New trends in forging steel ball mill ball
Author : RuiGuang Time : 2014-01-03 Click :
Practice has proved that the mine with high chrome ball mill grinding to replace this low chrome ball and forged steel ball is necessarily a trend, most foreign mines have already adopted high chrome ball high hardness (HRC ≥ 62 degrees or more ) as grinding media .In recent years, continuous research and development of mine-specific combination of super-hard high chrome ball mining industry, the actual working conditions , soon after being put on the market to use mine users favor ( Henan, Jilin , Sichuan, Hubei some areas ) . The ball mill products of high hardness (HRC) can reach 63-68 , impact value ≥ 4.0J / cm 2 or more , wear an ordinary low chrome ball two times , 2.2 times more than forged steel ball ; actual use by the user test ball broken rate ≤ 0.2% ( significantly lower than the national standard and the level of similar enterprises ) . Because of this mine dedicated high chrome ball good wear single position low wear, high grinding efficiency, the ball mill grading stable not easy to change , not only in a certain extent, an increase of slag fineness, while improving the production units , but also to ensure that the ore quality ; while extending the period of additional ball , greatly reducing the labor intensity , especially in greatly reducing the number of additional balls .