| 摘要 |
<p>A method known per se, for operation of a smelting oven comprises charging a smelting zone with feedstuffs, fuel, a first oxidising agent and a second oxidising agent, whereby at least the second oxidising agent is injected into the smelting zone at supersonic speed. The aim of the invention is to describe a method, by means of which the smelting process in a smelting furnace, in particular a shaft furnace with at least one injector for supersonic injection of an oxidising agent, may be flexibly adjusted to meet demand. The aim of the invention is achieved, whereby the injection of the second oxidising agent, during at least one part of the process, is injected in a pulsed manner, with a temporally repeating series of an injection phase and a rest phase.</p> |
