| Abstract Scope |
Straight grate , one of the main equipment for the oxidized pellets making, whose drying data during the process is hard to obtain. A two-dimensional unsteady mathematical model of green pellet drying straight grate process subjected to turbulent flow, which consider evaporation and condensation was developed based on porous media theory for obtain the internor mechanism of the change in the process of drying. Employed with FLUENT software and C language programming via custom code , and finally validated through the experiment. Using the mathematical model , Taking drying pellet production per unit of hot air energy consumption as optimization target, the influence of factors such as wind temperature, wind speed, the pellet layer thickness and time distribution of two drying stages on the drying effect of straight grate , was explored by orthogonal experiment method. |