| 摘要 |
PROBLEM TO BE SOLVED: To reduce the abrasion caused by rotating heavy particles. SOLUTION: The device for carrying out heavy particles is constituted as follows. At least one joining part 2 for direct or indirect joining is installed in a heavy particle-discharging part 4' installed in a hydrocyclone 3 acting for separating the heavy particles from the pulp suspension. The joining part 2 has at least one heavy particle-discharging part 4, and the inner surface 9 of the joining part 2 has a polygonal cross section. COPYRIGHT: (C)2007,JPO&INPIT
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