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Classifier

Classifier

The main four types of screw classifiers are high dam type of single and double helix spiral classifiers and sunk type of single and double helix spiral classifiers. These classifiers are suitable for classifying the ores in the closed circuit recursive-subranging combined with the ball mills in the dressing plant, or classifying the ores and the fine silt in the gravity mill,
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Brief Introduction to HX Classifier

Spiral classifiers, also called screw classifiers are mainly used in ore beneficiation process. According to the different proportion of solid particles, the rate of precipitation in the liquid is also different.

Classifier

Our ore spiral classifier concentrates with good effect. After grinding, the materials will pass through filter, through which the coarse materials will return to ball mill and the fine ore will be discharged from the overflow pipe.

Our China spiral classifiers are designed to provide the most effective pool area and overflow velocity requirements. The proper combination of pool depth, area and spiral construction is important to secure a controlled turbulence in the slurry flow for accurate size separation. The most important thing is that our spiral classifier price is rather reasonable compared with other similar products.

Major Components of Screw Classifier

This kind of Spiral separator is composed of a U trough, spiral, transmission, elevator machine, support bearing, etc. The down flow weir of the high weir type is higher than the lower bearing, but lower than the upper edge of the lower spiral. There is a horizontal long axis with helical blades in the U trough, and a down flow weir designed in the lower place. The transmission is installed in the upper chute; the upper main spiral shaft supports the bearing on the drive frame, while the lower bearing is fixed at the level of the elevator. The elevator is able to make the lower part of the spiral ascend and descend to regulate the distance between the spiral and the bottom of the chute as well as the confirming size of the spiral. Meanwhile, the spiral should be raised up at the time of a stop in order to avoid the desilting burying the spiral that will impinge on starting. The bearings of the main spiral shaft are quite vital parts, due to relatively harsh working conditions; the requirements for the sealing of the bearings are high. At the same time, the operator must strengthen the maintenance.

Main features of Spiral Classifiers

  • Available in three standard spiral pitch sizes
  • A variety of spiral lengths and speeds can be selected depending on the application
  • Three standard tank sizes
  • Three pool depth series
  • Motorized hydraulic, manual hydraulic, and screw lifting device options
  • Reliable drive arrangement
  • Large diameter tubular shaft is supported by upper and lower bearings
  • Cast steel flight arms are short with a large cross-section that will resist big loads without bending
  • Pre-formed steel flight sections bolt to the flight arms
Technical Data
Model
Spiral diameter
(mm)
Spiral rotation speed
(r/min)
Trough length
(mm ≤)
Motor power(kw≤)
Dimensions(L×W×H)(mm≤)
Machine weight
(t)
For driving
For lifting
Length
Width
Height
FG-3
300
12-30
3000
1.1
----
3850
490
1140
0.7
FG-5
500
8-12.5
4500
1.1
----
5430
680
1480
1.9
FG-7
750
6-10
5500
3
----
6720
980
1820
3.1
FG-10
1000
5-8
6500
5.5
----
7590
1240
2380
4.9
FC-10
8400
7.5
----
9600
1240
2680
6.2
FG-12
1200
4-6
6500
7.5
2.2
8180
1570
3110
8.5
FC-12
8400
7.5
2.2
10370
1540
3920
11.0
2FG-12
6500
15
4.4
8230
2790
3110
15.8
2FC-12
8400
15
4.4
10370
2790
3920
17.6
FG-15
1500
4-6
8300
7.5
2.2
10410
1880
4080
12.5
FC-15
10500
7.5
2.2
12670
1820
4890
16.8
2FG-15
8300
15
4.4
10410
3390
4080
22.1
2FC-15
10500
15
4.4
12670
3370
4890
30.7
FG-20
2000
3.6-5.5
8400
11-15
3
10790
2530
4490
20.5
FC-20
12900
11-15
3
15610
2530
5340
28.5
2FG-20
8400
22-30
6
11000
4600
4490
35.5
2FC-20
12900
22-30
6
15760
4600
5640
48.7
FG-24
2400
3.67
9130
15
3
11650
2910
4970
26.8
FC-24
14130
18.5
4
16580
2930
7190
41.0
2FG-24
9130
30
6
12710
5430
5690
45.8
2FC-24
14130
37
8
17710
5430
8000
67.9
2FG-30
3000
3.2
12500
40
8
16020
6640
6350
73.0
2FC-30
14300
---
---
17091
---
8680
84.8
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