Ladle Refining Furnace is used to refine the molten steel from primary melting furnace (electric arc furnace, induction furnace, converter and etc.), meanwhile have the function of adjusting molten steel temperature, and be a buffer of the whole process. It is described to be soul of the best production line (primary melting furnace + LF+ CCM). It is widely used in refining all kinds of steel grade, such as ball bearing steel, alloy structural steel, tool steel, spring steel, carbon steel and etc. Characteristic: 1. Even the molten steel composition and temperature 2. Desulfidation, degassing, deoxidation and removing non-metallic impurities. 3. Increase production capacity. Adoption of new technology: 1. Tubular water cooled furnace lid 2. Electrode lifting mechanism ( single phase, three-phase) 3. Optimize large current system structure (energy-saving type) 4. PLC controller of electrode automatic lifting regulator 5. Automatic control argon blowing system 6. Frequency control ladle car 7. Industrial automatic control 8. Network technique