邯钢7^#高炉失常炉况的分析与处理

Analysis and Treatment of Handan Steel's No.7 BF Disorder Operation

邯钢7#高炉炉况恢复期间,因冷却壁破损多、局部冷却壁脱落、长期风量小以及风口上翘等客观因素,在外部发生事故、炉内大量减风的情况下容易引发失常;在处理过程中,布料溜槽脱落,加大了恢复难度。针对炉内漏水量大、渣铁流动性差和炉型不规则等影响因素,采取控制漏水、配加锰矿、堵风口和安装微型冷却器等综合措施,使处于危险状态的高炉扭转局面,产量恢复到正常水平。

During the period of furnace condition resumption of Handan Steel＇ s No.7 BF, disorder operation occurred easily when the production accident happened or when much blast air decreased because of cooling stave damaged, part of cooling stave pulled-off, long time small air blasting and some tuyeres rising up. In the dealing with the bad conditions, the difficult of resumption was increased with the distributing chute damaged. In order to deal with much water leaking into the furnace, poor flow quality of melting slag or hot iron and the irregularity of the furnace shape, a series of measures were adopted： control cooling water leaking into the furnace, using manganese minerals, blocking tuyere, installing small cooler etc, at last the BF took out of the dangerous conditions and the productivity reached regular level.