| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a multi shaft pulverizer capable of achieving reduction in weight and size by reducing torque received by a rotary shaft or the like. <P>SOLUTION: Rotary blade 15, 16 are provided at different positions around rotary shafts 10, 20, respectively. For example, five rotary blades 15, 16 are fixed while being spaced apart by a proper length in an axial direction of each rotary shaft 10, 20. There are four blade parts 151, 161 of respective rotary blade 15, 16 along the circumferential direction while being shifted by 90 degrees. In this case, because there are twenty (4×5) blade parts 151, 161 around one rotary shaft 10, 20, the positions of the blade parts 151, 161 of the respective rotary blades 15, 16 are provided around the rotary shafts 10, 20 while being shifted by 18 degrees. A rotation control unit controls the rotation of at least one of the rotary shafts 10, 20 so that the blade parts 151 of each rotary blade 15 fixed to the rotary shaft 10 and the blade parts 161 of each rotary blade 16 fixed to the rotary shaft 20 have different rotation angles. <P>COPYRIGHT: (C)2012,JPO&INPIT |
