A process for the pig iron production in a blast furnace with a maximum use of reactor and minimizing the consumption of coke

摘要

A process for the pig iron production in a blast furnace with a low consumption of coke reactor with the use of iron, which, together with oxygen enriched hot blast air or technical oxygen via the blast furnace are fed to the blow molding in the frame,characterized by the,– that the highly carbonaceous replacement reduction means of carbon - and hydrogen-containing feed materials by thermal pretreatment at temperatures between 300 and 1200°C, preferably between 400 and 600°C. are produced, and a ratio of weight percent by weight of carbon to hydrogen of & 20: 1, preferably 40: 1 and the relation of the highly carbonaceous replacement reduction means for oxygen-enriched hot blast air or technical oxygen be selected in such a way that the reaction temperature in the stoichiometric conversion of the highly carbonaceous replacement reduction means, with the oxygen-enriched hot blast air or technical oxygen to carbon monoxide co and hydrogen h₂, that is to say without that in the sums reaction co₂ and h₂O are formed, in the region of the even without the addition of iron replacement reduction means plant-customary the form of enga temperature of 1800°C, preferably in the range from 2000 – 2200°C.– in that the..