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Spiral Classifier

As the important part of beneficiation line, spiral classifiers are designed to provide the most effective pool area and overflow velocity requirements. According to the theory that the deposition rates are quite different because of different solid particles' specific gravity, the spiral classifier is not only able to clean the ground mineral ore, but also separate the particles briefly.

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    Spiral Classifier Advantages

  • Low power consumption;
  • Heavy duty, long working life;
  • Powerful self-contained spiral lifting device;
  • Continuous spiral raking;
  • High classifying efficiency;
  • Wide choice of weir height;
  • Rigid tank and substructure;
Model Spiral Dia(mm) Rotary speed (r/min) Tank Length (mm ) Motor kw Dimenstion
Drive Adust LxWxH (mm)
HC-3 300 12-30 3000 1.1 ---- 3850 490 1140
HC-5 500 8-12.5 4500 1.1 ---- 5430 680 1480
HC-7 750 6-10 5500 3 ---- 6270 980 1820
HC-10 1000 5-8 6500 5.5 ---- 7590 1240 2380
LC-10 8400 7.5 9600 1240 2680
HC-12 1200 4-6 6500 7.5 2.2 8180 1570 3110
LC-12 8400 7.5 2.2 10370 1540 3920
2HC-12 6500 15 4.4 8230 2790 3110
2LC-12 8400 15 4.4 10370 2790 3920
HC-15 1500 4-6 8300 7.5 2.2 10410 1880 4080
LC-15 10500 7.5 2.2 12670 1820 4890
2HC-15 8300 15 4.4 10410 3390 4080
2LC-15 10500 15 4.4 12670 3370 4890
HC-20 2000 3.6-5.5 8400 11-15 3 10790 2530 4490
LC-20 12900 11-15 3 15610 2530 5340
2HC-20 8400 22-30 6 11000 4600 4490
2LC-20 12900 22-30 6 15760 4600 5640
HC-24 2400 3.67 9130 15 3 11650 2910 4970
LC-24 14130 18.5 4 16580 2930 7190
2HC-24 9130 30 6 12710 5430 5690
2LC-24 14130 37 8 17710 5430 8000
2HC-30 3000 3.2 12500 40 8 16020 6640 6350
2LC-30 14300 17091 8680

Basing on years' experience and technology, SBM spiral classifiers are popular at home and abroad. It is widely applied to separate the particles into a number of products graded according to size in the complete closed loop together with ball mill in the mining industry, such as separating light particles from heavy particles in the gravity separation process, separating fine particles and liquid from coarse particles in the metal ore dressing process,and separating the slurry or liquid from solid particles in ore dressing plant.

Pre-formed sectionalized steel flights form a continuous Spiral helix. SBM Spiral Classifiers utilize an increased lead or helix angle to form the continuous high pitch Spiral for greater raking capacity.

Spiral Classifier Working Principle

Two options are provided.

A manual hand wheel for raising and lowering of Spiral assembly by a simple positive action, hand wheel operated screw device.Manual lifting arrangement is usually provided with smaller size range.

Alternatively, spiral assembly can be raised and lowered by a Hydraulic system. Such an arrangement is common for diameter and larger units. The assembly can be provided with a motorized pump as an option for greater operating convenience.

Tank Design Configurations

SBM Spiral Classifier tanks are engineered to provide the most effective pool area and overflow velocity requirements. By combining the proper submergence of the Spiral with one of the tank designs, a wide range of combinations is possible. (Refer to table on the last page. SBM Spiral Classifiers can be tailored to suit your needs.

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