Continuous dehydration distillation device for diisobutyl nylonate

The invention belongs to the technical field of chemical production, and discloses a continuous dehydration distillation device for diisobutyl nylon acid, which comprises a distillation tower, a top cover is movably mounted at the top end of the distillation tower, the left side of the top end of the top cover is fixedly communicated with a feed pipe, and the right side of the top end of the top cover is fixedly communicated with a discharge pipe. The middle of the top end of the top cover fixedly communicates with a steam output pipe. By means of the characteristic that high-temperature gas generated after liquid is heated and gasified during distillation rises, the high-temperature gas is introduced to the feeding position to heat continuously-fed raw materials, the temperature of the raw materials entering the distillation tower is increased, and the situation that the temperature in the tower is reduced due to continuous feeding of a traditional device is avoided; the problems that the heating temperature