日本八幡钢铁公司目前有7座碱性吹氧转炉生产,年产钢锭380万吨以上,约为该公司钢锭总产量的50%。该公司的洞冈L-D工厂和户畑第一L-D工厂都安装有余热锅炉和湿式集尘器,它们分别于1 957年9月和1959年9月开始使用。但是,这两种装置都很大,要求高而大的厂房,因而不可避免地增加基建投资。按普通的操作方法,转炉内产生的合CO较高的气体借从炉口上面进入的空气以及鼓入的二次空气燃烧。在用余热锅炉回收了废气的潜热,从而使其冷却 At present, Japan’s Yahata Steel Co., Ltd. produces seven basic oxygen blowing furnaces with an annual output of more than 3.8 million tons of ingot, which is about 50% of the total output of the company’s ingot. The company’s Dong Gang L-D factory and Hokkien first L-D factory are equipped with waste heat boilers and wet dust collectors, which were in September 1957 and September 1959, respectively. However, both of these devices are large and require tall and large plants, thus inevitably increasing their capital investment. According to normal operation method, the gas with high CO generated in the converter is burnt by the air entering from the top of the furnace mouth and the secondary air blown in. The waste heat is recovered from the waste heat boiler, allowing it to cool down