Dust collection electrode, electric dust remover and electric dust removal system
By designing dust-catching wind trench and dust-catching mechanism in the dust collector of the electro-dust collector, the problems of dust breakage and secondary dust during the vibration and cleaning process are solved, and the dust removal effect is improved.
Patent Information
- Application Number
- CN202420728926.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-09
AI Technical Summary
During the vibration and cleaning process of existing electro-dust collectors, the dust is easily broken and raised again, resulting in secondary dust and reducing the dust removal effect.
A dust collecting electrode is designed, including a plurality of plate rows arranged at intervals along the airflow direction and a dust-catching mechanism that corresponds to the plate row one by one. The tail of the plate row has a dust-catching and wind-proof groove. The range of the dust-catching mechanism is greater than the range of the dust-catching and wind-proof groove to capture secondary dust.
By expanding the dust capture area, reducing secondary dust, improving the dust removal effect.
Smart Images
Figure CN222678363U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of dust removal, and in particular to a dust collecting electrode, an electrostatic precipitator and an electrostatic precipitator system. Background Art
[0002] In the chemical, metallurgical, petroleum, electric power and other industries, due to the need for energy conservation, emission reduction and environmental protection, it is necessary to use an electrostatic precipitator to remove dust from dust-containing gases to achieve separation between dust and gas. For an electrostatic precipitator, its working principle is to use a high-voltage electric field to charge the dust particles in the flue gas, and to efficiently separate the dust particles and collect them on the dust collecting plate.
[0003] In order to improve the dust removal efficiency, the existing electrostatic precipitator needs to beat the dust collecting plate in the flue gas flow direction so that the dust on the dust collecting plate can fall into the ash hopper in blocks or clumps.
[0004] Because sufficient vibration force is required for vibration cleaning, the force on different parts of the dust collecting plate is uneven, and there is partial breakage during the separation process of flaky dust. The broken dust and fine dust on the edge will return to the flue gas flow due to the vibration force to form secondary dust, which reduces the dust removal effect. Utility Model Content
[0005] In view of this, the purpose of the utility model is to provide a dust collecting electrode, an electrostatic precipitator and an electrostatic precipitator system to reduce secondary dust during the vibration process, thereby improving the dust removal effect.
[0006] In the first aspect, an embodiment of the utility model provides a dust collecting electrode, which includes: a plurality of pole plate rows arranged at intervals along a direction perpendicular to the airflow and a plurality of dust collecting mechanisms corresponding one by one to the plurality of pole plate rows; wherein, the tail of the pole plate row has a dust catching and windproof groove, the dust catching and windproof groove is connected to the dust catching mechanism, and the effective range of the dust catching mechanism is larger than the effective range of the dust catching and windproof groove.
[0007] In combination with the first aspect, the electrode plate row includes a plurality of electrode plates connected in sequence along the airflow direction, and the electrode plate located at the tail of the electrode plate row is connected to the dust collecting mechanism.
[0008] In combination with the first aspect, both ends of the electrode plate are provided with dust-collecting and wind-proof grooves.
[0009] In combination with the first aspect, the two dust-collecting and wind-proof grooves corresponding to the pole plates are on the same side.
[0010] In combination with the first aspect, the two dust-collecting and wind-proof grooves corresponding to the electrode plate are respectively located on both sides of the electrode plate.
[0011] In combination with the first aspect, the dust collecting mechanism is a symmetrical structure; the dust collecting mechanism includes: a first plate body, a second plate body, and a third plate body connected in sequence, and the second plate body is coaxial with the dust collecting and windproof groove.
[0012] In combination with the first aspect, the angle between the first plate body and the second plate body is a right angle or an obtuse angle.
[0013] In combination with the first aspect, a vent is provided on the dust collecting mechanism.
[0014] In a second aspect, the present application provides an electrostatic precipitator, comprising a dust collecting electrode and a rapping mechanism as described above, wherein the rapping mechanism is connected to the dust collecting electrode.
[0015] In a third aspect, the present application provides an electrostatic precipitator system, comprising the electrostatic precipitator as described above.
[0016] The embodiments of the present invention bring the following beneficial effects:
[0017] Each pole plate row in the dust collecting pole provided in the present application has a dust catching and windproof groove, and the tail of each pole plate row is connected to a dust collecting mechanism. Since the action range of the dust collecting mechanism is larger than the action range of the dust catching and windproof groove, when the dust collecting pole is subjected to the vibration force to cause secondary dust, the dust that cannot be captured by the dust catching and windproof groove can be captured, so as to expand the dust capturing area and thus improve the dust removal effect.
[0018] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures specifically pointed out in the description, claims and drawings.
[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.
[0021] Figure 1 A schematic diagram of the dust collecting electrode structure provided for this application;
[0022] Figure 2 Schematic diagram of the position relationship between the electrode plate, dust collection mechanism, and dust collection and windproof groove provided in this application;
[0023] Figure 3 A schematic diagram of the connection structure between the dust collecting electrode and the vibration mechanism provided in this application;
[0024] Figure 4A schematic diagram of the position relationship between another electrode plate, dust collecting mechanism, and dust collecting and windproof groove provided in this application;
[0025] Figure 5 Schematic diagram of the electrode plate arrangement structure in the dust collecting electrode provided in this application.
[0026] The reference numerals are as follows:
[0027] 1-plate row, 2-dust collecting mechanism, 21-first plate body, 22-second plate body, 23-third plate body, 24-air vent, 3-plate, 31-dust collecting and windproof groove, 4-rapping mechanism. DETAILED DESCRIPTION
[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.
[0029] To facilitate understanding of this embodiment, the following is a brief introduction to the technologies involved in this application.
[0030] The plate row is the core component of the electrostatic precipitator, which consists of upper suspension, plate, rapping rod and other parts. The plate is a thin steel plate rolled on a special rolling mill.
[0031] The electrode plate is the main component of the electrostatic precipitator. Its function is to capture charged dust. During the impact vibration, the dust attached to the surface of the electrode plate separates from the plate surface in pieces or clumps and falls into the lower ash hopper to achieve the dust removal purpose of the electrostatic precipitator.
[0032] After introducing the technical terms involved in this application, the application scenarios and design concepts of the embodiments of this application are briefly introduced.
[0033] Because sufficient vibration force is required for vibration cleaning, the force on different parts of the dust collecting plate is uneven, and there is partial breakage during the separation process of flaky dust. The broken dust and fine dust on the edge will return to the flue gas flow due to the vibration force to form secondary dust, which reduces the dust removal effect.
[0034] Based on this, an embodiment of the present application provides a dust collecting electrode, a dust collector and a dust removal system.
[0035] Example 1
[0036] The present application provides a dust collecting electrode, which includes: a dust collecting electrode along a vertical airflow (combined with Figure 1 The arrow in the middle indicates the direction of airflow) and multiple electrode rows 1 (combined with Figure 1As shown), the pole plate row 1 is connected to a dust collecting mechanism 2, wherein the tail of the pole plate row 1 has a dust collecting and windproof groove 31, the dust collecting and windproof groove 31 is connected to the dust collecting mechanism 2, and the effective range of the dust collecting mechanism 2 is larger than the effective range of the dust collecting and windproof groove 31.
[0037] The dust collecting electrode provided in the present application is composed of a plurality of pole plate rows 1 arranged at intervals, each pole plate row 1 is connected to a dust collecting mechanism 2, and the pole plate row 1 itself has a dust collecting and windproof groove 31, and the effective area of the dust collecting mechanism 2 is larger than the effective area of the dust collecting and windproof groove 31. In this way, when the flaky dust is broken and the edge dust is raised again during the process of the dust collecting electrode being acted upon by the vibration force, the dust in the flue gas is captured by the dust collecting mechanism 2 with a larger effective range to reduce secondary dust, thereby improving the dust removal effect.
[0038] In actual application, each electrode row 1 in the dust collecting electrode is connected to a controlled high-voltage power supply. The high-voltage power supply is operated to make the electrode row 1 positively charged, and form an electric field with the discharge electrode, so that the particles in the flue gas flow are negatively charged. The electric field force is used to pull the negatively charged particles toward the electrode row 1, thereby realizing dust collection in the flue gas. After a period of accumulation, the dust on the electrode row 1 accumulates to a certain thickness and needs to be cleaned. Usually, the electrode row 1 is acted on by outputting a vibrating force, so that the accumulated dust is forced to fall in the form of flakes or clumps by the vibrating force, and enters the ash hopper or ash collector under the action of gravity.
[0039] During the vibration and dust cleaning process, if the vibration force is too small, it is difficult to clean the accumulated dust; if the vibration force is too large, the dust that has become flakes, blocks or clumps will be broken by the strong vibration, which will cause the broken dust to return to the flue gas flow again to cause secondary dust, affecting the dust removal effect. The dust collecting electrode provided in the present application is connected to the tail end with a dust catching mechanism 2 for catching the secondary dust, thereby improving the dust removal efficiency.
[0040] It can be understood that the width of the dust collecting mechanism 2 should be smaller than the distance between two adjacent electrode plate rows 1. In this embodiment, the dust collecting mechanism 2 is riveted to the dust collecting and windproof groove 31.
[0041] In combination with the first aspect, the electrode row 1 includes a plurality of electrode plates 3 connected in sequence along the airflow direction (ie, the height direction), and the electrode plate 3 located at the tail of the electrode row 1 is connected to the dust collecting mechanism 2 .
[0042] In combination with the first aspect, both ends of each pole plate 3 are provided with dust-collecting and wind-proof grooves 31. Figure 5 As shown, the electrode row 1 includes two electrode plates 3. In actual use, the number and size of the electrode plates 3 can be selected according to usage requirements.
[0043] As an implementable manner, for one electrode row 1, the number of dust collecting mechanisms 2 connected to the electrode row 1 is 1. At this time, the dust collecting mechanism 2 is connected to the electrode plate 3 at the bottom of the electrode row 1, and specifically, is riveted to the dust collecting and windproof groove 31 at the bottom of the electrode plate 3, so that secondary dust can be captured at the bottom.
[0044] As another feasible method, for one electrode row 1, the number of dust catching mechanisms 2 connected to the electrode row 1 is not 1. In this case, one dust catching mechanism 2 is connected to the bottommost electrode plate 3 in the electrode row 1, and at least one other dust catching mechanism 2 corresponds to other electrode plates 3, respectively, and can capture secondary dust at different positions in the airflow direction. Alternatively, one dust catching mechanism 2 is connected to the bottommost electrode plate 3 in the electrode row 1, another dust catching mechanism 2 is riveted to the dust catching and windproof groove 31 on the top of the electrode plate 3, and the remaining dust catching mechanisms 2 are connected to other electrode plates 3.
[0045] It is understandable that the layout and connection can be carried out according to actual use requirements, and it is only necessary to ensure that the dust-collecting and wind-proof groove 31 at the tail of the bottommost electrode 3 in the electrode row 1 is connected to a dust-collecting mechanism 2.
[0046] Combination Figure 2 As shown, the pole plate row 1 includes two pole plates 3, and both ends of each pole plate 3 can have dust-catching and wind-proof grooves. The number of dust-catching mechanisms 2 connected to the pole plate row 1 is 1. At this time, the dust-catching mechanism 2 is fixedly connected to the dust-catching and wind-proof groove 31 at the bottom by rivets. The dust-catching and wind-proof groove 31 can capture secondary dust caused by dust crushing and edge dust being raised again during the vibration and cleaning process within its range of action. Since the range of action of the dust-catching mechanism 2 is larger than that of the dust-catching and wind-proof grooves 31, the dust-catching mechanism 2 captures secondary dust in the flue gas within the space that the dust-catching and wind-proof grooves 31 cannot cover, thereby improving the dust removal efficiency.
[0047] In combination with the first aspect, the dust-collecting and wind-proof groove 31 at the top and the dust-collecting and wind-proof groove 31 at the bottom are located on the same side of the pole plate 3 .
[0048] The pole plate 3 can be a C-type, Z-type, BE-type, etc. (or other forms) structure. Take the pole plate 3 as a C-type structure as an example, that is, two dust-catching and windproof grooves 31 are connected to the first side of the central axis of the pole plate 3, and there is no dust-catching and windproof groove 31 on the other side. At this time, under the action of the vibration force of the pole plate row 1 and the action of the flue gas flow, the flaky dust is broken and returns to the flue gas flow again, and moves within the area of 50mm. One side of the C-type pole plate 3 does not have a dust-catching and windproof groove 31 and cannot capture the secondary dust. The dust on this side directly escapes into the outlet horn (i.e., the flue), affecting the dust removal effect. The other side has a dust-catching and windproof groove 31, which can capture a small part of the secondary dust entering the C-type structure, while most of the secondary dust moves and escapes near the outside of the dust-catching and windproof groove 31 on the pole plate 3, and is captured by the dust-catching mechanism 2 with a larger range of action.
[0049] In the present application, the dust collecting mechanism 2 is fixedly connected to the dust collecting and windproof groove 31 by rivets. Since the effective range of the dust collecting mechanism 2 is larger than the effective range of the dust collecting and windproof groove 31, the dust collecting mechanism 2 captures secondary dust in the flue gas within the space that the dust collecting and windproof groove 31 cannot cover, thereby improving the dust removal efficiency.
[0050] In combination with the first aspect, the dust-collecting and wind-proof groove 31 at the top and the dust-collecting and wind-proof groove 31 at the bottom are located on both sides of the pole plate 3 .
[0051] In this way, the pole plate 3 is a Z-shaped structure, and the two dust-catching and windproof grooves 31 of the pole plate 3 are in opposite directions. Compared with the pole plate 3 with a C-shaped structure, when the dust collecting pole is vibrated, the secondary dust can be captured from the space covered by the dust-catching and windproof grooves 31 on both sides, but the secondary dust beyond the space covered by the pole plate 3 cannot be captured. In the present application, the dust-catching mechanism 2 is fixedly connected to the dust-catching and windproof groove 31 by rivets, the dust-catching mechanism 2 is coaxial with the dust-catching and windproof groove 31, and the action range of the dust-catching mechanism 2 is larger than the action range of the dust-catching and windproof groove 31, so the dust-catching mechanism 2 captures the secondary dust in the flue gas within the space that the dust-catching and windproof groove 31 fails to cover, thereby improving the dust removal efficiency.
[0052] In combination with the first aspect, the dust collecting mechanism 2 is a symmetrical structure; the dust collecting mechanism 2 includes: a first plate body 21, a second plate body 22, and a third plate body 23 (combined with Figure 4 As shown), the second plate body 22 is coaxial with the electrode row 1.
[0053] Combination Figure 4 As shown, the second plate body 22 is disposed at the bottom of the electrode row 1 and is riveted to the dust-collecting and wind-proof groove 31 , and the first plate body 21 and the third plate body 23 are integrally connected at both ends of the second plate body 22 .
[0054] In combination with the first aspect, the angle between the first plate body 21 and the second plate body 22 is a right angle or an obtuse angle. Figure 2 As shown, when the angle between the first plate 21 and the second plate 22 is a right angle, since the dust collecting mechanism 2 is a symmetrical structure, at this time, the angle between the third plate 23 and the second plate 22 is also a right angle. At this time, the dust collecting mechanism 2 is a C-shaped structure, and its effective range is the spatial range radiated by the distance between the first plate 21 and the third plate 23.
[0055] As another practicable manner, the angle between the first plate body 21 and the second plate body 22 is an obtuse angle. Figure 4 As shown, since the dust collecting mechanism 2 is a symmetrical structure, the angle between the third plate 23 and the second plate 22 is also an obtuse angle. At this time, the action range of the dust collecting mechanism 2 is the space range radiated by the longest distance between the first plate 21 and the third plate 23. Compared with the case where the angle is a right angle, the top ends of the first plate 21 and the third plate 23 of the dust collecting mechanism 2 are open outward, and the bottom ends are inclined inward and connected to the second plate 22. After the dust in the covered space is captured, it slides down and is collected along the inclined surfaces of the first plate 21 and the third plate 23 under the action of gravity.
[0056] In combination with the first aspect, the dust collecting mechanism 2 is provided with an air vent 24 (combined with Figure 4 As shown), to reduce the smoke resistance loss.
[0057] It is worth noting that the size of the dust collecting mechanism 2 should reduce the pressure loss as much as possible without affecting the discharge distance, and the specific size can be set according to the use requirements, working conditions and electric field conditions.
[0058] In this embodiment, the electrode row 1 is composed of a plurality of electrode plates 3, so that the electrode row 1 can be divided into sections for easy disassembly, installation, and transportation. The specific number of electrode plates 3 can be selected according to usage requirements and is not limited here.
[0059] In a second aspect, the present application provides an electrostatic precipitator, which includes the above-mentioned dust collecting electrode and a rapping mechanism 4, the rapping mechanism 4 is connected to the dust collecting electrode (combined with Figure 3 As shown), the rapping mechanism 4 is used to output a rapping force to act on the dust collecting electrode to force the dust accumulated on the dust collecting electrode to loosen and fall into the ash hopper.
[0060] It can be understood that the vibration mechanism 4 can be composed of an automatically controlled transmission mechanism and a vibration hammer fixedly connected to the transmission end of the transmission mechanism. The driving force is output through automatic control, and the vibration hammer is driven by the transmission mechanism to hammer the dust collecting electrode. This is a structure that is commonly used in the field of electrostatic precipitators and will not be elaborated or limited here.
[0061] It is understandable that timed or periodic rapping can also be achieved through automatic control, which will not be elaborated here.
[0062] In a third aspect, the present application also provides an electrostatic precipitator system, which includes the electrostatic precipitator as above.
[0063] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system and device described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.
[0064] In addition, in the description of the embodiments of the present application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.
[0065] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, and other media that can store program codes.
[0066] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0067] Finally, it should be noted that the above embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above embodiments, those skilled in the art should understand that any person skilled in the art who is familiar with the technical field can still modify the technical solutions recorded in the above embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.
Claims
1. A dust collecting electrode, characterized in that: The dust collecting electrode includes: a plurality of pole plate rows arranged at intervals along the direction perpendicular to the airflow and a plurality of dust collecting mechanisms corresponding one by one to the plurality of pole plate rows; wherein, the tail of the pole plate row is provided with a dust collecting and windproof groove, the dust collecting and windproof groove is connected to the dust collecting mechanism, and the effective range of the dust collecting mechanism is larger than the effective range of the dust collecting and windproof groove.
2. The dust collecting electrode according to claim 1, characterized in that: The electrode plate row includes a plurality of electrode plates connected in sequence along the airflow direction, and the electrode plate located at the tail of the electrode plate row is connected to the dust collecting mechanism.
3. The dust collecting electrode according to claim 2, characterized in that: Both ends of the pole plate are provided with the dust-collecting and wind-proof grooves.
4. The dust collecting electrode according to claim 3, characterized in that: The two dust-collecting and wind-proof grooves corresponding to the electrode plates are on the same side.
5. The dust collecting electrode according to claim 3, characterized in that: The two dust-collecting and wind-proof grooves corresponding to the pole plate are respectively located on both sides of the pole plate.
6. The dust collecting electrode according to claim 1, characterized in that: The dust catching mechanism is a symmetrical structure; the dust catching mechanism comprises: a first plate body, a second plate body, and a third plate body connected in sequence, and the second plate body is coaxial with the dust catching and windproof groove.
7. The dust collecting electrode according to claim 6, characterized in that: The angle between the first plate body and the second plate body is a right angle or an obtuse angle.
8. The dust collecting electrode according to claim 1, characterized in that: The dust collecting mechanism is provided with an air vent.
9. An electrostatic precipitator, characterized in that: It comprises a dust collecting electrode and a rapping mechanism as described in any one of claims 1 to 8, wherein the rapping mechanism is connected to the dust collecting electrode.
10. An electrostatic precipitator system, characterized in that: Comprising the electric precipitator as described in claim 9.