why does electric arc furnace steelmaking cost so much electricity? -凯发公司

it is believed that no one has ever wondered why electric arc furnace steelmaking costs so much electricity. today, we invite electric arc furnace manufacturers to see why electric arc furnace steelmaking costs so much electricity!

1： raw material conditions.

scrap steel for electric arc furnace steelmaking, because raw materials require light and thin materials, briquettes, etc. during feeding, it is easy to cause high material and hot shutdown, resulting in large heat loss. in case of insufficient primary charging, secondary charging is required. in some cases, there are three times of charging, which also increases the heat loss. each additional charge (with an average charging time of 5min) will increase the power consumption of about 7-12kwh / t. in addition, after the cleaning of raw materials, it is found that c and p are high. when entering the oxidation stage, the removal of c and p will take longer time and higher energy consumption.

2： operator skills.

the electricity consumption in the melting period accounts for 60% - 70% of the total electricity consumption. after melting, it is mainly a waste of electric energy. the common phenomenon is the blind flow of slag in the dephosphorization process of oxidation stage, which wastes a lot of lime and energy.

3： the influence of objective conditions.

in the smelting process, due to the lack of electric energy, there is a sudden power failure. after a long time, the molten steel needs to be melted again after cooling and solidification, which wastes a lot of electric energy.

4： other accidents.

if the operator operates improperly, a large amount of heat will be lost in the process of electrode treatment. during the reduction period, if the original is taken back and the composition is found to be unqualified, secondary oxidation must be carried out, which will also consume a lot of heat energy. during smelting, the coal oxygen burner leaks water and the melting aid is interrupted; when hanging materials on the furnace wall, the furnace cover shall be unscrewed, which will delay the smelting time and increase the heat loss to varying degrees.

well, the above is the cause analysis of electric arc furnace power consumption introduced by the electric arc furnace manufacturer. for more information about electric arc furnace, please pay attention to the official website: