PET CHIPS CRYSTALLIZATION & DRYING

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Характеристики

 

 

PET Chips Conveying & Drying System

 

Amid the spinning process of polyester filaments, PET chips melted under high temperature shall cause polymer degradation out of high moisture content in the chips. Such degradation shall lead to molecular chain breaking, thereafter filament breaking during the spinning process. Thus, the moisture content for wet chip, normally water content 0.4%, must be reduced before spinning, especially for spinning fine denier and super fine denier yarn, the moisture content should be lowered than 25 PPM. We can guarantee the final chip moisture content lower than 20 PPM (BM Type) or 25 PPM (Rosin Type) with our technology. We have provided more than 1000 sets of drying
equipment with various capacities from 50Kg/h to 5000Kg/h to clients home and abroad. The equipment in this offer is a special plant used for the PET chips conveying, crystallization and drying. It is suit for POY, FDY production and plastic manufacture.

 

Technical Data:  (Sample data)

 

Item	Specification
	NO.1	NO.2
Drying capacity	600kg/h	700kg/h
Using Range	300~600kg/h	350~700kg/h
Chips specification	φ3×3mm or 3×3×2.5mm or 2×4×4 mm
Bulk density	0.75~0.8
Initial moisture	≤0.4%
Final moisture	≤25ppm
Crystallization Condition	Chips are in the continuous fluid state and work on airflow completely. Chips should be pre-crystallized continuously and evenly without chip-staying period deviation and material block.
Drying time	4~6 hours
Dry Air Condition	Dew-Point: <= -70 ℃, Temperature: (155-175) ± 1℃
Final Chip's Temp.	145-165℃
Drying Condition	Continuous counter-flow column dryer, without chip-staying period deviation, without short circuit of chips and air, form steady piston flow.
Install Power	About 125Kw		About 155Kw