| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a crusher capable of preventing incomplete crushing and of more surely crushing an object into crushed pieces of a powdery shape of a small diameter. <P>SOLUTION: The crusher includes a primary crushing chamber 3 for carrying out primary crushing and a secondary crushing chamber 4 for carrying out secondary crushing, with a rotary drive shaft 5 disposed in the crushing chambers 3, 4. A plurality of disc-shaped rotors 20 to 23 are disposed in multiple stages in the primary crushing chamber 3. A plurality of movable crushing blades 24, 24 for use in the primary crushing chamber 3 are disposed on the fringe of each of the specified disc-shaped rotors 21 to 23 in a manner swingable on a perpendicular shaft, with the tips thereof disposed close to the inner wall face of the crushing chamber 3. A plurality of movable crushing blades 29 for use in the secondary crushing chamber 4 and a plurality of barrier members 31 are alternately disposed one after the other in the secondary crushing chamber 4, which crushing blades 29 are disposed on the fringe of the disc-shaped rotor 30 in the direction of the circular circumference in a manner swingable on a perpendicular shaft within a prescribed angular range, with the tips thereof disposed close to the inner wall face of the crushing chamber 4, and which barrier members 31 prevent the crushed matters from entering the gaps between the neighboring crushing blades 29. The primary crushed pieces are guided to the inner wall face side of the crushing chamber 4 and to the upper face side of the crushing blades 29 and the barrier members 31. A regulation plate 28 for substantially setting the limit of the falling position of the crushed pieces within the vicinity of the inner wall face is also disposed in the secondary crashing chamber 4. <P>COPYRIGHT: (C)2012,JPO&INPIT |
