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Spiral Classifier

Spiral Classifier

  [ Introduction ]
spiral classifier is designed to provide the most effective pool area and overflow velocity requirements.

If you have any questions or requirements, please call us or send email to  info@hongjigroup.com

Hongji Product Introduce

Spiral classifier, which can also be called spiral separator, is one of the ore dressing equipment which classifies the materials using the principle that different solid materials have different settlement speed in the liquid due to the difference in proportion. Spiral classifier is also called classifier for short. The classifiers can be divided into high weir type, single and double spiral, and immersed single spiral and double spiral type.

The screw classifiers are widely used in the separation of ore in closed circuits with ball mills, grading ore and fine slit in gravity mills, grading granularity and flow of metal ore-dressing, and de-sliming and dehydrating in washing. It has such features as simple structure, reliable working and convenient operation.

Structure of China Spiral Classifier

The spiral classifier is mainly composed by driving device, spiral part, chute, lifting device, lower bearings (bush) and the discharge valve.

Working Principle of Ore Spiral Classifier

According to the principle that different particle sizes with different proportion have certain terminal velocity, the fine particles float on the water and overflow out while the coarse particles sink to the bottom and then they will be pushed upward and discharged. The powders will be filtered, with the substandard particles screwed into the feeding port by the spiral vanes and the fine ones discharged from the overflow pipe. The head of the screw axis and the shaft adopt the pig iron cover, which is wear-resisting and durable. There are manual and electric lifting devices separately.

Main technical parameters:

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



All Rights Reserved : Henan Hongji Mine Machinery CO., LTD.     Add: No.18, No.668 (Hongji Industrial Park), West Zhongyuan Road, Zhengzhou, China
Phone / Fax : 86-371-67662768 / 86-371-67668558     Email : info@hongjigroup.com