| 摘要 |
PROBLEM TO BE SOLVED: To adjust a classification space between a second rotary blade of a pneumatic pulverizer and a casing on the discharge side, from the outside. SOLUTION: This pneumatic pulverizer is constituted so that a first rotary blade 11 and the second rotary blade 12 are arranged in the casing 10 while keeping a predetermined distance between them, a crushing zone B is formed between the first rotary blade 11 and the second rotary blade 12, a taper wall 22 the diameter of which is made smaller gradually forward from the crushing zone B is arranged in the casing 10, a slope 29 facing the taper wall 22 is arranged on the second rotary blade 12 to form the classification space C between the taper wall 22 and the slope 29 and a raw material is pulverized by a whirling air current to be generated by rotating the first rotary blade 11 and the second rotary blade 12. A bearing housing 30 to be fit to a frame 17 to be slid and an adjusting shim 31 to be inserted between the frame 17 and the bearing housing 30 are arranged as a space adjusting means for adjusting the classification space C by moving the first rotary blade 11 and the second rotary blade 12 backward/forward together with a shaft 16 from the outside of the casing 10. COPYRIGHT: (C)2005,JPO&NCIPI
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