| 摘要 |
<p>The invention relates to a method and a device for extracting iron by direct reduction, characterized in that the device has a separate reduction chamber in which the carbon is gasified and the iron oxide is reduced in close proximity, and a separate combustion chamber in which surplus reduction gases are burned and heat energy is yielded. According to the invention, the hot combustion gases pass on their heat energy to the reduction gases in a heat exchanger, so that this energy is transferred to the reduction gases effectively. The reduction gases are force-circulated through the heat exchanger and through the carbon /bed of ore for this purpose.</p> |
