Prosjektbakgrunn
Indonesia and other Southeast Asian regions prize Bamboo Charcoal for its exceptional adsorption properties, conductivity, and infrared emission rates. This material serves as a key component in environmental filtration, cosmetic additives, and energy storage materials. However, natural bamboo charcoal is hard yet brittle. Processing it into a highly uniform powder with good fluidity requires strict control over temperature and particle size distribution.
This case study focuses on a leading biomass material supplier in Indonesia that utilized the Epic Powder Air Classifier Mill (ACM) for the ultrafine grinding of bamboo charcoal to achieve standardized mass production of bamboo charcoal.
Core Customer Requirements
- Finished Particle Size: Must achieve a high standard of d99 = 100μm to ensure optimal dispersibility in downstream applications.
- Morphology Preservation: Maximize the retention of the bamboo charcoal’s microporous structure, avoiding over-grinding that reduces adsorption capacity.
- High-Efficiency Production: Suitable for Indonesia’s tropical climate, requiring excellent heat dissipation to prevent material oxidation or buildup.
Løsning: Episk pulver Air Classifier Mill (ACM Series)for Ultrafine Grinding of Bamboo Charcoal
To address the physical characteristics of bamboo charcoal, Epic Powder provided a highly integrated ACM system. This equipment combines mechanical impact grinding og centrifugal air classification into a single unit.
1. Core Process Flow
- Mechanical Grinding: Pre-processed bamboo charcoal chunks enter the grinding chamber and are subjected to intense impact from high-speed rotating hammers or pins.
- Real-time Classification: The built-in high-precision classifying wheel runs simultaneously. Fine powder reaching d99 = 100μm passes through the wheel with the airflow into the collection system.
- Internal Recirculation: Over-sized particles are returned to the grinding zone by gravity for further processing until they meet the specifications.
2. Technical Advantages
- Presis partikkelstørrelseskontroll: By adjusting the frequency of the classifying wheel, the 100μm cut point remains stable with a very narrow Particle Size Distribution (PSD).
- Low-Temperature Operation: The internal airflow carries away the majority of the heat generated during grinding. This is ideal for bamboo charcoal as it prevents localized overheating.
- Wear-Resistant Design: Engineers use special wear-resistant alloys for grinding components to withstand the silica in bamboo charcoal, which significantly extends maintenance cycles.
Results and Feedback
In field operations, the Indonesian customer’s processing line reached all expected technical benchmarks:
| Key Performance Indicator | Test Result |
| Finished Particle Size | D99 ≤100μm |
| Particle Morphology | Uniform particles with well-preserved microporous structures |
| System Stability | 24/7 continuous operation without clogging; dust emissions meet local environmental standards |