Core Viewpoint - The belt furnace plays a crucial role in the recycling and recovery of precious metals, showcasing significant advantages in energy efficiency, environmental safety, flexibility, and automation [1][3][4]. Group 1: Working Principle - The belt furnace is a continuous high-temperature furnace that processes precious metal materials through heating, melting, cooling, and solidification to achieve recovery and recycling [1]. - During the high-temperature melting process, precious metals are reduced and form molten metal droplets, which solidify into metal blocks or powders after cooling [1]. Group 2: Advantages in Precious Metal Recovery - Energy Efficiency: The continuous high-temperature melting technology enhances recovery rates and production efficiency while minimizing energy consumption [1][3]. - Environmental Safety: The furnace effectively controls emissions of waste gases and residues, reducing environmental pollution [3]. - Flexibility: The structure of the belt furnace can be customized and modified according to different process requirements, allowing it to handle various forms of precious metal materials [3]. - High Automation: The advanced control system enables automated monitoring and control, reducing manual intervention and operational difficulty [3]. Group 3: Specific Applications in Precious Metal Recovery - Electronic Waste Treatment: The furnace can recover precious metals from discarded electronic products such as circuit boards, mobile phones, and batteries through high-temperature melting [3]. - Catalyst Regeneration: In the petrochemical industry, the furnace can treat waste catalysts at high temperatures to restore their activity, lowering production costs and reducing waste [3]. - Other Applications: The furnace can also process other waste containing precious metals, such as old jewelry and dental materials, for recovery and reuse [3]. Group 4: Future Outlook - The belt furnace has broad application prospects and significant advantages in the field of precious metal recycling, with its importance expected to grow alongside technological advancements and increasing environmental awareness [4].