超细固硫灰的制备与性能分析  

Preparation and performance analysis of ultrafine desulphurization ash

作　　者：李鹏 武建芳 吴璟菲 石龙龙 程芳琴 

机构地区：[1]山西平朔煤矸石发电有限责任公司,山西朔州036800 [2]朔州市巨光建材开发有限公司,山西朔州036800 [3]煤电污染物控制与资源化利用山西省重点实验室,山西朔州036800

出　　处：《洁净煤技术》2016年第4期6-10,共5页Clean Coal Technology

基　　金：2014年度山西省煤基重点科技攻关资助项目(MC2014-04)

摘　　要：为改善固硫灰性能,用蒸汽动能磨对其进行超细粉碎,并通过对比分析超细固硫灰和原灰的性能,初步探索了超细固硫灰的应用方向。分析发现,采用蒸汽动能磨制备的超细固硫灰,其粒径可调控,粒径分布范围窄,颗粒分散程度高,比表面积增大。与采用固硫灰原灰制备的胶砂相比,采用中位径为3.7μm的超细固硫灰制备的胶砂,需水量比降低至95%,28 d活性指数提高至101%。超细固硫灰因其性能优异,故可作为水泥混合材和混凝土掺和料应用于建材领域中,但其利用率及利用途径有待进一步研究,以期加大固硫灰消纳力度,提高固硫灰附加值。To improve the performance of desulfurization ash,the ultrafine ash was prepared by kinetic energy mill with steam.The applied direction of ultrafine desulfurization ash was preliminary explored through analyzing the performance of ultrafine desulfurization ash and original ash.The results showed that the grain size of the ultrafine desulphurization ash which was prepared by kinetic energy mill with steam could be controlled.Thedispersion degree of particle of the ultrafine ash with narrow grain size distribution was high and the specific surface area was larger.Compared to the cement mortar withoriginal ash,the water ratio of cement mortar with ultrafine desulfurization ash which median diameter was 3. 7 μm was reduced to 95% and 28 days activity index increased to 101%. The ultrafine desulfurization ash could applied to the field of building materials as cement admixture and concrete admixture due to its excellent performance.In order to enhance the utilization level and added value of desulfurization ash,the utilization and utilization way of ultrafine desulphurization need further study.

关 键 词：循环流化床 固硫灰 超细固硫灰 蒸汽动能磨 

分 类 号：TU528.2[建筑科学—建筑技术科学]