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Trans. Nonferrous Met. Soc. China 22(2012) 1794-1800 Occurrence of lead and silver minerals and their interaction with xanthate in slurry of zinc electrolysis anode slime XIANG Ping1,2, FENG... gradient magnetic separator to realize the sorting of anglesite from Mn(IV) mineral. The aims of this work are to investigate the pulp potential of the zinc electrolysis anode slime slurry in acid solution......
s-1,然后在200 s内由100 s-1均匀降低至0,每组实验过程共计400 s,其剪切速率与时间关系如图4所示. 表1 充填料浆剪切触变实验方案 Table 1 Experimental scheme of shear thixotropy of filling slurry 图4 浆料的剪切速率与时间关系 Fig. 4 Relationship between shear rate and time of slurry 2 结果与讨论 2.1 触变形态分析 实验结束后,运用Origin绘制剪切应力-剪切速率关系曲线图,并计算触变环封闭区域面积,用Athix表示,其中,上行曲线与下行曲线出现多于两个交点时,计算各部分封闭区域面积并求和,计算结果见 图5.从图5(a)和(b)中可看出,料浆质......
properties of paste slurry and influence factors based on pipe loop test WANG Shaoyong, WU Aixiang, RUAN Zhuen, CHEN Shunman (Key Laboratory of High-Efficient Mining and Safety of Metal, Ministry of Education,University of Science and Technology Beijing, Beijing 100083, China) Abstract: To study the rheological properties of paste slurry and influence factors, the mini pipe loop experiment platform......
陷；搅拌棒旋转时产生表面湍流而产生卷入性缺陷.例如RSF,除具有SSR的特点外,金属块表面因氧化而生有一定厚度的氧化皮,金属块在合金熔体内部熔化的过程中将该氧化皮引入合金熔体. 表1 国内外最具影响力的半固态浆料制备方法 Table 1 International influential semi-solid slurry preparation methods 图1 A356铝合金半固态浆料内卷入性缺陷的微观尺度形貌 Fig. 1 Entrainment defects at microstructure scale in semi-solid slurry of A356 aluminum alloy 以SEED为代表的分类Ⅱ.合金熔体被注入浆料制备坩埚过程中,合金熔体因浇注操作冲刷坩埚内壁产生紊流而产生卷入性缺陷. 分类Ⅲ.除具有......
to be reliable by the residual monitor plotting of related parameter, so it can be concluded that the system of pipe transportation is safe. Key words: backfilling; deep mine; paste-like slurry; pipe...]. However, the researches on the features of pipe transportation in deep mines are rare. Flow velocity and rheological behavior of pipeline transportation filling slurry were forecast by mathematic methods......
Dexin, GAO Qian, et al. Key technologies in long-distance pipeline transportation of filling slurry of coarse aggregate[J]. Journal of Guangxi University(Natural Science Edition), 2016, 41(4): 1306-1312. [6] 李炜, 周旭. 高浓度胶结充填料浆管道输送离析成因分析[J]. 金属矿山, 2011(增刊): 180-182. LI Wei, ZHOU Xu. Cause analysis of separation in pipeline transportation of high concentration cemented filling slurry[J]. Metal Mine......
about Dongshan 表2 浆体管输模拟方案 Table 2 Simulation scheme of slurry pipeline transportation 通过模拟分析,既可以比较不同配比下的料浆管输阻力,又可以对比同种料浆在不同速度下的管输阻力. 2.4 模型设置 根据实验方案在FLUENT软件中进行设置,管道入口设置为速度入口...200 kg/m3时不同速度下料浆管道阻力损失 Table 3 Slurry pipeline resistance loss under different velocities with 200 kg/m3 in cement content 3.2 质量浓度对阻力的影响 根据模拟结果将不同质量浓度下造成的阻力损失绘制成图(见图5),显示阻力损失随质量浓度的变化情况......
; Schematic diagrams of internal structure changes of slurry 由图6可得,当砂浆受到恒定切应力作用后,由于APAM高分子的"桥连"作用,需要更大的初始力才能克服颗粒间的摩擦力使砂浆流动,初始屈服应力和初始表观黏度比不添加APAM的砂浆大(见图6(a))；在恒定切应力的作用过程中,摩擦力的存在使砂浆存在一定的流速梯度,当絮团处于流速梯度中时... Hua-zhe, LIU Si-zhong, WANG Shao-yong. Experimental studies on the thixotropic characteristics of unclassified-tailings paste slurry[J]. Journal of Wuhan University of Technology (Transportation......
分类号:TD853 文献标志码:A 文章编号:1672-7207(2020)01-0176-08 Characterization of coarse aggregate filling slurry based on vertical distribution of mass... of diffusion theory, the theoretical formula of filling slurry mass fraction distribution was derived by analyzing the force of solid particles in filling slurry and combining with the probability......
and parameters optimization of preparation of AZ91D magnesium alloy semi-solid slurry by damper cooling tube method YANG Hao-qiang, XIE Shui-sheng, LI Lei, HUANG Guo-jie (State Key Laboratory for Fabrication and Processing of Non-ferrous Metals, Beijing General Research Institute for Non-ferrous Metals, Beijing 100088, China) Abstract: A new damper cooling tube method used to prepare semi-solid slurry......
