宝钢1号高炉投产后,经常出现炉子下部不活性的问题,并已成为高炉稳定、顺行的主要障碍.针对高炉下部不活性产生的原因,采取了相应对策,主要是改善炉子下部热交换条件和降低边缘o/c值.经过一年来的努力,初步掌握了防止及处理下部不活性的方法,使其影响大大减小.本文简述高炉下部不活性出现时的象征、产生原因及处理方法. After the Baosteel No 1 blast furnace is put into operation, the lower part of the furnace often has the problem of inactivity and has become the main obstacle to the stable and forward operation of the blast furnace.According to the reasons for the inactivation of the lower part of the blast furnace, countermeasures are taken to improve the heat exchange conditions And reduce the edge o / c value.After a year of efforts, initially mastered the prevention and treatment of the lower inactivity of the method, so that the impact is greatly reduced.This article briefly describes the lower part of the blast furnace when the symbol of the occurrence, causes and treatment methods .