粉煤成型过程的数值模拟  

Numerical simulation of pulverized coal forming process

作　　者：郭豪[1] 王亚杰 赵宏博 左海滨 GUO Hao;WANG Yajie;ZHAO Hongbo;ZUO Haibin(Capital Engineering&Research Co.,Ltd.,Beijing 100176,China;State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing,Beijing 100083,China;Beijing North Billion Technology Co.,Ltd.,Beijing 100102,China;Beijing Intelligent Smelting Technology Co.,Ltd.,Beijing 100041,China)

机构地区：[1]中冶京诚工程技术有限公司,北京100176 [2]北京科技大学钢铁冶金新技术国家重点实验室,北京100083 [3]北京北科亿力科技有限公司,北京100102 [4]北京智冶互联科技有限公司,北京100041

出　　处：《有色金属科学与工程》2024年第3期357-363,共7页Nonferrous Metals Science and Engineering

基　　金：中国五矿科技专项计划项目(2020ZXA01)。

摘　　要：为明确摩擦系数和成型压力对煤粉成型过程的影响,利用MSC.Marc软件定量化分析了粉煤在成型过程中非均质变化的特点,获得成型过程中的应力、密度和位移等分布参数。结果显示,随着摩擦系数的增加,最大位移逐渐变小,相对密度的均匀性减小,最大应力由6.013 MPa急剧增长到71.22MPa,极易导致型煤发生开裂。随着成型压力的增加,最大位移不断增加,相对密度略有增加,而最大应力却呈现急剧增长的趋势。因此,煤粉成型过程中应适当降低摩擦系数且不可盲目增加成型压力。To clarify the influence of friction coefficient and molding pressure on the pulverized coal molding process,the MSC.Marc software was used to quantitatively analyze the characteristics of heterogeneous change of pulverized coal in the molding process,and the distribution parameters in the molding process were obtained,such as stress,density and displacement.The results show that with the increase of friction coefficient,the maximum displacement gradually decreases,the uniformity of relative density decreases,and the maximum stress increases sharply from 6.013 MPa to 71.22 MPa,which easily causes the cracking of the briquette.Moreover,with the increase of forming pressure,the maximum displacement continues to increase,and the relative density slightly increasea,while the maximum stress shows a sharp increasing trend.Therefore,the friction coefficient should be appropriately reduced and the molding pressure should not be blindly increased during the pulverized coal molding process.

关 键 词：粉末成形 粉煤 MSC.Marc 数值模拟 

分 类 号：TQ536.9[化学工程—煤化学工程]