Environment-friendly stemming and preparation method thereof

一种环保炮泥及其制备方法

Abstract

The invention provides an environment-friendly stemming and a preparation method thereof. The environment-friendly stemming is prepared from, by mass, 15-40% of aluminum containing aggregates, 2-15% of coke, 1-5% of graphite, 10-25% of silicon carbide, 5-20% of ferro-silicon nitride, 5-20% of aluminum containing fine powder, 5-15% of clay, 2-8 parts of sericite, 2-6% of high-temperature pitch, 2-15% of an expanding agent and a binding agent accounting for the total mass of the other materials by 15-30%, wherein thermoplastic phenolic resin serves as the binding agent. The environment-friendly stemming and the preparation method thereof have advantages that toxic gases are avoided, a furnace front operation environment is improved, environmental friendliness, low raw material consumption, high hardening speed and short sintering time are realized, opening performance and slag iron erosion resistance of the anhydrous stemming are improved, resistance of the anhydrous stemming to flushing and abrasion of high-temperature molten iron is enhanced, and quality stability of the anhydrous stemming is improved.
本发明提供一种环保炮泥及其制备方法,所述环保炮泥的各组分质量百分比配比如下,含铝骨料15~40%,焦炭2~15%,石墨1~5%,碳化硅10~25%,氮化硅铁5~20%,含铝细粉料5~20%,粘土5~15%,绢云母2~8%,高温沥青2~6%,膨胀剂2~15%,另加结合剂占上述配料总质量的15~30%。所述结合剂为热塑性酚醛树脂,避免有毒气体产生,改善了炉前作业环境,对环境友好,原料消耗低,硬化速度快,烧结时间短,并且提高了无水炮泥的开口性能和抗渣铁冲蚀性,增强了无水炮泥的耐高温铁水的冲刷和磨损性,提高了无水炮泥的质量稳定性。

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