AdTech is an enterprise specialized in new material development and high precision online degassing unit production since 2012, and got positive feedback from domestic and overseas markets.
The online degassing unit adopts advanced high silicon melting technology to get a long service time, degassing rotor, heater protection thimble, and thermocouple protection thimble adopt ceramic manufacturing technology which can meet producing high-precision aluminum requirements.
An online degassing unit shall be installed between the furnace and casting equipment. It is used for hydrogen (H) and slags removal from molten aluminum. The online degassing unit has dual functions: processing and heating. It serves high precision molten aluminum purification industry.
Assembling of Online Degassing unit:
Parameters of Online Degassing unit:
|Max Degassing flow
|15 MT/H||35 MT/H||65 MT/H|
|Degassing Box Standard||1 room 1 rotor （1B1R）||2 rooms 2 rotors（2B2R）||3 rooms 3 rotors（3B3R）|
|Degassing box structure||1 draining outlet & 1 deslagging outlet||2 draining outlets & 1 deslagging outlet||3 draining outlets 1 deslagging outlet|
|Lifting System||Hoisting type||Rotor mechanical lifting||cover hydraulic lifting|
Online degassing unit performance:
It is mainly used for hydrogen (H) and slags removal from molten aluminum.
It takes the gas flotation principle. The rotor takes inert gas or a mixture of chlorine and inert gas into molten aluminum and smashes the gas into dispersed tiny bubbles, the bubbles rise to the molten aluminum surface and finish the below-stated procedures at the same time:
|The efficiency of degassing unit||Average Degassing efficiency is 60%. If use Ar and Mg content ≤1%, the efficiency can reach 0.09cc/100g.|
|The lining structure of the degassing unit||The lining is made of high silicon molten material, average working life is 2-3 years. It is featured nonstick aluminum, with no contamination. There is a float stopper inside to prevent oxides from being drawn into molten aluminum and the bubbles or slags from running out.|
|The design standards for rotor in degassing unit||It is made of SiN. Working life is 2-5 years. It performs well in corrosion resistance, heat shock resistance, oxidative resistance, abrasive resistance, and mechanical strength. Shaft diameter 60mm, head diameter 200mm, which shall reduce resistance in stirring. Speed design 450-550 R/M will crush bubbles and disperse them evenly into aluminum. It is cost-effective during long-time usage.|
|Intrusive heater protection thimble||It is made from SiN, Average service life is 1-2years, featured high heating efficiency, oxidation, and slagging prevention, and no contaminations.|
|The gas protection design for degassing unit||Ar mix of N2 and chlorine is available, protection method is also designed.|
|Sealing structure design for degassing unit||The sealing structure includes cover, lining, inlet, and outlet to prevent slag and improve degassing efficiency.|
Operation Schematic Diagrams:
Degassing Devices Diagrams
Online degassing unit service life：
Lining≥ 2 years;
The whole unit except wearing parts≥5 years.