Full
Outline
To address problems of cumbersome procedures, time-consuming and high cost for traditional flotation test of molybdenum-bismuth ores, a Bayesian optimization (BO)-based reagent optimization model and a reagent simulation model with combining functions were established for molybdenum-bismuth ore flotation. The simulation functions of flotation reagent were processed with the BO-based model, and it is shown that in a test with 100 sets of computer simulation, the maximum of the function by BO after 25 iterations was 0.93 on average, compared to the optimum value of 0.86 after 25 trials by conventional single-factor test, presenting a 8.14% rise. This verifies the feasible application of BO applied in reagent optimization for molybdenum-bismuth flotation. The laboratory mineral processing data from a concentrator were taken in a study with BO. A model of ore grade and recovery was established via Gaussian process for model fitting. For obtaining the maximum of objective function by multiple iterations, it required an average of 18 iterations by using BO, while 30 trials on average were required by conventional single-factor test. It is concluded that BO can improve the optimization efficiency by 40%.
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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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