Launder type in-line rotor degassing unit (LDU)

Launder type in-line rotor degassing unit (LDU)

• Easy to use, efficient, flexible, low-cost

Equipment Introduction
• The LDU has higher degassing efficiency because degassing rotors are mounted between the melting furnace and casting machine in the length direction of the launder and the degassing zone is partitioned into several parts for multilevel in-line degassing. The number of rotors depends on the flow rate of molten aluminum.

Equipment Features
• The degassing efficiency is high, above 40%. Continuous degassing in multiple sub-zones increases the area and time of contact between bubbles and molten aluminum; seal design is adopted. During the whole casting process, there is an inert headspace maintained on the surface of molten aluminum to avoid the generation of more slags and prevent secondary pollution to improve the degassing efficiency.
• Low use cost and maintenance cost. The molten aluminum heating and heat preservation system is removed, reducing consumption; launders are adopted for degassing, reducing the residual amount of molten aluminum and the loss of metal; it’s easy to replace launders.
• Easy to install. Small size and low weight, space-saving; needless to install the required structure or foundation; installed in the joint positions of launders; a short period of time is required for on-site commissioning, saving production downtime.
• Convenient for alloy conversion. There is no heating device or deep box, so after the end of each casting, most of the degassed metal is made into products with the residual molten aluminum in the degassing launders cleared away, facilitating alloy conversion.
• Easy to use. No special starting procedure; a simple molten aluminum drainage device; convenient slag removal and simple working conditions.
• Especially suitable for semi-continuous casting lines for the production of cast rods and renewable aluminum ingots. This casting technology is featured by frequent replacement of alloys without a very high dehydrogenation level.

Main Performance Parameters

Specifications of the LDU