Molten Metal Transfer Pump

Description

Molten metal transfer pumps are used for a range of applications, including critical workflows like moving molten metal from melting furnaces to holding furnaces and transport ladles, but also for alloying and maintenance applications that require furnace pump-out. 

Their pumps are proven to operate better than traditional tap-out configurations because they are designed to minimize oxidation and dross generation during the transfer and allow the option of remotely controlling the transfer start, stop, and rate. These capabilities allow operators to safely perform the transfer operation while reducing labour and time required.

Three Types of Pump:

Open-Style Pump

• The open-style pump has an open, easy to access shaft, making the shaft easily accessed for cleaning and inspection.
• While the assembly remains in the melt, you can remove the shaft and impeller by lifting them up from the pump assembly, easing shaft and impeller maintenance.

Closed-Style Pump - Enclosed Shaft Support 

• The close-style pump has an enclosed shaft that is housed in a protective refractory sleeve. While this prevents easy access for inspection and cleaning, the pump is optionally fitted with an inert gas feed that:
• This pump can be fitted with an inert gas fitting to remove all oxygen present within the sleeve

1. Removing the oxygen eliminated oxide buildup at the metal level
2. Removing oxides will drastically improve lifetime of pump components
3. Cons: Requires a nitrogen/argon supply

Dual Position Pump

• This pump would contain a transfer position as well as a circulation position
• This would be useful for the alloying furnace to mix the aluminum into solution
• They will have to discuss sizing and run some calculations to ensure that we can meet both circulation and transfer targets