高炉原燃料分级布料过程及时序  

Graded charging process and time series of raw materials for blast furnaces

作　　者：赵宏博[1,2] 滕召杰[1] 程树森[1] 唐文权[3] 

机构地区：[1]北京科技大学钢铁冶金新技术国家重点实验室,北京100083 [2]北京科技大学冶金与生态工程学院,北京100083 [3]中冶京诚工程技术有限公司,北京100176

出　　处：《北京科技大学学报》2013年第6期714-719,共6页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金资助项目(60872147);中央高校基本科研业务费专项(FRF-TP-12-029A)

摘　　要：针对目前高炉原燃料质量恶化导致料柱压差升高的现状,寻求通过布料改善料柱透气性的方法.研究表明:不同粒径颗粒的混合会减小散料层的空隙度,降低透气性;减少颗粒混合,可以提高空隙度.为了改善散料层的透气性,研究了原燃料按颗粒大小分级布料的方式、不同粒级炉料的装料顺序及周期,同时分析了串罐、两并罐及三并罐无钟炉顶的布料特点.研究结果对降低高炉料柱压差及保障高炉稳定顺行有重要作用.To counter the condition that quality deterioration of raw materials causes the pressure drop in a blast furnace increasing, new burden charging methods are sought to improve the permeability. Study results show that mixing different size particles can decrease the voidage and thus worsen the permeability, but decreasing the particle mixing can increase the permeability. In order to improve the permeability, the grading patterns, the sequence and period for charging different sizes of raw materials were studied in turn. And also the burden charging characteristics of cascade hoppers, two parallel hoppers, and three parallel hoppers were researched. The study result is very important in decreasing the pressure drop and keeping the BF stability and smooth.

关 键 词：高炉 布料 时序 压差 粒度 

分 类 号：TF543.3[冶金工程—钢铁冶金]