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A New High Quality Charge Used for EAF

Jian Zhang

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Abstract

In order to solve the problem of scrap shortage, especially high quality scrap, a new substitute for scrap or DRI has been developed. The decarbonization mechanism of granular pig iron has been analyzed, and the technical process and decarbonized granular pig iron have been evaluated. The research results showed that the decarbonized technique is superior to direct reduction process in product quality, construction investment, operation flexibility, production efficiency etc. Decarbonized granular pig iron not only can be used as conventional scrap but also can be charged into EAF as high purity burden equivalent to DRI and heavy scrap.

About this research paper

What this paper is about

In order to solve the problem of scrap shortage, especially high quality scrap, a new substitute for scrap or DRI has been developed. The decarbonization mechanism of granular pig iron has been analyzed, and the technical process and decarbonized granular pig iron have been evaluated. The research results showed that the decarbonized technique is superior to direct reduction process in product quality, construction investment, operation flexibility, production efficiency etc. Decarbonized granular pig iron not only can be used as conventional scrap but also can be charged into EAF as high purity burden equivalent to DRI and heavy scrap.

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Available abstract

In order to solve the problem of scrap shortage, especially high quality scrap, a new substitute for scrap or DRI has been developed. The decarbonization mechanism of granular pig iron has been analyzed, and the technical process and decarbonized granular pig iron have been evaluated. The research results showed that the decarbonized technique is superior to direct reduction process in product quality, construction investment, operation flexibility, production efficiency etc. Decarbonized granular pig iron not only can be used as conventional scrap but also can be charged into EAF as high purity burden equivalent to DRI and heavy scrap.

Key concepts: Scrap, Pig iron, Economic shortage, Flexibility (engineering), Iron ore, Waste management, Materials science, Metallurgy

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