Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing recycled aggregate by using fine iron tailing sand
The invention discloses a method for preparing recycled aggregate by using fine iron tailing sand, which comprises the following steps: in a continuous rotation process, spraying pretreatment liquid water mist on sticky iron tailing sand subjected to interface pretreatment and simultaneously scattering a binding material to generate aggregate particles, and finally, curing the aggregate particles to obtain the recycled aggregate. The method can effectively avoid the problem that when the iron tailing sand and cement are used for preparing the recycled aggregate, the iron tailing sand is much larger than the cement in mass, so that the iron tailing sand is deposited at the bottom of the powder in the centrifugal process, and the problem that the iron tailing sand is separated from the cement in the forming process is solved; the problem that the iron tailing sand cannot be balled to prepare the recycled aggregate is solved; according to the method, the utilization rate of the iron tailing sand with the particle size ranging from 0.15 mm to 1.18 mm reaches 100%, and the problem that the utilization rate of the iron tailing sand with the particle size ranging from 0.15 mm to 1.18 mm is low is solved.
本发明公开了一种利用铁尾矿细砂制备再生骨料的方法，所述方法为：在持续转动过程中，将经过界面预处理后具有黏性的铁尾矿砂进行喷洒预处理液水雾同时撒入胶凝材料方式生成骨料颗粒，最后将骨料颗粒进行养护得到再生骨料。本发明方法能够有效避免铁尾矿砂在与水泥制备再生骨料时，由于铁尾矿砂质量远大于水泥的质量，因此离心过程沉积于粉料底部的问题，解决了成型过程中铁尾矿砂在与水泥分离的问题，克服了铁尾矿砂无法实现成球制备再生骨料的难题；本发明方法使粒径范围在0.15～1.18mm的铁尾矿砂的利用率达到了100％，解决了该粒径范围铁尾矿砂利用率低的问题。
Method for preparing recycled aggregate by using fine iron tailing sand
The invention discloses a method for preparing recycled aggregate by using fine iron tailing sand, which comprises the following steps: in a continuous rotation process, spraying pretreatment liquid water mist on sticky iron tailing sand subjected to interface pretreatment and simultaneously scattering a binding material to generate aggregate particles, and finally, curing the aggregate particles to obtain the recycled aggregate. The method can effectively avoid the problem that when the iron tailing sand and cement are used for preparing the recycled aggregate, the iron tailing sand is much larger than the cement in mass, so that the iron tailing sand is deposited at the bottom of the powder in the centrifugal process, and the problem that the iron tailing sand is separated from the cement in the forming process is solved; the problem that the iron tailing sand cannot be balled to prepare the recycled aggregate is solved; according to the method, the utilization rate of the iron tailing sand with the particle size ranging from 0.15 mm to 1.18 mm reaches 100%, and the problem that the utilization rate of the iron tailing sand with the particle size ranging from 0.15 mm to 1.18 mm is low is solved.
本发明公开了一种利用铁尾矿细砂制备再生骨料的方法，所述方法为：在持续转动过程中，将经过界面预处理后具有黏性的铁尾矿砂进行喷洒预处理液水雾同时撒入胶凝材料方式生成骨料颗粒，最后将骨料颗粒进行养护得到再生骨料。本发明方法能够有效避免铁尾矿砂在与水泥制备再生骨料时，由于铁尾矿砂质量远大于水泥的质量，因此离心过程沉积于粉料底部的问题，解决了成型过程中铁尾矿砂在与水泥分离的问题，克服了铁尾矿砂无法实现成球制备再生骨料的难题；本发明方法使粒径范围在0.15～1.18mm的铁尾矿砂的利用率达到了100％，解决了该粒径范围铁尾矿砂利用率低的问题。
Method for preparing recycled aggregate by using fine iron tailing sand
一种利用铁尾矿细砂制备再生骨料的方法
PAN GANGHUA (Autor:in) / GAO MIN (Autor:in) / MENG HAINING (Autor:in) / ZHU XIANG (Autor:in) / LU XIAOJUN (Autor:in)
29.10.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2022
Iron tailing fine sand and preparation and application thereof
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