Introducing the ZN-SLT Automatic Flux Treatment Machine
In the competitive landscape of hot-dip galvanizing, controlling operational costs while maintaining superior surface quality is the ultimate challenge. The ZN-SLT Automatic Flux Treatment Machine addresses this head-on by automating the critical process of iron removal and pH adjustment in flux tanks — delivering measurable cost savings and quality improvements from day one.
Intelligent Automation for Precision Process Control
At the heart of the ZN-SLT lies a sophisticated automation system built on rigorous experimental data and mathematical modeling. The machine simulates process curves and employs imported sensors coupled with advanced software algorithms to achieve precise control over chemical reactions, filtration, and slag removal. The result is a system that operates with exceptional accuracy in continuous, unattended mode — ensuring consistent output quality without manual intervention.
Key automation advantages include:
- Precise monitoring and control of chemical dosing based on real-time pipeline flow data
- PLC-based electronic control system with intuitive HMI touch screen interface
- Fully unattended operation capability, reducing labor costs and human error
- Online treatment that integrates seamlessly without disrupting normal production line operations
Three Core Systems Working in Harmony
The ZN-SLT is engineered around three integrated subsystems that deliver complete flux treatment capability:
1. Electronic Control System
Equipped with a PLC controller and an intuitive touch screen HMI, the control system provides real-time pipeline flow monitoring and allows operators to adjust the dosing of reagents A and B on the fly. The user-friendly interface ensures that even complex process adjustments can be made quickly and accurately, keeping the equipment running at peak efficiency around the clock.
2. Chemical Reaction System
The reaction system oxidizes ferrous ions (Fe²⁺) into ferric ions (Fe³⁺), which then precipitate as Fe(OH)₃ for easy removal. All reaction pipelines are manufactured from high-grade polypropylene (PP), offering excellent corrosion resistance and high-temperature tolerance. This material selection ensures the equipment maintains stable, long-term operation in demanding industrial environments.
3. Filtration System
The precipitated Fe(OH)₃ is captured by the filtration system, keeping the flux solvent tank consistently clean and the production line running without interruption. The filters are designed for convenient, rapid cleaning and feature high re-use cycles. Like the reaction system, all filtration components are constructed from polypropylene (PP) for superior aging resistance and extended service life.
Proven Application in Hot-Dip Galvanizing
In hot-dip galvanizing operations, iron contamination in the flux solution is a persistent problem that directly impacts both product quality and zinc consumption. The ZN-SLT addresses this by continuously removing dissolved iron (Fe) from the flux tank and automatically adjusting pH values to optimal levels. This delivers a triple benefit:
| Benefit |
Impact |
| Reduced Zinc Dross |
Lower iron content in the flux means significantly less zinc dross formation during galvanizing |
| Improved Surface Quality |
Cleaner flux solution results in brighter, smoother, and more consistent coating on workpieces |
| Lower Zinc Consumption |
Less dross and optimal process conditions directly reduce zinc usage, driving down material costs |
Technical Specifications
| Parameter |
Unit |
Value |
| Power |
kW |
10 |
| Load |
m³/min |
1.2 |
| Stroke |
m³/h |
5 |
| Filter Area |
m² |
≥30 |
Compact Design, Maximum Efficiency
The ZN-SLT features a compact structural design that delivers a small footprint without compromising performance. Its high operating efficiency and stable running characteristics make it an ideal solution for both new galvanizing lines and retrofit installations where floor space is at a premium.
Why Choose the ZN-SLT?
- Cost Reduction: Automatic pH and iron control directly reduce zinc consumption and minimize dross-related waste
- Quality Improvement: Consistently clean flux solution ensures superior galvanized surface finish
- Uninterrupted Production: Online treatment works in parallel with production, requiring no downtime
- Low Maintenance: PP construction resists corrosion and aging, while filter systems offer quick cleaning and high reuse rates
- Smart Operation: PLC + touch screen control with real-time monitoring enables true unattended operation
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