How to choose plastic film woven bag drip irrigation belt? Plastic granulator

When recycling and granulating waste plastic agricultural films (such as woven bags and drip irrigation belts), equipment selection must be based on a comprehensive consideration of raw material characteristics, process adaptability, and long-term operating costs. These materials are mostly PP/PE substrates, which contain sediment, pesticide residues, fiber impurities, and are prone to aging. They have high requirements for the equipment's anti pollution ability, plasticization uniformity, and maintenance convenience. The following are specific selection suggestions:

Match core equipment types based on raw material characteristics

PP/PE woven bag recycling

Characteristics: Strong fiber orientation, easy entanglement, high impurity content (especially in sandy soil)

Recommended configuration: Double stage exhaust granulation line

First stage: forced feeding+high torque screw (L/D ≥ 32) to prevent bridging

Second stage: Vacuum exhaust system (vacuum degree ≤ -0.085MPa), effectively removing moisture and volatile substances

Supporting front-end: three-level dry and wet crushing+vibrating screen+metal detector, reducing the content of impurities in the feed

Drip irrigation tape recycling

Characteristics: Mostly made of LDPE/LLDPE, with thin walls, easy adhesion, often containing sediment and fertilizer residues

Recommended configuration: Single screw+water ring granulation system

The recommended compression ratio for screws is 2.8-3.2 to avoid excessive shear that may cause melt fracture

The pressure fluctuation of the mold head is controlled within ± 0.3MPa to ensure that the particle roundness rate is ≥ 98.5%

Equipped with automatic screen changing device (40-60 mesh dual station) to reduce the frequency of downtime and screen changing

Laizhou Longjun Machinery Co., Ltd. Plastic Machinery Products: Plastic Recycling Machine, Plastic Granulator, Plastic Crusher, Plastic Cleaning Machine, Dehydration and Drying Machine, Vertical Blender, Automatic Feeding Machine, Automatic Feeding Machine, Plastic Roll Cutting Machine, Smoke Treatment Equipment, Electromagnetic Vacuum Burning Machine, Granulator Screw Barrel, Automatic Sharpening Machine, Mobile Storage Bin, Blowing Strip Machine and other equipment