Electrostatic precipitator anode system

Abstract

The application discloses a novel electric dust collector anode system and relates to the technical field of electric dust collectors.The technical problem that the anode plate is prone to wear and tear during the rapping process and the displacement is small during the rapping process, which affects the dust cleaning effect, is solved in the prior art.The anode system comprises anode plate hangers, rapping rods and a plurality of anode plates, the plurality of anode plates are distributed in parallel between the anode plate hangers and the rapping rods, the position, away from the anode plate hangers, of the anode plates is provided with connecting plates which can extend into the rapping rods, the connecting plates are inserted into the rapping rods, a plurality of stop blocks for impacting the anode plates are arranged in the rapping rods, double-point suspension assemblies are arranged between the rapping rods and two connecting plates, and single-point suspension assemblies are arranged between the anode plates and the anode plate hangers.The anode system has the advantages of simple structure, convenient installation, good rapping and dust cleaning effect, difficulty in wear and tear and long service life.

Description

Technical Field

[0001] This invention relates to the field of electrostatic precipitator technology, and more specifically to the anode system of an electrostatic precipitator. Background Technology

[0002] Electrostatic precipitators (ESPs) are essential equipment in thermal power plants, building materials industries, metallurgical industries, and various industrial kilns. Their function is to remove particulate matter from boiler flue gas, significantly reducing the amount of dust emitted into the atmosphere. This is a crucial environmental protection device for improving air quality and reducing pollution. ESPs are widely used in power, building materials, metallurgy, non-ferrous metals, and chemical industries due to their advantages such as large flue gas handling capacity, high dust removal efficiency, low equipment resistance, low energy consumption, ability to handle high-temperature dust, low operating costs, and convenient management. The two most critical systems in an ESP are the anode and cathode systems. The anode system is grounded, while the cathode system is connected to a high-voltage DC power supply. By applying a certain voltage to the barbed wires of the cathode system, a corona discharge is generated, releasing a large number of electrons and ions, creating an electrostatic field between the anode and cathode systems sufficient to ionize the gas. During operation, dust-laden gas enters through the dust collector inlet. Through the electrostatic field, a large number of ions and electrons charge the dust particles. Under the action of the electric field force, the charged dust particles move towards the anode and cathode and are deposited on the anode and cathode, thereby achieving the purpose of separating dust and gas. Then, the ash deposited on the electrode plates and electrode lines is collected by the rapping device, and the clean flue gas after treatment is discharged through the outlet.

[0003] Currently, the anode system of domestic electrostatic precipitators typically consists of components such as anode plate hangers, anode plates, rapping rods, and rapping devices (e.g., ...). Figure 1 (As shown). Each anode plate is suspended below the hanger by two bolts. A vibrating rod is fixed to the lower part of the anode plate. The vibrating system strikes the vibrating rod, and the vibrating force is transmitted to the entire row of anode plates through the vibrating rod, thereby achieving the effect of cleaning the anode plates.

[0004] The existing anode plate fixing method in electrostatic precipitator anode systems involves fixing the anode plate directly to the bottom of the anode plate suspension rod using two bolts that pass through two holes at the top of the anode plate. The vibrating rod is then directly suspended from the bottom of the anode plate using two bolts. This anode system has the following disadvantages:

[0005] 1. During the operation of the anode rapping system, since the four holes on the top and bottom of the anode plate are fixed with bolts, each time the rapping hammer strikes the rapping rod, the four bolts fixing the top and bottom of the anode plate will impact and wear against the corresponding four holes. Because the anode plate is relatively thin, generally around 0.6-1.2mm, after a period of use, the original circular holes of the anode plate are easily stretched into elongated holes by the bolts due to wear and impact, which may even lead to the serious consequence of the anode plate falling off.

[0006] 2. Because the four holes on the top and bottom of the anode plate are fixed by bolts, the displacement of the anode plate is very small after the vibrating rod is hit by the vibrating hammer. Therefore, the vibration force is limited and the dust removal effect is greatly reduced. Summary of the Invention

[0007] The purpose of this invention is to provide an anode system for an electrostatic precipitator, which solves the problem in the prior art that the anode plate is fixed by bolts at the top and bottom, which not only causes the anode plate to wear easily during the rapping process, but also results in very small displacement during the rapping process, affecting the dust removal effect.

[0008] The objective of this invention can be achieved through the following technical solutions:

[0009] An electrostatic precipitator anode system includes an anode plate hanger, a vibrating rod, and several anode plates. The anode plates are arranged in parallel between the anode plate hanger and the vibrating rod. A connecting plate that extends into the vibrating rod is installed on each anode plate away from the anode plate hanger. The connecting plate is inserted into the vibrating rod, and multiple stops for impacting the anode plates are installed inside the vibrating rod. A double-point suspension assembly is installed between the vibrating rod and two of the connecting plates, and a single-point suspension assembly is installed between the anode plates and the anode plate hanger. When the vibrating rod is struck by the vibrating system, the anode plates are deflected by the single-point suspension assembly.

[0010] As a further aspect of the present invention: the anode plate has symmetrical notches at one corner near the end of the anode plate hanger, and a protrusion that can extend into the anode plate hanger is formed between the two notches, and a first suspension hole is formed at the corner near the end of the protrusion.

[0011] As a further aspect of the present invention: the single-point suspension assembly includes a protective member and a first connecting member. The protective member is installed at the corner of the protrusion and is used to cover the edge of the opening of the first suspension hole. The first connecting member passes through the anode plate hanger and extends outward. The first connecting member passes through the first suspension hole and the protective member and is used to suspend the protrusion of the anode plate on the anode plate hanger.

[0012] As a further aspect of the present invention: the connecting plate is composed of a connecting part and a plug-in part, the plug-in part extends into the vibrating rod, the connecting part extends to the outside of the vibrating rod, the connecting part is fitted with the center of the recessed part near the bottom end of the anode plate, and a fixing member is installed between the connecting part and the recessed part.

[0013] As a further aspect of the present invention: the dual-point suspension assembly includes two second connectors that are disposed through the vibrating rod, wherein the two connecting plates have second suspension holes through which the second connectors pass, and the second connectors are used to suspend the vibrating rod on the corresponding connecting plate.

[0014] As a further aspect of the present invention: the vibrating rod includes two horizontal plates and a connecting block located between the two horizontal plates. The connecting block is respectively attached to the opposing sidewalls of the two horizontal plates near their ends. A third connecting member is provided through the two horizontal plates, corresponding to the connecting block and the stop block respectively. The third connecting member is used to fix the connecting block and the stop block between the two horizontal plates.

[0015] As a further aspect of the present invention: the number of the first suspension holes is preferably two, the two first suspension holes are symmetrically distributed about the center line of the protrusion, and only one of the first suspension holes is used to suspend the anode plate.

[0016] As a further aspect of the present invention: the insertion portions of two adjacent connecting plates are respectively attached to the opposing sidewalls of the two horizontal plates.

[0017] As a further aspect of the present invention: the number of the second suspension holes is preferably two, and the two second suspension holes are symmetrically distributed about the center line of the insertion part.

[0018] As a further aspect of the present invention: the protective component includes a tubular rivet embedded in the first suspension hole or a flat washer welded to one or both sides of the first suspension hole.

[0019] The beneficial effects of this invention are:

[0020] 1. In this invention, the single-point suspension assembly not only facilitates single-point fixation between the anode plate and the anode plate hanger, ensuring that the anode plate can rotate flexibly when struck, achieving a good dust removal effect, but also protects the suspension point of the anode plate, making the anode plate less prone to wear during vibration, which helps to improve the service life of the anode plate.

[0021] 2. In this invention, the double-point suspension assembly ensures that only two points are fixed when the bottom of the entire row of anode plates is connected to the vibrating rod, instead of fixing all of them. This makes installation convenient and efficient. Combined with several evenly distributed stops inside the vibrating rod, it ensures that when the vibrating rod is struck by the vibrating system, the vibrating rod can transmit the vibrating force to each anode plate, which is beneficial to improving the dust removal effect of the anode plates.

[0022] 3. In this invention, the connecting plate is connected to the end of the anode plate near the vibrating rod. The connecting plate is inserted into the vibrating rod, so that each anode plate can expand freely after being heated, which can greatly reduce the accident of severe electric field flashover caused by the thermal expansion and bending deformation of the anode plate. Attached Figure Description

[0023] The invention will now be further described with reference to the accompanying drawings.

[0024] Figure 1 This is a schematic diagram of the anode system of an electrostatic precipitator in the prior art;

[0025] Figure 2 This is a schematic diagram of the anode system of the electrostatic precipitator of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the connection between the anode plate and the anode plate hanger in the anode system of the electrostatic precipitator of the present invention;

[0027] Figure 4 This is a schematic diagram of the connection between the anode plate and the vibrating rod in the anode system of the electrostatic precipitator of the present invention;

[0028] Figure 5 This is a schematic diagram of the connection between the connecting plate and the vibrating rod in the anode system of the electrostatic precipitator of the present invention;

[0029] Figure 6 This is a schematic diagram of the connection between the connecting plate and the anode plate in the anode system of the electrostatic precipitator of the present invention;

[0030] Figure 7 This is a perspective view of the connecting plate in the anode system of the electrostatic precipitator of the present invention.

[0031] In the diagram: 1. Anode plate hanger; 2. Vibrating rod; 21. Horizontal plate; 22. Connecting block; 3. Anode plate; 31. Notch; 32. Protrusion; 33. First suspension hole; 34. Recess; 4. Connecting plate; 41. Connecting part; 42. Insertion part; 421. Second suspension hole; 5. Stop block; 6. Protective component; 7. First connecting component; 8. Fixing component; 9. Second connecting component; 10. Third connecting component. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figure 2-7As shown, the present invention is an anode system for an electrostatic precipitator, including an anode plate suspension rod 1, a vibrating rod 2, and several anode plates 3. The several anode plates 3 are distributed in parallel between the anode plate suspension rod 1 and the vibrating rod 2. A connecting plate 4 that can extend into the vibrating rod 2 is installed at a position of the anode plate 3 away from the anode plate suspension rod 1. The connecting plate 4 is inserted into the vibrating rod 2, and multiple blocks 5 for impacting the anode plates 3 are installed in the vibrating rod 2. A double-point suspension assembly is installed between the vibrating rod 2 and two of the connecting plates 4, and a single-point suspension assembly is installed between the anode plates 3 and the anode plate suspension rod 1. When the vibrating rod 2 is struck by the vibrating system, the anode plates 3 are deflected by the single-point suspension assembly.

[0034] It should be noted that during use, several anode plates 3 are fixed to the anode plate hanger 1 one by one using the single-point suspension assembly, so that the anode plates 3 can rotate flexibly, improving the dust removal effect during the rapping process. A connecting plate 4 that can be inserted into the rapping rod 2 is installed at the bottom of the anode plate 3. The rapping rod 2 is fixed to the connecting plate 4 of two anode plates 3 in the whole row of anode plates 3 using the double-point suspension assembly. Each anode plate 3 is suspended at only one point with the anode plate hanger 1, and the rapping rod 2 is suspended at only two points with the whole row of anode plates 3. The installation is convenient and efficient.

[0035] In this embodiment, the portion of the connecting plate 4 extending into the vibrating rod 2 is located between two adjacent blocks 5, so that each block 5 corresponds to an anode plate 3. This allows the vibrating rod 2 to transmit the vibrating force to each anode plate 3 when it is struck by the vibrating system, thereby improving the dust removal effect of the anode plate 3.

[0036] like Figure 3 As shown, the anode plate 3 has symmetrical notches 31 at one corner near the anode plate rod 1. A protrusion 32 that can extend into the anode plate rod 1 is formed between the two notches 31. A first suspension hole 33 is provided at the corner near the end of the protrusion 32.

[0037] It should be noted that the top of the anode plate 3 has a protrusion 32 formed by symmetrically opening notches 31. This not only makes it convenient for the protrusion 32 at the top of the anode plate 3 to be inserted into the anode plate hanger 1, but also ensures that there is a certain gap between the protrusions 32 at the top of the entire row of anode plates 3 after they are suspended at a single point. This avoids the anode plates 3 from being restricted in their deflection due to the tops of the anode plates 3 sticking together. As a result, the entire row of anode plates 3 can deflect evenly and flexibly when subjected to vibration, thereby improving the dust removal effect.

[0038] like Figure 3As shown, the single-point suspension assembly includes a protective member 6 and a first connecting member 7. The protective member 6 is installed at the corner of the protrusion 32 and is used to cover the edge of the opening of the first suspension hole 33. The first connecting member 7 passes through the anode plate hanger 1 and extends outward. The first connecting member 7 is set through the first suspension hole 33 and the protective member 6. The first connecting member 7 is used to suspend the protrusion 32 of the anode plate 3 on the anode plate hanger 1.

[0039] It is understood that this application does not limit the specific structure of the first connector 7 or its installation method. The following only provides a specific structure for reference. The first connector 7 includes a first pin that passes through the first suspension hole 33 and the protective member 6. A first retaining ring that fits against the outer wall of the anode plate hanger 1 is sleeved on the first pin. A first cotter pin for limiting the position of the first retaining ring is inserted through the first pin.

[0040] It should be noted that in this embodiment, the anode plate hanger 1 has a first through hole corresponding to the first suspension hole 33 (through which the first connector 7 can pass). The first connector 7 can be a first pin or a first bolt, but it is not limited to the first pin and the first bolt. When the first connector 7 is a first bolt, it needs to be used with a matching first nut.

[0041] like Figure 4-7 As shown, the connecting plate 4 consists of a connecting part 41 and a plug-in part 42. The plug-in part 42 extends into the vibrating rod 2, and the connecting part 41 extends to the outside of the vibrating rod 2. The connecting part 41 fits against the center of the recessed part 34 near the bottom of the anode plate 3, and a fastener 8 is installed between the connecting part 41 and the recessed part 34. It is understood that this application does not limit the specific structure and quantity of the fastener 8. Only one specific structure is provided below for reference. The fastener 8 includes three equally spaced fixing rivets.

[0042] It should be noted that in this embodiment, the fastener 8 is not limited to the fastener rivet; the fastener 8 only needs to be able to fix the connecting part 41 and the recessed part 34 together.

[0043] like Figure 2 and Figure 4-5 As shown, the dual-point suspension assembly includes two second connectors 9 that are disposed through the vibrating rod 2. The two connecting plates 4 have second suspension holes 421 through which the second connectors 9 pass. The second connectors 9 are used to suspend the vibrating rod 2 on the corresponding connecting plate 4's insertion portion 42.

[0044] It is understood that this application does not limit the specific structure and installation method of the second connector 9. The following only provides a specific structure for reference. The second connector 9 includes a second pin that passes through the vibrating rod 2 and the second suspension hole 421. A second retaining ring that fits against the outer wall of the vibrating rod 2 is sleeved on the second pin. A second cotter pin for limiting the position of the second retaining ring is inserted through the second pin.

[0045] It should be noted that in this embodiment, the vibrating rod 2 has two through holes for the second connecting member 9 to pass through. The second connecting member 9 can be a second pin or a second bolt, but it is not limited to the second pin and the second bolt. When the second connecting member 9 is a second bolt, it needs to be used with a matching second nut.

[0046] like Figure 5 As shown, the vibrating rod 2 includes two horizontal plates 21 and a connecting block 22 located between the two horizontal plates 21. The connecting block 22 is respectively attached to the opposing sidewalls of the two horizontal plates 21 near their ends. A third connecting member 10 is provided through the two horizontal plates 21, corresponding to the connecting block 22 and the stop block 5 respectively. It is understood that this application does not limit the specific structure and quantity of the third connecting member 10. The following only provides a specific structure for reference. The third connecting member 10 includes a third bolt. The third connecting member 10 is used to fix the connecting block 22 and the stop block 5 between the two horizontal plates 21.

[0047] It should be noted that in this embodiment, the third connector 10 is not limited to the third bolt. It can be used to fix the two horizontal plates 21 together with the connecting block 22 and the stop block 5. When the third connector 10 is the third bolt, it needs to be used with a matching third nut.

[0048] like Figure 3 As shown, the number of first suspension holes 33 is preferably two, the two first suspension holes 33 are symmetrically distributed about the center line of the protrusion 32, and only one of the first suspension holes 33 is used to suspend the anode plate 3.

[0049] It should be noted that in this embodiment, the number of first suspension holes 33 is not limited to two, but is at least one. In order to ensure the rotation of the anode plate 3, the first suspension hole 33 needs to be set at the corner of the protrusion 32. When the first suspension hole 33 is a single one, when the anode plate 3 is suspended between the anode plate and the anode plate hanger 1, it is necessary to consider whether the first through hole on the anode plate hanger 1 corresponds to the position of the first suspension hole 33.

[0050] If the two sides of the anode plate hanger 1 are divided into front and back, when the front faces outward, the first suspension hole 33 corresponds to the position of the first through hole. However, when the back faces outward, the first suspension hole 33 does not correspond to the position of the first through hole. If the first suspension hole 33 is symmetrically set to two, then no matter whether the front or back of the anode plate hanger 1 faces outward, the first suspension hole 33 will always correspond to the position of the first through hole, which will help improve installation efficiency.

[0051] like Figure 5-6 As shown, the insertion parts 42 of two adjacent connecting plates 4 are respectively attached to the opposing sidewalls of the two horizontal plates 21.

[0052] It should be noted that when the insertion part 42 of two adjacent connecting plates 4 is attached to the opposing sidewalls of the two horizontal plates 21, the two adjacent insertion parts 42 are respectively attached to the two sides of the two adjacent recesses 34, so that the multiple connecting plates 4 are alternately distributed, thereby making it easier to limit the degree of freedom of the vibrating rod 2 in its width direction, so that the vibrating rod 2 will not cause the anode plate 3 to bend and deform due to the swaying in the width direction.

[0053] like Figure 4-5 As shown, the number of second suspension holes 421 is preferably two, and the two second suspension holes 421 are symmetrically distributed about the center line of the insertion part 42.

[0054] It should be noted that in this embodiment, the number of second suspension holes 421 is not limited to two, but is at least one. When there is only one second suspension hole 421, when the vibrating rod 2 is installed with the corresponding two plug-in parts 42, it is necessary to consider whether the second through hole on the vibrating rod 2 corresponds to the position of the second suspension hole 421 on the corresponding plug-in part 42. If the two sides of the vibrating rod 2 are divided into front and back, when the front faces outward, the second suspension hole 421 corresponds to the position of the second through hole, and when the back faces outward, the second suspension hole 421 does not correspond to the position of the first through hole. However, if the second suspension holes 421 are symmetrically set to two, then no matter whether the front or back of the vibrating rod 2 faces outward, the second suspension hole 421 on the corresponding plug-in part 42 will always correspond to the position of the second through hole, thereby improving the installation efficiency.

[0055] like Figure 3 As shown, the protective component 6 includes a tubular rivet embedded in the first suspension hole 33 or a flat washer welded to one or both sides of the first suspension hole 33. It is understood that this application does not limit the specific structure of the protective component 6 or its installation method. The following only provides a specific structure for reference, in which the protective component 6 includes a tubular rivet embedded in the first suspension hole 33.

[0056] It should be noted that in this embodiment, the protective component 6 is not limited to tubular rivets and flat washers; any component that can protect the first suspension hole 33 is acceptable. The purpose is to prevent the first suspension hole 33 from being worn due to collision between the first connecting component 7 and the first suspension hole 33 during the vibration process, thereby improving the service life of the anode plate 3.

[0057] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. An anode system for an electrostatic precipitator, comprising an anode plate hanger (1), a vibrating rod (2), and a plurality of anode plates (3), wherein the plurality of anode plates (3) are arranged in parallel between the anode plate hanger (1) and the vibrating rod (2), characterized in that, A connecting plate (4) that can extend into the vibrating rod (2) is installed at a position away from the anode plate hanger (1) on the anode plate (3). The connecting plate (4) is inserted into the vibrating rod (2), and multiple blocks (5) for impacting the anode plate are installed in the vibrating rod (2). A double-point suspension assembly is installed between the vibrating rod (2) and two of the connecting plates (4). A single-point suspension assembly is installed between the anode plate (3) and the anode plate hanger (1). When the vibrating rod (2) is struck by the vibrating system, the anode plate (3) is deflected by the single-point suspension assembly. The vibrating rod (2) is suspended at only two points between itself and the row of anode plates (3); The anode plate (3) has symmetrical notches (31) at one end near the corner of the anode plate rod (1), and a protrusion (32) that can extend into the anode plate rod (1) is formed between the two notches (31). A first suspension hole (33) is provided at the corner of the protrusion (32) near the end. After the entire row of anode plates (3) is suspended at a single point, there is a certain gap between the protrusions (32) at their top ends; The connecting plate (4) is composed of a connecting part (41) and a plug-in part (42). The plug-in part (42) extends into the vibrating rod (2), and the connecting part (41) extends to the outside of the vibrating rod (2). The connecting part (41) fits against the center of the recess (34) near the bottom end of the anode plate (3), and a fastener (8) is installed between the connecting part (41) and the recess (34). The portion of the connecting plate (4) extending into the vibrating rod (2) is located between two adjacent stops (5); Two adjacent plug-in portions (42) are respectively attached to the two sides of two adjacent recesses (34), so that multiple connecting plates (4) are alternately distributed; The dual-point suspension assembly includes two second connectors (9) that pass through the vibrating rod (2). The two connecting plates (4) have second suspension holes (421) through which the second connectors (9) pass. The second connectors (9) are used to suspend the vibrating rod (2) on the corresponding connecting plate (4) of the connecting plate (4).

2. The anode system of the electrostatic precipitator according to claim 1, characterized in that, The single-point suspension assembly includes a protective member (6) and a first connecting member (7). The protective member (6) is installed at the corner of the protrusion (32) and is used to cover the edge of the opening of the first suspension hole (33). The first connecting member (7) passes through the anode plate hanger (1) and extends outward. The first connecting member (7) is disposed through the first suspension hole (33) and the protective member (6). The first connecting member (7) is used to suspend the protrusion (32) of the anode plate (3) on the anode plate hanger (1).

3. The anode system of the electrostatic precipitator according to claim 1, characterized in that, The vibrating rod (2) includes two horizontal plates (21) and a connecting block (22) located between the two horizontal plates (21). The connecting block (22) is respectively attached to the opposing sidewalls of the two horizontal plates (21) near their ends. A third connecting member (10) is provided through the two horizontal plates (21) and is respectively corresponding to the connecting block (22) and the stop block (5). The third connecting member (10) is used to fix the connecting block (22) and the stop block (5) between the two horizontal plates (21).

4. The anode system of the electrostatic precipitator according to claim 1, characterized in that, There are two first suspension holes (33), which are symmetrically distributed about the center line of the protrusion (32), and only one of the first suspension holes (33) is used to suspend the anode plate (3).

5. The anode system of the electrostatic precipitator according to claim 3, characterized in that, The insertion portions (42) of the two adjacent connecting plates (4) are respectively attached to the opposing sidewalls of the two horizontal plates (21).

6. The anode system of the electrostatic precipitator according to claim 1, characterized in that, There are two second suspension holes (421), and the two second suspension holes (421) are symmetrically distributed about the center line of the plug (42).

7. The anode system of the electrostatic precipitator according to claim 2, characterized in that, The protective component (6) includes a tubular rivet embedded in the first suspension hole (33) or a flat washer welded to one or both sides of the first suspension hole (33).

Images