日本某公司开发成功一种适合城市使用的可利用多种原料和燃料的节能型化铁竖炉。它以吹氧高炉的技术为基础，可熔化多种原料如废钢铁、冷铁块和还原铁等；燃料除使用部分焦炭外，还可使用煤粉和废粒状塑料。经过一个半月的工业试验，效果较好。试验炉内部容积为Zm’，下部... A company in Japan has successfully developed an energy-efficient iron shaft furnace that can be used for a wide range of urban areas and uses a variety of raw materials and fuels. Based on the blast furnace technology, it can melt a variety of raw materials such as scrap steel, chilled iron and reduced iron, etc. In addition to the use of some coke fuel, pulverized coal and waste plastic can be used. After a month and a half of industrial tests, the effect is better. Test furnace internal volume Zm ’, the lower part ...