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Study on Optimization of Settling Process and Microstructure of Flocculant used in Benxi Iron Tailings
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Dan WANG1, Yiye ZHANG2, Ning WANG2, Guoguang HU3, Di RAN1
Mining Research and Development | 2025, 45(1) : 178 - 185
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Mining Research and Development | 2025, 45(1): 178-185
Study on Optimization of Settling Process and Microstructure of Flocculant used in Benxi Iron Tailings
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Dan WANG1, Yiye ZHANG2, Ning WANG2, Guoguang HU3, Di RAN1
Affiliations
  • 1.College of Mechanical Engineering, Shenyang Urban Construction University, Shenyang, Liaoning 110167, China
  • 2.Liaoning Donghe Mining & Metallurgy Technology Co., Ltd., Shenyang, Liaoning 110623, China
  • 3.Benxi Sishanling Zhongtai Mining Co., Ltd., Benxi, Liaoning 117013, China
Published: 2025-01-25
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In order to solve the problem of slow settling of iron tailings in a concentrator in Benxi, the appropriate flocculant was selected through the flocculant optimization test. The effects of slurry mass concentration, flocculant unit consumption and slurry pH on flocculant settling were investigated by single factor test. The microstructure of the settling process was observed microscopically, and the settling law of iron tailings was summarized. The results show that the natural settling basically ends at 600 min, and the sediments after reaching the critical point of settling will undergo the main consolidation stage and the secondary consolidation stage. The main consolidation stage ends at 2 000 min, and the secondary consolidation stage ends at 3 500 min. The height of the clarification layer remains stable immediately. The flocculation effect is the best when the flocculant is anionic polyacrylamide (APAM), slurry mass concentration is 15%, flocculant unit consumption is 20g/t, and slurry pH=9. Under this condition, the solid content of 10 min is 233.13 mg/L, and the settling rate of 10 min is 67.15%.

Iron tailings  /  Flocculant  /  Settling mechanism  /  Microstructure
王丹, 张艺邺, 王宁, 胡国光, 冉迪. 本溪某铁尾矿絮凝剂沉降过程优化及细观结构研究. 矿业研究与开发, 2025 , 45 (1) : 178 -185 .
Dan WANG, Yiye ZHANG, Ning WANG, Guoguang HU, Di RAN. Study on Optimization of Settling Process and Microstructure of Flocculant used in Benxi Iron Tailings[J]. Mining Research and Development, 2025 , 45 (1) : 178 -185 .
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Year 2025 volume 45 Issue 1
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27
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Article Info
  • Receive Date：2024-03-07
  • Online Date：2026-10-29
  • Published：2025-01-25
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  • Received：2024-03-07
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Affiliations
    1.College of Mechanical Engineering, Shenyang Urban Construction University, Shenyang, Liaoning 110167, China
    2.Liaoning Donghe Mining & Metallurgy Technology Co., Ltd., Shenyang, Liaoning 110623, China
    3.Benxi Sishanling Zhongtai Mining Co., Ltd., Benxi, Liaoning 117013, China
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表12种不同金属材料的力学参数
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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