PROBLEM TO BE SOLVED: To produce an unaltered pulverized material of excellent quality by efficiently pulverizing a hard-to-pulverize thin film, obtaining the pulverized material of particles of a matched particle size, preventing overheating and efficiently performing pulverization even when pulverizing a material to be pulverized with a soft thin film like a grain particle by simple apparatus and operations.SOLUTION: A raw material is supplied from raw material supply paths 55 and 56 to a raw material introduction part 11 between a fixed pulverizing board 4 and a movable pulverizing board 5, the movable pulverizing board 5 is suspended through a drive shaft 21, an interval from the fixed pulverizing board 4 is adjusted by an interval adjusting mechanism 7, and power is transmitted to the drive shaft 21 while preventing heat transmission from a driving device 8 to rotate the movable pulverizing board 5. While the raw material is moved through a coarsely grinding and distribution groove 17, the raw material is coarsely pulverized, the hard-to-pulverize raw material is pulverized in a pulverizing part 61, distributed to a fine pulverization part 62 and finely pulverized, and the pulverized material 60 is thus produced.COPYRIGHT: (C)2008,JPO&INPIT【課題】簡単な装置と操作により、穀類粒子のように軟質の薄膜を有する被粉砕物を粉砕する場合でも、効率よく難粉砕性の薄膜を破砕し、粒度のそろった微粒子の粉砕物を得、過熱を防止して効率よく粉砕を行い、無変質で、品質が優れた粉砕物を製造する。【解決手段】固定粉砕盤4と可動粉砕盤5間に、原料供給路55、56から原料導入部11へ原料を供給し、駆動軸21を通して可動粉砕盤5を吊り下げて、間隔調整機構7により固定粉砕盤4との間隔を調整し、駆動装置8から伝熱を防止した状態で駆動軸21に動力を伝達して可動粉砕盤5を回転させ、粗挽き分配溝17を通して原料を移動させる間に原料を粗粉砕するとともに、破砕部61で難粉砕性原料を破砕し、微粉砕部62に分配して微粉砕し、粉砕物60を製造する。【選択図】 図1
