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当前高炉密闭循环冷却系统采用的冷却介质有软水和纯水两种.纯水处理设施的投资比脱碳酸盐软水设备的略高,而比一般软水设备高50%,但从高炉炉体冷却效果的改善、冷却构件使用寿命的延长等综合经济效益考虑,还是纯水为好.笔着认为,高炉密闭循环冷却系统应尽可能采用纯水作为冷却介质;并提出如将密闭循环冷却系统出水的温度控制在80℃以上,就可将其部分热能予以利用.利用的方法有两种:一是采用中间介质法热水发电;二是双级吸收式制冷.
Currently, closed-loop cooling systems for blast furnaces use two kinds of cooling media: soft water and pure water, while investment in pure water treatment facilities is slightly higher than that of soft-water facilities for decarbonation and 50% higher than that of normal soft-water facilities. However, The improvement of the effectiveness of cooling components, such as the extension of the service life to consider the overall economic benefits, or pure water is good.I think the blast furnace closed-cycle cooling system should be as pure as possible cooling water as the cooling medium; and proposed such as the closed-loop cooling system water Of the temperature control above 80 ℃, you can use some of its heat.Using two methods: First, the use of intermediate media method of hot water power generation; Second, two-stage absorption refrigeration.