Case study of energy-saving vertical roller pre-grinding machine in cement industry

Cement production is a major energy-intensive industry, accounting for about 5% of global energy consumption. The grinding process, which is used to reduce raw materials into a fine powder, is a major contributor to this energy consumption.

Traditional ball mill are the most common type of grinding mill used in the cement industry. However, ball mills are inefficient and can consume a significant amount of energy.

Vertical roller mill are a newer type of grinding mill that offer a number of advantages over ball mills, including:

• Higher efficiency: Vertical roller mill can grind materials with greater efficiency than ball mills, which can lead to significant energy savings.
• Uniform particle size: Vertical roller mill can produce a more uniform particle size than ball mills, which can improve the quality of cement.
• Less wear and tear: Vertical roller mill are less prone to wear and tear than ball mills, which can lead to lower maintenance costs.

Case study:

A cement plant in China replaced its existing ball mills with Vertical roller mill. The plant was able to achieve the following energy savings:

• A 20% reduction in energy consumption for raw meal grinding
• A 15% reduction in energy consumption for clinker grinding

The plant also reported the following improvements in product quality:

• A reduction in the amount of fines in the cement
• An improvement in the setting time of the cement

Vertical roller mill offer a number of advantages over traditional ball mills for cement production. They are more efficient, produce a more uniform particle size, and are less prone to wear and tear. These advantages can lead to significant energy savings and improvements in product quality.

The case study above demonstrates the potential for Vertical roller mill to save energy and improve product quality in the cement industry. As the cost of energy continues to rise, Vertical roller mill are becoming a more attractive option for cement producers.