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📐 Hydraulic Circuit Architecture & System Integration SCHWERLL Engineering Solution
BOF Converter Tilting Hydraulic System with Emergency Energy-Storage Backup
Application-specific fluid power system, control architecture, and integrated hydraulic engineering.
Operational Focus & Value Proposition: This application is engineered for specialized fluid power control and system stability in accordance with project engineering specifications.

 

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.

❓ Frequently Asked Engineering Questions

The SCHWERLL BOF Converter Tilting Hydraulic System with Emergency Energy-Storage Backup provides instantaneous high-rate fluid delivery (rapid dynamic response), eliminates hydraulic water hammer transients, and enables peak shaving that optimizes connected pump and motor sizing.
All accumulator pressure vessels and manifold blocks are manufactured under ISO 9001:2015 quality control, with full compliance options for ASME Section VIII Div 1, CE Pressure Equipment Directive (PED 2014/68/EU), and TSG 21.
Yes. Systems are custom-engineered for mineral hydraulic oils, fire-resistant fluids (HFC, HFD-U), or water-glycol, with elastomer seal packages rated from -40°C cryogenic marine duty up to +120°C continuous metallurgical duty.

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