High-voltage dust collection insulation sealing device

Abstract

The invention belongs to the technical field of electric dust collection equipment, and particularly relates to a high-voltage electric dust collection insulation sealing device which comprises an insulation box arranged at the top of an electric dust collector and used for mounting a cathode porcelain basin; the isolation sealing disc is arranged between the insulation box and the electric field shell plate; the space between the isolation sealing disc and the electric field shell plate is filled with the sealing pouring material; the asbestos sealing disc is arranged between the isolation sealing disc and the sealing pouring material; the inner insulating sleeve is sleeved outside the hanging shaft and is positioned in the insulating box; and the fixed plate is arranged between the inner insulating sleeve and the insulating box. According to the method, the copper strip samples in the selected specific length interval can be detected, and the overall quality of the whole batch of copper strips is deduced according to the quality condition of the samples, so that the sampling detection mode is efficient and economical, and the consistency and the reliability of the product quality are ensured while the production efficiency is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of electric dust collector equipment, and in particular relates to a high-voltage electric dust collector insulating sealing device. Background Art

[0002] During the operation of electrostatic precipitators, many problems are prone to condensation, creepage, frequent electric field tripping, low secondary voltage and current, dust collection efficiency and even failure to supply power. The main reasons are that the smelting flue gas has a complex composition, contains SO2, dust and flue gas temperature, and the operating conditions fluctuate greatly. Therefore, during operation, dust is easily accumulated on the top cathode insulating porcelain basin to form condensation acid liquid, which leads to electric field tripping and high-voltage electric shock damage to the cathode box porcelain shaft and insulating porcelain basin. In particular, poor insulation performance of the electric field cathode leads to low voltage and current operation in the electric field and even frequent electric field tripping, which seriously affects the power supply time rate and dust collection efficiency of the electric field. Frequent power outages are required to clean the dust in the cathode box and replace the porcelain shaft and porcelain basin to ensure the normal operation of the equipment, resulting in reduced dust collection efficiency and increased resistance and cost of the subsequent acid production system. Summary of the Invention

[0003] The object of the present invention is to provide a high-voltage electric dust collector insulating sealing device to solve the problems raised in the above background technology.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is: A high-voltage electric dust collector insulating sealing device, comprising: The insulation box is installed on the top of the electrostatic precipitator and is used to install the cathode porcelain basin; Isolation sealing disk, installed between the insulation box and the electric field housing plate; Sealing casting material, filled between the isolation sealing disk and the electric field shell plate; Asbestos sealing disc, arranged between the isolation sealing disc and the sealing casting material; The inner insulating sleeve is sleeved outside the hanging shaft and located inside the insulating box to protect the cathode porcelain basin; The fixing plate is installed between the inner insulating sleeve and the insulating box and is used to fix the inner insulating sleeve.

[0005] The isolation sealing disk and the asbestos sealing disk are both annular structures and are tightly fitted with the electric field housing plate.

[0006] The sealing casting material is a high temperature resistant and corrosion resistant material.

[0007] The inner insulating sleeve is a quartz sleeve.

[0008] The fixing plate is connected to the insulation box through bolts.

[0009] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: The present invention solves the sealing problem of the shell and high-voltage insulating parts by modifying the internal and external structures of the insulation box, adding sealing rings and filling sealing materials between the box body and the electric field shell plate, and adding casting material sealing on the outside. It also solves the problem of frequent cracking caused by dust accumulation and condensation acid liquid in the internal insulation box of the electrostatic precipitator under complex smelting high-temperature flue gas conditions and condensation and creepage of the cathode porcelain basin, thereby greatly improving the service life of the cathode porcelain basin. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention.

[0011] Figure 2 It is a perspective view of the present invention.

[0012] Serial number and name of the accompanying drawings: insulation box 1, isolation sealing disk 2, sealing casting material 3, asbestos sealing disk 4, inner insulation sleeve 5, fixing plate 6. DETAILED DESCRIPTION

[0013] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0015] like Figure 1-2As shown, the present invention describes a high-voltage electric dust collector insulation sealing device, an insulation box 1, which is arranged on the top of the electric dust collector and is used to install a cathode porcelain basin, so that the flue gas cannot escape from the top plate to the hanging insulation box. The insulation box 1 is optimized so that the dust deposited in the insulation box can be discharged into the electric dust collector, and the electric field secondary current is increased from 100 to 300 mA to more than 400 mA, which is 1% to 1.5% higher than the electric field power transmission rate; an isolation sealing disk 2 is installed between the insulation box 1 and the electric field shell plate to prevent the flue gas from escaping from the top plate to the insulation box 1; a sealing casting material 3 is filled in the isolation sealing The sealing casting material 3 between the disk 2 and the electric field shell plate is a high-temperature resistant and corrosion-resistant material, which can enhance the sealing effect and solve the sealing problem between the shell and the high-voltage insulating parts; the asbestos sealing disk 4 is arranged between the isolation sealing disk 2 and the sealing casting material 3 to further improve the sealing performance; the inner insulating sleeve 5 is mounted outside the hanging shaft and is located in the insulating box 1 to protect the cathode porcelain basin; the fixing plate 6 is installed between the inner insulating sleeve 5 and the insulating box 1 by bolt connection to fix the inner insulating sleeve 5. The isolation sealing disk 2 and the asbestos sealing disk 4 are both annular structures and fit tightly with the electric field shell plate.

[0016] The inner insulating sleeve 5 is a quartz sleeve, which prevents low voltage and electric shock caused by moist flue gas. The corona current at the tip of the thorn wire increases from 0.015 to 0.03 mA, thus avoiding the back corona phenomenon caused by high-temperature flue gas and high-resistance dust from complex smelting processes containing lead and zinc. This reduces the cathode grounding failure rate and improves operation and dust collection efficiency.

[0017] A sealed door is provided inside the insulation box 1 to facilitate staff to handle electric field faults in a timely manner.

[0018] After the present invention was implemented in our company, taking the LD100 electrostatic precipitator as an example, the procurement cost was saved by 278,000 yuan / year and the electricity consumption was saved by 8%, about 320,000 yuan / year.

Claims

1. A high-voltage electric dust collector insulation sealing device, characterized in that: include: An insulating box (1) is provided on the top of the electrostatic precipitator and is used for installing a cathode porcelain basin; An isolation sealing disk (2) is installed between the insulation box (1) and the electric field housing plate; Sealing casting material (3) is filled between the isolation sealing disk (2) and the electric field housing plate; An asbestos sealing disc (4) is disposed between the isolation sealing disc (2) and the sealing casting material (3); An inner insulating sleeve (5) is sleeved outside the hanging shaft and is located inside the insulating box (1) for protecting the cathode porcelain basin; A fixing plate (6) is installed between the inner insulating sleeve (5) and the insulating box (1) and is used to fix the inner insulating sleeve (5).

2. A high-voltage electric dust collector insulating sealing device according to claim 1, characterized in that: The isolation sealing disc (2) and the asbestos sealing disc (4) are both annular structures and fit tightly with the electric field housing plate.

3. A high-voltage electric dust collector insulating sealing device according to claim 1, characterized in that: The sealing casting material (3) is a high temperature resistant and corrosion resistant material.

4. A high-voltage electric dust collector insulating sealing device according to claim 1, characterized in that: The inner insulating sleeve (5) is a quartz sleeve.

5. A high-voltage electric dust collector insulating sealing device according to claim 4, characterized in that: The fixing plate (6) is connected to the insulation box (1) via bolts.

Images