Purification　effects　of　energy-saving　Al　3104　were　studied　by　a　dual-stage　foam　ceramic　filtration　method　combining　small　deep　bed　filtration　with　the　maximum　throughput　by　35　t/h　and　large　deep　bed　filtration　with　the　maximum　throughput　by　50　t/h.　The　study　investigates　the　filtration　and　purification　effects　of　aluminum　melt　by　employing　a　dual-stage　foam　ceramic　filtration　method　that　combines　small　deep　bed　filtration　with　large　deep　bed　filtration.　It　indicates　that　small　deep　bed　filtration　effectively　functions　as　coarse　filtration,　significantly　reducing　the　accumulation　and　release　of　impurities　in　the　large　deep　bed　filtration　phase.　Post-filtration,　the　impurity　content　at　the　outlet　of　the　small　deep　bed　consistently　goes　to　less　than　0.028　mm2/kg,　effectively　serving　as　a　coarse　filtration　process,　mitigating　the　accumulation　and　release　of　inclusions,　with　a　minimal　reduction　by　0.0008%　in　titanium　content,　thereby　not　affecting　the　activity　of　the　refining　agent.　After　large　deep　bed　filtration,　the　impurity　content　is　significantly　reduced,　and　filtration　precision　is　enhanced,　contributing　to　the　stability　and　improvement　of　product　quality.　The　combined　dual-stage　filtration　approach　poses　no　new　risks　to　product　quality,　ensuring　the　overall　efficacy　and　safety　of　the　process.　©　2025　SPIE.