Babcock-hitachi K.k.

Shinji Tsuda

Masayuki Taniguchi

Hirofumi Okazaki

Hironobu Kobayashi

Akira Baba

Akihito Orii

Kouji Kuramashi

Takanori Yano

Hisayuki Orita

Toshihiko Mine

Satoshi Tadakuma

Hiroaki Kanemoto

Hidehisa Yoshizako

Yuki Kamikawa

Shinichirou Nomura

Noriyuki Ooyatsu

Katsumi Shimohira

A pulverized coal-fired boiler efficiently supplies air to a central part of a furnace and the neighborhood of a furnace wall, thereby promoting mixture with combustion gas, and reducing both NOx and CO. The main after air ports are structured so as to jet air having a large momentum for enabling arrival at the central part of the furnace, and the sub-after air ports are structured so as to jet air having a small momentum to the neighborhood of the wall face of the furnace, and a sectional center of each of the sub-after air ports is within a range from 1 to 5 times of a caliber of the main after air ports from a sectional center of each of the main after air ports.

Pulverized coal-fired boiler and pulverized coal burning method

Growing community of inventors

Hitachi, Japan

Shinji Tsuda