Spiral Classifier
Introduction
The Spiral Classifier is essential mineral processing equipment designed for solid-liquid separation, particle size classification, and washing in mining and industrial applications. As a leading manufacturer in China, Henan Liming Heavy Industry Science & Technology Co., Ltd. provides high-performance spiral classifiers to enhance the efficiency of ore beneficiation, sand washing, and dewatering processes in various industries.
How Does a Spiral Classifier Work?
The spiral classifier operates based on gravity sedimentation and mechanical conveying principles. Its main components include a spiral shaft, tank, spiral blade, transmission device, and lifting mechanism.
- Ore pulp enters the tank from the feed inlet.
- Coarse particles settle due to gravity and are pushed upward by the rotating spiral for discharge.
- Fine particles overflow from the weir at the top, achieving particle size separation.
- Adjustable spiral speed and tank inclination optimize classification precision.
Applications of Spiral Classifier
Spiral classifiers are widely used in:
- Ore Dressing Plants – For closed-circuit grinding and classification of metal ores (iron, gold, copper, etc.).
- Sand Washing & Aggregate Processing – Removes impurities in artificial sand and gravel production.
- Mineral Slurry Dewatering – Enhances solid-liquid separation in coal, silica, and phosphate processing.
- Industrial Wastewater Treatment – Classifies and recycles fine particles in chemical and construction industries.
Advantages of Liming Spiral Classifier
- High Efficiency – Precise particle size control with adjustable spiral speed.
- Durable Construction – Wear-resistant materials extend service life.
- Low Maintenance – Simple structure with easy operation and minimal downtime.
- Energy Saving – Low power consumption with stable performance.
- Custom Solutions – Supports various models (single/double spiral, high/low weir types).
