磷化工废弃物制备建筑陶粒的工艺研究  

Study on the Process of Preparing Construction Ceramsite from Phosphorus Chemical Industry Waste

作　　者：刘中炜[1] 杨卫奇[1] 高光明 LIU Zhongwei;YANG Weiqi;GAO Guangming

机构地区：[1]四川建筑职业技术学院多组元合金德阳市重点实验室,四川德阳618000

出　　处：《重庆建筑》2025年第3期54-56,共3页Chongqing Architecture

基　　金：2022年德阳市科技计划项目“磷渣低温烧结制备建筑陶瓷研究”(项目编号:2022SZ078)。

摘　　要：以磷渣、煅烧氧化铝和石英砂分别作为钙质原料、铝质原料和硅质原料,以磷石膏塑化剂,制备陶粒。研究陶粒的制备工艺对堆积密度、质量吸水率及筒压强度的影响。利用X射线衍射仪对原材料进行了表征分析,实验发现磷石膏用量6%时,并在1 120℃下煅烧、保温2 h,制备的建筑陶粒堆积密度为784.9 kg/m^(3),吸水率为9.6%,筒压强度为4.7 MPa,可替代天然骨料,生产陶粒混凝土,使磷化工废弃物得到了有效利用。Ceramsite was prepared using phosphorus slag as the calcium source,calcined alumina as the aluminum source,and quartz sand as the silicon source,with phosphogypsum serving as the plasticizer.The effects of the ceramsite preparation process on bulk density,water absorption,and cylinder compressive strength were investigated.The raw materials were characterized and analyzed using X-ray diffraction.The experimental results showed that when the phosphogypsum content was 6%,and the ceramsite was fired at 1,120℃for 2 hours with holding time,the resulting construction ceramsite had a bulk density of 784.9 kg/m^(3),a water absorption rate of 9.6%,and a cylinder compressive strength of 4.7 MPa.This ceramsite can replace natural aggregates for the production of ceramsite concrete,effectively utilizing phosphorus chemical industry waste.

关 键 词：磷石膏 磷渣 陶粒 烧结工艺 

分 类 号：TQ174.75[化学工程—陶瓷工业]