| 摘要 |
PROBLEM TO BE SOLVED: To provide a dry crusher with a high crushing capability for crushing a granular solid material, an object particle to be crushed, in dry manner. SOLUTION: The dry crusher 1 comprises a crushing chamber 3 in the inside, an outer cylinder 2 having an air sending hole 32 for sending air to the crushing chamber 3 in the lower part, a first rotator 10 rotated by a first rotary shaft 11 hung down from the ceiling part 4 of the crushing chamber 3 and having a plurality of conical rotating discs 13 arranged in parallel to the center axial direction of the outer cylinder 2, and a second rotator 20 rotated by a second rotary shaft 21 uprightly stood from the bottom part 6 of the crushing chamber 3 and having a plurality of conical rotating discs 23 arranged in parallel to the axial direction of rotation. The respective rotating discs 13 of the first rotator 10 and the respective rotating discs 23 of the second rotator 20 in the dry crusher 1 are reciprocally arranged in the center axial direction of the outer cylinder 2 and the first rotator 10 and the second rotator 20 are rotated concentrically in inverse directions. COPYRIGHT: (C)2005,JPO&NCIPI
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