公开(公告)号：US06298796B1

公开(公告)日：2001-10-09

申请号：US09515713

申请日：2000-03-01

申请人： Hirofumi Okazaki ,  Hironobu Kobayashi ,  Toshikazu Tsumura ,  Kenji Kiyama ,  Tadashi Jinbo ,  Koji Kuramashi ,  Shigeki Morita ,  Shinichiro Nomura ,  Miki Shimogori

发明人： Hirofumi Okazaki ,  Hironobu Kobayashi ,  Toshikazu Tsumura ,  Kenji Kiyama ,  Tadashi Jinbo ,  Koji Kuramashi ,  Shigeki Morita ,  Shinichiro Nomura ,  Miki Shimogori

IPC分类号： F23B700

CPC分类号： F23C6/045 ,  F23C2201/20 ,  F23D1/00 ,  F23D2201/10

摘要： A burner for burning fine coal powder comprising: a fine coal powder nozzle 10 for injecting a mixture of the fine coal powder and air; and air nozzles 11, 12 for injecting air: wherein the sufficient amount of air for complete combustion of the fine coal powder is supplied from the air nozzles; a reducing flame at a high temperature is formed by consuming oxygen rapidly with forming a flame at a high temperature by igniting the fine coal powder rapidly in the vicinity of the outlet of the burner; and an oxidizing flame having an uniform distribution of gas composition in radial direction to the central axis of the burner is formed by mixing the air injected from the air nozzle in the downstream of the reducing flame at the high temperature.

摘要翻译： 一种用于燃烧粉煤的燃烧器，包括：用于喷射煤粉和空气的混合物的细煤粉喷嘴10; 以及用于喷射空气的空气喷嘴11,12，其中从空气喷嘴供给足够量的用于粉煤粉完全燃烧的空气; 在高温下通过在燃烧器出口附近快速点燃细粉煤而在高温下形成火焰而快速消耗氧而形成高温还原火焰; 并且通过在高温下将从空气喷嘴喷射的空气在还原火焰的下游混合而形成具有气体组成在燃烧器的中心轴线上的径向均匀分布的氧化火焰。