Process for recycling the filter dust in an electric arc furnace for producing steel
AssigneeIntracon S.A.R.L.
InventorBrigitte Fudala
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Abstract
The present invention relates to a process of recycling filter dust obtained during the production of steel in an electric arc furnace. Filter dust is injected and mixed with the smalls of carbon containing material in the slag or at the interface between the slag and the molten metal bath in the melting tank. The process of the invention also improves the degree of efficiency of the foaming of the slag while increasing the profitability of steel production.
Claims14
A process for recycling filter dust obtained during the production of steel comprising the steps of obtaining the filter dust from a furnace;
- mixing said filter dust with carbon containing material to form a mixture, injecting said mixture of filter dust and carbon containing material in a melting tank wherein the melting tank is that of an electric arc furnace and said mixture is injected in the slag during the slag foaming operation, thereby improving said foaming.
A process for recycling filter dust obtained during the production of steel comprising the steps of obtaining filter dust from a furnace;
- mixing said filter dust with carbon containing material to form a mixture, injecting said mixture of filter dust and carbon containing material in a melting tank wherein the melting tank is that of an electric arc furnace and said mixture is injected at the interface between the slag and the molten metal bath during the slag foaming operation, thereby improving said foaming.
Dependencies are inferred from the claim text.