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Zhejiang Taizhou Pudu Intelligent Equipment Co., Ltd
The structural principle and application advantages of airflow pulverizer
Date: 2025-10-24Read: 7
The airflow crusher is an advanced equipment that uses high-speed airflow impact to achieve ultrafine material crushing. Its core structural principles and application advantages are as follows:
1、 Structural principle
1. Core components
It consists of a crushing chamber, a classifier, a cyclone separator, a dust collector, and a high-pressure gas source system. Compressed air is accelerated to supersonic speed (50-300m/s) through a Laval nozzle, forming multiple intersecting airflows in the crushing chamber. Material particles are crushed through mutual collision, friction, and shear.
2. Grading mechanism
The built-in grading turbine separates coarse and fine particles through centrifugal force, and the standard fine powder enters the collection system, while the coarse particles return for further crushing. Fluidized bed equipment achieves more uniform fluidized bed crushing through airflow distribution plates.
2、 Application advantages
1. Crushing performance
Particle size range: 3-20 μ m ultrafine powder can be prepared, with narrow particle size distribution and smooth surface.
Low temperature characteristics: Airflow expansion absorbs heat, suitable for thermosensitive materials such as pharmaceuticals and biologics.
2. Technological advantages
Pollution free: Pure pneumatic crushing avoids metal wear and is suitable for fields requiring high purity, such as electronic chemicals.
Multifunctionality: It can be used in conjunction with inert gas to process flammable and explosive materials, or achieve combined crushing drying operations.
3、 Typical application scenarios
1. Medical field: Aseptic crushing of thermosensitive drugs such as antibiotics and vaccines.
2. New energy materials: nanoscale crushing of positive and negative electrode materials for lithium batteries.
3. Fine Chemicals: Preparation of high-purity powders such as dyes and catalysts.
