The ice slurry was prepared by using the small scale ice making machine. The effects of crystallization time

second refrigerant temperature

additive type and concentration

and scraping speed on the dynamic generation process of the ice slurry were investigated. The heat balance method was used in the study. The ice packing factor at different times of the crystallization process was microscopically photographed

and the equivalent diameter of the ice crystal size was obtained based on image processing. The experimental results show that the cooling rate of the ice-making solution is less affected by external conditions during the test time of the dynamic crystallization process

but the type and concentration of the additive have a great influence on the phase change crystallization temperature and supercooling degree of the ice-making solution. The ice packing factor and ice crystal size of the solution increase with time. The temperature of the brine

the type and concentration of the additive have a great influence on the ice content of the solution

and the factors that have the greatest influence on the ice crystal size are the scraping speed and the additive concentration. When the crystallization process is carried out for 30 min

the ice content of the solution reaches 25%

and the ice crystal size can reach about 0.12 mm.