Papers by Keyword: Converter Steel-Making

Abstract: In order to solve the problem of long melting time and low yield rate of carbon while blind coal is used to recarburize, a new carburant is developed to replace blind coal. Experiment results show that compared with the blind coal, the new carbon-manganese alloy carburant obtains a high smelting velocity, and the average carbon yield rate is 92.95%, which increase by 7.67%, the yield rate of manganese is 93.31%, which a little higher than other normal manganese alloys. After carbon-manganese alloy is used to recarburize, logistics time and power consumption are saved and the cost of steel-making is reduced by 1.05 ¥/t. In addition, there is little effect on the quality of steel.

Abstract: Analysing the function of steel scrap and understanding its influence on development, are the main problems which interests the steel producers of the world. To create such an essay, the analysis of the actual developments of the quantities, the qualities and compositions of the used scrap types should be continuously monitored in the world’s steel industry. Series of local experiments and evaluating statistics focusing on process optimization by scrap have been done at ThyssenKrupp Steel. This includes the current study based on the records of scrap charges. In the following paper the development of an indirect scrap evaluation algorithm will be discussed, compared with results of the common ways.