The reasons as follows, first of all, the placid chute curve and small inclination angle slow down the flow speed, and weak the fluidity, that easy to cause minerals deposition, especially in the middle-lower part of the mill while mineral preliminary separating. 

Secondly, unreasonable parameter. The difference between longitudinal dip angles may be an important cause of silting. Thirdly, the determination of mill pitch is key to improve the dressing efficiency of different mill processing stages.

Therefore, it is necessary that carrying out the comparison experimental by different chute pitch, 800mm, 840mm, 900mm, 940mm, 980mm.1 Mineral processing flowIn brief, grinding - size classification - ultrafine vertical mill - magnetic separation -flotation.

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