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意大利冶金公司自1976年引进了无钟顶装料技术,并于同年6月首先用在塔兰托1号高炉上。如今该公司的所有高炉都以此技术操作。除了巴尼奥利5号高炉(工作容积1676m~3)采用单料斗中心给料和齿轮箱用水冷却外,其他高炉皆设有两个并列料斗和以氮气冷却的齿轮箱。
Italian Metallurgical Company introduced the technology of bellless top loading since 1976 and was first used on the Taranto 1 blast furnace in June of the same year. All of the company’s blast furnaces now operate with this technology. In addition to Bagnooli’s No. 5 blast furnace (1676m3 working volume), a single hopper center feed and gearbox water cooling are used. Other blast furnaces are equipped with two parallel hoppers and a gearbox cooled with nitrogen.