Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for solidifying and stabilizing waste incineration fly ash by using construction waste
The invention relates to the technical field of waste incineration fly ash treatment, in particular to a method for solidifying and stabilizing waste incineration fly ash through construction waste. A method for solidifying and stabilizing waste incineration fly ash through construction waste comprises the following steps that the waste incineration fly ash and the construction waste are evenly mixed and then subjected to high-temperature melting, then melt is cooled, and a geopolymer block material is obtained; finely grinding the geopolymer block material until the mass fraction of-45m is greater than or equal to 75% and the specific surface area is greater than or equal to 450m < 2 >/kg to obtain a powdery geopolymer material; the powdery geopolymer material, the waste incineration fly ash and the exciting agent are evenly mixed, the water-cement ratio is 0.4-0.7, and the fly ash solidified body is prepared. The geopolymer cement material is prepared from the construction waste and the fly ash generated in the waste incineration process, and cement and a chelating agent in the solidification and stabilization process are replaced to solidify and stabilize the waste incineration fly ash; the consumption of the cement and the chelating agent is saved, the problem of stockpiling of the construction waste is solved, and the purpose of treating waste with waste is achieved.
本申请涉及垃圾焚烧飞灰处置技术领域，特别涉及一种利用建筑垃圾固化稳定化垃圾焚烧飞灰的方法。一种利用建筑垃圾固化稳定化垃圾焚烧飞灰的方法，包括以下步骤：将垃圾焚烧飞灰建筑垃圾混匀后进行高温熔融，然后，将熔融物冷却得到地聚物块体材料；将地聚物块体材料进行细磨，细磨至‑45µm的质量分数≥75%，比表面积≥450m2/kg，得到粉状地聚物材料；将粉状地聚物材料、垃圾焚烧飞灰和激发剂混匀，水灰比为0.4～0.7，制得飞灰固化体。本发明利用建筑垃圾和垃圾焚烧过程中产生的飞灰制备地聚物水泥材料，代替固化稳定化过程中的水泥和螯合剂对垃圾焚烧飞灰进行固化稳定化；不仅节约了水泥和螯合剂的消耗，同时解决建筑垃圾的堆存问题，达到以废治废的目的。
Method for solidifying and stabilizing waste incineration fly ash by using construction waste
The invention relates to the technical field of waste incineration fly ash treatment, in particular to a method for solidifying and stabilizing waste incineration fly ash through construction waste. A method for solidifying and stabilizing waste incineration fly ash through construction waste comprises the following steps that the waste incineration fly ash and the construction waste are evenly mixed and then subjected to high-temperature melting, then melt is cooled, and a geopolymer block material is obtained; finely grinding the geopolymer block material until the mass fraction of-45m is greater than or equal to 75% and the specific surface area is greater than or equal to 450m < 2 >/kg to obtain a powdery geopolymer material; the powdery geopolymer material, the waste incineration fly ash and the exciting agent are evenly mixed, the water-cement ratio is 0.4-0.7, and the fly ash solidified body is prepared. The geopolymer cement material is prepared from the construction waste and the fly ash generated in the waste incineration process, and cement and a chelating agent in the solidification and stabilization process are replaced to solidify and stabilize the waste incineration fly ash; the consumption of the cement and the chelating agent is saved, the problem of stockpiling of the construction waste is solved, and the purpose of treating waste with waste is achieved.
本申请涉及垃圾焚烧飞灰处置技术领域，特别涉及一种利用建筑垃圾固化稳定化垃圾焚烧飞灰的方法。一种利用建筑垃圾固化稳定化垃圾焚烧飞灰的方法，包括以下步骤：将垃圾焚烧飞灰建筑垃圾混匀后进行高温熔融，然后，将熔融物冷却得到地聚物块体材料；将地聚物块体材料进行细磨，细磨至‑45µm的质量分数≥75%，比表面积≥450m2/kg，得到粉状地聚物材料；将粉状地聚物材料、垃圾焚烧飞灰和激发剂混匀，水灰比为0.4～0.7，制得飞灰固化体。本发明利用建筑垃圾和垃圾焚烧过程中产生的飞灰制备地聚物水泥材料，代替固化稳定化过程中的水泥和螯合剂对垃圾焚烧飞灰进行固化稳定化；不仅节约了水泥和螯合剂的消耗，同时解决建筑垃圾的堆存问题，达到以废治废的目的。
Method for solidifying and stabilizing waste incineration fly ash by using construction waste
一种利用建筑垃圾固化稳定化垃圾焚烧飞灰的方法
LI QUANMING (Autor:in) / GENG CHAO (Autor:in) / ZHANG HONG (Autor:in) / MEI XIAOHAN (Autor:in) / TIAN YU (Autor:in) / LIANG HUI (Autor:in)
13.09.2024
Patent
Elektronische Ressource
Chinesisch
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