The working principle of vertical milling machine

Independent R & D and production of grinding technology in high demand, China's relevant research institutions have in the 80's proposed to promote vertical roller mill in cement industry, but there was also some manufacturers introduced products to establish their own mill. But at the time of the level of research and development limited, the vertical roller mill products have some defects, so a lot of cement manufacturers finally again to ball mill.
In recent years, along with increased milling machinery technology research and development, production enterprises overseas vertical roller mill grinding technology has matured, vertical grinding technological superiority of products are also increasingly prominent. In this situation, the domestic mill production enterprises learn from the successful experience of foreign countries, significant technical reform, have been re introduced a grinding product set has its own patent technology, and gradually to the domestic cement, electric power, chemical industry, to accept, to become the industry grinding device of choice.
2 working principle
The motor drives the grinding disc to rotate by the reducer, the material from the feed mill to central, under the action of centrifugal force to the edge of the grinding disc and the grinding roller compaction is moving, the crushed material overflow from the edge of the grinding disc, is also from the nozzle ring (air ring) high efficiency separator speed up with the hot air flow to one of the vertical roller mill, coarse powder separator after the separation returned to the grinding table, re grinding; fine powder with air flow mill, collected in the dust collecting device of the system, namely the product. No metal parts by hot air flow with the coarse particle material and accidentally enters the sink from the wind ring, the scraper scraping, the circulation of the bucket feed mill for regrinding.