| 城市生活污泥烧结制陶粒的两种工艺比较研究 |
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| 引用本文： | 杜欣,金宜英,张光明,王兴润,聂永丰.城市生活污泥烧结制陶粒的两种工艺比较研究[J].环境工程学报,2007,1(4):109-114. |
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| 作者姓名： | 杜欣 金宜英 张光明 王兴润 聂永丰 |
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| 作者单位： | 清华大学环境科学与工程系,北京,100084 |
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| 基金项目： | 清华大学校科研和教改项目 |
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| 摘 要： | 通过试验比较了"湿法造粒-烧结"和"干化-烧结"2种利用城市生活污泥烧结制陶粒的工艺路线.分析了工艺路线、原料配比和烧结温度对污泥陶粒的产品强度、吸水率和密度等性能指标的影响,同时指出了沸石粉和粘土作为助熔剂的不同作用机理和作用温度.实验结果表明,污泥"干化-烧结"制陶粒更有优势.烧结陶粒不会造成二次污染.综合考虑产品性能与经济性,适宜的物料配比为干污泥50%、粉煤灰30%～40%、粘土10%～20%.
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| 关 键 词： | 城市生活污泥 陶粒 湿法 干化 烧结 城市 生活污泥 烧结陶粒 工艺比较 研究 manufacturing sewage sludge municipal sintering technologies 粉煤灰 物料配比 经济性 产品性能 综合 二次污染 优势 结果 实验 作用温度 |
| 文章编号： | 1673-9108（2007）04-0109-06 |
| 修稿时间： | 2006-06-122006-08-12 |
Research on two technologies of sintering municipal sewage sludge for manufacturing haydite |
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| Du Xin,Jin Yiying,Zhang Guangming,Wang Xingrun and Nie Yongfeng.Research on two technologies of sintering municipal sewage sludge for manufacturing haydite[J].Techniques and Equipment for Environmental Pollution Control,2007,1(4):109-114. |
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| Authors: | Du Xin Jin Yiying Zhang Guangming Wang Xingrun and Nie Yongfeng |
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| Institution: | Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084,Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084,Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084,Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084 and Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084 |
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| Abstract: | Two technologies of sintering municipal sewage sludge for manufacturing haydite ("wet process granulation-sintering" and "anhydration-sintering") were studied.The influences of technology,batch formula and sintering temperature on the compression strength,hygroscopic coefficient and density of haydite were analyzed.Two different kinds of fluxing actions and their action temperature of zeolite powder and clay were also investigated.The result showed that the "anhydration-sintering" technology was more suitable,and the proper mixture ratio was 50% of dry sludge,30%~40% of fly ash and 10%~20% of clay.The environmental security of product was also testified. |
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| Keywords: | municipal sewage sludge haydite wet process anhydration sintering |
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