The utility model provides a
dichloromethane tail gas absorption device, which belongs to the technical field of
dichloromethane tail gas absorption and comprises a bottom plate, the upper end face of the bottom plate is fixedly connected with a
white oil absorption
tower, the upper end face of the
white oil absorption
tower is fixedly connected with a first bearing, and the inner side wall of the inner ring of the first bearing is fixedly connected with a rotating
pipe. The bottom end of the rotating
pipe penetrates through the upper end face of the
white oil absorption
tower and extends into the white
oil absorption tower, a spline shaft is slidably connected into the rotating
pipe, and a stirring shaft is fixedly connected to the bottom end of the spline shaft. Through the arrangement of the first bearing, the rotating pipe, the spline shaft, the stirring shaft, the stirring
paddle, the turbulent flow disc and the power mechanism, white oil is stirred in a reciprocating lifting mode, a gas-
liquid interface boundary layer can be broken through stirring, the contact area is increased,
dichloromethane molecules are accelerated to diffuse into the white oil, the
absorption efficiency is improved, and the service life of the white oil is prolonged. The problem of low dichloromethane
absorption efficiency caused by white oil standing in the prior art is solved.