In the electrolytic antimony production process, anode casting is a crucial step, as its quality directly affects the efficiency of subsequent electrolysis processes and the quality of the final product. The complete process flow for electrolytic antimony anode casting will be detailed below.
Feeding: The crude antimony raw material is accurately added into the smelting furnace through automated conveying equipment to prepare for the subsequent smelting process.
Melting: Start the melting furnace and raise the temperature inside the furnace by heating. The furnace temperature should be high enough to ensure that the antimony is completely melted, while avoiding excessive oxidation of the antimony liquid due to excessive temperature. During the melting process, the antimony liquid must be continuously stirred to ensure its uniform composition.
Slag removal: After the antimony has completely melted, impurities in the antimony liquid will float to the surface as slag. At this time, use a special skimming tool to remove the slag to improve the purity of the antimony liquid.
Casting: The refined, pure antimony liquid is accurately injected into the moving mold through a metering system. During casting, the flow rate and velocity of the antimony liquid must be carefully controlled to ensure that the dimensions and weight of the anode plate meet the requirements.
Cooling and solidification: The molten antimony cools and solidifies naturally in the mold to form an anode plate. During the cooling process, the mold must be kept stable to prevent deformation or cracking of the anode plate.
Demolding: At the unloading station, the solidified anode plate is ejected from the mold, completing the demolding process.
Finishing: After demolding, the anode plate is straightened and the ears are polished to ensure that its surface is flat and its dimensions are accurate, so as to facilitate subsequent electrolysis operations.
Stacking: The finished anode plates are counted and stacked according to the prescribed stacking method, and finally transported to the electrolysis workshop for electrolysis.
The entire process of electrolytic antimony anode casting is closely linked and interconnected. Only by strictly controlling the quality of each link can high-quality anode plates that meet the requirements of electrolysis be produced, thereby ensuring the high efficiency and stability of electrolytic antimony production.
