TESTING TECHNICAL SOLUTIONS FOR THE BURNER DEVICES AS A LOW-EMISSION SYSTEM OF KUZNETSK COAL COMBUSTION

• Main Authors: Aleksandr V. Kopan, Vladimir A. Kleinerman
• Format: Article
• Language: Russian
• Published: Tomsk Polytechnic University 2021-04-01
• Series: Известия Томского политехнического университета: Инжиниринг георесурсов
• Subjects: boiler; nitrogen oxides; low emission combustion; overfire air; horizontally staged combustion; pk-114
• Online Access: http://izvestiya.tpu.ru/archive/article/view/3157/2454
• ISSN: 2500-1019; 2413-1830

The paper considers the solutions regarding decreasing of environmentally harmful nitrogen oxide emissions when combusting the Kuznetsk coal grade D on the power boilers of E-240-13,8-560KT type for the newly built power plant in Kaliningrad oblast. The aim of the research is to develop the list of technical solutions that will be implemented on the newly built power boilers for the burner devices, furnaces and the dust preparation system, which will contribute to low-emission combustion of Kuznetsk coal grade D and will provide the needed technical and economical results. The object of the study is furnace processes, burner devices of power boilers and the dust preparation systems. The research method is mathematical modeling of combustion processes. The relevance of this article is caused by the importance of compliance of newly built power equipment with the environmental standards, in particular the standards of nitrogen oxide emissions. The following solutions were chosen after mathematical modeling of combustion process and calculation of such parameters as the field of temperatures, concentrations of discrete phase and oxygen at the different altitude heights and sections with different initial data (like the positioning of overfire air nozzles, air redistribution). The result of the study was a reasonable choice of the only working option.