Investigating Dynamic Behavior in SAG Mill Pebble Recycling Circuits: A Simulation Approach
Artikel i vetenskaplig tidskrift, 2024

The dynamics of milling circuits, particularly those involving Semi-Autogenous Grinding (SAG) mills, are not adequately studied, despite their critical importance in mineral processing. This paper aims to investigate the dynamic behavior of an SAG mill pebble recycling circuit under varying feed ore conditions, focusing on both uncontrollable parameters (such as ore hardness) and controllable parameters (including circuit layout and pebble crusher configurations). The study is carried out with Simulink dynamic simulations. Our findings reveal several key insights. Firstly, plant designs based solely on static simulations may not be adequate for large or complex circuits, as they fail to account for the dynamic nature of milling processes. Second, incorporating stockpiles after pebble crushing can effectively mitigate the impact of dynamic fluctuations, leading to more stable circuit performance. Third, different circuit layouts can facilitate easier maintenance and operational flexibility. Notably, finer pebble crushing can enhance circuit throughput by 5% to 10%.

pebble

dynamics

cone crusher

simulation

SAG mill

Författare

Haijie Li

FLSmidth AS

Gauti Asbjörnsson

Chalmers, Industri- och materialvetenskap, Produktutveckling

Kanishk Bhadani

Chalmers, Industri- och materialvetenskap, Produktutveckling

Magnus Evertsson

Chalmers, Industri- och materialvetenskap, Produktutveckling

Minerals

2075-163X (eISSN)

Vol. 14 7 716

Ämneskategorier

Annan maskinteknik

Annan elektroteknik och elektronik

DOI

10.3390/min14070716

Mer information

Senast uppdaterat

2024-08-05