The charging crane transports scrap and liquid steel to the furnace. The same crane can work as backup to the ladle crane if needed. Konecranes charging cranes are well protected from the flames and radiated heat, as well as the brief, intense heat of the charge itself. These cranes are a critical part of production and, since the load is molten steel, safety and reliability are the key words in the crane design.
Charging crane features
- The main trolley has two rope drums that are connected mechanically. Both have backup brakes.
- The auxiliary trolley allows loads to be tilted flexibly in multiple directions. It is operated with the main trolley and can be driven with it at synchronised speeds.
- Heat shields protect the crane from radiated heat.
- Motors and the differential gear reducer are located in the middle for easy maintenance.
- The transformer room is provided as an option when high-voltage electrical supply is used.
- Clamping allows rails to be renewed quickly if needed.
- The electrical room is pressurised and air-conditioned for reliable operation in harsh environmental conditions. Backup A/C units are included for continued, reliable A/C operation even if a unit is down.
The programmable logic controller (PLC) controls and monitors the crane with a special emphasis on safety-related functions. It is also the platform for Smart Features such as Sway Control and Shock Load Prevention.