Durable 3-Layer Polyethylene Coating Equipment with CNC Adjustment and Frequency Control for Fluid Transmission Pipeline Bends

Anti-Corrosion in the form of  3PE is first layer epoxy, second is adhesive layer, the third is PE sleeve wrapping.
Steel Elbow 3LPE Coating Machinery is for curve steel pipe blasting&coating and PE layer wrapping machinery.   It also can make 2PE/FBE coating pipe.2PE,3PE and FBE Epoxy coated steel pipe is widely used in pipeline systems for the transmission of oil, gas, water and other fluids.They have high resistance to corrosive from chemicals, moisture, harmful environment, etc.

Process parameters of winding anticorrosion:
Overall dimension: 20 m X 15 m
Total water consumption: 30 cubic meters
Total power consumption: 450 kilowatts
Total gas consumption: 6 cubic meters/min.
Temperature condition: the temperature inside the workshop is higher than 5 degrees.

Winding anticorrosive steel pipe parameters:
The diameter of steel pipe: 426, 630, 720, 820, 1020, 1220, 1420, 1620
Curvature radius: 4-6D
Bending angle: 15-90 degrees.
Steel tube wall thickness: 8 mm -12 mm
Epoxy powder thickness: ≥170 um
AD copolymer adhesive thickness: 170-250 um
PE layer thickness: 2.5 - 3.7 mm

The 3PE anti-corrosion production line for steel elbows is composed of an L-shaped elbow conveyor, an external shot blasting rust removal machine, a dust collector, pipeline heating equipment, FBE powder coating equipment, PE winding equipment and an electrical control system, etc.
 

Elbow conveyor line

Independent center of rotation drive
Gear ring gear drive
frequency control 
The main parts adopt protective supporting wheel
The supporting wheel is equipped with slide rail, which is easy to install
Fixed angle of self-locking structure of transmission line
Height lift adjustment

Medium frequency heating

Angle handwheel adjustment
Front and rear electric adjustment
The height is adjusted through the conveyor line
Narrow thickness to avoid uneven heating in bending section
If power 350kW
Voltage and current double close regulation

Powder spraying for elbow

Annular dusting chamber
Front and rear electric adjustment of powder spraying chamber
The spray gun swings left and right
CNC adjustment of powder quantity
There are 12 powder guns
U-shaped bottom blowback recovery
Overall material 304 stainless steel
The hard negative pressure of recovery air duct does not deform

Winding machine

Automatic belt locking
One side with corrosion protection
Continuous operation of winding tape
The strip is wound tightly
High degree of automation
Automatic calculation of strip by computer
The deviation of straight pipe from the center does not affect the winding work

If you want to know more you can contact with us. MIa