Fly ash is a coal combustion product that is composed of the particulates (fine particles of burned fuel) that are driven out of coal-fired boilers together with the flue gases. Ash that falls to the bottom of the boiler is called bottom ash. In modern coal-fired power plants, fly ash is generally captured by electrostatic precipitators or other particle filtration equipment before the flue gases reach the chimneys. Together with bottom ash removed from the bottom of the boiler, it is known as coal ash. Depending upon the source and composition of the coal being burned, the components of fly ash vary considerably, but all fly ash includes substantial amounts of silicon dioxide (SiO2) (both amorphous and crystalline), aluminium oxide (Al2O3) and calcium oxide (CaO), the main mineral compounds in coal-bearing rock strata.
1. Open-flow high-fine grinding
Simple and low-cost for fly ash processing. It easily causes over-grinding or incomplete grinding, with high power consumption.
2. Closed-circuit grinding
Ground fly ash goes to the classifier. Coarse particles are re-ground, and qualified powder enters the silo.
3. Semi-finish grinding
It keeps particle shapes, limits over-grinding and saves energy. Not applicable to coarse fly ash with few fine particles.
4. Open-flow fine grinding
Adaptable to various fly ash. Two working modes are available. Pre-classification grinding optimizes product performance.
To cater to specific material characteristics and meet customer requirements, SBM provides a range of grinding mills, including the MTM, MTW, LM, LUM, and SCM series.
To ensure environmentally friendly production, various measures are implemented, including the adoption of dust removers and sealing at each component.
SBM's solutions are highly automated, characterized by the utilization of a centralized control platform. This allows for the monitoring and effective control of the entire production process, resulting in significant savings in labor costs.
For each customer, a dedicated engineer is assigned to oversee their project, ensuring prompt resolution of any questions or issues that may arise. Additionally, our 24/7 online service is readily available to provide assistance at any time.
