The principle of operation of steel balls as grinding media for a ball mill.
In modern industry, it is often necessary to grind various substances, minerals or homogenize a mixture of raw materials. For this purpose, a ball mill is used, in which the functions of the grinding media are performed by the appropriate balls for the ball mill. Balls placed in a ball mill and set in motion fall on the material inside, causing its fragmentation and grinding.
Balls for ball mills, also referred to as ball mill grinders, are made of hard, abrasion-resistant materials, eg;
Obviously, the harder the charge of a ball mill is, the harder the grinding media for a ball mill should be. In this case, it is worth using hardened steel balls (e.g. bearing balls).
Due to their weight, solid steel balls are the best solution, which is also good if we take into account the financial aspect (compared to ceramic balls). Very good grinding results are obtained when different diameters of the balls for the ball mill are used. These types of hardened steel balls are placed as ball mill grinders in various sectors:
In ball mills, or rather mixers, whose main task is to homogenize the mixture of various substances, carbon steel balls for ball mills can be used. These types of mixers are used in:
Carbon steel balls are sometimes used in such processes for economic reasons – they are much cheaper than bearing balls. However, attention should be paid to the specific application as the carbon steel balls for ball mills are relatively soft.