Spiral classifier [Fengde Machinery]

Application of Fengde spiral separator

1. classifying mineral sand with ball mill to form closed cycle in beneficiation plants

2. classifying mineral sand and fine mud in gravity beneficiation plant

3. granularity classifying of ore magma,in the process of metal beneficiation

4. ore washing process for desliming and dewatering

Working principle:

Different solid granularities have different gravity and thus have different dropping speed.  The fine ore granularities floating in the water will overflow and the big ones will sink to the bottom and discharge from the upper part by spiral pushing. It can filter the granularities from the machine and then spin the rough particles to charging part by spiral vane and discharge the fine granularities from the overflow pipe. The base of the machine adopts a channel steel and the body adopts welded steel plate. The water inlet of spiral axle and axle head adopt pig iron cover for wear proofing and long life operation. The lifting equipment has two types, manual control and electric control.

Main benefits of Spiral classifiers:

                    Energy saving

                    Heavy duty, rugged construction

                    Powerful self-contained spiral lifting device

                    Continuous spiral raking

                    Optimal particle size range 800 to 75 microns

Technical parameters of Spiral Classifier

Model	Spiral diameter (mm)	Trough length (mm)	Spiral rotation speed (r/min)	Production capacity (t/d)		Motor power （kw<=）		Machine weight (t)
				Back to sand	Overfall	For driving	For lifting
FG7.5	750	5500	6-10	340-570	65	3.0	HM	2.7
FG10	1000	6500	5.0-8.0	675-1080	110	5.5	HM	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	5.5*2	1.5*2	14.0
2FG15	1500	8400	4-6.0	3660-5480	470	7.5*2	1.5*2	21.1
2FG20	2000	8400	3.0-5.5	7780-11800	800	11*2	2.8*2	36.5
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