air classifier in combination with grinding machine

Air Classifier Overview

Air classifier can precisely control the range of grading particle size and provide high-quality grading effect, which is suitable for the treatment of micro-fine particles. Through the joint action of airflow and grading rotor, the air classifier has high grading efficiency, precision and stepless adjustability, which is suitable for the treatment of various complex materials, and can effectively improve the quality and production efficiency of products.

Working Principle of Air Classifier

1. Based on the kinetic principle of airflow, the material enters the grading flow field under the action of airflow. The airflow passes through the lower part of the classifier and brings the material to the area of cage-shaped turbine rotor. Under the high speed rotation of the turbine rotor, the centrifugal force throws the large particles to the inner wall of the classifier, which is then shunted to the outlet of the coarse material and discharged. Meanwhile, the fine particles are guided by the airflow through the turbine rotor and discharged from the fine powder outlet after further screening.
2. By adjusting the rotating speed of the turbine and the secondary air volume of the airflow, the air classifier can flexibly control the particle size distribution of the product. The fine powder undergoes secondary classification in the classification process to ensure a finer classification effect. The fine powder is collected through cyclone collector, and the material which can not be collected is cleaned up by electric pulse bag duster.

Characteristics of Air Classifier

• A wide range of grading size: the range of grading size of air classifier is adjustable, usually between 2 microns and 100 microns, and the finished product size can be adjusted steplessly according to the need.
• High grading efficiency: the use of advanced grading rotor design, low resistance within the turbine, sorting efficiency of up to 95% or more, to ensure efficient grading of materials.
• Accurate particle size control: turbine speed can be adjusted by frequency control, flexible adjustment of the finished product size, to ensure that meet different production requirements.
• Strong adaptability: suitable for micron-level dry powder material fine classification, able to deal with various forms of granular materials, such as spherical, flaky and needle-like.
• Energy saving and economy: through a number of self-splitting classifier in series, can be composed of multi-stage grading system, improve the grading efficiency and reduce the investment in equipment, has a high cost-effective.
• Environmental protection design: fully enclosed negative pressure operation mode, to avoid dust spillage, in line with environmental protection requirements, to reduce the pollution of the production environment.
• Automatic control: equipped with PLC automatic program control system, simplify the operation process, a key start and stop more convenient.

Advantages of Air Classifier

• High precision classification: fine particle size control, product size range from 2 microns to 100 microns stepless adjustment, to meet the requirements of different products.
• High efficiency classification: adopting new type of classification rotor design, the classification efficiency can be as high as 95% or more, optimizing the classification effect.
• Strong flexibility: the turbine speed and secondary air volume can be adjusted to adapt to the production of different particle size requirements.
• Environmental protection and energy saving: the operation of the fully enclosed negative pressure system avoids dust leakage, which is in line with environmental standards, and the operation process is highly efficient and energy-saving.
• Automatic operation: PLC control system realizes automatic management, easy operation and reduces manual intervention.
• Inert gas protection: for flammable and explosive and easy to oxidize material, it can be graded under inert gas environment to ensure safe production.

Application Areas of Air Classifier

• Chemical industry: used to classify all kinds of chemical powders and additives, to ensure that product quality meets the high standard requirements.
• Pharmaceutical industry: In the process of drug manufacturing, the air classifier can classify fine powder to ensure the purity of the drug and uniform particle size distribution.
• Mineral and metallurgical industry: air classifier is used for grading ores and metal powders to improve the precision and quality of raw materials.
• Food and feed: In food and feed production, fine grading helps to improve the taste of products and the uniformity of nutrients.
• Electronic materials and new materials: used for high precision powder grading process, such as for battery materials, catalysts and other fields, to ensure the production of high-quality materials.