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To solve problems of high power-consumption and difficulty in load prediction of a ball mill, a comprehensive detection system based on non-magnetic sensing was proposed. The non-magnetic coupling sensing technology is used to monitor the mill load without being affected by the magnetism of materials therein. Combined with the low-power cylinder vibration detection unit, which can more accurately reflect the actual load characteristics, the vibration data can be transmitted to the signal acquisition unit via wireless transmission, through which the difficulty for signal acquisition unit to take electric power from cylinder can be solved. By integrating the mill sound collection data, the loading characteristics of a mill can be predicted adopting the edge algorithm unit aided by in-depth learning. Then, the prediction can be fed back to the PLC controller for real-time adjustment of ore feeding and ball-adding, so as to realize the closed-loop control of the system. This system can greatly improve the milling efficiency, stabilize the production indicators, and reduce the energy consumption. The trial test result in an ore dressing plant has verified that this system demonstrates a satisfying effect in detecting mill load.
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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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