Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Red mud-based iron aluminate cement and preparation method thereof
The invention relates to red-mud-based iron aluminate cement and a preparation method thereof, and belongs to the technical field of cement clinker. The raw materials comprise the following components in parts by weight: 50-60 parts of high-calcium solid waste, 15-25 parts of high-silicon solid waste, 10-25 parts of high-aluminum solid waste, 20-40 parts of Bayer process red mud and 0-10 parts of high-sulfur solid waste. The preparation method comprises the following steps: S1, mixing the high-calcium solid waste, the high-silicon solid waste, the high-aluminum solid waste and the Bayer process red mud, grinding, homogenizing, preparing a sample, calcining and cooling to prepare red mud-based iron aluminate cement clinker; and S2, mixing the red-mud-based iron aluminate cement clinker with the residual high-calcium solid waste, high-aluminum solid waste and high-sulfur solid waste, and jointly grinding to obtain the red-mud-based iron aluminate cement. The high alkalinity of the Bayer process red mud can be used for preparing the aluminoferrite cement, efficient curing of alkaline components of the red mud is achieved, the technical problem that a red mud product is prone to saltpetering is solved, and a large amount of red mud can be consumed.
本发明涉及一种赤泥基铁铝酸盐水泥及其制备方法，属于水泥熟料技术领域。原料包括如下重量份的组分：高钙固废50‑60份、高硅固废15‑25份、高铝固废10‑25份、拜耳法赤泥20‑40份和高硫固废0‑10份。制备方法包括以下步骤：S1、将高钙固废、高硅固废、高铝固废和拜耳法赤泥混合后，经过粉磨、均化、制样、煅烧、冷却制成赤泥基铁铝酸盐水泥熟料；S2、将赤泥基铁铝酸盐水泥熟料和剩余的高钙固废、高铝固废和高硫固废混合，共同粉磨，获得赤泥基铁铝酸盐水泥。能够利用拜耳法赤泥的高碱性制备铁铝酸盐水泥，实现了赤泥碱性组分的高效固化，解决了赤泥产品易泛碱的技术问题，能够大量消纳赤泥。
Red mud-based iron aluminate cement and preparation method thereof
The invention relates to red-mud-based iron aluminate cement and a preparation method thereof, and belongs to the technical field of cement clinker. The raw materials comprise the following components in parts by weight: 50-60 parts of high-calcium solid waste, 15-25 parts of high-silicon solid waste, 10-25 parts of high-aluminum solid waste, 20-40 parts of Bayer process red mud and 0-10 parts of high-sulfur solid waste. The preparation method comprises the following steps: S1, mixing the high-calcium solid waste, the high-silicon solid waste, the high-aluminum solid waste and the Bayer process red mud, grinding, homogenizing, preparing a sample, calcining and cooling to prepare red mud-based iron aluminate cement clinker; and S2, mixing the red-mud-based iron aluminate cement clinker with the residual high-calcium solid waste, high-aluminum solid waste and high-sulfur solid waste, and jointly grinding to obtain the red-mud-based iron aluminate cement. The high alkalinity of the Bayer process red mud can be used for preparing the aluminoferrite cement, efficient curing of alkaline components of the red mud is achieved, the technical problem that a red mud product is prone to saltpetering is solved, and a large amount of red mud can be consumed.
本发明涉及一种赤泥基铁铝酸盐水泥及其制备方法，属于水泥熟料技术领域。原料包括如下重量份的组分：高钙固废50‑60份、高硅固废15‑25份、高铝固废10‑25份、拜耳法赤泥20‑40份和高硫固废0‑10份。制备方法包括以下步骤：S1、将高钙固废、高硅固废、高铝固废和拜耳法赤泥混合后，经过粉磨、均化、制样、煅烧、冷却制成赤泥基铁铝酸盐水泥熟料；S2、将赤泥基铁铝酸盐水泥熟料和剩余的高钙固废、高铝固废和高硫固废混合，共同粉磨，获得赤泥基铁铝酸盐水泥。能够利用拜耳法赤泥的高碱性制备铁铝酸盐水泥，实现了赤泥碱性组分的高效固化，解决了赤泥产品易泛碱的技术问题，能够大量消纳赤泥。
Red mud-based iron aluminate cement and preparation method thereof
一种赤泥基铁铝酸盐水泥及其制备方法
LI SHUCAI (Autor:in) / GAO YIFAN (Autor:in) / LI ZHAOFENG (Autor:in) / ZHANG JIAN (Autor:in)
15.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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