Some Methods of Improving the Performance of Ball Mill

There are literally thousands of Ball Mills in use throughout the world, many of them in the cement industry. Few installations have a comprehensible method of controlling and recording exactly what ball size distribution is in, or should be in, the Ball Mill. As mills are supplied for ever increasing capacities, the ball size distribution and wear exact a tremendous effect on the profitability of producing finish cement. Improper size distribution or filling level of the ball charge can easily reduce the efficiency of grinding (possible production rate) by 5% to 20%. Relating an efficiency loss of only 5% for a mill with a capacity of 150 Stph, results in a loss of saleable cement at $90/Ston of $5.0 million per year. Online, real time information from the grinding process has aided in the attempt to reach peak performance, but for many grinding installations, maintenance of the grinding media remains in the dark ages.

The above-mentioned three kinds of methods, any one kinds of Ball Mill can be greatly improved production. Of course, if factory conditions permit, the above-mentioned three kinds of methods supporting the use of the ideal result, which is grinding system at home and abroad in recent years, the design trend. Three relationships: is the premise of Pre-grinding crushing, grinding powder is to ensure that after the election, mill transformation is fundamental. Made before the crushing mill grinding of materials into the particle size greatly reduced, thereby reducing the load on grinding system; separator efficiency, the most direct benefit is to be finished in time chosen to maximize the powder to reduce the cement product back extraction rate, reduce the mill load; the mill transformation, that is grinding system improvements, is the most fundamental solution. Material into the mill to reduce particle size, and separator efficiency, and less efficient if the grinding system, affecting not only the mill's production, also affect cement quality....