摘要
本文采用离心式喷雾干燥工艺制备固体聚羧酸减水剂。通过正交实验对进料液浓度、进料液温度、干燥室进/出口的风温、雾化器转速四个因素进行研究,得到了最佳的雾化干燥工艺:干燥室进/出口的风温210℃/70℃、进料液浓度40%、雾化器转速16000r/min、进料液温度50℃。通过红外光谱对喷雾干燥前后的聚羧酸结构进行分析,并通过宏观性能实验进行验证。
This paper uses centrifugal spray drying process to prepare solid polycarboxylate superplasticizer.It has been studied by orthogonal experiment with four factors： import / export air temperature of drying room,feed liquid concentration,speed of centrifugal atomizer,feed liquid concentration.The best spray drying process： import / export air temperature of drying room is 210℃/70℃,feed liquid concentration is 40%,speed of centrifugal atomizer is 16000r/min,feed liquid temperature is 50℃.We analysis the structure of polycarboxylate superplasticizer before and after spray-drying by infrared spectroscopy,and verify the conclusion through macroeconomic performance experiments.
出处
《福建建筑》
2010年第7期106-108,110,共4页
Fujian Architecture & Construction
关键词
固体
聚羧酸
离心式
喷雾干燥
Solid Polycarboxylate Centrifugal Spray drying
