A DC Submerged Thermal Electric Furnace with Variable Circuit

Abstract

The present invention belongs to the technical field of direct current submerged thermal furnace, specifically a variable circuit direct current submerged thermal electric furnace; it includes 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 connected to the furnace through wires. The controller is electrically connected; the servo motor drive shaft is fixedly connected with uniformly arranged conductive columns, and the number of conductive columns is four; the electrodes of the left and right conductive columns are negative and positive respectively; the electrodes of the front and rear conductive columns are respectively Negative electrode and positive electrode; the inner wall of the support plate is fixedly connected with an evenly arranged electrode disk; the present invention is mainly used to solve the problem that the heat generated by the anode area of ​​the positive electrode is higher than the heat generated by the cathode area of ​​the negative electrode during the working process of the current submerged arc furnace. Large, the smelting current is the main source of heat energy for electrode roasting, and the roasting near the electrode holder is similar when the pressing speed is equal, but because the anode electrode consumption is relatively fast, and the heating of the anode is more serious at the end, the electrode is often soft and hard problem of accidents.

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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