摘要
针对现有给料器在低运量下精度受限的问题,依托气流粉碎系统,基于颗粒运动受力分析和刮板迷宫结构几何构造,设计开发了低速高精度刮板式给料器。该给料器的刮板型线设计为阿基米德螺线,确保了颗粒在刮板各处的均匀受力,解决了直线刮板的质量流率不均匀问题。以150μm粒径的石墨颗粒为研究对象,开展不同刮板高度和转速下的给料器性能测试,结果表明该刮板式给料器在1~60 g/h给料范围内具有良好的精度和给料线性度,给料性能满足气流粉碎系统的需求,具有较高的实用性。
Based on the analysis of particle motion and the geometric structure of scraper structure,a low-speed and high-precision scraper feeder applied to the jet mill system is developed to solve the problem of the accuracy limitation of the existing feeder under low feeding volume.The scraper profile of the feeder is designed as Archimedes spiral,which realizes the uniform force of particles throughout the scraper and solves the problem of uneven mass flow rate of linear scraper.By selecting a particle size of 150μm graphite particles as the research object,the feeder performance tests are carried out under different scraper heights and rotating speeds.The results show that the scraper feeder has good accuracy and feeding linearity in the feeding range of 1~60 g/h,and the feeding performance meets the needs of the jet mill system,which has high practicability.
作者
刘雨嘉
宫厚军
吴达岭
彭思凡
桂南
杨星团
姜胜耀
LIU Yujia;GONG Houjun;WU Daling;PENG Sifan;GUI Nan;YANG Xingtuan;JIANG Shengyao(Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 102413,China;Nuclear Power Institute of China,Chengdu 610213,China;Zhejiang Academy of Emergency Management Science and Technology,Hangzhou 310027,China)
出处
《实验技术与管理》
CAS
北大核心
2023年第2期121-126,共6页
Experimental Technology and Management
基金
国家科技重大专项项目(2011ZX06901-003)。
关键词
气流粉碎系统
刮板
给料器
低速高精度
型线
jet mill system
scraper
feeder
low-speed and high-precision
profile
