Project Overview
- Location: Greece
- Application: High-purity quartz micropowder (for electronic and solar-grade materials)
- Material: High-purity quartz powder
- Target Fineness (D97): 6.716 μm
- Designed Capacity: 1–1.5 t/h
- Core Equipment: Epic Powder ITC Series High-Precision Air Classifier
Project Challenges and Objectives
The main challenge of this project was achieving precise control of ultrafine particle size while maintaining high throughput.
Ultrafine Classification Precision:
The customer required D97 ≤ 6.716 μm. This means 97% of the particles must be smaller than 6.716 μm. It represents an exceptionally tight size distribution. Such precision is typically required in electronic and photovoltaic material production. In these fields, high accuracy, purity, and narrow particle size distribution are essential.
High Throughput:
In addition to ultrafine precision, the classifier needed to maintain a stable production rate of 1–1.5 t/h. This ensured consistent output. It also met the customer’s demand for large-scale and continuous production.
Epic Powder Quartz Powder ITC Air Classifier Solution
After extensive laboratory testing and optimization, the high-purity quartz powder project adopted the Epic Powder ITC Series High-Precision Air Classifier.
The ITC classifier (a turbine or rotor-type air classifier) is designed for the precise separation of ultrafine powders, offering the following key advantages:
- High-Precision Classification Wheel:
The classifier wheel features high linear speed and a special aerodynamic design, generating a strong and stable centrifugal field. It provides excellent cut point control and high separation efficiency, especially for particles below 10 μm. - Dynamic Airflow Balance:
By precisely controlling airflow velocity and feed rate within the classification zone, the ITC ensures perfect equilibrium between centrifugal and drag forces. This maintains a stable cut size and ensures accurate D97 control. - High Throughput Design:
The optimized internal structure and airflow path allow the ITC classifier to maintain high processing capacity (1–1.5 t/h) without sacrificing classification accuracy. - Low Contamination and High Purity:
For high-purity quartz powder, contamination control is critical. The ITC classifier uses wear-resistant ceramic or high-purity internal linings, preventing metal contamination (such as Fe or Al) and ensuring the purity of the final product.
Performance Results
After commissioning, the system runs smoothly with excellent classification accuracy and narrow particle size distribution.
The final quartz powder exhibits high purity and brightness, fully meeting electronic and photovoltaic-grade requirements.
The ceramic classifier components and optimized airflow design effectively eliminate contamination from metallic ions or impurities.
The customer reported easy maintenance, low energy consumption, and stable, high-efficiency performance, with overall results exceeding expectations.