| In this paper, PET bottles for recycling sorting and | | | | Environmental Department to develop a film |
| cleaning technology to make some brief remarks, | | | | separated from the PET bottles PVC machine. In |
| also introduced in these areas representative of | | | | 99 years that the machine (Flakesort) put into |
| the two foreign companies. In the present, | | | | use on clean, dry, 3mm or more bottles of films |
| China's plastics recycling industry, beverage | | | | separated, can achieve 99 +% of the effect that |
| bottles (PET) recycling is perhaps the most | | | | if the material contains 1% of the PVC, up to |
| "money" passers-by, but also the | | | | 0.01% after the separation (100PPM). For color |
| most popular recovery projects. In the | | | | separation, when the visible light through the |
| post-consumer plastics recycling, the impact of | | | | colored bottles when the bottles will show |
| the quality of the final product there are two | | | | shadows, so it is easy to be colored bottles and |
| important factors: sorting and cleaning. 1. Sorting | | | | bottles separated from the transparent, NRT has |
| the majority of recycling companies in China is | | | | developed a modular detachable splitter out of |
| currently dealing with post-consumer bottles or | | | | light blue, dark blue, black different colors of bottle |
| other containers used method of manual sorting, | | | | [NRT Company: email: ] the recovered PET |
| in foreign countries, especially in Europe and the | | | | bottles washing are commonly used to tow the |
| United States, has developed an automated | | | | boat, extrusion sheet, re-bottle. For the PVC |
| sorting equipment to adapt to large-scale material | | | | content of 100ppm tow the boat will be able to |
| processing requirements. Principle: The so-called | | | | meet the needs and re-bottle of PVC content in |
| separation or isolation of PET bottle-doped PVC, | | | | the following general requirements for control |
| other polymers bottles and colored bottles. (Cap | | | | 20PPM. I engaged in recycling of waste plastics in |
| and label in the sorting process can not be | | | | a few years, had received a lot of manufacturers |
| removed.) Almost all of the sorting system are | | | | of domestic recycling the recovered samples, |
| based on the same principle, namely, the use of | | | | sent to the United States or Europe to the test, |
| different light absorption of different resins. Raw | | | | the result is adhesive and the PVC concentrations |
| materials (post-consumer bottles) through a | | | | are very high, so that has allowed us to recover |
| detector (infrared or X-ray), the computer | | | | the use of materials and value greatly reduced. 2. |
| system identifies the type of the substance, and | | | | The cleaning process a complete cleaning system |
| to decide whether it should be the substance | | | | generally include: pre-wash parts, clean parts, |
| from the material flow in the pop-up. For the | | | | other parts of the process of rinsing. Pre-wash |
| pop-up, the detector immediately after the | | | | some of the general process is to use water to |
| pneumatic valve to open, the bottles from the | | | | remove the latter part of the material surface |
| material flow in the pop-up. Maintenance: The | | | | are wear and tear effects of pollutants, this part |
| separator is very little maintenance, general | | | | of the use of water from PET bottles washing |
| maintenance for the conveyor belt, air valves, and | | | | areas, otherwise the water will be discharged as |
| compressed air, while the system scale (set | | | | waste water. In the pre-wash part of the (heat), |
| value) the need to give updates at the | | | | the adhesive labels began to melt glue, PVC |
| appropriate time. Computer System: All the | | | | bottles began to fade. Cleaning (Bottle): By PET |
| detectors are controlled by computer systems. A | | | | bottles washing tank, the horizontal separators |
| general separator, manufacturers will provide | | | | and other equipment can be glue residue and |
| network connectivity to diagnose and analyze the | | | | other contaminants to separate. At the same |
| production process problems and solve them. The | | | | time in the cleaning process may be based on the |
| principle of selection: choosing whether separation | | | | impurity content of materials is uniform to select |
| system is based on the capacity of recycling | | | | continuous or intermittent cleaning. If the material |
| companies to decide, but now the bottle has | | | | impurities uniformly choose a continuous cleaning, |
| reached maximum yield of separator 5000KG / H. | | | | content cleaning uneven choose intermittent. |
| Select X-ray or infrared light by the user | | | | Rinsing process: the density of different polymers |
| according to actual needs in general to determine, | | | | can be separated and re-balance the PH value of |
| infrared can be measured a lot of new polymers, | | | | the material and cleaning. Water treatment: water |
| and can be very good to remove impurities in the | | | | treatment is very important, not only for the |
| PET. Some dirty bottles or bottles of liquid will | | | | functions of the machine but also for the end |
| cause the X-ray detector to detect errors occur, | | | | product quality and processing costs are also very |
| many users choose X just because the | | | | important, a need for a successful product line |
| technology is very mature. Bottles of tablets and | | | | with a water filtration, treatment and recycling |
| color separation technology: In 1997, the United | | | | systems. Under normal circumstances, after such |
| States NRT (National Recovery Technologies) | | | | a high-quality after PET bottles washing , all kinds |
| Corporation entrusted by the United States | | | | of impurities were controlled at around 10PPM. |