Electrostatic precipitator suspension system

Abstract

The utility model discloses a kind of electrostatic precipitation suspension system devices, it is related to electrostatic precipitation equipment technical field.The utility model includes column roof beam, the column roof beam bottom is provided with cathode boom, suspension assembly is arranged between the column roof beam and cathode boom.The utility model suspension assembly main porcelain bottle, the core structure of main porcelain bottle is completely identical with prior art, without completely removing the original top cover single-point suspension structure of equipment when reforming, only need to replace original column roof beam with the lengthened column roof beam of adaptation multi porcelain bottle installation, subsequently welding bottom sleeve and backing pad in the preset position of lengthened column roof beam, finally synchronously install main porcelain bottle and two sides auxiliary porcelain bottle, and by main porcelain bottle plus double auxiliary porcelain bottle three-point collaborative load-bearing structure, construct redundant protection system, when main porcelain bottle or auxiliary porcelain bottle appears failure due to aging, abrasion etc.

Description

Technical Field

[0001] This utility model belongs to the technical field of electrostatic dust removal equipment, and in particular relates to an electrostatic dust removal suspension system device. Background Technology

[0002] As a key piece of equipment for dust control in the metallurgical industry, the suspension stability of the cathode system of electrostatic precipitators directly affects the operating efficiency of the equipment. Currently, the cathode system of electrostatic precipitators generally adopts a single porcelain insulator suspension structure. This structure has an unavoidable risk of single-point failure: on the one hand, the porcelain insulator is prone to cracking due to thermal shock in the high-temperature environment of metallurgical production, or flashover caused by dirt accumulation. Once such a situation occurs, it will directly lead to the cathode falling, which in turn will cause a short circuit in the electric field and production stoppage; on the other hand, the swaying of the cathode during operation will accelerate the metal fatigue at the root of the porcelain insulator, seriously affecting the continuity of production.

[0003] Chinese patent application CN201565360U discloses a suspended high-pressure porcelain insulator box. It features an air outlet at the center of the top cover of a high-pressure electrostatic precipitator cylinder. Perforated flange bases are evenly distributed around the air outlet, and a cylindrical high-pressure porcelain insulator box is mounted on each flange on the base. The suspended high-pressure porcelain insulator box contains high-pressure porcelain insulator assemblies. This invention reduces the height of the high-pressure electrostatic precipitator and makes the high-pressure porcelain insulator box installation more stable. The weight of the high-pressure porcelain insulator box is vertically and evenly distributed on the cylinder of the high-pressure electrostatic precipitator, resulting in uniform stress distribution, stable operation, and high safety.

[0004] Although this patent theoretically distributes the load-bearing pressure of individual porcelain bottles by arranging multiple porcelain bottles in clusters, thus reducing the risk of single-point failure to some extent, this solution requires the complete removal of the original single-point suspension structure of the top cover of the equipment and the re-welding of multiple bases with flanges and porcelain bottle box supports. This not only causes destructive modifications to the original structure of the equipment, but also forces the production line to shut down for a long time due to the complexity of the modification process, which seriously affects the normal production rhythm of enterprises. In addition, although some devices strengthen the load-bearing porcelain bottles, they can only delay failure and cannot eliminate the risk of single-point failure.

[0005] To address these issues, we provide an electrostatic dust removal suspension system. Utility Model Content

[0006] The purpose of this utility model is to provide an electrostatic dust removal suspension system device, which solves the problems of high component replacement wear and high risk of single-point load-bearing failure in the existing electrostatic dust removal suspension system device by the cooperation of the main ceramic bottle and the auxiliary ceramic bottle.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0008] This utility model relates to an electrostatic dust removal suspension system device, comprising a column top beam, a cathode hanger rod disposed at the bottom of the column top beam, and a suspension assembly disposed between the column top beam and the cathode hanger rod. The suspension assembly includes a main ceramic insulator located between the column top beam and the cathode hanger rod. A first lead screw is fixedly connected to the top of the main ceramic insulator, the top of the first lead screw passing through the bottom of the column top beam and threaded with a first nut. A first threaded rod is fixedly connected to the bottom of the inner cavity of the main ceramic insulator, the bottom of the first threaded rod passing through the top of the cathode hanger rod and threaded with a first nut. Secondary ceramic insulators are disposed on both sides of the main ceramic insulator, and a second lead screw is fixedly connected to the top of the secondary ceramic insulator. The top of the lead screw passes through the bottom of the column top beam and is threaded to a second nut. The bottom of the inner cavity of the auxiliary porcelain bottle is fixedly connected to a second threaded rod. The bottom of the second threaded rod passes through the top of the cathode hanger and is threaded to a second nut. The threaded connection between the first threaded rod and the first nut enables the detachable connection between the main and auxiliary porcelain bottles, the column top beam, and the cathode hanger. Compared with the welded porcelain bottle box structure in the prior art, the failed main or auxiliary porcelain bottle can be disassembled and replaced separately during subsequent maintenance without disassembling the entire suspension system, which greatly improves the convenience of maintenance and reduces equipment downtime for maintenance. There are two of each of the second lead screw and the second threaded rod, which correspond to two auxiliary porcelain bottles respectively.

[0009] The present invention is further configured such that there are two auxiliary ceramic bottles, which are symmetrically distributed on both sides of the main ceramic bottle. The symmetrical arrangement of the auxiliary ceramic bottles on both sides allows the load transmitted by the cathode rod to be evenly distributed to one main ceramic bottle and two auxiliary ceramic bottles, avoiding overload of a single auxiliary ceramic bottle or the main ceramic bottle due to the load being biased to one side, and further ensuring the stability of the suspension system.

[0010] The present invention is further configured such that the auxiliary porcelain bottle and the main porcelain bottle are located on the same horizontal plane and the axes of the three are parallel. The fact that the main porcelain bottle and the auxiliary porcelain bottle are located on the same horizontal plane can ensure that the force direction of the three is perpendicular to the column top beam and the cathode hanger, avoid the lateral component force generated by the tilt of the axis of the main porcelain bottle or the auxiliary porcelain bottle, and prevent stress concentration at the root of the main porcelain bottle or the auxiliary porcelain bottle due to long-term bearing of additional torque.

[0011] The present invention is further provided that a dirt-proof cover is provided at the bottom of the column top beam, and the inner side of the dirt-proof cover is detachably connected to the auxiliary ceramic bottle. The dirt-proof cover can prevent dust in the electrostatic dust removal equipment from directly adhering to the outer wall of the auxiliary ceramic bottle, avoid dust accumulation to form a conductive path, and maintain the insulation performance of the auxiliary ceramic bottle.

[0012] The present invention is further provided with a bottom sleeve on both sides of the bottom of the column top beam. The bottom of the bottom sleeve is fixedly connected to the auxiliary porcelain bottle. The bottom sleeve can provide a stable mounting base for the auxiliary porcelain bottle and avoid the problem of unstable installation caused by the bottom of the auxiliary porcelain bottle directly contacting the column top beam.

[0013] The present invention is further provided that a washer is provided at the bottom of the second nut, and the bottom of the washer is fixedly connected to the column top beam. The washer can disperse the pressure on the bottom of the column top beam when the second nut is tightened, avoid indentations or damage to the surface of the column top beam caused by direct contact between the second nut and the column top beam, and protect the structural strength of the column top beam.

[0014] The present invention is further configured such that a positioning groove is provided at the bottom of the column top beam, and a positioning rod is slidably connected to the inner cavity of the positioning groove. The bottom of the positioning rod is fixedly connected to the bottom sleeve. The cooperation between the positioning groove and the positioning rod can provide precise guidance when installing the bottom sleeve, so that the installation position of the bottom sleeve can be quickly determined by sliding the positioning rod along the positioning groove.

[0015] The present invention has the following beneficial effects.

[0016] 1. The core structure of the main ceramic bottle in the suspension assembly of this utility model is completely consistent with the existing technology. No design changes are required to the main ceramic bottle itself. During the modification, it is not necessary to completely remove the original single-point suspension structure of the top cover of the equipment. It is only necessary to replace the original column top beam with an extended column top beam that is suitable for the installation of multiple ceramic bottles. Then, the bottom sleeve and pad are welded at the preset position of the extended column top beam. Finally, the main ceramic bottle and the auxiliary ceramic bottles on both sides are installed simultaneously. The whole process does not require the re-welding of multiple bases with flanges and ceramic bottle box brackets as required by the existing technology. It will not cause destructive modifications to the original top cover, shell and other core structures of the equipment, thus reducing damage to the equipment body.

[0017] 2. This utility model's suspension assembly retains the main ceramic insulator and symmetrically adds auxiliary ceramic insulators on both sides. Through the three-point cooperative load-bearing structure of the main ceramic insulator and the two auxiliary ceramic insulators, a redundant protection system is constructed. When the main ceramic insulator or one of the auxiliary ceramic insulators fails due to aging, wear, or other reasons, the remaining ceramic insulators can immediately share the entire load, avoiding the paralysis of the entire suspension system due to the failure of a single ceramic insulator, eliminating the risk of single-point failure, and significantly improving the stability and safety of high-voltage electrostatic dust removal equipment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a perspective view of an electrostatic dust removal suspension system device.

[0020] Figure 2 This is a three-dimensional view of the suspension components in an electrostatic dust removal suspension system.

[0021] Figure 3 This is an enlarged view of point A in an electrostatic dust removal suspension system device.

[0022] Figure 4This is an enlarged view of point B in an electrostatic dust removal suspension system device.

[0023] In the attached diagram: 1. Column top beam; 2. Cathode hanger rod; 3. Suspension assembly; 301. Main porcelain insulator; 302. First lead screw; 303. First nut; 304. First threaded rod; 305. First nut; 306. Secondary porcelain insulator; 307. Second lead screw; 308. Second nut; 309. Second threaded rod; 310. Second nut; 4. Anti-fouling cover; 5. Bottom sleeve; 6. Gasket; 7. Positioning groove; 8. Positioning rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1 Please see Figure 1-4 This utility model is an electrostatic dust removal suspension system device, including a column top beam 1, a cathode hanger 2 disposed at the bottom of the column top beam 1, and a suspension assembly 3 disposed between the column top beam 1 and the cathode hanger 2. The suspension assembly 3 includes a main ceramic insulator 301, which is located between the column top beam 1 and the cathode hanger 2. A first lead screw 302 is fixedly connected to the top of the main ceramic insulator 301. The top of the first lead screw 302 passes through the bottom of the column top beam 1 and is threadedly connected to a first nut 303. A first... A threaded rod 304 is provided. The bottom of the first threaded rod 304 passes through the top of the cathode hanger 2 and is threadedly connected to a first nut 305. A secondary ceramic bottle 306 is provided on both sides of the main ceramic bottle 301. A second threaded rod 307 is fixedly connected to the top of the secondary ceramic bottle 306. The top of the second threaded rod 307 passes through the bottom of the column top beam 1 and is threadedly connected to a second nut 308. A second threaded rod 309 is fixedly connected to the bottom of the inner cavity of the secondary ceramic bottle 306. The bottom of the second threaded rod 309 passes through the top of the cathode hanger 2 and is threadedly connected to a second nut 310.

[0026] Specifically: The first threaded rod 304 and the first nut 305 are used to connect the main and auxiliary porcelain insulators 306 to the column top beam 1 and the cathode hanger 2 in a threaded connection manner. Compared with the welded and fixed porcelain insulator box structure in the prior art, the failed main porcelain insulator 301 or auxiliary porcelain insulator 306 can be disassembled and replaced separately during subsequent maintenance without disassembling the entire suspension system, which greatly improves the convenience of maintenance and reduces equipment downtime for maintenance. There are two of each of the second screw rod 307 and the second threaded rod 309, which correspond to two auxiliary porcelain insulators 306 respectively.

[0027] Example 2 Please see Figure 1-4Based on Embodiment 1, there are two auxiliary ceramic bottles 306, which are symmetrically distributed on both sides of the main ceramic bottle 301. The auxiliary ceramic bottles 306 and the main ceramic bottle 301 are located on the same horizontal plane and their axes are parallel. A dirt cover 4 is provided at the bottom of the column top beam 1. The inner side of the dirt cover 4 is detachably connected to the auxiliary ceramic bottle 306. Bottom sleeves 5 are provided on both sides of the bottom of the column top beam 1. The bottom of the bottom sleeves 5 is fixedly connected to the auxiliary ceramic bottle 306. A washer 6 is provided at the bottom of the second nut 308. The bottom of the washer 6 is fixedly connected to the column top beam 1. A positioning groove 7 is opened at the bottom of the column top beam 1. A positioning rod 8 is slidably connected to the inner cavity of the positioning groove 7. The bottom of the positioning rod 8 is fixedly connected to the bottom sleeve 5.

[0028] Specifically: The symmetrical auxiliary ceramic insulators 306 on both sides allow the load transmitted by the cathode hanger 2 to be evenly distributed to one main ceramic insulator 301 and two auxiliary ceramic insulators 306, preventing overload of a single auxiliary ceramic insulator 306 or main ceramic insulator 301 due to load bias to one side, further ensuring the stability of the suspension system. The main ceramic insulator 301 and auxiliary ceramic insulators 306 are located on the same horizontal plane, ensuring that the force direction of all three is perpendicular to the column top beam 1 and the cathode hanger 2, avoiding lateral component force caused by the tilt of the axis of the main ceramic insulator 301 or auxiliary ceramic insulator 306, and preventing stress concentration at the base of the main ceramic insulator 301 or auxiliary ceramic insulator 306 due to long-term bearing of additional torque. The anti-fouling cover 4 can block the dust inside the electrostatic precipitator. Dust adheres directly to the outer wall of the secondary porcelain insulator 306, preventing dust accumulation from forming a conductive path and maintaining the insulation performance of the secondary porcelain insulator 306. The bottom sleeve 5 provides a stable mounting base for the secondary porcelain insulator 306, preventing the bottom of the secondary porcelain insulator 306 from directly contacting the column top beam 1, which could lead to unstable installation. The gasket 6 can distribute the pressure on the bottom of the column top beam 1 when the second nut 308 is tightened, preventing indentations or damage to the surface of the column top beam 1 caused by direct contact between the second nut 308 and the column top beam 1, thus protecting the structural strength of the column top beam 1. The cooperation between the positioning groove 7 and the positioning rod 8 can provide precise guidance when installing the bottom sleeve 5, allowing the positioning rod 8 to slide along the positioning groove 7 to quickly determine the installation position of the bottom sleeve 5.

[0029] The working principle of this utility model is as follows: During installation, it is only necessary to remove the column top beam 1 on the original main porcelain bottle 301 and replace it with the modified and lengthened column top beam 1. Then, weld the bottom sleeve 5 and the pad plate onto the column top beam 1. Then, pass the first screw 302 through the column top beam 1 and tighten the first nut 303. Pass the first threaded rod 304 through the cathode hanger 2 and tighten the first nut 305 to complete the installation of the main porcelain bottle 301. Then, pass the second screw 307 through the column top beam 1 and tighten the second nut 308. Pass the second threaded rod 309 through the cathode hanger 2 and tighten the second nut 310 to complete the installation of the auxiliary porcelain bottle 306. During use, the two auxiliary porcelain bottles 306 and the main porcelain bottle 301 jointly bear the weight of the cathode assembly, reducing the risk of the main porcelain bottle 301 breaking and falling off the frame, reducing the damage rate of the main porcelain bottle 301, and saving the cost of purchasing the main porcelain bottle 301.

[0030] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. An electrostatic dust removal suspension system device, comprising a column top beam (1), characterized in that: A cathode hanger (2) is provided at the bottom of the column top beam (1), and a suspension assembly (3) is provided between the column top beam (1) and the cathode hanger (2). The suspension assembly (3) includes a main ceramic insulator (301), which is located between the column top beam (1) and the cathode hanger (2). A first lead screw (302) is fixedly connected to the top of the main ceramic insulator (301). The top of the first lead screw (302) passes through the bottom of the column top beam (1) and is threaded with a first nut (303). A first threaded rod (304) is fixedly connected to the bottom of the inner cavity of the main ceramic insulator (301). The bottom of the first threaded rod (304) passes through the top of the cathode hanger (2) and is threaded with a first nut (303). A first nut (305) is attached. A secondary ceramic bottle (306) is provided on both sides of the main ceramic bottle (301). A second screw (307) is fixedly connected to the top of the secondary ceramic bottle (306). The top of the second screw (307) passes through the bottom of the column top beam (1) and is threadedly connected to a second nut (308). A second threaded rod (309) is fixedly connected to the bottom of the inner cavity of the secondary ceramic bottle (306). The bottom of the second threaded rod (309) passes through the top of the cathode hanging rod (2) and is threadedly connected to a second nut (310).

2. The electrostatic dust removal suspension system device according to claim 1, characterized in that: The number of secondary porcelain bottles (306) is two, and they are symmetrically distributed on both sides of the main porcelain bottle (301).

3. The electrostatic dust removal suspension system device according to claim 1, characterized in that: The secondary porcelain bottle (306) and the main porcelain bottle (301) are located on the same horizontal plane, and their axes are parallel.

4. The electrostatic dust removal suspension system device according to claim 1, characterized in that: The bottom of the column top beam (1) is provided with a dirt cover (4), and the inner side of the dirt cover (4) is detachably connected to the auxiliary porcelain bottle (306).

5. The electrostatic dust removal suspension system device according to claim 1, characterized in that: Both sides of the bottom of the column top beam (1) are provided with bottom sleeves (5), and the bottom of the bottom sleeves (5) are fixedly connected to the auxiliary porcelain bottle (306).

6. The electrostatic dust removal suspension system device according to claim 1, characterized in that: The bottom of the second nut (308) is provided with a washer (6), and the bottom of the washer (6) is fixedly connected to the column top beam (1).

7. The electrostatic dust removal suspension system device according to claim 5, characterized in that: The bottom of the column top beam (1) is provided with a positioning groove (7), and a positioning rod (8) is slidably connected to the inner cavity of the positioning groove (7). The bottom of the positioning rod (8) is fixedly connected to the bottom sleeve (5).

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