Spiral classifier with different proportion of solid particles in the liquid precipitation rate of different principle, to wash the mixture of ore, grading.

螺旋分级机借助固体颗粒的比重不同而在液体中沉淀的速度不同的原理，对矿石混合物进行洗净、分级。

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The mixture ratios mainly including the proportion of Lime and Fly-ash, aggregate and grading collocation and the cement parameter are found out through orthogonal experiment.

通过正交试验，找到二灰碎石各种材料的用量比例，主要是二灰内比、碎石比例和级配、水泥掺量等与结构强度、横缝出现情况的关系。

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