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    • 3. 发明专利
    • ROLLER FOR SCREENING AND ROLLING SCREEN
    • JP2002210415A
    • 2002-07-30
    • JP2001331144
    • 2001-10-29
    • KOBE STEEL LTD
    • TOMOCHIKA TAKAYUKIOKAWA KOJITSUNE KIYOSHITANAKA TAKESHI
    • E02F7/00B07B1/15
    • PROBLEM TO BE SOLVED: To provide a rolling screen capable of surely dropping even a viscous or a high water content and very undesirably conditioned raw material through gaps between rotary rolls, and realizing high efficiency screening operation. SOLUTION: When the rolling screen 5 is constructed by arranging at prescribed intervals in the flowing direction of the raw material rotary rolls 11 provided with rollers each of which is provided by arranging a plurality of rotary rollers 12 slanted at a fixed angle within the range from 30 degrees and not exceeding 90 degrees in the direction of its rotary shaft around the shaft at a prescribed pitch in the direction of the rotary shaft, a plurality of passages for the raw material extending in a zigzag in the direction of the flow of the raw material is formed by the gaps 14 formed between slanted circumferential grooves 13 and those 13 formed between rotary rollers 12 on adjacent rotary rolls 11 provided with rollers, and the very undesirably conditioned raw material such as a viscous or a high water content raw material can surely be dropped through the gaps 14 of the rotary rolls 11.