Zinc Dross Distilling Furnace

Application

Every galvanizing plant produces dross. Molten zinc dissolves iron, for example, from workpieces that are hot-dip galvanized, from the wall of the galvanizing kettle or from flux. It must be regularly removed out of the zinc bath.

Process

The zinc dross distillation furnace recovers 85-88% of the zinc bound in the dross with a purity of 99.9%. The furnace brings the zinc dross to evaporation temperature. The zinc is then condensed in the retort outside the furnace.

Benefits

• Improved quality, the galvanized surface is free of zinc dross spots
• Permanently optimum immersion depth in the galvanizing kettle
• Long kettle service life without overheating the kettle wall
• Excellent economy, especially with high zinc prices
• Environmental protection through recycling
  
  

Technical Specifications

Dimensions

• Length: 3,535 mm
• Width: 1,675 mm
• Depth: 2,040 mm

Process parameters

• Operating weight: ca. 450 kg/charge
• Daily capacity: ca. 1,000 kg
• Temperature: > 918 °C

Heating

• Natural gas or oil

Consumption

• Natural gas: 80 Nm³/charge
• Electricity: 30 kWh/charge