Spiral classifier is a mechanical classification machine based on the principle that the specific gravity of solid particles is different in the speed of precipitation in liquid. During the beneficiation process, the ore needs to be ground to a certain fineness so that the fine-grained useful minerals and gangue can be fully dissociated and separated to achieve separation.
From the technical and economic point of view, the spiral classifier machine plays a very important role in the grinding operation. Spiral classifiers are widely used in dressing plants to form a closed-circuit cycle with ball mills to separate ore sands, or to classify ore sand and fine mud in gravity beneficiation plants, and to classify ore pulp in metal beneficiation processes, and to wash ore desliming, dehydration and other operations during operation(Spiral Classifier for Mining – Baichy Machinery, n.d.).
In the mineral separation process, the ore needs to be ground to a certain fineness so that the useful minerals embedded in fine grains and gangue can be fully dissociated and sorted, and at the same time, excessive grinding should be avoided to prevent sludge from affecting the sorting process. In this case, it is necessary to return the unqualified part of the grinding ore to the mill for cyclic grinding through the classification equipment, and the qualified part of the particle size should be separated out and sent to the sorting operation in time to avoid unnecessary grinding(What Is Spiral Classifier in Mineral Processing? | Mining Pedia, n.d.).
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Reference:
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Spiral classifier for mining—Baichy Machinery. (n.d.). Retrieved June 4, 2025, from https://www.baichy.com/Beneficiation/Spiral_Classifier.html
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What Is Spiral Classifier in Mineral Processing? | Mining Pedia. (n.d.). Retrieved June 4, 2025, from https://www.miningpedia.cn/dressing/what-is-spiral-classifier-in-mineral-processing.html
