High Weir Spiral Classifier

There are four main types of classifiers: high weir single spiral and double spiral, submerged single spiral and double spiral. Classifiers are widely used in ore dressing plants to form a closed-loop cycle with ball mills to separate ore sand, or used in gravity ore dressing plants to classify ore sand and fine mud, to grade ore pulp in metal ore dressing processes, and to desludging and dehydrating in ore washing operations. High weir spiral classifier is a device that uses different settling speeds of solid particles in ore pulp for classification. The classifier has the characteristics of simple structure, reliable operation and convenient operation.

[Water tank length]: ≤3000-14300mm

[Spiral diameter]: 300-3000mm

[Production capacity] 10~1785 t/d

[Product improvement] An automatic lifting device for returning sand is added to the return sand end, thereby eliminating the configuration of the large spoon head of the ball mill, and the ball mill runs more smoothly.

[Application range]: Widely used in ore dressing plants to form a closed-loop cycle with ball mills to separate ore sand, or used in gravity ore dressing plants to classify ore sand and fine mud.

Advantages and characteristics

1. The return sand end adds an automatic lifting device for return sand, and the configuration of the large spoon head of the ball mill is cancelled.

2. It can generally save 1 to 1.5 degrees of electricity per ton of ore.

3. Avoid frequent maintenance of the large spoon head.

4. Reduce the unbalanced impact on the large and small gears of the ball mill.

Working principle

The high weir spiral classifier feeds the ground slurry into the water tank from the feed port located in the middle of the sedimentation area. The slurry classification sedimentation area is located below the inclined water tank. The spiral rotates at a low speed to stir the slurry, so that the fine particles are suspended on the top and flow to the overflow weir to overflow. The coarse particles sink to the bottom of the tank and are transported to the discharge port by the spiral to be discharged as return sand. The position of the overflow weir is higher than the bearing center at the lower end of the spiral shaft and lower than the upper edge of the spiral at the overflow end.

In addition to being used as auxiliary equipment for ore grinding for pre-grading and inspection grading, the high weir spiral classifier is sometimes also used for washing clay-containing ores and desludging and dewatering ore pulp.

Product Parameter