Vertical roller mills are a type of grinding equipment that is commonly used in the cement industry. These machines are designed to grind materials to a finer particle size than traditional ball mills and offer several advantages, including a lower energy consumption and a smaller footprint. One of the key features that make vertical roller mills so effective is their ability to generate less dust than other types of mills.

There are several reasons for this. First, vertical roller mills have a unique design that helps to minimize the amount of dust that is generated during the grinding process. The grinding table and rollers are covered with a layer of material called the 'bed', which acts as a cushion and helps to reduce the amount of dust that is generated by the grinding process. In addition, the rollers in a vertical roller mill are designed to rotate at high speeds, which helps to 'blow away' any dust that may be generated.

Another reason why there is less dust in a vertical roller mill is that these machines are fitted with special seals and bearings that help to prevent dust from escaping. In addition, the design of the mill housing is such that there are fewer points of contact between moving parts, which reduces the likelihood of dust being generated.

Finally, vertical roller mills are also fitted with special air handling systems that help to minimize dust emissions. These systems use a combination of filters and fans to remove any dust that may be generated during the grinding process, ensuring that the air inside the mill is clean and free from contaminants.

In conclusion, there are several factors that contribute to the lower levels of dust that are generated by vertical roller mills, including their unique design, special seals and bearings, and advanced air handling systems. These features help to make vertical roller mills an increasingly popular choice for grinding a wide range of materials in various industries.