Furnace Control Cabinet for Electric Arc Furnace (EAF)/Ladle Refining Furnace (LRF)

Core Functions

1. Power & Electrode Control
   
   
   • Arc Striking Regulation: Automatically controls electrode lifting/lowering via servo or hydraulic systems to stabilize arc length, avoid electrode sticking or breakage, and maintain optimal arc voltage/current for energy-saving smelting.
   • Power Adjustment: Matches furnace capacity and smelting stages (melting, refining, tapping) to adjust input power, realizing constant power or constant current control.
   • Phase Balance Control: Balances three-phase current to reduce grid impact and improve power factor.
   
   
2. Process Monitoring & Automation
   
   
   • Real-time Data Acquisition: Monitors key parameters (electrode current/voltage, furnace temperature, cooling water flow/pressure, gas composition) and displays them on a touchscreen HMI.
   • Programmable Logic Control (PLC): Supports customized smelting process programming (e.g., automatic charging, temperature holding, tapping sequence) to reduce manual operation errors.
   • Data Storage & Traceability: Records smelting process data (duration, power consumption, temperature curve) for production analysis and quality traceability.
   
   
3. Safety Protection & Alarm
   
   
   • Overload/Short-Circuit Protection: Triggers power-off protection when current exceeds rated value or short circuit occurs, preventing damage to power cables and furnace components.
   • Cooling System Fault Protection: Alarms and shuts down the system if cooling water pressure is too low, flow is insufficient, or temperature is too high (critical for water-cooled components like cables and furnace covers).
   • Electrode Position Limit Protection: Prevents electrode over-lifting or over-lowering to avoid mechanical collision.
   • Emergency Stop Function: Equips with local and remote emergency stop buttons for immediate shutdown in case of accidents.
   
   
4. Communication & Integration
   
   
   • Supports MODBUS, PROFIBUS, Ethernet protocols to connect with factory MES/ERP systems, realizing remote monitoring and centralized management.
   • Interfaces with auxiliary equipment (dust removal systems, water treatment units, electrode regulators) for coordinated operation.
   
   

Structural Design

Technical Parameters

Application Advantages

1. Intelligent Operation: HMI touchscreen with visualized smelting curves enables one-key start/stop of processes, reducing the threshold for operator training.
2. Energy Efficiency Optimization: Dynamic adjustment of electrode parameters reduces power consumption by 8–15% compared to manual control, shortening smelting cycles by 10–20%.
3. Strong Anti-Interference: Isolated power supply and shielded wiring design effectively resist electromagnetic interference from high-current arcs, ensuring stable operation in harsh industrial environments.
4. Easy Maintenance: Modular component design allows quick replacement of faulty parts; self-diagnosis function locates faults in real time, reducing maintenance downtime.

  Shaanxi Chengda Industrial Furnace Manufacturing Co., Ltd. is a high-tech enterprise specialized in the research, design, and manufacturing of various industrial furnaces, including AC and DC steelmaking electric arc furnaces, ladle refining furnaces, ferroalloy ore thermal furnaces, ferroalloy refining furnaces, electric slag remelting furnaces, non-standard metallurgical equipment, heat treatment equipment, and various related environmental protection dust removal equipment. The company's product design and manufacturing capabilities have reached 100 tons for electric arc furnaces, 160 tons for ladle refining furnaces, and a capacity range of 3600KVA to 35000KVA for ore thermal furnaces. In accordance with national industrial policies, we have designed high and low voltage compensation systems, dust removal systems, ferroalloy DC furnaces, and new energy equipment suitable for the actual operation of the equipment. For inquiries, please contact Mr. Du at 13991381852 or Mr. Chen

13709182307.