If the cost is recovered within two to three years, the capacity of the machine is increased by at least 20% to 30%, and the machine is used for at least five years, upgrading the Ball Mill is economically justified.

Increased ball mill capacity through increased mechanization and automation of power and auxiliary operations. By changing the motor and changing the design parameters of the mechanical transmission (pulleys, sprockets, gears), a special reduction gear (planetary gear) is installed between the motor and the working member to increase the power. The stiffness and vibration resistance can be improved by installing stiffeners in the most loaded area of the structure, changing the shell structure, providing welds based on technology and deformation modes, and replacing the rubber and spring dampers with hydraulic shock absorbers.

By improving the wear resistance of key components, improving lubrication conditions, the use of guide frame guards reinforces weak parts (changing materials, heat treatment, dimensional and shape changes), extending equipment life and improving equipment flawlessness. In order to improve operational safety and ease of maintenance, locks that limit hazardous areas, stop and limit switches, guards and alarms should be installed as required.

Obsolescence is caused by the presence of higher performing equipment, making the use of outdated equipment unsuitable. Obsolete equipment is replaced by new equipment. An effective means of overcoming obsolescence is upgrading, ie, upgrading existing equipment in order to improve their performance standards to meet the standards of similar equipment designed more modernly.

We upgraded the ball mill by installing the batcher. One of the possible ways to upgrade a mill is to charge the mechanized ground material. It reduces the extra operating time. It is recommended to install a drum proportional feeder on the charging funnel. The feeder is driven by auger and used to feed the product into the drum via chain drive. The ingredient feeder operates on the principle that no more than 30 kg of material is poured into the mill at the beginning of the charge and then loaded in 15 kg aliquots at 10-15 minute intervals.