Wastewater Treatment System for Hot Dip Galvanizing Production Line
One Stop Service Zinc Kettle Supplier
We supply reliable, high-performance, environmentally friendly,
technological, and modern galvanizing factories.
Sources of Wastewater
The wastewater mainly comes from the rinsing water tanks and acid
mist absorption tower.
Characteristics of Wastewater
This kind of wastewater is acidic (pH=2-3). The COD concentration
is not high but contains metal ions (iron, zinc, etc.) and
suspended matters. Therefore, if it is discharged directly without
treatment, it is very easy to cause water pollution and cause
greater harm to the surrounding environment.
Treatment Effect
The treated wastewater can be reused in the rinsing process or
discharged directly.
Effect Analysis
| No. | Process | Wastewater Discharge Standard (mg/L) |
|---|
| 1 | Waste Water Inlet | 2~3 |
| 2 | Regulating Tank | 2~3 |
| 3 | Oxidation Reaction Tank | 8~9 |
| 4 | Filter-press | 8~9 |
| 5 | Filter | 8~9 |
| 6 | Removal Efficiency | -- |
Our Services
- Design zinc kettle: choosing the best dimension for the galvanizing
kettle according to the plant size, material size, and dealing
capacity
- Plant layout: arranging the plant according to the land size,
environmental requirement, and galvanizing process
- Civil work design: supplying calculations and building drawings in
steel and concrete
- HDG equipment: manufacturing of galvanizing factory equipment from
A to Z, including all the necessary equipment and auxiliary
equipment
- Installation and commissioning: offering installation service and
users' guidance, supply of galvanizing chemicals and adjustment
technology
Main Equipment
| No. | HDG Process | Equipment | Use |
|---|
| 1 | Pickling | Enclosed pretreatment workshop | Collect acid fume |
| 2 | Pickling | Acid fume treatment equipment | Environment friendly |
| 3 | Pickling | Pickling electric hoist/crane | Transfer |
| 4 | Rinsing | Wastewater treatment equipment | Environment friendly |
| 5 | Degreasing | Waste heat recycling system | Save energy |
| 6 | Rinsing | Wastewater treatment equipment | Environment friendly |
| 7 | Fluxing | Waste heat recycling system | Save energy |
| 8 | Fluxing | Iron removal equipment | Recycling |
| 9 | Galvanizing | Galvanizing furnace body | For heating |
| 10 | Galvanizing | Zinc kettle | Place zinc |
| 11 | Galvanizing | White fume fixed hood | Collect fume |
| 12 | Galvanizing | White fume treatment equipment | Environment friendly |
| 13 | Galvanizing | Bridge crane/electric hoist | Transfer |
| 14 | Cooling | Cooling tower | Recycling |
| 15 | Passivation | Chromium-free passivator | Good effect |
| 16 | Auxiliary | Bridge crane/Flat trolley/Material rack/Transfer pit | Transfer |
| 17 | Auxiliary | Tank's anti-corrosion protection | Safety |
| 18 | Auxiliary | Zinc ingot/Chemicals/Alloy | Necessity |
Service Process
- Demand communication
- Custom plant
- Supply of hot dip galvanizing equipment
- Assembly and commissioning
- Supply of galvanizing techniques
- 24Hr after-sales service
Galvanizing Related Training
- Theory of hot dip galvanizing
- The procedure of melting zinc ingots
- Zinc kettle using guidance
- Decreasing of fumes
- Treatment of coating problems
- Adjustment of chemical additives
How to Choose the Right Type of Production Line and Kettle Size?
- The land size, the material type and quantity, environmental
protection requirements, etc. are the factors affecting selection
- Hot dip galvanizing is not suited for all kinds of products'
coating. Some products may need plating, so there are different
types of production lines
- Before running the factory you need to know that once it starts
can't be stopped. The zinc solution has to be kept in molten
condition all year round
- So no matter which kind of production line you choose must make
sure that you have a lot of work to do which can offset these costs
and let you earn profits
- And as for the kettle size is decided by the largest parts' size
which is also in a large amount. For example, if the longest size
is 12m pipe but in a small amount and the 6m size steel structure
in a large quantity, we will advise you not to choose a 12.5m
kettle. You can make the decision by yourself and we give you some
advice, or tell us the size of your part we can design the kettle
for you
Choose Us
Beihai galvanizing - tailor factory for you, the worth of your
trust~
Choose us!
For a Win-Win future!
