矿山剥离料制备陶粒滤料工艺与机理研究

doi:10.16552/j.cnki.issn1001-1625.2024.1090

硅酸盐通报 ›› 2025, Vol. 44 ›› Issue (4): 1546-1555.DOI: 10.16552/j.cnki.issn1001-1625.2024.1090

矿山剥离料制备陶粒滤料工艺与机理研究

孙旭超¹, 李瑞¹, 薛璐韬¹, 吴开振¹, 吴晓勇¹, 李育彪¹, 池汝安²

1.武汉理工大学资源与环境工程学院,武汉 430070;
2.湖北三峡实验室,武汉 430070

收稿日期:2024-09-12 修订日期:2024-11-25 出版日期:2025-04-15 发布日期:2025-04-18
通信作者: 李育彪,博士,教授。E-mail:yubiao.li@whut.edu.cn
作者简介:孙旭超(2001—),男,硕士研究生。主要从事固体废弃物资源化利用及污水处理方向的研究。E-mail:xuchao.sun@whut.edu.cn
基金资助:
湖北省科技重大专项(2022ACA004-6);湖北三峡实验室创新基金项目(SC232019)

Process and Mechanism of Ceramsite Filter Material Prepared from Mine Stripping Materials

SUN Xuchao¹, LI Rui¹, XUE Lutao¹, WU Kaizhen¹, WU Xiaoyong¹, LI Yubiao¹, CHI Ru’an²

1. School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430070, China;
2. Hubei Three Gorges Laboratory, Wuhan 430070, China

Received:2024-09-12 Revised:2024-11-25 Published:2025-04-15 Online:2025-04-18

摘要/Abstract

摘要： 陶粒滤料因具有质轻、孔隙多、比表面积大等优势,在生物滤池、曝气滤池、人工湿地等水处理领域得到广泛应用。为解决矿山剥离料的大量堆存,本文以砂石骨料矿山剥离料固废为主要原料,并添加铝矾土和石灰石,采用烧结法制备陶粒滤料,研究了配料比、用水量、烧制条件等因素对陶粒滤料性能的影响,并阐明了烧结机理。结果表明,原料内部的矿物形成了钙长石、透辉石和刚玉等强度矿物相。在剥离料、铝矾土、石灰石质量比为7∶4∶1、烧制温度为1 120 ℃、保温时间为45 min的烧结条件下,制备出堆积密度为765.90 kg/m³、破碎率为3.24%、空隙率为54.45%的陶粒滤料,这为矿山剥离料的高值化利用提供了一种新途径。

关键词: 陶粒滤料, 矿山剥离料, 砂石骨料, 烧结法, 烧制条件

Abstract: Ceramsite filter material has been widely used in water treatment fields such as biological filter, aerated filter and constructed wetland due to its advantages of light weight, many pores and large specific surface area. In order to solve the large-scale storage of mine stripping materials, this paper used the solid waste of sand and gravel aggregate mine stripping materials as main raw material, and added bauxite and limestone to prepare ceramsite filter materials by sintering method. The effects of batch ratio, water consumption, firing conditions and other factors on the performance of ceramsite filter materials were studied, and the sintering mechanism was clarified. The results show that the minerals inside raw materials form strong mineral phases such as anorthite, diopside and corundum. When the mass ratio of stripping material, bauxite and limestone is 7∶4∶1, the sintering temperature is 1 120 ℃ and the holding time is 45 min, the ceramsite filter material with a bulk density of 765.90 kg/m³, a crushing rate of 3.24%, and a porosity of 54.45% is prepared, which provides a new way for high value utilization of mine stripping materials.

Key words: ceramsite filter material, mine stripping material, sand aggregate, sintering method, firing condition

中图分类号:

TD985

孙旭超, 李瑞, 薛璐韬, 吴开振, 吴晓勇, 李育彪, 池汝安. 矿山剥离料制备陶粒滤料工艺与机理研究[J]. 硅酸盐通报, 2025, 44(4): 1546-1555.

SUN Xuchao, LI Rui, XUE Lutao, WU Kaizhen, WU Xiaoyong, LI Yubiao, CHI Ru’an. Process and Mechanism of Ceramsite Filter Material Prepared from Mine Stripping Materials[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2025, 44(4): 1546-1555.

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矿山剥离料制备陶粒滤料工艺与机理研究

Process and Mechanism of Ceramsite Filter Material Prepared from Mine Stripping Materials

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