Development history of vertical roller mill

Project Background

The vertical roller mill is also a vertical roller mill. The first vertical roller mill was developed in Germany in the 1920s. Some people say that its grinding principle is similar to that of our ancestors when grinding grain.

Project Advantages

Development history of vertical roller mill

The vertical roller mill is also a vertical roller mill. The first vertical roller mill was developed in Germany in the 1920s. Some people say that its grinding principle is similar to that of our ancestors when grinding grain. It uses the material bed grinding principle to grind materials, which overcomes many defects of the ball mill grinding mechanism. The vertical roller mill (vertical roller mill) produced by Shanghai Kunke Road and Bridge Machinery has high grinding efficiency, low power consumption (20% ~ 30% power saving than ball mill), large drying capacity, and allows large granularity of powdered materials and powder The grinding process is simple, the floor area is small, the construction cost is low, the noise is low, the wear is small, the life is long, and the operation is easy.

After 90 years of development, the vertical roller mill (vertical roller mill) technology has been very mature, especially since the 1960s, with the birth of preheating and pre-decomposition technology and the large-scale production of new dry process cement, It has been widely used in the foreign cement industry, and its technical level has been further improved and improved. Many foreign companies have successively developed various types of vertical roller mills, and all have achieved success. At present, the world's largest vertical roller mill has a single output of 600t / h, which can be used to match the 8000t / d clinker production line with grinding cement raw materials.

Just a few years ago, due to the changes in China's cement industry industrial policy and the expansion of production scale, China had to import dozens of foreign raw material mills supporting 4000-6000t / d cement production lines from abroad. So far, China has developed an SBM vertical roller mill (vertical roller mill) with independent intellectual property rights and successfully applied in the grinding of raw meal, pulverized coal, slag and cement in the cement industry.

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