高炉布料溜槽长寿化的离散元模拟研究  

Discrete Element Simulation Study on Service Longevity of Blast Furnace Distributing Chute

作　　者：滕杰 郭庆 郭柄江 赵磊 马学东[2] TENG Jie;GUO Qing;GUO Bing-jiang;ZHAO Lei;MA Xue-dong

机构地区：[1]山东天承矿业有限公司,山东莱州261400 [2]辽宁科技大学机械工程与自动化学院,辽宁鞍山114000

出　　处：《有色冶金节能》2020年第5期38-43,共6页Energy Saving of Nonferrous Metallurgy

基　　金：国家自然科学基金项目(编号:5177052111)。

摘　　要：为延长高炉布料溜槽的使用寿命,依据粉体力学理论设计了一款积料式布料溜槽,并对该溜槽和光板直溜槽进行了离散元模拟研究。结果显示:1)积料式高炉布料溜槽在料流冲击区下方能形成稳定的积料,大幅减轻了料流对溜槽底板的冲击及磨损;2)对比积料式溜槽和光板直溜槽,前者所受的料流冲击力是后者的10.1%~17.2%,前者冲击区的颗粒滑动速度是后者的29.1%~33.4%;3)积料式溜槽具有"料打料"及"料磨料"的效果,所以抗冲击和耐磨损性能好,从而可以延长使用寿命。In order to prolong the service life of the blast furnace distributing chute,a kind of accumulated material-type distributing chute was designed based on powder mechanics theory,and a discrete element simulation study on the accumulated material-type chute and smooth-plate straight chute was carried out.The results had shown that:1)the accumulated material-type chute could form a stable accumulation of material under the impact area of material flow,which reduced the impact and wear of material flow on the chute bottom greatly;2)comparing the accumulated material-type chute and smooth-plate straight chute,the impact force of the former was 10.1%~17.2%of the latter,and the sliding speed of the particle in the impact area of the former was 29.1%~33.4%of the latter;3)the accumulated material-type chute had the effect of material feeding and material grinding,so its impact resistance and wear resistance were good,which made the service life of the chute was prolonged.

关 键 词：高炉布料溜槽 长寿化 离散元模拟 积料式溜槽 抗冲击 耐磨损 

分 类 号：TK321.3[动力工程及工程热物理—热能工程]