Working principle of airflow classifier

The high-speed rotating grading wheel generates a strong centrifugal field at the outer edge of the grading wheel. Large sized micro powder particles are thrown out due to the greater centrifugal force, while small-sized differential particles are "sucked" into the interior of the grading wheel by the wind due to the smaller centrifugal force and enter the collector through the fine powder chamber and conveying pipeline for collection.

The airflow classifier must be integrated with a collector, induced draft fan, discharge valve, and feeder to complete the classification process. It can form a closed-loop or open-loop production system with grinding equipment such as ball mills, Raymond mills, roller mills, and vertical mills.

application area

Suitable for grading the particle size of irregular shapes such as spherical, sheet-like, needle shaped, etc., as well as separating two materials with different densities, and also used to remove impurities from powders.

Widely used in industries such as pharmaceuticals, chemicals, non-metallic minerals, metallic minerals, abrasives, ceramics, refractory materials, pesticides, food, health products, and new materials.

FWNAdvantages of airflow classifier:

lNew classifier：Compared to traditional FWThe structure of the horizontal grading machine is more reasonable, using belt transmission and a new grading wheel structure

l Low energy consumption:15% lower than traditional vertical and horizontal classifiers～50%

l efficient:Adopting new self splitting technology and pre dispersed structure, the classification efficiency is 25% higher than traditional vertical and horizontal classifiers～50%

l High fineness:The particle size of graded products can reach D97 2 microns, and the particle size of the products is infinitely adjustable, making it easy to change varieties

l High precision:New gap sealing structure eliminates wall adhesion effect, eliminates large particles and screen residue

l environment protectionThe system operates under negative pressure, and the production process fully meets the high environmental protection requirements of the country, achieving dust-free production

l Low maintenance cost:The new grading wheel has no wear when producing materials with a Mohs hardness of less than 5. When producing materials with a Mohs hardness greater than 5, the service life of the grading wheel is increased by 3-8 times compared to traditional vertical and horizontal grading machines

Process flowchart:

1. Storage bin 2, multi rotor classifier 3, cyclone collector 4, pulse dust collector 5, induced draft fan

Technical parameters of FWN rotor airflow classifier

Note: The processing capacity is closely related to the particle size, specific gravity, moisture content, flowability and other indicators of the raw materials. The above data is for selection reference only.