Project Overview
A new materials company in Hebei specializes in high-purity quartz powder. Its products are used in the electronics, coatings, and precision ceramics industries. To improve particle size accuracy and stabilize product quality, the company constructed a new quartz powder classification production line. The Epic Powder ITC-4 air classifier was selected as the core equipment to perform fine dry classification of 250-mesh quartz powder.
Equipment and Process Parameters

Core Equipment: Epic Powder ITC-4 Air Classifier
Feed Material: 250-mesh quartz powder
Classified Product (Coarse Powder): D97=10μm, D50=18μm
Process Configuration: Fully enclosed internal circulation dry classification, equipped with variable-frequency feeding, cyclone collection, pulse dust removal, and PLC intelligent control
Process Flow
The raw material enters the classifier via a sealed silo and a variable-frequency feeder. Under the combined action of airflow and centrifugal force, coarse and fine powders are precisely separated; the coarse powder is discharged according to specifications, while the fine powder is collected and stored via the collection system. The entire process operates under negative pressure in a sealed environment, ensuring no dust leakage and compliant exhaust emissions.
Project Results
| Advantage | Description |
|---|---|
| Precise and Stable Particle Size | The D97 and D50 specifications for the coarse powder are consistently met, with a narrow particle size distribution and no contamination. The product is highly pure, free of metal contamination, and offers significantly enhanced value. |
| Optimized Efficiency and Cost | High grading efficiency, stable operation, and a high degree of automation. Low material loss and lower overall energy consumption compared to traditional equipment. |
| Environmental Protection and Safety Compliance | Fully enclosed, dust-free production with high dust collection efficiency that meets environmental protection requirements. The equipment operates safely and reliably. |