摘要
针对湿法筛分效率低、筛下物品位差,筛分机理不明确等问题,以电磁直线振动筛为研究对象,开展湿法筛分工艺参数对筛分效率作用机制的探究。采用中心复合方法进行四因素(振动频率、振幅、筛面倾角及物料固液比)五水平响应曲面试验,根据试验结果进行各筛分工艺参数独立效应分析,通过多元线性回归方法建立筛分效率数学模型,并进行模型检验。研究结果表明,0.5 mm振幅与45 Hz振频下的筛分效率最高,且筛分效率随筛面倾角的增大而增大,随固液比的增大而减小。研究成果揭示了湿法工艺参数对筛分效率的作用机制,可为湿法筛分工艺的优化提供理论指导。
Aiming at the problems of low efficiency,poor quality of under-sieves,and unclear screening mechanism in wet screening process,taking electromagnetic linear vibrating screen as the research object,the effect mechanism of wet screening process parameters on screening efficiency was studied.The central composite design was used to conduct a five-level response surface experiment with four factors(vibration frequency,amplitude,inclination angle of screen surface and material solid-liquid ratio).According to the experimental results,the independent effect analysis on each screening process parameter was carried out.The mathematical model of sieving efficiency was established by multiple linear regression method and the model was verified.The results show that the screening efficiency is the highest when the amplitude is 0.5 mm and the vibration frequency is 45 Hz,and the screening efficiency increases with the increase of the inclination angle of the screen surface and decreases with the increase of the solid-liquid ratio.This research can provide a reference for the structural optimization design and process parameter optimization of electromagnetic linear vibrating screen.
作者
张泽琳
李标
荆为民
谢向东
龙杰
夏绪辉
ZHANG Zelin;LI Biao;JING Weimin;XIE Xiangdong;LONG Jie;XIA Xuhui(Key Laboratory of Metallurgical Equipment and Control Technology,Wuhan University of Science and Technology,Wuhan,Hubei 430081,China)
出处
《矿业研究与开发》
CAS
北大核心
2023年第1期193-199,共7页
Mining Research and Development
基金
湖北省揭榜制重点研发计划项目(2019AEE015)。
关键词
电磁直线振动筛
湿法筛分
响应曲面试验
筛分效率
Electromagnetic linear vibrating screen
Wet screening
Response surface experiment
Screening efficiency
