| 摘要 |
PROBLEM TO BE SOLVED: To efficiently pulverize waste including metal without generating an inclusion phenomenon or the like by mounting a rotated file which scrapes off the waste to be treated while coming in contact with the bottom of the waste to be treated which is to be pulverized and a driving means for rotating the file on this pulverizing device. SOLUTION: This pulverizing device is provided with a hopper 3 storing a waste 2 to be treated above a vertically long case 1 and a rotated cylindrical file 4 below the hopper 3 as a pulverizing means. A motor 5 is provided as a rotary driving means for rotating the cylindrical file 4. The cylindrical file 4 has a number of claw 15 on its outer peripheral surface 4a and the claw 15 comes in contact with the bottom of the waste 2 to be treated to scrape off the waste 2 to be treated. The projecting height c of the claw 15 is specified to be 0.1 to 10 mm. The outer peripheral surface 4a of the cylindrical file 4 or the claw 15 is made of sintered hard alloy. By thus utilizing the rotated cylindrical file 4 as a pulverizing means, the waste 2 to be treated which contains metal can be finely scraped off as if radish were grated. |
