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The Method to Improve Spiral Classifier Quality Efficiency

AddTime:17/05/2013
     Analysis on the quality efficiency of the spiral classifier, you first need to understand a concept: quality efficiency. The quality efficiency refers to the percentage of the amount of actual overflow, which accounts for the raw materials of fine-level classification with feed, overflow, small and medium-sized grit particular, and the percentage content of a specific intensity level. Quality efficiency can be regarded as a measure of the spiral classifier for its grading effect.
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The study results are as follows:
1) In the given range of ore flow, ore concentration can be adjusted to improve efficiency. If the pulp density is too large, the interference between the mineral particles will be intensified, and the slurry viscosity will be increased, which gradually thickens the overflow granularity, and grading transfer efficiency will be significantly decreased.
2) The mining flow is an important factor affecting the processing power of the spiral classifier. The greater the flow is, the greater the processing power will be, while the smaller the overflow is, the lower the traffic handling capacity will be.The amount of ore spiral classifier can not blindly increase classifier efficiency when the flow rate is gradually increasing,  therefore, it can not increase the ore flow while ignore the classification efficiency of spiral classifier.
3) The size of the grading area determines the decisive factor affecting the handling capacity and grading granularity of the classifier. When the amount of ore and ore concentration are fixed, adjust the inclination of the spiral classifier. Compared with efficiency of spiral classifier, the change of flow rate in slope with concentration is smaller.
4) The height of the weir is an important factor that affects the classification area. When other conditions remain unchanged, increasing the height of the overflow weir of spiral classifier can get better-quality finished products, so as to improve the efficiency of classification quality.
     These methods can make the transfer efficiency higher 15 percentage than that of the original equipment, which greatly reduces the mineral crushing.
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