The spiral classifier has poor grading accuracy, which can mix coarse and
fine quartz sand and affect the quality of the finished product. These methods
can help you improve it.
Firstly, adjust the speed of the spiral blades. If the speed is too fast, the
sand will be quickly lifted and discharged, making it difficult to fully
classify. If the speed is too slow, it will result in low classification
efficiency. Adjust the speed reasonably according to the particle size of the
sand and gravel.
Secondly, adjust the height of the overflow weir. If the overflow weir is too
high, coarser sand and gravel will mix into the overflow, while if it is too
low, fine sand will be discharged along with the settling sand. Adjust it to the
appropriate height according to the grading requirements.
Then control the ore concentration. If the slurry concentration is too high,
the particle settling speed will slow down and the grading effect will
deteriorate. If the concentration is too low, the grading efficiency will be
reduced. Control the slurry concentration within a reasonable range.
Finally, regularly clean the accumulated materials in the tank to avoid sand
and gravel accumulation affecting the grading process and ensure smooth
operation of the equipment.
Proper parameter adjustment and regular maintenance can effectively improve
the classification accuracy of the spiral classifier and ensure the quality of
quartz sand products.