Electrostatic precipitator with automatic cleaning function for thermal power plant

Abstract

The utility model discloses a static precipitator with automatic cleaning function for thermal power plant relates to static precipitator technical field, including dust remover and fixed frame, the bottom welding of dust remover has fixed frame, the inside symmetry of dust remover is bolted and is connected with two groups of mounting bracket, and the fixed frame's middle part welding has the mounting panel. This static precipitator with automatic cleaning function for thermal power plant motor drive screw rod rotates, drives and moves up and down with the cross -piece of screw thread sliding connection, both ends fixed with the sliding sleeve, simultaneously cross -piece both sides electric push rod telescopic push brush holder, let with the bristle of polar plate inboard fit can move with cross -piece and electric push rod telescopic, carries out the comprehensive and efficient cleaning to polar plate inboard, effectively removes the dust and other impurities accumulated on the polar plate, ensures the normal work of polar plate, improves the dust removal efficiency and service life of dust remover.

Description

Technical Field

[0001] This utility model relates to the field of electrostatic precipitator technology, specifically to an electrostatic precipitator for thermal power plants with automatic cleaning function. Background Technology

[0002] Thermal power plants generate a large amount of dust-laden exhaust gas during power generation. To reduce environmental pollution, dust removal treatment is necessary. Electrostatic precipitators are one of the commonly used dust removal devices in thermal power plants. Their working principle is to use a high-voltage electric field to charge the dust particles in the exhaust gas, and then, under the action of the electric field force, adsorb the dust particles onto the collecting plates, thereby achieving the purpose of dust removal. However, in actual use, a large amount of dust will gradually accumulate on the collecting plates, requiring regular cleaning; otherwise, the dust removal efficiency will be affected.

[0003] However, existing electrostatic precipitators for thermal power plants with automatic cleaning functions still have certain problems: The existing cleaning methods for electrostatic precipitators mainly include manual cleaning and mechanical rapping cleaning. Mechanical rapping cleaning involves installing a rapping device on the dust collection plate and using the rapping force to remove the dust from the dust collection plate. However, this method is prone to damaging the dust collection plate, and it also generates noise pollution. Furthermore, it is not effective for cleaning some sticky dust. Therefore, we propose an electrostatic precipitator for thermal power plants with automatic cleaning function to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide an electrostatic precipitator for thermal power plants with an automatic cleaning function, in order to solve the problem that the main cleaning methods for electrostatic precipitators mentioned in the background art are manual cleaning and mechanical vibration cleaning. Mechanical vibration cleaning involves installing a vibration device on the dust collection plate and using vibration force to remove dust from the dust collection plate. However, this method is prone to damage to the dust collection plate, and it also generates noise pollution. Furthermore, it is not effective in cleaning some sticky dust.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electrostatic precipitator for thermal power plants with automatic cleaning function, comprising a precipitator body and a fixing frame. The fixing frame is welded to the bottom of the precipitator body. Two sets of mounting frames are symmetrically bolted together inside the precipitator body. An electrode plate is disposed between the two sets of mounting frames. An mounting plate is welded to the middle of the fixing frame. Two sets of fixing plates are symmetrically installed on the inner side of the precipitator body. A motor is fixedly installed on one side of the mounting plate. A lead screw is movably connected to the output end of the motor. A cross is disposed in the middle of the precipitator body. Sliding sleeves are fixed at both ends of the cross, and the sliding sleeves are threadedly slidably connected to the lead screw. Electric push rods are fixed on both sides of the cross. A brush holder is fixed to the output end of the electric push rod. Brush bristles are disposed on the outer side of the brush holder, and the outer surface of the brush bristles is in close contact with the inner side of the electrode plate.

[0006] Using the above technical solution, the motor drives the lead screw to rotate, causing the cross-shaped part connected to the lead screw to move up and down. At the same time, the electric push rod pushes the brush holder, allowing the brush bristles to adhere to the electrode plate, so that the brush bristles can automatically clean the electrode plate, remove accumulated dust, and maintain the normal working performance of the electrostatic precipitator.

[0007] Preferably, the electrode plate is integrally provided with sliding rods on both sides, and the sliding rods are L-shaped. The inner side of the mounting bracket is provided with a sliding groove that matches the sliding rods.

[0008] The above technical solution uses an integrated L-shaped sliding rod on both sides of the electrode plate to match the sliding groove on the inner side of the mounting frame, allowing the electrode plate to slide along the sliding groove via the sliding rod. This facilitates the installation, disassembly, and positioning of the electrode plate, enabling quick operation when maintenance or replacement of the electrode plate is required, and ensuring the normal operation of the electrostatic precipitator.

[0009] Preferably, the top of the mounting bracket is rotatably connected to a sleeve via a hinge, the other end of the sleeve is fixed with a buckle, the outer side of the mounting bracket is fixed with a card seat, and the middle of the card seat is provided with a card groove that engages with the buckle.

[0010] By adopting the above technical solution, the clamp is rotated by the hinge, so that the buckle at the other end of the clamp can be engaged or disengaged from the slot on the outer side of the mounting bracket. By using the engagement and connection between the buckle and the slot, the electrode plate can be quickly and securely fixed on the mounting bracket, and the clamp can be easily opened to remove the electrode plate, which facilitates the installation and maintenance of the electrode plate.

[0011] Preferably, the motor and lead screw are arranged symmetrically in two sets along the dust collector body, and the lead screw passes through the fixed plate at the bottom of the dust collector body and is connected to the fixed plate at the top of the dust collector body by a bearing.

[0012] Using the above technical solution, the two sets of motors operate synchronously to drive the corresponding lead screws to rotate. The lead screws rotate stably because they are connected to the bearings of the upper and lower fixed plates of the dust collector body, realizing the linear movement of the relevant components along the lead screws. This allows the cleaning components to clean the plates comprehensively and stably, improving the automatic cleaning effect and the operational stability of the dust collector.

[0013] Preferably, the dust collector body has an air inlet on one side and an air outlet on the other side, an inspection cover plate is bolted to the upper end face of the dust collector body, an ash hopper is provided at the bottom of the dust collector body, and an ash discharge valve is installed in the middle of the ash hopper.

[0014] Using the above technical solution, dust-laden gas enters the dust collector body through the inlet, and after electrostatic dust removal inside, clean gas is discharged from the outlet. The ash hopper collects the settled dust, and the ash discharge valve controls the dust discharge. The inlet and outlet realize the gas circulation and purification process. The inspection cover facilitates internal inspection and maintenance, and the ash hopper and ash discharge valve facilitate dust collection and discharge, ensuring the normal operation of the equipment.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. The motor drives the lead screw to rotate, which in turn moves the cross, which is slidably connected to the lead screw and has sliding sleeves fixed at both ends, up and down. At the same time, the electric push rods on both sides of the cross extend and retract to push the brush holder, so that the bristles that are in contact with the inner side of the electrode plate can move with the cross and extend and retract with the electric push rods, to thoroughly and efficiently clean the inner side of the electrode plate, effectively remove dust and other impurities accumulated on the electrode plate, ensure the normal operation of the electrode plate, and improve the dust removal efficiency and service life of the dust collector. 2. The L-shaped sliding rods integrated on both sides of the electrode plate and the matching sliding grooves on the inner side of the mounting frame allow the electrode plate to slide smoothly along the sliding grooves, greatly facilitating the installation and disassembly of the electrode plate. The clamp at the top of the mounting frame, which is connected by a hinge, and the buckle at its other end, which engages with the slot on the outer seat of the mounting frame, can firmly fix the electrode plate on the mounting frame, ensuring that the electrode plate is stable and reliable during operation, reducing shaking and displacement, and ensuring the normal operation of the dust collector and the high-efficiency dust removal effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of this utility model from the front view; Figure 2 This is a schematic diagram of the internal structure of the main body of this utility model; Figure 3 This is a schematic diagram of the disassembly and assembly structure of the electrode plate and mounting bracket of this utility model; Figure 4 This is a schematic diagram of the connection structure between the jacket and the mounting bracket of this utility model; Figure 5 This is a schematic diagram of the brush holder adjustment structure of this utility model; Figure 6 This is a schematic diagram of the connection structure between the sliding sleeve and the lead screw of this utility model.

[0017] In the diagram: 1. Dust collector body; 2. Fixing frame; 3. Air inlet; 4. Air outlet; 5. Inspection cover; 6. Dust hopper; 7. Mounting frame; 8. Electrode plate; 9. Slide rod; 10. Slide groove; 11. Jacket; 12. Buckle; 13. Card seat; 14. Card slot; 15. Mounting plate; 16. Fixing plate; 17. Motor; 18. Lead screw; 19. Cross; 20. Slide sleeve; 21. Electric push rod; 22. Brush holder; 23. Brush bristles. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Please see Figures 1-5 This utility model provides a technical solution: an electrostatic precipitator for thermal power plants with automatic cleaning function, comprising a precipitator body 1 and a fixing frame 2. The fixing frame 2 is welded to the bottom of the precipitator body 1. An air inlet 3 is provided on one side of the precipitator body 1, and an air outlet 4 is provided on the other side. A maintenance cover plate 5 is bolted to the upper end face of the precipitator body 1. A dust hopper 6 is provided at the bottom of the precipitator body 1, and a dust discharge valve is installed in the middle of the dust hopper 6. The interior of the precipitator body 1 is symmetrical and bolted with two sets of mounting frames 7, and an electrode plate 8 is provided between the two sets of mounting frames 7. A sliding rod 9 is integrally provided on both sides of the electrode plate 8, and the sliding rod 9 has an L-shaped structure. A sliding groove 10 adapted to the sliding rod 9 is opened on the inner side of the mounting frame 7. The top of the mounting bracket 7 is connected to a sleeve 11 via a hinge. The other end of the sleeve 11 is fixed with a buckle 12. The outer side of the mounting bracket 7 is fixed with a card seat 13. The middle part of the card seat 13 has a card groove 14 that engages with the buckle 12.

[0020] The dust collector body 1 is securely supported by a fixing frame 2. An inlet 3 and an outlet 4 are located on both sides to allow dust-laden gas to enter and exit. A maintenance cover 5 is bolted to the upper surface of the dust collector body 1 for easy inspection and maintenance of internal components. A bottom ash hopper 6 collects dust adsorbed by the electrode plates 8, and a central ash discharge valve allows for periodic dust discharge. Two sets of symmetrical mounting brackets 7 are bolted inside the dust collector body 1, providing mounting positions for the electrode plates 8. Integrated L-shaped sliding rods 9 on both sides of the electrode plates 8 connect to the mounting brackets 7. The side slide groove 10 is adapted to allow the electrode plate 8 to slide smoothly along the slide groove 10, which is convenient for installation and disassembly. The top of the mounting frame 7 is connected to the clip 11 by a hinge, and the other end of the clip 12 can be engaged with the slot 14 in the middle of the outer card seat 13 of the mounting frame 7, thereby firmly fixing the electrode plate 8 on the mounting frame 7 and ensuring the stable operation of the electrode plate 8. When it is necessary to clean or replace the electrode plate 8, the connection between the clip 12 and the slot 14 can be opened to pull out the electrode plate 8 along the slide groove 10, which is convenient, quick and easy and improves the efficiency of use.

[0021] A mounting plate 15 is welded to the middle of the mounting frame 2. Two sets of mounting plates 16 are symmetrically installed on the inner side of the dust collector body 1. A motor 17 is fixedly installed on one side of the mounting plate 15. A lead screw 18 is movably connected to the output end of the motor 17. A cross 19 is set in the middle of the dust collector body 1. Sliding sleeves 20 are fixed at both ends of the cross 19, and the sliding sleeves 20 are threadedly slidably connected to the lead screw 18. Electric push rods 21 are fixed on both sides of the cross 19. A brush holder 22 is fixed at the output end of the electric push rod 21. Brush bristles 23 are provided on the outer side of the brush holder 22, and the outer surface of the brush bristles 23 is in close contact with the inner side of the electrode plate 8. Two sets of motors 17 and lead screws 18 are symmetrically arranged along the dust collector body 1, and the lead screw 18 passes through the mounting plate 16 at the bottom of the dust collector body 1 and is connected to the mounting plate 16 at the top of the dust collector body 1 by a bearing.

[0022] Inside the dust collector body 1, the mounting plate 15 welded in the middle of the fixing frame 2 provides a foundation for the installation of subsequent components; the two sets of fixing plates 16 installed symmetrically on the inner side are used to fix and support the motor 17 and the lead screw 18 and other related structures. Motor 17 is fixedly installed on one side of mounting plate 15. After motor 17 is started, its output end drives lead screw 18 to rotate. Since two sets of lead screw 18 are symmetrically arranged along the dust collector body 1 and pass through the fixed plate 16 at the bottom of the dust collector body 1 and are connected to the bearing of the fixed plate 16 at the top, the stability of lead screw 18 rotation is ensured. The sliding sleeves 20 fixed at both ends of cross 19 are threadedly slidably connected to lead screw 18. When lead screw 18 rotates, sliding sleeves 20 will move up and down along lead screw 18, thereby driving cross 19 to move up and down. Electric push rods 21 fixed on both sides of cross 19 can extend and retract. The brush holder 22 fixed at its output end moves accordingly. The outer surface of the brush bristles 23 on the outer side of the brush holder 22 is in close contact with the inner side of the electrode plate 8. In this way, during the extension and retraction of electric push rod 21 and the up and down movement of cross 19, brush bristles 23 can thoroughly clean the inner side of electrode plate 8, remove dust and other impurities accumulated on electrode plate 8, ensure the normal operation of electrode plate 8, and improve the dust removal efficiency and service life of dust collector.

[0023] Working principle: For this type of electrostatic precipitator for thermal power plants with automatic cleaning function, the dust-laden gas enters from the air inlet 3 on one side of the precipitator body 1. When passing through the electrode plate 8 inside, the dust is adsorbed by the electrode plate 8. The purified gas is discharged from the air outlet 4 on the other side. The adsorbed dust falls into the bottom ash hopper 6 and is discharged through the ash discharge valve at regular intervals. When the electrode plate 8 accumulates a certain amount of dust and needs to be cleaned, the motor 17 on one side of the mounting plate 15 starts, driving the two sets of symmetrically arranged lead screws 18 to rotate stably between the fixed plate 16. The sliding sleeve 20, which is threadedly connected to the lead screw 18, drives the cross 19 to move up and down. At the same time, the electric push rods 21 on both sides of the cross 19 extend and retract, pushing the brush holder 22 to move, so that the bristles 23 on the outer side of the brush holder 22 are in contact with the inner side of the electrode plate 8 to thoroughly clean the electrode plate 8. If the electrode plate 8 needs to be repaired or replaced, open the inspection cover 5, and then open the connection between the buckle 12 on the top clip 11 of the mounting bracket 7 and the slot 14 on the card seat 13, and pull out the electrode plate 8 along the sliding rod 9 and the sliding groove 10.

[0024] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An electrostatic precipitator for thermal power plants with automatic cleaning function, comprising a precipitator body (1) and a fixing frame (2), characterized in that: A fixing frame (2) is welded to the bottom of the dust collector body (1). Two sets of mounting frames (7) are symmetrically bolted to the inside of the dust collector body (1). An electrode plate (8) is provided between the two sets of mounting frames (7). A mounting plate (15) is welded to the middle of the fixing frame (2). Two sets of fixing plates (16) are symmetrically installed on the inner side of the dust collector body (1). A motor (17) is fixedly installed on one side of the mounting plate (15). A wire is movably connected to the output end of the motor (17). The dust collector body (1) has a cross (19) in the middle of the rod (18). The two ends of the cross (19) are fixed with sliding sleeves (20), and the sliding sleeves (20) are threadedly connected to the lead screw (18). Electric push rods (21) are fixed on both sides of the cross (19). A brush holder (22) is fixed at the output end of the electric push rod (21). Brush bristles (23) are provided on the outer side of the brush holder (22), and the outer surface of the brush bristles (23) is in close contact with the inner side of the electrode plate (8).

2. The electrostatic precipitator for thermal power plants with automatic cleaning function according to claim 1, characterized in that: The electrode plate (8) is integrally provided with slide rods (9) on both sides, and the slide rods (9) are in an L-shaped structure. The inner side of the mounting bracket (7) is provided with a slide groove (10) that matches the slide rods (9).

3. The electrostatic precipitator for thermal power plants with automatic cleaning function according to claim 1, characterized in that: The top of the mounting bracket (7) is connected to a sleeve (11) by a hinge. The other end of the sleeve (11) is fixed with a buckle (12). The outer side of the mounting bracket (7) is fixed with a card seat (13). The middle part of the card seat (13) is provided with a card groove (14) that engages with the buckle (12).

4. The electrostatic precipitator for thermal power plants with automatic cleaning function according to claim 1, characterized in that: The motor (17) and lead screw (18) are symmetrically arranged in two sets along the dust collector body (1), and the lead screw (18) passes through the fixing plate (16) at the bottom of the dust collector body (1) and is connected to the bearing of the fixing plate (16) at the top of the dust collector body (1).

5. An electrostatic precipitator for thermal power plants with automatic cleaning function according to claim 1, characterized in that: The dust collector body (1) has an air inlet (3) on one side and an air outlet (4) on the other side. The upper end face of the dust collector body (1) is bolted with an inspection cover plate (5). The bottom of the dust collector body (1) is provided with a dust hopper (6), and a dust discharge valve is installed in the middle of the dust hopper (6).

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