Air Classifier for Industrial Mineral Processing Applications – Continuous Operation An air classifier is a critical piece of equipment in industrial mineral processing, designed to separate fine and coarse particles based on size, shape, and density using controlled airflow. This technology is widely applied in industries such as mining, ceramics, chemicals, and construction materials, where precise particle size distribution is essential for product quality and process efficiency. Working Principle The air classifier operates by introducing a feed material into a high-velocity airstream within a classification chamber. The centrifugal force generated by a rotating rotor or vanes separates particles according to their aerodynamic properties. Lighter (finer) particles are carried upward by the airflow and collected in a fines outlet, while heavier (coarser) particles are rejected and discharged through a separate coarse outlet. Adjustments to the rotor speed, airflow rate, and feed rate allow for precise control over the cut point (separation size). Key Features for Continuous Operation 1. High Efficiency & Precision – Advanced air classifiers achieve sharp classification with minimal misplaced particles, ensuring consistent product quality. 2. Adjustable Cut Size – The separation size can be easily modified by altering rotor speed, airflow, or feed rate, making it versatile for different minerals. 3. Low Energy Consumption – Compared to mechanical screening, air classifiers offer energy-efficient separation with minimal wear and maintenance. 4. Dust-Free Operation – Enclosed systems prevent dust emissions, improving workplace safety and environmental compliance. 5. Scalability – Available in various sizes to handle small lab-scale batches or large industrial throughputs (up to hundreds of tons per hour). Applications in Mineral Processing - Limestone & Calcium Carbonate – Producing ultra-fine powders for paints, plastics, and paper coatings. - Talc, Kaolin & Silica – Refining particle size for ceramics, cosmetics, and rubber industries. - Fly Ash & Slag – Recycling industrial by-products into construction materials. - Metallic Ores – Pre-concentration before further processing. Advantages Over Mechanical Screening - No screen blinding or clogging issues. - Suitable for ultra-fine separations (sub-10 micron range). - Gentle handling of fragile or heat-sensitive materials. Conclusion Air classifiers are indispensable in modern mineral processing, offering continuous, high-precision classification with minimal downtime. Their ability to handle diverse materials while maintaining efficiency and environmental compliance makes them a preferred choice for industries requiring fine particle control.