Film evaporator for pharmaceutical production

The utility model relates to the technical field of film evaporators, and discloses a film evaporator for pharmaceutical production, which comprises a barrel, a discharge pipe is communicated with the middle of the lower end of the barrel, an outer shell is hermetically mounted on the outer side of the barrel, a servo motor is fixedly mounted on one side of the upper end of the outer shell, and a lead screw is mounted at the output end of the servo motor. According to the technical scheme, through the arrangement of the barrel body, the discharging pipe, the servo motor, the fixing ring, the through opening and the sliding groove, in the using process, the fixing ring can move up and down, hot water in the outer shell can be stirred continuously through cooperation of the through opening in the fixing ring, and therefore the heat evaporation efficiency is improved, and in the up-down moving process of the fixing ring, the hot water in the outer shell can be stirred continuously. And the sponge ring on the fix