METHOD OF CHARGING METALLIFEROUS MATERIAL INTO A SMELTING-GASIFICATION ZONE

摘要

PURPOSE: A method for treating a fine particular metal medium without briquetting and a method for preventing the supplied fine particle from being discharged in a complete reduction state by a reducing gas being generated in a smelting-gasification unit are provided. CONSTITUTION: In a method of charging metalliferous and carboniferous materials that contain a proportion of fines and are at least partially reduced into a smelting-gasification unit (10) in which a smelting-gasification zone (11) is maintained, the metal carriers and the carbon carriers are introduced into the smelting-gasification unit (10) above the smelting-gasification zone (11),and sink down to the smelting-gasification zone (11), and migrate through it, forming molten metal and generating a reducing gas by coal gasification. In order to prevent the metalliferous material being partially dragged out of the smelting-gasification unit (10) during charging, and to be able to achieve a uniform distribution of the carboniferous and the metalliferous material, both the carboniferous and the metalliferous material is introduced into the smelting-gasification unit centrally, above the smelting-gasification zone (11), preferably gravitationally; a central stream (32) of metalliferous material is formed, surrounded on the outside by an enveloping stream (37) formed by the carboniferous material.