located inside the sealing cover (15). The sealing cover (15) is provided with a reduction motor (16) that drives the drive shaft (131) to rotate. The upper end of the sealing cover (15) is provided with a detachable top plate (18).

3. A rapping-free electro-precipitator ash cleaning device as claimed in claim 1, characterized in that: The inner side of the sealing cover (15) is provided with an insulating liner (17).

4. A rapping-free electro-precipitator ash removal device as claimed in claim 1, characterized in that: The connecting rod (114) is provided with a safety pin (116) located above the limiting seat (115).

5. The dust removal device for a non-vibrating lifting electrostatic precipitator as described in claim 1, characterized in that: The rack (112) is provided with a connecting sleeve (117) that cooperates with the lifting rod (111). The connecting sleeve (117) is fixedly connected to the lifting rod (111) by a bolt pair (118).

6. The dust removal device for a non-vibrating lifting electrostatic precipitator as described in claim 1, characterized in that: The non-circular gear (132) includes a connecting shaft seat (1321) and a sector gear (1322) detachably mounted on the connecting shaft seat (1321).

7. The dust removal device for a non-vibrating lifting electrostatic precipitator as described in claim 6, characterized in that: A fixed ring (1323) is fixed on the connecting shaft seat (1321) by a number of screws (1325). A rotating ring (1324) is fitted on the fixed ring (1323). The sector gear (1322) is detachably connected to the rotating ring (1324) by a number of screws (1325). The fixed ring (1323) is provided with an annular pressing part (1328) for pressing and fixing the rotating ring (1324). The pressing surface of the annular pressing part (1328) is provided with evenly distributed teeth (1326). The rotating ring (1324) is provided with tooth grooves (1327) that correspond one-to-one with the teeth (1326).

8. A non-vibrating lifting electrostatic precipitator cleaning device as described in any one of claims 1 to 7, characterized in that: The number of lifting units (1) is two, and the two lifting units (1) are arranged symmetrically.

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