In integrated steelmaking the GRANSHOT ® process is used as a back-up facility to handle excess iron (or steel) whenever downstream facilities are down, producing Granulated Pig Iron (GPI) or granulated steel.
The GRANSHOT ® plant decouples the pacing of the ironmaking and steelmaking units allowing the ironmaking unit to continue to operate at peak performance at all times. Besides an increased iron output, more stable iron making conditions results in other operational benefits. The pig iron composition and temperature variations are reduced which decreases the steelmaking operational costs.
High capacity granulation
The GRANSHOT ® equipment is designed for granulation of large batches of liquid metal at a rate of up to 250 tons/h per production line. These high metal flows are handled by the specially designed metal and water distribution systems in the granulation tank.
Multiple choices for plant configuration
The GRANSHOT ® plant is compact and only requires a plant footprint of approximately 15x10 m spanning from ladle tilting device to product discharge on conveyor belt. The GRANSHOT ® configuration is tailor made for each application. Several different alternatives are possible:
• Granulation from ladle in ladle-tilter via tundish
• Granulation from ladle in turret via tundish
• Granulation from torpedo via runners and tundish
• Granulation from ladle hanging in crane via tundish
• Granulation directly from furnace via runners and tundish.
The different configurations make it possible to design the plant based on the existing preconditions at site in order to achieve the best logistical solution for each production case.