As global building safety standards continue to rise, the Australian fireproof material market is demanding higher performance and customized deeltjesgrootte distributions for glass powder. As an inorganic flame-retardant filler, the particle size distribution of glass powder directly impacts the film-forming density of fireproof coatings and the glazing effect under high-temperature conditions.
The Australian client is dedicated to developing a new generation of high-performance fireproof materials. The project required the precise separation of raw glass powder into ultra-fine powder (to improve bekleding smoothness) and coarse powder (to provide structural support). The client had stringent requirements for both production capacity and grading precision.
Project Overzicht
- Locatie: Australia
- Materiaal: Low-melting-point glass powder
- Apparatuur: Episch poeder HTS Luchtclassificator
- Grading Requirements:
- Fine Powder: D97= 10μm
- Coarse Powder: D50 = 18μm
Technical Challenges & Solutions
1. Precision in Glass Powder Classificatie
Fireproof materials require extremely strict particle size distribution (PSD). To obtain a fine powder with a D97 of only 10μm, the classifier must possess a powerful centrifugal force field and excellent flow field control. The Epic Powder HTS 315 utilizes a vertical single-rotor structure. By adjusting the rotor speed via frequency conversion, it can accurately cut fine powder, ensuring a very narrow PSD for the fine fraction.
2. Wear Control
- Oplossing: The classification wheel and key system components of the HTS 315 are treated with ceramic liners or wear-resistant materials. This not only extends the equipment’s lifespan but also ensures the graded material remains free from iron contamination, maintaining the purity and color of the glass powder.
3. Efficient Separation of Coarse and Fine Powder
The project required the coarse powder to reach D50 = 18μm. This requires the classifier to quickly discharge coarse particles without entrainment after extracting the fine powder. The optimized secondary air intake design of the HTS series effectively “washes” the fine powder trapped in the coarse material, significantly improving classification efficiency.
Projectresultaten
Following installation and commissioning, the system demonstrated exceptional performance at the Australian client’s site:
- Nauwkeurige deeltjesgroottecontrole: Laser particle size analysis confirmed that the fine powder met the D97 ≤10μm requirement, significantly enhancing the performance of the client’s ultra-thin fireproof coatings.
- Stabiele doorvoer: The system maintained a steady output, meeting the client’s commercial production needs.
- Intelligent Operation: Utilizing PLC automated control, operators can achieve rapid switching between different product specifications by simply adjusting the rotor speed and airflow parameters.
Core Advantages: Epic Powder HTS Series Air Classifier
- Classificatie met hoge precisie: Specifically designed classification rotors can achieve a top-tier cut point of D97 < 5μm.
- Hoge doorvoer: Compared to traditional classifiers, the HTS series offers greater material throughput under the same energy consumption.
- Versatility: This equipment is ideal for the glass powder classification, allowing for flexible production of various particle size segments to adapt to diverse market demands.
Episch poeder (Qingdao Epic Poeder machines Co., Ltd.) is committed to providing advanced ultra-fine powder classification solutions to global customers. The success of this Australian project further proves our professional leadership in handling highly abrasive materials with high-precision requirements.