Este sistema de peletización de copos de HDPE de dos etapas consta de dos conjuntos de extrusoras de un solo tornillo e integra la función de alimentación, plastificación y peletización en un solo paso. El producto final generado por esta máquina de peletización son pellets/gránulos de alta calidad (ver imágenes adicionales a continuación) que se pueden colocar directamente en máquinas de inyección de plástico u otras aplicaciones.
Principio de funcionamiento
Alimentación: The flakes are fed into the extruders by screw conveyors that are managed by VFD. The VFD feeding system halts automatically when the electric current in the extruder is elevated and will only resume when the electrical current returns to standard parameters.
Plastificación y desgasificación: A specialized single-screw extruder delicately melts the pre-compacted material. The plastic scraps are melted and plasticized in the first-stage extruder and then extruded by the second-stage extruder. With this “dual-zone” vacuum degassing system, volatiles such as low molecular weight substances and moisture are effectively removed. This results in more consistent final products.
Filtración por fusión: This system utilizes segmented filtration. The first extruder is tasked with removing coarse contaminants via pre-filtration. A high mesh filter is then applied to the second extruder to eliminate fine particles. This lowers the frequency for changing filtration media and sieves.
Peletización: To convert the extruded plastic into granules, a standard die-face water ring pelletizing system is employed. Once the pellets are formed, an advanced dewatering vibration sieve is paired with a horizontal-type centrifugal dewatering machine to dry the pellets for storage.
Especificaciones técnicas
| Tamaño de la máquina | Motor Power (Compactor) | Diámetro del tornillo (mm) | L/D | Motor Power (Extruder) | Tasa de rendimiento (kg/h) |
|---|---|---|---|---|---|
| SJ80 | 37 kW | 80 | 36 | 45/55 kW | 160-220 |
| SJ100 | 55 kW | 100 | 36 | 90/110 kW | 300-380 |
| SJ120 | 90 kW | 120 | 36 | 132 kW | 450-480 |
| SJ140 | 110 kW | 140 | 36 | 160/185 kW | 500-650 |
| SJ160 | 132 kW | 160 | 34 | 220/250 kW | 800-1000 |
| SJ180 | 315 kW | 180 | 34 | 315 kW | 1000-1200 |
Imágenes adicionales
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