基于正交试验分析的脱硫石膏煅烧工艺优化  

Calcination Process Optimization of Gypsum Based on Orthogonal Experimental Analysis

作　　者：李扬涛 李刚[1] 汤骅[1] 卫云飞[1] 张伟杰[1] 邓智中[1] 杨文[1] 

机构地区：[1]石河子大学水利建筑工程学院,新疆石河子832003

出　　处：《非金属矿》2017年第4期36-39,共4页Non-Metallic Mines

基　　金：兵团重大科技项目(2016JB02);大学生SRP项目(SRP2017118)

摘　　要：脱硫石膏煅烧处理工艺的好坏直接关系到脱硫石膏的性能和应用。以煅烧温度、煅烧时间、交互作用为主要因素,设计3因素3水平正交试验,研究各因素对脱硫石膏抗压、抗折强度的影响。结果表明:当煅烧温度达到350℃时,抗压、抗折强度显著提高;煅烧时间为3h时,抗压、抗折强度达到最大值,绝干状态下抗压、抗折强度分别达到20.60MPa、6.90MPa,吸水饱和状态下抗压、抗折强度分别达到9.97MPa、3.55 MPa。The level of calcination process is directly related to the performance and application of gypsum. Calcination temperature, calcination time and interaction were considered to be the major factors, three factors and three levels orthognnal experimants was designed to study the influence of these factors on the gypsum block compressive strength and flexural strength. The results show that： When the calcination temperature was 350,compressive strength and flexural strength were significantly improved. When the calcination time was 3h, compressive strength and flexural strength reached the maximum, the maximum of the absolute drying compressive strength, flexural strength was 20.60MPa,6.90MPa respectively, the maximum of the absolute saturation compressive strength and flexural strength were 9.97MPa,3.55MPa.

关 键 词：脱硫石膏 煅烧 正交实验 极差分析 方差分析 

分 类 号：TD876.1[矿业工程—非金属矿开采] TF046.2[矿业工程—矿山开采]