Sintered flue gas dry-method removal method and device

Sintered flue gas dry-method removal method and device

  • CN 101,306,311 B
  • Filed: 01/22/2008
  • Issued: 07/25/2012
  • Est. Priority Date: 01/22/2008
  • Status: Active Grant
First Claim
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1. sintered flue gas dry-method removal method is characterized in that may further comprise the steps:

  • 1) when high-temperature flue gas gets into rapid mixing district (4), add absorbent, absorbent removes the SO of a part in rapid mixing district (4) and flue gas premixed, preliminary treatment 2, SO 3, heavy metal and two dislike because of, and most HCl and HF gas;

    2) flue gas that comes out from rapid mixing district (4) is through accelerating region (5) speed-raising back entering ciculation fluidized reaction zone (7), at ciculation fluidized reaction zone (7) front end spray cooling, and proceeds to remove remaining SO at ciculation fluidized reaction zone (7) 2, SO 3, heavy metal, two dislikes because of composition;

    3) flue gas that is cleaned gets into gas-solid separator (9) through reaction tower exhaust pass (8), and desulphurization ash is captured by gas-solid separator (9), gets into rapid mixing district (4) through ciculation fluidized skewed slot (12), and flue gas after being purified enters chimney (11) through air-introduced machine (10);

    Said flue gas is 4~

    10m/s in the speed of ciculation fluidized reaction zone (7);

    The speed of said flue gas in rapid mixing district (4) is 12~

    20m/s;

    Said flue gas is 33~

    60m/s in the speed of accelerating region (5).

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