Slice crushing technology progress of waste PET bottles

Plastic bottle recycling has already formed a complete industrial chain, but plastic bottles of crushing technology has been no breakthrough, efficiency is relatively low. To introduce the following section crushing technology progress of waste PET bottles. Bottles of slice broken is a key step the recycled plastic. After separation and separation, the waste beverage bottle bottles must be cut into small pieces of rule, shape, size, with convenient transportation and the subsequent processing of metering and charging. Usually use the shredding machine or dicing machine to slice the waste bottles of bottles. PET bottle only a broken, first carries on the coarse crushing after segmentation, eventually become 1. 0 to 1. The size of 5 cm pieces. The crusher exit installation has a diameter of 1. 0 to 1. 5 cm sieve to control the size of the fragments. PET pieces usually USES centrifugal hydroextractor make moisture content down to 2%, then through belt type or tube dryer dry, the moisture content down to zero. 5%. In recent years, the development of the recycle dedicated special crushing device, such as: micro fiber reinforced plastic crusher, the size of the long tube mill, air vortex particle collision crusher, prevent friction materials and equipment of hot airflow crusher, etc. ; In addition, has also developed processing film both wash and crushing function water crushing technology. For fragmentation exists in metallic iron, using magnetic separation; The adoption of metal aluminum, eddy current separation. In addition, still can use high voltage make PP, PE charged, to separate pieces of PP and PE and other plastic pieces.