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AN INVESTIGATION OF FEED BOX SHAPE EFFECTS ON CONE CRUSHER PERFORMANCE BY DISCRETE ELEMENT METHOD (DEM) - THE SARCHESHMEH COPPER COMPLEX CONE CRUSHER CASE
By E. Nematollahi , S. Zare, F.Ghorbani, A.Ghasemi and S. Banisi
Published in International Mineral Processing Congress (IMPC) at 2018
Direct link: http://kmpchemmat.ir/pii/243104

Abstract
Comminution is the most energy intensive operation which constitutes the major portion of operating and capital costs of the mineral processing plants. Working at the maximum operating capacity of comminution equipment plays a significant role in the efficiency of the circuit. Appropriate design of cone crusher feed box could result in the choked crushing which is known as a vital factor in achieving target performance. In this research, the non-uniform cone crusher feeding at the Sarcheshmeh copper complex was studied and appropriate measures were taken to solve the problem. The problem resulted in non-uniform and high wear rate of crusher liners and high fluctuations of power draw. In recent decades, the discrete element method (DEM) has been applied successfully to study the effect of different factors on the behavior of particles flow. In this work, various designs for feed box were tested using an in-house developed DEM software called KMPCDEM©. The best feed box design obtained from the simulations was selected, constructed and installed in of the cone crushers. The new feed box design resulted in more uniform feed distribution on the distributor plate of crusher indicated by a reduction of the standard deviation of power draw measurements from 13 to 3 kWh. The better control of the crusher, 49% increase in the crusher throughput and finer and narrower product size distribution were the main outcomes of the installation of the new feed box. Furthermore, the wear rate on mantle and liners of crusher not only decreased but it also became uniform. ER -

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	All Years to Access Full-Text Export citations AN INVESTIGATION OF FEED BOX SHAPE EFFECTS ON CONE CRUSHER PERFORMANCE BY DISCRETE ELEMENT METHOD (DEM) - THE SARCHESHMEH COPPER COMPLEX CONE CRUSHER CASE By E. Nematollahi , S. Zare, F.Ghorbani, A.Ghasemi and S. Banisi Published in International Mineral Processing Congress (IMPC) at 2018 Direct link: http://kmpchemmat.ir/pii/243104 Abstract Comminution is the most energy intensive operation which constitutes the major portion of operating and capital costs of the mineral processing plants. Working at the maximum operating capacity of comminution equipment plays a significant role in the efficiency of the circuit. Appropriate design of cone crusher feed box could result in the choked crushing which is known as a vital factor in achieving target performance. In this research, the non-uniform cone crusher feeding at the Sarcheshmeh copper complex was studied and appropriate measures were taken to solve the problem. The problem resulted in non-uniform and high wear rate of crusher liners and high fluctuations of power draw. In recent decades, the discrete element method (DEM) has been applied successfully to study the effect of different factors on the behavior of particles flow. In this work, various designs for feed box were tested using an in-house developed DEM software called KMPCDEM©. The best feed box design obtained from the simulations was selected, constructed and installed in of the cone crushers. The new feed box design resulted in more uniform feed distribution on the distributor plate of crusher indicated by a reduction of the standard deviation of power draw measurements from 13 to 3 kWh. The better control of the crusher, 49% increase in the crusher throughput and finer and narrower product size distribution were the main outcomes of the installation of the new feed box. Furthermore, the wear rate on mantle and liners of crusher not only decreased but it also became uniform. ER - Keywords Cone crusher, DEM, Feed box design, Power draw fluctuations, Mantle wear, Sarcheshmeh.