Cement plant vertical mill work, the material through the feed chute into the mill, with the roller and the mill roll crushing and grinding is crushed; crushed powder overflow mill, was the mill from the bottom of the wind guide ring blowing Of 60 ~ 70m / s or more hot air drying, and into the separator for particle size screening;
Qualified fine powder discharged outside the mill, the unqualified powder is still back to the grinding wheel grinding until grinding qualified. It can be seen, vertical mill parts by the block of abrasive wear and high-speed airflow carried
Erosion of powder particles, the working conditions are extremely poor, unless the use of wear-resistant materials, most parts of the service life of only a few months, or even shorter. Typical consumable parts have feed chute liner, grinding shell lining Plate, grinding shield, air guide cone lining (or shield), roll cover (or ring), the separator guide vane, back cone material, rod shield, scraper and Anti-torsion device protection board, outlet duct and so on. The use of chromium carbide surfacing composite steel production of the above-mentioned fragile parts to improve its service life, access to significant technical and economic results, the general increase in life of 3 to 5 times. If the separator guide blades can be used 2 to 3 years (slag vertical mill), air guide cone liner and grinding bodyguard (raw material vertical mill) can be used 2 to 3 years, roll sheath can be used 1.5 to 2 years , The material cone can be used for more than 3 years. For domestic cement enterprises to save a lot of production costs and achieve greater economic benefits. In addition the cement industry fan blades, pipes, troughs lining, retaining ring and crusher parts, roller baffles and other side are high wear parts, the use of high chromium wear-resistant composite board as a wear-resistant layer can be significant Extend the service life of equipment, increase the economic efficiency of enterprises.