| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a drum screen of a small size capable of inhibiting treated matter from flocculating again or undergoing similar change. Ž<P>SOLUTION: A circular tube shaped screen is formed by arranging a plurality of rods to constitute a circular tube. An annular roller accepting ring is fixed to annular frames at both ends of the circular tube shaped screen. Two rotary rollers having a rotary shaft in parallel with an inclination direction are pivoted at each of left/right positions on the low position side and left/right positions on the high position side on an inclined base frame. The center rotary shafts of the left/right rotary rollers on the low position side and the center rotary shafts of the left/right rotary rollers on the high position side are connected with each other, respectively, by connection shafts. The circular tube shaped screen is installed on the four rotary rollers on the front/rear sides in an inclined posture. A thrust bearing roller is rotatably installed on the base frame on the low position side of the screen. The outer circumference of the thrust bearing roller is set to abut with the side face of the annular roller accepting ring. Any one of the rotary shafts of the rotary rollers is driven by a drive motor to turn. Thus, the circular tube shaped screen can be turned around the common rotary shaft. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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