Recovery device of solvent in extraction plant tail gas

The invention provides a recovery device used for recovering solvent in tail gases of extraction plant, which is provided with a recovery tower and an oil and water separator which are connected with each other by pipelines, wherein, the recovery tower is provided with a cylindrical tower body; the upper side surface of the tower body is provided with a water inlet pipe; the upper end of the tower body is provided with an exhaust port; the lower side surface of the tower body is provided with a liquid outlet; the bottom of the tower body is provided with a tail gas inlet; a tower plate or filling material is arranged between the liquid outlet and a bubble collector in the tower body; the oil and water separator is provided with a straight hexahedron-shaped container; the bottom surface in the length direction of the container is an inclined surface; the container is internally and uniformly provided with clapboards; a clearance is formed between the upper end and the lower end of the clapboards and the upper