Dry Ball Mill With Air Classifier 0.5tph Mineral Grinding Equipment

Dry ball mill with air classifier

1.Product Introduction

The Dry Ball Mill with Air Classifier is an integrated dry-process ultra-fine powder production system that combines a ball mill with an air classifier. It is widely utilized in industrial sectors that demand high precision in powder fineness, purity, and production capacity. By leveraging the synergy between mechanical grinding and aerodynamic classification, this system achieves highly efficient and energy-saving ultra-fine pulverization.

2.Application

This system is ideal for the ultra-fine processing of various non-metallic minerals and chemical raw materials. Key application areas include:

• Mining & Construction Materials: Calcium carbonate (calcite, marble, limestone), quartz, barite, kaolin, talc, bauxite, etc.

• Chemicals & Industrial Materials: Ultra-fine cement, slag, steel slag, alumina, zircon sand, silicon carbide, etc.

• New Energy & Electronics: Lithium-ion battery anode and cathode materials, ceramic powders, electronic-grade silica powder, etc.

• Pharmaceuticals & Food: Pharmaceutical excipients, food additives (such as starch, lactose), etc., requiring high purity levels that meet GMP standards.

3.Working Principle

• Feeding & Grinding: Pre-crushed materials are fed into the ball mill cylinder via a controlled feeding device. The cylinder is filled with steel balls or ceramic grinding media, which pulverize the material through impact and attrition during rotation.

• Air Conveying & Classification: The pulverized material is carried into the classifier by negative pressure airflow. A high-speed rotating classifying wheel generates centrifugal force; fine powder passes through the wheel gaps with the airflow, while coarse particles are thrown against the wall due to higher centrifugal force and fall back into the ball mill for regrinding.

• Collection & Purification: Qualified ultra-fine powder is collected by a cyclone separator and a bag filter. The exhaust gas is purified before discharge, achieving zero dust emissions.

• Closed-Loop Cycle: Coarse powder that does not meet the standards returns to the ball mill via a return pipe, forming a "grinding–classifying–regrinding" closed-loop cycle to ensure stable and uniform product particle size.

4.Advantages 

• High Adaptability: Capable of processing materials of various hardnesses and properties, with excellent tolerance for fluctuations in raw material quality.
• Continuous Production: Designed for 24-hour uninterrupted operation, ensuring high production efficiency.
• Adjustable Fineness: The fineness of the final product is easily controlled by adjusting the steel ball grading, rotation speed, or circulating load.
• Multifunctionality: Supports both dry and wet grinding and can be used in conjunction with drying equipment to save energy and floor space.
• Mature & Reliable Technology: Featuring a relatively simple structure, stable operation, and easy maintenance, it is a time-tested and proven piece of industrial equipment.

5.Technical Specifications

6.Our Solutions