On-line Recycling Of Plastic From Waste White-appliances With The Near-infrared Spectroscopy

Among all the waste household appliances,the waste white household appliances are more valuable to be recycled for the less content of stain.Meanwhile,the purity of the recycled plastic will determine the value of the recycled plastic,thus,the study on recycling waste white household appliances are very important.This article did the research on recycling ABS,PS and PP from waste white household appliances utilizing the near-infrared analyzing technology.This research combined the near-infrared analyzing software with the hardware control and established an equipment to separate and recycle ABS,PS and PP from waste white household appliances.For the hardware design,the feeding system and the outcome system were analyzed;for the software design,mainly studied the near-infrared spectral analysis algorithm.Based on the above studies,established the equipment of separation the recycling ABS,PS and PP from waste white household appliances,in order to automate the recycling process.Several experiments were designed to analyze the three factors(belt speed,integration time t and height of the fibre-optics probe?₁))that influenced the accuracy and purity of the separation system and products.Through the statistical analysis,the optimized parameters were determined that raised the accuracy percent to 99%.Based on the optimized parameters,the production estimation and economic assessments in Jiangsu Provence were given which will provide the industrial applications with suggests.