Spiral classifier introduction:

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. Advantages are simple structure, reliable working condition and convenient operation.

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. The seat of the machine adopts channel steel and body adopts armor plate and the spiral axle adopts wrought iron, so it’s durable. The lifting equipments have two types, by electricity and hand.

Applicable scope of spiral classifier:

1. Form a closed circulation with the ball grinder for ore-sand separation in the ore separation plant; 

2. Classify ore sand and fine sludge in gravity ore separation plant;

3. Classify the ore pulp according to granularity during the metal ore separation process; 

4. Remove sludge/water at the ore separation process. 

Work principle of spiral classifier:

Spiral classifier mechanically classifies the ore materials through the mechanism of different 

sedimentation speed of solid particle in liquid due to different granularity and specific gravity. 

The fine ore floating in the water overflows out; and the coarse ore sediments on the tank bottom 

and then is pushed upwards by the spiral to be feed the grinding machine. 

Features of Spiral classifier:

Our spiral classifiers have the advantages of simple structure, reliable working and easy operation. 

The seat of the machine adopts channel steel and body adopts armor plate and the spiral axle adopts 

cast iron, so it’s durable. The lifting device has two types, by electricity and hand. 

1. Adjustable weirs

2. Sealed, submerged bearing

3. Optional automatic lubrication system

4. Rough tank and substructure

5. Wide choice of tank design

6. Overflow collection box

7. Wide range of service industries