Method for preventing deflection of submerged arc furnace electrode

Abstract

The invention discloses a method for preventing deflection of a submerged arc furnace electrode. In the collecting process in a furnace, a furnace center burden is collected after a small surface burden is collected; in the normal production period, a caked burden in the furnace center of the electrode in the furnace is timely loosened; the burden around a tapping phase electrode is regularized before tapping to guarantee high small surface burden of the electrode and low inner ring burden near the furnace center; in the tapping process, when fire occurs around the electrode, the small surface fire is sealed; and meanwhile, the small surface burden is properly raised. The method increases the natural perpendicularity of the three-phase electrode from the furnace collecting operation aiming at the phenomenon of outward deflection of the three-phase electrode in the furnace caused by no burden feeding in the furnace center of the three-phase electrode in the furnace and acute area expansion of a dead material area in the furnace center, and is simple in process, low in operation difficulty, easy in aftertreatment process, green and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of ore smelting, in particular to a method for preventing electrode deflection of a submerged arc furnace. Background technique [0002] With the rapid development of iron and steel enterprises, the competition in the ferroalloy industry is becoming increasingly fierce. In order to enable enterprises to maintain their competitiveness in the industry for a long time, it is the only way for the long-term development of the industry to constantly explore and explore new ideas and implement new processes. [0003] At present, the traditional process production mode has been basically finalized, and the personalized production operation mode of each manufacturer is currently highlighted. Different operation modes cause the level of industry indicators to be uneven, and the gap in technical and economic indicators is gradually widening. Therefore, in order to further reduce the alloy production process To reduce t...

AI Technical Summary

Problems solved by technology

[0005] The three-phase electrodes in the submerged arc furnace are continuously roasted and consumed in a high-temperature atmosphere and environment for a long time. However, due to the limited equipment on the furnace top, the circulation speed of the furnace charge and the external force during the distribution process, the natural verticality of the three-phase electrodes is affected. , the electrode itself is not uniformly stressed. Under the action of external force, the three-phase electrodes in the furnace are deflected to varying degrees, and the deflection angle is basically 8°±2°, which leads to frequent electrode accidents and failures, which directly affects the effectiveness of the submerged arc furnace. The improvement of operating rate and technical and economic indicators has deteriorated various indicators such as product output, quality, and cost, and brought heavy losses to the normal operation of the enterprise.