| 摘要 |
PURPOSE: A spreader is provided to collect only minute slurries of a small specific gravity in a raw material tank by forming multiple slit grooves on the outer side of a shaft and to remarkably improve efficiency of the spreader. CONSTITUTION: A spreader comprises: a shaft(230) rotating by the drive of a motor; a plurality of rotors which are installed on lower one side of the shaft; an impeller(220) which is installed on the upper side of the rotor; a case in which the impeller and the rotor are put; and a separation housing(210) which is installed on the upper side of the case. Multiple slits(232) are formed on the outer side of the shaft penetrating the separation housing and the impeller.
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