FL Spiral Classifier

Spiral classifier, also called screw classifier, is widely used for distributing ore in the close circuit with ball mill, grading ore and fine slit in the gravity mill, grading granularity in the flow of metal ore-dressing and de-s and dehydrating in the washing.

According to the principle that different grains are with different specific gravity and sedimentation rate in the liquid, the fine ore flows in the water and the coarse ore sinks in the bottom. The classifier that has machine grading by discharging from the top can filtrate the materials and send coarse materials to the feeding mouth and discharge the fine material from the pipe.

Two Types Of Spiral Classifier

According to the spiral blade at the flooding end, there are two types spiral classifier-high weir type and immersed weir type.

1. High weir type: the top side of spiral blade is higher than the flooding level and the center of the blade is lower than the flooding level. This type is used for classification of ore with flooding size between 0.83-0.15.
2. Immersed weir type: the whole spiral blade is immersed in the flooding level of the flooding end. The type is used for classification of ore with flooding size between 0.15-0.07mm.

Spiral Classifier Appliciation

Our spiral classifiers are widely used in the distribution 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.

FL Spiral Classifier Benefits

1. Simple structure and easy to maintain
2. Easy operation and stable performance
3. Large volume with buffering and conveying effect, better for grinding work.
4. Gravity connection with Ball mills,slurry pump conveying is not necessary.

Technical Data

FL spiral classifier

Type	Model	Specification	Spiral diameter(mm)	Ratoary Speed(r/min)	waterTank		Slant Angle	Capacity		Driving Motor	Elevating Motor	Weight
					Length (mm)	Width (mm)	(°)	Overflow	Returning	Power (kw)	Power (kw)	(T)
High weir single screw	FLG-5	φ500	500	8-12.5	4500	555	14-18.5	32	143~261	1.1		1.6
	FLG-7	φ750	750	6-10	5500	830	14-18.5	65	256~564	3		2.9
	FLG-10	φ1000	1000	5-8	6500	1112	14-18.5	85	473~1026	5.5		4.4
	FLG-12	φ1200	1200	5-8	6500	1372	14-18.5	155	1170~1600	5.5	1.5	8.8
	FLG-15	φ1500	1500	4-6	8265	1664	14-18.5	235	1140~2740	7.5	2.2	11.68
	FLG-20	φ2000	2000	3-3.5	8400	2200	14-18.5	400	3890~5940	11or15	3	20.45
	FLG-24	φ2400	2400	2.5-4	9130	2600	14-18.5	580	6800	8.5	3	25.65
	FLG-30	φ3000	3000	3.2	12500	3200	14-18.5	890	11650	22	4	37
High weir double screw	2FLG-12	φ1200	1200	6	6500	2600	14-18.5	310	2340~3200	5.5×2	1.5×2	15.84
	2FLG-15	φ1500	1500	2.5,4.6	8250	3200	14-18.5	470	2280~5480	7.5×2	2.2×2	22.1
	2FLG-20	φ2000	2000	3.6-5.5	8400	4280	14-18.5	800	7780~11880	11×2	3×2	36.4
	2FLG-24	φ2400	2400	3.6-7	9130	5100	14-18.5	1160	13600	2×18.5	3×2	45.874
	2FLG-30	φ300	3000	3.2	12500	6300	14-18.5	1785	23300	2×22	4×2	73.03
Immerged single screw	FLC-10	φ1000	1000	5	8400	1112	14-18.5	75	473~1026	5.5	0.4	6
	FLC-12	φ1200	1200	5-6.7	8400	1372	14-18.5	120	1170~1630	7.5	2.2	11.02
	FLC-15	φ1500	1500	2.5-4.6	10500	1664	14-18.5	185	1830~2740	7.5	2.2	15.34
	FLC-20	φ2000	2000	3.6-5.5	12900	2200	14-18.5	320	3290~5940	11or15	3	29.06
	FLC-24	φ2400	2400	3.6	14130	2600	14-18.5	455	6800	18.5	4	37.267
	FLC-30	φ3000	3000	3.2	14300	3200	14-18.5	705	11650	30	4	43.5
Immerged double screw	2FLC-12	φ1200	1200	6	8400	2600	14-18.5	240	2340~3260	7.5×2	1.5×2	19.61
	2FLC-15	φ1500	1500	2.5-4.6	10500	3200	14-18.5	370	2280~5480	7.5×2	2.2×2	27.45
	2FLC-20	φ2000	2000	3.6-5.5	12900	4280	14-18.5	640	7780~11880	11×2	3×2	50
	2FLC-24	φ2400	2400	3.6	14100	5100	14-18.5	910	13608	2×18.5	4×2	65.283
	2FLC-30	φ3000	3000	3.2	14300	6300	14-18.5	1410	23300	2×22	4×2	84.87