The invention discloses a
lithium battery NMP (N-Methyl Pyrrolidone)
recovery device based on PLC (
Programmable Logic Controller) control, which comprises a
recovery tower,
recovery liquid is stored in the recovery
tower, a rotatable rotating shaft is arranged in the middle of the recovery
tower, a plurality of
synchronizing shafts are arranged on the outer side of the rotating shaft, a plurality of rotating pipes are arranged at the bottoms of the
synchronizing shafts, an air inlet disc is arranged at the bottom of the rotating shaft, and a plurality of flow equalizing pipes are arranged on the outer side of the air inlet disc. A plurality of flow equalizing holes are formed in the flow equalizing
pipe, an air inlet fan is arranged on one side of the recovery tower, the output end of the air inlet fan is communicated with the flow equalizing
pipe, a plurality of spraying pipes are arranged at the upper end of the rotating shaft, a fixedly connected recovery plate is arranged in the recovery tower, a plurality of through recovery holes which are uniformly distributed are formed in the recovery plate, and two rotatable rotating frames are arranged in each recovery hole; adsorption cotton is arranged in the rotating frame, and an
extrusion plate is further arranged in the rotating frame. And through the design of the rotating
pipe and the flow equalizing pipe,
waste gas can enter the recovery liquid in a bubble shape, so that the contact probability of the
waste gas and the recovery liquid can be improved, and the recovery rate of substances in the
waste gas is improved.