GMP Standard Airflow Pulverizer

Working Principle of SCWN-Q Series Airflow Pulverizer

System Composition:

The airflow pulverizing system consists of an air compressor, air storage tank, refrigerated dryer (including a filter), an airflow pulverizing main unit, a high-precision classifier, a cyclone collector, a pulse bag filter, a high-pressure induced fan, a control cabinet, and a loading/unloading system.

Working Principle:

Compressed air, after being cooled, filtered, and dried, is ejected into the pulverizing chamber through nozzles to form supersonic airflow, fluidizing the material. The accelerated material converges at the intersection of several nozzle jets, where intense collisions, frictions, and shear forces occur, achieving ultrafine pulverization of the particles. The pulverized material is then transported by the ascending airflow to the impeller classification zone. Under the centrifugal force of the classifier and the suction force of the fan, the coarse and fine powders are separated. The coarse powder returns to the pulverizing chamber for further pulverization due to its own gravity. The qualified fine powder enters the cyclone collector with the airflow, while the fine dust is collected by the bag filter. The purified air is then discharged by the induced fan.

Performance Advantages and Features:

Based on the traditional fluidized bed pulverizer design, combined with our unique self-dividing classification technology, its performance far exceeds that of domestic and international fluidized bed airflow pulverizers.

1. Low energy consumption, saving up to 30% compared to traditional fluidized bed airflow pulverizers.
2. Built-in self-dividing micro-powder classifier, ensuring concentrated particle size distribution and no oversized particles in the finished product.
3. Compact equipment structure with a small footprint.
4. No material retention in the pulverizing chamber, easy to dismantle, clean, and sterilize, convenient for variety changeover, and compliant with GMP requirements.
5. Low-temperature pulverization without media, especially suitable for pulverizing low-melting-point, heat-sensitive, sugar-containing, and volatile materials.
6. For flammable and explosive materials, inert gas can be used as a medium to achieve fully enclosed pulverization, with extremely low loss of inert gas during recycling.
7. Wide range of pulverizing particle sizes, adjustable finished product particle sizes from 3 to 180 um; various models available with production capacities ranging from 1 to 3000 kg/h.
8. Negative pressure production, no dust pollution, and excellent working environment.
9. High automation level, strong stability, and easy operation.

Application Fields:
Widely used in chemical, mining, abrasives, refractory materials, battery materials, metallurgy, building materials, pharmaceuticals, ceramics, food, pesticides, feed, new materials, environmental protection, and other industries for ultrafine pulverization, disagglomeration, and particle shaping of various dry powder materials.

Hard Materials: Quartz sand, garnet, silicon carbide

The SCWN series can ultrafinely pulverize hard materials with Mohs hardness above 7, such as quartz sand and garnet. Its characteristics of low-temperature pulverization, high-purity operation, high machining finish, and easy cleaning make the airflow pulverizer series ideal for fine pulverization of these materials. Depending on the principle of airflow classification, 1-3 classifier heads can be equipped according to user needs, allowing for the one-time collection of 1 to 2 finished product fractions.

Abrasives, Refractory Materials, and Heat-Sensitive Materials:

The SCWN series operates under supersonic airflow to ultrafinely process hard materials with Mohs hardness above 7. The application of fluidized bed pulverization and vertical turbine classifiers minimizes equipment wear. The Classifier Wheel speed is adjustable, pulverization parameters can be optimized, and multiple classifiers can be combined to achieve narrow-band classification of several particle size fractions in one operation. Typical products include: metallic silicon, diamond, silicon carbide, emery, alumina, boron carbide, tungsten carbide, special ceramics, etc.

Installation, Debugging and Warranty: