Spiral Classifier

Spiral Classifier

The spiral classifier is commonly used incombination with grinding equipment to form a closed cycle system for mineralprocessing. It is ideal for material pre-classification, and is also applicablefor desliming, dewatering, washing, and classification of mineralmaterials. Spiral classifiers can effectively control the final particle sizeof ground materials, improve the grinding efficiency of grinding mills, andreduce over-pulverizing phenomenon.

Usage and Maintenance
Before starting the spiral classifier, please make sure all bolts arefastened tightly and the gear box is filled with lubrication oil, andmeanwhile, be sure that the impurities and other sundries in the water tankshould be cleared up. In addition, before normal operation, the spiral shaft ofthe classifier should be lifted up and allow the classification equipment to operatewithout load for a while. After that, lower down the spiral shaft slowly, andallow the particles in the water tank to move along the spiral bladesgradually. This can effectively extend the service life of the spiralclassifier.

Technical Parameters of the SpiralClassifier

Working Principle of the Spiral Classifier
Based on theprinciple that solid particles with different size and specific gravity willsink at different speeds in liquids, the spiral classifier is able to classifylarge sized and small sized granules. Fine particles will be filtered anddischarged from the overflow pipe, while large size particles will be fed intogrinding equipment again via the rotating spiral blades of the classificationequipment.