Electric dust remover capable of reducing reentrainment of dust
By designing cyclic and moving dust collectors and targeted cleaning devices in the electro-dust collector, the problem of secondary dust in the electro-dust collector is solved, and the dust removal effect and efficiency are improved.
Patent Information
- Application Number
- CN202510132084.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-06
- Publication Date
- 2025-05-13
AI Technical Summary
In an electro-dust collector, when hitting the dust collecting plate, fly ash particles may enter the air again, forming secondary dust, affecting the dust removal effect and usage performance.
An electro-dust collector is designed, including a housing, a dust collection assembly and a dust cleaning device. The dust collector can be circulated between the dust drop position and the dust collection position. The dust cleaning device targets the dust collector to reduce secondary dust.
By relatively concentratedly disengage the dust collection from the dust collector, secondary dust is reduced, dust removal effect and efficiency are improved, and dust pollution areas are controlled.
Smart Images
Figure CN119972360A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of electrostatic dust removal, and in particular to an electrostatic precipitator for reducing secondary dust. Background Art
[0002] In the industrial production process, electrostatic precipitator is one of the technical means of dust removal in the production process of heat source plants, and has the characteristics of high efficiency and low energy consumption. In the related technology, the basic principle of the electrostatic precipitator is to apply a high-voltage electric field to charge the dust particles, and then collect them on the dust collecting plate under the action of the electric field force; by hitting the dust collecting plate, the accumulated dust particles can fall into the ash hopper under the action of gravity, thereby achieving the purpose of dust removal. However, in the process of hitting the dust collecting plate, the fly ash particles may enter the air again, forming secondary dust, affecting the dust removal effect of the dust collector, and making it difficult to clean the dust collecting plate, affecting the performance of the electrostatic precipitator. Summary of the invention
[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the purpose of the present invention is to provide an electrostatic precipitator for reducing secondary dust, which can hit multiple dust collecting parts one by one to remove dust, so that the dust can be relatively concentratedly separated from the dust collecting parts for collection, thereby reducing secondary dust and improving the dust removal effect and efficiency.
[0004] The present application proposes an electrostatic precipitator for reducing secondary dust, the electrostatic precipitator comprising a shell, a dust collecting assembly and a cleaning device; a dust collecting channel is formed in the shell; the dust collecting assembly is arranged in the dust collecting channel and is consistent with the extension direction of the dust collecting channel, and the dust collecting assembly is constructed into a plurality of components arranged in parallel in the dust collecting channel; the dust collecting assembly comprises a mounting frame and a dust collecting part, and the mounting frame is arranged in the dust collecting channel; the dust collecting part is constructed into a plurality of components, and the plurality of dust collecting parts can be cyclically movably arranged on the mounting frame to be suitable for any dust collecting part to switch between a dust falling position and a dust collecting position, and the dust collecting assembly is suitable for forming an electric field in the dust collecting channel to be suitable for the dust collecting part to adsorb dust; the cleaning device is arranged in the dust collecting channel and is suitable for cleaning the dust collecting part moved to the dust falling position.
[0005] According to the electrostatic precipitator of the present application, since the multiple dust collecting parts that absorb dust can be cyclically switched between the dust falling position and the dust collecting position, the dust cleaning device can specifically clean the dust collecting parts located at the dust falling position and clean the multiple dust collecting parts in sequence, and the dust collecting parts located at the dust falling position and the dust collecting parts located at the dust collecting position will not interfere with each other during the cleaning process, so the dust is relatively concentrated during cleaning, which is convenient for controlling the dust pollution area and pollution range, avoiding fly ash diffuse pollution, and reducing secondary dust. The electrostatic precipitator of the present application can improve the dust removal effect and efficiency.
[0006] According to some embodiments of the present application, the dust collecting piece is suitable for moving relative to the mounting frame along an annular path perpendicular to the extension direction of the dust collecting channel. The dust collecting piece reaches the dust collecting position when it moves to the lowest point on the annular path. After leaving the dust collecting position, the dust collecting piece switches to the dust collecting position.
[0007] According to some embodiments of the present application, the dust collecting assembly also includes a guide rail and a sliding member, the guide rail is arranged on the mounting frame, and the guide rail is constructed as a ring guide rail; the sliding member is movably arranged on the guide rail, and the sliding member is constructed in plurality, any one of the dust collecting members is connected to at least one sliding member so as to be suitable for cyclically moving along the guide rail with the sliding member, and the dust collecting member reaches the dust falling position when it moves to the bottom of the guide rail.
[0008] According to some embodiments of the present application, the dust collection assembly also includes a driving member and a transmission chain, the driving member is arranged on the mounting frame; the transmission chain is connected to multiple sliding members and linked with the output end of the driving member to drive each sliding member to move along the guide rail.
[0009] According to some embodiments of the present application, the dust collecting piece is configured to bend and extend in the extension direction of the dust collecting channel, or the dust collecting piece is configured to be a dust collecting plate extending along the extension direction of the dust collecting channel.
[0010] According to some embodiments of the present application, the dust collecting part includes a dust collecting rod, which is constructed as a plurality of dust collecting rods arranged along the extension direction of the dust collecting part, the plurality of dust collecting rods are connected end to end in sequence, and each dust collecting rod is inclined with respect to the extension direction of the dust collecting channel, and the inclination directions of two adjacent dust collecting rods are opposite.
[0011] According to some embodiments of the present application, the cleaning device includes a collecting member, a vibrating member and / or a cleaning member; the vibrating member is arranged in the shell, and the vibrating member is suitable for selectively knocking the dust collecting member located at the dust falling position; the cleaning member is arranged in the shell, and the dust collecting member contacts the cleaning member when passing the dust falling position to be suitable for cleaning the dust on the surface of the dust collecting member; the collecting member is arranged below the dust falling position to be suitable for collecting dust.
[0012] According to some embodiments of the present application, the rapping member includes a rotating rod and a vibrating hammer; the rotating rod is rotatably disposed in the shell; the vibrating hammer is disposed on the rotating rod, and the vibrating hammer is suitable for rotating with the rotating rod to selectively strike the dust collecting member located at the dust falling position.
[0013] According to some embodiments of the present application, the vibrator is suitable for striking the end of the dust collecting piece; the dust collecting assembly also includes an excitation piece, which is connected to the end of the dust collecting piece and protrudes from the mounting frame, and the vibrator can selectively strike the excitation piece to drive the dust collecting piece to vibrate.
[0014] According to some embodiments of the present application, the dust collecting assembly further includes a buffer member, which is disposed between the sliding member and the dust collecting member, and the buffer member is rotatably connected to the sliding member.
[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0017] Figure 1 is a schematic structural diagram of an electrostatic precipitator according to some embodiments of the present application;
[0018] Figure 2 is an exploded schematic diagram of a partial structure of an electrostatic precipitator according to some embodiments of the present application;
[0019] Figure 3 is a schematic structural diagram of a dust collection assembly according to some embodiments of the present application;
[0020] Figure 4 is a schematic structural diagram of a dust collection assembly according to some embodiments of the present application;
[0021] Figure 5 is a schematic structural diagram of a dust collecting assembly and a rapping member combination according to some embodiments of the present application;
[0022] Figure 6 It is a schematic diagram of the structure of a dust collecting part according to some embodiments of the present application.
[0023] Reference numerals:
[0024] Shell 10; air inlet 11; air outlet 12;
[0025] Dust collecting assembly 20; dust collecting member 21; dust collecting rod 211; mounting frame 22; guide rail 23; sliding member 24; driving member 25; exciting member 26; buffer member 27;
[0026] Discharge member 30;
[0027] Vibrating member 40; rotating rod 41; vibrating hammer 42;
[0028] Cleaning parts 50;
[0029] Collect 60 pieces. DETAILED DESCRIPTION
[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0031] Reference below Figure 1-Figure 6 An electrostatic precipitator for reducing secondary dust generation according to an embodiment of the present invention is described.
[0032] The present application proposes an electrostatic precipitator for reducing secondary dust, the electrostatic precipitator includes a shell 10, a dust collecting assembly 20 and a cleaning device; a dust collecting channel is formed in the shell 10; the dust collecting assembly 20 is arranged in the dust collecting channel and is consistent with the extension direction of the dust collecting channel, and the dust collecting assembly 20 is constructed as a plurality of dust collecting assemblies 20 arranged in parallel in the dust collecting channel; the dust collecting assembly 20 includes a mounting frame 22 and a dust collecting member 21, and the mounting frame 22 is arranged in the dust collecting channel; the dust collecting member 21 is constructed as a plurality of dust collecting members 21, and the plurality of dust collecting members 21 can be cyclically movably arranged on the mounting frame 22, so as to be suitable for any one of the dust collecting members 21 to switch between the dust falling position and the dust collecting position, and the dust collecting assembly 20 is suitable for forming an electric field in the dust collecting channel so as to be suitable for the dust collecting member 21 to adsorb dust; the cleaning device is arranged in the dust collecting channel and is suitable for cleaning the dust collecting member 21 moved to the dust falling position.
[0033] According to the electric precipitator of the present application, the dust collecting assembly 20 is arranged in the dust collecting channel and is suitable for generating an electric field, and the dust will be adsorbed on the surface of the dust collecting member 21 under the action of the electric field. Since the dust collecting member 21 can be cyclically moved relative to the mounting frame 22, any dust collecting member 21 can be switched between the dust falling position and the dust collecting position, and multiple dust collecting members 21 can reach the dust falling position in sequence. Since the dust cleaning device is suitable for cleaning the dust collecting member 21 located at the dust falling position, multiple dust collecting members 21 can be sequentially moved to the dust falling position for cleaning.
[0034] According to the electrostatic precipitator of the present application, since the multiple dust collecting parts 21 for absorbing dust can be cyclically switched between the dust falling position and the dust collecting position, the dust cleaning device can specifically clean the dust collecting parts 21 located at the dust falling position and sequentially clean the multiple dust collecting parts 21, and the dust collecting parts 21 located at the dust falling position and the dust collecting parts 21 located at the dust collecting position will not interfere with each other during the cleaning process, so the dust is relatively concentrated during cleaning, which is convenient for controlling the dust pollution area and pollution range, avoiding fly ash diffuse pollution, and reducing secondary dust. The electrostatic precipitator of the present application can improve the dust removal effect and efficiency.
[0035] It should be noted that there are intervals between the multiple dust collecting parts 21 of the dust collecting assembly 20, and multiple dust collecting assemblies 20 are arranged in parallel, and there are also intervals between the dust collecting parts 21 of adjacent dust collecting assemblies 20. The interval arrangement of the dust collecting parts 21 helps to improve the electric field strength in the dust collecting channel, and helps to optimize the electric field distribution, form an uneven electric field distribution, reduce the electric field dead angle inside the shell 10, and thus improve the dust collection efficiency. In addition, the parallel arrangement of adjacent dust collecting assemblies 20 also helps to simplify the structure, improve the compactness inside the electrostatic precipitator equipment, and ensure the dust removal effect.
[0036] In addition, the electrostatic precipitator of the present application further includes a discharge member 30, which is disposed on the housing 10 and extends in the height direction. The discharge member 30 is configured as a cathode, and the dust collecting member 21 is configured as an anode, and an electric field is generated between the discharge member 30 and the dust collecting assembly 20. Further, the discharge member 30 is provided in multiple groups, each group includes multiple discharge members 30, and each group of discharge members 30 is independently disposed between two adjacent dust collecting assemblies 20, and the discharge member 30 and the dust collecting member 21 are arranged in a cross array, such as Figure 1 , Figure 2 In some embodiments, a plurality of mounting holes are formed on the top of the housing 10, and the discharge member 30 is disposed on the housing 10 through the mounting holes and extends into the dust collecting channel.
[0037] The housing 10 of the electrostatic precipitator of the present application is also formed with an air inlet 11 and an air outlet 12, and the air inlet 11 and the air outlet 12 are connected to the dust collecting channel so that the gas containing dust can be dust-removed and purified by the electrostatic precipitator. Figure 1 As shown, the extension direction of the dust collecting channel is the direction of the line connecting the air inlet 11 and the air outlet 12, which is represented by the X direction in the figure, and the height direction is represented by the Z direction.
[0038] According to some embodiments of the present application, the dust collecting piece 21 is suitable for moving relative to the mounting frame 22 along an annular path perpendicular to the extension direction of the dust collecting channel. The dust collecting piece 21 reaches the dust collecting position when it moves to the lowest point on the annular path. After the dust collecting piece 21 leaves the dust collecting position, it switches to the dust collecting position.
[0039] In this embodiment, the dust collecting member 21 moves cyclically relative to the mounting frame 22 along the annular path to switch between the dust collecting position and the dust collecting position. Since the dust collecting position is located at the lowest point on the annular path, when the dust cleaning device cleans one dust collecting member 21, the dust will not affect other dust collecting members 21, and the dust is not easy to fly, which can further reduce secondary dust and improve the dust removal effect and efficiency. At the same time, the dust cleaning device is arranged close to the dust dropping position, which is convenient for effectively and comprehensively cleaning the dust collecting member 21, and the dust cleaning device has a large installation space, which is convenient for installation layout.
[0040] In addition, the dust collecting part 21 leaves the dust falling position and arrives at the dust collecting position. The dust collecting position refers to any position on the annular path except the dust falling position. The dust collecting part 21 moves for a long time in the dust collecting position range and moves through a large space. The dust adsorption time is long and the adsorption amount is large. The dust collecting part 21 can effectively and evenly adsorb the dust to further improve the dust removal effect and efficiency.
[0041] According to some embodiments of the present application, the dust collecting assembly 20 further includes a guide rail 23 and a sliding member 24. The guide rail 23 is disposed on the mounting frame 22, and the guide rail 23 is configured as an annular guide rail 23. The sliding member 24 is movably disposed on the guide rail 23, and the sliding member 24 is configured as a plurality of sliding members, and any dust collecting member 21 is connected to at least one sliding member 24 so as to be suitable for cyclic movement along the guide rail 23 with the sliding member 24. The dust collecting member 21 reaches the dust falling position when it moves to the bottom of the guide rail 23. In this embodiment, the movement of the dust collecting member 21 relative to the mounting frame 22 is achieved by the cooperation of the sliding member 24 and the guide rail 23. The dust collecting member 21 is connected to the sliding member 24, and the sliding member 24 drives the dust collecting member 21 to cyclically move. The structure is simple and can adapt to the limited installation space in the dust collecting channel. In some embodiments, each dust collecting assembly 20 includes two mounting frames 22, and the dust collecting member 21 is disposed between the two mounting frames 22. The two ends of the dust collecting member 21 are each connected to a sliding member 24 and are connected to the mounting frames 22 through a guide rail 23, so that the movement of the dust collecting member 21 is smooth and efficient. The dust collecting member 21 can be driven synchronously by two sets of sliding members 24, or driven by one sliding member 24 and moved synchronously with another sliding member 24.
[0042] Furthermore, in some embodiments, the guide rail 23 is constructed as an elliptical ring, the guide rail 23 is elongated in the height direction, and has curves formed at the top and bottom, which can ensure that the sliding member 24 moves smoothly in the guide rail 23 to achieve smooth turning, avoid problems such as jamming, and help the dust collecting member 21 to continuously circulate relative to the mounting frame 22.
[0043] According to some embodiments of the present application, the dust collecting assembly 20 further includes a driving member 25 and a transmission chain, wherein the driving member 25 is disposed on the mounting frame 22; the transmission chain is connected to a plurality of sliding members 24 and is linked with the output end of the driving member 25 to drive each sliding member 24 to move along the guide rail 23. In the present embodiment, the driving member 25 drives the sliding member 24 to move along the guide rail 23 through the transmission chain, thereby driving the dust collecting member 21 to move relative to the mounting frame 22. The transmission chain can provide stable power transmission, and the transmission process is reliable. It can drive a plurality of dust collecting members 21 to realize position switching relatively independently at the same time, and the transmission efficiency is high. In addition, the structure of the transmission chain is simple, and it can adapt to the limited installation space in the dust collecting channel, and the maintenance cost is low, which is conducive to the long-term use of the electrostatic precipitator.
[0044] In some embodiments, the driving member 25 includes a guide rod and a driving motor (not shown in the figure), and the driving motor is a power frequency motor. During operation, the motor is started once every 5 minutes, and the moving speed of the sliding member 24 relative to the guide rail 23 is 0.05 m / s, and it stops after running for about 20 seconds. The working process of the driving motor is continuously cycled.
[0045] According to some embodiments of the present application, the dust collecting member 21 is configured to bend and extend in the extension direction of the dust collecting channel, or the dust collecting member 21 is configured as a dust collecting plate extending along the extension direction of the dust collecting channel. In this embodiment, the structure of the dust collecting member 21 can be configured in various forms.
[0046] In some embodiments, the dust collecting member 21 is configured to bend and extend in the extension direction of the dust collecting channel, which can increase the electric field range formed by the dust collecting member 21 and improve the dust collection capacity of the dust collecting member 21; on the other hand, it can increase the effective length of the dust collecting member 21, expand the dust collecting area, and improve the dust collection efficiency; on the other hand, it can reduce dust deposition, avoid dust accumulation to form a deposition dead zone, and avoid dust accumulation from being unable to separate from the dust collecting member 21 under the action of the dust cleaning device, thereby improving the dust removal effect. In addition, the bending and extension of the dust collecting member 21 can also reduce airflow resistance, which helps to improve the performance of the electrostatic precipitator.
[0047] In some embodiments, the dust collecting member 21 is configured as a dust collecting plate extending along the extension direction of the dust collecting channel. Figure 4 As shown, the dust collecting plate is constructed as a rectangular plate, the length direction is consistent with the extension direction of the dust collecting channel, and the width direction is consistent with the height direction or inclined toward the height direction to facilitate dust shedding. In this embodiment, the integrated board is constructed as a rectangular plate, which is easy to process and shape, has high structural strength, and has a flat surface for easy cleaning and dust removal.
[0048] According to some embodiments of the present application, the dust collecting member 21 includes a dust collecting rod 211, which is configured as a plurality of dust collecting rods 211 arranged along the extension direction of the dust collecting member 21, the plurality of dust collecting rods 211 are connected end to end in sequence, and each dust collecting rod 211 is arranged obliquely with respect to the extension direction of the dust collecting channel, and the inclination directions of two adjacent dust collecting rods 211 are opposite. Figure 3 , Figure 5 , Figure 6 As shown, the dust collecting piece 21 of this embodiment is constructed as a combination of multiple dust collecting rods 211. A single dust collecting rod 211 is easy to process and can reduce the difficulty of processing; and by adjusting the connection angle of adjacent dust collecting rods 211, the extension length and bending angle of the dust collecting piece 21 can be adjusted, so that the dust collecting piece 21 is more flexible in molding.
[0049] Furthermore, the ends of two adjacent dust collecting rods 211 overlap along the first direction, there is an angle between the two dust collecting rods 211, and the two adjacent dust collecting rods 211 are not in the same plane, so that the electric field range formed by the dust collecting component 21 can be increased, and a more uneven electric field distribution can be generated. When the number of dust collecting rods 211 is limited, the dust collecting area can be increased, and the dust removal effect can be improved; at the same time, dust can be prevented from being deposited on the surface of the dust collecting rods 211, thereby improving the dust removal effect and reducing secondary dust. The first direction refers to a direction perpendicular to the extension direction and height direction of the dust collecting component 20, Figure 1Indicated by the Y direction. In addition, the overlapping parts of two adjacent dust collecting rods 211 can be connected by bolts, which is convenient for inspecting and replacing the dust collecting rods 211. Furthermore, two dust collecting rods 211 spaced one from each other are arranged parallel to each other.
[0050] In some embodiments, the dust collecting rod 211 is configured as a column, so as to have a larger dust collecting area, so as to improve the dust collecting efficiency. Further, the dust collecting rod 211 can be configured as a trapezoidal column, and the cross section is configured as an isosceles trapezoid, which is convenient for fixed connection and also convenient for dust cleaning. In some embodiments, the cross section of the dust collecting rod 211 has a bottom side length of 6 cm, a height of 4 cm, and a bottom angle of 75°.
[0051] According to some embodiments of the present application, the dust cleaning device includes a collecting member 60, a rapping member 40 and / or a cleaning member 50; the rapping member 40 is disposed in the housing 10, and the rapping member 40 is suitable for selectively knocking the dust collecting member 21 located at the dust falling position; the cleaning member 50 is disposed in the housing 10, and the dust collecting member 21 contacts the cleaning member 50 when passing the dust falling position so as to be suitable for cleaning the dust on the surface of the dust collecting member 21; the collecting member 60 is disposed below the dust falling position so as to be suitable for collecting dust. In this embodiment, the dust attached to the surface of the dust collecting member 21 can be vibrated away from the dust collecting member 21 by knocking the dust collecting member 21 located at the dust falling position by the rapping member 40; the dust on the surface of the dust collecting member 21 can be further cleaned by the cleaning member 50 to reduce the dispersion and floating of dust; after the dust is separated from the dust collecting member 21, it is collected in the collecting member 60.
[0052] In some embodiments, Figure 1 , Figure 2 As shown, the collecting member 60 is constructed as an ash hopper, which is arranged directly below the multiple dust collecting components 20 and close to the dust falling position of the dust collecting member 21, so that the dust can quickly fall into the ash hopper under the action of gravity after leaving the dust collecting member 21, thereby reducing secondary dust.
[0053] In some embodiments, Figure 2 As shown, the dust cleaning member 50 is constructed as a brush, which is arranged at the bottom of the dust collecting assembly 20 and above the ash hopper, and is extended along the extension direction of the dust collecting member 21; the bristles of the brush cover the dust falling position of the dust collecting member 21, so that the dust collecting member 21 contacts the bristles when it moves to the dust falling position, and the bristles sweep the dust away from the dust collecting member 21. The brush of this embodiment can further remove the dust on the surface of the dust collecting member 21 that is not shaken off by vibration, especially the dust on the top of the dust collecting member 21, so as to effectively clean the dust.
[0054] Furthermore, the brush can be in dynamic contact with the surface of the dust collecting member 21 through the movement of the dust collecting member 21 itself to clean the surface dust, and the brush can also be in dynamic contact with the dust collecting member 21 through its own movement to clean the dust. Specifically, the brush is movably arranged on the mounting frame 22, and the brush is suitable for reciprocating movement relative to the mounting frame 22 at a high frequency to be suitable for dynamic contact with the dust collecting member 21. The moving direction is arbitrary, and can be constructed to be along the extension direction of the dust collecting member 21, or along the height direction, etc., and can also be constructed to be a composite movement along the extension direction and the height direction of the dust collecting member 21. In addition, the brush can also be constructed to be suitable for rotating relative to the mounting frame 22 to be in dynamic contact with the dust collecting member 21 for cleaning. Furthermore, the brush can be constructed in multiples, and multiple brushes clean the dust collecting member 21 at the same time, which can reduce cleaning dead angles.
[0055] According to some embodiments of the present application, the rapping member 40 includes a rotating rod 41 and a vibrating hammer 42; the rotating rod 41 is rotatably disposed in the housing 10; the vibrating hammer 42 is disposed on the rotating rod 41, and the vibrating hammer 42 is suitable for rotating with the rotating rod 41 to selectively strike the dust collecting member 21 located at the dust falling position. Figure 5 As shown, the rotating rod 41 rotates under the action of a driving component such as a motor, which can drive the vibrator 42 to move so that the distance between the vibrator 42 and the mounting frame 22 changes periodically. When the distance between the vibrator 42 and the mounting frame 22 is the smallest, the vibrator 42 strikes the dust collecting piece 21 to make it vibrate, thereby shaking off the dust on the surface of the dust collecting piece 21.
[0056] Further, the rapping member 40 is arranged near the dust collection position of the dust collecting member 21. The rapping member 40 and the dust collecting member 21 can be arranged on both sides of the mounting frame 22 respectively, and a part of the rapping member 40 can be selectively opposite to the dust collecting member 21 in the extension direction of the dust collecting member 21 to achieve the knocking of the dust collecting member 21.
[0057] According to some embodiments of the present application, the vibrating hammer 42 is suitable for striking the end of the dust collecting member 21; the dust collecting assembly 20 further includes an exciting member 26, which is connected to the end of the dust collecting member 21 and protrudes from the mounting frame 22, and the vibrating hammer 42 can selectively strike the exciting member 26 to drive the dust collecting member 21 to vibrate. Figure 5As shown, in the present embodiment, the vibrator 42 intermittently strikes the excitation member 26. When the vibrator 42 strikes the excitation member 26, the excitation member 26 is connected to the end of the dust collecting member 21 to transmit the vibration to the dust collecting member 21. It should be noted that the connection between the vibrator 42 and the excitation member 26 is not limited to a fixed connection, and can also be constructed as a selectable connection or a movable connection, etc. In some embodiments, the excitation member 26 is movably arranged on the mounting frame 22 and can be selectively connected to the end of the dust collecting member 21. Specifically, the excitation member 26 is suitable for moving relative to the mounting frame 22 along the extension direction of the dust collecting member 21. When the vibrator 42 strikes the excitation member 26, the excitation member 26 is forced to move. When it moves to contact with the sliding member 24, it abuts against the sliding member 24 due to the action of the inertial force and is connected to the dust collecting member 21 through the sliding member 24, thereby realizing vibration transmission. Further, one end of the excitation member 26 protrudes from the mounting frame 22 to accommodate the vibrator 42 striking it.
[0058] According to some embodiments of the present application, the dust collecting assembly 20 further includes a buffer 27, which is disposed between the sliding member 24 and the dust collecting member 21, and the buffer 27 is rotatably connected to the sliding member 24. In this embodiment, the buffer 27 can be provided to reduce the impact of the dust collecting member 21 on the mounting frame 22 when it vibrates, thereby reducing the impact on other dust collecting members 21 located at the dust collecting position, and at the same time, the dust collecting member 21 located at the dust collecting position can remain relatively stable under the action of the buffer 27. Since the buffer 27 is rotatably connected to the sliding member 24, the dust collecting member 21 can shake within a certain range relative to the mounting frame 22, thereby achieving the dust collecting member 21 vibrating relative to the mounting frame 22 to shake off dust. In some embodiments, the rotating shafts of the buffer 27 and the sliding member 24 can be constructed to be parallel to the extension direction of the dust collecting member 21, and the buffer 27 and the dust collecting member 21 can be connected by threads. Furthermore, buffer members 27 are provided at both ends of each dust collecting member 21 , and the dust collecting member 21 is connected to the sliding member 24 through the buffer member 27 , and further movably connected to the mounting frame 22 .
[0059] The electrostatic precipitator of the present application can be applied between the desulfurization equipment and the chimney. In specific application, the flue gas velocity in the flue is 0.5m / s to 2m / s, the electric field length of the electrostatic precipitator is 6m, the electric field voltage at the positive and negative ends is 3kv, and the length, width and height of the shell 10 are 7m, 2m and 2m, respectively. Seven groups of dust collecting components 20 and seven groups of discharge components 30 are arranged inside the dust collecting channel, and each group of dust collecting components 20 includes 16 dust collecting components 21. Each group of discharge components 30 includes 15 discharge components 30.
[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.
[0061] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.
[0062] In the description of the present invention, "plurality" means two or more.
[0063] In the description of the present invention, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.
[0064] In the description of the present invention, “on”, “over” and “above” a first feature from a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.
[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0066] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. An electrostatic precipitator for reducing secondary dust, characterized in that: include: A housing having a dust collecting passage formed therein; A dust collecting assembly, the dust collecting assembly is arranged in the dust collecting channel and is consistent with the extension direction of the dust collecting channel, and the dust collecting assembly is structured as a plurality of dust collecting assemblies arranged in parallel in the dust collecting channel; the dust collecting assembly includes: A mounting frame, the mounting frame being arranged in the dust collecting channel; A dust collecting member, wherein the dust collecting member is structured in a plurality, and the plurality of dust collecting members are cyclically movably arranged on the mounting frame, so as to be suitable for any one of the dust collecting members to switch between a dust falling position and a dust collecting position, and the dust collecting assembly is suitable for forming an electric field in the dust collecting channel so as to be suitable for the dust collecting member to absorb dust; A dust cleaning device is arranged in the dust collecting channel and is suitable for cleaning the dust collecting part moved to the dust falling position.
2. The electrostatic precipitator for reducing secondary dust according to claim 1, characterized in that: The dust collecting piece is suitable for moving relative to the mounting frame along an annular path perpendicular to the extension direction of the dust collecting channel. The dust collecting piece reaches a dust collecting position when it moves to the lowest point on the annular path. The dust collecting piece switches to a dust collecting position after leaving the dust collecting position.
3. The electrostatic precipitator for reducing secondary dust according to claim 1, characterized in that: The dust collection assembly also includes: A guide rail, the guide rail is arranged on the mounting frame, and the guide rail is configured as an annular guide rail; A sliding member, wherein the sliding member is movably arranged on the guide rail, and the sliding member is constructed in multiples, any one of the dust collecting members is connected to at least one of the sliding members so as to be suitable for cyclically moving along the guide rail with the sliding member, and the dust collecting member reaches the dust falling position when it moves to the bottom of the guide rail.
4. The electrostatic precipitator for reducing secondary dust according to claim 3, characterized in that: The dust collection component also includes: A driving member, wherein the driving member is disposed on the mounting frame; A transmission chain is connected to the plurality of sliding members and is linked to the output end of the driving member to drive each sliding member to move along the guide rail.
5. The electrostatic precipitator for reducing secondary dust according to claim 1, characterized in that: The dust collecting member is configured to be bent and extended in the extending direction of the dust collecting channel, or the dust collecting member is configured to be a dust collecting plate extending along the extending direction of the dust collecting channel.
6. The electrostatic precipitator for reducing secondary dust according to claim 5, characterized in that: The dust collecting member comprises: The dust collecting rod is constructed to be a plurality of dust collecting rods arranged along the extension direction of the dust collecting member, the plurality of dust collecting rods are connected end to end in sequence, and each of the dust collecting rods is inclined relative to the extension direction of the dust collecting channel, and the inclination directions of two adjacent dust collecting rods are opposite.
7. The electrostatic precipitator for reducing secondary dust according to claim 1, characterized in that: The dust cleaning device comprises: A rapping member, the rapping member is arranged in the housing, and the rapping member is suitable for selectively striking the dust collecting member located at the dust falling position; and / or A dust cleaning member, the dust cleaning member is arranged in the housing, and the dust collecting member contacts the dust cleaning member when passing through the dust falling position so as to be suitable for cleaning the dust on the surface of the dust collecting member; A collecting member is arranged below the dust falling position to collect dust.
8. The electrostatic precipitator for reducing secondary dust according to claim 7, characterized in that: The rapping member comprises: A rotating rod, the rotating rod is rotatably disposed in the housing; A vibrating hammer is arranged on the rotating rod, and the vibrating hammer is suitable for rotating with the rotating rod to selectively strike the dust collecting member located at the dust falling position.
9. The electrostatic precipitator for reducing secondary dust according to claim 8, characterized in that: The vibrating hammer is suitable for striking the end of the dust collecting member; The dust collection assembly also includes: An exciting member is connected to the end of the dust collecting member and protrudes from the mounting frame, and the vibrating hammer can selectively strike the exciting member to drive the dust collecting member to vibrate.
10. The electrostatic precipitator for reducing secondary dust according to claim 3, characterized in that: The dust collection assembly also includes: A buffer component is arranged between the sliding component and the dust collecting component, and the buffer component is rotatably connected to the sliding component.