Arrangement in recovery boiler

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United States of America Patent

PATENT NO 7587994
APP PUB NO 20060288963A1
SERIAL NO

11439383

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Abstract

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The invention relates to an arrangement in a recovery boiler into which spent liquor to be incinerated and combustion air are supplied, the arrangement comprising superheaters (4a-4d) in the upper part of the recovery boiler for recovering heat, at least one boiler bank (11) located in a flue gas duct part (10a) known as the second pass, immediately after the recovery boiler, and at least one economizer (12a-12b) in a duct part after the second pass in the recovery boiler flue gas duct (10). The invention comprises an economizer (21) located parallel with the boiler bank (11) in the second pass.

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Patent Owner(s)

  • KVAERNER POWER OY

International Classification(s)

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  • 2006 Application Filing Year
  • F22B Class
  • 73 Applications Filed
  • 40 Patents Issued To-Date
  • 54.80 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20062007200820092010201120122013201420150255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Haaga, Kari Tampere , FI 7 29
Hakulinen, Aki Tampere , FI 4 31
Raukola, Antti Kangasala , FI 5 27

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Patent Citation Ranking

  • 4 Citation Count
  • F22B Class
  • 10.45 % this patent is cited more than
  • 16 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges74882201 - 1011 - 2021 - 3031 - 4002.557.51012.51517.52022.52527.53032.53537.54042.54547.55052.5

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