Ultralow-energy-consumption grinding technology for non-ferrous metal ore
A non-ferrous metal and process technology, applied in the field of ultra-low energy consumption grinding process, to achieve the effect of uniform particle size distribution, simple configuration and easy industrial production
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[0018] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0019] Taking the porphyry copper deposit as an example, the Platts hardness coefficient is 12 and the ball milling work index is 16kwh / t. The method is carried out as follows:
[0020] (1) The grain size of the raw ore mined in the open and underground is -1000mm.
[0021] (2) Use conventional coarse crushing, medium crushing and fine crushing processes to crush the raw ore in step (1). Among them, coarse crushing and medium crushing are open-circuit crushed ore, fine crushing and sieve form a closed circuit, and the control fine crushing product is -12mm.
[0022] (3) Use a high-pressure rolle...
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