Complete Molten Aluminum Purification Solution | Launder, Degassing, Filtration & Refractory System
Our full-set molten aluminum purification solution covers the entire aluminum melt conveying and purification process for aluminum melting and casting production lines. The integrated system consists of modular molten aluminum launder systems, in-line degassing units, filter box systems, and high-performance refractory precast shapes. It realizes low-turbulence transportation, efficient degassing, precise impurity filtration and stable temperature control of molten aluminum from furnace to casting machine.
Different from scattered single equipment, our integrated solution features matched structural design, consistent refractory performance, seamless on-site assembly, and stable overall operation. It effectively reduces oxidation, slag inclusion, pores and other casting defects, improves the purity and forming quality of aluminum melt, and lowers production loss and maintenance costs. Customized layout and size design are available according to customer workshop space, casting flow rate and production process requirements, supporting one-stop services from site survey, design, production to installation guidance.
Full-System Composition
The complete aluminum melt purification system includes four core modules with supporting accessories, forming a closed and efficient molten aluminum processing line:
1. Molten Aluminum Launder System (Conveying Module)
As the core conveying equipment of the casting line, the launder system connects melting furnaces, holding furnaces, degassing equipment, filter boxes and casting machines to realize stable and low-turbulence transfer of molten aluminum. Adopting steel shell + multi-layer thermal insulation + refractory lining composite structure, the modular splicing design supports flexible on-site layout.
Main Components: Straight launder sections, elbow launders, tee/Y-type distribution launders, steel support frame, thermal insulation layer, heat preservation launder cover, flow control gate, sealing gaskets.
Core Advantages: Low heat loss to stabilize molten aluminum temperature; anti-stick aluminum lining reduces dross accumulation; modular assembly saves installation time; low-turbulence flow design avoids secondary oxidation of aluminum liquid.
2. In-Line Degassing System (Purification & Defoaming Module)
The degassing system is key equipment for removing hydrogen and tiny inclusions in molten aluminum. It performs online degassing and impurity removal through rotary bubble breaking technology, solving casting defects caused by hydrogen absorption and micro-inclusions of aluminum melt during smelting and conveying.
Core Advantages: Efficiently remove hydrogen gas and microscopic impurities; uniform bubble distribution for full reaction; sealed heat preservation structure reduces temperature drop and oxidation; adaptable to different aluminum alloy types and production capacities; stable operation and low failure rate.
3. Molten Aluminum Filter Box System (Precision Filtration Module)
Installed at the rear of the degassing unit, the filter box system is used for secondary precision purification of molten aluminum. It matches ceramic foam filter plates to intercept oxide films, coarse slag and micro inclusions in aluminum liquid, further improving melt cleanliness.
Main Components: Steel outer shell, multi-layer thermal insulation layer, fused silica refractory lining, filter cavity, filter plate mounting base, insulated box cover, inlet and outlet transition sections, sealing accessories.
Core Advantages: Optimized flow channel structure reduces liquid turbulence; low temperature loss ensures continuous casting stability; quick filter plate replacement improves production efficiency; anti-stick aluminum lining reduces residue and cleaning frequency.
4. High-Performance Refractory Precast Shapes (Lining & Protection Module)
All refractory linings of the launder, degassing box and filter box adopt customized fused silica refractory precast shapes. As the core protective and heat-insulating component of the entire purification system, it replaces traditional on-site pouring refractory materials.
Main Product Range: Launder precast liners, degassing chamber precast blocks, filter box precast components, elbow/tee transition precast parts, special-shaped customized precast refractories.
Core Advantages: Factory prefabricated with stable and consistent quality; excellent anti-stick aluminum performance to reduce dross formation; superior thermal shock resistance to adapt to frequent temperature changes; low thermal conductivity to minimize heat loss; easy on-site assembly and convenient later maintenance, greatly extending the service life of the entire equipment.
Integrated Solution Core Advantages
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Full-Link Purification: Realize integrated process of stable conveying, degassing, impurity removal and precision filtration to comprehensively improve molten aluminum purity.
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Matched System Design: All equipment and refractory accessories are uniformly designed and calibrated, with seamless docking and no process dead angles.
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Low Loss & High Efficiency: Integral heat preservation design reduces molten aluminum temperature drop; anti-oxidation and anti-slag structure reduce aluminum loss and defective rate.
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Stable & Durable: High-quality fused silica precast lining resists aluminum liquid erosion and thermal shock, ensuring long-term stable operation of the production line.
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Flexible Customization: Tailor-made system layout and equipment specifications according to workshop conditions, casting flow and alloy types.
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One-Stop Service: Provide full-process support including on-site survey, scheme design, standardized production, on-site installation and after-sales guidance.
Application Scope
Widely applicable to the production and purification of pure aluminum, aluminum alloy, industrial aluminum ingots, aluminum rods, aluminum plates and profiles, covering foundry workshops, aluminum smelting plants and various aluminum deep processing production lines.
