Raw material dissolving tank for rosuvastatin calcium production

The utility model discloses a raw material dissolving tank for rosuvastatin calcium production. The raw material dissolving tank comprises a tank body, a motor, a stirring shaft and a stirring blade mechanism, a liquid inlet is formed in the upper portion of the tank body, the motor is arranged at the upper end of the tank body, and the output end of the motor is in transmission connection with the stirring shaft arranged in the tank body. The stirring blade mechanism comprises stirring blades and a mounting ring, the stirring blades are arranged on the circumferential surface of the mountingring, an axial through hole is formed in the mounting ring, a radial movable hole communicated with the through hole is formed in the mounting ring, a containing cavity is formed in the movable hole,and a limiting column is movably arranged in the movable hole; a limiting plate and a spring are arranged on the section, located in the containing cavity, of the limiting column, one end of the spring abuts against the limiti