Submerged arc furnace adjusting and control method

Abstract

The invention discloses a submerged arc furnace adjusting and control method. The functional relationship existing between the heat distribution coefficient C and furnace burden specific resistance Rmaterial ratio is as follow: C=a*R material ratio<2>+b*R material ratio, wherein a<0, and when C=0.5, R material ratio=-b / 2a, and a submerged arc furnace is adjusted and controlled with the functionalrelationship. The submerged arc furnace is adjusted and controlled through the method, the zone where the furnace burden specific resistance is located is judged through the furnace condition of thesubmerged arc furnace, then an operator is guided to adjust the furnace burden specific resistance according to production requirements, and the furnace burden specific resistance is fast and accurately adjusted to a furnace burden fusion zone or a high-temperature reduction zone to achieve stable production. The yield of the submerged arc furnace adjusted and controlled through the method is greatly increased, power consumption is reduced obviously, and human injuries and equipment accidents are avoided.

Description

Technical field: [0001] The invention relates to the field of application of submerged arc furnaces, in particular to a control method for submerged arc furnaces. Background technique: [0002] The submerged arc furnace is an electrometallurgical equipment that uses the arc heat at the end of the electrode and the resistance heat of the charge to convert electrical energy into heat energy, so that useful elements such as metals are reduced from ores or oxides. Because it is mainly used for metal oxidation The reduction smelting of ore is called submerged arc furnace or ore reduction submerged arc furnace. Submerged arc furnace is called ferroalloy furnace when it is used to produce ferroalloy; it is called calcium carbide furnace when it is used to produce calcium carbide; it is called yellow phosphorus furnace when it is used to produce yellow phosphorus; Titanium slag is called titanium slag furnace. [0003] When submerged arc furnaces produce ferroalloys, coke is mostl...

AI Technical Summary

Problems solved by technology

[0004] The submerged arc furnace is widely used, but in the production practice, there is no effective method to guide it. It is controlled entirely by the experience of the operator. There is no clear direction of regulation, and it takes a long time. The production of the submerged arc furnace is very unstable. Low output, high power consumption, major personal accidents, equipment accidents occur from time to time

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