Polyurethane Spraying Prefabricated Insulated Steel Pipe Automatic Production Line
Description
HDPE Jacket Pipe Extrusion Line is high-efficient with high speed and energy saving for producing HDPE thin wall pipe, which is used as protective cover of PU foam thermal Pre-insulated Pipe according to international standard.
The HDPE jacket pipe is produced by vacuum calibrating method with smooth internal and external wall, long service life, good anti-corrosion insulation and mechanical performance.
Equipment list and specification
| 1 | Vacuum loader | Vacuum automatic feeding |
| 2 | Hopper dryer | Hot air drying |
| 3 | High-efficiency single screw extruder | Adopt German new-generation barrier screw, with higher efficiency, 10% energy saved. |
| 4 | Die head | Multi-layer helical distributing pipe dies |
| 5 | Vacuum calibration tank | Rapid Vacuum calibration, pipe with smooth surface and uniform wall thickness |
| 6 | Hauling machine | By tracks, mechanical clamping |
| 7 | Cutting machine | Dust-free planetary cutting |
| 8 | Discharging Frame | Free to move |
| 9 | Siemens PLC | Most professional plastic machinery control system in the world |
Working Conditions
| Electric source | 3 380V(-10%,+5%)50Hz |
| Total power | ~160kW |
| Cooling water | ≤20ºC,≥0.3Mpa , 26~30 m3/h |
| Compressed air | 0.4m3/min ,>0.5MPa |
| Dimension | 24*3*3m |
| Material | HDPE granules |
Die-head is mainly composed of mandril, neck mold, spiral body, cover, die-head body, bolts, and heating rings. The inside surface touching with plastic materials is polished and chrome plated to ensure plastic materials flow smoothly and to ensure no rusting. The uniformity of pipe wall thickness can be adjusted by bolts. The copper calibrating sleeve fixed in die-head is mainly used to cool down the fresh pipe and to calibrate the pipe outer diameter.
Production range: pipe dia. 110-2000mm
| Style | PE-110/600 | PE-365/760 | PE-655/1380 | PE-960/1680 | PE-1054/1860 |
| Main Extruder | SJ-75/33 | SJ-90/33 | SJ-120/33 | SJ-150/33 | SJ-150/33 |
| Pipe diameter | Φ110-600mm | Φ365-760m | Φ655-1380mm | Φ960-1680mm | Φ1054-1860mm |
| Capacity | 250-350kg/h | 400-500kg/h | 700-900kg/h | 1000-1200kg/h | 1000-1250kg/h |
| Installed power | 160kw | 240kw | 480kw | 580kw | 580kw |
| Length | 26m | 32m | 36m | 40m | 45m |
Main machine- High-effeciency single screw extruder
---Single screw is with barreir & mixing head; Barrel is new model with slotting (channel), Both make security of good jellification, large output and stable performance.
Controlling system
The complete line could be controlled by PLC, with good human-machine interface, all technical parameters could be set and indicated by touching screen. Controlling system is designed according to the customer; S requirement, to be with PLC, or without.
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