共查询到20条相似文献,搜索用时 31 毫秒
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随着选煤技术的发展,煤泥脱水环节变得越发重要,针对厂区煤泥产品水分过高,滤液细小颗粒过多的问题;采用现场压滤机入料,通过改变助滤剂的种类、用量进行压滤试验;试验结果说明最佳药剂制度为:添加有机型阴离子助滤剂,用量为25 g/t,能够使滤饼水分降低为21.58%,滤透射比达到92.13%;因此本文的研究内容对选煤厂现场压滤系统的药剂制度改善提供试验基础。 相似文献
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为提高煤泥产品的脱水率、降低含水量,减少煤泥带来的环境污染以及水分导致的热能损耗,通过实验室抽滤试验及扫描电镜图像表征,研究不同种类无机盐类助滤剂对煤泥水的脱水效果,并进行了试验分析。试验结果表明,无机盐类助滤剂的加入能够有效提高煤泥过滤效率,煤泥水分脱除效果显著;其中聚氯化铝对提升过滤速度的效果最好,在助滤剂添加量为900 g/m3时,煤泥脱水时间比原方案减少8.43 min,煤泥含水率减少5.14%。工业试验进一步验证了聚氯化铝对提升煤泥过滤速度的效果,并且发现在复配聚丙烯酰胺絮凝剂的共同作用下,压滤效率更高,滤饼水分更低。 相似文献
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针对河南某铝土矿浮选尾矿絮凝沉降后的底流压滤脱水效果不理想问题,以表面活性剂型药剂为助滤剂,在实验室对该底流矿浆进行了助滤脱水试验,并考察了滤液中残留的助滤剂TLT8840对铝土矿浮选的影响。试验结果表明:TLT8840的助滤效果优于TLT8850;用循环水配制TLT8840不会影响药效;在底流矿浆中添加200 g/t(按干尾矿计)助滤剂TLT8840,可缩短尾矿成饼时间21.43%,降低滤饼水分0.37个百分点;滤液中残余的TLT8840通过循环水进入铝土矿的浮选作业,可小幅提高精矿Al2O3品位和铝硅比,对精矿Al2O3回收率的影响甚微。可见,TLT8840对絮凝沉降底流的压滤具有显著的降本增效效果。 相似文献
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Journal of Mining Science - 相似文献
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S. A. Khristianovich 《Journal of Mining Science》1991,27(1):1-15
Institute of Mechanics, Academy of Sciences of the USSR, Moscow. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki
Poleznykh Iskopaemykh, No. 1, pp. 3–18, January–February. 相似文献
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Kuznetsk Polytechnical Institute, Kemerovo. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh,
Vol. 26, No. 6, pp. 95–98, November–December, 1990. 相似文献
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The data on arsenic removal from water sources down to the residual concentration below 10 μg/l are reported. The basic physico-chemical
parameters are set for arsenic removal by polystyrene modified by polymer polyHIPE granules, calcium alginate granules saturated
(coated) with iron hydroxide. Adsorption filtration is an efficient method of arsenic removal.
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Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 2, pp. 114–123, March–April, 2007. 相似文献
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A. M. Svalov 《Journal of Mining Science》1989,25(1):56-60
All-Union Scientific-Research Institute of Drilling Equipment, Moscow. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki
Poleznykh Iskopaemykh, No. 1, pp. 67–73, January–February, 1989. 相似文献
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《Minerals Engineering》2003,16(2):165-173
Twenty years ago, automatic pressure filters were a novelty in the minerals and metallurgical industries. Many plants used a combination of vacuum filters and thermal dryers. Today, almost every new flotation plant installs pressure filters to dewater concentrate. Many existing concentrators and metallurgical plants have replaced or are replacing their vacuum filters by pressure filters.This paper examines the reasons for the widespread adoption of automatic pressure filters. Reference is made to Larox filter installations, and their operating principles are described. Guidelines for filter selection and testwork are reviewed, and factors to be taken into account when designing a pressure filtration plant are explained. 相似文献