Crystallizing tank

The utility model relates to the field of pharmacy, in particular to a crystallizing tank which comprises a tank body, a cavity used for allowing crystallizing liquid to enter is formed in the tank body, a main rod is rotationally arranged on the tank body, a driving source used for driving the main rod to rotate is arranged on the tank body, and the main rod penetrates through the side wall of the tank body to the bottom wall of the cavity. The main rod is provided with a first stirring rod for stirring, the end part of the main rod is sleeved with a second stirring rod, a reverse rotation assembly is arranged between the second stirring rod and the main rod, and the reverse rotation assembly is used for enabling the main rod to drive the second stirring rod to rotate and stir in the reverse direction. The device has the effect that the concentration of the crystallization liquid is more uniform. 本申请涉及制药的领域，尤其是涉及一种结晶罐，其包括有罐体，所述罐体内形成有用于供结晶液进入的腔室，所述罐体上转动有主杆，所述罐体上设置有用于带动主杆转动的驱动源，所述主杆贯穿罐体侧壁至腔室底壁上，所述主杆上设置有用于搅拌的第一