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Single-, double-spiral classifier
spiral classifier is the use of different particle size of minerals in aqueous media with different velocity for grain size classification of the mineral processing equipment. After a finely ground mineral through spiral classifier, can get the overflow slurry containing fine-grained and coarse-grained sand back to the two products. Spiral grader made simple, stable, reliable, easy to operate, easy to form with the mill closed, will return to re-grit grinding. It is widely used in metal mining, non-metallic mineral beneficiation process of the particle size classification, can be used as washing, off mud and other operations.
This machine can be divided into high weir type, and immersed, and by the number of spiral classifier spiral into single and double spiral classifier. Device structure and working principle
in the concentrator for the closed circuit composed of the same mill work classifier, grit needed to enhance the transport of the body, so these points class machine known as the mechanical grading machines, in fact, by the classification process is still carried out in different particle settling velocity. In addition to major mechanical grading machine as a grinding auxiliary equipment for grading and inspection of pre-classification, but also sometimes used for washing ore containing clay and mud of the mine will be off and dehydration. According to the different forms of mechanical transport grit, mechanical grading machines can be divided into spiral classifier, rake classifier, and classification of floating slot machine. One spiral grader made simple, easy, grading tank with a larger tilt angle for ease of gravity with the grinding machine to connect, so the application of the more common. Although other forms of grading machines are still used in China, but has stopped manufacturing. Spiral classifier shape is a rectangular chute, bottom inclination of 12
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