我厂高炉冷却系统是以三级水泵直接送水进行冷却的。过去由于外界电网电压变化,易于引起瞬时停电,虽时间每次只有十几秒或二十几秒钟,但由于停泵后管道内水倒回,造成水泵进入空气,纵令及时恢复送电,水泵也得重新灌引水,至少也要经过十几分钟或几十分钟才能继续供水。因此,造成风、渣口套和其他设备烧坏事故时有发生。75年5月份就因停电停水烧坏风、渣口套五十一个,烧坏热风阀 Our blast furnace cooling system is based on three pumps direct water cooling. In the past due to changes in the external power grid voltage, easy to cause instantaneous power failure, although the time every time only a few seconds or twenty seconds, but because after the pump stopped pouring water back into the water, causing the pump into the air, Have to re-irrigation water, at least after a dozen minutes or dozens of minutes to continue water supply. As a result, wind, slag mouth sets and other equipment burn accidents have occurred. 75 years in May due to power failure water burn, slag mouth set 51, burn hot air valve