Electrostatic ash and dust removal device
By introducing a combination of brush scraping and negative pressure suction into the electrostatic precipitator, the problem of dust suspension is solved, achieving a more efficient dust cleaning and removal effect.
Patent Information
- Application Number
- CN202520140671.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-01-21
AI Technical Summary
When cleaning the dust on the surface of the collecting electrodes in existing electrostatic precipitators, some dust remains suspended inside the dust collection box, affecting the dust removal effect. Furthermore, non-contact cleaning methods cannot completely remove the dust.
The cleaning components include brushes to scrape off dust, combined with negative pressure components and sealing components. A servo motor drives the cleaning components to move, and a negative pressure fan sucks the dust into the dust hopper to ensure complete dust removal.
It achieves thorough dust removal, improves dust removal efficiency, prevents dust from becoming suspended, and enhances the dust removal effect.
Smart Images

Figure CN223788685U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electrostatic dust removal technology, and in particular to an electrostatic dust removal device. Background Technology
[0002] The working principle of an electrostatic precipitator is to use a high-voltage electric field to ionize the flue gas, causing the dust particles in the airflow to become charged and separate from the airflow under the influence of the electric field. The negative electrode is made of metal wires with different cross-sectional shapes and is called the discharge electrode. The positive electrode is made of metal plates with different geometric shapes and is called the dust collection electrode.
[0003] Currently available electrostatic precipitators typically clean dust from the collecting electrode surface using either wet cleaning methods or by directly blowing through a blower or using a vibrator. However, regardless of whether the dust falls into the ash hopper, a small portion remains suspended inside the electrostatic precipitator, affecting subsequent dust removal efficiency. Furthermore, both blowing and vibrating are non-contact cleaning methods, meaning neither can guarantee complete removal of dust from the electrode surface. Therefore, to address these shortcomings, this invention proposes an electrostatic dust removal device. Utility Model Content
[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose an electrostatic dust removal device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: an electrostatic dust removal device, comprising a dust collection box, a dust hopper fixedly connected to the bottom of the dust collection box, multiple dust collection electrode plates fixed at equal intervals on the inner top wall of the dust collection box, multiple discharge electrodes fixed on the inner top wall of the dust collection box between two adjacent dust collection electrode plates, a guide rod fixed on one side inside the dust collection box, and a cleaning component slidably connected to the surface of the guide rod, a servo motor for driving the cleaning component to move fixedly installed on the upper surface of the dust collection box, a negative pressure component provided on the side wall of the dust hopper, several air inlets opened on the top of the dust collection box, and a sealing component provided above the air inlets, and smoke inlet pipes and smoke outlet pipes fixed on both sides of the side wall of the dust collection box respectively.
[0006] Furthermore, the cleaning assembly includes a horizontal plate slidably connected to the guide rod. A plurality of grooves are provided on one side of the horizontal plate, and bristles are fixed to the inner sidewalls of the grooves. A plurality of dust collection electrode plates are respectively located inside the plurality of grooves, and the bristles are in contact with the surface of the dust collection electrode plates.
[0007] Furthermore, the horizontal plate has multiple clearance grooves on the side near the discharge electrode, and the discharge electrode is located inside the clearance grooves.
[0008] Furthermore, a lead screw is fixedly connected to the bottom output end of the servo motor, and the lead screw passes through the horizontal plate and is threadedly connected to the horizontal plate.
[0009] Furthermore, a second mesh is fixed to the side wall of the dust collector, near the exhaust pipe.
[0010] Furthermore, the negative pressure component includes an air outlet opened on the side wall of the ash hopper, a first partition net is fixed inside the air outlet, and a negative pressure fan is fixedly connected to the lower surface of the ash hopper near the air outlet.
[0011] Furthermore, the sealing assembly includes a cover plate located on the upper surface of the dust collector and two support plates fixed to the upper surface of the dust collector. The top of each of the two support plates is fixedly connected to an electric telescopic rod, and the bottom telescopic end of the electric telescopic rod is fixedly connected to the upper surface of the cover plate. A third partition is fixed inside the air inlet.
[0012] The beneficial effects of this utility model are:
[0013] 1. In use, this utility model is an electrostatic dust removal device, which includes a dust collection box, a dust hopper, a dust collection electrode plate, a discharge electrode, a guide rod, a cleaning component, and a servo motor. After the flue gas enters the dust collection box from the inlet pipe on one side, the dust in the flue gas will be adsorbed onto the dust collection electrode plate. The flue gas after dust removal is discharged from the exhaust pipe. When it is necessary to clean the dust on the dust collection electrode plate, the servo motor drives the cleaning component to move up and down along the surface of the dust collection electrode plate, thereby scraping off the dust on the motor plate, making the dust removal faster and cleaner.
[0014] 2. In use, this utility model is an electrostatic dust removal device equipped with a negative pressure component and a sealing component. When cleaning the dust on the surface of the dust collection electrode plate, the cover plate of the sealing component is separated from the air inlet at the top of the dust collection box, and the negative pressure fan of the negative pressure component is activated, thereby drawing the dust scraped off the surface of the dust collection electrode plate into the dust hopper, preventing the dust from being suspended inside the dust collection box, thereby improving the dust collection efficiency. Attached Figure Description
[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 : Overall main sectional view of this utility model;
[0017] Figure 2 : Overall side sectional view of this utility model;
[0018] Figure 3 : A perspective view of the cleaning component of this utility model;
[0019] Figure 4 The present utility model Figure 1 Enlarged view of point A in the middle.
[0020] The attached figures are labeled as follows:
[0021] 1. Dust collection box; 101. Air inlet; 2. Dust hopper; 3. Dust collection electrode plate; 4. Discharge electrode; 5. Guide rod; 6. Cleaning assembly; 61. Horizontal plate; 62. Groove; 63. Brush bristles; 64. Clearance groove; 7. Servo motor; 71. Lead screw; 8. Negative pressure assembly; 81. Air outlet; 82. Negative pressure fan; 83. First partition; 9. Sealing assembly; 91. Cover plate; 92. Support plate; 93. Electric telescopic rod; 10. Smoke inlet pipe; 11. Smoke exhaust pipe; 12. Second partition. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figures 1-4 As shown, an electrostatic dust removal device is disclosed, comprising a dust collection box 1, a dust hopper 2 fixedly connected to the bottom of the dust collection box 1, multiple dust collection electrode plates 3 fixed at equal intervals on the inner top wall of the dust collection box 1, multiple discharge electrodes 4 fixed on the inner top wall of the dust collection box 1 between two adjacent dust collection electrode plates 3, a guide rod 5 fixedly fixed on one side inside the dust collection box 1, and a cleaning component 6 slidably connected to the surface of the guide rod 5, a servo motor 7 fixedly installed on the upper surface of the dust collection box 1 to drive the cleaning component 6 to move, a negative pressure component 8 provided on the side wall of the dust hopper 2, a number of air inlets 101 opened on the top of the dust collection box 1, and a sealing component 9 provided above the air inlets 101, and a smoke inlet pipe 10 and a smoke exhaust pipe 11 fixed on both sides of the side wall of the dust collection box 1, respectively.
[0024] The cleaning component 6 includes a horizontal plate 61 that is slidably connected to the guide rod 5. A plurality of grooves 62 are provided on one side of the horizontal plate 61. Brush bristles 63 are fixed to the inner sidewalls of the grooves 62. A plurality of dust collection electrode plates 3 are located inside the plurality of grooves 62 respectively, and the brush bristles 63 are in contact with the surface of the dust collection electrode plates 3.
[0025] When the horizontal plate 61 moves up and down along the surface of the guide rod 5, the bristles 63 in the groove 62 will scrape off the dust on the surface of the dust collection electrode plate 3, ensuring the dust cleaning effect on the surface of the dust collection electrode plate 3.
[0026] The horizontal plate 61 has multiple clearance grooves 64 on the side near the discharge electrode 4, and the discharge electrode 4 is located inside the clearance grooves 64.
[0027] By setting the clearance groove 64, it is easy to pass through the discharge electrode 4.
[0028] A lead screw 71 is fixedly connected to the bottom output end of the servo motor 7. The lead screw 71 passes through the horizontal plate 61 and is threadedly connected to the horizontal plate 61.
[0029] After the servo motor 7 drives the lead screw 71 to rotate, the lead screw 71 will drive the horizontal plate 61 to move along the guide rod 5. By controlling the servo motor 7 to rotate forward or reverse, the horizontal plate 61 can be driven to move up or down.
[0030] A second mesh 12 is fixed to the side wall of the dust collector 1, near the exhaust pipe 11. The second mesh 12 can prevent dust from being discharged from the exhaust pipe 11.
[0031] The negative pressure component 8 includes an air outlet 81 opened on the side wall of the ash hopper 2, a first partition net 83 fixed inside the air outlet 81, and a negative pressure fan 82 fixedly connected to the lower surface of the ash hopper 2 near the air outlet 81.
[0032] By drawing negative pressure inside the dust hopper 2 using the negative pressure fan 82, the dust in the dust collector 1 can fall into the dust hopper 2. In this embodiment, the bottom of the dust hopper 2 is connected to a screw conveyor.
[0033] The sealing assembly 9 includes a cover plate 91 located on the upper surface of the dust collector 1 and two support plates 92 fixed to the upper surface of the dust collector 1. The top of each of the two support plates 92 is fixedly connected to an electric telescopic rod 93. The bottom telescopic end of the electric telescopic rod 93 is fixedly connected to the upper surface of the cover plate 91. A third partition is fixed inside the air inlet 101.
[0034] The cover plate 91 can be moved up and down by the electric telescopic rod 93. When the cover plate 91 covers the surface of the air inlet 101, it can block the air inlet 101. When the electric telescopic rod 93 moves the cover plate 91 up, it is easy for external air to enter the dust collector 1 from the air inlet 101, and the negative pressure component 8 can be used to draw negative pressure.
[0035] Working principle: When the dust removal device is in normal use, the flue gas enters the dust collection box 1 through the inlet pipe 10. Under the discharge action of the discharge electrode 4, the dust becomes charged and is adsorbed on the surface of the dust collection electrode plate 3. The flue gas after dust removal is discharged from the exhaust pipe 11. When it is necessary to clean the dust on the surface of the dust collection electrode plate 3, the negative pressure fan 82 is started, and then the servo motor 7 is started to rotate alternately in forward and reverse directions. The servo motor 7 drives the lead screw 71 to rotate, and the lead screw 71 drives the horizontal plate 61 to move up and down reciprocally. The brush bristles 63 scrape off the dust on the surface of the dust collection electrode plate 3. The scraped dust is sucked into the ash hopper 2. Under the obstruction of the first partition 83, the dust will not enter the negative pressure fan 82. The dust is discharged from the bottom of the ash hopper 2 under the action of gravity.
[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. An electrostatic dust removal device, comprising a dust collection box (1), characterized in that: The dust collector (1) is fixedly connected to the bottom of the dust collector (2). Multiple dust collection electrode plates (3) are fixed at equal intervals on the inner top wall of the dust collector (1). Multiple discharge electrodes (4) are fixed on the inner top wall of the dust collector (1) and located between two adjacent dust collection electrode plates (3). A guide rod (5) is fixed on one side inside the dust collector (1), and a cleaning component (6) is slidably connected to the surface of the guide rod (5). A servo motor (7) for driving the cleaning component (6) to move is fixedly installed on the upper surface of the dust collector (1). A negative pressure component (8) is provided on the side wall of the dust collector (2). Several air inlets (101) are opened on the top of the dust collector (1), and a sealing component (9) is provided above the air inlets (101). A smoke inlet pipe (10) and a smoke exhaust pipe (11) are fixed on both sides of the side wall of the dust collector (1).
2. The electrostatic dust removal device according to claim 1, characterized in that: The cleaning assembly (6) includes a horizontal plate (61) slidably connected to the guide rod (5). A plurality of grooves (62) are provided on one side of the horizontal plate (61). Brush bristles (63) are fixed on the inner sidewall of each groove (62). A plurality of dust collection electrode plates (3) are located inside the plurality of grooves (62). The brush bristles (63) are in contact with the surface of the dust collection electrode plates (3).
3. The electrostatic dust removal device according to claim 2, characterized in that: The horizontal plate (61) has multiple clearance grooves (64) on the side near the discharge electrode (4), and the discharge electrode (4) is located inside the clearance grooves (64).
4. The electrostatic dust removal device according to claim 2, characterized in that: The bottom output end of the servo motor (7) is fixedly connected to a lead screw (71), which passes through the horizontal plate (61) and is threadedly connected to the horizontal plate (61).
5. The electrostatic dust removal device according to claim 1, characterized in that: A second mesh (12) is fixed to the side wall of the dust collector (1) and near the exhaust pipe (11).
6. The electrostatic dust removal device according to claim 1, characterized in that: The negative pressure component (8) includes an air outlet (81) opened on the side wall of the ash hopper (2), a first partition net (83) is fixed inside the air outlet (81), and a negative pressure fan (82) is fixedly connected to the lower surface of the ash hopper (2) near the air outlet (81).
7. The electrostatic dust removal device according to claim 1, characterized in that: The sealing assembly (9) includes a cover plate (91) located on the upper surface of the dust collector (1) and two support plates (92) fixed on the upper surface of the dust collector (1). The top of each of the two support plates (92) is fixedly connected to an electric telescopic rod (93). The bottom telescopic end of the electric telescopic rod (93) is fixedly connected to the upper surface of the cover plate (91). A third partition is fixed inside the air inlet (101).