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本文利用Fourier状分析法论述了在通流和塞流破碎条件下,不同玻璃颗粒的混合物的形状差别问题。通流破碎的颗粒较多棱角,且有较大的粗糙度和较复杂的形状。较小的颗粒更细长,具有更复杂和多棱角的外形。由于发现了较小颗粒形状比大颗粒形状更复杂、更不规則和有更高的形状比,因此有人提出,小颗粒对肺部的损害主要原因可能是颗粒的形状引起的。由于细颗粒的形状不规則,所以不能很好地堆放,且有较小的堆比重。在矿物加工设备的操作中,需要描绘出给料、产物和废弃排放物的颗粒形状分布,以便知道形:比如何影响矿物的回收率,从而设计出可以获得最佳回收效果的设备和流程。试验具有重现性,并且已经得知,用于描述颗粒形状分布的傅里叶(Fourier)分析方法是一种研究破碎产物形状的有效且有再现性的手段。
In this paper, Fourier-like analysis is used to discuss the difference in the shape of the mixture of different glass particles under the conditions of through-flow and plug flow. Flow through the broken particles more angular, and have a larger roughness and more complex shape. Smaller particles are slender, with more complex and angular shapes. Because smaller particles are found to be more complex, irregular and higher in shape than larger ones, it has been suggested that damage to the lungs by small particles may be due to the shape of the particles. Due to the irregular shape of the fine particles, they can not be stacked well and have a smaller bulk specific gravity. In the operation of mineral processing equipment, the particle shape distribution of the feedstock, products and waste emissions needs to be described in order to know how the ratio affects the recovery of the minerals and thus the equipment and processes for the best recovery can be devised. The experiments are reproducible and it has been learned that the Fourier analysis method used to describe the shape distribution of particles is an effective and reproducible means of studying the shape of the crushed product.