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高铁铝土矿热压块抗压强度影响因素响应曲面优化

DOI: 10.3969/j.issn.1005-3026.2015.09.014, PP. 1278-1282

Keywords: 高铁铝土矿热压块,含碳球团,抗压强度,响应曲面优化法,数学模型

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Abstract:

基于响应曲面优化法,采用中心组合设计,系统研究了配煤量、矿粉粒度、煤粉粒度等工艺参数及其交互作用对高铁铝土矿热压块抗压强度的影响,并建立了相关的数学预测模型.研究表明,各工艺参数对高铁铝土矿热压块抗压强度的影响显著,其程度大小依次为配煤量、矿粉粒度、煤粉粒度;所建立的数学模型相关系数为0.9589,该模型能够预测高铁铝土矿热压块抗压强度随各参数的变化规律;利用该模型对高铁铝土矿热压块的制备工艺进行了参数优化,优化制备工艺参数为:配煤量19.0%,矿粉粒度96μm,煤粉粒度80μm,在此条件下制备的热压块抗压强度为1024.3N,与模型预测值1000N接近,相差只有2.43%,说明该数学模型能够为高铁铝土矿热压块制备工艺的优化提供参考.

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