There are various types of waste woven bags and different shapes. Enterprises selling waste woven bags have created many recycling methods in practice. Here are some examples for reference.
Recycling of used woven bags
Waste woven bags are one of the largest plastic products. They have a wide variety of products and generally have a short service life. They are one of the main types of recycling and recycling. Below are examples of usage and form.
Waste woven bags, waste woven bags mainly include mulching film and shed film. The mulching film is mainly PE film. The shed mode includes PE, PE/EVA, PP film. When recycling, PE and PP film should be distinguished. Waste woven Bags are generally dirty and often contain soil, sand, grass roots, iron nails, iron wires, etc., iron impurities should be removed and cleaned. The recycling method of enterprises selling waste woven bags is mainly granulation. If, manual sorting is available , When cleaning conditions, the waste woven bags after cleaning and drying can be directly used to produce plastic products, such as basins, barrels, plastic flanges, etc., by the hot extrusion method.
The uses of recycled pellets from waste woven bags are as follows:
1. PE recycled pellets, PE recycled pellets can be used to still produce agricultural film, can also be used to make fertilizer packaging bags, garbage bags, agricultural recycled water pipes, fences, tree supports, pots, barrels, garbage cans, geotechnical materials, etc.
2. PP recycled pellets, PP recycled pellets can be used to produce heavy packaging bags, agricultural water pipes, shoe soles, and other packaging waste woven bags. The materials for packaging waste woven bags include cellophane (Sailuolu), PE, PP, PP, EVA , PVDC, PA, PET and various composite waste woven bags. The single-layer packaging film of one material, after sorting and washing, can be directly made into plastic products like waste woven bags or made into various products after granulation. Composite waste woven bags include composite waste woven bags of different plastics and waste woven bags made of plastic and paper, aluminum foil, and other materials. The recycling process after recycling is more complicated, such as: multi-layer plastic composite waste woven bags, multi-layer plastic Composite waste woven bags include PE/PP, PE/EVA/PE, PE/adhesive/PA/adhesive/PE, PP/PVDC, etc. Before recycling, different materials must be separated first. Solvent separation method can be used for separation.
Paper-plastic composite woven bags. The paper-plastic composite woven bags need to be separated from paper and plastic before recycling. This is also the method of paper-plastic composite separation. The separation equipment is a chrome-plated hollow barrel with electric heating. A hollow cylinder with blades, the barrel and the hollow cylinder rotate in opposite directions, the crushed paper-plastic mixture is added to the barrel, and the plastic on the heated mixture in the barrel is melted and discharged from the lower part of the barrel. In the hollow cylinder The air will take away the exhaust gas.