Cathode frame of multi-layer elastic support electric dust remover

Abstract

The utility model discloses a multi-layer type elastic support electric dust remover cathode framework, which comprises a suspension framework, a plurality of pull rods, a plurality of first-level elastic support mechanisms and a plurality of second-level elastic support mechanisms, the lower ends of the pull rods are connected with the suspension framework through the second-level elastic support mechanisms, a cathode small framework is fixedly arranged on the suspension framework, and the lower ends of the pull rods are connected with the suspension framework through the second-level elastic support mechanisms. The pull rods are hung on the corresponding insulating porcelain bushings through the first-stage elastic supporting mechanism, the second-stage elastic supporting mechanism comprises a second-stage sleeve and a second-stage spring, the lower ends of the pull rods are elastically installed in the second-stage sleeve through the second-stage spring, the first-stage elastic supporting mechanism comprises a first-stage sleeve and a first-stage spring, and the first-stage sleeve is elastically installed in the second-stage sleeve through the second-stage spring. Compared with the prior art, the cathode wire vibration acceleration transmission device has the advantages that the vibration acceleration transmission effect is good, the dust removal effect of the cathode wire is improved, the structure is simple, and the adaptability to the improvement of an existing electric dust remover is good.

Description

Technical Field

[0001] This utility model relates to the technical field of flue gas pollutant treatment and electrostatic precipitators, and in particular to a multi-layer elastic support cathode frame for an electrostatic precipitator. Background Technology

[0002] Electrostatic precipitators (ESPs) are the mainstream equipment for industrial flue gas dust treatment. To improve the discharge performance of ESPs, mechanical rapping cleaning devices are generally installed on the cathode frame. When the ash on the cathode wire adheres to a certain thickness, rapping cleaning is performed, or rapping cleaning is performed at set intervals. In recent years, due to factors such as sludge co-firing, leakage of low-temperature economizers, and the formation of ammonium bisulfate from upstream ammonia escape, the viscosity of ash has increased significantly. The top of the cathode suspension frame and the cathode small frame on which the cathode wire is installed in the existing ESPs are hinged, resulting in poor transmission of rapping acceleration. The cathode of the ESP often cannot be effectively rapped due to the high viscosity of the ash, which leads to ineffective discharge of the cathode wire and causes corona sealing problems, reducing the operating efficiency of the ESP. Increasing the rapping force can easily lead to secondary dust generation, affecting the dust removal efficiency. Summary of the Invention

[0003] The purpose of this invention is to solve the problems in the prior art by proposing a multi-layer elastic support cathode frame for electrostatic precipitators. This frame has a good vibration acceleration transmission effect, improves the dust removal effect of the cathode wire, and has a simple structure with good adaptability to the retrofitting of existing electrostatic precipitators.

[0004] To achieve the above objectives, this utility model proposes a multi-layer elastic support cathode frame for an electrostatic precipitator, comprising a suspension frame, several tie rods, several primary elastic support mechanisms, and several secondary elastic support mechanisms. The lower ends of the tie rods are all connected to the suspension frame through secondary elastic support mechanisms. A small cathode frame is fixedly mounted on the suspension frame. The tie rods are all suspended from corresponding insulating porcelain sleeves through primary elastic support mechanisms. Each secondary elastic support mechanism includes a secondary sleeve and a secondary spring. The lower end of the tie rod is elastically mounted inside the secondary sleeve through a secondary spring. Each primary elastic support mechanism includes a primary sleeve and a primary spring. The upper end of the tie rod is elastically mounted inside the primary sleeve through a primary spring.

[0005] Preferably, the lower end of the secondary sleeve is provided with a lower support, the pull rod is provided with an upper support, and the secondary spring is located between the lower support and the upper support and is sleeved on the secondary sleeve.

[0006] Preferably, the upper end of the secondary sleeve is provided with a retaining ring, and the pull rod is provided with an anti-detachment body located at the lower end of the retaining ring.

[0007] Preferably, the lower end of the pull rod is provided with a lower piston body, and the secondary sleeve below the piston body is provided with buffer compression oil.

[0008] Preferably, the upper and lower ends of the primary sleeve are respectively provided with a lower seat and an upper seat, and the front and rear side walls of the primary sleeve are provided with sliding groove holes. Each sliding groove hole is provided with a sliding body that is fixedly connected to the pull rod. A primary spring is provided between the sliding body and the upper seat and is sleeved on the primary sleeve.

[0009] Preferably, the upper end of the pull rod is provided with an upper piston body, and the first-stage sleeve above the upper piston body is provided with buffer compression oil.

[0010] The beneficial effects of this utility model are as follows: By connecting the lower ends of the pull rods to the suspension frame through a two-stage elastic support mechanism, and suspending the pull rods on the corresponding insulating porcelain sleeves through a first-stage elastic support mechanism, the suspension frame and the cathode small frame are fixed together to form a whole and are suspended through the cooperation of the first and second-stage elastic supports and the pull rods. This achieves effective transmission of vibration acceleration during cathode vibration, improves the dust removal effect of the cathode wire, and has a simple structure with good adaptability to the retrofitting of existing electrostatic precipitators.

[0011] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a multi-layer elastic support cathode frame for an electrostatic precipitator according to this utility model.

[0013] Figure 2 yes Figure 1 Enlarged view of A in the middle;

[0014] Figure 3 yes Figure 1 A magnified view of B in the middle.

[0015] In the diagram: 1-Suspension frame, 2-Tie rod, 3-First-stage elastic support mechanism, 4-Second-stage elastic support mechanism, 5-Insulating porcelain sleeve, 6-Cathode small frame, 7-Buffer compression oil, 31-First-stage sleeve, 32-First-stage spring, 33-Lower seat, 34-Upper seat, 35-Sliding groove hole, 36-Sliding body, 37-Upper piston body, 41-Second-stage sleeve, 42-Second-stage spring, 43-Lower support, 44-Upper support, 45-Retaining ring, 46-Anti-detachment body, 47-Lower piston body. Detailed Implementation

[0016] See Figure 1 , Figure 2 and Figure 3This utility model discloses a multi-layer elastic support cathode frame for an electrostatic precipitator, comprising a suspension frame 1, several tie rods 2, several primary elastic support mechanisms 3, and several secondary elastic support mechanisms 4. The lower ends of the tie rods 2 are all connected to the suspension frame 1 through the secondary elastic support mechanisms 4. A cathode small frame 6 is fixedly mounted on the suspension frame 1. The tie rods 2 are all suspended from corresponding insulating porcelain sleeves 5 through the primary elastic support mechanisms 3. The secondary elastic support mechanism 4 includes a secondary sleeve 41 and a secondary spring 42. The lower ends of the tie rods 2 are elastically installed in the secondary sleeve 41 through the secondary spring 42. The primary elastic support mechanism 3 includes a primary sleeve 31 and a primary spring 32. The upper ends of the tie rods 2 are elastically installed in the primary sleeve 31 through the primary spring 32.

[0017] The lower end of the secondary sleeve 41 is provided with a lower support 43, the pull rod 2 is provided with an upper support 44, and the secondary spring 42 is located between the lower support 43 and the upper support 44 and is sleeved on the secondary sleeve 41.

[0018] The upper end of the secondary sleeve 41 is provided with a retaining ring 45, and the pull rod 2 is provided with an anti-detachment body 46 located at the lower end of the retaining ring 45.

[0019] The lower end of the pull rod 2 is provided with a lower piston body 47, and the secondary sleeve 41 below the piston body 47 is provided with buffer compression oil 7.

[0020] The first-stage sleeve 31 has a lower seat 33 and an upper seat 34 at its upper and lower ends, respectively. The front and rear side walls of the first-stage sleeve 31 are provided with sliding groove holes 35. Each sliding groove hole 35 is provided with a sliding body 36 fixedly connected to the pull rod 2. A first-stage spring 32 is provided between the sliding body 36 and the upper seat 34 and is sleeved on the first-stage sleeve 31.

[0021] The upper end of the pull rod 2 is provided with an upper piston body 37, and the first-stage sleeve 31 above the upper piston body 37 is provided with buffer compression oil 7.

[0022] Buffer hydraulic oil 7 is a mixture of hydraulic oil and air.

[0023] The working process of this utility model:

[0024] This utility model discloses a multi-layer elastic support cathode frame for an electrostatic precipitator. During operation, the lower ends of the pull rods 2 are connected to the suspension frame 1 through a secondary elastic support mechanism 4. The pull rods 2 are suspended on the corresponding insulating porcelain sleeves 5 through a primary elastic support mechanism 3. The suspension frame 1 and the cathode small frame 6 are fixed together to form a whole and are suspended through the cooperation of the primary and secondary elastic supports and the pull rods 2. This achieves effective transmission of vibration acceleration during cathode vibration, improves the dust removal effect of the cathode wire, and has a simple structure with good adaptability to the retrofitting of existing electrostatic precipitators.

[0025] The pull rod and sleeve seat are mutually restrained, and can move vertically up and down through springs and buffered compressed oil. This ensures that the vertical vibration is fully transmitted without affecting the distance between the cathode and anode due to excessive movement.

[0026] When the cathode frame 6 is subjected to vertical vibration force, the cathode frame 6 drives the lower support 43 and the secondary sleeve 41 to move upward through the suspension frame 1. The lower support 43 compresses the secondary spring 42 and the secondary sleeve 41 compresses the buffer oil 7 for buffering. Then, the upper support 44 and the lower piston body 47 drive the pull rod 2 to move upward. The pull rod 2 compresses the primary spring 32 and the buffer oil 7 again through the sliding body 36 and the upper piston body 37, so that the vertical vibration force can be fully transmitted without affecting the distance between the cathode and the anode due to excessive movement.

[0027] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A multi-layer elastic support cathode frame for an electrostatic precipitator, characterized in that: The device includes a suspension frame (1), several tie rods (2), several primary elastic support mechanisms (3) and several secondary elastic support mechanisms (4). The lower ends of the tie rods (2) are connected to the suspension frame (1) through the secondary elastic support mechanisms (4). A cathode small frame (6) is fixed on the suspension frame (1). The tie rods (2) are suspended on the corresponding insulating porcelain sleeves (5) through the primary elastic support mechanisms (3). The secondary elastic support mechanism (4) includes a secondary sleeve (41) and a secondary spring (42). The lower end of the tie rod (2) is elastically installed in the secondary sleeve (41) through the secondary spring (42). The primary elastic support mechanism (3) includes a primary sleeve (31) and a primary spring (32). The upper end of the tie rod (2) is elastically installed in the primary sleeve (31) through the primary spring (32).

2. The multi-layer elastic support cathode frame of an electrostatic precipitator as described in claim 1, characterized in that: The lower end of the secondary sleeve (41) is provided with a lower support (43), the upper support (44) is provided on the pull rod (2), and the secondary spring (42) is located between the lower support (43) and the upper support (44) and is sleeved on the secondary sleeve (41).

3. The multi-layer elastic support cathode frame of an electrostatic precipitator as described in claim 1, characterized in that: The upper end of the secondary sleeve (41) is provided with a retaining ring (45), and the pull rod (2) is provided with an anti-detachment body (46) located at the lower end of the retaining ring (45).

4. The multi-layer elastic support cathode frame of an electrostatic precipitator as described in claim 1, characterized in that: The lower end of the pull rod (2) is provided with a lower piston body (47), and the secondary sleeve (41) below the piston body (47) is provided with buffer compression oil (7).

5. The multi-layer elastic support cathode frame of an electrostatic precipitator as described in claim 1, characterized in that: The upper and lower ends of the first-stage sleeve (31) are respectively provided with a lower seat (33) and an upper seat (34). The front and rear side walls of the first-stage sleeve (31) are provided with sliding groove holes (35). The sliding groove holes (35) are provided with sliding bodies (36) that are fixedly connected to the pull rod (2). A first-stage spring (32) is provided between the sliding body (36) and the upper seat (34) and is sleeved on the first-stage sleeve (31).

6. The multi-layer elastic support cathode frame of an electrostatic precipitator as described in claim 1, characterized in that: The upper end of the pull rod (2) is provided with an upper piston body (37), and the first-stage sleeve (31) above the upper piston body (37) is provided with buffer compression oil (7).

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