Spiral chute is an important mineral processing machinery and equipment; the correct operation, the production has important significance. In order to make the spiral chute normal operation, in the slurry given into the spiral chute should be strictly before the slag treatment, so as to avoid large particles and impurities accumulating on the spiral groove surface, destroying the sorting.

Practice has proved that, as long as the volume of ore given a constant amount of ore concentration fluctuations within a certain range of the selection results have little impact. The main process parameters affecting the spiral chute sorting is to give the volume of ore and to give the concentration of ore. The stability of the feeding volume is more important than the stability of the feeding concentration.

1. Sorting process is stable and easy to control. The volume of ore feeding is 1.2-1.8 cubic meters per hour per head of LL-900 and 2.5-3.5 cubic meters per hour per head of LL-1200. The size of the volume of ore can change the distribution characteristics of minerals along the width of the spiral groove, to control the stability of the allowable fluctuation range should be less than ± 5%, generally using constant pressure to the ore.

2. The concentration of ore allowed to change a wide range, generally 30% -60%. Roughing ore concentration can generally be 30% -50%, concentration of concentrate can be selected in the range of 40% -60%. Selection effect is similar, in order to choose a high concentration is appropriate, in order to improve the handling capacity of the equipment.

3. The operation of the spiral groove should always check whether there is a buildup above the phenomenon, found that the buildup should be cleaned up in a timely manner. Every shift to wash the trough surface with water once to remove the debris accumulated on the trough surface, to ensure the normal flow of ore flow.

4. The spiral chute should also pay attention to the spiral chute after the ore flow is full of the entire spiral groove surface, if the phenomenon is found to have leaning out of the ore flow must try (such as water flushing, etc.) to correct the phenomenon.

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