Analysis of waste paper processing through disc screen

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Today, we don't consider waste paper as a general waste, but it is mainly considered as a secondary raw material that is cost-effective, energy-saving and produces fewer polluting emissions. Effective recycling relies on effective sorting. Sorting of the recovered paper constitutes a quality assurance step. For this reason, the collected waste papers need to be sorted into different fractions with closely defined material properties according to the standard paper grades for recycling and undesirable materials must be removed from final product. Since the role of disc screens as the primary sorting units in waste paper processing plants is critical, enhancing the performance of these screens to segregate valuable stocks from unwanted materials and impurities will improve the overall purification of final products and its market price. The objectives of this research were to find the best sorting trend of waste paper on disc screen (qualitative and quantitative) in regard to feed material characteristic and influencing variables. Also the initial possibility of online analysis of feed material properties and automatically adjusting of disc screen as a potential process idea is studied as well.