External FBE Coating Equipment,Maneuverable PP Coating Equipment
For Steel PipeINTRODUCTION
3PE coating line is to make anti-corrosion of kinds of steel pipes,
such as single layer FBE, double layer FBE, double layer PE, double
layer PP and 3PE.
The line includes systems of steel pipe transportation, surface
disposal, dust catching, pipe heating, electrostatic spraying,
coating, water cooling, edge cutting, hydraulic and pneumatic
device, detecting and electric controlling system.
Description:
A 3PE (Three-Layer Polyethylene) anti-corrosion coating production
line is a process that involves applying three distinct layers of
protective materials onto the surface of steel pipes. This advanced
coating system is designed to significantly extend the service life
of the pipes, often from a relatively short span of 5-10 years to
an impressive 50-100 years or even longer.
First layer is Fusion bonded epoxy layer (FBE> 100µm), the
second layer of adhesive (AD) 170 ~ 250µm, the third layer of
polyethylene (PE) 2.5 ~ 3.7mm. Present we can made the machinery
for diameter range Φ159 ~ Φ1220.
3PE steel pipe outer coating has a high mechanical strength,
excellent electrical insulation performance. The merits include
high degree of mechanization, process parameters stable, not
pollute the environment, etc. In recent years, the intensive of the
pipeline corrosion engineering has been widely used.
| No. | Name | Set | | A. Derusting Equipment | | 1 | Pipe-converying Equipment | 1 | | 2 | Shot Blast Cleaning Machine | 1 | | 3 | Cyclone Dust Collector | 1 | | 4 | Pulse dust collector | 1 | | 5 | Centrifugal exhaust fan | 1 | | 6 | Rust removal equipment PLC | 1 | | B. Coating equipment | | 1 | Coating transfer equipment | 1 | | 2 | IF heating device | 1 | | 3 | Powder spraying device | 1 | | 4 | Automatic loading dryer | 2 | | 5 | SJ-65/30 Extruder | 1 | | 6 | SJ-180/30 Extruder | 1 | | 7 | Hot melt adhesive extruder die | 1 | | 8 | PE sheet extruder head mold | 1 | | 9 | Hot melt adhesive/PE sheet coating device | 1 | | 10 | Environmental Protection Ventilation equipment | 1 | | 11 | Cooling Spray equipment | 1 | | C.Platform Equipment | | 1 | Steel pipe platform | 1 | | 2 | Post-rust removal transition platform | 1 | | 3 | Product tube storage platform | 1 | | 4 | Hydraulic Equipment | 3 | | D.Groove Equipment | | 1 | PE Beveling Machine | 2 | | 2 | Hydraulic Lifting and Turning Machinery | 1 | | 3 | Hydraulic Equipment | 1 | | 4 | PLC | 1 | | E.Compressed air Equipment | | 1 | Screw Air Compressor | 1 | | 2 | Cold dry machine | 1 | | 3 | Precision filters | 3 | | 4 | Gas tanks | 1 |
The technological processes employed by Huashida Machinery for the
3LPE coating of steel pipes involve a series of meticulous steps
designed to ensure the highest level of quality and durability.
Here's a detailed overview of the process: - Upload Pipes:
- The process begins with the loading of the steel pipes onto the
production line. This step ensures that the pipes are positioned
correctly and ready for processing.
- Pipes Screw Conveyor:
- Once loaded, the pipes are transported through the production line
using a screw conveyor. This efficient system gently moves the
pipes forward, allowing for continuous and uninterrupted
processing.
- Rust Removal via Intermediate Frequency Heating:
- To ensure a smooth and even coating, it's crucial to remove any
rust or impurities from the pipe surface. This is achieved through
intermediate frequency heating, which raises the temperature of the
pipe surface to effectively burn off rust and contaminants.
- Epoxy Powder Coating:
- Following rust removal, the pipes are coated with an epoxy powder
primer. This layer acts as a corrosion-resistant barrier, providing
a strong foundation for the subsequent coatings.
- Outer Layer Solidification & Polyethylene Coating:
- Next, the pipes undergo the application of the outer layer, which
consists of a solidified coating and a polyethylene layer. The
solidification process ensures that the coating adheres firmly to
the pipe surface, while the polyethylene layer provides additional
protection against corrosion and wear.
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