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1650mm Continuous Hot Dip Galvalume Line For Cold Rolled Steel

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1650mm Continuous Hot Dip Galvalume Line For Cold Rolled Steel
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Video Outgoing-inspection:: Provided
Type:: Heat Treatment Furnace
Key Selling Points:: Accurate Temperature Control
Name:: Zinc Galvanizing Process
Combustion System:: High Speed Pulse Combustion System
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Cold Rolled Hot Dip Galvalume Line


1650mm Continuous Galvalume Line


Zinc Continuous Galvalume Line

Basic Infomation
Place of Origin: China
Brand Name: Xinlingyu
Certification: IS09001:2015 , ISO 45001:2018
Model Number: None
Payment & Shipping Terms
Packaging Details: standard export packing
Delivery Time: 90days
Payment Terms: L/C, D/A, D/P, T/T
Product Description

Continuous Hot Dip Galvanizing Production Line


The continuous hot - dip galvanizing/galvalume line is a set of equipments that plating a layer of zinc or aluminum alloy on the strip while in high temperature. The production line was composed of uncoiler, welder, storage tank, degreasing section equipments, continuous annealing furnace, zinc pot, air knife, skin pass, tension leveler, oiler, shear, recoiler and other equipments.
Raw Material:
Cold-rolled hard-state steel coil, SPCC, SPCD
Coating weight:
60-275g / m2 (double-side) ± 5g / m2 adjustable
Steel Coil weight:
Max 25 tons
Product grade:
100,000-300,000 MT/Y
Energy saving:
Heat recovery system from waste gas
Annealing reduction, galvanizing, finishing, straightening




Sealed room structure: Stick profiling synthetic resin plate on the steel structural frame,can realize anti-corrosion more than twenty years, is custom-made sealed room plate only in our company. Insert transparent window on the sealed room wall, it is benefit workers who are on the steel structure platform to observe and operate working condition. Install flue on one side of acid tank wall and the distance to ground is 2.5m high, suction acid fog to acid fog scrubbing tower by induced draft fan .




1.2.2Purification tower design parameters:



The acid mist flue acid mist washing tower in closed indoor treat acid fog produced pickling. 3 sets of collection system collect production of acid mist according to the actual capacity of the facilities, again through the alkali liquor spray and purifying washing system to purify it.


Ⅰ.Production line technology key points:
The project is consist of three system, is automatic hot dip galvanizing, environmental control system, logistical system, total project is based on environmental protection, energy saving and reduce manpower.
Key technology:
1.A project of fully automatic environmental protection hot galvanizing production line
2. Auto logistical control system, can go on real time adjustment according to production beat, use resource efficiently.
3. furnace adopts clean energy to heat zinc pot, furnace temperature automatic control, prolong the service life of zinc pot
4.All waste gas collection closed, centralized treatment and discharging standard, zero emission.

Ⅱ. Technical parameters
1. Zinc pot size:non-ferrous pot, ceramic pot 4×1×1m, capacity is about 26t.
2. Output:1000t/year
3. Type of heating: electrical heating
4.Work shift: 3 shift(8 hours/shift, year working time 300 days,3 shifts,day working time 20h)
5.Layout:loop shape,three across span is 6.5m, length is 36.4m,details in layout plan.
6. Electric and water
6.1 The max power of electrical equipments is about 500Kw.
6.2 In average 1ton production need 0.01m3 water, the pressure can't lower than 0.2MPa.
6.3 The PH level of water is 6.5 to 8, tap water, river water or well water is adoptable,mainly for supplementing consumption during production.
7. Environmental protection treatment system:waste gas and waster solid treatment for producing healthily.
8. Compressed air: bleed pressure 0.6Mp/cm2, air demand 6m3/h.
Ⅲ. System layout
1. Layout description
1.1Considering rationality of each hot dip galvanizing tanks and loading&unloading workpiece,the whole productionline adopts 1 across,6.5m,factory layout.Loading*unloading in one across,raw material&finished products and across connection in one across,primary hot dip galvanizing equipments in one across.(details in CAD)
1.2 Manaully loading and unloading workpiece, other operation all run automaticlly.
1.3 All automatic equipments are set hand/automatic operation.
2. Plane layout diagram


Ⅳ.Technological process
1.Hot dip galvanizing technological process

2. Fully automatic operation process action

2.1 operating manual crane to loading position,and manually hang in group, signal when completion;

2.2 pre-treatment full automatic roller galvanizing equipment lift workpiece into degreasing tank, rinsing tank, acid tank and fluxing tank successively, then put into unloading area;

2.3workiece in unloading area enter into loading basket after be leaded into drying passage by auxiliary material, workpiece is lifted by unloading machine into zinc liquid;

2.4 immersing into zinc liquid through immersing zinc system, lifted by centrifuge and centrifuge after satisfy immersing time and then move to unloading area;

2.5 pour workpiece into blasting zinc, cooling and passivation;
2.6 finally pour into discharge conveyor belt, storage after testing.

Ⅴ.Production line basic equipment, performance and parameters

1)Automatic running transmission system

1. The equipment performance and component configuration

1.1 gantry type automatic travelling craneThe travelling crane is in the pretreatment seal room, travelling between both sides of tank.

Equipment parameters:

①main engine: L31m(two rails length)*W2.3(two rails center distance)*H4.5m(the surrounding auxiliary facilities)

②gantry type middle rail single pole pickling crane: 1set, level travelling V=6-15m/min(frequency control), lifting operation V=5-15m/min(frequency control), lifting height is 3200mm, lifting quality≤1000kg(contain pole, rack and piece weight)

③running pitch time:10min(above 10min can adjust)

④lifting height of material loading erector is 1m

1.2 auxiliary material trolley and drying gallery:




1.3 discharging conveyor




2) equipment, facility corrosion prevention.

1. tank anti-corrosion:
Tank structure: make concrete foundation on the ground and preset anchoring strengthen for external use.
Tank parameters:

Name Dim(L*W*Hmm) Qty Function
degreasing tank 1580*700*1000 6sets Remove oil and rust
acid tank 1580*700*1000 3sets Remove rust
Rinsing tank 1580*700*1000 4sets  
Flux tank 1580*700*1000 1set Active surface of workpiece

2. Equipment base corrosion
Flux processing system ground anti-corrosion, pretreatment tank foundation ground anti-corrosion, cooling and passivation tank ground anti-corrosion.
Anti-corrosion: Apply 5 mm FRP on surface of concrete structure
3) Zinc pot and heating control system
1. Zinc pot and heating system:
1.1 Zinc pot
According to the geometry size and output demands of workpiece galvanized, the size of galvanizing tank(length ×width ×depth ×thickness): 4000×1000×1000×300 , high temperature resistance castable once casting to form zinc pot, capacity is about 18t, round bottom. Its guarantee period is 4 years, normal use

1.2 Zinc tank heating equipment: to satisfied to production re quirement and consider molten zinc speed, is loading about 324KW by calculated. The equipment is adopting galvanizing spec ial heating rod made by international advanced silicon carbide rod, high hot efficiency, long servicing life, completely replace outdated quartz tube protection cover resistance wire heating. Each heater power is 18KW,380V, Y connection, total 18 groups. Each heater use SSR module, intelligent instrument control temperature by automatic accommodation. High controlling precise, trouble-free, maintenance-free.
1.3 Flux tank heating
The inner circulation electric heating system.
Specifications and technical parameters:

Rated flow: 40 ~ 50 m3 / h heating temperature: 75 ℃
In and out of dimeter: φ25 ~ φ50

2. Weighing system:
Automatic control, the maximum is 100kg/basket, precision is ±2kg
3. The system of putting into pot
Whole equipment, record the into pot time, 1 basket/min(under immersing time allows premise)
4. Immersing system in the pot:
Transmission equipment, control immersing time according to production beat.
5. Out of pot centrifuge system
Whole equipment, automatic control, with auto centrifuge function
6. Galvanizing basket turnaround system:
Control turnaround of basket according to beat automatically
Above total power is 20KW
4) Post-treatment:
1. Blasting zinc system:
Loading and unloading material automatically, power is 2KW
2. Cooling system:
Loading and unloading material automatically, power is 2KW
3. Passivation system:
Loading and unloading material automatically, power is 2KW
4. Spin-drying system:
Loading and unloading material automatically, power is 5KW

Ⅵ.Environmental protection equipments(Zinc dust,waste water and waste acid)
1. Hydrochloric acid mist and exhaust gas treatment system
Hydrochloric acid mist i mainly from the acid washing tank and flux tank vapor, is mixture of acid mist and steam.
1.1Technology design


1650mm Continuous Hot Dip Galvalume Line For Cold Rolled Steel 0

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