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Outline
The optimization of the crushing effect of high-pressure roller grinding is of crucial importance in relation to the enhancement of ore processing efficiency, the reduction of energy consumption, and the elevation of product quality. In order to investigate the influence of ore moisture content on the crushing effect of high-pressure rollers, with the magnetite ore from eastern Hebei selected as the research specimen, the interaction between high-pressure rollers and particles under different feed moisture content conditions was simulated by the combination with SolidWorks modeling and EDEM simulation. The simulation results indicate that, as the particle surface energy increases from 0 to 25 J/m2, the crushing effect in the high-pressure roller initially strengthens and then weakens, when the particle surface energy reaches 20 J/m2, the crushing effect is the best. Open-circuit test results under different feed moisture conditions show that as the feed moisture content rises from 0.11％ to 6％, the crushing performance of the high-pressure roller first improves and then deteriorates, aligning with the simulation trends. When the feed moisture content is within the 1.5％ to 4.5％ range, the product particle size after crushing is finer, and the crushing effect is more favorable.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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