| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of cleaning a waste paper recycling apparatus capable of securely removing fibers in a deinking tank and reducing efforts necessary for cleaning a deinking tank. <P>SOLUTION: Provided is a method of cleaning waste paper recycling apparatus 1 comprising a deinking tank 18 for separating printed components by diffusing gas into a waste paper pulp liquid to which the deinking agent 16 is added. The method comprises the steps of: cleaning the interior of the deinking tank 18 by allowing a wash water 57 for cleaning the deinking tank 18 to flow into the deinking tank 18 from an inlet 30; subsequently discharging from an outlet 31; and sending the wash water 57 discharged from the outlet 31 again to the inlet 30 via a circulation channel 65 so as to circulate with a circulation time of the wash water 57 being kept more than a prescribed time. <P>COPYRIGHT: (C)2013,JPO&INPIT |
