| 摘要 |
<p>The invention relates to the mining industry, more specifically to devices for grinding ore material. Said invention can be successfully used for mining and processing mills. The inventive device comprises a unit (1) for supplying initial ore material connected to the input (3) of an autogenous grinding mill (4), a unit (6) for size classification of said ore material arranged at the output (5) of the mill (4) and a crusher (7) for grinding critical size material which is connected to the unit (6) and whose output is connected to the input (3) of the mill (4). The novelty of the invention lies in that a second unit (8) for size classification of ore material is arranged prior to the input (3) of the mill (4). Said second unit (8) is connected to the input of the crusher (7) for grinding critical size material and to the input (3) of the mill (4). The unit (6) for size classification of ore material is arranged at the output (5) of the mill (4) and connected to the crusher (7) through the second unit (8) for size classification of ore material.</p> |
