Your Location: Home > Products > Ore Dressing Machine > Spiral classifier
Spiral classifier

Spiral classifier

Processing ability:770-2800T/24hScrew diameter: 1500~3000mm Overflow quantity:85~1410t/h Rotation rate: 2.5~6r/min Applied materials:Natural sand, artificial sand, machine-made sand, limestone, talc, graphite, barite, mica, kaolin.

Similar Products

Working principle of spiral classifier

The spiral classifier adopts the working theory of different particle sizes and weights leading to different settling velocities. The fine mineral particles overflow and the coarse particles sink to the bottom of screw classifier and then are discharged from the upper end of the tank by the spiral shaft. The screw sand washer or screw classifier can filter the powder materials ground by the grinder and then screw the coarse materials to the receiving port of the grinding machine. Finally the filtered fine materials are discharged from the overflow pipe. The bottom of the spiral classifier is made of box iron and the main frame is welded with the steel board. The water head, shaft head of the spiral shaft is made of pig iron which features strong wear resistance. And there are two kinds of lifting devices: power driven one and manual operated one.

Application and advantages of screw classifier

Spiral Classifier

The spiral classifier or screw sand washer is widely applied by the dressing plant together with the ball mill as the closed cycle or applied to separate ore sand and fine mud by the gravity mill. There are many types of screw classifiers such as spiral separator and screw classifier. The screw sand washer is also used to grade the pulp particles in the metal beneficiation process and to remove mud and water in the ore beneficiation. Fote spiral classifiers have the advantages of simple structure, reliable performance and simple operation.

screw classifier

Technical Parameters

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 6640 8680 84.8

Send Message

Please enter your demand such as Raw material type, Capacity, Feeding material size, Final product size, etc. To become our quality clients will have access to a discount of countract!

  • *
  • *
  • *

Contact us

Address: High and New Industrial Zone, Kexue Revenue, High and New Technology Industrial Development Zone, Zhengzhou, China

Email:vip@sinoftm.com

Copyright© 2013 Fote Heavy Machinery.All rights reserved