A new design of foaming agent mixing device for a pneumatic foaming system used for mine dust suppression

查看全文 作　　者：Wang [1,2,3]Deming;Lu [1,2,3]Xinxiao;Wang [1]Hetang;Chen [1]Mingjie

机构地区：[1]School of Safety Engineering,China University of Mining and Technology;[2]State Key Laboratory of Coal Resources and Safe Mining,China University of Mining and Technology;[3]Key Laboratory of Gas and Fire Control for Coal Mines of Ministry of Education,China University of Mining and Technology

出　　处：《International Journal of Mining Science and Technology》索引2016年第26卷第2期,共6页

基　　金：supported by the National Natural Science Foundation of China(Nos.51474216 and 51504249);the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD);the Fundamental Research Funds for theCentral Universities 摘　　要：To overcome the drawbacks of the conventional foam technology used for dust suppression,including large pressure loss,high water pressure and low driving pressure,a new pneumatic foaming system is introduced.Then an original design of foaming agent mixing device is proposed,and its performance is investigated and evaluated under different pressure compensations.Experimental results show that the maximum absorption amount increases by 2.9-6.7 times at a pressure compensation of 0.04-0.2 MPa compared with no pressure compensation.The pressure loss and pressure fluctuation both reduce significantly with increasing pressure compensation.The critical outlet pressure increases by30.4-240%.Field application indicates that the proposed mixing device ensures the reliable addition of foaming agent used for foam dust suppression.The effect of foam on dust suppression is remarkable,and the economic cost of foam is low.Therefore,there is reason to believe that the new mixing device will greatly promote foam technology to be widely used for suppressing dust in underground coal mines. 关键词：抑尘技术混合装置煤矿井下发泡剂设计气动压力损失压力补偿

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A new design of foaming agent mixing device for a pneumatic foaming system used for mine dust suppression

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耦合文献(207)

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