Numerical simulation of temperature field in sintering process and influence of sintering end point parameters
Sintering is an indispensable link in the whole iron and steel industry production,the change of parameters in the sintering process will directly affect the quality and output of sinter.Taking the 150 m2 sintering machine of a steel plant as the research object,the simulation software Fluent was used to simulate the sintering process parameters.By establishing a suitable physical and mathematical model,and based on on-site actual data,the temperature field changes in the material layer were simulated.Single factor analysis was used to study the effects of carbon content,porosity,material layer thickness,and suction negative pressure on time required to reach the sintering end point,and the optimal process parameters were determined.The research results show that increasing the carbon content shortens time required to reach the sintering end point,and the optimal sintering end point position is achieved when the carbon content is 4.23 mass％.When the porosity of the layer increases,time required to reach the sintering end point becomes shorter,and the sintering end point position is the best when the porosity is about 0.49.When the thickness of the material layer increased,time required to reach the sintering end point is extended.When the thickness of the material layer reaches 734.13 mm,the maximum vertical sintering speed reaches 0.321 mm/s.By increasing the suction negative pressure,time required to reach the sintering end point will be shortened.When the suction negative pressure reaches 15 kPa,the vertical sintering speed is optimal.Under the optimized process parameters,the quality and output of sintered ore are improved.
sinterFluent numerical simulationtemperature field simulationheat and mass transfersintering end point parameter
万方数据
维普
