| 摘要 |
PROBLEM TO BE SOLVED: To make the particle size of a crushed product small by efficiently crushing an object into small pieces by crushing the object repeatedly between numbers of rotary blades and fixed blades while the object is sent from above to below a gradient. SOLUTION: In a crusher, the rotary blades 5 which form crushing blades by forming notches in a rotary shaft 3 installed in a gradient crushing case 1 to have the same gradient are fixed at intervals, the object is crushed by being engaged with the fixed blades 7 and spacers 8 installed in the crushing case 1, and the object is crushed repeatedly while being sent from above to below the gradient by the gradient of the crusher and the torsion arrangement of the crushing blades. COPYRIGHT: (C)2005,JPO&NCIPI
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