Analysis of modern methods of combustionof lignite in primary furnace

Authors

  • Валерій Андрійович Рогачов National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056, Ukraine
  • Сергій Анатолійович Рева National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056, Ukraine
  • Мар’ян Володимирович Ванджура National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056, Ukraine

DOI:

https://doi.org/10.15587/1729-4061.2013.14836

Keywords:

primary furnace, lignite, combustion techniques, fluidized bed, dense layer, circulating bed

Abstract

The article analyzes the methods of heat treatment of lignite in primary furnace in order to create an efficient primary furnace for burning solid fuel with small dimensions.

The article provides an overview of the existing technologies of combustion of solid fuel in the primary furnaces of steam boilers, and tested heat treatment technologies of lignite in a fluidized bed and in the vortex, in a fixed or movable dense layer, and in a circulating fluidized bed.

From the above-mentioned methods of combustion of solid fuel for the heat treatment of lignite, the best is the cyclone or vortex method. It differs from others by the least necessary dimensions of the principal and auxiliary equipment. If the furnace provides a complete combustion mode, the ash will not contain carbon, and contraction at the outlet of the cyclone will prevent much of the ash in the boiler of the furnace. If the effective heat treatment of gas coal, without initiating fuel usually requires the temperature level of molten slag, for the more reactive lignite it may be sufficient to maintain the temperature not much less than the softening point of the ash. This greatly simplifies the deashing and requirements to materials of internal lining.

This analysis can be used when developing new technologies of combustion of lignite in primary furnace installed in front of the existing boiler units designed to combust both coal and natural gas or fuel oil, mainly used in the municipal power system of Ukraine.

Author Biographies

Валерій Андрійович Рогачов, National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056

PhD, associate professor

Chair of nuclear power plants and engineering thermophysics

Сергій Анатолійович Рева, National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056

Magistrant

Chair of nuclear power plants and engineering thermophysics

Мар’ян Володимирович Ванджура, National technical university of Ukraine "Kiev Polytechnic Institute" Pobedy ave, 37, Kiev, Ukraine 03056

Chair of nuclear power plants and engineering thermophysics

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Published

2013-06-19

How to Cite

Рогачов, В. А., Рева, С. А., & Ванджура, М. В. (2013). Analysis of modern methods of combustionof lignite in primary furnace. Eastern-European Journal of Enterprise Technologies, 3(8(63), 50–54. https://doi.org/10.15587/1729-4061.2013.14836

Issue

Vol. 3 No. 8(63) (2013): Energy-saving technologies

Section

Energy-saving technologies and equipment

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Copyright (c) 2014 Валерій Андрійович Рогачов, Сергій Анатолійович Рева, Мар’ян Володимирович Ванджура

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