Spiral Classifier

Spiral Classifier

Energy saving
Heavy duty, rugged construction
Powerful self-contained spiral lifting device
Continuous spiral raking
Optional automatic lubrication system;

Spiral Classifier, which are also called spiral concentrators, are gravity devices that separate minerals of different specific gravity according to their relative movement in response to gravity, centrifugal force and other forces in the fluid medium.
The classifier is grading equipment, according to the principle that solid particles size and proportion are different, thus the settling velocity in liquids is different, fine mineral particles floating in the water to overflow out, the crude ore particles settling to the bottom, then discharged by the spiral into the upper part, to carry out grading.

It is able to grade and filter the material which grinds to powder by grinding mill, then use of helix vane, send the coarse material into mill feed mouth, and filter out the fine material discharged from the overflow pipe

Model DL2000 DL1500 LL1200 LL900
External diameter (mm) 2000 1500 1200 900
Inner diameter (mm) 360 250 220 180
Screw distance (mm) 1200 900-675 720/540 540/360
Ratio (scroll distance/diameter) 0.6 0.6 0.6/0.45 0.6/0.4
transverse obliquity (°)
Star 2-4 2-4 2-4 2-4
Turn 3.5 4 4/5 4/5
Feeding size (mm) 0.4-1 0.03-1 0.03-0.3 0.03-0.3
Feeding thickness (%) 20-45 30-45 30-50 30-50
Processing capacity (t/h) 15-40 8-16 4-6 2-3
Area (m2) 5.7 3.3 2 1.2
Height (mm) 6.6-8 5.5 5.23 3.2

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