The relevance and demanding of the dissertation the theme. Today, the world's countries with different level of provision of electric power, the average power consumption is 37% in the industry, including mining and metals industry accounted for 12 In connection with the depletion of easily recoverable reserves of mineral resources and the involvement in the exploitation reserves localized in more difficult geological conditions, energy consumption for mining industry is constantly growing. According to statistics, the annual consumption of electrical energy in the mining industry in the world is 913.2 TWh. By results of researches by 2030 the growth of electrical energy consumption will be average 1.8% per year. Particular attention is paid to the implementation of measures to ensure the needs and requirements of industry, energy saving and efficiency of the process, optimization of electric energy consumption.
Mining and metallurgical industry is one of the largest energy consumers in the Republic of Uzbekistan, in which special attention is focused on the organization of effective measures for the implementation of high-performance technologies. In this regard, notable progress has been made in creating high-performance process control systems, standardization of electric energy consumption, improvement of management systems of technological process on the based of intelligent systems.
Acquired issues of particular importance to reduce energy intensity of process ore beneficiation process and energy efficiency technologies for processing mineral resources in view of its inherent characteristics. In this area, the implementation of targeted research is a priority, while highly relevant research in the following areas: the development of a rational law of variable frequency drive, identifying energy-saving modes of operation of the induction motor with static and dynamic processes and the creation of its mathematical model, the development of the wear pattern of the pump unit, the development of a mathematical model of the process and electricity rationing electricity consumption, taking into account the definition of the significant factors influencing the process, to develop an algorithm of forecasting of electric energy consumption. Ongoing scientific research on research areas above indicated is the actuality of the dissertation topic.
This dissertation research is to a certain degree perform tasks provided for in the law of the Republic of Uzbekistan "On the rational use of energy" (1997), Decree of the of the President of the Republic of Uzbekistan PD No. 2343 on May 5, 2015 "On the program to reduce energy consumption measures, the introduction of energy saving technologies in the fields of economy and social sphere for 2015-2019 " and the Decree of the Cabinet of Ministers of the Republic of Uzbekistan No. 333 on November 28, 2012 "On additional measures to reduce manufacturing costs and reduce production costs in the industry", as well as in other regulatory documents adopted in this area.
The aim of the research is to develop technical solutions based on the variable speed drive with electricity rationing parameters that provide energy efficiency enrichment processes.
Scientific novelty of dissertational research consists in the following:
identified the most important factors affecting the wear of pump components, developed a mathematical model of wear as a function of the main factors influencing it in the course of operation;
developed energy- and resource-saving operation of variable frequency drive system, "asynchronous motor - pump pumping pulp";
depending on the efficiency of installed electric power consumption of the degree of loading of the balls of the mill second-stage grinding the orc;
developed a comprehensive method of valuation and modeling of energy consumption parameters for the evaluation of energy saving efficiency;
developed a model for predicting the electrical energy consumption of the basic technological parameters of the function.
