Spiral Classifier Spiral Classifier

Spiral Classifier

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Spiral Classifier

In mineral processing, the spiral 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.

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Working principle

The spiral classifier relies on the principle that the solid particles are different in size and specific gravity, so their sedimentation speed is different in the liquid. The slurry is stirred by spiral rotation at low speed so that fine particles are suspended in the slurry surface and overflow to the overflow weir. Coarse particles sink to the bottom of the tank and are conveyed by the screw to the discharge port to be discharged. Generally, the coarse sand is returned to the ball mill for secondary grinding, that is, the spiral classifier and the ball mill form a closed circuit.

Advantages

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

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

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

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

CUSTOMER CASE OF HXZG

  • 
	  Iron Ore Processing Plant in Nigeria

    Iron Ore Processing Plant in Nigeria

  • 
	  Gold Ore Beneficiation Plant in Tanzania

    Gold Ore Beneficiation Plant in Tanzania

  • 
	  Sand Ore Processing Plant in Zimbabwe

    Sand Ore Processing Plant in Zimbabwe

Technical Specifications

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