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现代矿业 ›› 2023, Vol. 39 ›› Issue (03): 105-107.

• 矿物加工工程 • 上一篇    下一篇

某高掺量铁尾矿制备轻质镁橄榄石耐火骨料试验研究

王素1,2 曹月明1,2 张凯熙1,2 葛阳阳1,2 林瑶1,2   

  1. 1. 河北省地质实验测试中心;2. 河北省矿产资源与生态环境监测重点实验室
  • 出版日期:2023-03-25 发布日期:2023-05-05
  • 基金资助:
    河北省地矿局科技发展项目;高镁质矽卡岩型铁尾矿提锌及资源化利用扩大性试验研究项目(编号:201828);基于海绵城市建设的再生材料透水砖研究项目(编号:201828)

Experimental Study on Preparation of Forsterite Refractories from High-quality Iron Tailings

WANG Su1,2 CAO Yueming1,2 ZHANG Kaixi1,2 GE Yangyang1,2 LIN Yao1,2   

  1. 1. Hebei Geological Experimental Testing Center; 2. Hebei Key Laboratory of Mineral Resources and Ecological Environment Monitoring
  • Online:2023-03-25 Published:2023-05-05

摘要: 河北省堆存有大量低硅铁尾矿,为了探索铁尾矿高附加值的综合利用方法,以河北省 某高镁型低硅铁尾矿掺加少量菱镁矿为原料,进行了高温烧结制备轻质镁橄榄石耐火骨料试验研 究,试验主要探讨了铁尾矿与菱镁矿配比、升温速度、最高烧结温度对样品性能的影响。试验结果表 明:当铁尾矿与菱镁矿配比74∶26、升温速度3 ℃/min、最高烧结温度1 300 ℃时,可得到体积密度1.28 g/cm3、筒压强度6.0 MPa、导热率0.425 W(/ m·K)的轻质镁橄榄石耐火材料骨料。

关键词: 高镁质铁尾矿, 综合利用, 镁橄榄石, 耐火材料

Abstract: There are a large number of low-silicon iron tailings in Hebei Province. In order to explore the high value-added comprehensive utilization method of iron tailings,a high-magnesium low-silicon iron tailings mixed with a small amount of magnesite in Hebei Province was used as raw material to prepare lightweight forsterite refractory aggregate by high-temperature sintering. The experiment mainly discussed the influence of the ratio of iron tailings to magnesite,heating rate and maximum sintering temperature on the performance of the sample. The test results show that when the ratio of iron tailings to magnesite is 74∶26,the heating rate is 3 ℃/min,and the maximum sintering temperature is 1 300 ℃,the lightweight forsterite refractory aggregate with bulk density of 1.28 g/cm3,cylinder compressive strength of 6.0 MPa and thermal conductivity of 0.425 W(/ m·K)can be obtained.

Key words: high magnesium iron tailings, comprehensive utilization, forsterite, refractory material