亚硫酸钙型脱硫石膏生产高强环保型粉刷石膏的研究  

Study on Calcium Sulfite Flue-gas Gypsum Producing High Strength Environmental Painted Gypsum

作　　者：冯启彪 

机构地区：[1]甘肃省建材科研设计院,兰州730020

出　　处：《混凝土与水泥制品》2013年第2期57-59,共3页China Concrete and Cement Products

基　　金：甘肃省科技支撑计划项目(090GKCA023);甘肃省住房和城乡建设厅建设科技计划项目(JK2011-8)

摘　　要：通过对半干法脱硫产生的亚硫酸钙型脱硫石膏的材性研究表明,其主要矿物成份是亚硫酸钙,另有少量的硫酸钙。亚硫酸钙在氧化气氛条件下经焙烧处理可氧化成为硫酸钙,即Ⅱ型无水石膏。Ⅱ型无水石膏经强度激发,凝结时间和保水性能改性处理之后,可以配置强度高、凝结时间任意可调、且初终凝时差长的高性能粉刷石膏。Based on the research of the performance of calcium sulfite flue-gas gypsum which produced by semi-dry flue gas desulphurization, it is shown that the main mineral composition is calcium sulfite, as well as a small amount of calcium sulfate. After roasting, the calcium sulfite can become calcium sulfate in oxidizing atmosphere condition, namely Ⅱ type anhydrite. Through the treatment of strength excitation and modification of setting time and water retention, Ⅱ type anhydrite can be configured to high performance painted gypsum with high strength, adjustable setting time and long initial and final setting time.

关 键 词：半干法脱硫工艺 亚硫酸钙型脱硫石膏 焙烧氧化 强度激发 粉刷石膏 

分 类 号：TQ177.3[化学工程—硅酸盐工业]