發(fā)布時(shí)間：2018-05-05 04:33

  本文選題：離子型稀土礦 + 土壤有效孔徑��； 參考：《中國礦業(yè)》2016年10期

【摘要】：掌握離子型稀土礦體的孔隙結(jié)構(gòu)特征對(duì)于分析浸礦效率和開采周期具有重要意義。假設(shè)離子型稀土礦土壤孔徑服從對(duì)數(shù)正太分布,運(yùn)用毛細(xì)管模型建立溶液在土壤中穿透曲線的計(jì)算公式,提出土壤有效孔徑及其分布參數(shù)的測試方法,試驗(yàn)測試了贛南某離子型稀土礦體的原礦重塑樣和篩分樣重塑樣的有效孔徑。測試結(jié)果表明,當(dāng)?shù)V樣孔隙度為44.4%時(shí),相對(duì)于粒徑范圍0.075~0.09mm的篩分樣重塑樣,原礦重塑樣的平均有效孔徑和有效孔隙度大,分別為1.14倍和1.90倍,但兩者的孔徑分布參數(shù)基本相同。
[Abstract]:It is important to understand the pore structure characteristics of ion rare earth ore bodies for analyzing leaching efficiency and mining cycle. Assuming the distribution of soil pore size from logarithmic space in ion-type rare earth ore, the capillary model was used to establish the formula for calculating the penetration curve of solution in soil, and the measurement method of soil effective pore size and its distribution parameters was put forward. The effective pore size of the raw ore remolding sample and the screening sample remolding sample of an ionic rare earth orebody in south Jiangxi were tested. The test results show that when the porosity of the ore sample is 44.4, the average effective pore size and effective porosity of the remolded sample are 1.14 and 1.90 times, respectively, compared with the sample remolded by 0.075~0.09mm in the particle size range, but the pore size distribution parameters of the two samples are basically the same.
【作者單位】： 江西理工大學(xué)建筑與測繪工程學(xué)院;江西理工大學(xué)工程研究院;
【基金】：國家自然科學(xué)基金項(xiàng)目資助(編號(hào):51264008) 江西省自然科學(xué)基金項(xiàng)目資助(編號(hào):20151BAB206023) 江西省教育廳科技落地計(jì)劃項(xiàng)目資助(編號(hào):KJLD 14042)
【分類號(hào)】：S151.9
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本文編號(hào)：1846233