A kind of center feeding rotational flow coal dust burner for preventing water-cooling wall slagging

A kind of center feeding rotational flow coal dust burner for preventing water-cooling wall slagging

  • CN 107,525,067 A
  • Filed: 09/21/2017
  • Published: 12/29/2017
  • Est. Priority Date: 09/21/2017
  • Status: Active Application
First Claim
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1. A kind of 1. center feeding rotational flow coal dust burner for preventing water-cooling wall slagging, it is characterised in that:

  • It includes primary air piping(1), inner second air passage (2), outer second air passage (3), inner second air cyclone (2-1), outer second air cyclone (3-1),Annular burnout degree passage (4), annular recirculation exhaust gases passes (5), air-introduced machine (6) and flue gas recycled pipe (7), the air-introduced machine(6) one end is connected with boiler tail flue gas passage, and the other end is connected with flue gas recycled pipe (7) arrival end, the recycling cigaretteThe port of export of tracheae (7) is connected with annular recirculation exhaust gases passes (5), and the primary air piping (1) is arranged on inner second air passage(2) in, the inner second air passage (2) is arranged in outer second air passage (3), and the inner second air cyclone (2-1) is setIn interior secondary air channel (2), the outer second air cyclone (3-1) is arranged in outer second air passage (3), the annular combustionWind passage (4) is sleeved on the outside of outer second air passage (3) to the greatest extent, and the annular recirculation exhaust gases passes (5) are sleeved on annular after-flameOn the outside of wind passage (4), the primary air piping (1), inner second air passage (2), outer second air passage (3), annular burnout degree passage(4) and annular recirculation exhaust gases passes (5) are coaxially arranged.

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