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From Pilot Testing to Plant Realization Dry Grinding Plant for SCM Production
cyment, a European pioneer in sustainable binder technology, focuses on reducing the environmental footprint of concrete while maintaining strict technical performance specifications. The company operates across multiple European markets with applications in construction projects.
To support growing demand for supplementary cementitious materials (SCM), cyment partnered with CEMTEC to realize a complete dry grinding plant in Hungary. The objective was to create a flexible and energy-efficient solution capable of processing different SCM materials while maintaining constant product quality.
A key challenge of the project was the varying material behavior of pozzolanic and latent hydraulic materials. Extensive laboratory and pilot scale testing formed the basis for the final plant design and enabled the development of a reliable grinding process tailored to the customer’s requirements.
Challenge
- Development of a process capable of handling highly variable supplementary cementitious materials with different grinding characteristics.
- Differences in grindability, density, moisture behavior, and particle size distribution of pozzolanic and latent hydraulic materials.
- Maintaining stable product fineness while ensuring efficient operation across different material compositions.
- High operational flexibility
- Stable product quality
- Efficient energy utilization
- Reliable long-term operation
- Integration into the customer’s production environment
Solution
- Extensive laboratory and pilot scale grinding tests to evaluate the behavior of the different SCM materials under real process conditions.
- The testing program focused on: Material characterization, Grindability evaluation, Separator optimization, Product fineness stability, Energy-efficient process design
- CEMTEC tailored a customized grinding concept to the customer’s material portfolio and production targets based on the collected test data.
Result
- Stable production of SCM products
- Throughput of 40 mtph
- Product fineness of 80% @ 50 μm
- Reliable processing of pozzolanic and latent hydraulic materials
- Optimized energy efficiency
- Flexible operation for varying material compositions
- Stable long-term grinding performance
- Supply of complete grinding solutions for modern supplementary cementitious material applications
- From laboratory testing and process development to engineering, project execution, and successful commissioning.
Engineering & Plant Design
Following the successful test phase, CEMTEC carried out the complete process and mechanical engineering for the dry grinding plant.
The scope included:- Process flow development
- Equipment sizing
- Mill and separator selection
- Plant layout engineering
- Ventilation and dedusting concept
- Ongoing optimisation and expansion in a long-term partnership
The final concept combines a ball mill with a high-efficiency 3rd generation separator to ensure reliable product quality and optimized energy consumption.
| Parameter | Description |
|---|---|
| Location | Hungary |
| Application | SCM industry |
| Throughput | 40 mtph |
| Product quality | 80% @ 50 µm |
| Ball mill | Ø 3.8 x 10.5 m |
| Installed power | 2,500 kW |
| Separator | CTC-090 (3rd generation) |
| Separator airflow | 90,000 m³/h |
Sustainability Impact
The production of supplementary cementitious materials plays a key role in reducing the clinker factor and lowering CO₂ emissions in cement production.
By implementing an energy-efficient dry grinding solution optimized for SCM applications, the project supports more sustainable construction materials while maintaining the required technical product performance. Due to CEOPS real-time particle analysis, high-quality data helps cyment to optimise production and ensure both process and product stability. This reference project highlights how advanced grinding technology and tailored process engineering can contribute to both operational efficiency and environmental responsibility in the cement industry.
Project Execution & Commissioning
CEMTEC managed the complete project realization, including engineering, equipment supply, installation support and commissioning.
During startup, the grinding circuit was optimized for different SCM materials. Separator settings, airflow and grinding parameters were fine-tuned to ensure stable operation and constant product quality.
The commissioning phase confirmed the successful implementation of the designed process concept and demonstrated the flexibility of the grinding system for different raw materials.