Process package design method of electricity-saving submerged arc furnace

Abstract

The invention relates to a process package design method of an electricity-saving submerged arc furnace. The method is characterized by comprising the following steps that a, according to 0.9 power factor design, firstly determining the capacity of the submerged arc furnace and then determining safety current according to the current 7A per square centimeter of a carbon electrode; b, designing according to the sectional area of the electrode tip of the cross section of 10200 square centimeters, and determining the electrode diameter, the concentric circles, the hearth diameter and the electrode spacing; c, designing the potential gradient according to the voltage ranging from 1.3 V to 1.35 V, and determining the current-to-voltage ratio and d, making the submerged arc furnace according tothe capacity of the submerged arc furnace and the calculated hearth diameter, hearth depth, concentric circles, electrode diameter, electrode spacing and protective cover height, and the natural powerfactor can reach 0.9. The defects of an existing submerged arc furnace in the design method are overcome, and the gap that the power factor of the submerged arc furnace can reach 0.9 from the beginning of design is filled up.

Description

technical field [0001] The invention relates to a method for designing a technology package of an electricity-saving submerged arc furnace. Background technique [0002] Submerged arc furnace is also called electric arc furnace or resistance electric furnace or electric heating furnace (calcium carbide furnace). It is mainly used for reducing smelting ores, carbonaceous reducing agents and solvents and other raw materials. It mainly produces ferroalloys such as ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, silicon-manganese alloy, etc. It is the production equipment for important industrial raw materials in the metallurgical industry and chemical raw materials such as calcium carbide. Its working feature is to use carbon or magnesia refractory materials as the furnace lining and use self-cultivating electrodes. The electrode is inserted into the furnace material for submerged arc operation, using the energy and current of the arc to pass through the furnace mat...

AI Technical Summary

Problems solved by technology

The cost of compensation equipment is high, and there are many problems. Compensation power consumption and electrolysis aging are fast, and there are many problems of serious waste pollution in the later stage of electrolysis.

[0013] That is to say, the defects existing in the existing submerged arc furnace itself cannot be avoided, and can only be compensated through later compensation or transformation. It only basically meets the requirements, and cannot achieve the goal of real energy saving and efficient production