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Steel Pipe Galvanizing

For steel pipe galvanizing, the black pipes are sent into acid pickling line for pickling, rinsing, and fluxing, to prepare the surface of steel pipe for easy galvanizing; second, dry up steel pipes; third, hot dipped galvanizing; forth, draw up and pipe inner/outer blow; then, post-treatment.

Description

Pipe galvanizing

For steel pipe galvanizing, the black pipes are sent into acid pickling line for pickling, rinsing, and fluxing, to prepare the surface of steel pipe for easy galvanizing; second, dry up steel pipes; third, hot dipped galvanizing; forth, draw up and pipe inner/outer blow; then, post-treatment. Follows one example,

After acid pickling line, the pipe galvanizing machine line consists of following equipment:


1.  Drying furnace

image001

After dipping, pipe bundles are unfolded on inclined skids, the upload mechanism send pipes into drying furnace (using residual heat of galvanizing furnace) one by one.

Pipe uploading platform: steel frame

A group of conveying equipment

1.)Three rows of conveyor chain

2.)A group of chain conveying mechanism which consists of brake motor, planetary cycloid reducer, transmission shaft and chain wheel support, step walking type.

A drying furnace

1.)Furnace: Reinforced concrete exterior wall with refractory lining

Size:6882(length)×10000(width)mm

2.)A group of heat-exchange tube is located in chimney.

3.)A group of furnace covers which is steel frame with refractory lining.

4.)A group of airing mechanism

5.)One circulation fan

Flow:10478 NM3/hr

Temperature:Around 150℃

Power:4 KW

Remark: The bricks and labor for building cement foundation should be offered by buyer.


2.  Galvanizing furnace

1.)Galvanizing furnace: Steel material, refractory lining。

2.)Zinc-leak pit

The pit can contain 300 mt zinc. If the zinc pot leak, liquid zinc can flow out from the bottom of the furnace and collected into the zinc-leak pit, avoiding the leak burn the chimney.

image003


Content

Size description

Inner size of zinc pot::

10.0m(length)X 1.8m (width)X 2.6m(depth)

Max zinc volume(about):

300 mt

Production capacity(Max.):

12-19 mt/h(450ºC 时Under the   zinc liquid temperature of 450ºC)

Fuel:

Natural gas (pressure: 1 Bar) supply   pressure: 1 Bar  and Diesel Operated ( Duel Fuel )

Calorific value:

8600 Kcal/m3

Max natural gas consumption:

300 m3/hr

Burner:

High speed burn-mouth

Fuel consumption:

productivity 16 ton/hour,< 16 M^3/hr

Number of burner:

6

Position of burner::

Diagonal, symmetrical

Power:

380V/3P/50HZ Should be 400V OK

Galvanizing furnace control system:

Automatic PLC control system

Zinc liquid temperature :

450 ℃


3. Zinc pot

Size:2600(Depth)×10000(Length)×1800(Width)mm(inside effective size)

Weight: 30mt

image005_副本


Material: Low carbon silicon steel

Thick steel plate structure on the top of pot, round angle structure at the bottom

The welding seam on the pot is tested by Ultrasonic test, no slag inclusion, no air hole inside.

Mark: All the equipments in the zinc pot are made from XG08 or 05F steel.


4. A set of zinc-dipping device

-- One set of dipping equipment, gear type, three pieces of gear plate for one set.

-- One set of pneumatic mechanism for sweeping pipes. It contains 3 pipe-receiving guide rails and pneumatic driving equipment.

-- Steel frame

-- One set of lifting equipment which consists of a hook and a starting actuating device.

--   Dipping actuating device, gear type.

Motor:5.5KW

image007


5. Dragging-out device

-- Permanent magnet with actuating device, motor: 4Kw frequency adjusting speed

-- Height adjusting device for big magnetic roll

Transmission motor   Power: 1.1KW

Outer blow ring, it is suitable for all the pipe sizes

-- One set of frame, used for lifting the dipping device, actuating device and big magnetic rolls

image009


6. Draw-up device

1.)A group of support

2.)A set of roll-track in

-- 5 sets of magnetic rolls

-- 5 sets of normal rolls

-- 1 set roll-track driving equipment (it supply strength for 13 sets of rolls)

Dragging speed:20-80m/min

Motor: 4KW

image011


7. Inner blow device

-- Steam blow for pipe size between Φ21.3 to Φ33.3

-- Steam guide rod blowing for pipe size between Φ48 to Φ219

-- Inner blow carriage, clamping device, chain, guide rod, high temperature huse

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8.Plural movable mechanism

image015

- One set of walking beam with magnetic gear plate, motor: 4Kw

-- One swing beam

Pneumatic driving, the tube can be swing to horizontal position and pour the pipe into water cooling tank.


If you have interest on our machine and service, please contact us, amanda@machine-steel.com


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