Electric furnace electrode control system

Abstract

The invention discloses an electric furnace electrode control system, and belongs to the field of electric furnace automation control. The system can realize continuous adjustment of the diameter of an electrode circle, and has a function of independently lifting the height of a three-phase electrode. A hardware part of the control system comprises a bearing shell, a mounting base, a lifting device, a station adjusting device, a cross arm, an electrode circle adjusting device, an electrode clamping device and the like, and the station adjusting device can drive the bearing shell, the lifting device and the cross arm to rotate integrally to achieve continuous heating of a plurality of steel ladles. Compared with the prior art, the energy consumption can be obviously reduced, the production efficiency can be improved, the conditions of electric arc furnace burning and the like are avoided, and uniform temperature distribution in the furnace is ensured.

Description

technical field [0001] The invention belongs to the field of electric furnace automatic control, in particular to an electric furnace electrode control system. Background technique [0002] The electric arc furnace is an electric furnace that uses the high temperature generated by the electrode arc to smelt ores and metals. When the gas discharge forms an arc, the energy is very concentrated, and the temperature in the arc zone is above 3000°C. For smelting metals, the electric arc furnace is more flexible than other steelmaking furnaces. It can effectively remove impurities such as sulfur and phosphorus. The furnace temperature is easy to control and the equipment occupies a small area. It is suitable for smelting high-quality alloy steel. The furnace structure has the following technical problems: [0003] 1) The diameter of the electrode circle of the existing electric arc furnace cannot be adjusted. Since the diameter of the electrode circle is directly related to energ...

AI Technical Summary

Problems solved by technology

[0003] 1) The diameter of the electrode circle of the existing electric arc furnace cannot be adjusted. Since the diameter of the electrode circle is directly related to energy consumption and output, the diameter of the electrode circle in the electric furnace is too small, and the clear distance between the three electrodes is too small, resulting in the formation of three There are too many overlapping parts of the molten pool, forming an overly concentrated hot zone in the center of the furnace, reducing the resistance between the electrodes, the reaction area in the furnace is too small, the amount of chemical materials is low, the output is low, and the power consumption must be high. If the electrode of the electric furnace electrode If the diameter of the circle is too large, the net distance between the three electrodes in the electric furnace is too large, resulting in too few overlapping parts of the three molten pools formed, and there will be a dead angle where the heat is not concentrated in the middle of the three molten pools, which is not good for production.

[0004] 2) During the operation of the electric arc furnace, the height of the electrodes needs to be adjusted frequently. The three-phase electrodes of some existing electric arc furnace structures cannot be adjusted independently. Even if the three-phase electrodes of some electric arc furnace structures can be adjusted independently, their verticality and strength are low. , it is prone to shaking during use;

[0005] 3) In the process of heating the ladle, the electric arc furnace generally adopts the structure of "one furnace and one ladle". When the ladle is in the process of transportation, fixing, installation, etc., the electric arc furnace can only start heating when the ladle is ready, which wastes a lot of energy. operating hours

Images