Automatic cleaning device for accumulated dust of anode plate during furnace shutdown

Abstract

The utility model discloses an automatic cleaning device for anode plate dust deposit during furnace shutdown, which comprises an anode plate group, directional pulleys, a rope transmission component, a guide pulley, blowing pipes, an air source, a driving mechanism and a control system, the directional pulleys are fixedly arranged above the left side and the right side of the anode plate group, the blowing pipes are arranged on the front side and the rear side of the anode plate group, and the rope transmission component is arranged on the rope transmission component. The left end and the right end of the blowing pipe are connected through a connecting rod, a guide pulley is rotationally mounted on the connecting rod, the guide pulley is mounted at the left end and the right end of the anode plate group in a sliding manner, the blowing pipe is connected with an air source, and a plurality of nozzles are arranged on one surface, facing the anode plate group, of the blowing pipe. According to the device, the steel wire rope is driven by the driving mechanism to move, the blowing pipe is limited on the anode plate by the guide pulley, the steel wire rope drives the blowing pipe to move up and down, and the blowing pipe blows compressed air towards the anode plate, so that dust on the anode plate is cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of electrostatic precipitators, in particular to the technical field of an automatic cleaning device for ash accumulation on anode plates. Background Art

[0002] Electrostatic precipitation is the mainstream technology for dust removal in the fields of coal-fired power plants and sintering machines in steel mills. A scientific, strict maintenance system and a practical maintenance procedure are the guarantees for the long-term efficient, safe, and reliable operation of electrostatic precipitators. Therefore, when the electrostatic precipitator is shut down for maintenance, it is advisable to remove the ash accumulation on the anode plates to increase the secondary current and secondary voltage after the electrostatic precipitator is put into operation and ensure the dust removal efficiency of the electrostatic precipitator during operation. Conventional ash cleaning methods include mechanical ash cleaning, manual ash cleaning with compressed air, and water flushing ash. When using the water flushing ash method, on the one hand, it is easy to cause corrosion of the anode plates, affecting the dust collection effect of the electrostatic precipitator. On the other hand, it is necessary to disconnect the pneumatic ash conveying device at the lower part, which has a large workload and generates a large amount of waste water. Generally, power plants do not recommend using it. Mechanical ash cleaning can remove a part of the ash accumulation for dust with less viscosity. However, for sticky dust, especially in sintering machine electrostatic precipitators and electrostatic precipitators co-firing sludge, the dust has a large viscosity and cannot be effectively removed, greatly reducing the effect of the electrostatic precipitator after operation. Manual ash cleaning with compressed air requires manual entry into the electrostatic precipitator. Since the dust emission is extremely large during ash cleaning and the visibility inside the electrostatic precipitator is extremely poor, it is easy to cause safety accidents and cannot effectively clean the top of the electrode plates.

[0003] In the prior art, a novel top-blowing ash cleaning system for anode plates of an electrostatic precipitator (CN215878342U) and a method for cleaning ash from anode plates of a dry electrostatic precipitator and an auxiliary ash cleaning device (CN109806979A) both fix the blowing pipe on the top of the anode plate and can only achieve local ash cleaning at the top of the anode plate and cannot achieve ash cleaning of the entire anode plate. An electrostatic precipitator ash blowing device (CN219765642U) uses a moving box and a worm and worm gear, with a large equipment cost, cannot be set for all anode plates, and has a low ash cleaning efficiency. An anode plate surface residue cleaning and collecting device (CN218610566U) uses an electric brush roller for ash cleaning, and has the disadvantages of easy wear and short service life of the electric brush roller. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problems in the prior art and propose an automatic cleaning device for ash accumulation on anode plates during furnace shutdown, which can solve the above problems.

[0005] To achieve the above object, the utility model provides an automatic cleaning device for ash accumulation on anode plates during furnace shutdown, which includes an anode plate group, a directional pulley, a rope drive assembly, a guiding pulley, a blowing pipe, a gas source, a driving mechanism and a control system. The directional pulleys are fixedly installed above the left and right sides of the anode plate group. Blowing pipes are arranged on the front and rear sides of the anode plate group. The left and right ends of the blowing pipe are connected by a connecting rod, and guiding pulleys are rotatably installed on the connecting rod. The guiding pulleys are slidably installed at the left and right ends of the anode plate group. The blowing pipe is connected to a gas source. A plurality of nozzles are arranged on the side of the blowing pipe facing the anode plate group. The rope drive assembly includes a steel wire rope. One end of the steel wire rope is connected to the driving mechanism, and the other end bypasses the guiding pulley and is connected to the blowing pipe. The gas source is connected to the control system.

[0006] Preferably, the driving mechanism includes a driving motor and a driving wheel. The output end of the driving motor is fixed with the driving wheel. One end of the steel wire rope is fixed on the driving wheel, and the other end is fixed on the connecting rod. The driving motor is connected to the control system.

[0007] Preferably, the anode plate group is provided with several rows. An air inlet pipe is arranged on the side of the anode plate group. The air inlet end of the blowing pipe is communicated with the air inlet pipe. The air inlet pipe is connected with an air inlet hose, and the air inlet hose is connected with a gas source.

[0008] Preferably, the driving mechanism is arranged outside the electrostatic precipitator, and the driving mechanism winds the steel wire rope manually or electrically.

[0009] Preferably, the anode plate group includes several anode plates, and each anode plate corresponds to several nozzles.

[0010] Preferably, U-shaped structures are arranged on both sides of the anode plate. Two guiding pulleys are installed on the connecting rod, and the two guiding pulleys are respectively arranged on the front and rear sides of the U-shaped structure.

[0011] The beneficial effects of the utility model: The device drives the steel wire rope to move through the driving mechanism. The guiding pulley limits the blowing pipe on the anode plate. The steel wire rope drives the blowing pipe to move up and down. The blowing pipe blows compressed air towards the anode plate, thereby cleaning the ash on the anode plate. Compared with the traditional ash cleaning method, personnel do not need to enter the dust collector, which greatly protects the personal safety of personnel. The ash cleaning of this device is more thorough, avoiding the accumulation of ash on the electrode plate, and greatly improving the operation effect of the dust collector. This device avoids the corrosion consequence of the anode plate caused by water flushing.

[0012] The features and advantages of the utility model will be described in detail through embodiments in conjunction with the drawings. Description of the Drawings

[0013] Figure 1It is a schematic structural diagram of the present utility model;

[0014] Figure 2 It is a schematic installation diagram of the guiding pulley of the present utility model;

[0015] Figure 3 It is a schematic installation diagram of the directional pulley of the present utility model.

[0016] In the figure: 1. Anode plate group; 2. Directional pulley; 3. Rope drive assembly; 4. Guiding pulley; 5. Blowing pipe; 6. Air inlet pipe; 7. Air inlet hose; 8. Nozzle. Specific implementation manner

[0017] Refer to Figure 1 、 2 、3, an automatic cleaning device for ash accumulation on anode plates during furnace shutdown, comprising an anode plate group 1, a directional pulley 2, a rope drive assembly 3, a guiding pulley 4, a blowing pipe 5, a gas source, a driving mechanism and a control system. The directional pulley 2 is fixedly installed above the left and right sides of the anode plate group 1. The blowing pipe 5 is arranged on the front and back sides of the anode plate group 1. The left and right ends of the blowing pipe 5 are connected by a connecting rod. The guiding pulley 4 is rotatably installed on the connecting rod. The guiding pulley 4 is slidably installed at the left and right ends of the anode plate group 1. The blowing pipe 5 is connected to a gas source. A plurality of nozzles 8 are arranged on the surface of the blowing pipe 5 facing the anode plate group 1. The rope drive assembly 3 includes a steel wire rope. One end of the steel wire rope is connected to the driving mechanism, and the other end bypasses the guiding pulley 4 and is connected to the blowing pipe 5. The gas source is connected to the control system. The driving mechanism includes a driving motor and a driving wheel. The output end of the driving motor is fixed with the driving wheel. One end of the steel wire rope is fixed on the driving wheel, and the other end is fixed on the connecting rod. The driving motor is connected to the control system. The anode plate group 1 has a plurality of rows, and the driving mechanisms of each row of the anode plate group 1 are controlled separately. An air inlet pipe 6 is arranged on the side of the anode plate group 1. The air inlet end of the blowing pipe 5 is communicated with the air inlet pipe 6. The air inlet pipe 6 is connected with an air inlet hose 7. The air inlet hose 7 is connected with a gas source. The driving mechanism is arranged outside the electrostatic precipitator. The driving mechanism winds the steel wire rope in an electric manner. The anode plate group 1 includes a plurality of anode plates. Each anode plate corresponds to a plurality of nozzles 8. U-shaped structures are arranged on both sides of the anode plate. Two guiding pulleys 4 are installed on the connecting rod, and the two guiding pulleys 4 are respectively arranged on the front and back sides of the U-shaped structure.

[0018] The driving wheel can also be set into a structure that can be rotated manually and is manually operated by staff.

[0019] The working process of the present utility model:

[0020] After the dust collector stops operating, install the post-blowing pipe, guiding pulley and wire rope at the bottom of the anode plate. Connect the compressed air with a hose and connect the wire rope to the outside of the dust collector housing. Manual or mechanical transmission devices can be used to move the blowing pipe up and down to clean the electrode plates. The blowing pipe can move freely up and down along the anode plate through the guiding pulley, directional pulley, wire rope and transmission mechanism. This device can clean the dust row by row or clean several rows of anode plates simultaneously.

[0021] The above embodiments are illustrative of the present invention and not restrictive thereof. Any solution obtained by simply transforming the present invention falls within the protection scope of the present invention.

Claims

1. An automatic cleaning device for dust accumulation on anode plates during shutdown, characterized in that: The invention comprises an anode plate group (1), a directional pulley (2), a rope transmission component (3), a guide pulley (4), a blow pipe (5), an air source, a driving mechanism and a control system. The directional pulley (2) is fixedly installed above the left and right sides of the anode plate group (1). The blow pipe (5) is arranged on the front and rear sides of the anode plate group (1). The left and right ends of the blow pipe (5) are connected by a connecting rod. The guide pulley (4) is rotatably installed on the connecting rod. The guide pulley (4) is slidably installed on the left and right ends of the anode plate group (1). The blow pipe (5) is connected to the air source. A side of the blow pipe (5) facing the anode plate group (1) is provided with a plurality of nozzles (8). The rope transmission component (3) comprises a steel wire rope. One end of the steel wire rope is connected to the driving mechanism, and the other end passes around the guide pulley (4) and is connected to the blow pipe (5). The air source is connected to the control system.

2. The automatic cleaning device for anode plate dust accumulation during shutdown as claimed in claim 1, characterized in that: The driving mechanism comprises a driving motor and a driving wheel. The output end of the driving motor is fixed with the driving wheel. One end of the steel wire rope is fixed on the driving wheel and the other end is fixed on the connecting rod. The driving motor is connected to a control system.

3. The automatic cleaning device for anode plate dust accumulation during shutdown as claimed in claim 1, characterized in that: The anode plate group (1) is provided with a plurality of rows, and the driving mechanism of each row of the anode plate group (1) is controlled separately. An air intake pipe (6) is provided on the side of the anode plate group (1), and the air intake end of the blowing pipe (5) is connected to the air intake pipe (6). The air intake pipe (6) is connected to an air intake hose (7), and the air intake hose (7) is connected to an air source.

4. The automatic cleaning device for anode plate dust accumulation during shutdown as claimed in claim 1, characterized in that: The driving mechanism is arranged outside the electrostatic precipitator, and the driving mechanism winds the steel wire rope manually or electrically.

5. The automatic cleaning device for dust accumulation on anode plates during shutdown as claimed in claim 1, characterized in that: The anode plate group (1) comprises a plurality of anode plates, each of which corresponds to a plurality of nozzles (8).

6. The automatic cleaning device for dust accumulation on anode plates during shutdown as claimed in claim 5, characterized in that: A U-shaped structure is provided on both sides of the anode plate, and two guide pulleys (4) are installed on the connecting rod. The two guide pulleys (4) are respectively arranged on the front and rear sides of the U-shaped structure.

Images