Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ceramsite fired by fly ash as well as preparation method and application of ceramsite
The invention provides ceramsite fired by utilizing household garbage incineration fly ash as well as a preparation method and application of the ceramsite. Through synergistic hydrothermal coupling pyrolysis treatment of fly ash and sludge, the content of soluble chlorine in a fly ash treatment product is greatly reduced, and the requirement of further recycling is met; the sludge is used as a Si, Al and Fe component regulator, and provides a necessary skeleton substance and a pore-forming agent for the process of preparing the ceramsite from the waste incineration fly ash, so that the waste incineration fly ash is assisted to be sintered; the prepared ceramsite is good in performance, and the high-strength building ceramsite with the density grade of 900-1200 can be prepared under optimal conditions; harmful heavy metals contained in the waste incineration fly ash and the sludge are effectively fixed and stabilized. According to the method, the concept of treating waste with waste is implemented, the incineration fly ash and the sludge are jointly digested, and the method has both environmental benefits and economic benefits.
本发明提出了一种利用生活垃圾焚烧飞灰烧制的陶粒及其制备方法和应用。通过将飞灰与污泥协同水热耦合热解处理，飞灰处理产物可溶性氯含量大大降低，满足进一步资源化的要求；污泥作为Si、Al、Fe组分调节剂，为垃圾焚烧飞灰制备陶粒过程提供了必要的骨架物质和造孔剂，从而辅助垃圾焚烧飞灰进行烧结；所制备的陶粒性能良好，优选条件下可制备出密度等级为900～1200级的高强建筑陶粒；垃圾焚烧飞灰和污泥所含有害重金属得到有效固定稳定化。本发明贯彻了以废治废的理念，实现了焚烧飞灰与污泥共同消纳，兼具环境效益与经济效益。
Ceramsite fired by fly ash as well as preparation method and application of ceramsite
The invention provides ceramsite fired by utilizing household garbage incineration fly ash as well as a preparation method and application of the ceramsite. Through synergistic hydrothermal coupling pyrolysis treatment of fly ash and sludge, the content of soluble chlorine in a fly ash treatment product is greatly reduced, and the requirement of further recycling is met; the sludge is used as a Si, Al and Fe component regulator, and provides a necessary skeleton substance and a pore-forming agent for the process of preparing the ceramsite from the waste incineration fly ash, so that the waste incineration fly ash is assisted to be sintered; the prepared ceramsite is good in performance, and the high-strength building ceramsite with the density grade of 900-1200 can be prepared under optimal conditions; harmful heavy metals contained in the waste incineration fly ash and the sludge are effectively fixed and stabilized. According to the method, the concept of treating waste with waste is implemented, the incineration fly ash and the sludge are jointly digested, and the method has both environmental benefits and economic benefits.
本发明提出了一种利用生活垃圾焚烧飞灰烧制的陶粒及其制备方法和应用。通过将飞灰与污泥协同水热耦合热解处理，飞灰处理产物可溶性氯含量大大降低，满足进一步资源化的要求；污泥作为Si、Al、Fe组分调节剂，为垃圾焚烧飞灰制备陶粒过程提供了必要的骨架物质和造孔剂，从而辅助垃圾焚烧飞灰进行烧结；所制备的陶粒性能良好，优选条件下可制备出密度等级为900～1200级的高强建筑陶粒；垃圾焚烧飞灰和污泥所含有害重金属得到有效固定稳定化。本发明贯彻了以废治废的理念，实现了焚烧飞灰与污泥共同消纳，兼具环境效益与经济效益。
Ceramsite fired by fly ash as well as preparation method and application of ceramsite
一种飞灰烧制的陶粒及其制备方法和应用
LIN JIAJIA (Autor:in) / ZOU XIAOYAN (Autor:in) / WANG YIN (Autor:in) / LAI DENGGUO (Autor:in)
08.04.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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