Twin screw cage dryer
Twin-screw cage dryer is a kind of equipment which uses twin screws to stir and convey materials and dries them by hot air. It is mainly composed of drive device, transmission device, feed port, discharge port, shell, twin screw, cage, heating device and other parts.
Working principle:
The material enters the dryer from the feed port and is grabbed by the twin screws and pushed forward.
During the advancement process, the twin screws stir and turn the materials, allowing the materials to fully contact with the hot air, thereby improving the drying efficiency.
The hot air enters from the bottom of the dryer, passes through the material layer, takes away the moisture in the material, and finally is discharged from the top of the dryer.
The dried material is discharged from the discharge port.
Features:
The twin-screw design improves the mixing and turning effects of the materials, allowing the materials to fully contact with the hot air and improving the drying efficiency.
The equipment has simple structure, convenient operation and low maintenance cost.
Suitable for drying various granular and powdery materials.
The following pictures are all taken on-site by our company without any modification (reproduction is prohibited without permission)
Dryer structure components |
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Heating tube part. High-power and high-quality electric heating rod |
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Independent electric control box. Real-time current and voltage display. Electronic temperature control display. Heating temperature can be adjusted according to the actual material humidity. |
Attached is the melting point of common materials (the data is for reference only, the actual properties of the materials at the production site shall prevail) |
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Material Name |
Melting point |
PP |
164℃~170℃ |
POM |
165℃ |
PC |
The softening temperature is 215°C, the flow temperature is above 225°C, and the melt viscosity is too high at 260°C or below. |
PBT |
225℃~235℃. |
PA6 |
215℃~221℃ |
PA66 |
260℃~265℃ |
ABS |
160℃ |
PVC |
The softening point is close to the decomposition temperature. It starts to decompose at 140°C and decomposes more rapidly at 170°C. |