Pelletizing shaft furnace was an integrated process about drying,preheating,roasting,even heating and cooling,the productivity of roasting must had an equal productivity of drying.

• 建立了导风墙-干燥床式球团竖炉的干燥、预热焙烧、均热以及冷却过程数学模型,得出了球团竖炉本体高度的计算式。