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Well Washing Test of Small Diameter Submersible Pump in Injection Wells for In-situ Leaching of Uranium
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YAO Yixuan1, WANG Yaan1, XU Guolong1, LI Xinghao1, ZHANG Youpeng1, XU Ying1, YAO Chongxiao2
Uranium Mining and Metallurgy | 2024, 43(1) : 27 - 35
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Uranium Mining and Metallurgy | 2024, 43(1): 27-35
• MINING AND HYDROMETALLURGY •
Well Washing Test of Small Diameter Submersible Pump in Injection Wells for In-situ Leaching of Uranium
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YAO Yixuan1, WANG Yaan1, XU Guolong1, LI Xinghao1, ZHANG Youpeng1, XU Ying1, YAO Chongxiao2
Affiliations
  • 1 Beijing Research Institute of Chemical Engineering and Metallurgy, Beijing 101149, China
  • 2 Xi’an Feiliu Electromechanical Equipment Engineering Co., Ltd., Xi’an 710016, China
Published: 2024-02-20 doi: 10.13426/j.cnki.yky.2023.06.06
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There is severe blockage in the surrounding ore bearing layers of the injection well in a certain uranium leaching experimental mining area. The inner diameter of the casing of the injection well is only 80 mm. After the completion of conventional air compressor well washing, a small diameter submersible pump well washing test was carried out in three injection wells. The initial pumping capacity is around 4.5 m3/h, and the minimum pumping capacity during this period is 3.4 m3/h. The sand content of the first turbid flushing water from two wells is analyzed to be 4.36 and 5.19 kg/m3 respectively. Particle size, electron microscopy scanning, and chemical composition analysis show that the mineral debris in the settled dry residue of the well washing water is mainly composed of silt and fine sand debris, with a small amount of clay debris. Chemical precipitation mainly consists of CaCO3, MgCO3, and FeCO3. The submersible pump has operated for about 27.5 h accumulatively without any failure. The test shows that the submersible pump is feasible, with less investment, low cost, high safety and convenient implementation.

in-situ leaching of uranium  /  blockage in ore layers  /  submersible pump  /  well washing  /  settled dry
YAO Yixuan, WANG Yaan, XU Guolong, LI Xinghao, ZHANG Youpeng, XU Ying, YAO Chongxiao. Well Washing Test of Small Diameter Submersible Pump in Injection Wells for In-situ Leaching of Uranium[J]. Uranium Mining and Metallurgy, 2024 , 43 (1) : 27 -35 . DOI: 10.13426/j.cnki.yky.2023.06.06
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Year 2024 volume 43 Issue 1
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doi: 10.13426/j.cnki.yky.2023.06.06
  • Receive Date：2023-06-28
  • Online Date：2025-07-04
  • Published：2024-02-20
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  • Received：2023-06-28
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Affiliations
    1 Beijing Research Institute of Chemical Engineering and Metallurgy, Beijing 101149, China
    2 Xi’an Feiliu Electromechanical Equipment Engineering Co., Ltd., Xi’an 710016, China
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https://castjournals.cast.org.cn/joweb/yky/EN/10.13426/j.cnki.yky.2023.06.06
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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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