Pelletizing ACE is an advanced process control solution for ore pelletizing operations, applying model predictive control to optimize green ball formation, induration furnace performance, and final pellet quality in balling and traveling grate circuits.
Pelletizing ACE applies ANDRITZ's Advanced Control Expert (ACE) platform to the optimization of ore pelletizing operations in the mining and metals industry. Pelletizing agglomerates fine ore concentrates into uniform spherical pellets through balling (disc or drum) and induration (firing) stages, producing a high-quality feed material for blast furnaces and direct reduction units used in steelmaking.
The pelletizing process involves multiple interacting variables: moisture content and binder addition during balling directly affect green ball size distribution and drop strength; burner management, airflow distribution, and temperature profiles in the induration furnace determine pellet compressive strength, porosity, and metallurgical properties; and discharge screening and fines recirculation manage overall throughput efficiency.
Pelletizing ACE applies model predictive control across these stages, maintaining target green ball size and moisture, optimizing furnace temperature profiles to meet pellet quality specifications while minimizing fuel consumption, and stabilizing throughput. The solution integrates with the plant DCS and existing instrumentation, supporting advisory or closed-loop operation.
