Expertly Designed Plastic Washing and Recycling machine for PET
Bottle Washing line
with advanced PET bottle recycling and cleaning, ensuring the
production of superior- quality recycled PET flakes. by leveraging
our understanding of the unique attributes of PET bottle bales .
PET bottles that are compressed to bales or briquettes. In order to
have clean flakes, the PET bottles have to pass through a complex
and multi-stage several procedures.
Knowing main points to helps you in good results before choose
advanced PET bottle washing machine
shredding or crushing or granulators: in this step, pre-shredding a compressed PET or briquettes
directly, make sure the blades are always sharp is a top priority
in PET recycling. This practice not only improves the efficiency of
the granulation process but also helps to maintain the overall
quality of the recycled PET flakes.
Pre-washing: The pre-washing machine convert most, if not all, paper into pulp
which will go with the water through the final screen. Pre-Wash on
bottles can remove most dirt and contaminant efficiently and save a
lot of water cost and chemical cost downstream in flakes wash; On
the other side, pre-wash on the flakes, it enables flakes come out
with paper and surface dirt almost free, before going to a water or
buffer tank to be dosed into first sink-float tank for separation.
Floating washing: The meaning of washing is take a flake, and heavily brush it with
something, for a certain period of time, better if using hot water
and some detergents. A caustic solution is also needed for a better
removal of contaminants such as glues and oils.
Glue itself is not a contaminant but, leaving it into, makes
turning the color during extrusion to brown, because melting point
is a lot lower so its removal is compulsory. Washing is performed
using a caustic solution plus the friction applied by a washing
machine. This machine detaches the glue that is conveyed outside by
means of the caustic solution continuously filtered by a filtration
system kept at the desired processing temperature by a heat
exchanger.
Drying or Centrifugal drier : In PET recycling, effective drying of the plastic flakes is
crucial for achieving high-quality results. It will remove moisture
with in 5% by drying system or centrifugal drier.
Friction washing: when do PET bottle washing, it need to add the caustic soda to go
in touch with the glue and detach it from the surface of bottle
and, using the proper water flow carry it out caustic soda from the
machine. By the friction of the rotor are making, water or caustic
heats up increasing the effect of caustic and therefore decreasing
the residence time needed to remove the glue. All remaining labels
which are still around, are detached from PET and come loose
therefore a second sink-float tank is required to complete the
washing steps.
Technical Parameter:
| capacity (kg/h) | power installed Kw | required area M2 | manpower | steam volume(kg/h) | water supply m3/h |
| 1000 | 490 | 730 | 5 | 510 | 2.1 |
| 2000 | 680 | 880 | 6 | 790 | 2.9 |
| 3000 | 890 | 1020 | 7 | 1010 | 3.8 |
Notice: the power and requied area have changed, it will according
to the whole production line design.
PET flakes quality reference table:
| Contamination V.S. Output Grade Application Comparison |
| Limits Contaminant | Fiber | Sheet | Food |
| Total Contamination | 100 ppm | 50 ppm | 5 ppm |
| Chemical Residual | 100 ppm | 30 ppm | 5 ppm |
| PVC Residual | 30 ppm | 10 ppm | 100 ppb |
| A.A. | N/A | 10 ppm | 10 ppb |
we make and design Washingplants for wet recycling of plastics
consisting of cutting units / wash units / separation units /
drying units) which located in zhangjiagang city china manufactures
and sells complete washing lines for the recycling of plastics
waste. Prior to re-pelletizing the plastic waste must be size
reduced, washed and if necessary foreign materials separated.
Plastic washing lines, produce granules or flakes with a high
quality even at today`s required outputs. Materials which can be
recycled are for example:
industrial, agriculture, domestic, thin and stretch films
PET bottles
bottles and containers made of HDPE
tanks, bottle cases, rubbish bins
PVC window profiles, car battery cases
