Circulating gas washing-absorbing system and washing-absorbing method for air current type drying machine

The invention discloses a circulating gas washing-absorbing system and a washing-adsorbing method for an air current type drying machine, and belongs to the field of air current type drying equipment. The circulating gas washing-absorbing system and the washing-absorbing method for the air current type drying machine have the advantages that the drying efficiency is comparatively high, drying time is comparatively short, and the energy consumption for material drying and cost can be lowered. An absorption tower is utilized, solvents in circulating gas is absorbed through absorption liquid, meanwhile, the absorption liquid is pumped in the absorption tower after being cooled by an arranged absorption liquid cooler, and heat transfer by contacting and mass transfer by contacting can be achieved when the absorption liquid makes contact with the circulating gas, therefore, the effect of heat transfer and mass transfer can be improved greatly, the content of the solvents in the circulating gas exhausted out of the top of the absorption tower is lowered greatly, the content of the solvents in the circulating gas reentering drying machine is comparatively low, the absorption rate on the solvents in the circulating gas can be improved, the drying time can be shortened, the energy consumption for material drying is lowered, and the cost is saved.