Reduction of solid iron ore to hot metallic iron in a rotary kiln-flash heater-rotary reactor complex
Abstract
Abstract A METHOD IS DISCLOSED OF REDUCING SOLID IRON ORE PARTICLES TO HOT METALLIC IRON IN A CONTINUOUS SYSTEM INVOLVING A ROTARY KILN AND A FLASH HEATER AND A ROTARY REACTOR IN SERIES. IRON ORE PARTICLES, SUITABLE FLUXES FOR REMOVING IMPURITIES FROM IRON, AND SOLID FUEL PARTICLES ARE FED IN A CONTINUOUS STREAM OF SMALL VOLUME THROUGH THIS APPARATUS COMPLEX WITH THE OPEARATION SO CONTROLLED THAT THE IRON OXIDE IS REDUCED STEP BY STEP AS IT PASSES THROUGH THE SERIES OF APPARATUS ELEMENTS, WITH THE TEMPERATURE AND CHEMISTRY PROPERLY CONTROLLED AT EACH STEP SO THAT THE END PRODUCT DISCHARGED FROM THE ROTARY REACTOR IS MOLTEN IRON CARBURIZED TO ABOUT THREE OR FOUR PERCENT CARBON. THE INVENTION MAKES IT POSSIBLE TO UTLILIZE RELATIVELY INEXPENSIVE EQUIPMENT, OF MODEST DIMENSIONS, AND CAPABLE OF SIMPLE MAINTENENCE, WHILE PRODUCING A CAREFULLY CONTROLLED END PRODUCT.
Inventors
- 👤 Norman P Goss
Bibliographic Details
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