Electricity-saving method for ore furnace

Abstract

The invention relates to an ore furnace electricity-saving method comprising the following steps: a. performing optimum setting to parameters of various types of furnace, the setting also comprising adjusting of the melting chamber diameter, controlling of electrode gaps, therefore, obtaining a practical and scientific configuration of network voltage and the equipment itself; b. improving current work utilization ratio by using a voltage work method and the technical requirement, increasing the ratio of voltage and current, maintaining the ratio of voltage and current at 1:280, reducing the generation of impedance and inductive reactance of ore furnace, and obtaining a power factor over 0.9; c. improving transmission capacity of the short net, namely, increasing the control voltage and reducing the current.By using the method, production energy-consumption can be reduced effectively, the power factor can be improved and the quality of products can also be improved.

Description

technical field [0001] The invention relates to a power-saving method for a submerged arc furnace. Background technique [0002] Submerged arc furnace is also called electric arc furnace or resistance electric 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 and silicon-manganese alloy, which are 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 material, and the energy generated by the resistance of the furnace material to smelt metal, feeding successively, and interm...

AI Technical Summary

Problems solved by technology

However, due to the high cost and the harsh working environment, the service life is greatly affected

The reactive power compensation at the low-voltage side of the short-network also brings about an increase in harmonics, so measures must be taken to suppress the 3rd to 7th harmonics, thereby increasing the investment and prolonging the investment recovery period. At the same time, the follow-up maintenance costs are high and the comprehensive benefits are not good.