福建省三明钢铁厂的１号高炉投产后因用钒钛渣护炉，吨铁用２２．６千克。１９９８年１－８月份吨铁用６．６５千克，但钒钛渣包括运费每吨很高，护炉的成本过高，针对此现象，该厂的技术人员千方百计探索出新的护炉方法－－在炉底增设水冷设施，而不再用钒钛渣护炉。今年１～ Fujian Province Sanming Iron and Steel Plant No. 1 blast furnace put into operation after the use of vanadium and titanium slag retaining furnace, iron and iron with 22.6 kg. From January to August 1998, 6.65 kg of iron was used per tonne of iron but vanadium and titanium slag, including the high cost per ton of freight, and the high cost of protecting the furnace. In view of this, technicians in this plant tried their best to find out the new method of protecting the furnace - - Adding water-cooled facilities to the bottom of the furnace instead of using vanadium-titanium slag to protect the furnace. 1 ~ this year