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The mill and classifier are a correlated set. The effect of classifier has impact on the efficiency of mill. So it is a key point in the mineral separation process to select well the classifying equipment. The spiral classifier can be divided into the single spiral classifier and double spiral classifier according to the spiral axle quantity. It is divided into the high weir type, the low weir type, and the sinking type according to the overflow weir height. This instruction is only for the low weir type and the sinking type. The overflow position of high weir type of spiral classifier is above the center of the lower spiral axle but below the upper part of the overflow spire. It has certain falling area, applicable for classifying rough granules to obtain an overflowing force more than 100mesh. The whole screw of the sinking type of spiral classifier at the overflow end sinks below the liquid surface of the falling section which has a large area and depth. So it is applicable for classifying fine granules to attain an overflow granularity of less than 100mesh.

 

1.Separation of fine particles and liquid from coarse particles

2.Separation of light particles from heavy particles

3.Separation of the particles into a number of products graded according to size

4.Separation of liquid from solid particles

 

                         1.Adjustable weirs

                         2.Sealed, submerged bearing

                         3.Optional automatic lubrication system

                         4.Rigid tank and substructure

                         5.Wide choice of tank design

                         6.Overflow collection box

                         7.Wide range of industries serviced

                         8.Single spiral range from 300 mm to 2 200 mm

                         9.Duplex spiral models 1 500 mm and 2 200 mm

 

 

Main benefits of Spiral classifiers:

       1.Energy saving

       2.Heavy duty, rugged construction

       3.Powerful self-contained spiral lifting device

       4.Continuous spiral raking

       5.Optimal particle size range 800 to 75 microns.

 

 

Model	Spiral diam-eter (mm)	Spiral rotation speed (r/min)	Trough length (mm<=)	Motor power(kw<=)		Dimensions(mm<=)			Weight (t)
				For driving	For lifting	Len-gth	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	1.6
FG-7	750	6-10	5500	3	---	6270	980	1820	2.7
FG-10	1000	5-8	6500	5.5	---	7590	1240	2380	4
FC-10			8400	7.5		9600	1240	2680	6
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
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	25.7
FC-24			14130	18.5	4	16580	2930	7190	41
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
2FC-30			14300			17091		8680	84.8