世界科技研究与发展
世界科技研究與髮展
세계과기연구여발전
WORLD SCI-TECH R & D
2009年
6期
1104-1108
,共5页
万琳辉%曹平%黄永恒%汪亦显%仵锋锋
萬琳輝%曹平%黃永恆%汪亦顯%仵鋒鋒
만림휘%조평%황영항%왕역현%오봉봉
高粘性铝土矿%流动性%结拱堵塞%数值分析%助流技术
高粘性鋁土礦%流動性%結拱堵塞%數值分析%助流技術
고점성려토광%류동성%결공도새%수치분석%조류기술
highly viscous bauxite%flowability%arch and blockage%numerical analysis%flow-aiding technology
利用力学理论、室内放矿模拟实验及数值分析,研究了高粘性铝土矿在矿仓内矿石结拱堵塞的机理、影响矿仓内矿石流动性的主要因素.研究表明:矿石含水量、漏斗壁面摩擦系数及装矿量为影响矿石在矿仑内流动性的主要因素.根据研究结果,提出了一种新的矿仓助流技术.经现场工业试验研究表明:该助流技术能有效解决高粘性铝土矿在矿仑内结拱堵塞的问题.
利用力學理論、室內放礦模擬實驗及數值分析,研究瞭高粘性鋁土礦在礦倉內礦石結拱堵塞的機理、影響礦倉內礦石流動性的主要因素.研究錶明:礦石含水量、漏鬥壁麵摩抆繫數及裝礦量為影響礦石在礦崙內流動性的主要因素.根據研究結果,提齣瞭一種新的礦倉助流技術.經現場工業試驗研究錶明:該助流技術能有效解決高粘性鋁土礦在礦崙內結拱堵塞的問題.
이용역학이론、실내방광모의실험급수치분석,연구료고점성려토광재광창내광석결공도새적궤리、영향광창내광석류동성적주요인소.연구표명:광석함수량、루두벽면마찰계수급장광량위영향광석재광륜내류동성적주요인소.근거연구결과,제출료일충신적광창조류기술.경현장공업시험연구표명:해조류기술능유효해결고점성려토광재광륜내결공도새적문제.
The mechanism of highly viscous bauxite ores arch and blockage and the main factors influencing the flowability of ores in the silo were studied from mechanics theory,the indoor ore-drawing similarity simulation experiment and numerical analysis. It shows that the water content of ores,friction coefficient of the hopper wall and the loading ores amount are. the main factors influencing the flowability. A new flow-aiding technology was put forward according to the results of research. Through many field industrial tests, it shows the flow-aidiag technology can effectively solve the highly viscous bauxite ores problem of the arch and blockage in silo.