镁系废弃物作为型煤添加剂的实验研究  

STUDY ON MAGNESIUM SERIES WASTE USED AS ADDITIVES OF COAL BRIQUETTE

作　　者：路广军[1] 程芳琴[1] 赵天[1] 

机构地区：[1]山西大学资源与环境工程研究所,国家环境保护煤炭废弃物资源化高效利用技术重点实验室,太原讲师030006

出　　处：《煤炭转化》2013年第2期83-86,共4页Coal Conversion

基　　金：国家863计划项目(2012AA061602);山西省回国留学人员重点科研项目(2010001);国家国际合作项目(2011DFA90830);山西省科技基础条件平台建设项目(2011091012)

摘　　要：利用盐湖镁盐和金属镁渣分别作为型煤黏结剂和固硫剂,研究了盐湖镁盐和金属镁渣对型煤性能的影响.结果表明,盐湖镁盐作为型煤黏结剂可以显著提高型煤的强度和防水性能,随添加量的增加,强度逐渐提高,添加量为6%时,型煤的抗压强度达528N/ball,跌落强度可达86%;金属镁渣可以提高型煤的固硫率,随着添加量的增加,固硫率不断提高,降低了型煤在燃烧过程中释放的SO2排放浓度,添加量为6%时,型煤固硫率为74%,SO2最高排放浓度是751mg/m3.Magnesium salt and magnesium smelting slag were used as binder sulfur retention agent of coal briquette, compressive strength, falling strength, agent and redrying strength, and sulfur retention efficiency of coal briquette were tested. Results showed that mag- nesium salt could significantly improve strength of coal briquette, when mass ratio was 6 %, the compressive strength was 528 N/ball, falling strength was 86 %. Magnesium smelting slag could improve sulfur retention efficiency, when mass ratio was 6G, sulfur retention efficiency was 74%, the highest density of SO2 was 751 mg/m3.

关 键 词：镁盐 镁渣 固硫率 

分 类 号：TQ536[化学工程—煤化学工程] X75[环境科学与工程—环境工程]