铝灰协同多源城市固废制备超轻陶粒的可行性研究  

Feasibility study on the preparation of ultralight ceramsite from aluminum ash synergistic multisource urban solid waste

作　　者：权宗刚 吕梦琪 王科颖 陈媛媛 乔师帅 QUAN Zonggang;LYU Mengqi;WANG Keying;CHEN Yuanyuan;QIAO Shishuai(Xi'an Research and Design Institute of Wall&Roof Materials Co.Ltd.,Xi'an 710061,China)

机构地区：[1]西安墙体材料研究设计院有限公司,陕西西安710061

出　　处：《新型建筑材料》2024年第3期86-90,134,共6页New Building Materials

基　　金：“十四五”国家重点研发计划项目(2022YFC3803402)。

摘　　要：铝灰存在遇水释放有毒有害气体的危害,为解决铝灰处置难题,将铝灰利用水相介质预处理后,掺配洗沙底泥、工程渣土、生活污泥,研究铝灰协同多源城市固废制备超轻陶粒的可行性。结果表明,按照m(工程渣土)∶m(洗沙底泥)∶m(生活污泥)∶m(水解铝灰)=24∶57∶10∶9的比例,在1125~1225℃的烧成温度范围内,可烧制平均堆积密度为405 kg/m^(3)、平均吸水率为6.47%、密度等级为500级的超轻陶粒,陶粒性能符合GB/T 17431.1—2010要求,表明该配比采用粉磨成球-回转窑工艺生产铝灰陶粒是可行的。Aluminum ash poses the risk of releasing toxic and harmful gases when it comes into contact with water.To solve the problem of aluminum ash disposal,aluminum ash is pre-treated using aqueous media,mixed with sand washing sediment,engineering waste soil,and domestic sludge,and the feasibility of aluminum ash collaborating with multi-source urban solid waste to prepare ultra-light ceramic particles is studied.The results show that according to the ratio of engineering waste soil∶sand washing bottom mud∶domestic sludge∶hydrolyzed aluminum ash=24∶57∶10∶9,within the firing temperature range of 1125~1225℃,ultra-light ceramic particles with an average stacking density of 405 kg/m^(3),an average water absorption rate of 6.47%,and a density grade of 500 can be fired.The production of aluminum ash ceramic particles using the powder grinding ball rotary kiln process is also feasible,and the performance of ceramic particles products meets the requirements of GB/T 17431.1-2010 standard.

关 键 词：铝灰 协同 多源城市固废 陶粒 

分 类 号：TU551.3[建筑科学—建筑技术科学]