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What are the main characteristics of electric arc furnace?
Updated: 2022-04-29 Attention:
Electric arc furnace takes electromagnetic energy as the key electric energy. The waste steel materials are melted in the form of arc radiation source, temperature heat convection and heat conduction. In most of the time when the charge melts, the high-temperature pyrogen is surrounded by the charge, and the thermal damage caused by high-temperature organic waste gas is relatively less, so the thermal efficiency is higher than that of other steelmaking equipment such as steelmaking furnace. In addition, the electric heater is very easy to control the temperature accurately, and the heating operation can be realized under all conditions such as air oxidation atmosphere or recovery atmosphere, natural pressure or vacuum pump according to the processing process regulations.
The electric arc furnace steelmaking process is short, the machinery and equipment are simple, the operation is convenient, it is easier to control environmental pollution, less infrastructure, and the total floor area is small. It is not necessary to rely on the complicated steelmaking system software like converter steelmaking.
Electric arc furnace ironmaking has strong adaptability to furnace charge. It takes scrap iron as the key raw material, but at the same time, it can also use solid and liquid iron raw materials such as molten steel (molten steel of ironmaking blast furnace or cupola), sponge iron (DRI) or pressing block (HBI), cast iron block and so on.
Because the atmosphere controllability in EAF converter and the operation of coal ash adjustment or replacement are relatively smooth, and the complicated processing process operations in various periods such as melting, carburizing, dephosphorization, degassing, impurity removal, temperature control and composition adjustment (alloying) can be carried out in the same set of operating system software. Electric arc furnace ironmaking can be manufactured at intervals and can sensitively replace the types of production and manufacturing in a certain area. In addition, modern electric arc furnace can also be used in many auxiliary electric energy sources, such as injecting heavy (light) oil, pulverized coal, gas and so on. Therefore, EAF steelmaking process has strong adaptability, convenient operation and universal application.
Electric arc furnace can not only smelt heat-resistant cast iron with low phosphorus, sulfur and oxygen content, but also manufacture all kinds of heat-resistant cast iron and carbon steel, such as rolling bearing steel, stainless steel, acid resistant steel, alloy steel, steel for welders, wear-resistant steel, permanent magnet materials and their unique aluminum alloys.
Well, for more information about electric arc furnace, please pay attention to the official website: http://www.apple21.cn/
Key words: submerged arc furnace DC submerged arc furnace DC electric arc furnace
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