Details | KMPC Hemmat

IMPROVING PERFORMANCE OF THE SARCHESHMEH COPPER COMPLEX CU-MO THICKENER
By F. Molhem , Gh.A. Parsapour , H.R. Montazari ), E. Arghavani , Gh.R. Biniyaz and S. Banisi
Published in International Mineral Processing Congress (IMPC) at 2018
Direct link: http://kmpchemmat.ir/pii/243037

Abstract
Water plays a key role in mineral processing plants and to process one ton of ore 2.5 ton water is needed. Thickeners are commonly used for dewatering and recovering water in most processing plants. The underflow pulp density is increased by sedimentation of particles and clear water is recovered from the overflow. One of the issues related with using the process water is the presence of suspended fine particles in the clear overflow water which can create blockage in transfer pipes. The froth formed on top of thickeners is the main cause of this problem. In this study, a method to decrease the froth formed on the Sarcheshmeh Cu-Mo thickener surface was introduced and implemented. At the first stage, the old punched plate feedwell was removed and it was replaced by a vane type feedwell. A spray water ring using fish-tail type nozzles was then installed to break froth layers by water. These modifications led to 63% relative reduction in the water turbidity, 11% relative increase in the underflow solids concentration, 20% relative reduction in torque, 19% relative reduction in its standard deviation and an increase of 6% in water recovery. ER -

	Login About
		KMPC Hemmat A Mineral Processing Digital Library
	All Years to Access Full-Text Export citations IMPROVING PERFORMANCE OF THE SARCHESHMEH COPPER COMPLEX CU-MO THICKENER By F. Molhem , Gh.A. Parsapour , H.R. Montazari ), E. Arghavani , Gh.R. Biniyaz and S. Banisi Published in International Mineral Processing Congress (IMPC) at 2018 Direct link: http://kmpchemmat.ir/pii/243037 Abstract Water plays a key role in mineral processing plants and to process one ton of ore 2.5 ton water is needed. Thickeners are commonly used for dewatering and recovering water in most processing plants. The underflow pulp density is increased by sedimentation of particles and clear water is recovered from the overflow. One of the issues related with using the process water is the presence of suspended fine particles in the clear overflow water which can create blockage in transfer pipes. The froth formed on top of thickeners is the main cause of this problem. In this study, a method to decrease the froth formed on the Sarcheshmeh Cu-Mo thickener surface was introduced and implemented. At the first stage, the old punched plate feedwell was removed and it was replaced by a vane type feedwell. A spray water ring using fish-tail type nozzles was then installed to break froth layers by water. These modifications led to 63% relative reduction in the water turbidity, 11% relative increase in the underflow solids concentration, 20% relative reduction in torque, 19% relative reduction in its standard deviation and an increase of 6% in water recovery. ER - Keywords Thickener; Vane Feedwell; Torque; Turbidity; Fish-tail nozzle; Density.