Date: 2025/10/23
Category: Metallurgical encyclopedia terms
Views: 10
The molten steel is continuously cast into steel billets, which are then rolled into finished steel products of various shapes and sizes. Iron and steel integrated enterprises adopting the blast furnace-converter steel production process are generally equipped with a coking plant and corresponding chemical plants. Some enterprises also have additional downstream processes, such as surface treatment, cold rolling, cold drawing, and heat treatment. Before the 1970s, the process composition of the blast furnace-converter production process was: blast furnace → converter → ingot casting → blooming/breaking down → steel rolling to finished products. Later, driven by technological progress and integrated process optimization, the process structure of the blast furnace-converter steel production process gradually evolved into a flow consisting of blast furnace ironmaking → hot metal pretreatment → converter steelmaking → secondary refining → continuous casting and rolling.
The advantages of the blast furnace-converter steel production process are: large production scale and strong capacity, output of substantial energy such as gas, accompaniment with a variety of useful by-products, and ability to absorb large amounts of social waste. Its main disadvantages include: long process flow, high consumption of raw materials and energy, large greenhouse gas emissions, high pollutant discharge, high and complex requirements for plant construction conditions, large investment, large land occupation for production processes, and low production flexibility.
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