Product Description:
The polyurethane sprayed polyethylene thermal winding preinsulation pipe production line independently developed by Huashida, consists of three parts: External shot blasting and derusting collector production line, polyurethane spraying production line, and PE winding production line. The line has a number of national patents, and the third-party standardized evaluation report has a technology advanced level of 5, reaching the domestic leading level. And won the first set of technical equipment in Shandong Province.
The line adopts continuous spraying production process. High automatic, fast production efficiency, saving raw materials, increased foaming and closed cell rate, lower water absorption rate, trinity molding, and more reliable performance. Products with low carbon environmental protection have higher economic and social benefits.
Producing technology flow of the polyurethane coating steel preinsulated pipe equipment:
- Remove rust from steel pipe surface
- Preheat the steel pipe to get it ready for polyurethane spraying
- Spray polyurethane evenly on steel pipe outer surface
- Wrap melted HDPE strap around the PU foam
- Trim the pipe ends
Features:
Dust removal meets environmental standards:
By adopting an intelligent shot blasting and rust removal scheme, the equipment can be opened sequentially and self-locked, the shot blasting motor can save energy through frequency conversion, the sand volume can be set according to the pipe diameter, the air washing system can clean the shot sand, and the plug type can quickly change specifications. The three-level dust removal meets environmental protection standards.
Suitable for the production of large-diameter insulation pipes:
By adopting a high load-bearing spiral conveyor line, the polyurethane foam spraying and polyethylene winding processes are continuously carried out, which has the advantages of high efficiency, energy saving, speed, and stability. It is suitable for the continuous production of large-diameter insulation pipes and saves investment in transportation equipment.
Automated operation of production lines:
Realizes automatic processing of upper and lower pipes. The conveyor line is equipped with upper pipe sensors, automatic acceleration tracking sensors, automatic acceleration detachment sensors, detachment confirmation sensors, and automatic descent sensors to ensure the automated operation of the production line.
Spraying saves materials:
The online spraying speed of pipelines is fast; Constant intermediate frequency power, infrequent on/off, minimal impact on the power grid, balanced temperature, and energy conservation; Continuous spraying saves raw materials, and the head and tail of the steel pipe are automatically connected to ensure consistent surface thickness during spraying.
Efficient extrusion of pipelines:
Utilizes efficient and energy-saving extruders for extrusion, and employs mechanical clamping devices for winding and compacting; Automatic cutting, triple cutting of anti-corrosion coating, automatic pipe removal during offline production, accelerating detachment.
Automated precision machining of pipeline interfaces:
Centralizes multiple processing steps on a single device for automated processing, achieving precise control over the size, angle, and blunt edge dimensions of the pipe opening.
Technical Parameters:
| Steel pipe diameter (mm) |
Thickness of insulation pipe (mm) |
Diameter of outer protective tube (mm) |
Minimum wall thickness of outer protective layer (mm) |
| 500 |
30-60 |
580-640 |
5.6 |
| 630 |
30-60 |
710-772 |
6.6 |
| 710 |
30-60 |
790-850 |
7.2 |
| 800 |
30-60 |
885-950 |
7.9 |
| 900 |
30-60 |
980-1054 |
8.7 |
| 1000 |
30-60 |
1090-1155 |
9.4 |
| 1100 |
30-60 |
1190-1250 |
10.2 |
| 1200 |
40-100 |
1316-1436 |
11 |
| 1400 |
50-100 |
1538-1638 |
12.5 |
| 1500 |
50-100 |
1638-1738 |
12.5 |
Applications:
District Heating Systems
Main pipelines for urban central heating networks
Thermal energy transmission lines for district energy stations
Retrofitting projects of heating networks
Oil & Gas Transportation
Crude oil & refined product pipelines
Long-distance natural gas transmission lines
Oilfield gathering pipelines
Chemical Industry
Chemical medium transportation pipelines
Cryogenic fluid transfer (e.g., LNG)
Corrosive fluid delivery systems
Municipal Engineering
District cooling system pipelines
High-temperature hot water supply networks
Steam pipeline systems
Special Applications
Pipeline insulation in extreme cold regions
Direct buried underground pipeline projects
River-crossing and other challenging terrains
FAQ:
Q: What is the brand name of this Polyurethane Spraying Foam Preinsulated Steel Pipe Making Machine?
A: The brand name is Huashida.
Q: What is the model number of this machine?
A: The model number is 508-1620.
Q: Where is this machine manufactured?
A: This machine is manufactured in Qingdao.
Q: What certifications does this machine have?
A: This machine is certified with CE and ISO9001:2008.
Q: What is the minimum order quantity for this machine?
A: The minimum order quantity is 1.
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