CAJ | 학술논문

机械搅拌是目前加速疏水缔合聚合物溶解熟化所广泛采用的一种方法。然而，聚合物溶解是一个从多相到单相、从低黏到高黏的变化过程，单一搅拌器用于聚合物的溶解过程存在诸多的问题。本文采用适用中低黏度的翼型搅拌器（KCX）和适用高黏度的锚框式搅拌器（MS）的组合，通过实验研究了翼型搅拌器不同操作方式（上翻或下压）和锚框式搅拌器不同转速等操作工况对聚合物溶解熟化过程中的作用，并将翼型搅拌器功率的实验数据与数值模拟的结果进行了比较。研究结果表明：翼型和锚框式搅拌器在聚合物不同的溶解熟化过程中其作用是不一样的；双搅拌器的同向运行可以促进罐内的流动和整体循环，加速聚合物的溶解和熟化；采用翼型搅拌器下压操作（KCXD）与MS搅拌器同向运转操作方式最利于聚合物的溶解和熟化。
궤계교반시목전가속소수체합취합물용해숙화소엄범채용적일충방법。연이，취합물용해시일개종다상도단상、종저점도고점적변화과정，단일교반기용우취합물적용해과정존재제다적문제。본문채용괄용중저점도적익형교반기（KCX）화괄용고점도적묘광식교반기（MS）적조합，통과실험연구료익형교반기불동조작방식（상번혹하압）화묘광식교반기불동전속등조작공황대취합물용해숙화과정중적작용，병장익형교반기공솔적실험수거여수치모의적결과진행료비교。연구결과표명：익형화묘광식교반기재취합물불동적용해숙화과정중기작용시불일양적；쌍교반기적동향운행가이촉진관내적류동화정체순배，가속취합물적용해화숙화；채용익형교반기하압조작（KCXD）여MS교반기동향운전조작방식최리우취합물적용해화숙화。
Mechanical agitators are widely used in accelerating the dissolution of hydrophobically associating polymer. However,the polymer dissolution process changes from multiphase to single phase,from low viscosity to high viscosity. Many problems occur in using single agitator for polymer dissolution. In this paper,the effects of double agitators on polymer dissolution were investigated. The double agitators were composed of inner hydrofoil impeller KCX suitable for low and medium viscosity fluid and outer anchor and frame type impeller MS suitable for high viscosity fluid. Different kinds of operating conditions were also studied,such as different pumping directions of impeller KCX (up and down)and different speeds for impeller MS,and a comparison of experimental and numerical simulation result of KCX impeller's power was performed. The experimental results showed that different agitators had different effects during polymer dissolution. The same rotation direction of inner impeller KCX and outer impeller MS increased flow rate and overall circulation in stirred tank,and accelerated dissolution of hydrophobic associating polymer. The best way for polymer dissolution is that impeller KCX operates with down-pumping direction and rotates with the same direction of MS.