烧结矿粘结相粘结强度特征数的研究  

Research on characteristic number about bonding strength of binding phase in sinter

作　　者：朱春恩 吴铿[1] 黄德军[1] 杜晓东[1] 

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

出　　处：《冶金能源》2017年第3期23-26,共4页Energy For Metallurgical Industry

基　　金：国家自然科学基金(51474022)

摘　　要：烧结过程中,铁矿粉粘结相与未熔含铁矿物间的粘结强度,对烧结矿的形成及强度都起着至关重要的作用。对8种不同铁矿粉烧结产生的粘结相的粘结强度进行研究,对烧结矿的形成过程进行微元选取和理想处理。测定粘结相与未熔含铁矿物两者之间的剪切力来表征粘结相的粘结强度。充分考虑不同矿粉高温特性和国内使用情况的差异,选取同化性能、液相流动性能居中,配矿占比高且应用广泛的PB粉作为基准矿粉,建立粘结相粘结强度特征数,并可作为参考指标进行指导配矿。Based on the sintering process, whether binding phase coheres unfused ferrous minerals well, it will play a vital role to the formation and strength of sinter. Studying the bonding strength of eight different binding phase, taking the way that selecting infinitesimal from the formation process of sinter and using ideal treatment method. Determining the shear force between binding phase and un-fused ferrous minerals as the bonding strength. Taking both high temperature characteristic and domes-tic usage of different iron ore powder into consideration, selecting the widely used PB powder which has medium assimilation, liquid phase fluidity and high ratio in ore blending as standard ore, and establis-hing characteristic number about bonding strength of binding phase. It can be choosed as a reference index to guide ore blending.

关 键 词：烧结矿 粘结相 粘结强度 特征数 配矿 

分 类 号：TF046.4[冶金工程—冶金物理化学]