WIND PERMEATION-TYPE DRYER CAPABLE OF SCRAPING MATERIAL

摘要

A wind permeation-type dryer capable of scraping material, comprising a cavity and a heating assembly (3); the cavity comprises an experiment cavity (1) and a dropping cavity (2); the experiment cavity (1) is located above the dropping cavity (2); the heating assembly (3) communicates with the experiment cavity (1) or the dropping cavity (2); the cavity is provided with a sieve tray assembly (4) therein for placing material; the sieve tray assembly (4) is provided with a rotating scraping assembly (5) thereabove for scraping and flattening the material on the sieve tray assembly (4); the rotating scraping assembly (5) comprises a rotating drive piece (51), a rotating rod (52) and a scraping sheet (53); one end of the rotating rod (52) is connected to the rotating drive piece (51), and the other end is connected to the scraping sheet (53) adjacent to the sieve tray assembly (4); the rotating drive piece (51) drives the rotating rod (52) to rotate so as to drive the scraping sheet (53) to rotate together therewith, such that the material contacting the scraping sheet (53) is scraped and flattened. The device has an automatic sample flattening function, ensures the uniformity of sample drying, and increases a working efficiency.