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Low NOx short flame burner with control of primary air/fuel ratio for NOx reduction

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • F23C-001/12
출원번호 US-0789049 (1997-01-28)
발명자 / 주소
  • LaRue Albert D. (Uniontown OH) Sarv Hamid (Canton OH)
출원인 / 주소
  • The Babcock & Wilcox Company (New Orleans LA 02)
인용정보 피인용 횟수 : 22  인용 특허 : 26

초록

A burner for the combustion of a pulverized coal plus primary air mixture includes a nozzle pipe having an inlet for receiving a pulverized coal plus primary air mixture and an outlet for discharging same. A hollow plug extends axially within the nozzle pipe and defines an annular space between the

대표청구항

A method of operating a pulverized coal burner to control a primary air to pulverized coal ratio and minimize NOx production from the burner, the burner including a nozzle pipe having an inlet for receiving a pulverized coal plus primary air mixture and an outlet for discharging same, a hollow plug

이 특허에 인용된 특허 (26)

  1. Hansen Eric (Shawnee KS) Tucker James R. (Richmond VA), Annular nozzle burner and method of operation.
  2. Morita, Shigeki; Masai, Tadahisa; Nakashita, Shigeto; Uemura, Toshio; Kouda, Fumio; Nawata, Tsuyoshi, Apparatus for coal combustion.
  3. LaRue Albert D. (Summit County OH), Burner for coal, oil or gas firing.
  4. LaRue Albert D. (Uniontown OH), Burner for coal, oil or gas firing.
  5. Michelfelder Sigfrid (Gummersbach DEX) Leikert Klaus (Gummersbach DEX), Burner for combustion of powdered fuels.
  6. Bonnel Michel G. (Comines FRX), Burner for powdered fuel.
  7. Deussner Herbert (Bergisch Gladbach DEX) Herchenbach Horst (Hennef/Sieg Heisterschoss DEX) Ramesohl Hubert (Bergisch Gladbach DEX) Breidenstein Wolfgang (Bergisch Gladbach DEX), Burner for solid fuels.
  8. Vatsky Joel (Millburn NJ), Controlled flow, split stream burner assembly.
  9. Lennon Dennis R. (Allentown PA) Snedden Richard B. (McKeesport PA) Foster Edward P. (Macungie PA) Bellas George T. (Library PA), Firing of pulverized solvent refined coal.
  10. LaRue Albert D. (Uniontown OH), Flame stabilizing/NOx reduction device for pulverized coal burner.
  11. Vatsky Joel (Millburn NJ), Fuel-staging coal burner.
  12. Larue Albert D. (Uniontown OH), Low NOx short flame burner.
  13. Campobenedetto Edward J. (Wadsworth OH) Johnson Stephen A. (Homeworth OH) Schuster Herbert (Oberhausen DEX), Low nox multi-fuel burner.
  14. Landreth Ronald R. (Crown Point IN) Anderson Lee R. (Griffith IN), Method and apparatus for reducing sulfur dioxide content in flue gases.
  15. Landreth Ronald R. (Crown Point IN) Anderson Lee R. (Griffith IN), Method and apparatus for reducing sulfur dioxide content in flue gases.
  16. Takahashi Yasuro (Nagasaki JPX) Sakai Masayasu (Nagasaki JPX), Method of burning fuel with lowered nitrogen-oxides emission.
  17. Koike ; Sakae ; Matsunami ; Shoichi ; Goto ; Yorinobu ; Tanabe ; Yoshio, Method of treating combustion exhaust gas containing nitrogen oxides.
  18. Nakayasu Michiharu (Ube JPX) Kumamoto Kenzo (Ube JPX) Suzuki Kenji (Ube JPX) Kuba Arata (Ube JPX) Kitagawa Katsushi (Ube JPX), Mixed-firing burners for use with pulverized coal and heavy oil.
  19. LaRue, Albert D.; Wolf, John J., Mixer for dual register burner.
  20. LaRue Albert D. (Uniontown OH) Clocker Roger A. (Wadsworth OH) Smith ; Jr. Norman F. (Doylestown OH), Primary air exchange for a pulverized coal burner.
  21. Izuha Akira (Koganei JPX) Shinano Tomoyuki (Yokohama JPX) Shibayama Yuho (Chiba JPX) Kurata Chikatoshi (Akashi JPX) Fujii Kenichi (Kobe JPX), Pulverized coal burner.
  22. Kaneko Shozo (Nagasaki JPX) Kinoshita Masaaki (Nagasaki JPX), Pulverized coal combustion method.
  23. Takahashi Yasuro (Nagasaki JPX) Fujima Yukihisa (Nagasaki JPX) Tokuda Kimishiro (Nagasaki JPX), Pulverized fuel firing apparatus.
  24. Schrder Ulrich (Krefeld DEX), Solid-fuel burner.
  25. Vatsky Joel (Millburn NJ), Swirl producer.
  26. Itse Daniel C. (Worcester MA) Penterson Craig A. (Sutton MA), Venturi burner nozzle for pulverized coal.

이 특허를 인용한 특허 (22)

  1. Skachkov, Roman Alexandrovich; Menger, Christian; Gusev, Mikhail Petrovich; Serdyuk, Konstantin Mikhailovich; Khan, Vladimir Konstantinovich, Burner assembly for flaring low calorific gases.
  2. Vatsky,Joel; Conn,Richard E., Burner system and method for mixing a plurality of solid fuels.
  3. LaRue,Albert D.; Sayre,Alan N.; Kahle,William J.; Sarv,Hamid; Rowley,Daniel R., Burner with center air jet.
  4. LaRue, Albert D; Chen, Zumao; McQuistan, Keir D, Burner with flame stabilizing/center air jet device for low quality fuel.
  5. Kobayashi, Hisashi; Bool, III, Lawrence E., Combustion with reduced carbon in the ash.
  6. Wark, Rickey E., Diffuser insert for coal fired burners.
  7. Sarv, Hamid; Lenzer, Ronald C., Dual fuel burner for a shortened flame and reduced pollutant emissions.
  8. Okazaki Hirofumi,JPX ; Kobayashi Hironobu,JPX ; Tsumura Toshikazu,JPX ; Kiyama Kenji,JPX ; Jinbo Tadashi,JPX ; Kuramashi Koji,JPX ; Morita Shigeki,JPX ; Nomura Shinichiro,JPX ; Shimogori Miki,JPX, Fine coal powder combustion method for a fine coal powder combustion burner.
  9. Coggin, Jr., Charles Haley, Glass-melting furnace burner and method of its use.
  10. Sarv, Hamid; LaRue, Albert D.; Kahle, William J.; Sayre, Alan N.; Rowley, Daniel R., Large diameter mid-zone air separation cone for expanding IRZ.
  11. Kobayashi,Hisashi; Bool, III,Lawrence E., Low NOx combustion.
  12. Kobayashi,Hisashi; Bool, III,Lawrence E., Low NOx combustion.
  13. Rabovitser Iosif K. ; Knight Richard ; Khinkis Mark J. ; Abbasi Hamid A. ; Wohadlo Stan, Low NOx pulverized solid fuel combustion process and apparatus.
  14. Barton, Jesse Ellis; Berry, Jonathan Dwight; Hadley, Mark Allan; Nelson, Glenn David; Rohrssen, Robert Joseph; Vanselow, John Drake, Method and apparatus for introducing diluent flow into a combustor.
  15. Ohlsen Ib,DKX, Method and burner for introducing fuel to a kiln.
  16. Ruottu Seppo,FIX ; Miettinen Markku,FIX ; Oksanen Mauno,FIX, Method and reactor for processing of fuels having a wide particle size distribution.
  17. Kobayashi, Hisashi; Bool, III, Lawrence E.; Snyder, William J., NOx reduction in combustion with concentrated coal streams and oxygen injection.
  18. Kobayashi, Hisashi; Bool, III, Lawrence E., Oxygen enhanced low NOx combustion.
  19. Feldermann, Christian J., Particulate injection burner.
  20. Cheng, Changye; Yang, Jiaju; Li, Yi; Cui, Xingyuan; Zhang, Chaoqun; Gong, Zeru; Zhang, Guangquan; Zhang, Yubin; Liu, Peng, Pulverized coal concentrator and pulverized coal burner including the concentrator.
  21. Alberti Marco,ITX ; Rizzi Roberto,ITX ; Martano Marcello,ITX ; De Michele Gennaro,ITX ; Ligasacchi Sergio,ITX, Three-stage low NOx burner for burning solid, liquid and gaseous fuels.
  22. Marx, Peter D.; Pickering, Robert W.; Trippel, Charles E., Ultra low NOx burner replacement system.

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