预热及焙烧温度对珍珠岩膨胀倍数测定的影响
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摘要
目前市场上对珍珠岩的膨胀倍数测定方法比较成熟,但是不同矿区的珍珠岩在选矿加工的过程中受预热温度及焙烧的温度影响较大,不能按照统一标准进行。探讨了在一定的样品粒径,预热时间,焙烧时间等条件下,预热温度及焙烧温度对珍珠岩膨胀性能的影响。通过正交试验方法得出某一矿区珍珠岩最佳的预热温度和焙烧温度,以达到珍珠岩的最佳膨胀性能。
At present, the method for determining the expansion ratio of perlite is relatively mature, but the perlite in different mining areas is greatly affected by the preheating temperature and the calcination temperature during the beneficiation process, and cannot be carried out according to the uniform standard. This paper mainly discusses the effects of preheating temperature and calcination temperature on the expansion properties of perlite under certain conditions such as sample size, preheating time and calcination time. The optimum preheating temperature and calcination temperature of perlite in a mining area are obtained by orthogonal test method to achieve the best expansion performance of perlite.
At present, the method for determining the expansion ratio of perlite is relatively mature, but the perlite in different mining areas is greatly affected by the preheating temperature and the calcination temperature during the beneficiation process, and cannot be carried out according to the uniform standard. This paper mainly discusses the effects of preheating temperature and calcination temperature on the expansion properties of perlite under certain conditions such as sample size, preheating time and calcination time. The optimum preheating temperature and calcination temperature of perlite in a mining area are obtained by orthogonal test method to achieve the best expansion performance of perlite.
引文
[1]周秀清.珍珠岩膨胀倍数的测定.1671-0460(2008)02-0122-04
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[2]岩石矿物分析(第四版)[M].地质出版社.
[3]宋世林,付桂元,余晟.实验室测试珍珠岩膨胀性能研究[J].非金属矿,2001年01期.
[4]张玉军,唐仪兴.李家窑膨胀岩膨胀性能的试验研究[J].岩土力学,1999年03期.
[5]王勇华,张坤建,冯惠敏.珍珠岩膨胀倍数测试影响因素研究[J].中国非金属矿工业导刊,2012年06期.
[6]刘鹏,刘红燕.信阳上天梯珍珠岩膨胀性能影响因数研究[J].非金属矿,2008年9月第31卷第5期.
[7]严育通,贾宝剑,周红升,等.珍珠岩矿床地质背景研究进展[J].信阳师范学院学报(自然科学版),2016,29(4).
[8]喻乐华,段庆普,珍珠岩掺合料水泥浆体的微孔结构[J].硅酸盐学报,2006,34(7).
[9]徐瑞锋,黄少文,罗琦,张思宇.珍珠岩粉对水泥基彩色装饰砂浆性能的影响[J].新型建筑材料,2018,45(2).
[10]于永生,王艳蕊.珍珠岩矿中Si、Al、Ti含量的测定[J].信阳师范学院学报,2010年02期.