hydrocyclone

Product Overview

Hydrocyclone is a kind of high-efficiency centrifugal separation equipment, which is mainly used for the classification, desliming and thickening operation of ore slurry. This equipment realizes the separation of coarse and fine particles through the principle of centrifugal force, which has the characteristics of simple structure, large handling capacity and high efficiency of classification, and has been widely used in the ore dressing process of metal mines.

Structure and working principle

Equipment structure

• Upper structure: cylindrical cylinder, with tangential feeding tube.

• Lower structure: conical separation chamber, with sand sinking nozzle at the bottom.

• Core components: center overflow pipe, wear-resistant lining (rubber/silicon carbide, etc.)

• Specification series: Φ50-Φ660mm various specifications are available.

Working Principle

1. Slurry tangential entry: pressure 0.5-2.5kg/cm², flow rate 5-12m/s.

2. Centrifugal separation: coarse and heavy particles are thrown to the wall of the spiral downward.

3. Graded discharge:

   • Sedimentation: discharged from the bottom sedimentation nozzle

   • Overflow: fine particles form an internal spiral upward flow through the overflow pipe discharge

Performance Characteristics

Advantageous features

• No moving parts, simple and compact structure

• Large processing capacity per unit volume

• Classification efficiency up to 80-90

• Fine grading particle size (up to 37μm or less)

• Low cost, low material consumption

Technical Parameters

Applications

Mineral processing applications

1. Grinding and Classifying Systems

   • Closed Circuit Grinding and Classification

   • Concentrate regrinding and classification

   • Classification efficiency 5-10% higher than spiral classifier

2. Desliming

   • Raw ore desliming before beneficiation

   • Concentrate de-sliming after beneficiation

3. Tailings treatment

   • Tailings damming and classification

   • Pre-treatment of tailings backfill

   • Solve the problem of dam leakage, collapse, etc.

Special Application

• Slurry thickening and dewatering

• Recovery of fine materials

• Circulating water treatment

Application Notes

In the closed-circuit grinding and classification system with a section of mill, it has higher classification efficiency and finer overflow fineness under higher feed concentration, and the classification efficiency is 5-10% higher than that of the commonly used spiral classifier, which is conducive to the improvement of the utilization factor of the mill. According to the requirements of milling capacity, overflow fineness and sediment concentration, the correct selection of suitable specifications and models of cyclone is the prerequisite for achieving the optimal working conditions. We can provide Φ50, Φ75, Φ100, Φ125, Φ150, Φ200, Φ250, Φ300, Φ350, Φ500, Φ660, etc. as single, parallel or tandem units.

When the tailings of the beneficiation plant are sent to the tailings storage for treatment, the fine sand less than 37μm in the tailings should not be used as the material for tailings damming. After using cyclone classification, coarse-grained tailings remain in the dam part, fine-grained grade to the tailing pond tailing movement, fine-grained slurry in the flow process is also natural classification, thin and fine tailings flow process is also natural classification, in the tailing pond tailing then there is a section of the clarified water area, can be utilized as return water. In the whole tail filling process, the use of cyclone pre-graded concentration, so that most of the coarse particles pre-separated down to reduce the subsequent filter load, can achieve better results. The use of cyclone to complete the dam building and filling operation can solve the tailing dam leakage, beach collapse, external drainage exceeding the standard and other problems, can achieve obvious economic and social benefits.

Selection and Service

Equipment Selection

• Selection of specifications according to the requirements of processing capacity, overflow fineness, etc.

• Single, parallel or tandem units are available.

• Wear-resistant parts material can be selected (rubber/silicon carbide, etc.)

Professional services

• Process program design

• Equipment installation and commissioning

• Operation and maintenance training

• Replacement of wear parts