| 摘要 |
PROBLEM TO BE SOLVED: To classify a fine classification object, while restraining the problem of thermal deposition as much as possible.SOLUTION: A classifier 2 comprises a first wall member 21 and a second wall member 22. A space partitioned by the first wall member 21 and the second wall member 22 is formed as a flow passage 20R of a mixing body including a classification object and gas. The classifier 2 takes out the mixing body to a selection area K set on the downstream side of an outlet of the flow passage 20R of the mixing body. An interval between the first wall member 21 and the second wall member 22 gradually reduces toward the outlet of the flow passage. The cross-sectional area of the flow passage 20R gradually increases toward the outlet of the flow passage 20R.SELECTED DRAWING: Figure 1 |
