云南保山矽卡巖型銅鉛鋅共生礦選礦試驗

1、云南保山矽卡巖型銅鉛鋅共生礦選礦中間試驗王曉慧梁友偉張麗軍（中國地質科學院礦產綜合利用研究所，中國地質調查局金屬礦產資源綜合利用技術研究中心四川成都 610041）摘要：在選礦中間試驗條件下，對云南保山地區(qū)矽卡巖型銅鉛鋅共生礦進行了浮選試驗研究，取得了較好的選礦指標。中間試驗選礦指標為：銅精礦銅品位18.57%，回收率78.04%;鉛精礦鉛品位67.37%，鉛回收率58.26% ；鋅品位49.11%，鋅回收率88.57%。為開發(fā)該礦提供了選礦技術依據。關鍵詞：矽卡巖型；銅鉛鋅共生礦；浮選；中間試驗中圖分類號：TD923 ； TD954 文獻標志碼：A 文章編號：1000-6532（ 2016）

2、04-00云南保山地區(qū)矽卡巖型銅鉛鋅共生礦選礦中間試驗采用的選礦工藝流程是在小型試驗室試驗的基礎上1-6，經過連續(xù)擴大試驗進一步改進，最終確定的一段磨礦-銅鉛混浮-混浮尾礦選鋅-混浮精礦銅鉛分離-分離尾礦搖床選鉛的原則工藝流程。1選礦中間試驗選礦中間試驗分為個別設備的單機調試、連續(xù)調試，穩(wěn)定運轉三個階段。中間試驗處理量為60kg/h,在連續(xù)調試后，穩(wěn)定運轉72h（ 9班），取樣分析計算每個班的試驗指標，并在穩(wěn)定運轉期進行流程考察。1.1礦樣所取中間試驗礦樣經過兩段顎式開路破碎機破碎后再經過輥破碎機與篩分形成三段一閉路破碎流程，最終經過篩分機控制產品粒度-2mm并混勻。試驗原礦樣化學分析結果見表

3、1。表1礦石樣化學分析結果Table 1Main chemical compositi on an alysis of the ore名稱CuPbZnTFeSCaOMgOAl 2O3SiO2AsAu*Ag含量/%0.580.753.1417.282.6818.052.092.0636.440.0120.07312.2*單位為g/t。1.2選礦中間試驗結果試驗過程控制及要求在進行中間試驗之前，為確保中間試驗過程穩(wěn)定進行，需要對試驗給礦量、磨礦細度、藥劑配 置及給藥量提出具體要求，以便于中間試驗進行調整。（1）給礦要求：按試驗要求的給礦量進行給礦，每小時測定一次，并按要求給礦量進行校正。（2）磨礦

4、細度要求：每小時測定一次最終磨礦細度，并按試驗要求的磨礦細度進行調整校正。（3）藥劑配置要求：根據試驗所需藥量進行相應藥劑配置，給藥量每半小時測定一次，并按試 驗要求進行調整。收稿日期：2015-12-22基金項目：國家地質大調查項目（項目編碼 ：）資助作者簡介：王曉慧（1985），女，工程師，碩士，主要從事選礦工藝技術研究。1.2.2試驗工藝流程試驗采用的原則工藝流程為:段磨礦-銅鉛混浮-混浮尾礦選鋅-混浮精礦銅鉛分離-分離尾礦搖床選鉛。試驗工藝流程、藥劑制度及取樣點設置見圖1。原礦圖例-磨礦細度-礦漿濃度0 -礦樣品位硫酸鋅）（混浮精選I硫酸鋅X混浮精選n硫酸鋅汎rx混浮精選川石灰EMY-

5、306 X分離粗選鋅精礦I分離精選"0分離<掃詵I 0分離銅精礦磨礦腐植酸鈉，六偏磷酸鈉乂硫酸鋅X乙黃藥，2#油粗選混浮 0汎硫酸鋅混浮X乙黃藥,2#油掃選X硫酸銅/ 丁黃，2#油粗選丁基黃藥鋅精 0鋅精選n鋅精選川掃詵n搖床:分選 0（* 2#油鋅掃鋅掃尾礦 0鉛精礦圖1選礦中間試驗工藝流程圖及取樣點設置圖Figi The test process of pilot test and gatheri ng spots of test for pilot test選礦中間試驗指標(1)選礦中間試驗共穩(wěn)定運轉9個班72h,累計處理礦石 4.32t。磨礦細度為-0.074 mm85

6、%,統(tǒng)計結果見表2。表2試驗礦量及磨礦細度統(tǒng)計Table 2 The test results of mineral quantity and grinding fineness班次班1班2班3班4班5班6班7班8班9礦量/kg480.15475.16490.30469.58478.62482.14481.35479.13483.5774 um含量/%85.1784.5383.2185.5586.1283.2486.3786.1785.59(2)選礦中間試驗浮選藥劑及種類統(tǒng)計結果見表3、4。表3混合浮選藥劑種類及用量Table3 The results of reage nt type and

7、 dosage of bulk flotati on藥劑種類硫代硫酸鈉腐殖酸六偏磷酸鈉硫酸鋅乙基黃藥2#油配置濃度5%5%5%10%0.5%原液精選山50作士斗精選n100業(yè)精選I280用粗選700200200200042.510量掃選I750205合計700200200318062.515表4鋅浮選及銅鉛分離作業(yè)藥劑種類及用量Table 4 The results of reage nt type and dosage for flotati on test of zincand copper-lead separati ong/t藥劑種類硫酸銅丁基黃藥2#油石灰EMY-360配置濃度5%0

8、.5%原液1%0.5%作鋅粗選4953210業(yè)鋅掃選105用分離精選70150量分離掃選100250合計4954215170400(3)試驗技術指標統(tǒng)計結果見表5。1.3選礦中間試驗流程考察選礦中間試驗穩(wěn)定運轉穩(wěn)定后， 進行了 8小時的流程考察，每半小時取樣一次，共計取樣16次。 試驗流程樣取樣點設置見圖1,數質量流程見圖2,礦漿平衡流程見圖 3。表5選礦中間試驗班樣選礦指標統(tǒng)計結果Table 5 The results of nine classes flotati on in dex of pilot test班次品位/%回收率/%產品CuPbZnCuPbZn銅精礦18.279.834.8

9、478.3727.543.81班1鉛精礦2.5567.731.333.2757.360.31鋅精礦0.570.6249.305.604.0288.80尾礦0.0760.100.2312.7611.087.08銅精礦18.588.075.6976.4724.134.54班2鉛精礦2.9967.561.243.6860.460.30鋅精礦0.550.5447.975.193.7087.67尾礦0.0910.100.2414.6611.717.50銅精礦19.226.465.1575.4421.753.94班3鉛精礦2.7866.461.293.2666.900.29鋅精礦0.490.4350.64

10、4.403.3188.59尾礦0.110.0610.2416.908.047.18銅精礦18.998.325.0080.3624.823.97班4鉛精礦2.3267.841.372.9460.520.33鋅精礦0.510.4948.864.943.3588.86尾礦0.0710.0970.2211.7611.326.84銅精礦18.328.035.0874.8724.094.08班5鉛精礦2.3167.551.352.8260.600.32鋅精礦0.760.5747.867.113.9288.05尾礦0.0950.0970.2415.0211.397.55銅精礦19.188.274.8474.

11、0925.613.86班6鉛精礦2.8665.601.223.2660.770.29鋅精礦0.830.5748.357.244.0488.35尾礦0.110.0790.2416.419.587.49銅精礦19.718.585.0179.1925.973.82班7鉛精礦2.2769.561.382.7362.960.31鋅精礦0.530.4750.734.883.2688.42尾礦0.0840.0660.2513.217.827.45銅精礦17.948.733.7779.2826.403.08班8鉛精礦2.3068.521.343.0461.970.33鋅精礦0.500.5048.245.063

12、.4690.50尾礦0.0730.0690.1912.638.176.09銅精礦19.837.944.4680.1729.903.52班9鉛精礦3.1765.551.323.8358.160.31鋅精礦0.480.4550.044.443.3090.31尾礦0.0730.0810.2011.558.645.842選礦中間試驗產品檢查2.1試驗產品主要化學成分分析選礦中間試驗最終各產品主要化學成分分析結果見表6。表6精礦主要化學成分分析結果Table 8 The main comp onent an alysis of the concen trati on %名稱CuPbZnAsBiSbMgO

13、Au*Ag*SiO2SFeAl 2O3銅精礦18.758.404.940.0130.0310.00810.670.52159/鉛精礦2.6267.371.320.33/0.120.306781.0516.66.130.19鋅精礦0.580.5249.110.02/7.24/8.43/*單位：g/t2.2尾礦沉降試驗選礦中間試驗尾礦沉降試驗條件見表7,沉降曲線見圖4o o o o o O5 0 5 0 5112 2 )m卩度高降沉300010203040506070沉降時間(min)圖4尾礦沉降曲線Fig4 The settl ing curse of taili ngs表7沉降試驗條件Tabl

14、e7 The con diti on of sedime ntatio n test尾礦干礦/g礦漿濃度/%量筒容積/mL沉降高度/mm壓縮層/mm壓縮層礦漿濃度/%23019.49100031030018.66從圖4看出，浮選尾礦沉降完全大約需要40min，沉降速度較慢。3結論（1 ）選礦中間試驗穩(wěn)定運行 9個班，共計72 h，處理原礦量4.32 t;磨礦細度為-0.074 mm占85%。 試驗指標為：原礦中 Cu含量0.58%、Pb含量0.74%、Zn含量2.98% ;銅精礦中Cu含量18.57%、 回收率78.04% ;鉛精礦中Pb含量67.37%、回收率58.26% ;鋅精礦中Zn含量

15、49.11%、回收率88.57%。（2 ）選礦中間試驗指標表明，針對云南保山地區(qū)矽卡巖型銅鉛鋅共生礦的性質特點，采用一段磨礦-銅鉛混浮-混浮尾礦選鋅-混浮精礦銅鉛分離-分離尾礦搖床選鉛的原則工藝流程是合理的，實際可操作性強，試驗指標穩(wěn)定可靠。本次試驗為綜合回收云南保山矽卡巖型鉛鋅鐵銅共生礦資源中銅、 鉛、鋅等有價元素提供了可靠的技術依據。參考文獻：1邵廣全，張心平，劉萬峰，等.哈薩克斯坦微細粒嵌布赤鐵礦選礦工藝研究J.有色金屬（選礦部分），2006(3): 23-27.:2邵廣全，劉萬峰，陳金中，等.巴爾布拉烏赤鐵礦選礦工藝擴大試驗研究J.有色金屬(選礦部分)，2006(5)： 20-24.:

16、3 汪兆龍，嚴小陵.蘭坪鉛鋅礦選礦擴大試驗J.云南冶金，2003 (10): 70-74.:4王曉慧，梁友偉，張麗軍.云南某銅鉛鋅多金屬硫化礦石浮選試驗J.金屬礦山，2015 (10): 80-84.:5馬龍秋，周世杰，李闊，等.內蒙古某高硫銅鉛鋅多金屬礦浮選試驗J.金屬礦山，2012 ( 7): 71-75.:6黃建芬.某復雜銅鉛鋅多金屬礦選礦J.金屬礦山，2012 ( 11): 71-75.Study on the Pilot Test of Copper-lead-z inc Skarn Sulphides in Baosha nYunnanWang Xiaohui, Lia ng Yo

17、uweiZha ng Lijun(Institute of Multipurpose Utilization of Mineral Resources,Research Center of Metal Mineral Resources Multipurpose Utilization ，China Geological Survey，Chengdu, Sichuan, China) Abstract: In the present paper flotation research on skarn-type Cu-Pb-Zn associated mine in Baoshan Yunnan

18、 was carried out duri ng pilot test and obta ined much better flotati on in dex. Then copper concen trate with Cu grade of 18.57% and recovery of 78.04%, lead concen trate with Pb grade of 67.37% and recovery of58.26% and zinc concen trate with Zn grade of 49.11% and recovery of 88.57% are obta ined

19、 respectively. A refined ben eficiatio n test in dicator had bee n obta in ed, which provides a basis for reas on ably recoveri ng these min eral resources.Keywords: Skarn-type; Cu-Pb-Zn associated mine; Flotation;Pilot test100.000.58100.000.742.970.76圖例:3 Cu 3 Pd 3 Z n£ Cu £ Pd £ Zn1

20、00.003.060.61103.29 108.45106.31106.39混浮10.6914.195.814.6485.5388.959.08粗選0.130.132.9398.65 22.9217.3697.319.9813.006.355.20 89.4991.3611.121.711.429.021.564.602.994.7412.983.9617.035.50精選I13.5317.965.213.64 84.8988.376.38混浮精選 n88.6491.147.3314.4519.314.623.4084.6888.735.29混浮0.56竺空14.05 18.54 4.803.

21、63 87.96 90.95 5.87 精選川混浮0.140.132.9399.70 23.8418.1498.29掃選I1.291.422.841.73 3.853.321.650.510.552.761.05 0.92 0.780.9810.823.962.412.043.24混浮0.120.112.9397.97 掃選n 19.9914.8296.640.110.112.9396.92 -19.0714.0495.66混浮0.150.13101.11 25.7517.32110.36鋅粗選混浮6.79 6.418.790.32 3.75 2.77 0.950.700.5639.077.4

22、3 8.925.6297.7514.7619.914.413.31 84.2188.184.92精選W0.790.60 36.258.77 11.95 7.09107.04鋅精選95.260.100.0920.4016.8311.7012.610.110.0960.4493.6818.3812.4014.14鋅掃選8.27 7.137.550.23 3.28 2.220.586.70580.5243.38385.2497.861.000.6613.172.07 3.571.859.180.850.50 7.732.12 3.111.43 5.5215.24 20.65 4.193.08 80.

23、93 85.96 4.345.36°580.5249.11鋅80.760.56 42.197.15 精選 n 9.37 5.45 101.580.095 0.087 0.2793.14 15.27 10.97 8.62鋅掃選1.310.8120.601.34 3.031.479.290.630.5547.185.81 -精選出6.343.9892.290.571.58 1.550.700.332.871.530.087 0.0830.2391.56 13.7210.277.090.7524.611.280.45 0.990.213.72尾礦5.353.7788.57 卄鋅精礦15.7

24、619.794.433.60 分離粗選97849&26725.715.563.461.39 61.62 10.441.62分離26.534.303.291.19 54.386.911.32精選分離9.5128.745.042.21 36.2285.823.759.4027.185072.48 掃選 140.2091.084.2320.9913.054.450.20 7.243.530.3017.5215.666.810.32 9.6719.496.770.73分離5.3314.730.27 -3.985.260.488.2028.88 4.812.16 30.5384.313.50掃選

25、n8.1530.954.751.8918.57 8.404.942.44 78.04 27.70 4.06 |銅精礦、10.9912.316.511.252.6267.371.3223.6620.792.740.64 '2.8958.260.28 !r26.5579.053.02圖3選礦中間試驗數質量流程鉛精礦Fig3 The flowsheet of qua ntity and quality of pilot test圖例：丫 (%)Q(kg/h) C(%)W(L/h)100.00 0.6160.0099.000.01100.00L=107.4160.00 .35.71L=14.9

26、0L=0.-18, n_"",L=4.14W:;補加水量：4608.07L/h混浮16.2916.29103.2961.9729.35149.162.41混浮.108.021.80產 L2.784.6414.295.143.1212.775.20 21.396.832.1932.593.64 4.532.07混浮混浮粗選-混浮L=0：80 .”-/L=677:*z f ； W/才59.19/ 30.50'98.65_一.一半34.87 /2.28?59.82 / 28.84 99.70 丄；弼爭247 掃選I 一 0.935.28羅'16.86_17942.

27、3819.263.96-亠 9.98 " 4.19精選n.3.40204 J22*527成 3.442.18 9/783.63 8環(huán) 4.05 精選皿J0.193.480.325.2727.741.9935.793.31 嶺卄 3.571.79精選W0.1412.110.23 1.027.291.8531.043.08 4.112.225.36).560.3411.502.967.711.049.98 /|_r36#1.73 / L_4.369.38 9.02 / / t /1.05 °.63 嚴75.95 /9.4L=7.09/ / /混浮60.67 /20.47 y101.11235.77，3層7/ /$鋅4.4633.5