Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a method for preparing general-purpose Portland cement clinker by using nickel-iron slag leaching residues, and relates to the field of environmental protection and building materials, the method comprises the following steps: mixing nickel-iron slag sulfuric acid leaching residues, blast furnace slag, lime and a regulator, carrying out ball milling, carrying out high temperature roasting, rapidly cooling the roasted product, and drying to obtain the general-purpose Portland cement clinker. And finally, grinding to produce Portland cement clinker. By adopting a high-temperature multi-phase reaction, the raw material is converted into a cement phase of active components such as tricalcium silicate, dicalcium silicate and tetracalcium aluminoferrite; the nickel-iron slag sulfuric acid leaching slag has small granularity, does not need to be levigated, has large slag doping amount and is easy to burn through, and the main performance indexes of the produced Portland cement clinker meet the national standard requirements of general Portland cement clinker. The method has important reference value for reduction of the ferronickel slag; good market prospects and popularization values are realized.
本发明公开了一种利用镍铁渣浸出渣制备通用硅酸盐水泥熟料的方法，涉及环保与建材领域，所述方法包括：首先将镍铁渣硫酸浸出渣与高炉渣、石灰以及调整剂混合球磨后进行高温焙烧，随后对焙烧产物进行快速冷却，最后磨细后产出硅酸盐水泥熟料；本发明通过采用高温多相反应，使生料转化为硅酸三钙、硅酸二钙以及铁铝酸四钙等活性组分的水泥相；镍铁渣硫酸浸出渣粒度很小，无须磨细，渣可掺加量大，容易烧透，产出的硅酸盐水泥熟料主要性能指标达到通用硅酸盐水泥熟料国家标准要求。本发明对镍铁渣的减量化具有重要参考价值；具备极好的市场前景和推广价值。
The invention discloses a method for preparing general-purpose Portland cement clinker by using nickel-iron slag leaching residues, and relates to the field of environmental protection and building materials, the method comprises the following steps: mixing nickel-iron slag sulfuric acid leaching residues, blast furnace slag, lime and a regulator, carrying out ball milling, carrying out high temperature roasting, rapidly cooling the roasted product, and drying to obtain the general-purpose Portland cement clinker. And finally, grinding to produce Portland cement clinker. By adopting a high-temperature multi-phase reaction, the raw material is converted into a cement phase of active components such as tricalcium silicate, dicalcium silicate and tetracalcium aluminoferrite; the nickel-iron slag sulfuric acid leaching slag has small granularity, does not need to be levigated, has large slag doping amount and is easy to burn through, and the main performance indexes of the produced Portland cement clinker meet the national standard requirements of general Portland cement clinker. The method has important reference value for reduction of the ferronickel slag; good market prospects and popularization values are realized.
本发明公开了一种利用镍铁渣浸出渣制备通用硅酸盐水泥熟料的方法，涉及环保与建材领域，所述方法包括：首先将镍铁渣硫酸浸出渣与高炉渣、石灰以及调整剂混合球磨后进行高温焙烧，随后对焙烧产物进行快速冷却，最后磨细后产出硅酸盐水泥熟料；本发明通过采用高温多相反应，使生料转化为硅酸三钙、硅酸二钙以及铁铝酸四钙等活性组分的水泥相；镍铁渣硫酸浸出渣粒度很小，无须磨细，渣可掺加量大，容易烧透，产出的硅酸盐水泥熟料主要性能指标达到通用硅酸盐水泥熟料国家标准要求。本发明对镍铁渣的减量化具有重要参考价值；具备极好的市场前景和推广价值。
Method for preparing general-purpose Portland cement clinker by using ferronickel slag leaching slag
一种利用镍铁渣浸出渣制备通用硅酸盐水泥熟料的方法
15.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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