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PET bottle washing line

01 — Project introduction

PET is one of the most popular and used plastic packaging materials in the world. It is also one of the most dominant waste types in the ocean. However, used PET bottles should not be seen as waste, as they are 100% recyclable. The PET can be heated and molded into numerous shapes. It is a clean, safe, and convenient packaging method. This makes it easy and sustainable to turn PET packaging into a circular economy, also called a closed loop.

02 — Applicable materials

With more than 15 years of experience in PET recycling field, POLYTEC can provide a solution that meets your needs in value and efficiency.

POLYTEC can treat different conditions of PET bottle: Beverage bottles, mineral water bottle, food bottles/jars (salad dressing, peanut butter, honey, etc.).

Raw materials: Beverage bottles, mineral water bottle, food bottles/jars (salad dressing, peanut butter, honey, etc.).

03 — Processing Flow

PET Bottle Recycling Process:

 

De-baling→ Metal Removal→ Label Removal→ Metal Removal→ Bottle Pre-washing→ Optical Bottle Sorting→ Manual Sorting→ Crushing→ Dust Removal→ Flotation Hot washing→ Friction Washing→ Rinsing→ Flushing

Washing→ Drying→ Dust Removal→ Optical Flakes Sorting→ Blending→ Online Inspection→ Packing

 

Ps. A standard sampling of food-grade/filament-grade PET bottle recycling process, equipment configuration and the process will be optimized according to raw materials.

04 — Technical characteristics

Food Grade/Filament Grade Estimated plant parameters:

Input capacity (kg/h)

Required area(㎡)

Install power

(kw)

Required water

(m³/h)

Required steam

(kg/h)

Required compressor air(m³/min)

Man power

1000

1300

550

2

600

3

5

2000

1600

800

4

900

4.5

7

3000

2000

900

4.5

1300

6.5

8

6000

3000

1000

9

2300

12

11

*water consumption parameters are calculated based on using wastewater reuse system.

*PET bottle material composition and factory management level will affect actual consumption .

Food grade/Filament Grade Production consumption table-average energy consumption per ton flakes:

Input capacity (kg/h)

Electricity consumption

(KWH)

Steam

(kg)

Washing detergent

(kg)

Water consumption

(ton)

1000

170

600

12

1.5

2000

165

550

12

1.5

3000

160

500

12

1.5

6000

150

450

12

1.5

Food Grade/Filament Grade PET Flakes Quality Standard Reference Table:
Moisture <1%
Label <15ppm
PVC <30ppm
Inorganic compounds <10ppm
Glue <10ppm
PH 7.5±0.5
PP/PE <15ppm
Metal <10ppm
Total impurity <100ppm-250ppm
*Flake size 12mm
*Flakes size can be specified by customers

05 — Advantages

06 — Unit Introduction

Unpacking machine

When working, a forklift is used to place the bottle bricks on the platform, manually cut and pull out the strapping iron wire, and then the forklift pushes the bottle bricks into the rubber belt conveyor for transportation, and the unpacking speed is controlled by frequency conversion and speed regulation.

Trommel

The effect is to break up the lumps, sift out small garbage and part of the bottle cap.

Pre-washer

It aims to wash away the dirt and adhesive labels on the surface of bottle scraps that are delivered to the washing machine after being scattered by the unpacking machine with high-temperature agent to and deliver the washed bottles to the next process with the double screw.

Label Scrapping machine

The label scrapping machine is designed to scrap the labels attached to bottles. It mainly consists of feed section, rotor drum, nail tray, pedestal, lateral plate, discharge section and transmission device.

Label blower

Due to the weight difference between bottles and labels, labels are separated out by the wind force of the label blowing fan that is equipped to the discharge end of the drum of the blowing machine, brought into the label screen frame and collected by the trolley or blown to the wrapping machine; while bottles are outputted from the other end and delivered to the next process by the double-screw conveyor.

Material &Color optical Sorter

Remove non-pet bottles & color bottles.

Crusher

Wet grinding featured with unhindered feeding, stable output, low energy consumption, low noise, and firm structure is adopted in this production line

Floating Washer

Remove caps

Dewater

Removing dirty water out

Zig-zag label blower

Removing label dust

Hot washer

Smart control washing process

Smart chemical dosing feeder

Smart adding flakes and come out

Smart injecting steam water

Smart set heating time

Dewater

Removing water and dry flakes into 1%

Pipe Drying

Heating, heat exchange area 50 square meters

Vibrating packing Silo

Effective volume: 1.5m³

Hydraulic lifters

DCS intelligent recycling line control system

Upper computer control system:

Features:

①The production process is controlled in real time, and data .

② Monitor the operating status of the equipment in real time

③The system is equipped with an intelligent medical examination module to remind the equipment of regular inspection items in real time to avoid false or missed inspections.

07 — Customer case

08 — Why POLYTEC more suitable for your investment?

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