Direct-current ore-smelting electric furnace with variable loop

Abstract

The invention belongs to the technical field of direct-current ore-smelting electric furnaces, in particular to a direct-current ore-smelting electric furnace with a variable loop. The direct-currentore-smelting electric furnace comprises a furnace body; the inner surface of the furnace body is fixedly connected with a servo motor at the bottom of the furnace body, and the servo motor is electrically connected with a controller through a wire; four uniformly-arranged conduction columns are fixedly connected to a drive shaft of the servo motor; the electrodes of the left and right conduction columns are a negative electrode and a positive electrode respectively; the electrodes of the front and rear conduction columns are a negative electrode and a positive electrode respectively; and electrode disks which are uniformly arranged are fixedly connected in the inner wall of the supporting plate. The direct-current ore-smelting electric furnace is mainly used for solving the problems that in the working process of an existing ore-smelting electric furnace, the calorific value of a positive electrode anode area is larger than that of a negative electrode cathode area, smelting current isa main heat energy source for electrode roasting, roasting near an electrode holder is similar under the condition that the pressing-down speed is equal, and but due to the fact that anode electrodeconsumption is relatively high and heating of the anode by an end head is more serious, and soft and hard electrode breakage accidents often occur.

Description

technical field [0001] The invention belongs to the technical field of direct current submerged heat electric furnace, in particular to a variable circuit direct current submerged heat electric furnace. Background technique [0002] At present, due to the lack of vertical positive and negative electrode smelting technologies in industrial applications, some related smelting technologies are still in the process of exploration, but this furnace type has achieved initial results in the existing very rare production lines, and the advantages of energy saving and environmental protection are obvious. , Compared with the AC electric furnace, it has the advantages of high power factor, small short-circuit reactance, no skin effect, etc., good powder adaptability, and stable production furnace conditions; compared with the bottom electrode technology DC furnace, there is no bottom electrode consumption, so there is no need to do it Regular bottom electrode overhaul work can ensure ...

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Problems solved by technology

[0006] In order to make up for the deficiencies of the prior art, the present invention proposes a variable circuit direct-current submerged thermal electric furnace. The present invention is mainly used to solve the problem that the heating value of the anode area of ​​the positive electrode is higher than that of the negative electrode cathode during the working process of the current submerged thermal electric furnace. The calorific value of the area is large, and the smelting current is the main source of heat energy for electrode roasting. The roasting near the electrode holder is similar under the condition of equal pressure and release speed, but because the anode electrode is consumed relatively quickly, and the heating of the anode is more serious at the end, it often occurs The problem of soft and hard break accidents of electrodes

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