摘要
烧结矿的多孔结构形成过程中,燃烧熔融带上的烧结矿荷重会引起气流阻塞,导致生产率降低及成品烧结矿质量差。为了减轻重力的影响,一种新的烧结技术——支架支撑烧结应运而生。通过在料层内安装支架来支撑烧结矿,进而减少由重力和抽风所引起的料层收缩,使下部料层获得较高透气性。本文通过烧结杯实验,考察了安装不同尺寸支架对烧结指标和烧结矿冶金性能的影响。实验表明,应用尺寸为300×100 mm的支撑板,烧结利用系数、烧成率、成品率、转鼓强度等指标是各组实验中最好的,尽管还原度略有下降,但仍可满足生产要求。
During the porous structure formation of sinter,the sinter load at the sintering combustion-melting zone causes air flow block resulting in low productivity and poor quality sinter. A new kind of sintering technology—stand-support technology is developed at the right time in order to alleviate the gravity influence. By installing stand-support in the material layer to support sinter,high permeability of the lower material layer can be obtained as a result of reducing material layer shrinkage due to gravity and suction. Through the sintering pot experiment,the effect of installation of different size of stand-supports on sintering index and metallurgical properties of sinter are investigated. The results show that,with the application of the 300 × 100 mm support plate,the sintering productivity,the sinter cake yield,the product yield and the drum index are the best in each group of experiment,although the reducibility decreases slightly,it can still meet the production requirements.
出处
《烧结球团》
北大核心
2014年第6期7-11,21,共6页
Sintering and Pelletizing
基金
国家自然科学基金(51174023)
关键词
支架支撑烧结
透气性
烧结指标
冶金性能指标
stand-support sintering
permeability
sintering index
metallurgical properties
