Abstract
The studies were carried out under the contracts with the company CJSC “Zapolyarny filial Norilsk Nickel” (Russian Federation), Zangezur Mining and Processing Plant (Republic of Armenia) and Almalyk Mining and Metallurgical Plant (Republic of Uzbekistan). The authors are grateful to Prof. Ciril O’Connor, President of the International Minerals Processing Congress, Center for Minerals Research, University of Cape Town (South Africa), Academician of RAS, Prof. V.A. Chanturia, for the comprehensive support of the scientific research related to the intensification of the processes associated with ore preparation for concentration. The authors extend their thanks to NPK “Mekhanobr-tekhnika” and LLC “Resurs” for the provided base and assistance in organizing experimental studies, as well as to all employees of the above mentioned organizations, who had participated in implementation of the studies at enterprises of the industry.
Highlights
The authors established the dependences of the grinding material content of the size –100 μm on the free space filling coefficient with the material for sand and marble during dry and wet grinding
The materials resulting from studying processes of grinding mineral raw materials in ball mills are presented
It was established that the mineral raw particles destruction in ball mills occurs within the layer as a result of the layers discrete sliding of the ball charge along the ascending trajectories while effectively filling the free space between the balls with the material to be crushed
Summary
The objectives of this study are as follows:
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