1.Project Overview: Annual Production of 30000 Tons (Metal Quantity) of High Purity Ternary Power Battery Grade Nickel Sulfate Project - Pre treatment Sub item 3000KVA Depleted Electric Furnace Equipment.

2. Process flow: This equipment is used to receive hot melt waste residue from the vulcanization furnace and dilute the waste residue.

3,Working principle
The 3000KVA depleted electric furnace equipment operates based on the dual principle of resistance heat and arc heat. When current is introduced into the furnace through the electrodes of the electric furnace, a high-temperature arc is formed between the electrodes and the furnace material. The arc area can instantly generate high temperatures of up to thousands of degrees Celsius, and the resistance of the furnace material itself also generates a large amount of heat. In this high-temperature environment, a series of complex physical and chemical reactions occur in the nickel containing raw materials and related auxiliary materials entering the furnace. The moisture in the raw materials evaporates rapidly, organic matter is decomposed, and metal oxides undergo reduction reactions under the action of reducing agents, separating valuable metals such as nickel from the compounds, forming liquid alloy phases and slag phases, achieving preliminary metal enrichment and impurity separation, laying the foundation for subsequent refining and purification processes.

4.Technical parameters
Rated capacity: 3000KVA, capable of providing stable and sufficient electrical energy to meet the heating needs of the depleted electric furnace at different production stages, ensuring that the materials inside the furnace can quickly heat up and reach the ideal melting temperature. ​
Working voltage: According to the process requirements, the working voltage can be adjusted within a certain range, usually ranging from tens of volts to hundreds of volts, to adapt to different furnace resistance and melting conditions, ensuring stable combustion of the arc and effective heat transfer. ​
Electrode diameter: Suitable diameter graphite electrodes are used, usually 300-500mm. The size design of the electrode fully considers the power and current density of the electric furnace, which can ensure good conductivity and reduce electrode consumption. ​
Melting temperature: The maximum melting temperature can reach over 1600 ℃, which can meet the melting and reaction needs of various components in nickel containing raw materials, achieving efficient metal enrichment and impurity separation. ​
Production capacity: Based on the properties and process conditions of the raw materials, the daily processing capacity of this depleted electric furnace equipment can reach 30-50 tons, which can meet the needs of large-scale industrial production and provide stable pretreatment raw materials for high-purity ternary power battery grade nickel sulfate projects.

5. Equipment advantages
Efficient metal enrichment: With powerful power and precise temperature control, the materials in the furnace can quickly reach high temperature reaction conditions, accelerate the separation process of metals and impurities, and significantly improve the enrichment efficiency of valuable metals such as nickel. After being treated with a depleted electric furnace, the enrichment rate of nickel can reach over 85%, providing high-grade raw materials for subsequent refining processes and reducing production costs. ​
Precise process control: Advanced automation control systems achieve precise control over the melting process, allowing operators to flexibly adjust various parameters based on the composition of raw materials and process requirements, ensuring stable and consistent product quality for each batch. At the same time, the real-time monitoring and feedback functions of the system can timely detect and solve problems that arise during the production process, improving the reliability and stability of the production process. ​
Energy saving and environmental protection: By adopting efficient heating methods and advanced cooling systems, energy waste and heat loss are reduced, and energy utilization efficiency is improved. Compared with traditional impoverishment equipment, this electric furnace equipment can reduce energy consumption by 15% -20%. In addition, the equipment is equipped with comprehensive environmental protection facilities, such as exhaust gas purification devices and dust collection systems, effectively reducing the emissions of pollutants such as exhaust gas and dust generated during the production process, which meets national environmental protection requirements. ​
High equipment reliability: Key components such as electrodes, power supplies, hydraulic systems, etc. are made of high-quality materials and advanced manufacturing processes, with good wear resistance, corrosion resistance, and stability. At the same time, the equipment is designed with comprehensive safety protection devices and regular maintenance systems, greatly reducing the failure rate of the equipment, extending its service life, reducing downtime, and improving production efficiency.