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Spiral Classifier

Spiral Classifier

Introduction:Spiral Classifier or spiral sand washer equipped with ball mill as a closed cycle split ranging system are widely used by the dressing plant to distribute the mineral sand. The screw classifiers has simple structure, reliable work, convenient operation, etc.

Spiral Classifier Overview

Spiral Classifier or spiral sand washer equipped with ball mill as a closed cycle split ranging system are widely used by the dressing plant to distribute the mineral sand, or it is used by the gravity mill to grade ore and fine clay, to realize the size grading of ore pulp during the metal beneficiation process and to do desliming and dehydration during the ore washing process. The screw classifiers has simple structure, reliable work, convenient operation, etc.

The Spiral Classifier is widely used in the concentrator. Ore spiral classifier can also used to grade ore and fine mud in gravity concentrator, and used for desliming, dehydration and etc. in washing operation. It's applied to iron, tin, tungsten, tantalum, niobium, gold, coal, monazite, rutile, zircon and other metal, nonmetal minerals with enough specific gravity dispersion of granularity ranged from 0.02 to 0.3mm.


Working Process Of spiral classifier

The principle used in spiral classifier is that different sizes of crushers have different weights, so their sedimentation rates are also different. In the working process, fine ore grains float on the surface of water, and rough grains sink on the bottom of the cell. Screw grader can classify materials from mill, and then bring the rough grains to the entrance mouth of mill with the help of flights, and discharge the fine ore grins though pipe. The pedestal spiral classifier is made of box iron. The body is made of welding steel plates. The faucet and spindle nose of screw shaft are made of pig iron set which is wear-resisting durable. The take-up sets include two types power-driven and manual operation.


Parameter of spiral classifier

Model
Spiral diameter(mm)
Trough length(mm)
Spiral rotation speed(r/min)
Capacity(t/d)
Power(kw)
Weight
(t)
Return sand
Overflow
Driving
Flifting
FG7.5
750
5500
6-10
340-570
65
3.0
Manual
2.7
FG10
1000
6500
5.0-8.0
675-1080
110
5.5
Manual
4.43
FG12
1200
6500
5.0-8.0
1170-1870
155
5.5
1.5
8.7
FG15
1500
8400
4.0-6.0
1830-2740
235
7.5
2.2
12.5
FG20
2000
8400
4.0-6.0
3240-5400
400
11
2.8
20.5
FG24
2400
9210
3.6
4650-7450
580
15
3.0
25.6
FG30
3000
1250
3.2
11625
890
22
4.0
37.7
2FG12
1200
6500
5.0-8.0
2340-3740
310
5.5x2
1.5x2
14.0
2FG15
1500
8400
4-6.0
3660-5480
470
7.5x2
1.5x2
21.1
2FG20
2000
8400
3.0-5.5
7780-11880
800
11x2
2.8x2
36.5
2FG24
2400
9210
3.6
13600
1160
15x2
3x2
46.8
2FG30
3000
12500
2.0-3.2
14600-23400
1785
22x2
4x2
73.0

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