Sawdust distillation column sealing method

The invention discloses a method for sealing a sawdust distillation column and relates to the field of a natural resin extraction technology. The method provided by the invention comprises the following steps: A, a second annular groove of a lower sealing cover is filled with sawdust, the lower sealing cover covers a discharge hole of a column body to make a side wall of the discharge hole to be clamped in the second annular groove filled with sawdust, and sawdust positioned on the outside of the discharge hole in the second annular groove is compressed; B, sawdust to be distilled is put into the column body through a feeding hole; and C, a first annular groove at the feeding hole is filled with sawdust, an upper sealing cover covers the feeding hole to make a side wall of the upper sealing cover to be clamped in the first annular groove, and sawdust on the outside of the feeding hole in the first annular groove is compressed so as to finish sealing of the sawdust distillation column. In comparison with the prior art, the invention has the advantage as follows: problems such as poor airtightness and high energy consumption of present sawdust distillation column sealing methods can be solved.