中国粉体技术2017，Vol.23Issue(4)：1-5,5.DOI:10.13732/j.issn.1008-5548.2017.04.001
正压拉法尔管仓泵气力输送硼钙石固体流量实验研究
Experimental research of positive pressure Laval nozzle bin pneumatic conveying bechilite powder
摘要
Abstract
In view of the high requirement of solid phase quantification for pneumatic conveying in some parts of industrial & agricultural production,a common positive pressure Laval nozzle bin pneumatic conveying system and back feed automatic control system were established.Experiments were carried out in this pneumatic conveying system by transporting bechilite powder.The trend of solid conveying capacity during the conveying process is obtained according to the results of precise weighing sensor test and ultrasonic testing method.Through the comparison of solid flow before and after automatic control,it can be seen that the stable conveying time increases 16～18 s,meanwhile the fluctuation of solid conveying capacity is less than ±8％ in condition of automatic control status.The results show that the automatic control scheme improves the stability of solid flow greatly.关键词
正压拉法尔管式仓泵/气力输送/固体输送能力Key words
positive pressure Laval nozzle bin/pneumatic conveying/solid conveying capacity分类
能源科技引用本文复制引用
段广彬,刘凤,王文志,李金凯,刘宗明..正压拉法尔管仓泵气力输送硼钙石固体流量实验研究[J].中国粉体技术,2017,23(4):1-5,5.基金项目
山东省自然科学基金,编号:ZR2015EL037 （）
山东省科技发展计划,编号:2013GGX10308,2014GGX105007. （）
