Regenerated carbon-free brick and preparation method thereof: Fid-Bau Portal

Regenerated carbon-free brick and preparation method thereof

YI YULAI / TANG ANSHAN / ZENG LIMIN / TAO JIN / JIANG MENG / CAO ZHIWEN

The invention provides a regenerated carbon-free brick and a preparation method thereof. The regenerated carbon-free brick provided by the invention is prepared from raw materials; the raw materials comprise a base material and an additive. The base material comprises the following components in percentage by weight: 40wt%-60wt% of an outer ring castable reclaimed material; 10 wt% to 45 wt% of tabular corundum particles; 10 wt% to 20 wt% of a premix; the additive comprises the following components in percentage by mass: 5wt%-7wt% of a binding agent, 2 wt%-5 wt% of water; wherein the premix comprises aluminum powder, silicon carbide powder, white corundum, activated aluminum oxide micro powder and silicon micro powder. According to the invention, 40wt%-60wt% of the outer ring castable reclaimed material is used for replacing a raw material and is matched with the tabular corundum, the premix with a certain composition, the binding agent and the water according to a certain proportion, so that compared with a raw material type carbon-free brick, the use performance and the comprehensive performance can be ensured to be higher than those of an existing magnesia-chrome brick product, and the production cost is reduced.

本发明提供了一种再生无碳砖及其制备方法。本发明提供的再生无碳砖由原料制得；所述原料包括基料和添加物；所述基料包括以下组分：外环浇注料再生料40wt％～60wt％；板状刚玉颗粒10wt％～45wt％；预混料10wt％～20wt％；以各组分占所述基料的质量比计，所述添加物包括：结合剂5wt％～7wt％；水2wt％～5wt％；其中，预混料包括：铝粉、碳化硅粉、白刚玉、活性氧化铝微粉和硅微粉。本发明以40wt％～60wt％的外环浇注料再生料代替原生料，与板状刚玉、一定组成的预混料、结合剂及水一定比例搭配，相比于原生料类无碳砖，能够保证使用性能，综合性能高于现有的镁铬砖产品，且降低了生产成本。

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