New technology used to prepare ore for flotation based on impact comminution technique

Mineral Engineering Conference

Wieniewski, A.^1 ; Skorupska, B.^1 ; Osoba, M.^1

Institute of Non-ferrous Metals, Sowiskiego 5, Gliwice

44-100, Poland^1

关键词: Beater wheel mills;    Cleaning circuits;    Flotation process;    Grinding circuits;    High energy mills;    Impact comminution;    New technologies;    Ore preparation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/427/1/012034/pdf
DOI  :  10.1088/1757-899X/427/1/012034

来源: IOP

【 摘 要 】

The paper presents a new design of a high-energy mill and describes a pilot installation equipped with a high-energy mill with an output of 3-7(8) Mg/h. The mill design was developed on the basis of a beater wheel mill used to pulverize coal. The potential of reaching good grinding results has been confirmed for the new mill. Achieved degrees of grinding for copper ore initially crushed in hammer and cone crushers range from over 80 to more than 150. The concept of a procedure based on a single-stage method of ore preparation for flotation process is discussed herein. The main elements of the technology are: preliminary flotation as an element of effective preparation of ore for the roughing flotation process, intensive roughing flotation, conventional cleaning circuit, separate processing of middlings with a grinding circuit involving the new type of mills and flotation with separation of tailings as the second component of the final waste.