| 摘要 |
<p>The present invention provides an improved process for sintering particles composed of iron oxide, e.g., iron ore, combustible carbonaceous material, and water with a flux such as limestone optionally present and combining the principles of recyclng gases exiting from the burden adjacent the feed end back through the burden in a region toward the delivery end of a traveling grate as well as taking gases exiting from the burden adjacent the delivery end and passing them again through the burden near the feed end. Recycling of gases in this manner achieves desirable results such as reduction of the volume of gases handled, conditioning of the gases for removal of entrained particulate material by dust removing apparatus, and removal of entrained or volatilized organic as well as inorganic pollutants from the exhaust gas stream before discharge to the atmosphere. The process combines the advantages of both "hot" recycle and "cold" recycle.</p> |
