DESIGN AND CONSTRUCTION OF A PLASTIC SHREDDING MACHINE
Abstract
ABSTRACT
Thisprojectfocusesonthedesignandfabricationofaplasticshreddingmachinesuitableforsmall- scale recycling initiatives. The project involves designs including gears, shaft, hopper, blade and selection of appropriate materials for construction. The machine was designed to handle Low DensityPolyethylene(LDPE)plastics.Theconstructionmethodinvolves measurements, cutting, welding,assemblingandadjustments.Somecomponentsofthemachinehadtobepurchasede.g. (prime mover). The finishing work includes balancing, filling, cutting, adjustments, alignments and painting. The test carried out using a feed of 60cl Low Density Polyethylene (LDPE) plastic bottle achieved 50% efficiency (cutting the bottle into maximum of 5 pieces). Shredding is the first stage of plastic recycling and this machine is applicable. Although the machine produced could not achieve 100% efficiency it is still useful for breaking down bottles making it easier to handle and package for further processes.
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