The emergency hydraulic control system for the tilting of the converter skirt is a critical safety device in steelmaking. In the event of a main power outage or an unexpected failure of the hydraulic pump station, the system utilizes accumulators to release pressure, driving the skirt to rapidly lift or retract, thereby preventing high‑temperature furnace gases from damaging equipment and ensuring operational safety.
Core functions of the system
- Emergency Power‑Off Boost: When the main pump loses power, it operates using the energy stored in the accumulator.
- Protecting the furnace mouth equipment: preventing splashing or high-temperature damage to the skirt.
- Energy Efficiency and Voltage Regulation: Balances the system’s peak flow rate and reduces installed power capacity.
Main components
- Severin piston accumulator unit with energy monitoring: stores pressurized oil and provides emergency power.
- Solenoid directional valve: switches the oil flow direction when de-energized or under control.
- Logic Control Unit: Monitors system pressure and fault signals.
- Piping and Actuators: Connect to the hydraulic cylinder to perform lifting and lowering.
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