It is possible for small equipment to carry our large - scale production ; 5 . there are rotational flow pieces inside the drying chamber . it is used to control the moisture and granule of raw material to the needed level 干燥室上部加装淘析环及旋流片可以控制出口物料的粒度及湿度，以达到不同物料的终水份粒度的要求。
In this paper , the processing condition of freeze - drying snack dumpling was studied , and the parameters of cooling rate , material volume , vacuum , and temperature were determined based on drying time and recovery ratio of water absorption 摘要通过试验对速食水饺冷冻干燥工艺条件进行了初步研究，并以干燥时间和复水比为指标确定了冷冻干燥工艺中的预冻速率、单位面积装料量、干燥室真空度、加热板温度等工艺参数。
Hot air cnters into stirring and crushing and drying chamber from the bottom of drier with suitable atomizing speed . it exerts strong shearing , blowing , floating and rotating effect to raw material . therefore raw material is granulated through centrifuge , shearing , impacting and friction effect 热空气由入口管以适宜的进风速度从干燥机底部旋转进入搅拌粉碎干燥室，对物料产生强烈的剪切、吹浮、旋转作用。
