• 07 Nov, 2022
• By EPIC Powder
• 2 Comments

How does the air classifier operate to separate the superfine powder? EPIC Powder Machinery

The air classifier can separate the superfine powder, such as separating particles smaller than 10 microns from particles larger than 10 microns in raw materials, or separating particle size segments of 5-15 microns, or even separating multiple particle size segments at one time. At the same time of accurate classification, the air flow classifier is also a new type of environmental protection equipment, which can effectively prevent dust pollution caused by ultra-fine powder and dust explosion and other safety accidents in the production process. How does the air classifier work? Now let's have a look with Xiao Bian

First, put in the material. Then, after the material enters the classification chamber from the feeding system, use the centrifugal force generated by the rotation of the rotor to separate the powder mixed in the gas-solid two-phase fluid according to the particle size (particle diameter). Coarse particles sink under the action of gravity and centrifugal force. Most of the particles are brought into the classification chamber by the rising air flow. Particles that meet the particle size requirements enter the collection system through the gap between the mandatory classification blades due to the effect of small centrifugal force. Coarse particles in raw powder are thrown around the cylinder by the rotor blades and slide along the cylinder due to the effect of large centrifugal force. During the falling process, they are impacted by the secondary air flow, The fine powder agglomerated in the coarse particles is dispersed and blown to the classification room again. Finally, the coarse powder is discharged through the lower discharge valve under the action of gravity. Performance characteristics of air flow classifier: 1. Large output, low energy consumption and high classification efficiency. 2. Particle size concentration: according to the actual needs of customers, the machine adopts an original vertical impeller for classification. Stable classification technology and special sealing measures effectively prevent the leakage of coarse particles, so that the product has no large particles, particle size concentration and high classification accuracy. 3. Reasonable structure: products with 1-6 particle sizes can be produced at the same time according to user requirements. 4. Strong applicability: it can be combined with various mills (air flow mill, mechanical mill, ball mill, Raymond mill, vibration mill, etc.) to form closed circuit or open circuit combined operation. 5. High degree of automation: all impeller classifiers at all levels adopt electronic frequency conversion stepless speed regulation. The automatic circulation multi box dust collection process realizes electronic control and automatic dust removal, which improves the stability of the negative pressure of the whole machine. The above is the operation mode and characteristics of the air flow classifier. It is precisely because this equipment is different from the working principle of traditional screening machines that it has an unusual sorting effect, which is favored by many users