Method for treating arching problem of charging by automatic control system of yellow phosphorus furnace electrode

Abstract

The invention discloses a method for treating arching problem of charging by an automatic control system of a yellow phosphorus furnace electrode, comprising the following steps of firstly calculating the needed smelting time according to the charging condition and smelting process, selecting the lifting time point of the electrode hereby, and controlling all electrodes to lift upwards and downwards simultaneously by a computer when each time points arrives. The method has the active effects that the large-scale arching phenomenon forming and broken electrode accidents in the furnace can be avoided, the electrodes can be effectively protected against breaking, the normal running of the smelting process is maintained and the objects of improving electric and thermal efficiency, reducing the electric consumption for smelting and improving the output can be achieved.

Description

technical field [0001] The invention relates to a method for processing furnace material arching by an automatic electrode control system, in particular to a method for processing furnace material arching by an automatic electrode control system for a yellow phosphorus furnace. Background technique [0002] Yellow phosphorus furnace is a kind of submerged arc furnace series. The smelted product is yellow phosphorus. The core theory of its smelting is: through ionized air to form a directional high-temperature ion flow-arc, convert electrical energy into heat energy, and provide sufficient high temperature for the reduction reaction. temperature field. The state of the arc depends on the distance between the electrode tip and the discharge body, the conductivity of the discharge body, the voltage, the temperature around the electrode, and the resistance characteristics of the charge medium. [0003] During the smelting process of the yellow phosphorus furnace, it often occur...

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Problems solved by technology

[0003] During the smelting process of the yellow phosphorus furnace, it often occurs that the furnace charge forms an arch in the furnace. When the arch is serious, a large-scale collapse will occur, and a large-scale collapse will lead to an electrode broken accident.

In order to avoid large-scale arching of the charge in the furnace, it is usually solved by manually raising and lowering the electrodes based on personal experience. There is also a method of controlling the electrode lifting by PLC to deal with the arching of the charge, but it is also based on the same as manual control. However, the common disadvantages of both are that the manual operation is random, labor-intensive, unbalanced three-phase power, high power consumption, low output, and low ore recovery rate.

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