THE EFFECT OF ROTOR BALANCE DURING CRUSHING OF INTERMETALLIC COMPOUNDS IN HAMMER CRUSHERS

Abstract

The paper considers and presents such factors and parameters affecting the crushing of intermetalides in hammer crushers as – imbalance and balance of the rotor. The structural and technological factors of impact crushing equipment are analyzed. These factors affect not only the energy performance of grinding, but can also lead to increased wear of parts and components of the hammer crusher. Methods of improvement by prompt and timely balancing of the rotor in a hammer mill and on a balancing stand are proposed. Research objective: crushing of intermetalides and modeling of the operation of hammer crushers, namely: the destruction of crushed materials and operating conditions with and without vibration due to an unbalanced rotor and a balanced rotor in order to understand how much this affects the performance of hammer crushers and energy loss. It is also necessary for the initial assessment and selection of design and technological parameters for: design, operation and repair of impact crushing equipment – in order to optimize the cost of electric energy for the design of new hammer crushers and those in operation, as well as to increase the time without repairs all crusher parts. With balancing, it was possible to balance the rotor. After conducting research at the laboratory facility, the percentage ratio of the negative influence of the construction factor was determined, which is from 8% to 15% of the energy overrun, namely, the rotor imbalance.