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本文介绍了固体颗粒冲击、机械搅拌、转鼓粒化、离心粒化和风淬等国外的高炉炉渣余热回收系统,对我国应用高炉炉渣余热回收处理技术的现状进行了总结。在比较国内国外同类技术的优缺点后,指出基于离心粒化技术的余热回收系统具有粒化性能优异、回收效率高等优点,据此认为有必要进一步研究该系统运行能耗、系统稳定性和控制参数以及渣粒的处理能力和粒径的均匀性等问题,以尽早实现商业化应用。
This paper introduces foreign blast furnace slag heat recovery systems such as solid particle impact, mechanical agitation, drum pelletization, centrifugal granulation and air quenching, and summarizes the status quo of applying waste heat recovery technology in blast furnace slag in China. After comparing the advantages and disadvantages of similar technologies at home and abroad, it is pointed out that the waste heat recovery system based on centrifugal granulation technology has the advantages of excellent granulation performance and high recovery efficiency. Therefore, it is necessary to further study the system energy consumption, system stability and control Parameters as well as the handling capacity of slag particles and particle size uniformity and other issues, to achieve commercial applications as soon as possible.