Efficient extraction device for lactic acid

The utility model belongs to the technical field of extraction devices, and particularly relates to an efficient extraction device for lactic acid, which comprises a shell, and a mixing cavity, a stirring cavity and a standing cavity are arranged in the shell from top to bottom; the mixing cavity is connected with a first liquid inlet pipe used for inputting heavy phase liquid and a second liquid inlet pipe used for inputting light phase liquid, and a flow blocking assembly used for slowing down the flow speed is arranged in the mixing cavity; a stirring assembly for fully mixing the heavy-phase liquid and the light-phase liquid is arranged in the stirring cavity; a heating assembly and an ultrasonic vibration assembly are arranged in the standing cavity; the heating assembly comprises a heating piece arranged in the inner wall of the standing cavity and a temperature sensor arranged in the standing cavity, and the heating piece is electrically connected with the temperature sensor; the ultrasonic vibration a