锡石多金属硫化矿微波助磨研究
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摘要
从微波选择性加热潜力出发,研究了锡石多金属硫化矿的微波吸收效果及其微波辅助加热预处理对磨矿结果的影响,考察了矿石微波加热预处理前后磨矿产品的粒度分布、金属分布等指标的变化,旨在探索锡石多金属硫化矿的微波加热辅助磨矿新途径。结果表明:锡石多金属硫化矿的主要矿物的吸波能力存在显著差异,其中脆硫锑铅矿的吸波能力最强,其次是黄铁矿,再次是锡石,闪锌矿和脉石矿物的吸波能力最差;物料加热预处理后采用水快速冷却后的磨矿效果比自然慢冷好。
Based on the microwave selective heating potential, the microwave absorption effect of the cassite polymetallic sulfide ore and the effect of microwave-assisted heating pretreatment on grinding were studied. The changes in indicators such as particle size distribution and metal distribution of the ore products before and after the microwave heating pretreatment were investigated to explore new ways of microwave heating-assisted grinding of cassiterite polymetallic sulphide ore. The results showed that there are significant differences in the absorbing ability of the main ore minerals of the cassiterite polymetallic sulphide ore. Among them, jamesonite has the strongest absorbing ability, followed by pyrite and cassiterite. The absorbing ability of sphalerite and gangue minerals are the worst. After the material is heated, the grinding effect of rapid cooling with water is better than that of natural cooling.
Based on the microwave selective heating potential, the microwave absorption effect of the cassite polymetallic sulfide ore and the effect of microwave-assisted heating pretreatment on grinding were studied. The changes in indicators such as particle size distribution and metal distribution of the ore products before and after the microwave heating pretreatment were investigated to explore new ways of microwave heating-assisted grinding of cassiterite polymetallic sulphide ore. The results showed that there are significant differences in the absorbing ability of the main ore minerals of the cassiterite polymetallic sulphide ore. Among them, jamesonite has the strongest absorbing ability, followed by pyrite and cassiterite. The absorbing ability of sphalerite and gangue minerals are the worst. After the material is heated, the grinding effect of rapid cooling with water is better than that of natural cooling.
引文
[1]崔礼生,谢文清.矿物的微波处理[J].中国粉体工业,2008,6(6):20-23.
[2] Kingman S W,Vorster W,Rowson N A. The influence of mineralogy on microwave assisted grinding[J]. Minerals engineering,2000,63(2):313-327.
[3] Waters K E,Rowson N A,Greenwood R W. Characterising the effect of microwave radiation on the magnetic properties of pyrite[J]. Separation purification technology,2007,56(2):9-17.
[4]Vorster W,Rowson N A,Kingman S W. The effect of microwave radiation upon the processing of neves corvo copper ore[J]. International journal of mineral processing,2001,63(3):29-44.
[5]Omran M.,Fabritius T.,Abdel-Khalek N.,et al. Microwave assisted liberation of high phosphorus oolitic iron ore[J].Journal of minerals and materials characterization and engineering,2014,2(5):414-427.
[6]Omran M.,Fabritius T.,Mattila R. Thermally assisted liberation of high phosphorus oolitic iron ore:A comparison between microwave and conventional furnaces[J]. Powder technology,2015,269:7-14.
[2] Kingman S W,Vorster W,Rowson N A. The influence of mineralogy on microwave assisted grinding[J]. Minerals engineering,2000,63(2):313-327.
[3] Waters K E,Rowson N A,Greenwood R W. Characterising the effect of microwave radiation on the magnetic properties of pyrite[J]. Separation purification technology,2007,56(2):9-17.
[4]Vorster W,Rowson N A,Kingman S W. The effect of microwave radiation upon the processing of neves corvo copper ore[J]. International journal of mineral processing,2001,63(3):29-44.
[5]Omran M.,Fabritius T.,Abdel-Khalek N.,et al. Microwave assisted liberation of high phosphorus oolitic iron ore[J].Journal of minerals and materials characterization and engineering,2014,2(5):414-427.
[6]Omran M.,Fabritius T.,Mattila R. Thermally assisted liberation of high phosphorus oolitic iron ore:A comparison between microwave and conventional furnaces[J]. Powder technology,2015,269:7-14.