| 摘要 |
<p>Waste paper pulp stock containing undefibered waste paper is supplied to a cylindrical screen plate (18,19) within an outer casing (2) thereby separating it into accept stock, which passes through the screen plate (18,19) and is then discharged through one or more accept stock outlets (4,5), and reject, which does not pass through the screen plate (18,19). The reject is then passed through a defibering gap defined between a defibering stator (23) and a rotating defibering rotor (24) whereby at least some of the undefibered waste paper is defibered. At least some of the reject is diluted with dilution water and the diluted reject is then recirculated to the screen plate (18,19) or alternatively it is supplied to a further screen plate (20) and dilution water is also passed to the screen plate (18,19). The reject from the second screening process is then discharged, at least in part, through a reject outlet (7). <IMAGE></p> |
