工业固体废弃物制备陶粒及其应用研究进展

Preparation and application of ceramsite prepared from industrial solid waste:a review

综述陶粒的分类、陶粒制备工艺、工业固体废弃物制备陶粒的原理;粉煤灰、尾矿、废渣、污泥等固体废弃物为原料制备陶粒的技术;以及陶粒用作吸附材料、制备混凝土砌块、制备支撑剂方面的应用。提出固体废弃物制备陶粒的技术有研究基础,可行性较高,是发展固体废弃物资源化利用的重要途径。认为未来应充分发挥大宗固体废弃物的资源特点与成本优势,制备质轻、多孔、高强陶粒并提高产品综合性能;烧结法制备陶粒技术大规模应用的关键是通过配方优化、装备研发等降低生产能耗。

The classification and the preparation process of ceramsite,the principle of preparing it from industrial solid waste,the technology of preparing ceramsite from fly ash,tailings,waste residue and sludge,and the application of ceramsite as adsorption material,concrete block and proppant were summarized.It is pointed out that the technology of preparing ceramsite from solid waste have research foundation and high feasibility,which is an important way to develop solid waste resource utilization.It is considered that the resource characteristics and cost advantages of bulk solid waste should be fully utilized in the future to prepare lightweight,porous and high-strength ceramsite,and improve the comprehensive performance of products,and the key to the large-scale application of ceramsite preparation by sintering method is to reduce production energy consumption through formula optimization and equipment development.