Novel holder-type electrode shell structure and installation butting process thereof

Abstract

The invention relates to a novel holder-type electrode shell structure and an installation butting process thereof, and belongs to the technical field of electrode shell manufacturing. A single-section electrode shell of the novel holder-type electrode shell structure comprises barrel bodies, inner rib plates, a guide spigot plate and outer rib plates, wherein the inner rib plates are equally welded to the inner walls of the barrel bodies; the outer rib plates are equally welded to the outer walls of the barrel bodies, and the upper barrel body and the lower barrel body are mutually butted through the guide spigot plate; during butting, the inner rib plates form one-to-one correspondence to the outer rib plates; reference lines, welded inside and outside the barrel bodies, of the inner ribplates and the outer rib plates are mutually parallel; the outer rib plates and the barrel bodies are welded in a staggered manner; and a low grinding amount for the outer rib plates during electrodeshell production and butting is achieved, so that the original evenness and smoothness of a material of a conductive part are guaranteed. The production procedures and the working time are saved, thequality of the electrode shell is improved, and the service life of a conductive component is prolonged; and during butting for the electrode shell, the requirement on the welding level of workers isgreatly lowered, and the welding quality can further be ensured.

Description

technical field [0001] The invention relates to a novel handle-type electrode shell structure and its installation and docking process, belonging to the technical field of electrode shell manufacturing. Background technique [0002] At present, the electrode shells used in domestic submerged arc furnaces are mainly divided into two types: pressure ring type and combined gripper type; because each has irreplaceable advantages, but also has inevitable shortcomings, especially the traditional combined gripping electrode may have more shortcomings: 1. When the arc plate parts are molded, due to the internal stress of the steel plate, there is a serious error between the formed plate and the design requirements. [0003] 2. The production process is complicated, and the production automation program is difficult to improve. [0004] At present, the production of domestic combined gripper-type electrode shells basically adopts a unified production mode, with many parts and proces...

AI Technical Summary

Problems solved by technology

[0002] At present, the electrode shells used in domestic submerged arc furnaces are mainly divided into two types: pressure ring type and combined gripper type; because each has irreplaceable advantages, but also has inevitable shortcomings, especially the traditional combined gripping electrode may have more shortcomings: 1. When the arc plate parts are molded, due to the internal stress of the steel plate, there is a serious error between the formed plate and the design requirements

[0003] 2. The production process is complicated, and the production automation program is difficult to improve

[0004] At present, the production of domestic combined gripper-type electrode shells basically adopts a unified production mode, with many parts and processes, and it is difficult to achieve efficient automatic production in the assembly process

[0005] 3. The production materials are strictly required and the cost increases

[0007] 3. The quality of the electrode shell is unstable and difficult to guarantee

[0008] Combined gripper-type electrode shell shell is seam-welded by multiple sets of arc plates and inner rib plates. The quality of the weld seam is subject to pressure, current, welding speed, cooling rate, power quality of the welding machine, material surface quality, rib plates and arc plates. Affected by various factors such as the molding quality of the electrode, it is difficult to guarantee the seam welding quality, and the quality inspection of the electrode shell is required

[0009] 4. For the resistance welding machine, it is difficult to ensure the quality of hot-melt welding due to the long-term operation of the internal high-temperature system and the irregular loss of the conductive copper pressure wheel.

[0010] 4. Weld quality inspection is difficult and time-consuming

[0016] 3. The surface quality of seam welding is poor, and the loss of conductive contact elements is large: because seam welding uses the base metal to be pressured and passed through a large current for self-fluxing welding, there will be an uneven groove on the surface after welding

After the seam welding is completed, although the weld seam is manually polished, there is still a problem of grinding flatness. When the gap is too large, sparking occurs, which affects production and aggravates the wear of conductive components.

[0017] 4. The conductive outer ribs of the single-section electrode shell are difficult to control and detect due to the welding quality and the electrode shell butt joint length is difficult, the quality is difficult to control, and it is prone to leakage and fire

[0018] 5. When docking, the upper and lower electrode shells are manually docked, and the docking lacks standardization. After the docking, the upper and lower electrode shells are concentric and have poor verticality, which affects the life and effect of conductive components and causes a certain burden on production.

[0019] 6. When the traditional combined gripper type electrode shell is extended, due to structural reasons, it is necessary to fully weld the butt joint of the outer rib plate, and the space of this part is narrow and tortuous, and the welding is difficult, so the technical requirements for the operators are high. In addition, the existing grinding tools cannot meet the grinding requirements, which will cause many difficulties for the subsequent rib grinding. If the grinding points meet the standards, the conductive copper components will be seriously damaged, and the maintenance efficiency of the furnace is high, which increases the operating costs of the enterprise.

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