Design And Fabrication Of Small Scale Waste Paper Recycling Machine

Louis, Geldverond (2018) Design And Fabrication Of Small Scale Waste Paper Recycling Machine. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The need of paper increasing day by day as it is one of the method to deliver message and information especially in education and office.However,the high consumption rate of paper also causes extraordinary amount of waste paper. Since paper produced from wood,high consumed paper indirectly causes deforestation thus increase global warming as well.Recycling the waste paper is one of the methods to overcome this issue.This project is intend to evaluate the paper consumption by lecturer in Department of Mechanical Engineering Technology as well as faculty’s administration office,and to design and fabricate low cost mini waste paper machine prototype that can produced a recycled rough cardboard.The paper recycling machine developed by using mild steel as for main structure,PVC pipe used as rollers,and fabric mesh used as felt.The process in recycling the waste paper classified into three main process that is pulping process,forming process,and finally the drying process.The pulping process was done by mixing water and paper with the ratio of 30:1 respectively by weight.The forming process begin by pouring the pulp into the head-box.After that,the pulp was released from the head-box to a conveyor belt that transport the pulp to a dandy roller by rotating hand-wheel attached to the roller.The dandy roller is to ensure the initial thickness of the pulp sheet is uniform by 4 mm.Afterward,pulp sheet pass through a squeezing rollers to drain the pulp sheet from water.Later,the pulp sheet was compressed in the compressing section with approximately 40kPa.At this moment,the movement of the conveyor belt need to be paused until the applied pressure was releases.The wet recycled cardboard then taken out from the machine and dried under sun up to two days for the product to completely dry.Dimension analysis performed on the products shows average size of 241.4 mm  251 mm  1.962 mm rough cardboard with weight of 46.654 g.Tensile strength analysis of cardboard shows Young’s modulus of 293.16 MPa with ultimate tensile strength of 0.669 MPa.

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