井矿盐卤水中硫酸钙颗粒沉降过程研究

发布时间：2018-02-28 19:01

本文关键词： 氨碱废液硫酸钙井矿盐　出处：《无机盐工业》2017年05期 　论文类型：期刊论文

【摘要】：测定了硫酸钙颗粒在不同颗粒浓度和卤水浓度中沉降高度与时间的关系,测量的实际值与理论值做了对比,并分析了硫酸钙颗粒浓度和卤水浓度对硫酸钙颗粒沉降速率的影响。结果表明:沉降速率随硫酸钙颗粒浓度和卤水浓度的增加而减小;实验中的实际值远远小于理论值;硫酸钙颗粒浓度从5%(体积分数,下同)增至20%时,介质浓度高的沉降速率下降快;卤水浓度升高时,颗粒浓度高的沉降速率下降快。在纯水中,硫酸钙颗粒浓度为5%时,硫酸钙的沉降速率为19.1 mm/min。在卤水质量浓度为360 g/L、硫酸钙颗粒浓度为20%时,硫酸钙颗粒的沉降速度仅为0.33 mm/min。
[Abstract]:The relationship between settling height and time of calcium sulfate particles in different particle concentration and brine concentration was measured, and the actual value was compared with the theoretical value. The effects of calcium sulfate particle concentration and brine concentration on the sedimentation rate of calcium sulfate particles are analyzed. The results show that the sedimentation rate decreases with the increase of calcium sulfate particle concentration and brine concentration, and the actual value in the experiment is much smaller than the theoretical value. When the particle concentration of calcium sulfate increased from 5 to 20, the settling rate with high medium concentration decreased rapidly, and the settling rate with high particle concentration decreased rapidly when the concentration of brine increased. In pure water, the concentration of calcium sulfate particles was 5. The settling rate of calcium sulfate is 19.1 mm / min. When the mass concentration of brine is 360 g / L and the concentration of calcium sulfate particle is 20, the settling rate of calcium sulfate particle is only 0.33 mm / min.
【作者单位】：天津科技大学化工与材料学院;天津科技大学海洋资源与化学重点实验室;
【基金】：国家海洋局海洋公益性行业科研专项(201405008-1) 天津市海洋经济创新发展区域示范项目(cxsf2014-26) 科技重大专项与工程(15ZXCXSF00040)教育部科研创新团队培育计划([2013]373) 天津市高等学校创新团队培养计划(TD12-5004)
【分类号】：TQ132.32

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