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传统的砾石层过滤床水冲渣系统虽有维护费低和较好的过滤效果等优点,但它占地大、投资高,特别是环境污染严重。之后的拉萨(RASA)法用过滤斗分离渣水,比前者有了改进,尤其是使用了带反冲板的吹制箱,显著地提高了水渣的质量,它占地较小,靠近高炉,可是因需另建渣—水浆泵站,仍存在投资高、耗电多、泵和渣浆输送管道易磨损及腐蚀、维护工作量大和运行费用高等不足。有签于此,比利时ARBED集团开发不用转鼓进行水渣动态连续过滤脱水的因巴(INBA)冲渣系统(见图1)。
Although the traditional gravel bed filter bed water flushing slag system has the advantages of low maintenance cost and good filtering effect, it occupies a large area with high investment, especially the serious environmental pollution. Subsequent LASA (RASA) method using filter bucket separation of slag water, the former has been improved, especially the use of a blow box with a rebound board, significantly improve the quality of the water slag, it covers an area smaller, close to the blast furnace However, due to the need to build a separate residue - water pumping station, there are still high investment, more power consumption, pump and slurry pipeline easy to wear and corrosion, maintenance workload and higher operating costs. In this connection, the Belgian ARBED Group has developed an INBA slag flushing system (see Figure 1) that does not require a drum for dynamic, continuous filtration and dewatering of the slag.