A sorting conveyor is placed at the beginning of the line and PET bottles to be recycled is presorted manually. Foreign matters, particularly PVC bottles are removed by experienced workers. At this stage color separation is done as well. Loading conveyor feeds PET bottles in a regular manner to crushing machine.
Crushing machine converts PET bottles into certain sized PET flakes. Water is fed by spraying into crushing chamber and dirt is removed and pre washing is achieved by this process
An auger at the bottom of crusher collect and carries flakes to next step.
Next step is a pool which is separating caps and labels from flakes. Caps and labels are mostly made of polypropylene (PP) and float on water while PET material sunk. Sprays which is located on pool force cap and label pieces to overflow into removal auger.
Two augers placed at the bottom of the pool carries PET flakes to the end of the pool while removing PP material by a mixing action. PET flakes enter into a tunnel at the end of the pool and leave pool by rising with push force of augers. Vertical separator removes dirt and water from PET flakes surface and conveys flakes to chemical washing unit. In chemical washing unit PET flakes are washed with hot water and chemicals in order to remove glue on surface of PET flakes. Friction action in chemical washing unit help remove glue and dirt. Digital dosaging pump with pHmeter keeps Ph level of the solution in certain level ensuring washing action is effective all the time.