摘要：采用正交实验方法研究金矿尾矿掺量、粉煤灰掺量、煤粉掺量、预热温度、预热时间、焙烧温度、焙烧时间7个因素对陶粒制品性能的影响;以陶粒的堆积密度、筒压强度和吸水率性能作为考查指标,得出烧制陶粒的最优方案。结果表明,金矿尾矿掺量为55 g,粉煤灰掺量为34 g,煤粉掺量为3 g,预热温度为450℃,预热时间为60 min,焙烧温度为1 150℃,焙烧时间为120 min时,制得的陶粒综合性能最好。

关键词：金矿尾矿；陶粒；正交实验

Abstract: The orthogonal test was used to study the effect parameters such as dosage of gold tailings, fly ash, coal, preheating temperature, preheating time, calcination temperature, and calcination time on property of ceramsites. The packing density, cylinder pressive strength and water absorption rate were selected as the indexes. The optimum parameters were obtained. The results show that when the mass of gold tailings is 55 g, the mass of fly ash is 34 g, the mass of coal is 3 g, the preheating temperature is 450 ℃ , the preheating time is 60 min, the calcination temperture is 1 150 ℃ holding 120 min, the comprehensive property of the ceramsites is the best. 

Keywords: gold tailings; ceramsite; orthogonal test