METHOD FOR PRODUCTION OF PIG IRON IN A BLAST FURNACE WITH INTRODUCTION OF REDUCING GAS INTO THE BLAST FURNACE SHAFT

摘要

According to the invention, reducing gas is blown into the lower blast furnace shaft through tuyeres arranged below the belly and/or waist. In order to avoid the problems occurring on injection of technical gases, the reducing gas for injection is produced by the partial oxygenation of particulate carbon supports or highly-reactive liquid or gaseous hydrocarbons.