Online Degassing Unit with PLC-based Automated Control High-Speed Graphite Rotor and Refractory-Lined Chamber for Molten Aluminum

Average degassing efficiency is 60%. When using Ar with Mg content ≤1%, efficiency can reach 0.09cc/100g.

The lining is made of high silicon molten material with an average working life of 2-3 years. Features include non-stick aluminum properties, no contamination, and an internal float stopper to prevent oxides from being drawn into molten aluminum while containing bubbles and slags.

Constructed from SiN with a working life of 2-5 years. Excellent performance in corrosion resistance, heat shock resistance, oxidative resistance, abrasive resistance, and mechanical strength. Shaft diameter 60mm, head diameter 200mm reduces stirring resistance. Speed design of 450-550 RPM crushes bubbles and disperses them evenly throughout the aluminum.

Made from SiN with average service life of 1-2 years. Features high heating efficiency, oxidation and slagging prevention, and no contamination.

Compatible with Ar mixed with N2 and chlorine, with comprehensive protection methods designed.

Includes cover, lining, inlet, and outlet components to prevent slag leakage and improve degassing efficiency.

• Heating Completion: Switch off heater after degassing box heating is finished
• Inert Gas Pre-heating: Guide inert gas into the rotor
• Temperature Matching: Prepare to introduce molten aluminum when heater temperature approaches molten aluminum temperature
• Seal Check: Inspect sealing between inlet/outlet and launder
• Bottom Check: Verify correct positioning of cone (heat protection/draining plug) at bottom
• Molten Aluminum Temperature: Ensure temperature is ≥ 720°C
• Observation Height: Adjust molten aluminum level to approximately 3 cm from bottom of launder
• Personal Protective Equipment: Operators must wear protective clothing

• Close Cover & Deslagging: Wear PPE, close box cover, and skim surface slag through deslagging outlet
• Heat-up & Start Production: Begin production when temperature reaches 780°C
• Heat Preservation Stage: Retain molten aluminum at set temperature without processing; continuously introduce small inert gas flow to prevent blockage
• Heating & Parameter Setting: Switch on heater immediately after molten aluminum flow completion and set heat preservation parameters
• Transition to Processing Stage: Start heating system, change rotor speed from preservation to processing stage, and increase inert gas flow rate
• Stable Operation: Set target temperature and maintain stable degassing operating conditions