Automatic welding system for electrode shell of submerged arc furnace

Abstract

The invention provides an automatic welding system for an electrode shell of a submerged arc furnace. The automatic welding system comprises a clamping mechanism and a digital control system, whereinthe clamping mechanism is used for clamping and fixing the upper section of an electrode shell, a welding mechanism is used for welding the upper section and the lower section of the electrode shell,and the digital control system is used for controlling the welding mechanism; and the welding mechanism comprises an annular rail, a servo annular vehicle and an electric welding machine, wherein theservo annular vehicle is arranged on the annular rail and can move in the circumferential direction of the electrode shell, and the electric welding machine is installed on the servo annular vehicle.When the electric welding machine rotates around the electrode shell along with the walking of the servo annular vehicle, automatic welding is carried out on the upper section and the lower section ofthe electrode shell, manual welding of workers is not needed, the automation degree is high, the efficiency is high, the labor intensity of workers is reduced, the smelting condition is also improved, and the production efficiency is greatly improved. The digital control system comprises a control system, an annular power supply system and a variable-frequency speed reducing driving system, wherein the control system is used for controlling the walking of the servo annular vehicle and the welding of the electric welding machine, the annular power supply system is used for providing a power source for the servo annular vehicle and the electric welding machine, and the variable-frequency speed reducing driving system is used for controlling the walking speed of the servo annular vehicle.

Description

technical field [0001] The invention relates to the technical field of electrode shell welding, in particular to an automatic welding system for an electrode shell of a submerged arc furnace. Background technique [0002] During the smelting process, the electrode shell on the submerged arc furnace is usually fixed in the hydraulic lifting system. Under the control of the hydraulic lifting system, it slowly falls with the continuous consumption of the electrode shell. To maintain consumption, the welding method currently in use is usually to cut off the power of the equipment first, and then manually add it, that is, the worker manually welds the upper and lower electrode shells together. After the welding is successful, the equipment is powered on again, and the electrode shell continues to consume. After being consumed to a certain extent, manual joining is performed, and the cycle repeats. However, this welding method has the following disadvantages: [0003] 1. It is n...

AI Technical Summary

Problems solved by technology

[0003] 1. It is necessary to stop the power once for one connection, which not only wastes time, but also affects the quality of smelting;

[0004] 2. Each addition requires workers to manually weld, which greatly increases the labor intensity of workers;

[0005] 3. The degree of automation is low, and the efficiency of manual splicing is low, resulting in low production efficiency

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