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Method for preparing building blocks from waste incineration fly ash and waste clay
The invention discloses a method for preparing building blocks from waste incineration fly ash and waste clay. The method comprises the following steps: firstly, calcining the waste incineration fly ash, drying the waste clay, and then grinding and sieving the waste incineration fly ash and the waste clay to control the particle size of raw materials; uniformly mixing the waste incineration fly ash, the waste clay and the calcium/alkalinity regulator, and adding water to regulate the water content to a specific water content; carrying out compression molding on the uniformly stirred mixture, aging for a period of time, and carrying out hydrothermal curing; and performing low-temperature drying and surface treatment on the cured body to obtain the finished building block with certain strength. According to the method, the raw materials are subjected to phase transformation under the hydrothermal condition to form a solidified body with certain strength, effective solidification of heavy metal, chlorine and other pollution components in the fly ash is achieved, and synergistic utilization of the waste incineration fly ash and the waste clay is achieved.
本发明公开了一种利用垃圾焚烧飞灰和废弃黏土制备建筑砌块的方法。方法包括首先对垃圾焚烧飞灰进行煅烧、对废弃黏土进行干燥，然后对它们进行研磨、过筛，以控制原材料粒径；接着将垃圾焚烧飞灰、废弃黏土和钙质/碱度调节剂混合均匀，并加入水调配其含水率至特定含水率；将上述搅拌均匀的混合料进行压制成型，陈化一段时间后进行水热固化；接着对固化体进行低温干燥，表面处理后，即可得到具有一定强度的成品建筑砌块。本发明方法的原材料在水热条件下发生相变形成具有一定强度的固化体，不仅实现了对飞灰中重金属及氯等污染成分的有效固化，而且实现了垃圾焚烧飞灰和废弃黏土的协同利用。
Method for preparing building blocks from waste incineration fly ash and waste clay
The invention discloses a method for preparing building blocks from waste incineration fly ash and waste clay. The method comprises the following steps: firstly, calcining the waste incineration fly ash, drying the waste clay, and then grinding and sieving the waste incineration fly ash and the waste clay to control the particle size of raw materials; uniformly mixing the waste incineration fly ash, the waste clay and the calcium/alkalinity regulator, and adding water to regulate the water content to a specific water content; carrying out compression molding on the uniformly stirred mixture, aging for a period of time, and carrying out hydrothermal curing; and performing low-temperature drying and surface treatment on the cured body to obtain the finished building block with certain strength. According to the method, the raw materials are subjected to phase transformation under the hydrothermal condition to form a solidified body with certain strength, effective solidification of heavy metal, chlorine and other pollution components in the fly ash is achieved, and synergistic utilization of the waste incineration fly ash and the waste clay is achieved.
本发明公开了一种利用垃圾焚烧飞灰和废弃黏土制备建筑砌块的方法。方法包括首先对垃圾焚烧飞灰进行煅烧、对废弃黏土进行干燥，然后对它们进行研磨、过筛，以控制原材料粒径；接着将垃圾焚烧飞灰、废弃黏土和钙质/碱度调节剂混合均匀，并加入水调配其含水率至特定含水率；将上述搅拌均匀的混合料进行压制成型，陈化一段时间后进行水热固化；接着对固化体进行低温干燥，表面处理后，即可得到具有一定强度的成品建筑砌块。本发明方法的原材料在水热条件下发生相变形成具有一定强度的固化体，不仅实现了对飞灰中重金属及氯等污染成分的有效固化，而且实现了垃圾焚烧飞灰和废弃黏土的协同利用。
Method for preparing building blocks from waste incineration fly ash and waste clay
一种利用垃圾焚烧飞灰和废弃黏土制备建筑砌块的方法
CHEN PING (author) / WANG ZI'ANG (author) / SHEN YUNYANG (author) / ZHAN LIANGTONG (author)
2023-11-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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