Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Ladle stuffing sand and production process thereof
The invention relates to the technical field of metal smelting auxiliary materials, in particular to ladle filler sand and a production process thereof.The ladle filler sand comprises, by weight, 50%-85% of chromium ore, 10%-40% of silica sand, 0.1%-0.6% of carbon black, 0.2%-0.8% of graphite, 0.1%-0.5% of graphene and 4%-10% of mullite sand; wherein the total weight percentage of the carbon black, the graphite and the graphene does not exceed 1%; the production process comprises the following steps: uniformly mixing the chromium ore sand, the silica sand and the mullite sand, and adding the mixture into the carbon black, the graphite and the graphene which are uniformly mixed. The mullite sand and the graphene are added, the reaction of the mullite sand and the silica sand can improve the refractoriness of the ladle filler sand and increase the sintering temperature, the good heat conduction capacity of the graphene enables heat in the ladle filler sand to be spread more evenly, the synergistic effect of the mullite sand and the silica sand is beneficial to construction of a sintering layer moderate and stable in thickness, the high steel ladle self-opening rate can be kept, and the sintering temperature can be increased. And steel seepage is not easy to occur.
本发明涉及金属冶炼辅料技术领域，具体提出一种钢包引流砂及其生产工艺，钢包引流砂包括以重量百分比计的：铬矿砂50％‑85％、硅砂10％‑40％、碳黑0.1％‑0.6％、石墨0.2％‑0.8％、石墨烯0.1％‑0.5％和莫来石砂4％‑10％，其中：碳黑、石墨、石墨烯的总重量百分比不超过1％；其生产工艺为：将铬矿砂、硅砂及莫来石砂混合均匀并加入到已混合均匀的碳黑、石墨、石墨烯中。本发明添加有莫来石砂和石墨烯，莫来石砂与硅砂反应能改善引流砂的耐火度，提高烧结温度，石墨烯良好的导热能力使得引流砂中的热量传播更为均匀，两者协同作用有助于构建厚度适中、稳定的烧结层，既能保持高的钢包自开率，又不易出现渗钢。
Ladle stuffing sand and production process thereof
The invention relates to the technical field of metal smelting auxiliary materials, in particular to ladle filler sand and a production process thereof.The ladle filler sand comprises, by weight, 50%-85% of chromium ore, 10%-40% of silica sand, 0.1%-0.6% of carbon black, 0.2%-0.8% of graphite, 0.1%-0.5% of graphene and 4%-10% of mullite sand; wherein the total weight percentage of the carbon black, the graphite and the graphene does not exceed 1%; the production process comprises the following steps: uniformly mixing the chromium ore sand, the silica sand and the mullite sand, and adding the mixture into the carbon black, the graphite and the graphene which are uniformly mixed. The mullite sand and the graphene are added, the reaction of the mullite sand and the silica sand can improve the refractoriness of the ladle filler sand and increase the sintering temperature, the good heat conduction capacity of the graphene enables heat in the ladle filler sand to be spread more evenly, the synergistic effect of the mullite sand and the silica sand is beneficial to construction of a sintering layer moderate and stable in thickness, the high steel ladle self-opening rate can be kept, and the sintering temperature can be increased. And steel seepage is not easy to occur.
本发明涉及金属冶炼辅料技术领域，具体提出一种钢包引流砂及其生产工艺，钢包引流砂包括以重量百分比计的：铬矿砂50％‑85％、硅砂10％‑40％、碳黑0.1％‑0.6％、石墨0.2％‑0.8％、石墨烯0.1％‑0.5％和莫来石砂4％‑10％，其中：碳黑、石墨、石墨烯的总重量百分比不超过1％；其生产工艺为：将铬矿砂、硅砂及莫来石砂混合均匀并加入到已混合均匀的碳黑、石墨、石墨烯中。本发明添加有莫来石砂和石墨烯，莫来石砂与硅砂反应能改善引流砂的耐火度，提高烧结温度，石墨烯良好的导热能力使得引流砂中的热量传播更为均匀，两者协同作用有助于构建厚度适中、稳定的烧结层，既能保持高的钢包自开率，又不易出现渗钢。
Ladle stuffing sand and production process thereof
一种钢包引流砂及其生产工艺
LIU XIFENG (Autor:in)
06.08.2024
Patent
Elektronische Ressource
Chinesisch
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