Optimizing of Roller Press Forming Cavity Profile Using Finite Element Simulation
Current industrial compacting and briquetting practices are largely based on trial-and-error techniques. This paper introduces a two-dimensional finite element model of briquetting process in the roller press. Compared with other modeling techniques used in the past, finite element method offers the most versatile approach because it incorporates adequate information about powder behavior,geometry and frictional conditions and offers predictions for the density distribution, the velocity field, the stress distribution, roll force and torque. More over, when the model includes elasticity, it offers predictions on the internal stress state in the briquette after its exit from the roll. This enables to perform realistic computer experiments which are helpful for establishing the forming cavity geometry and process conditions necessary to produce briquettes with the desired properties. Three forming cavity profiles are analyzed. Results from model are verified on experimental roller press and best cavity profile is recommended for briquetting of sub bituminous coal fines.
Roll Pressing Briquetting Modeling Finite element method Simulation
R.T. Dec A. Zavaliangos
K.R. Komarek Briquetting Research Inc., Anniston, USA Department of Materials Engineering. Drexel University, Philadelphia, USA
国际会议
XXIV International Mineral Processing Congress(第24届国际矿物加工大会)
北京
英文
3175-3181
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）