Air classifier mill is advanced device that combine equipment for grinding and classifying, it can produce fine powders with specific particle size distributions for different application.
Generally speaking, the performance of мельница с воздушным классификатором is mainly influenced by factors below:
1. Speed of classifying wheel
The rotational speed of classifying wheel is a critical factor that directly affects the particle size distribution. Higher speed can increase separation efficiency and more coarse particles can be ground again. This can ensure that more finer particles are obtained. In contrast, reducing the speed would lead to products with coarser particles.
2. Air flow and velocity
Airflow is essential for transporting materials through the mill. It plays a significant role in final fineness of products. Increasing airflow can make it more quickly for particles passing through grinding chamber, this would reduce grinding time, and particle size would be coarse accordingly. Conversely, lower airflow would give more grinding time, finer particles would be obtained. So, maintaining a constant airflow volume but adjusting airflow velocity through classifying wheel can enhance classification performance.
3. Feed rate
The rate at which material is fed into the mill significantly impacts product fineness. Increasing feed rate can typically results in a coarser product due to insufficient grinding time, while decreasing feed rate can obtain finer particles.
4. Mill Speed
The speed of the mill itself also influences performance. Higher mill speeds can increase impact forces on particles, with finer grinding effect. However, this operation must be balanced with other operational parameters to avoid excessive wear or overheating.
5. Particle size distribution of feed
The initial particle size distribution of the feed profoundly affects classification efficiency. Coarser feed (above 40 microns) is generally easier to classify than finer feed. Feed with defined particle size distribution can enhance separation efficiency and overall performance.
6. Density and shape of particles
Density and shape of particles affect classifying efficiency. Particles with higher density may require different treatment compared with lower density particles. Meanwhile, irregular shape can affect air resistance and flow dynamics within the mill. The interaction between particle shape and airflow can affect classifying efficiency.
7. Content of moisture of feed
High moisture content of the feed can cause agglomeration, and then reduces the efficiency. Controlling moisture content is essential to maintain optimal performance of air classifier mill.
8. Temperature Control
Operating temperatures can influence material properties during grinding and classification. For instance, cooling air can enhance grinding capacity by preventing overheating of heat-sensitive materials.
Заключение
In summary, optimizing the performance of мельница с воздушным классификатором requires balance of factors mentioned above. Understanding how these factors interact will enable operators to achieve required powders with high efficiency and low energy consumption.
Qingdao Epic Powder Machinery Co., Ltd. is a manufacturer specializing in the production of powder processing equipment. Its products include:
– Mill: мельница с воздушным классификатором, ball mill, roller mill, jet mill, vibration mill and impact mill etc.
– Classifier: four series of air classifiers: HTS, ITC, MBS and CTC.
– Modifier: pin-mill modifier, turbo-mill modifier and three-roller modifier etc.
– Вспомогательное оборудование: control cabinet, dust collector and suction fan etc.
– Customers can also customize according to their needs, “one customer one design”.
If you have relevant needs or questions for air classifier mill or other products, please contact staff от Циндао Эпик directly, they are always at your service.
Below are photos of air classifier mills from Qingdao Epic for air classifier mills.
