J Shanghai Jiaotong Univ Sci

J Shanghai Jiaotong Univ Sci ›› 2016, Vol. 21 ›› Issue (4): 450-456.doi: 10.1007/s12204-016-1745-9

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Influence of the type of the pulverized coal concentrator on the operation of a tangential fired boiler with horizontal bias combustion

Guan X.; Zou X.; Sun S.   

  1. College of Urban Construction and Safely Engineering, Shanghai Institute of Technology, Shanghai, 201418, China; Research Institute of Combustion Engineering, Harbin Institute of Technology, Harbin, 150001, China
  • Published:2025-06-27

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Abstract: In this paper, the problems of combustion instability and high-temperature corrosion of pulverized coal fired boiler are investigated by numerical simulation and analysis of the momentum moment. Elbow and twisting plate type of burners are used in the boiler, and the reverse moment of momentum is formed at the outlet of the fuel-rich side of the burner. The momentum moment in the boiler is opposite to the designed tangential circle, and the tangential circle in the boiler is reversed rotation. The reverse moment of momentum at the burner outlet can be eliminated by using louver horizontal bias pulverized coal burner, while the problems of combustion instability and high-temperature corrosion of the boiler are solved, and the combustion efficiency is improved. Accordingly, economic benefit is obviously got. © 2016, Shanghai Jiaotong University and Springer-Verlag Berlin Heidelberg.

Key words: burner retrofit; high-temperature corrosion; pulverized coal burner; reversed rotation; unsteady combustion condition