INCREASING THE EFFICIENCY OF CRUSHING EQUIPMENT

In the process of extracting solid minerals by open-pit mining, the key production operations are the processes of crushing and grinding raw materials.In order to increase the economic efficiency of mining enterprises that use crushing and grinding equipment, it is necessary to constantly improve the design and extend the service life of the main components of the equipment.The paper presents a methodology for evaluating the efficiency of crushing equipment use, which is based on the analysis of specific crushing costs.The relevance of applying methods for monitoring the efficiency of crushing equipment increases due to an increase in the volume of rock processing due to a decrease in the content of the useful component in the extracted ore.In this regard, a technique was developed that links the physical and mechanical properties of the rock being destroyed with the replacement period of the crusher's consumable elements.The development of this technique is due to the need to control the efficiency of using technological equipment, in this case, equipment for crushing grain.The introduction of efficiency assessment methods using automated systems will reduce the cost of electricity and consumables, as well as maintain the stability of the particle size.The economic and mathematical model of specific crushing costs was developed considering the operational experience of crushing equipment at various mining and processing plants in Russia.The developed method makes it possible to estimate with sufficient accuracy the economic efficiency of crushing equipment used in crushing and screening complexes or processing plants.When developing the methodology, the authors used a theoretical and practical approach, taking into account the actual practice of operating crushing equipment.