The mixing characteristics are as follows:1. Since the combined impeller has a diameter close to the tank diameter, it is suitable for crystallization of materials close to non-Newtonian fluids, and also prevents the occurrence of sticking wall, which is beneficial to the heat transfer efficiency of the tank wall.2. The radial flow of the combined impeller and the axial flow along the four walls upward and the center of the tank and the organized flow of the whole tank liquid ensure the uniformity of the crystallization liquid in the whole tank.3. Low-speed stirring will not cause huge shearing force and cause crystal damage.4. The multi-layer impeller can adapt to the change of the liquid level of the crystal liquid.5, coupled with the use of variable speed stirring, can obtain the ideal nucleation and crystal growth conditions.
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