Fujian Slag Micro-Powder Vertical Mill Project Case Study
Fujian Slag Micro-Powder Vertical Mill Project Case Study
In the heart of Fujian’s bustling industrial sector, a major construction materials producer was facing a significant challenge: efficiently processing granulated blast furnace slag into high-value micro-powder for cement and concrete applications. Their existing ball mill system was energy-intensive, occupied substantial floor space, and struggled to achieve the consistent fineness required by their quality-conscious clients.
After a thorough technical evaluation, our engineering team recommended the LM Vertical Slag Mill as the core of their new grinding circuit. This wasn’t a random choice. The client’s feedstock consisted of slag with an input size of 38-65mm, requiring a capacity of approximately 45 tons per hour – parameters that aligned perfectly with the LM mill’s capabilities of 7-100T/H handling 38-65mm input material.
Technical Implementation and Challenges
The installation presented several unique challenges. The existing plant layout was constrained, requiring a mill with a small footprint. The LM Vertical Slag Mill’s integrated design – combining drying, grinding, powder selection, and conveying in a single compact unit – proved decisive. Compared to their previous ball mill system, the vertical mill reduced their occupied area by approximately 50%, allowing for installation without costly facility expansion.
Energy consumption was another critical factor. The client’s operational costs were being eroded by the ball mill’s high power demands. The LM Vertical Slag Mill’s innovative grinding roller and ring design, coupled with its efficient powder selection system, delivered dramatic energy savings. Post-installation data confirmed energy consumption reductions of 30-40%, significantly improving their bottom line while meeting environmental sustainability targets.
Performance Results and Product Quality
The transition to vertical milling technology yielded impressive results. The fineness of the produced slag powder consistently achieved 420-450 m²/kg Blaine surface area, with excellent particle size distribution uniformity. This enhanced product quality directly translated to improved performance in cement and concrete applications, giving our client a competitive edge in premium markets.
Maintenance concerns, often a drawback with traditional grinding systems, were mitigated through the LM mill’s design features. The hydraulic system allowed grinding rollers to be easily turned out for inspection and maintenance, reducing downtime from days to hours. The absence of direct contact between grinding rollers and the table during operation minimized wear on critical components, extending service intervals significantly.
Environmental and Operational Benefits
Beyond the economic advantages, the environmental performance aligned with Fujian’s stringent regulations. The completely sealed negative-pressure operation eliminated dust emissions, while the integrated noise reduction measures maintained workplace noise levels well below required limits. The client reported not only compliance with environmental standards but also improved working conditions for their operational staff.
For similar applications requiring efficient slag or industrial waste processing, we also recommend considering our MW Ultrafine Grinding Mill for projects requiring even finer powder production (adjustable between 325-2500 meshes). The MW series is particularly suited for applications demanding ultra-fine powders with precise particle size distribution control, though with a lower capacity range of 0.5-25 tph.
Conclusion
The Fujian slag processing project demonstrates how appropriate grinding technology selection can transform operational efficiency and product quality. The LM Vertical Slag Mill’s integrated approach to grinding, combined with its energy-efficient operation and minimal environmental impact, provided a comprehensive solution that addressed both economic and technical challenges. For industrial mineral processors seeking to optimize their grinding circuits, vertical mill technology represents a compelling investment that delivers measurable returns across multiple performance metrics.