Arc Furnace No-Slag Steel Production Technology
Arc furnace is a kind of furnace widely used in steelmaking, which has the advantages of high temperature, high thermal efficiency, fast thermal speed, and uniform thermal field. With the development of metallurgy, the application range of arc furnace is also constantly enriched. Especially in recent years, with the continuous improvement of metallurgical technology, arc furnace has made an important contribution to the development of no-slag steel production technology.
No slag steel production technology is a technology that separates S, P and other impurities during steelmaking and reduces the amount of steel slag. In this process, arc furnace plays an irreplaceable role. Under the temperature of its high thermal field, the impurities such as S, P and other impurities in the molten steel are quickly stimulated and easily removed. In the meanwhile, non-metallic inclusions in the liquid steel can also be removed, so as to reduce the generation of steel slag.
In the process of arc furnace no-slag steel production technology, air separation membrane degassing is usually used. In this way, carbon, oxygen and nitrogen in molten steel can be separated from each other, which helps to reduce the content of nitrogen and oxygen in molten steel. This can not only reduce the amount of steel slag, but also ensure the quality of steel.
At the same time, in the production process of no-slag steel, desulfurization and dephosphorization technology also plays a great role. In this production process, the arc furnace can effectively remove sulfur and phosphorus, reduce the amount of slag and improve the quality of steel. The most important thing is that the rate of desulfurization and dephosphorization achievable by arc furnace is quite high, which can reach more than 95%.
In addition, in the production of no-slag steel, the arc furnace is also used to reduce the nitrogen content of molten steel. In the production process, arc furnace can effectively reduce the nitrogen in the molten steel by using nitrogen protecting agent and other methods. The nitrogen content of molten steel can be further reduced by combining the arc furnace with membrane degassing technology.
All in all, arc furnace has played an important role in no-slag steel production technology, greatly improving the production efficiency of no-slag steel and reducing the cost of production. Therefore, the application of arc furnace in no-slag steel production is an important measure to achieve high quality and efficient production.
