Qingdao Huashida Machinery Co., Ltd.
Pipeline Anticorrosion Thermal insulation Pipe production lineMACHINERY MANUFACTURER
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Polyurethane spraying polyethylene wrapping pre-insulated pipe production line is used for the production of polyurethane prefabricated direct buried thermal insulating pipes, which are widely used in the field of heating, cooling and crude oil transportation.
Our company has independently developed a Polyurethane Spray-coated Polyethylene Heat-wrapped Insulation Pipe Production Line. This equipment is patented in multiple areas and has received a Level 5 rating in technical advancement according to third-party standardized evaluation reports, reaching a leading position in the domestic market. It has also been awarded as the first set of technological equipment in Shandong Province.
The production line utilizes a continuous or intermittent spray coating process, offering high automation, fast production efficiency, and material savings. The system increases the closed-cell rate of the foam, reduces water absorption, and achieves a triple-combined molding structure, ensuring more reliable performance. The products are low-carbon, environmentally friendly, and offer higher economic and social benefits.
This cutting-edge technology not only provides superior product quality but also contributes to a more sustainable and efficient future.
| Range of Application | Production pipeline |
| Applicable Range of Pipes | 206mm-1820mm |
| Processing Capacity | ≤250㎡/h |
| Cleaning Grade: | Sa2.5 |
1. Shot blasting rust removel machine
2. Medium-frequency induction heating furnace
3. Polyurethane spraying unit
4. Single screw extruder and diehead mould
5. Finished pipe ends trimming machine
6. Conveyers, racks and robotics to move and handle the pipe
7. Electrical system and PLC
Rust removal of steel pipe/piece, the hydraulic lifting mechanism is used to transport the steel pipe/piece to the transmission pipe conveying line of the steel pipe shot blasting cleaning line, and the steel pipe/piece is turned and entered the shot blasting room. When the signal of the steel pipe/piece is collected by the internal sensor, the control system commands the shot gate to open, and the pellets are thrown against the outer wall of the steel pipe to remove the rust and impurities attached to the outer wall of the steel pipe. The steel pipe workpiece enters the output roller table, and after shot blasting, the outer surface of the steel pipe workpiece meets the requirements of sa2.5.
