Compared with other scrap aluminum melting furnaces, especially when melting waste containing impurities and thin-walled waste, the double-chamber melting furnace has the following significant advantages.

1. The sealed double chambers of the double-chamber furnace ensure complete combustion of impurities during the treatment process Controlled, the thermal decomposition of impurities occurs in a sealed furnace chamber, which will not pollute the atmosphere and workshop. The controllable combustion and heating chamber burners secondary combustion of the thermal decomposition gas in the waste chamber and the rapid cooling of the flue gas in the heat exchanger significantly reduce the pollutants leading to the exhaust gas treatment unit. 2. The energy consumption of the waste chamber is due to the closed The heat dissipation of the molten pool to the environment is significantly reduced. The central heat exchange system can further reduce heat loss, and its heat energy can be directly used to heat the furnace chamber.

3. Utilize the heat of pollutants: control the thermal decomposition gas and perform secondary combustion in the heating chamber. The heat of the combustible components in the thermal decomposition gas reduces energy consumption. 4. Metal burning loss: This furnace type does not require salt as a covering agent to prevent the oxidation of the aluminum liquid. Because the atmosphere in the closed waste chamber is a controllable reducing atmosphere, the burning loss caused by oxidation is greatly reduced. The atmosphere does not contain oxygen, which means no alumina will be produced. Therefore, the aluminum will melt in the molten pool, and the part that will not become dust will be directed to the exhaust gas treatment equipment, nor will it become part of the slag and be scraped off. out. This is especially important for thin-walled materials, which have a larger surface area to react with oxygen. Adding scrap aluminum containing impurities directly into the molten pool without preheating and thermal decomposition will increase the oxidation loss of the metal. Because the impurities contain oxygen, if added directly to the aluminum liquid, they will immediately react with the aluminum liquid. Since there is no fresh air in contact with the aluminum liquid, the dissolution of hydrogen is avoided. The special arrangement of the burners in the heating chamber and the cooperation of the atmosphere control system ensure that the surface of the molten pool is heated evenly, without forming hot spots in the molten pool area, and the oxygen concentration is the lowest. Hot spots in the molten pool of a double-chamber aluminum melting furnace will increase slag formation and hydrogen inhalation.