直径间隙法制水煤浆级配技术研究  

GRADATION RESEARCH ON COAL WATER SLURRY BY USING DIAMETER VOID PACKING MODEL

作　　者：李和平[1] 金琼[1] 陈小燕[1] 胡奇林[1] 刘万毅[1] 

机构地区：[1]宁夏大学化学化工学院,银川讲师750021

出　　处：《煤炭转化》2011年第4期25-28,共4页Coal Conversion

基　　金：宁夏自然科学基金资助项目(NZ1021);教育部大学生创新实验项目(091074917)

摘　　要：采用双珠级配与三珠级配模型,探讨了球料比、研磨时间、温度、入料尺寸和研磨速度对灵武煤制水煤浆成浆性的影响,分别采用干法配浆与湿法配浆的方法进行实验,利用DV-1+PRO数字式黏度计和Rise-2008型激光粒度分析仪对配置浆料的黏度和粒度进行测试.结果表明,当入料尺寸<1mm,球料比为6∶1,研磨速度为72r/min时,水煤浆的浓度可以达到68%.10#自制添加剂的使用可以获得性能稳定的水煤浆浆体.In this experiment the model of double balls gradation,three balls gradation and four balls gradation be used.The effects of slurry ability on factors of ball milling ratio,ball milling time,pretreatment temperature,rotation speed,cylinder size and types of additives be investigated.The dry coal particle gradation and water coal particle gradation method be operated.The viscosity and size distribution are analyzed by using DV-1＋PRO digital viscosity indicator and Rise-2008 laser particle size analyzer respectively.Additionally,the stability of slurry be testified.The results show that the concentration of coal water slurry is up to 68% during the processing condition of raw materials size is smaller than 1 mm,ball milling ratio is 6∶1,rotation speed is 72 r/min.At the same time,mixing with No.10# additive can get stable coal water slurry.

关 键 词：水煤浆 浓度 级配 成浆性 粒度 黏度 

分 类 号：TQ517.4[化学工程]