JXSC Mineral

sprial classifier

Spiral Classifier

Capacity: 21-1785 T/24h

Moto Power: 3-44 Kw

Spiral Diameter: 300-3000 mm

Process Material: Natural sand, artificial sand, machine-made sand.

Spiral Classifier Overview

Spiral Classifier For Sale
Our Spiral Classifier is available with spiral diameters up to 120″. These classifiers are built in three models with 100%, 125% and 150% spiral submergence with straight side tanks or modified flared or full flared tanks. The single, double or triple pitch spirals are available.

The spiral classifier is one of the size-classifying equipment for the mining industry. It is a kind of equipment for mineral classification based on the principle that the specific gravity of solid particles and the speed of precipitation in the liquid is different. It can filter the material powder from the mill, then screw the coarse material into the mill inlet with the spiral slice, and discharge the filtered fine material from the overflow pipe. Spiral classifier is short for the classifier. The classification machine mainly has the high weir type single screw and the double screw, the sinking type single screw, and the double screw four kinds of classification machines. The classifier mainly comprises a transmission device, a spiral body, a trough body, a lifting mechanism, a lower bearing (Bush), and a discharge valve. Spiral classifier is widely used in mineral processing plants with a ball mill as a closed-circuit circuit to separate the flow of ore sand, or used in gravity concentrators to grade ore sand and fine mud, and metal beneficiation processes to grade the size of ore pulp and washing operations in the desliming hopper, dehydration and other operations.

Structures & Working Principle

Spiral Classifier Structure 

spiral classifier structure
spiral classifier structure

Spiral Classifier Working Principle
The grinded pulp is fed into a tank from the inlet in the middle of settlement region, and the slurry classification sedimentation area is under the inclined tank. The spiral with low-speed rotation stirs the slurry, so that the fine particles rise, and the coarse particles sink to the bottom of the tank. The overflow dam is above the bearing center which is under the screw shaft, and is underneath the overflow end.

Technical Parameters

Model Spiral Diameter (mm) Spiral Speed (r/min) Tank Process Capacity (t/24h) Drive Motor (kw)  Lift Motor (kw)
L(mm) W(mm) Slope(°) Over Flow  Returned Sand
FG-5 Φ500 9.2 3900 560 10.5°-14° 21-75 145-260 3 0
FG-7 Φ750 7.8 5367 830 10.5°-14° 65-154 255-564 3 0
FG-10 Φ1000 7 6500 1110 10.5°-14° 85 473-1026 5.5 0
FG-12 Φ1200 5, 6, 7 6500 1372 10.5°-14° 150 1145-1600 5.5 2.2
FG-15 Φ1500 2.5, 4, 6 8265 1664 14°-18.5° 235 1140-2740 7.5 2.2
FG-20 Φ2000 5.4 8400 2396 14.5°-18.5° 400 5940 15 2.2
FG-24 Φ2400 3.6, 5.4, 6.3 9160 2600 14°-18.5° 580 6800 11/15 2.2
FG-30 Φ3000 3.17 12500 3200 14°-18.5° 890 11650 22 4
2FG-12 Φ1200 5, 6, 7 6500 2620 14°-10.5° 300 2290-3200 5.5 x 2 2.2 x 2
2FG-15 Φ1500 2.5, 4, 6 8265 3200 14°-18.5° 460 2240-5360 7.5 x 2 2.2 x 2
2FG-20 Φ2000 5.4 8400 4296 14.5°-18.5° 800 11880 15 x 2 2.2 x 2
2FG-24 Φ2400 3.6, 5.4, 6.3 9160 5040 14°-18.5° 1160 13600 11 x 2 / 15 x 2 2.2 x 2
2FG-30 Φ3000 3.17 12500 6300 14°-18.5° 1785 23300 22 x 2 4 x 2
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