Pumice attrition in an air-jet

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• 作者：T.J. Jones^a ; ^b ; ^{t.j.jones@durham.ac.uk} ; J.K. Russell^b ; C.J. Lim^c ; N. Ellis^c ; J.R. Grace^c
• 关键词：Pumice ; Attrition ; Milling ; Ash production ; Fines production model ; ASTM D5757-00
• 刊名：Powder Technology
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：308
• 期：Complete
• 页码：298-305
• 全文大小：698 K
• 卷排序：308

文摘

Attrition test on pumice in an air-jet (ASTM D5757–00) produce substantial fines. Residence time and feed grain size control rates and amount of fines production. Wet collection methods recover total grain size distributions (TGSDs) of run-products. Transient parent-daughter GSDs constrain an attrition model for pumice. A new fine production rate equation is developed with a long residence limit.