大型蒸汽动能磨制备超细固硫灰的工艺  

Process of Ultrafine Circulating Fluidized Bed Ashes Prepared by Large Steam Jet Mill

作　　者：王沁淘 陈海焱[1] 胥海伦[2] 赖小林[3] 石岩[1] 

机构地区：[1]西南科技大学环境与资源学院,四川绵阳621010 [2]西南科技大学土木工程与建筑学院,四川绵阳621010 [3]西南科技大学制造科学与工程学院,四川绵阳621010

出　　处：《中国粉体技术》2014年第5期71-73,80,共4页China Powder Science and Technology

基　　金：国家科技支撑计划项目;编号:2011BAA04B04;四川省科技厅科技项目;编号:11ZS2006;四川省教育厅基金项目;编号:11ZB193

摘　　要：利用电厂温度为250℃、入口压力为0.25 MPa的过热蒸汽,采用LNSJ-350A型蒸汽动能磨对固硫灰渣进行超细加工。结果表明,制得的超细固硫灰平均粒径为4.42μm,产量为10.8 t/h,加工每吨固硫灰消耗蒸汽0.93 t,电耗为19.97 kW·h;以质量分数为10%的超细固硫灰为掺合料制备强度等级为32.5的复合硅酸盐水泥,其强度和安定性均符合国家的标准要求。Using superheated steam with temperature of 250 ℃ and inlet pressure of 0.25 MPa supplied by a power plant, ultrafine circulating fluidized bed ashes were prepared by LNSJ-350A type steam jet mill. The results show that the average particle size of the ultrafine circulating fluidized bed ashes is 4.42 μm. The yield of ultrafine circulating fluidized bed ashes is 10.8 t/h. 0.93 t steam is consumed and the electricity consumption is 19.97 kW-h per ton of circulating fluidized bed ashes. The strength and soundness conform to national standard requirements when the products are blended by a mass fraction of 10% for preparing composite Portland cement with the strength grade of 32.5.

关 键 词：过热蒸汽 蒸汽动能磨 超细固硫灰 

分 类 号：TK09[动力工程及工程热物理]