摘要
本文用旋转粘度计测定了两种国产湿法磷酸氨化料浆的流变性。结果表明,含水高于50％的料浆属牛顿流体。随着料浆含水量的减少.则逐渐向假塑性流体转变,在一定剪切速率范围内,它们的流变性可用幂律方程描述。但在更高的剪切速率下又将转变成牛顿流体。本文还用实验数据计算了浓缩料浆通过蒸发器加热管的压力降。
The Theological behavior of two indigenous ammoniated phosphoric acid slurries were determined by rotating-cylinder viscometer. The authers find that when water content of slarry higher than 50% it behaves as neutonian fluid. But the slurry turns into pseudio-plastic fluid gradually along with the reduction of water content. At sufficient higher shear rate. the slurry changes into Neutonian fluid again.
基金
国家自然科学基金
关键词
磷铵
湿法磷酸
流变性
氨化料浆
ammonium phosphate slurry
viscosity
rheological characteristics
