Electrostatic cyclone dust collector

Abstract

The electrostatic cyclone dust collector comprises a cylinder body, a cone, a core tube, a support frame, a brush frame, a brush and a corona electrode, the side wall of the cylinder body is provided with an inlet tangent to the side surface of the cylinder body, the lower end of the cylinder body is provided with an opening and is connected with the cone, the upper end of the cone is communicated with an inner cavity of the cylinder body, the lower end of the cone is a tip and is provided with a dust outlet, and the corona electrode is arranged on the core tube. A core pipe is arranged at the upper end of the barrel, an air outlet is formed in the upper end of the core pipe, the lower end of the core pipe is communicated with the inner cavity of the barrel, a supporting frame is arranged at the lower end of the core pipe, the center of the supporting frame is rotationally connected with a brush frame, a brush is arranged on the inner surfaces of the side walls of the barrel and the cone through the brush frame, and corona electrodes are arranged in the inner cavity of the barrel in a surrounding array mode. According to the utility model, the hairbrush is pushed to rotate by rotating airflow, and the hairbrush continuously rotates under the action of the spiral airflow flowing in from the inlet, so that dust particles adsorbed on the inner wall of the cylinder body can be swept down to remove dust, and smaller dust can also be captured; and the corona electrode can realize electrostatic dust collection of smaller dust.

Description

Technical Field

[0001] This utility model relates to the field of separation and dust removal technology, specifically to an electrostatic cyclone dust collector. Background Technology

[0002] Cyclone separation technology possesses excellent performance in capturing and separating fine particles ranging from 1 to 10 μm. It also features energy savings, compact structure, and high stability, making it widely used in industries such as metallurgy, chemical engineering, petroleum, construction, machinery, power generation, textiles, and food processing. During the operation of a cyclone separator, the separation process relies on centrifugal force, which drives the material out of the designated space, through its edge, and ultimately separates it.

[0003] However, when the size of the material is small, centrifugal force is insufficient to counteract its impact, resulting in poor separation. Due to factors such as the production scale and environment of the factory, effective separation and removal of dust particles and other contaminants from dusty gases are necessary.

[0004] Therefore, there is an urgent need for an electrostatic cyclone dust collector to solve the problem of poor dust separation and removal effect on dust-laden gas. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by providing an electrostatic cyclone dust collector to solve the problem of poor dust separation and removal efficiency for dust-laden gases.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An electrostatic cyclone dust collector is characterized by comprising a cylinder, a cone, a core tube, a support frame, a brush frame, brushes, and corona electrodes. The side wall of the cylinder has an inlet tangent to the side of the cylinder. The lower end of the cylinder is open and connected to the cone. The upper end of the cone is connected to the inner cavity of the cylinder, and the lower end of the cone is pointed and has a dust outlet. The upper end of the cylinder has a core tube with an air outlet at its upper end and a connection to the inner cavity of the cylinder at its lower end. The lower end of the core tube has a support frame. The center of the support frame is rotatably connected to the brush frame. The brushes are disposed on the inner side walls of the cylinder and the cone through the brush frame. The corona electrodes are arranged in a surrounding array in the inner cavity of the cylinder to provide an electric field.

[0008] To optimize the above technical solution, the specific measures also include:

[0009] Furthermore, it also includes a drag reducer, which is disposed inside the core tube. The upper end of the brush holder passes through the support frame and is fixedly connected to the central axis of the drag reducer. The drag reducer allows gas to pass through from bottom to top.

[0010] Furthermore, the brush holder includes a central shaft, several connecting rods, several conical brushes, and several cylindrical brushes. The driving structure is connected to the upper end of the central shaft, and the lower end of the central shaft extends vertically to the connection surface of the cylindrical and conical parts. Several connecting rods are arranged radially at intervals. Each connecting rod is connected to a conical brush and a cylindrical brush through a detachable structure. The cylindrical brushes are vertically oriented upwards and fit against the inner wall of the cylindrical part, while the conical brushes are vertically oriented downwards and fit against the inner wall of the conical part.

[0011] Furthermore, the detachable structure includes a limiting protrusion and a limiting spring. The ends of the connecting rods are all provided with vertical insertion rods. Each insertion rod is provided with a mounting groove. The mounting groove is provided with a limiting spring and a retractable limiting protrusion connected to the limiting spring. The lower end of the cylindrical brush can be inserted into the outside of the corresponding insertion rod, and a snap-fit ​​hole for the limiting protrusion to be inserted is provided on the side wall of the cylindrical brush. The upper end of the conical brush can be inserted into the outside of the corresponding insertion rod, and a snap-fit ​​hole for the limiting protrusion to be inserted is provided on the side wall of the conical brush.

[0012] Furthermore, the lower end of the core tube is placed in the inner cavity of the cylinder, and the corona electrode is arranged around the core tube between the core tube and the brush.

[0013] Furthermore, the upper end of the corona electrode extends from the upper end of the cylinder for connecting to an external power source, and an insulating layer is provided at the junction of the corona electrode and the cylinder.

[0014] Furthermore, it also includes an inlet side plate and an inlet flange. The upper side wall of the cylinder is connected to an arc-shaped inlet side plate, and the end of the inlet side plate is provided with an inlet, and the inlet is provided with an inlet flange.

[0015] Furthermore, the cylinder and the cone are detachably connected via a cylinder flange.

[0016] Furthermore, a gasket is provided between the cylinder flange on the cylinder body and the cylinder flange on the cone body.

[0017] Furthermore, the upper end of the cylinder is provided with a first inspection port, and the side wall of the cone is provided with a second inspection port.

[0018] The beneficial effects of this utility model are:

[0019] In use, this device introduces high-speed dust-laden gas through an inlet tangential to the side of the cylinder. The gas changes from linear motion to a rotating airflow in a circular motion. Most of the rotating airflow flows downwards in a spiral pattern along the wall of the device. During this process, dust particles are thrown against the wall and, upon contact, lose their inertia and fall down the wall due to momentum from the inlet velocity and downward gravity, entering the dust collection hopper from the outlet. Simultaneously, the rotating airflow drives the brush to rotate along the connection between the brush holder and the support frame. The brush rotates continuously under the action of the spiral airflow entering from the inlet, sweeping off the dust particles adsorbed on the inner wall of the cylinder, achieving continuous and effective dust removal. It can also capture smaller dust particles. The corona electrode can generate a corona effect through energization, ionizing the air and charging the dust particles, further achieving electrostatic dust removal for smaller dust particles.

[0020] This invention features a high-performance, wear-resistant, corrosion-resistant conductive coating and an insulating coating applied to the inner and outer surfaces of the cylinder, respectively. These coatings not only improve the overall performance of the dust collector but also ensure its safe operation. Furthermore, the coatings effectively prevent corrosion of the cylinder material by the corona electrode, extending the equipment's service life. Attached Figure Description

[0021] Figure 1 This is a structural cross-sectional view of an electrostatic cyclone dust collector proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the external structure of an electrostatic cyclone dust collector proposed in this utility model;

[0023] Figure 3 This is a top view of the structure of an electrostatic cyclone dust collector proposed in this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the brush holder of an electrostatic cyclone dust collector proposed in this utility model;

[0025] Figure 5 This is a top view of the drag reducer structure of an electrostatic cyclone dust collector proposed in this utility model;

[0026] Figure 6 This is a schematic diagram of the drag reducer of an electrostatic cyclone dust collector proposed in this utility model;

[0027] Figure 7 This is a schematic diagram of the corona electrode structure of an electrostatic cyclone dust collector proposed in this utility model;

[0028] Figure 8 This is a top view of the structure of the corona electrode of an electrostatic cyclone dust collector proposed in this utility model;

[0029] Figure 9 This is a schematic diagram of the support frame for an electrostatic cyclone dust collector proposed in this utility model;

[0030] Figure 10 This is a top view of the support frame of an electrostatic cyclone dust collector proposed in this utility model.

[0031] Reference numerals: 1. Inlet flange, 2. Core tube, 3. Inlet side plate, 4. Corona electrode, 5. Cylinder, 6. Support frame, 7. Cylinder flange, 8. Gasket, 9. Support, 10. Brush, 11. Cone, 12. Brush holder, 13. Damper, 14. First inspection port, 15. Second inspection port, 16. Central shaft, 17. Connecting rod, 18. Conical brush, 19. Cylinder brush, 20. Limiting protrusion, 21. Limiting spring. Detailed Implementation

[0032] The present invention will now be described in detail with reference to the accompanying drawings.

[0033] As attached Figure 1 and attached Figure 2 As shown, an electrostatic cyclone dust collector according to an embodiment of the present invention includes a cylinder 5, a cone 11, a core tube 2, a support frame 6, a brush holder 12, a brush 10, and a corona electrode 4. The upper side wall of the cylinder 5 is provided with an inlet tangent to the side of the cylinder 5. The lower end of the cylinder 5 is open and connected to the cone 11. The upper end of the cone 11 is connected to the inner cavity of the cylinder 5, and the lower end of the cone 11 is pointed and provided with a dust outlet. The core tube 2 is provided at the center of the upper end of the cylinder 5. The upper end of the core tube 2 is provided with an air outlet. The lower end of the core tube 2 is connected to the inner cavity of the cylinder 5. The lower end of the core tube 2 is provided with a support frame 6. The center of the support frame 6 is limited and rotatably connected to the brush holder 12. The brush 10 is set on the inner surface of the side wall of the cylinder 5 and the cone 11 through the brush holder 12. The corona electrode 4 is arranged in a surrounding array in the inner cavity of the cylinder 5 to provide an electric field.

[0034] In use, this utility model device introduces high-speed dust-laden gas through an inlet tangential to the side of the cylinder 5. The gas changes from linear motion to a rotating airflow in a circular motion. Most of the rotating airflow flows downwards in a spiral pattern along the wall of the device. During this process, dust particles are thrown towards the wall and, upon contact with it, lose their inertial force and fall down the wall due to the momentum of the inlet velocity and downward gravity, entering the dust collection hopper from the dust outlet. Simultaneously, the rotating airflow drives the brush 10 to rotate along the connection between the brush holder 12 and the support frame 6. The brush 10 rotates continuously under the action of the spiral airflow entering from the inlet, sweeping off the dust particles adsorbed on the inner wall of the cylinder 5, achieving continuous and effective dust removal. It can also capture smaller dust particles. The corona electrode 4 can generate a corona phenomenon through energization, ionizing the air and charging the dust particles, further achieving electrostatic dust removal for smaller dust particles.

[0035] In this embodiment, 15 corona electrodes 4 can be evenly arranged as needed, as shown in the attached figure. Figure 7 and attached Figure 8 As shown, it can use flat steel barbed corona electrodes. The introduction of 15 corona electrodes 4 greatly improves the ability to capture fine dust particles and significantly enhances the dust removal effect.

[0036] As attached Figure 3 Appendix Figure 5 and attached Figure 6 As shown, in another specific embodiment, a drag reducer 13 is also included. The drag reducer 13 is disposed inside the core tube 2. The upper end of the brush holder 12 passes through the support frame 6 and is fixedly connected to the central axis of the drag reducer 13. The drag reducer 13 allows gas to pass through from bottom to top. In this embodiment, the brush 10 rotates continuously under the action of the spiral airflow flowing in from the inlet, sweeping off the dust particles adsorbed on the inner wall of the cylinder 5 and collecting them through the dust collection hopper at the lower dust outlet. At the same time, when the brush 10 rotates, the brush holder 12 used to mount the brush 10 drives the drag reducer 13 to rotate, thereby effectively drawing the dust-removed gas to the outlet for discharge. This effectively reduces the resistance generated by the airflow when passing through the brush 10, ensuring smooth airflow and effective dust separation.

[0037] As attached Figure 4 As shown, in another specific embodiment, the brush holder 12 includes a central shaft 16, several connecting rods 17, several conical brushes 18, and several cylindrical brushes 19. A drive structure is connected to the upper end of the central shaft 16, and the lower end of the central shaft 16 extends vertically to the connection surface between the cylindrical body 5 and the conical body 11. Several connecting rods 17 are radially spaced, and each connecting rod 17 is connected to a conical brush 18 and a cylindrical brush 19 via a detachable structure. The cylindrical brushes 19 are vertically oriented upwards and fitted against the inner wall of the cylindrical body 5, while the conical brushes 18 are vertically oriented downwards and fitted against the inner wall of the conical body 11. This facilitates the disassembly and cleaning of the conical brushes 18 and the cylindrical brushes 19.

[0038] The detachable structure includes a limiting protrusion 20 and a limiting spring 21. Each end of the connecting rod 17 has a vertically oriented insertion rod, and each insertion rod has a mounting groove. The mounting groove contains the limiting spring 21 and a retractable limiting protrusion 20 connected to the limiting spring 21. The lower end of the cylindrical brush 19 can be inserted into the outer side of the corresponding insertion rod, and a snap-fit ​​hole for the limiting protrusion 20 to be inserted is provided on the side wall of the cylindrical brush 19. The upper end of the conical brush 18 can be inserted into the outer side of the corresponding insertion rod, and a snap-fit ​​hole for the limiting protrusion 20 to be inserted is provided on the side wall of the conical brush 18. In use, pressing the limiting spring 21 separates the conical brush 18 and the cylindrical brush 19 from the insertion rod, allowing for convenient disassembly and assembly of the conical brush 18 and the cylindrical brush 19 as needed. During assembly, simply reconnect them.

[0039] In another specific embodiment, the lower end of the core tube 2 is placed in the inner cavity of the cylinder 5, and the corona electrode 4 is arranged around the core tube 2 between the core tube 2 and the brush 10. In this way, the space between the outer wall of the core tube 2 and the inner wall of the cylinder 5 can serve as a guiding channel for the dust-laden gas, thereby better forming a rotating airflow. At the same time, the corona electrode 4 can better charge the dust particles.

[0040] In another specific embodiment, the upper end of the corona electrode 4 extends from the upper end of the cylinder 5 for connecting to an external power source, and an insulating layer is provided at the junction of the corona electrode 4 and the cylinder 5. During operation, the corona electrode 4 can be powered by a high-voltage power supply device, generating a high voltage at its tip, thereby causing a corona phenomenon in the surrounding air, ionizing the air and charging the dust particles, thus achieving electrostatic dust removal. In this embodiment, a high-performance wear-resistant and corrosion-resistant conductive coating is applied to the inside of the cylinder 5 and the cone 11, while an insulating coating is applied to the outer surfaces of the cylinder 5 and the cone 11. This improves the wear resistance and corrosion resistance of the dust collector. The inner and outer surfaces of the cylinder 5 are coated with a high-performance wear-resistant and corrosion-resistant conductive coating and an insulating coating, respectively. These coatings not only improve the overall performance of the dust collector but also ensure the safe operation of the equipment. At the same time, the presence of the coatings effectively prevents the corona electrode from corroding the material of the cylinder 5, extending the service life of the equipment.

[0041] In another specific embodiment, it also includes an inlet side plate 3 and an inlet flange 1. An arc-shaped inlet side plate 3 is connected to the upper side wall of the cylinder 5, and an inlet is provided at the end of the inlet side plate 3, with an inlet flange 1 at the inlet. In this embodiment, the inlet side plate 3 is used to introduce dust-laden gas and guide the gas to rotate within the cylinder 5, facilitating the formation of a rotating airflow; the inlet flange 1 facilitates the connection and assembly between devices.

[0042] In another specific embodiment, the cylinder 5 and the cone 11 are detachably connected by a cylinder flange 7. This allows for easy assembly and disassembly of the cylinder 5 and the cone 11, enabling the disassembly or repair of their internal structures.

[0043] A gasket 8 is provided between the cylinder flange 7 on the cylinder 5 and the cylinder flange 7 on the cone 11. In this way, the gasket 8 increases the airtightness of the device.

[0044] In another specific embodiment, the upper end of the cylinder 5 is provided with a first inspection port 14, and the side wall of the cone 11 is provided with a second inspection port 15. Protective glass can be installed on both the first inspection port 14 and the second inspection port 15 as needed. In this embodiment, the first inspection port 14 and the second inspection port 15 can be used to observe the internal condition of the device. When a problem occurs in the equipment, the cause of the internal problem can also be observed through the first inspection port 14 and the second inspection port 15.

[0045] As attached Figure 9 and attached Figure 10 As shown, in another specific embodiment, the middle of the support frame 6 can be rotatably limited to the central shaft 16 of the brush holder 12 via a bearing, and the two ends of the support frame 6 can be snapped onto the lower inner wall of the core tube 2.

[0046] In another specific embodiment, the outer side wall of the cone 11 may be provided with a support 9 as needed to facilitate the placement, installation and use of the entire device.

[0047] In use, the dust-laden gas enters the device at a high speed along the tangential direction of the inner wall of the cylinder 5. The airflow changes from linear motion to circular rotation. Most of the rotating airflow spirals downwards along the wall towards the cone 11, i.e., the outer vortex. During the rotation, the dust-laden gas generates centrifugal force, throwing dust particles with a density greater than that of the gas towards the wall. Once the dust particles contact the wall, they lose inertia and fall down the wall due to the momentum of the inlet velocity and downward gravity, entering the dust collection hopper through the dust removal port. When the rotating and descending outer vortex reaches the cone 11, it converges towards the center due to the conical contraction. When the airflow reaches a certain position at the lower end of the cone 11, it continues to spiral upwards along the axis of the cyclone dust collector in the same direction of rotation, i.e., the inner vortex. Finally, the purified gas is discharged outside the device through the core tube 2. The corona electrode 4 can effectively charge fine dust particles, which are then adsorbed onto the inner wall of the cylinder 5 or the brush 10 under the action of the electric field, significantly improving the dust removal effect.

[0048] In actual use, dust-laden gas enters through the inlet flange 1. After being charged by the corona electrode 4, the dust particles become charged. Under the action of the rotating airflow, the charged dust particles gather and fall towards the inner wall of the cylinder 5, or are captured by the brush 10. The cleaned gas is then discharged from the core tube 2 to the outside of the device. Regular inspection and replacement of the brush 10 can ensure the continuous and effective operation of the device.

[0049] In summary, this utility model device has advantages such as compact structure, stable performance, and good dust removal effect. Its unique corona electrode 4 and brush 10 structure enable the effective capture and separation of even fine dust particles, greatly improving dust removal efficiency. Meanwhile, the high-performance coating and insulating coating ensure long-term stable operation and safe use of the equipment.

[0050] It should be noted that the terms such as "upper", "lower", "left", "right", "front", and "back" used in this utility model are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0051] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should be considered within its protection scope.

Claims

1. An electrostatic cyclone dust collector, characterized in that: The device includes a cylinder (5), a cone (11), a core tube (2), a support frame (6), a brush holder (12), a brush (10), and a corona electrode (4). The side wall of the cylinder (5) has an inlet tangent to the side of the cylinder (5). The lower end of the cylinder (5) is open and connected to the cone (11). The upper end of the cone (11) is connected to the inner cavity of the cylinder (5). The lower end of the cone (11) is pointed and has a dust outlet. The upper end of the cylinder (5) is open. A core tube (2) is provided, with an air outlet at the upper end of the core tube (2) and the lower end of the core tube (2) connected to the inner cavity of the cylinder (5). A support frame (6) is provided at the lower end of the core tube (2), and a brush frame (12) is rotatably connected to the center of the support frame (6). The brush (10) is set on the inner side wall of the cylinder (5) and the cone (11) through the brush frame (12). The corona electrodes (4) are arranged in a surrounding array in the inner cavity of the cylinder (5) to provide an electric field.

2. The electrostatic cyclone dust collector according to claim 1, characterized in that: It also includes a drag reducer (13), which is disposed inside the core tube (2). The upper end of the brush holder (12) passes through the support frame (6) and is fixedly connected to the central axis of the drag reducer (13). The drag reducer (13) allows gas to pass through from bottom to top.

3. The electrostatic cyclone dust collector according to claim 1, characterized in that: The brush holder (12) includes a central shaft (16), several connecting rods (17), several conical brushes (18) and several cylindrical brushes (19). The driving structure is connected to the upper end of the central shaft (16). The lower end of the central shaft (16) extends vertically to the connecting surface of the cylindrical body (5) and the cone (11), and several connecting rods (17) are arranged radially at intervals. Each connecting rod (17) is connected to a conical brush (18) and a cylindrical brush (19) through a detachable structure. The cylindrical brush (19) is vertically upward and attached to the inner wall of the cylindrical body (5), and the conical brush (18) is vertically downward and attached to the inner wall of the cone (11).

4. The electrostatic cyclone dust collector according to claim 3, characterized in that: The detachable structure includes a limiting protrusion (20) and a limiting spring (21). The ends of the connecting rods (17) are provided with vertical insertion rods. Each insertion rod is provided with a mounting groove. The mounting groove is provided with a limiting spring (21) and a retractable limiting protrusion (20) connected to the limiting spring (21). The lower end of the cylindrical brush (19) can be inserted into the outside of the corresponding insertion rod, and the side wall of the cylindrical brush (19) is provided with a snap-fit ​​hole for the limiting protrusion (20) to be inserted. The upper end of the conical brush (18) can be inserted into the outside of the corresponding insertion rod, and the side wall of the conical brush (18) is provided with a snap-fit ​​hole for the limiting protrusion (20) to be inserted.

5. The electrostatic cyclone dust collector according to claim 1, characterized in that: The lower end of the core tube (2) is placed in the inner cavity of the cylinder (5), and the corona electrode (4) is arranged around the core tube (2) between the core tube (2) and the brush (10).

6. The electrostatic cyclone dust collector according to claim 1, characterized in that: The upper end of the corona electrode (4) extends from the upper end of the cylinder (5) for connecting to an external power source, and an insulating layer is provided at the junction of the corona electrode (4) and the cylinder (5).

7. The electrostatic cyclone dust collector according to claim 1, characterized in that: It also includes an inlet side plate (3) and an inlet flange (1). The upper side wall of the cylinder (5) is connected to an arc-shaped inlet side plate (3). The end of the inlet side plate (3) is provided with an inlet, and the inlet is provided with an inlet flange (1).

8. An electrostatic cyclone dust collector according to claim 1, characterized in that: The cylinder (5) and the cone (11) are detachably connected by a cylinder flange (7).

9. An electrostatic cyclone dust collector according to claim 8, characterized in that: A gasket (8) is provided between the cylinder flange (7) on the cylinder (5) and the cylinder flange (7) on the cone (11).

10. An electrostatic cyclone dust collector according to claim 1, characterized in that: The upper end of the cylinder (5) is provided with a first inspection port (14), and the side wall of the cone (11) is provided with a second inspection port (15).

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