| 摘要 |
PROBLEM TO BE SOLVED: To effectively capture a filament mixed in fluid of liquid, powder and a grain.SOLUTION: A constitutional unit At of arrangement of a plurality of longitudinal linear members 1-4 is constituted of first and second longitudinal linear members 1 and 2 mutually adjacently positioned in the width direction of a flow passage and a plurality of additional longitudinal linear members 3 and 4 transversely positioned side by side between the first and second longitudinal linear members 1 and 2 when viewing the downstream side from the upstream side in the flow direction of the flow passage and mutually separately positioned on the downstream side of the first and second longitudinal linear members 1 and 2 when viewing the flow passage from the transverse direction, and when viewing the downstream side from the upstream side in the flow direction of the flow passage, (1) among the plurality of additional longitudinal linear members 3 and 4, the additional third longitudinal linear member 3 nearest to the first longitudinal linear member 1 contacts or mutually overlaps with the first longitudinal linear member 1, (2) among the plurality of additional longitudinal linear members 3 and 4, the additional fourth longitudinal linear member 4 nearest to the second longitudinal linear member 2 contacts or mutually overlaps with the second longitudinal linear member 2, and (3) the plurality of additional longitudinal linear members 3 and 4 contact or overlap with each other. |
