高压水射流粉碎技术制备水煤浆超细煤粉  

High pressure water jet comminution technology prepared ultrafine pulverized coal of coal water slurry

作　　者：宫伟力[1,2] 谢天[2] 赵世娇 赵运天 王泽龙[2] 吕民东 

机构地区：[1]中国矿业大学(北京)深部岩土力学与地下工程国家重点实验室,北京100083 [2]中国矿业大学(北京)力学与建筑工程学院,北京100083 [3]中国矿业大学(北京)机电与信息工程学院,北京100083

出　　处：《煤炭科学技术》2016年第1期210-215,171,共7页Coal Science and Technology

基　　金：大学生科研创新训练团队资助项目(201411413055)

摘　　要：为降低制备水煤浆超细煤粉时的能耗,采用高压水射流粉碎工艺和传统球磨机粉碎工艺对煤样进行粉碎,通过控制磨煤时间,在保证2种工艺制备的煤样粒度基本相同的基础上,对获得的超细煤粉所需能耗进行了分析。结果表明,高压水射流粉碎技术不但达到了制备超细煤粉的粒度要求,且其能耗仅为传统球磨粉碎能耗的1/10~1/6;获得的超细煤粉颗粒表面光洁、无杂质粘附,且颗粒之间无连接,有利于分选,并具有高的成浆率和堆积效率。In order to reduce energy consumption during preparing ultrafine pulverized coal of coal water slurry,the high pressure water jet comminution technique and the traditional ball mill grinding technique were adopted to crush coal samples,by controlling the grinding time,based on ensuring the same coal particle size,the paper analyzed their required energy consumption. The results showed that high pressure water jet comminution technology not only met the requirements of the preparation of ultrafine pulverized coal particle size,and its energy consumption was only 1 /10 ~ 1 /6 of traditional ball mill grinding energy consumption. The acquired ultrafine pulverized coal particles with high pressure water jet comminution technology had smooth surface,no impurities adhesion,no connection between particles,which was beneficial to separation,and with high rate of water slurry and accumulation efficiency.

关 键 词：高压水射流 超细煤粉 水煤浆 煤粉粉碎 

分 类 号：TQ536[化学工程—煤化学工程]