一种“安全环保自动化”重矿物前处理新方法
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摘要
为了提高重矿物分离质量及效率,改善实验人员的工作环境,采用一种"环保自动化"重矿物前处理新方法,利用中、高速螺旋桨机械转子对泥沙样品的快速抽打使泥沙松动、分散,再通过超声波震荡使泥沙分离,同时借助水循环将分离出的泥质除去。新方法将处理2块样品的时间由800 min降至140min,较传统手工,重矿物分离效率提高了5倍,且解决了其轻矿物杂质含量高的弊端。此外,新方法采用凝固点相对较低且无毒的无机重液多钨酸钠(密度2.9g/cm3)来代替凝固点较高且毒性较大的三溴甲烷等重液(密度2.92g/cm3),提高了实验室环境质量,攻克了冬季因三溴甲烷凝固而无法作业的难题。
In order to improve the quality and efficiency of heavy mineral separation,and improve the working environment of laboratory workers,a novel method of heavy minerals pretreatment was adopted,which using quick rotor of medium and high speed propeller mechanical rotor to make sand and sand loose and disperse,then separating mud sand by ultrasonic wave concussion,finally obtain heavy minerals by removal of the separated mud with water cycle at the same time.The way reduces the process time of 2 samples from 800 minutes to 140 minutes,which is 5 times higher than that of traditional manual heavy mineral separation,and solves the problem of high impurity content in light minerals.In addition,the new method uses a relatively low solidification point and non-toxic inorganic heavy liquid sodium tungstate(density 2.9 g/cm3)to replace the high and toxic tribromomethane equal heavy liquid(density 2.92 g/cm3),which improves the quality of the laboratory environment and solves the difficult problem of the freezing of tribromomethane in winter.
In order to improve the quality and efficiency of heavy mineral separation,and improve the working environment of laboratory workers,a novel method of heavy minerals pretreatment was adopted,which using quick rotor of medium and high speed propeller mechanical rotor to make sand and sand loose and disperse,then separating mud sand by ultrasonic wave concussion,finally obtain heavy minerals by removal of the separated mud with water cycle at the same time.The way reduces the process time of 2 samples from 800 minutes to 140 minutes,which is 5 times higher than that of traditional manual heavy mineral separation,and solves the problem of high impurity content in light minerals.In addition,the new method uses a relatively low solidification point and non-toxic inorganic heavy liquid sodium tungstate(density 2.9 g/cm3)to replace the high and toxic tribromomethane equal heavy liquid(density 2.92 g/cm3),which improves the quality of the laboratory environment and solves the difficult problem of the freezing of tribromomethane in winter.
引文
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[2]沈丽琪.沉积岩重矿物研究中的几个重要概念及其应用[J].中国科学(B辑),1985(1):70-78.
[3]周建文,宋丽红,孙峥嵘,等.博湖坳陷侏罗系重矿物特征及物源探讨[J].河南石油,2002,16(1):20-22.
[4]张元,郭翔,刘宏彦,等.三塘湖盆地马朗地区重矿物特征及物源分析[J].中外能源,2007,12(4):48-51.
[5]方世虎,郭召杰,贾承造,等.准噶尔盆地南缘中—新生界沉积物重矿物分析与盆山格局演化[J].地质科学,2006,41(4):648-662.
[6]丁跃潮.微量元素及重矿物判别分析在西昆仑山前第三系划分对比中的应用[J].新疆地质,1995,13(3):275-282.
[7]武法东,陆永潮,阮小燕.重矿物聚类分析在物源分析及地层对比中的应用——以东海陆架盆地西湖凹陷平湖地区为例[J].现代地质,1996,10(3):397-402.
[8]郭松伟,高霞,张克鑫,等.加拿大巴肯组“致密油”测井解释方法[J].非常规油气,2014,1(1):22-26.
[9]和钟铧,刘招君,张峰.重矿物在盆地分析中的应用研究进展[J].地质科技情报,2001,20(4):29-32.
[10]赵军,洪庆玉,董伟良.北部湾涠西南凹陷物源方向及古地理景观分析[J].石油勘探与开发,2001,28(5):25-28.
[11]刘阵,张洪美,何金有,等.库鲁克塔格南部山前带中—新生代构造演化史——来自磷灰石裂变径迹的证据[J].非常规油气,2016,3(4):12-20.
[12]段体玉,王时麟.多钨酸钠超声高速离心法——分离提纯微细矿物的新方法[J].地质与勘探,2001,9(5):38-40.