The utility model relates to the technical field of
potato processing devices, in particular to a potato
drying and ventilating
system which comprises a
drying chamber, a conveying chain and a return chain are arranged in the
drying chamber, the conveying chain and the return chain form a ventilating separator, and the ventilating separator divides the drying chamber into an upper-layer drying chamber and a lower-layer drying chamber; an upper-layer finned
heat exchanger and an air inlet pipeline are mounted on the drying chamber; a three-way
pipe is arranged on the drying chamber, the first end of the three-way
pipe is connected with the upper-layer finned
heat exchanger, the second end of the three-way
pipe is connected with the air inlet pipeline, the third end of the three-way pipe is connected with an exhaust pipeline, the end, not connected with the three-way pipe, of the exhaust pipeline is communicated with the lower-layer drying chamber, and a
centrifugal fan is installed on the exhaust pipeline. According to the potato drying and ventilating
system, the operation wind resistance is greatly reduced, and the phenomenon of blockage caused by fin deformation is not prone to occurring, so that the
air volume is more sufficient, the drying effect of potato chips is improved, and energy is saved.