Currently in the process of determining the load and gradation of grinding steel forging, we can refer to a certain formula, but also can be based on experience to be deployed. At present, the gradation of grinding steel forging is still more with multi-level balling. When the grading lining is used, the average particle diameter of the material in each position in the length direction of the grinding stone is gradually decreased, and the average of the ball at each point ball diameter should also be gradually reduced.
And the trend of these two curves is roughly the same. However, it is important to note that the reduction of ball size is not the same when adjusting the grade of grinding steel forging.Obviously, if only make up the big ball, then the average diameter will inevitably become larger trend. So, how to determine the load and grading is reasonable? First of all, we can test and analyze according to mill output and product fineness.
Of course, we can judge according to the grinding sound. For example, to ensure normal feeding conditions,The impact of a warehouse grinding steel forging strong, can hear the sound of rushing.If the impact sound of the first warehouse ball is particularly loud, it means that the average ball diameter of the first warehouse ball is too large or the filling rate is larger. If the sound bored, indicating the average ball diameter of the first warehouse is too small or filling rate is too low, this time the ball needs to increase the average diameter and fill rate.
In practical work, we need to take a certain method to determine the specific amount of grinding steel forging supplement. For example, according to the grinding wear per unit of product, that is, the same mill annual consumption / mill annual production, multiplied by mill stage production. You can also calculate the amount of back-up by multiplying the amount of wear per unit time by the running time of the mill stage.
In addition to the above methods, the amount of replenishment of the grinding steel forging can also be determined based on the comparison of the main motor ammeter value during air grinding and the experience value. It should be noted that, because the operation of the mill is an ever-changing complex process, which contains many factors that need to reasonably judge the amount of grinding steel forging, so as not to affect the mill output.