入口压力与浆液浓度对石膏旋流器分离特性影响的研究  

Study of the Influence of the Inlet Pressure and Slurry Concentration on the Separation Characteristics of a Gypsum Cyclone

作　　者：沈国清[1] 李志强[1] 安连锁[1] 范鹏[1] 

机构地区：[1]华北电力大学国家火力发电工程技术研究中心,北京102206

出　　处：《热能动力工程》2015年第6期892-896,972,共5页Journal of Engineering for Thermal Energy and Power

基　　金：华北电力大学中央高校基本科研业务费专项资金项目(2014MS10);北京高等学校青年英才计划(YETP0700)

摘　　要：石膏旋流器作为火电厂石灰石湿法烟气脱硫系统中回收石膏的一个核心部件,其分离特性越来越受到关注。本研究采用实验的方法,对已有石膏脱水系统进行研究,得到了入口压力与浆液浓度对石膏旋流器分离性能的影响,结果表明:一定范围内,随着入口压力的逐渐增大,其生产能力、分级及分离效率等均逐渐提高;随着浆液浓度的增大,其分离效率与底流质量浓度也将增大;综合考虑,当入口压力为0.03 MPa、石膏浆液浓度为19.7%时,石膏旋流器的体积流量较高,分级、分离效率最好。With a gypsum cyclone serving as a core equipment item in a limestone wet-method flue gas desulfurization system in a thermal power plant,the separation characteristics of the gypsum cyclone have gained increasingly high attention. By using a test method,the authors have conducted a study of an existing gypsum dewatering system with the influence of the inlet pressure and slurry concentration on the separation performance of the gypsum cyclone being obtained. It has been found that in a certain range,with an increase of the inlet pressure step by step,all the production capacity,separation and classification efficiency of the cyclone will gradually increase. With an increase of the slurry concentration,the separation efficiency and the underflow mass concentration will also increase. When the inlet pressure is 0. 030 MPa and the gypsum slurry concentration is 19. 7%,the volumetric flow rate of the gypsum cyclone is relatively high and both separation and classification efficiency of the gypsum cyclone are highest.

关 键 词：入口压力 浆液浓度 生产能力 分离效率 分级效率 石膏旋流器 

分 类 号：X701.3[环境科学与工程—环境工程]