Spiral Classifier

Spiral classifier are the main equipment for the classification operation of the mineral processing plant. It is mainly used for ore classification, separation, screening, desliming, and dewatering in sand-washing operations.

Feed Size:500-2000mm
Motor Power:1.1-15KW
Processing capacity:6-400 tph
Material handling: limestone, talc, graphite, barite, mica, kaolin.

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What’s a Spiral Classifier?
Spiral Classifier Application Material
Applications scope:
Working Principle Of Spiral Classifier
Advantages Of Spiral Classifier
Structure
Customer site
Specification
After-sales service

Spiral Classifier

What’s a Spiral Classifier?

Introduction: Spiral classifiers are the main equipment for the classification operation of the mineral processing plant. It is mainly used for ore classification, separation, screening, desliming, and dewatering in sand-washing operations.

The spiral centrifugal classifier has the advantages of strong continuous operation, large processing capacity, low energy consumption per unit output, and convenient maintenance. It can handle particles with a diameter of 1um-10mm.
The horizontal spiral centrifugal classifier adopts the method of wet classification, and its processing capacity can reach 1~20 (m3 slurry) kg/h. It is widely used in minerals, metal powders, chemical raw materials, pigments, fillers, etc.

Types: There are four classifiers: high weir single spiral and double spiral, submerged single spiral and double spiral.

High weir spiral classifier is suitable for coarse particle classification, the maximum size of overflow is generally 0.4~0.15mm;
Submerged spiral classifier is suitable for fine particle classification, the maximum size of overflow is generally below 0.2mm.

Spiral Classifier Application Material

gold ore, iron ore, copper ore, etc.

Applications scope:

metallurgy, mineral processing, chemical industry, etc.

Working Principle Of Spiral Classifier

spiral classifier is based on the principle that the solid particles are different in size and specific gravity, so the settling speed in the liquid is different. Fine ore particles float in the water and overflow, and coarse ore particles sink to the bottom of the tank.
Spiral classifier is widely used in beneficiation plant to match with ball mill to form a closed circuit circulation path to distribute ore sand. Filter the material powder milled in the mill, and then use the spiral piece to screw the coarse material into the ball mill inlet, and the filtered fine material is discharged from the overflow pipe.

Advantages Of Spiral Classifier

The energy consumption of spiral classifier is 50% lower than other classification equipment, and the output is also increased by 50%.
The water tank has a large slope, which is convenient for forming a closed-circuit ring grinding operation with the ball mill, and forms a self-flow sand return.
Simple operating process and stable working status, greatly reducing maintenance costs.
Its spiral structure can ensure a large enough settling area to extend the material suspension time, which is more conducive to the even distribution of materials during the classification process.
Users can adjust the parameters of the spiral classifier according to their needs, such as spiral speed, inclination and outlet size to achieve different classification requirements.

Structure

High spiral classifier operation: the grinded pulp is fed into a tank from the inlet in the middle of settlement region, and the slurry classification sedimentation area is under the inclined tank. The spiral with low-speed rotation stirs the slurry, so that the fine particles rise, and the coarse particles sink to the bottom of the tank. The overflow dam is above the bearing center which is under screw shaft, and is underneath overflow end.

Customer site

Specification

Spiral Classifier

Model	Spiral diameter	Spiral Speed	Water tank			Process Capacity (t/24h)		Drive motor	Lift Motor
	MM	r/min	L (mm)	W(mm)	Slope(°）	Over Flow	Returned Sand	kw	kw
FG-5	Φ500	9.2	3900	560	10.5°-14°	21-75	145-260	3	0
FG-7	Φ750	7.8	5367	830	10.5°-14°	65-154	255-564	3	0
FG-10	Φ1000	7	6500	1110	10.5°-14°	85	473-1026	5.5	0
FG-12	Φ1200	5,6,7	6500	1372	10.5°-14°	150	1145-1600	5.5	2.2
FG-15	Φ1500	2.5,4,6	8265	1664	14°-18.5°	235	1140-2740	7.5	2.2
FG-20	Φ2000	5.4	8400	2396	14.5°-18.5°	400	5940	15	2.2
FG-24	Φ2400	3.6,5.4,6.3	9160	2600	14°-18.5°	580	6800	11/15	2.2
FG-30	Φ3000	3.17	12500	3200	14°-18.5°	890	11650	22	4
2FG-12	Φ1200	5,6,7	6500	2620	14°-10.5°	300	2290-3200	5.5X2	2.2X2
2FG-15	Φ1500	2.5,4,6	8265	3200	14°-18.5°	460	2240-5360	7.5X2	2.2X2
2FG-20	Φ2000	5.4	8400	4296	14.5°-18.5°	800	11880	15X2	2.2X2
2FG-24	Φ2400	3.6,5.4,6.3	9160	5040	14°-18.5°	1160	13600	11X2/15X2	2.2X2
2FG-30	Φ3000	3.17	12500	6300	14°-18.5°	1785	23300	22X2	4X2

After-sales service

Equipment installation and commissioning: professional technical team to guide the installation and commissioning, to ensure that the equipment is put into operation smoothly.
Technical training: provide comprehensive technical training and operational guidance to ensure that you master the equipment operating skills.
Warranty service: the main parts of the equipment enjoy warranty service, so that you can buy worry-free.
Maintenance support: provide fast response maintenance support services to ensure that equipment failures are resolved in a timely manner.
Parts supply: provide original parts supply service to ensure the continuous and stable operation of the equipment.