Mysak S. The improvement of the efficiency of the sawing systems boilers of TPS power units during non-project fuel types burning

This dissertation is devoted to the issues of increasing sawing system efficiency of boilers of TPS power units by designing new less consuming and more reliable methods for determining the main characteristics of sawing systems during combustion of non-project types of fuel, which lead to resource and energy savings. In this paper the coal mills, cyclones and other boiler equipment are discussed in details. At Trypilskaya TPS, experimental research was carried out on the process of combustion of non-project fuel on the basis of which the optimum excess air in the regime of cuttings for the given type of fuel was determined. On the basis of experimental data, an analytical method for determining the wear of armor of a ball drum mill has been refined, which allows a partial replacement of armor plates during repair during repair without full restoration of the armor coating of the cylindrical or end surfaces of the drum and to save money on equipment repairs. New methods for determining the particles of the components of a mixture of two types of fuel are developed based on the results of a chemical analysis of the coal sample, which is taken directly from the coal flow in front of the mill. These methods are patented and implemented in production. They can be used not only in the modes of experiments, but also in the process of long-term exploitation. New effective methods of determining the performance of ball valves of pulverized coal boilers of powerful power units of TPS are developed. They allow you to quickly determine the productivity of the mill, regardless of the conditions and modes of operation of the sawing systems. Unlike existing methods, they can reduce human costs and further provide the opportunity to automate this process. The algorithm has been refined and the program for calculating the main technological parameters of the sawing system for TP-92, TP-100, TPP-210A, TPP-312 boilers, which can be used on most TPS in Ukraine, is developed.