Experimental Research and Production Practice of Reasonable Ore Blending of Jiama Complex Copper-Polymetallic Ore
-
摘要:
针对甲玛矿区铜矿物种类多、分布不匀、各矿井矿石性质差异大等特点，本文在矿石工艺矿物学研究基础上，对各矿井矿石进行了可选性实验研究，并结合各矿井生产实际，开展了选矿厂入选矿石合理配矿的小型优化实验和生产实践。通过合理配矿方案优化、磨矿中巧妙应用硫化钠、快速浮选等技术措施，连续27天工业生产实践获得铜精矿中铜品位21.90%、金品位8.04 g/t、银品位447.04 g/t，铜回收率91.75%，金回收率67.63%，银回收率66.12%，与合理配矿及工艺技术优化前的年技术指标累计相比，铜金银回收率分别提高1.85、2.27、3.17个百分点. 实现了矿产资源的高效综合利用，取得显著的经济效益和社会效益。
Abstract:Aiming at the characteristics of the variety and uneven distribution of copper minerals in Jiama mining area, and the large differences in the properties of various mines, this paper conducts a test study on the selectability of various mines based on the study of ore technological mineralogy. Combining the various mines in actual production, a small-scale optimization test and production practice of reasonable ore blending of the selected ore from the concentrator have been carried out. Through the optimization of reasonable ore blending schemes, the clever use of sodium sulfide in grinding, and rapid flotation and other technical measures, the industrial production practice for 27 consecutive days has obtained copper grades of 21.90%, gold grades of 8.04 g/t, and silver grades of 447.04 g/ t, the copper recovery rate is 91.75%, the gold recovery rate is 67.63%, and the silver recovery rate is 66.12%. Compared with the cumulative annual technical indicators before reasonable ore blending and process technology optimization, the copper, gold and silver recovery rates are increased by 1.85%, 2.27%, 3.17%, respectively Percentage points. The efficient and comprehensive utilization of mineral resources has been realized, and significant economic and social benefits have been achieved.
-
-
表 1 各矿井代表性试样的主金属品位分析结果/%
Table 1. Main metal grade analysis results of representative samples in each ore
矿井编号 Cu Pb Zn Au* Ag* A 0.78 0.02 0.051 0.47 15.73 B 0.71 0.014 0.057 0.32 19.78 C 0.72 0.0086 0.052 0.31 19.92 D 0.61 0.73 0.4 0.21 21.88 *单位为g/t。 
下载: 导出CSV
表 2 各矿井代表性试样铜矿石物相分析结果
Table 2. Phase analysis results of copper ores with representative samples in each ore
矿井编号及项目 硫酸铜
中Cu氧化铜
中Cu次生硫化铜中Cu 原生硫化铜中Cu 总Cu A 含量% 0.006 0.009 0.454 0.311 0.78 占有率% 0.80 1.10 58.23 39.87 100.00 B 含量% 0.0043 0.006 0.232 0.468 0.71 占有率% 0.60 0.80 32.65 65.95 100.00 C 含量% 0.006 0.004 0.310 0.399 0.72 占有率% 0.80 0.60 43.12 55.48 100.00 D 含量% 0.010 0.025 0.054 0.520 0.61 占有率% 1.70 4.10 8.90 85.30 100.00
下载: 导出CSV
表 3 各矿井代表性试样矿石可选性闭路浮选实验结果
Table 3. Closed-circuit flotation test results of ore separability of representative samples of each ore
矿点 产品
名称产率/% 品位/% 回收率/% Cu Au* Ag* Cu Au Ag A 铜精矿 2.37 30.79 14.89 423.3 93.55 75.08 63.78 尾 矿 97.63 0.05 0.12 5.84 6.45 24.92 36.22 原 矿 100.00 0.78 0.47 15.73 100.00 100.00 100.00 B 铜精矿 2.47 26.34 9.89 568.4 91.63 76.34 70.98 尾 矿 97.53 0.06 0.08 5.89 8.37 23.66 29.02 原 矿 100.00 0.71 0.32 19.78 100.00 100.00 100.00 C 铜精矿 2.34 28.34 8.89 573.3 92.11 67.11 67.35 尾 矿 97.66 0.06 0.10 6.66 7.90 32.89 32.65 原 矿 100.00 0.72 0.31 19.92 100.00 100.00 100.00 D 铜精矿 3.89 13.54 1.88 245.5 86.35 40.63 53.89 尾 矿 96.11 0.09 0.11 8.50 13.65 59.37 46.11 原 矿 100.00 0.61 0.18 17.72 100.00 100.00 100.00 *单位为 g/t。
下载: 导出CSV
表 4 综合样调整剂种类实验结果
Table 4. Test results of comprehensive sample adjuster types
调整剂种类及用量/(g·t-1) 产品名称 产率/% 品位/% 回收率/% Cu Au* Ag* Cu Au Ag 石灰：1000
（pH=8.5~9）铜粗精矿 7.41 9.02 3.11 143.50 91.56 62.28 59.50 尾 矿 92.59 0.067 0.15 7.82 8.44 37.72 40.50 原 矿 100.00 0.73 0.37 17.87 100.00 100.00 100.00 石灰：1000
六偏磷酸钠：200
（pH=8.5~9）铜粗精矿 3.96 16.58 5.23 218.50 89.94 55.98 48.42 尾 矿 96.04 0.076 0.17 9.60 10.06 44.02 51.58 原 矿 100.00 0.73 0.37 17.87 100.00 100.00 100.00 石灰：1000
硫化钠：200
（pH=8.5~9）铜粗精矿 4.68 14.48 5.43 251.54 92.83 68.68 65.88 尾 矿 95.32 0.055 0.12 6.40 7.17 31.32 34.12 原 矿 100.00 0.73 0.37 17.87 100.00 100.00 100.00 *单位为g/t。
下载: 导出CSV
表 5 原生产工艺与快速浮选工艺实验结果
Table 5. Closed-circuit optimized flotation test results of original production process and rapid flotation process
工艺流程 产品名称 产率/% 品 位/% 回收率/% Cu Au* Ag* Cu Au Ag 原生产工艺 铜精矿 2.66 25.32 9.56 455.70 92.26 68.73 67.83 尾 矿 97.34 0.058 0.12 5.91 7.74 31.27 32.17 原 矿 100.00 0.73 0.37 17.87 100.00 100.00 100.00 快速浮选工艺 铜精矿1 1.33 21.42 7.65 376.5 39.03 27.50 28.02 铜精矿2 1.77 22.72 9.02 424.9 55.09 43.15 42.09 尾 矿 96.90 0.044 0.11 5.51 5.89 29.35 29.89 原 矿 100.00 0.73 0.37 17.87 100.00 100.00 100.00 *单位为 g/t。
下载: 导出CSV
表 6 工业生产技术指标累计结果
Table 6. Accumulated results of technical indexes consecutive days of industrial production selection
产品
名称产量/t 品位/% 回收率/% Cu Au* Ag* Cu Au Ag 铜精矿 4972.83 21.897 8.036 447.040 91.75 67.63 66.12 尾 矿 170811.17 0.061 0.119 7.120 8.25 32.37 33.88 原 矿 175784.00 0.718 0.357 20.351 100.00 100.00 100.00 *单位为 g/t。
下载: 导出CSV
-
[1] 松建军, 舒怀俊. 配矿管理技术在选矿厂矿石品位稳定性中应用[J]. 世界有色金属(14): 152-153.
SONG J J, SHU H J. Application of ore blending management technology in the stability of ore grade in concentrator [J]. World Nonferrous Metals (14): 152-153.
[2] 吕旭龙, 衷水平, 印万忠, 等. 某铜冶炼企业冶炼炉渣配矿浮选试验研究[J]. 矿产综合利用, 2019(1):114-118. doi: 10.3969/j.issn.1000-6532.2019.01.025
LV X L, ZHONG S P, YIN W Z, et al. Experimental study on flotation of different proportion smelter slag in a copper smelting enterprise[J]. Multipurpose Utilization of Mineral Resources, 2019(1):114-118. doi: 10.3969/j.issn.1000-6532.2019.01.025
[3] 韩西鹏, 房启家, 张伟, 等. 金岭铁矿选矿厂配矿生产研究与实践[J]. 现代矿业, 2013, 29(2):143-144. doi: 10.3969/j.issn.1674-6082.2013.02.054
HAN X P, FANG Q J, ZHANG W, et al. Research and practice on ore blending production in Jinling Iron Mine Concentrator[J]. Modern Mining, 2013, 29(2):143-144. doi: 10.3969/j.issn.1674-6082.2013.02.054
[4] 金晓云, 张林友, 惠世和. 配矿在提高某铅锌矿山选矿回收率中的作用 [J] 资源再生, 2010, (1): 45-47.
JIN X Y, ZHANG L Y, HUI S H. The role of ore blending in improving the recovery rate of a lead-zinc mine[J]. Resources Recycling, 2010, (1): 45-47.
[5] 王漪靖, 朱永安. 金堆城不同类型矿石选矿工艺及选别方法探讨[J]. 中国钼业, 2002(2).
WANG Y J, ZHU Y A. Discussion on beneficiation technology and separation methods of different types of ores in Jinduicheng [J]. China Molybdenum Industry, 2002(2).
[6] 杜海青. 高原缺氧地区多金属矿的开发思考—以西藏甲玛特大型铜多金属矿开发为例[J]. 黄金, 2011, 32(12):1-4. doi: 10.3969/j.issn.1001-1277.2011.12.001
DU H Q. Thinking about the development of polymetallic deposit in high altitude hypoxia areas- with the development of Jiama oversize copper polymetallic deposit as example [J]. Gold, 2011, 32(12):1-4. doi: 10.3969/j.issn.1001-1277.2011.12.001
[7] 刘明实, 刘璇遥, 赵艳宾, 等. 基于高海拔地区选矿废水零排放的铜铅锌选矿试验研究[J], 甘肃冶金, 2012, 36(6): 4-8.
LIU M S, LIU X Y, ZHAO Y B, et al. Experimental study on copper, lead and zinc beneficiation based on zero discharge of mineral processing wastewater in high altitude area [J]. Gansu Metallurgy, 2012, 36(6): 4-8.
-
图(3)
表(6)
计量
- 文章访问数: 688
- PDF下载数: 7
- 施引文献: 0