GALVANIZING KETTLES

Custom Galvanizing Kettles built to last

NUTEC Bickley Galvanizing Kettles

NUTEC Bickley has full capability to offer complete control and instrumentation system to suit each customer’s requirement – from simple to very advanced and sophisticated controls. Temperature control loops, fuel ratio control loops, instrumentation for over temperature by stand-alone instruments or PLC based SCADA (Supervisory Control And Data Acquisition) software control systems are offered

Why choose NUTEC Bickley for Galvanizing Kettle solutions?

The galvanizing process consists of coating a steel part with a layer of zinc that protects it against corrosion. To achieve this coating, the part must come into contact with molten zinc contained in a bath, whose operating temperature is normally maintained at around 450°C.

1. Designs the furnace combustion and control system

To carry out this process, NUTEC Bickley designs the furnace combustion and control system, responsible for providing the energy required to heat and maintain the zinc in a molten state. 

The different combustion and control systems, as well as the construction of the properly insulated furnace chamber, are custom-designed according to the specific requirements of each customer and each process.

2. Safety and Regulations

In addition, Nutec Bickley galvanizing furnaces are designed considering high safety standards for combustion systems and can be developed in accordance with applicable standards such as NFPA 86.

3. Temperature Control and Consistency

The systems developed by NUTEC Bickley are focused on achieving precise zinc temperature control, helping reduce dross generation and increase the service life of the kettle.

NUTEC Bickley works together with its customers to design systems that promote high thermal uniformity in the bath, maintaining low temperature gradients along the kettle.Likewise, the systems are designed to maintain a stable process, capable of holding the required temperature even under load variations and normal operating fluctuations.

4. Technology tailored to each application

This is achieved through the incorporation of 
Highly flexible systems
Efficient burners carefully selected for each application
Control strategies designed to minimize overshoot
Furnace zoning specifically defined according to the geometry, capacity, and operating conditions of each installation.

Custom-Designed Solutions for Galvanizing Kettle

All NUTEC Bickley solutions are custom-designed for each application, considering the specific process conditions and the particular requirements of each customer.The main design parameters include:

Kettle dimensions and characteristics.

Zinc bath capacity.

Operating temperature.

Required production and capacity.

Type of fuel available.

Plant space and physical restrictions.

Applicable safety standards and regulations.

Based on this information, the most suitable thermal configuration, combustion system, zoning, control strategy, and safety elements are defined for each installation.

Key Features

High Density Ceramic Fiber Insulation

Control Panel with PID or PLC

Automatic Flue Gas Damper

Kettle Long Life

High Velocity Gas Burner in Order to Improve Convection Heat Transfer

Compliance with 2011 Ed. of NFPA-86 Normative

What control systems can be integrated into a galvanizing kettle?

The control systems for NUTEC Bickley galvanizing furnaces are designed to maintain stable, safe, and efficient thermal operation throughout the entire process.

Temperature Monitoring and Control

The system incorporates continuous monitoring of the furnace chamber temperature and the zinc bath temperature, allowing deviations to be detected and heat demand to be adjusted in a timely manner.

The combustion strategy features a wide thermal power modulation range, which allows the system to respond quickly to sudden load changes or variations in process conditions, helping maintain temperature within the required parameters.

PLC, HMI, and Remote Monitoring

The control systems are based on the integration of PLC, HMI, and remote monitoring tools, providing the operator with clear information on the process status. 

The graphical interfaces facilitate the identification of

Anomalies

Trends

Conditions outside normal operation

Allowing timely corrective actions to be taken.

Independent zone control

Temperature control can be performed independently by zones, adjusting the operation of each burner group according to the thermal requirements of each furnace section. 

This zoning helps

Improve temperature uniformity

Reduce unnecessary energy consumption

Prevent process impact caused by general system adjustments.

Burner Management System (BMS)

In addition, the furnaces can integrate a Burner Management System (BMS) responsible for:

Supervising burner ignition, operation, and shutdown sequences

Conditions required to maintain safe operation of the combustion system.

Integration with Plant Automation

NUTE  Bickley systems can also communicate with higher-level plant automation and supervision platforms through different industrial communication protocols, facilitating integration with the customer’s existing infrastructure.

Air-to-Gas Ratio Control

Finally, the combustion strategy is designed to maintain a proper air/gas ratio throughout the operating range, promoting stable and efficient combustion and contributing to proper thermal control of the furnace.

What are the benefits of upgrading an existing Galvanizing Kettle?

Modernizing a galvanizing kettle may be necessary to solve operational issues that affect productivity, energy consumption, process quality, equipment service life, and installation safety.

The main reasons include:

Poor temperature uniformity in the bath

This can generate thermal gradients, promote dross formation, and cause variations in the quality of the galvanized product.

Low productivity

Slow temperature recovery after introducing the load can increase process times and limit production capacity.

High fuel consumption

This may be related to improper equipment selection, inefficient control strategies, excess air, low modulation capacity, or components that have become obsolete.

Reduced kettle service life

Improper zoning, poor combustion system selection, incorrect furnace sizing, or equipment operating outside its design range can generate hot spots and thermal stresses that accelerate kettle deterioration.

Safety

Older installations or systems designed without considering international standards such as NFPA 86 may present deficiencies in operating sequences, flame supervision, and gas control and regulation, increasing the risk of incidents.

A proper modernization makes it possible to upgrade the combustion and control system to improve thermal stability, increase energy efficiency, enhance process reliability, and operate under current safety standards.

Download the resources related to our Galvanizing Kettles

Advanced Firing & Heating Technology Brochure

Download brochure

SCADA Technical datasheet

Download datasheet

Technology

SCADA

SCADA

With our SCADA systems, kilns operators are able to have complete control of their firing process, enhancing efficiency and productivity.

Learn more about SCADA

ECOmbustion™

NUTEC Bickley’s proprietary ECOmbustion™ system is an innovative control methodology designed to achieve fuel savings in gas-fired kilns, bringing operating costs down and reducing carbon footprint.

Learn more about ECOmbustion™

Related Resources

This is Nutec  Bickley

Providing Thermal Equipment Solutions that go beyond expectations

We serve multiple industries through the design, building and installation of combustion systems, thermal insulation and highly specialized industrial furnaces, kilns and ovens. We are focused on understanding our customers’ needs and supplying the best equipment at the most competitive price. 

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Do you want advice to select the ideal furnace or spare part for your project?

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