Erdermir公司2号高炉是1987年由日本NKK设计的,原采用托圈支撑式,炉腹的炉壳为园筒形,进行喷水冷却。这种炉腹炉壳出现过许多问题。例如:炉衬寿命短,炉腹区的最长使用时间不到五年。由于停炉过频及耐火炉衬修整用喷补料花费大,每个炉役的换衬费用偏高。由于炉腹及风口炉壳喷水,劳动环境既无舒适感,也确实不安全。 Erdermir’s No. 2 blast furnace was designed by Japan’s NKK in 1987 and was originally of a toroidal support with a bellows-shaped shell that was spray-cooled. There have been many problems with this hearth shell. For example: lining life is short, the lumbar area of ​​the longest use of time less than five years. As the furnace over-frequency and refractories lining refinishing expense, each furnace service lining high cost. Due to the bosh and tuyere shell spray water, the working environment neither comfort nor indeed unsafe.