抄録
Quality requirement of recycling pulp is recently getting stricter, and on the contrary, quality of waste paper as a raw material is getting worse rapidly. Accordingly screen processes of recycling paper treatment plant are faced to be more complicate for the purpose of improvement of contaminant removal. As the result, the required power ratio of screening processes has become large portion against total power consumption of the system, for instances, about 20 to 30% in case of deinking plant and 40 to 50% in case of brown grade waste paper plant. The “Gran Flow” is a newly developed screen, which can reduce the power consumption by about half. Not only power saving, but also dramatic sticky removal will be achieved. We believe the common sense for screening technology shall be changed rapidly with the new technology of the “Gran Flow”.
