本文選題：重選 + 尼爾森��； 參考：《有色金屬(選礦部分)》2017年02期

【摘要】：介紹了四方金礦的礦石性質(zhì)、尼爾森選礦機在四方金礦的應(yīng)用情況。針對原重選工藝流程中存在的金重選回收率低、濃密金品位波動幅度大、一段球磨機負(fù)荷大等問題進(jìn)行了分析。進(jìn)行了重選工藝流程試驗,對試驗結(jié)果進(jìn)行了分析與討論,確定了最優(yōu)重選工藝流程,并用于生產(chǎn)實踐。應(yīng)用后,金重選回收率提高至47%,處理礦量提高131 t/d,平均尾渣和尾液金品位分別降低了0.006 g/t和0.002 g/m3,選冶回收率提高了0.84%,減少了氰化鈉消耗和電解開機塔數(shù),節(jié)省了材料消耗,降低了濃密機底流金品位及其波動幅度,優(yōu)化了生產(chǎn)工藝。每年綜合經(jīng)濟效益975萬元。
[Abstract]:The ore properties of Sifang Gold Mine and the application of Nielsen concentrator in Sifang Gold Mine are introduced. The problems such as low recovery rate of gold reconcentration, wide fluctuation of gold grade and heavy load of the first stage ball mill in the original gravity separation process were analyzed. The test of gravity separation process was carried out, the test results were analyzed and discussed, the optimum gravity separation process was determined and used in production practice. After application, the recovery rate of gold reconcentration increased to 47, the amount of ore treated increased by 131t / d, the average grade of tailings and the gold grade of tail-liquid decreased by 0.006 g / t and 0.002 g / m ~ 3, respectively, and the recovery rate of dressing and smelting increased by 0.844%, which reduced the consumption of sodium cyanide and the number of electrolytic turn-on towers, and saved the consumption of materials. The bottom flow gold grade and its fluctuation range of thickener are reduced, and the production process is optimized. The comprehensive economic benefit is 9.75 million yuan per year.
【作者單位】： 陜西鳳縣四方金礦有限責(zé)任公司;
【分類號】：TD922

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