Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing artificial pozzolanic mixed material by treating polluted soil with cement kiln and application of artificial pozzolanic mixed material
The invention relates to a method for preparing an artificial pozzolanic mixed material by utilizing a cement kiln to treat polluted soil and application of the method, and the method for preparing the artificial pozzolanic mixed material by utilizing the cement kiln to treat the polluted soil comprises the following steps: mixing the polluted soil with one of coal gangue, fly ash slag, red mud, a sulfur activator or a sulfur-alkali activator; the content of aluminum oxide in the mixture is larger than or equal to 12%, and the aluminum-silicon ratio is larger than or equal to 0.3; and controlling the calcining temperature of the cement kiln to be more than or equal to 650 DEG C and the calcining time to be more than or equal to 30 minutes to obtain the The pozzolanic mixed material is applied to masonry mortar or plastering mortar. The invention provides a solution and a market way for reutilization of the residue generated by harmless treatment of the polluted soil by the cement kiln, and has important significance for widening the utilization way of the residue after treatment of the polluted soil, improving the reutilization value of the residue, opening the whole industrial chain of large-scale waste treatment of the cement kiln and promoting the construction of a waste-free city.
本发明涉及一种利用水泥窑处置污染土制备人造火山灰质混合材料的方法及其应用，利用水泥窑处置污染土制备人造火山灰质混合材料的方法，包括如下步骤：将污染土与煤矸石、粉煤灰渣、赤泥、硫激发剂或硫碱激发剂中的一种混合，使混合物中三氧化二铝含量≥12％、铝硅比≥0.3，由水泥窑窑尾入窑；控制水泥窑煅烧温度≥650℃，煅烧时间≥30min，得到火山灰质混合材料。火山灰质混合材料应用于砌筑砂浆或抹灰砂浆中。本发明为水泥窑无害化处理污染土产生的残渣再利用提供解决方案和市场出路，对于拓宽污染土处置后残渣的利用途径，提高其再利用价值，打通水泥窑大规模处理废物全产业链以及推进无废城市建设具有重要意义。
Method for preparing artificial pozzolanic mixed material by treating polluted soil with cement kiln and application of artificial pozzolanic mixed material
The invention relates to a method for preparing an artificial pozzolanic mixed material by utilizing a cement kiln to treat polluted soil and application of the method, and the method for preparing the artificial pozzolanic mixed material by utilizing the cement kiln to treat the polluted soil comprises the following steps: mixing the polluted soil with one of coal gangue, fly ash slag, red mud, a sulfur activator or a sulfur-alkali activator; the content of aluminum oxide in the mixture is larger than or equal to 12%, and the aluminum-silicon ratio is larger than or equal to 0.3; and controlling the calcining temperature of the cement kiln to be more than or equal to 650 DEG C and the calcining time to be more than or equal to 30 minutes to obtain the The pozzolanic mixed material is applied to masonry mortar or plastering mortar. The invention provides a solution and a market way for reutilization of the residue generated by harmless treatment of the polluted soil by the cement kiln, and has important significance for widening the utilization way of the residue after treatment of the polluted soil, improving the reutilization value of the residue, opening the whole industrial chain of large-scale waste treatment of the cement kiln and promoting the construction of a waste-free city.
本发明涉及一种利用水泥窑处置污染土制备人造火山灰质混合材料的方法及其应用，利用水泥窑处置污染土制备人造火山灰质混合材料的方法，包括如下步骤：将污染土与煤矸石、粉煤灰渣、赤泥、硫激发剂或硫碱激发剂中的一种混合，使混合物中三氧化二铝含量≥12％、铝硅比≥0.3，由水泥窑窑尾入窑；控制水泥窑煅烧温度≥650℃，煅烧时间≥30min，得到火山灰质混合材料。火山灰质混合材料应用于砌筑砂浆或抹灰砂浆中。本发明为水泥窑无害化处理污染土产生的残渣再利用提供解决方案和市场出路，对于拓宽污染土处置后残渣的利用途径，提高其再利用价值，打通水泥窑大规模处理废物全产业链以及推进无废城市建设具有重要意义。
Method for preparing artificial pozzolanic mixed material by treating polluted soil with cement kiln and application of artificial pozzolanic mixed material
利用水泥窑处置污染土制备人造火山灰质混合材料的方法及其应用
HAN XIAOGUANG (Autor:in) / GUO QINGFANG (Autor:in) / LIU JINLEI (Autor:in) / MENG LINGJU (Autor:in) / ZHANG GUANGYI (Autor:in) / MA JIAN (Autor:in) / LI HONGSHENG (Autor:in) / LIU ZHIGANG (Autor:in) / SUN DECHENG (Autor:in) / WANG SHUO (Autor:in)
19.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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