Top Heated Furnace

The ruggedly constructed QED Top Heated Galvanizing and Galfan furnaces provide our customers with reliable performance at very reasonable cost. The molten metal is contained in a ceramic lined bath designed for a long trouble free life of over twenty-five years. Special low velocity burners fire into a combustion chamber that is sealed into the zinc surface. Exhaust gasses from the combustion hood can be ducted through a dryer to effectively recycle combustion heat. QED designs Top Heated Furnaces to operate with LPG, natural gas, oil or dual fuels. This equipment is easy to operate and requires little maintenance.

Low Maintenance
Lower Capital Cost
Proven Reliable Design
High Combustion Turn-Down
Multiple Fuels (Oil or Gas)
Ceramic Sinker Assembly

Furnace & Combustion Hood Assembly
The galvanizer shell is solidly constructed of rolled steel plate and structural steel sections. The bath is heated by flat-flame burners firing into a combustion hood that is sealed into the zinc surface. Special low velocity burners and a designed heat-transfer rate permit maximum production and minimum zinc oxide formation. The hood is lined with fiber insulation and light castable refractory providing better thermal efficiency and a low cold face temperature. The hood is supported by the base end walls and is designed to be lifted to allow maintenance of the zinc surface.

Refractory Design
The refractory lining is multiple layers of the latest generation of refractory materials. The hot-face lining is made of interlocking high strength, high alumina content tiles. The interlocked tiles are fully bonded to provide an impervious container for the liquid metal. A special “freeze plane” design is employed to guaranty zinc containment, even in the unlikely event of a hot-face lining crack. A layer of back-up and a layer of insulating refractory ensure additional bath integrity and low heat loss. QED provides the installation of the refractory as part of the equipment price.

Combustion Equipment
A state-of-the-art panel with Siemens PLC hardware and our user friendly program provide advanced control functionality. Gas fired systems use special flat flame burners while our oil fired furnaces are end fired with special low velocity burners. Both systems utilize top quality Kromschroder and Hauck combustion components.