| 摘要 |
PROBLEM TO BE SOLVED: To inhibit the increasing tendency of dusting loss in the dust treatment because the dust treatment chamber of the conventional style has only the working chamber and the treatment capacity is limited in the threshing machine. SOLUTION: In order to overcome the weak point, the following countermeasure has been taken. The second treatment chamber 4 bearing the second treatment drum 3 and the first dusting chamber 6 bearing the first dusting drum 5 are mounted on the outside of the threshing chamber 2 from which the sorting net 1 is extended on the outer periphery. The second dusting chamber 8 bearing the second dusting drum 7 is arranged above the first dusting chamber 6 and the second treatment chamber 4, further on the outside of the sorting net 1 that constitutes the threshing chamber 2. In the second dusting chamber 8, the dusting mixture is fed from the middle part of the threshing camber 2. In the first dusting chamber, the dusting mixture is fed from the rear end of the threshing chamber.
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