The hottest packaging concept recycling

2022-08-20
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Packaging concept: recycling and reuse (Part 2)

classification technology of packaging waste in the new century

sortechnology 3.0 (sortec 3.0) newly developed by dual system company is the first fully automatic classification and processing system of lightweight packaging products. The company said that sortec 3.0 is a classification technology in the new century, which is a milestone to reduce the cost of recycling and reuse and open a branch road. If Germany adopts new high technology, the cost of classification and treatment of used plastic packaging can be reduced by 50%

sortec 3.0 turn the light packaging waste collected by dual system into recyclable products. Classification is based on the physical properties of materials, resulting in high-quality recycled raw materials that can be used for many purposes, such as reduced pure plastics. These plastics can be directly recycled without reprocessing. Sortec 3.0 will not produce hybrid plastics that are difficult to recycle

the investment in sortec 3.0 plant in andaton and the light intensity reflected by the glass sheet without film, which can be used as a material that many metal and non-metallic materials are not competent for, compared with this intensity, the construction cost is up to 18million marks. The plant will process 25000 tons of packaging waste produced by about 1million residents in Hanover and adjacent areas in Germany every year

The new production procedure of sortec 3.0 was developed by engineers from HTP company of andaton and andashun RWTH processing technology center

New Technology revolutionizes waste management

at present, there are about 30 classification plants in Germany to deal with the light-weight packaging waste collected by the dual system. Although the automation process has been greatly improved in the past few years, many classification plants still have to rely on manual classification. However, the new recycling waste classification technology will greatly improve the classification efficiency and reduce the cost of light packaging waste classification

dry machine pre classification

sortec 3.0 procedure can be divided into three steps: dry machine pre classification, wet machine treatment and plastic treatment. Although the technology used in the three steps is familiar, it is combined in a new way, which can be classified by material properties on the production line. The size of packaging waste is no longer important. In the current procedure, plastics are classified according to plastic film, bottles and mixed plastics. The latter part is composed of different kinds of plastics, so it does not contain any recycling technology

in sortec 3.0 program, the yellow bag containing packaging waste is automatically opened by the machine first, and then the light waste in it passes through sieves of different sizes to classify the waste into categories. Each classification part passes through an air separator. It's like an oversized fashion blower, which blows away the light plastic film and paper. These parts as light as 0 °, 90 ° or 45 ° are directly sent to the second step of mixing with water

those parts that cannot be blown away by the air separator, that is, the weight part, will be sent to the magnetic separator for treatment. Iron objects such as tank covers will be sucked away by magnetic force. The infrared dialysis machine can distinguish PET bottles and paper wrapped drink boxes. The dialysis machine can distinguish PET bottles and paper wrapped drink boxes of different sizes, shapes and colors, classify them into different transportation and cosmetic surgery Singapore, and then send them to individual collecting boxes through compressed air valves. Wet machine treatment is to send the remaining weight to the second water mixer. Any dirt and paper scraps will float on the water, and plastic and aluminum packaging containers will be cleaned in this step. In this wet water treatment process, the paper scraps and sundries in the water will be extracted into dry waste, and the purified water will be added back to the soil mixing step to form a recycling system

the remaining materials, mainly plastic and aluminum packaging, will be shredded. The shredded waste is sent to two connected centrifugal extractors containing water or brine as the extraction medium. In this way, different plastics with different densities are classified. This procedure separates basically pure polystyrene and polyolefin

the heavy substances that sink to the bottom will be removed by eddy current separation method. In the vortex current separator, the rapidly rotating magnet will generate current to the aluminum material, and the generated magnetic field is opposite to that of the vortex current separator. As a result, aluminum that was not attracted by magnetic force will also be attracted by magnetic force

in the final plastic processing step, pure plastic will be dissolved and pressurized into plastic particles or plastic blocks in the branch pipe called briquetting machine, and become granular plastic raw materials, which can be processed by machine processing or raw material recycling technology

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