Screw Classifier

Simple structure
Reliable operation
Convenient maintenance
Low cost, high efficiency

E-mail: sales@hxjq.com

Overview

Classification and Application Scope

The screw classifier is also called spiral classifier. There are mainly four types of classifiers, namely high weir single spiral classifier, high-weir dual spiral classifier, sinking single spiral classifier and sinking dual spiral classifier.

The classifier can form a closed circuit with the ball mill for distributing the ores, grading the ores and fine mud in the gravity mills, grading slurry in the metal ore dressing procedure or for desliming and dehydrating in ore dressing process.

Features

1. Simple structure

2. Reliable operation

3. Convenient maintenance

4. Low cost

5. High efficiency

Working Principle

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.

The Structure

The classifier is composed of the transmission device, the spiral, the trough, the lifting mechanism, and the lower bearings (bush) and the discharge valve.

Technical Data

Model	Spiral Diameter (mm)	Trough Length (mm)	Spiral rotate speed (r/min)	Processing capacity（t/d）		Motor Power （kw）		Dimensions （mm≤）			Total weight （t）
Model	Spiral Diameter (mm)	Trough Length (mm)	Spiral rotate speed (r/min)	Sand -return	Overflow	For driving	For lifting	Length	Width	Height	Total weight （t）
FG-3	300	3000	12-30	80-150	20	1.1	----	3850	490	1140	0.7
FG-5	500	4500	8-12.5	135-210	32	1.1	----	5430	680	1480	1.9
FG-7	750	5500	6-10	340-570	65	3	----	6720	980	1820	3.1
FG-10	1000	6500	5-8	675-1080	110	5.5	----	7590	1240	2380	4.9
FC-10	1000	8400	5-8	675-1080	85	7.5	----	9600	1240	2680	6.2
FG-12	1200	6500	4-6	1170-1870	155	7.5	2.2	8180	1570	3110	8.5
FC-12		8400		1170-1870	120	7.5	2.2	10370	1540	3920	11.0
2FG-12		6500		2340-3740	310	15	4.4	8230	2790	3110	15.8
2FC-12		8400		2340-3740	240	15	4.4	10370	2790	3920	17.6
FG-15	1500	8300	4-6	1830-2740	235	7.5	2.2	10410	1880	4080	12.5
FC-15		10500		1830-2740	185	7.5	2.2	12670	1820	4890	16.8
2FG-15		8300		2280-5480	470	15	4.4	10410	3390	4080	22.1
2FC-15		10500		2280-5480	370	15	4.4	12670	3370	4890	30.7
FG-20	2000	8400	3.6-5.5	3290-5940	400	11-15	3	10790	2530	4490	20.5
FC-20		12900		3210-5940	320	11-15	3	15610	2530	5340	28.5
2FG-20		8400		7780-11880	800	22-30	6	11000	4600	4490	35.5
2FC-20		12900		7780-11880	640	22-30	6	15760	4600	5640	48.7
FG-24	2400	9130	3.67	6800	580	15	3	11650	2910	4970	26.8
FC-24		14130		6800	490	18.5	4	16580	2930	7190	41.0
2FG-24		9130		13600	1160	30	6	12710	5430	5690	45.8
2FC-24		14130		13700	910	37	8	17710	5430	8000	67.9
2FG-30	3000	12500	3.2	23300	1785	40	8	16020	6640	6350	73.0
2FC-30	3000	14300	3.2	23300	1410	----	----	17091	----	8680	84.8

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