Spiral Classifier

The spiral classifier, also known as the sand washing machine or the spiral sand washing machine, is a classifying device by means of the difference of the solid particle size, the specific gravity, and the sedimentation speed in the liquid. It has the advantages of simple structure, reliable work, convenient operation, high efficiency and energy saving.

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Spiral Classifier

Why FTM Spiral Classifier ?

The classifier is widely used in the ore dressing plant to divert the ore, or to be used in the gravity ore dressing plant to classify the ore and fine mud, the slurry in the metal beneficiation process, and to remove mud and dewater in the washing operation. It can process materials such as quartz stone, gold ore, iron ore, copper ore, ore, pulp, fine mud, cement clinker, pyrrhotite, etc.

According to the number of spirals, the spiral classifier can be divided into a single spiral classifier and a double spiral classifier. The spiral classifier can be made into two types according to different procedures of the spiral blade immersed in the overflow surface of the overflow end. When the top of the spiral blade of the overflow end is higher than the overflow surface, and the spiral center of the overflow end is lower than the overflow surface, and it is mainly used for ore with an overflow particle size of 25-120 mesh; when the spiral blades at the overflow end are all immersed below the overflow surface, it is mainly suitable for ore grading with an overflow particle size of 120-200 mesh.

Technical Data

Model Spiral
Diameter
(mm)
Trough
Length
(mm)
Spiral
rotate
speed
(r/min)
Processing
capacity(t/d)
Motor
Power
(kw ≤)
Dimensions
(mm≤)
Total
weight
(t)
Sand
-return
Overflow For
driving
For
lifting
Length Width Height
FG-3 300 3000 12-30 80-150 20 1.1 ---- 3850 490 1140 0.7
FG-5 500 4500 8-12.5 135-210 32 1.1 ---- 5430 680 1480 1.9
FG-7 750 5500 6-10 340-570 65 3 ---- 6720 980 1820 3.1
FG-10 1000 6500 5-8 675-1080 110 5.5 ---- 7590 1240 2380 4.9
FC-10 8400 675-1080 85 7.5 ---- 9600 1240 2680 6.2
FG-12 1200 6500 4-6 1170-1870 155 7.5 2.2 8180 1570 3110 8.5
FC-12 8400 1170-1870 120 7.5 2.2 10370 1540 3920 11.0
2FG-12 6500 2340-3740 310 15 4.4 8230 2790 3110 15.8
2FC-12 8400 2340-3740 240 15 4.4 10370 2790 3920 17.6
FG-15 1500 8300 4-6 1830-2740 235 7.5 2.2 10410 1880 4080 12.5
FC-15 10500 1830-2740 185 7.5 2.2 12670 1820 4890 16.8
2FG-15 8300 2280-5480 470 15 4.4 10410 3390 4080 22.1
2FC-15 10500 2280-5480 370 15 4.4 12670 3370 4890 30.7
FG-20 2000 8400 3.6-5.5 3290-5940 400 11-15 3 10790 2530 4490 20.5
FC-20 12900 3210-5940 320 11-15 3 15610 2530 5340 28.5
2FG-20 8400 7780-11880 800 22-30 6 11000 4600 4490 35.5
2FC-20 12900 7780-11880 640 22-30 6 15760 4600 5640 48.7
FG-24 2400 9130 3.67 6800 580 15 3 11650 2910 4970 26.8
FC-24 14130 6800 490 18.5 4 16580 2930 7190 41.0
2FG-24 9130 13600 1160 30 6 12710 5430 5690 45.8
2FC-24 14130 13700 910 37 8 17710 5430 8000 67.9
2FG-30 3000 12500 3.2 23300 1785 40 8 16020 6640 6350 73.0
2FC-30 14300 23300 1410 ---- ---- 17091 ---- 8680 84.8

Advantages

1. Adopting frequency conversion control technology, the classifier has simple processing, high processing efficiency and no dust pollution.

2. Compared with other classifiers, the grading wheel speed is reduced by 50% and the service life is increased by 5 to 8 times.

3. The graded granularity is fine, meeting the different needs of customers, and has a high rate of sand return.

4. The maintenance rate is low and the wear resistance is high because of steel base and body.

Service & History

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