| 摘要 |
PURPOSE: A raw stone multi crusher for producing a crude material and crushed sand is provided to minimize the generation of a square and a broken stones by generating the clash of the raw stone and to maximize the efficiency of crushing. CONSTITUTION: The crusher having a first inserting hole(121) for inserting the raw stone, placed in the center of a steel crushing chamber(51) is installed with: a lower rotor(1) having plural rotor blades(13); an impeller(2) having plural rotor blades(23) placed differently from the rotor blades installed on the lower heater so as to rotation-radiate the raw stone; a raw stone dropping device(3) consisted of an outside pipe(32) having a raw stone remaining bulk plate(321) in the center of the outside. Herein, the driving device has a first and a second motors(141, 142) installed on the both sides, a pulley(413) connected with the lower heater and a belt(414) for connecting the first and the second motors with the pulley.
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