A PET plastic bottle. Soft drinks bottles made from the synthetic material PET, or polyethylene-terephthalate. Light weight and unbreakable, they are particularly suitable for carbonated beverages. Nowadays PET can be readily recycled, almost as easily as glass. The first step is to separate the materials according to type of plastic and colour. The bottles are carried on the conveyer belts past a series of detectors .They fly off the belt as if snatched by an invisible hand. X-ray eyes recognize all the items, register the different structures of the plastics. Expensive, fast computers can even compensate for errors in reading the paper labels. They can recognize a green PET bottle even when it is carrying a white label. A camera supplies the data for colour sorting. An extremely fast computer controls the air jets. And here we see the result of two hours of sorting procedure. Cleanly separated clear PET *** the labels in different colors. It would be perfectly possible to produce new PET bottles from these fragments. A light weight bottle like this has ecological advantages when it comes to transport. Glass is 20 times heavier.作者: snowwhite_62 时间: 2008-4-18 22:27
A PET plastic bottle, some drinks bottles made from synthetic material PET of ? light weight and unbreakable, ? suitable for ? Nowadays PET can be rightly recycled ? as easily as glass. The first step is seperate material according to type and color, ? carried about ?ask seriously detective? visible hand,? structural plastics, expensive, fast computers can even ?for area reading the paper labors, recognised the green PET bottle, even when it's carrying the white labor. The camera's supplied the date for color sort, and it extremely fast computer control the ? And here we see the result, two hours ? produced ? cleaning seperate PET, especially ? and different colors. You will be perfect possible produce new PET bottles from these equipments. A light weight bottle like this has equally advantages when it comes to the transport. Glass is twenty times heavier.作者: yoyo530521 时间: 2008-4-21 16:31 标题: 标准答案
A PET plastic bottle. Soft drinks bottles made from the synthetic material PET, or polyethylene-terephthalate. Lightweight and unbreakable, they are particularly suitable for carbonated beverages. Nowadays PET can be readily recycled, almost as easily as glass. The first step is to separate the materials according to type of plastic and colour.
The bottles are carried on the conveyer belts past a series of detectors .They fly off the belt as if snatched by an invisible hand. X-ray eyes recognise all the items, register the different structures of the plastics. Expensive, fast computers can even compensate for errors in reading the paper labels. They can recognise a green PET bottle even when it is carrying a white label. A camera supplies the data for colour sorting. An extremely fast computer controls the air jets. And here we see the result of two hours of sorting procedure.
It would be perfectly possible to produce new PET bottles from these fragments. A lightweight bottle like this has ecological advantages when it comes to transport. Glass is 20 times heavier.
