Spiral classifiers are widely used in ore dressing plants and ball mills to classify ore in closed-circuit cycles to obtain ore particles of a certain fineness and improve grinding efficiency.
Application:
limestone, talc, graphite, barite, mica, etc.
Spiral classifier plays a very important role in the grinding operation. The spiral classifier is used in conjunction with the ball mill to form a closed-loop circulation process in the mineral processing operation. The minerals that meet the particle size requirements are discharged from the flow channel end to the lower process flow as finished products, and the coarse sand returns to the ball mill for re-grinding. Spiral classifier is widely used in mineral processing plants.
The spiral classifier is based on the different sizes and specific gravities of solid particles, and thus has different falling speeds. Fine ore particles float on the water surface and overflow, while coarse ore particles sink to the bottom of the trough and are pushed up by the spiral. It can filter the material in the machine and then rotate the coarse particles to the feeding part through the spiral blades, and the fine particles are discharged from the overflow pipe for mechanical classification.
| Model | Spiral diameter(mm) | Speed of Spiral(r/min) | Power (kw) | Slope (°) | Power(KW) | |
| Sand Return (t/h) | Overflow (t/h) | |||||
| FG500 | 500 | 8-12.5 | 6-11 | 32 | 12-18 | 1.1 |
| FG750 | 750 | 6-10 | 11-24 | 65 | 12-18 | 3 |
| FG1000 | 1000 | 5-8 | 25-45 | 110 | 12-18 | 5.5 |
| FG1200 | 1200 | 4-6 | 50-80 | 155 | 12-18 | 7.5 |
| FG1500 | 1500 | 4-6 | 70-115 | 235 | 12-18 | 7.5 |
| FG1800 | 1800 | 2.5-6 | 100-190 | 310 | 12-18 | 11 |
| FG2000 | 2000 | 3.6-5.5 | 160-230 | 400 | 12-18 | 15 |
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