冶金部分别于1983年6月8日和6月14日在马钢和杭钢召开了热管及回转式予热器回收热风炉烟气余热的鉴定会。参加会议的有冶金部钢铁司、各工厂、科研设计单位、高等院校以及有关省冶金局的代表。会议期间,通过大会介绍,现场参观,小组讨论,最后作出鉴定。与会代表一致认为: 一、马钢在一厂7号高炉(容积100米~3)建成以热管换热器为主体的热风炉烟 Metallurgical Department were held in June 8, 1983 and June 14 in Maanshan Iron and Steel held a hot tube and rotary preheater heat recovery furnace flue gas waste heat appraisal meeting. The meeting was attended by the Metallurgical Department of Steel Division, the factories, research and design institutes, institutions of higher learning and representatives of the provincial Metallurgical Bureau. During the meeting, through the introduction of the General Assembly, on-site visits, group discussions, and finally make an appraisal. The participants agreed that: First, in a plant No. 1 Magang blast furnace (volume 100 m ~ 3) to build heat pipe heat exchanger as the main hot-blast stove