On May 16, 2003, ironworks 5 blast furnace because the reason such as equipment ageing, cooling equipment is abrupt damaged, a large number of soft hourglass enter furnace inside.

• 2003年5月16日,炼铁厂五高炉由于设备老化等原因,冷却设备突然破损,大量软水漏入炉内。紧急休风处理后,炉缸内的渣铁变稠及凝固,进而铁口无渣铁。