本文選題：全尾砂 + 絮凝沉降��； 參考：《礦業(yè)研究與開發(fā)》2017年03期

【摘要】：充填料漿制備是充填采礦過程中的重要組成部分,全尾砂絮凝沉降是料漿制備的關(guān)鍵技術(shù)。為探討某鐵礦山全尾砂絮凝沉降規(guī)律,采用正交試驗法以尾砂漿入料濃度、絮凝劑單耗、絮凝劑溶液濃度和聚丙烯酰胺分子量為自變量,以沉降速度、極限濃度和上清液含固率為考察指標(biāo)開展全尾砂絮凝沉降實驗。對實驗數(shù)據(jù)進(jìn)行極差分析,結(jié)果表明:絮凝劑單耗和尾砂漿入料濃度是影響全尾砂絮凝沉降效果的主要因素,聚丙烯酰胺分子量和絮凝劑溶液濃度為次要因素;沉降速度與聚丙烯酰胺分子量和絮凝劑單耗正相關(guān),與尾砂漿入料濃度負(fù)相關(guān),極限濃度與尾砂漿入料濃度和聚丙烯酰胺分子量正相關(guān),上清液含固率與尾砂漿入料濃度和絮凝劑溶液濃度正相關(guān);本次實驗范圍內(nèi)最佳絮凝劑單耗為20g/t,最佳尾砂漿入料濃度為15%,聚丙烯酰胺最佳分子量為1800萬,絮凝劑溶液濃度最佳為0.4%。
[Abstract]:The preparation of filling slurry is an important part in the process of filling mining, and the flocculation settlement of whole tailings is the key technology of slurry preparation. In order to probe into the flocculation settlement law of the whole tailings of a certain iron mine, the orthogonal test method was used to take the concentration of the tail-mortar, the unit consumption of the flocculant, the concentration of the flocculant solution and the molecular weight of polyacrylamide as independent variables and the settling speed as the independent variables. Limit concentration and solid content of supernatant were investigated. The results show that the unit consumption of flocculant and the concentration of tailings mortar are the main factors affecting the flocculation settlement of the whole tailings, and the molecular weight of polyacrylamide and the concentration of flocculant solution are the secondary factors. The settling velocity was positively correlated with the molecular weight of polyacrylamide and the unit consumption of flocculant, negatively with the concentration of tail mortar, and positively with the concentration of tail mortar and the molecular weight of polyacrylamide. The solid content of supernatant was positively correlated with the concentration of tail-mortar and the concentration of flocculant solution, the optimum consumption of flocculant was 20g / t, the optimum concentration of tail-mortar was 15g, the optimum molecular weight of polyacrylamide was 18 million, The best concentration of flocculant solution is 0.4.
【作者單位】： 華北理工大學(xué)礦業(yè)工程學(xué)院;河北省礦業(yè)開發(fā)與安全技術(shù)實驗室;華北理工大學(xué);
【基金】：華北理工大學(xué)大學(xué)生創(chuàng)新訓(xùn)練項目(X2015087) 河北省自然科學(xué)基金項目(E2016209220)
【分類號】：TD853.34

【參考文獻(xiàn)】

相關(guān)期刊論文 前9條

1 張欽禮;劉奇;趙建文;;全尾砂絮凝沉降參數(shù)預(yù)測模型研究[J];東北大學(xué)學(xué)報(自然科學(xué)版);2016年06期

2 王新民;趙建文;;全尾砂漿最佳絮凝沉降參數(shù)[J];中南大學(xué)學(xué)報(自然科學(xué)版);2016年05期

3 彭乃兵;吳愛祥;王洪江;孫偉;陳輝;;全尾砂絮凝沉降工藝研究[J];礦業(yè)研究與開發(fā);2015年07期

4 李宗楠;郭利杰;許文遠(yuǎn);史采星;;極細(xì)粒級尾砂絮凝沉降規(guī)律試驗研究[J];中國礦業(yè);2014年S2期

5 王新民;劉吉祥;陳秋松;肖崇春;萬孝衡;;超細(xì)全尾砂絮凝沉降參數(shù)優(yōu)化模型[J];科技導(dǎo)報;2014年17期

6 王建軍;許文遠(yuǎn);郭利杰;;全尾砂絮凝沉降規(guī)律研究[J];中國礦業(yè);2012年06期

7 王勇;王洪江;吳愛祥;李輝;劉洪鈞;谷志君;;細(xì)粒全尾礦絮凝沉降特性研究[J];黃金;2012年01期

8 焦華U，

本文編號：2056294