新型含镁渣环保脱硫剂的制备及其性能测试  

PREPARATION AND PERFORMANCE TEST OF NEW ENVIRONMENT-FRIENDLY DESULFURIZER CONTAINING MAGNESIUM SLAG

作　　者：肖勇强 高亚萍[1] 杨洋 吴松恒[3] XIAO Yong-qiang;GAO Ya-ping;YANG Yang;WU Song-heng(Department of Physical Education,Xi'an University of Architecture and Technology,Xi'an 710055,China;Research Center of Ventilation Technology,Xi'an University of Architecture and Technology,Xi'an 710055,China;School of Environmental and Municipal Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China)

机构地区：[1]西安建筑科技大学体育学院体育建筑教研室,西安710055 [2]西安建筑科技大学通风技术研究中心,西安710055 [3]西安建筑科技大学环境与市政工程学院,西安710055

出　　处：《环境工程》2018年第11期133-136,共4页Environmental Engineering

基　　金：国家自然科学基金青年项目(51508445);陕西省自然科学基础研究基金面上项目(2017JM5143)

摘　　要：为降低脱硫剂生产成本,提高资源综合利用率,对皮江法冶镁工艺过程中产生的镁渣固体废弃物的成分、水溶液pH值、粒径分布以及中和性能进行分析,提出了基于镁渣固体废物混比的新型脱硫剂制备方法。废料成分分析实验证明:冶镁工艺除尘器和还原炉中的废料成分能与亚硫酸进行反应,满足脱硫剂的基本要求。粒径测试发现,废料粒径在40μm以下的成分含量接近90%,粒径分布峰值在20μm以上,40μm以上仍有大量颗粒存在,研磨、风采等手段是提高脱硫反应效率的重要措施。通过两种废料不同配比的水溶液pH值分析,提出除尘器废料与还原炉废料配比为7∶40可满足脱硫剂要求,并通过滴定实验和工程应用验证了其消耗亚硫酸的能力。In this paper,various performance of magnesium slag generated by production of magnesiiam through Pidgeon process,i.e.,composition,aqueous solution pH,size distribution and neutralizing,performance were investigated, respectively,so as to reduce the production cost of desulfurizer and improve comprehensive utilization ratios of resources. Then,one new method based on blending ratio of magnesium slag was proposed to prepare desulfurizer.The composition analysis results showed that wastes from dust remover and reduction furnace for magnesium making could react with sulphurous acid,which met one basic requirements of desulfurizer's property.Additionally ,size distribution measurement displayed numbers of particles with diameters less titan 40μm aceounted for nearly 90%and peaks of size distribution appeared 20μm above.Moreover,many particles with diameters greater than 40μm could also be found.Grifiding and other 'measurements were important to enhance desulfurization reaction efficiency.By referring to aqueous solution pH with different proportion of wastes,it could be obtained that when proportion wastes from dust remover and reduction furnace reached 7:40,requirements of desulfurizer could be met.Its purification ability of sulphurous acid was proved by titration experiment and engineering application.

关 键 词：皮江法 还原渣 湿法脱硫 脱硫剂 

分 类 号：X701.3[环境科学与工程—环境工程]