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一、概述随着我国国民经济的飞跃发展,各部门对生铁产量、质量的要求越来越高。武钢一米七轧机工程投产以后,需要高炉提供数理足够的低硅、低硫生铁。这要求在改善入炉原燃料质量(改善粒度组成、降低含硫量等)的同时,对选择适宜的造渣制度必须给予足够的重视。造渣制度对于生铁成分的控制、热制度的稳定、炉料的均匀下降和煤气流的合理分布有很大影响。对高炉冶炼过程有影响的炉渣物理性能主要是粘度、熔化温度和脱硫能力。粘度过大,不仅影响硫从生铁向炉渣的扩散速度,而且在焦炭之间聚集的粘渣往往
I. Overview With the rapid development of our national economy, various departments have become increasingly demanding of pig iron production and quality. Wuhan Iron and the seven meters mill project put into operation, the need to provide adequate mathematical blast furnace low-silicon, low-sulfur pig iron. This requires that sufficient attention be given to selecting a suitable slagging system while improving the quality of raw fuel into the furnace (improving the grain size composition, reducing sulfur content, etc.). The slagging system has a great influence on the control of the pig iron composition, the stabilization of the heat regime, the uniform reduction of the charge and the rational distribution of the gas flow. The physical properties of the slag that affect the blast furnace smelting process are mainly the viscosity, the melting temperature and the desulfurization capacity. Viscosity is too large, not only affect the speed of sulfur from pig iron to the slag diffusion rate, but also between the accumulation of coke slag tends to