Full
Outline
To solve the problem of scale formation in the equipment pipelines of the cold rolling mill, the physical descaling device made of nano-alloy materials was applied to the on-site renovation practice, and the scale removal mechanism was preliminarily investigated. The results showed that the average outlet water temperature of the heat exchanger increased by approximately 5 °C compared to the inlet, demonstrating enhanced heat exchange efficiency. No significant variation in heavy metal content was observed in the water, while the total bacterial count decreased by over 80%. Furthermore, the crystallization rate of CaCO3 in water was reduced, accompanied by a gradual transformation of the crystal morphology from rigid calcite to loose aragonite. The application of the nano-alloy materials not only yielded significant scale removal effect but also facilitated easier detachment of the accumulated scale.
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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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