Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for integrally preparing geopolymer from household garbage incineration fly ash based on hydrothermal method
The invention discloses a method for integrally preparing a geopolymer from household garbage incineration fly ash based on a hydrothermal method, which comprises the following steps: S1, washing the household garbage incineration fly ash with water to obtain a washing product; s2, mixing the washing product with alkali liquor, carrying out hydrothermal reaction, and filtering to obtain hydrothermal filter residues and hydrothermal filtrate; s3, mixing the hydrothermal filter residues with fly ash and metakaolin to obtain a first mixture; s4, mixing the first mixture with an alkali activator and a solvent to obtain slurry; wherein the solvent is a hydrothermal filtrate or a mixed solution of the hydrothermal filtrate and water; s5, the slurry is poured and formed, and the geopolymer is obtained. According to the method provided by the invention, the geopolymer is prepared while the treatment problem of heavy metals and dioxin in the household garbage incineration fly ash is solved, harmless treatment and resource utilization of the household garbage incineration fly ash are realized, and the geopolymer has relatively high compression resistance and breaking strength and can be used as a non-structural light fire-resistant thermal insulation material.
本申请公开了一种基于水热方法的生活垃圾焚烧飞灰一体化制备地聚物方法，包括以下步骤：S1、生活垃圾焚烧飞灰进行水洗，得到水洗产物；S2、水洗产物与碱液混合，水热反应，过滤，得到水热滤渣和水热滤液；S3、将水热滤渣与粉煤灰、偏高岭土混合，得到第一混合物；S4、将第一混合物与碱激发剂、溶剂混合，得到浆料；其中溶剂为水热滤液，或为水热滤液与水的混合液；S5、浆料浇筑成型，得到地聚物。本申请提供的方法，在解决生活垃圾焚烧飞灰中重金属以及二噁英的处理问题的同时制备出地聚物，实现对生活垃圾焚烧飞灰的无害化处理和资源化利用，且地聚物具有较高的抗压及抗折强度，可作为非结构性轻质耐火保温材料使用。
Method for integrally preparing geopolymer from household garbage incineration fly ash based on hydrothermal method
The invention discloses a method for integrally preparing a geopolymer from household garbage incineration fly ash based on a hydrothermal method, which comprises the following steps: S1, washing the household garbage incineration fly ash with water to obtain a washing product; s2, mixing the washing product with alkali liquor, carrying out hydrothermal reaction, and filtering to obtain hydrothermal filter residues and hydrothermal filtrate; s3, mixing the hydrothermal filter residues with fly ash and metakaolin to obtain a first mixture; s4, mixing the first mixture with an alkali activator and a solvent to obtain slurry; wherein the solvent is a hydrothermal filtrate or a mixed solution of the hydrothermal filtrate and water; s5, the slurry is poured and formed, and the geopolymer is obtained. According to the method provided by the invention, the geopolymer is prepared while the treatment problem of heavy metals and dioxin in the household garbage incineration fly ash is solved, harmless treatment and resource utilization of the household garbage incineration fly ash are realized, and the geopolymer has relatively high compression resistance and breaking strength and can be used as a non-structural light fire-resistant thermal insulation material.
本申请公开了一种基于水热方法的生活垃圾焚烧飞灰一体化制备地聚物方法，包括以下步骤：S1、生活垃圾焚烧飞灰进行水洗，得到水洗产物；S2、水洗产物与碱液混合，水热反应，过滤，得到水热滤渣和水热滤液；S3、将水热滤渣与粉煤灰、偏高岭土混合，得到第一混合物；S4、将第一混合物与碱激发剂、溶剂混合，得到浆料；其中溶剂为水热滤液，或为水热滤液与水的混合液；S5、浆料浇筑成型，得到地聚物。本申请提供的方法，在解决生活垃圾焚烧飞灰中重金属以及二噁英的处理问题的同时制备出地聚物，实现对生活垃圾焚烧飞灰的无害化处理和资源化利用，且地聚物具有较高的抗压及抗折强度，可作为非结构性轻质耐火保温材料使用。
Method for integrally preparing geopolymer from household garbage incineration fly ash based on hydrothermal method
一种基于水热方法的生活垃圾焚烧飞灰一体化制备地聚物方法
XU ZHENGYONG (Autor:in) / CHEN JINGWEI (Autor:in) / LI ZHENGLIN (Autor:in) / XIE HUAMING (Autor:in) / OU JINTAO (Autor:in) / LIU YAN (Autor:in) / WANG CHENXI (Autor:in) / FU LIANGYU (Autor:in) / HUANG BING (Autor:in)
16.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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