| 摘要 |
PROBLEM TO BE SOLVED: To provide a twin-screw crusher free from the deposition of a crushed material on a top surface of a main body part of an uncrushed material supporting part and having advantage to perform maintenance of the crusher. SOLUTION: In the twin-screw crusher possessing a grate bar main body part 9 extending almost parallel to each rotary axis 5 in the middle of and below each rotary axis 5 and the uncrushed material supporting part 11 fixed to the grate bar main body part 9 and having a plurality of grate bars 10 arranged in every gap of each crushing blade 8, the top surface part 9a of the grate bar main body part 9 is formed to have a curved surface shape projected upward in an axial orthogonal cross-section to guide the crushed material falling down on the top surface par 9a of the grate bar main body part 9 to slide on the top surface part 9a to the under side of a case body 3. The grate bar main body part 9 is made freely rotatable and a fixing apparatus for limiting the rotation is provided. COPYRIGHT: (C)2003,JPO
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