掺加热水解污泥制备水泥熟料的微观机理研究
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摘要
掺加不同比例污泥灰分制备水泥熟料,通过易烧性实验、衍射、岩相分析、核磁共振等方法研究其对熟料矿物和微观形貌的影响。结果表明:随着污泥掺量的增加,游离钙的含量先减小后增大;衍射和核磁共振分析得出C_3S/C_2S的比值先增大后减小,C_3S在污泥灰掺量为1%时相对含量最高;岩相分析得出掺量为1%时,晶型完整,各矿物相分布均匀。掺量为1%时从矿物组成和微观形貌为最优。
Cement clinker was prepared by adding different proportions of sludge ash. The influence of the clinker on the mineral and micro-structure of clinker was investigated by flammability test,diffraction,petrographic analysis,nuclear magnetic resonance etc. The results show that the content of f-CaO decreased first and then increased with the increase of sludge content. And the ratio of C_3S/C_2S lead to the reverse law by diffraction and nuclear magnetic resonance. The content of C_3S was the highest when the amount of sludge was one percent. At this percent,the crystalline type was complete and the mineral phases was well distributed through lithofacies analysis. The optimum content is one percent from mineral composition and microstructure.
Cement clinker was prepared by adding different proportions of sludge ash. The influence of the clinker on the mineral and micro-structure of clinker was investigated by flammability test,diffraction,petrographic analysis,nuclear magnetic resonance etc. The results show that the content of f-CaO decreased first and then increased with the increase of sludge content. And the ratio of C_3S/C_2S lead to the reverse law by diffraction and nuclear magnetic resonance. The content of C_3S was the highest when the amount of sludge was one percent. At this percent,the crystalline type was complete and the mineral phases was well distributed through lithofacies analysis. The optimum content is one percent from mineral composition and microstructure.
引文
[1]张智,李舒扬,周黔生,等.利用水泥窑协同处置污泥对熟料的影响[J].中国给水排水,2012,28(19):1-3.
[2]匡鸿,马勇,王诚,等.城市污泥深度脱水和水泥窑协同处理的集成应用[J].水泥技术,2012(5):34-38.
[3]尹会燕,李珊,刘俊新,等.水泥窑协同处理污泥的专利技术与应用[J].环境工程,2014,11(25):108-112
[4]刘素芹,熊永超,钱英.水泥窑协同处置城市污泥试生产的成效[J].江苏建材,2013(1):22-25.
[5]王晰,刘晨,颜碧兰,等.国内外水泥窑协同处置城市固体废弃物现状与应用[J].硅酸盐通报,2014,33(8):1989-1995.
[6]丁琼,彭政,闫大海,等.欧盟水泥窑协同处置发展对我国的启示[J].环境保护,2015(C1):89-91.
[7]唐艳冬,陈坤,王树堂,等.水泥窑共处置应用的国际经验[J].环境保护,2012(14):68-71.
[8]范海宏,张诗洋,李斌斌,等.污泥干化过程中含硫气体的抑制研究[J].硅酸盐通报,2017,36(3):888-892.
[9]于小娟,蒋吉方.污泥填埋关键技术研究现状与发展[J].四川建筑科学研究,2014,40(4):206-210.
[10]余杰,郑国砥,高定,等.城市污泥土地利用的国际发展趋势与展望[J].中国给水排水,2012,28(20):28-30.
[11]王志国,蓝梅,刘晓琳.污泥焚烧技术研究[J].市政技术,2016,34(4):148-149.
[12]王文华,程君,洪伟,等.水泥窑协同处置污泥技术探究[J].石油化工应用,2016,35(5):132-134.
[13]郝晓地,詹兴,曹达啓.剩余污泥厌氧共消化技术研究现状及应用趋势[J].环境工程学报,2016,10(12):6809-6818.
[14]周利,郭雪松,肖本益,等.城市污水处理厂剩余污泥热值测定方法优化研究[J].环境工程学报,2012,6(8):2805-2808.
[15]张智,李舒扬,周黔生,等.利用水泥窑协同处置污泥对熟料的影响[J].中国给水排水,2012,28(19):1-3.
[16]管宗甫,陈益民,秦守婉.杂质离子对硅酸盐水泥熟料烧成影响的研究进展[J].硅酸盐学报,2003,31(8):795-800.
[17]周枫.外掺氧化物对熟料烧成的影响[D].洛阳:河南科技大学,2012.
[18]傅蓉.外掺氧化物对高CS熟料烧成及性能的影响[D].杭州:浙江大学,2006.
[19]Ghosh S N著,杨南如等译校.水泥技术进展[M].北京:中国建筑工业出版社,1986.
[2]匡鸿,马勇,王诚,等.城市污泥深度脱水和水泥窑协同处理的集成应用[J].水泥技术,2012(5):34-38.
[3]尹会燕,李珊,刘俊新,等.水泥窑协同处理污泥的专利技术与应用[J].环境工程,2014,11(25):108-112
[4]刘素芹,熊永超,钱英.水泥窑协同处置城市污泥试生产的成效[J].江苏建材,2013(1):22-25.
[5]王晰,刘晨,颜碧兰,等.国内外水泥窑协同处置城市固体废弃物现状与应用[J].硅酸盐通报,2014,33(8):1989-1995.
[6]丁琼,彭政,闫大海,等.欧盟水泥窑协同处置发展对我国的启示[J].环境保护,2015(C1):89-91.
[7]唐艳冬,陈坤,王树堂,等.水泥窑共处置应用的国际经验[J].环境保护,2012(14):68-71.
[8]范海宏,张诗洋,李斌斌,等.污泥干化过程中含硫气体的抑制研究[J].硅酸盐通报,2017,36(3):888-892.
[9]于小娟,蒋吉方.污泥填埋关键技术研究现状与发展[J].四川建筑科学研究,2014,40(4):206-210.
[10]余杰,郑国砥,高定,等.城市污泥土地利用的国际发展趋势与展望[J].中国给水排水,2012,28(20):28-30.
[11]王志国,蓝梅,刘晓琳.污泥焚烧技术研究[J].市政技术,2016,34(4):148-149.
[12]王文华,程君,洪伟,等.水泥窑协同处置污泥技术探究[J].石油化工应用,2016,35(5):132-134.
[13]郝晓地,詹兴,曹达啓.剩余污泥厌氧共消化技术研究现状及应用趋势[J].环境工程学报,2016,10(12):6809-6818.
[14]周利,郭雪松,肖本益,等.城市污水处理厂剩余污泥热值测定方法优化研究[J].环境工程学报,2012,6(8):2805-2808.
[15]张智,李舒扬,周黔生,等.利用水泥窑协同处置污泥对熟料的影响[J].中国给水排水,2012,28(19):1-3.
[16]管宗甫,陈益民,秦守婉.杂质离子对硅酸盐水泥熟料烧成影响的研究进展[J].硅酸盐学报,2003,31(8):795-800.
[17]周枫.外掺氧化物对熟料烧成的影响[D].洛阳:河南科技大学,2012.
[18]傅蓉.外掺氧化物对高CS熟料烧成及性能的影响[D].杭州:浙江大学,2006.
[19]Ghosh S N著,杨南如等译校.水泥技术进展[M].北京:中国建筑工业出版社,1986.