Title:
【発明の名称】ぐう角燃焼システムを運転する方法
Document Type and Number:
Japanese Patent JP2002533644
Kind Code:
A
Abstract:
A method of operating a solid fuel-fired furnace having a plurality of windboxes each having a plurality of compartments through which fuel and air are introduced into the furnace and a fuel and air arrangement operated in accordance with the method are provided. Solid fuel is fed into the furnace and primary air and fuel are fed through the same compartments into the furnace in a direction tangential to a first imaginary circle generally located in the center of the furnace so as to interact with the fuel fed into the furnace so as to create a rotating fireball. Overfire air and offset air are also supplied into the furnace, the offset air being that portion of the air supplied to the furnace so as to support a second imaginary circle concentric to, and having a larger diameter than, the first imaginary circle. The total air supplied into the furnace is thus composed of primary air, additional combustion supporting air, overfire air, and offset air supplied in accordance with a prescribed relationship between the components of the supplied air.
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Inventors:
Tobias Rebecca El
Heart Douglas J
Louis Robert Dee
Sutton James P Third
Griffith Bruce F
Heart Douglas J
Louis Robert Dee
Sutton James P Third
Griffith Bruce F
Application Number:
JP2000589875A
Publication Date:
October 08, 2002
Filing Date:
December 20, 1999
Export Citation:
Assignee:
Alstom Power, Inc.
International Classes:
F23D1/00; F23C5/32; F23C7/02; F23C9/00; F23C99/00; (IPC1-7): F23D1/00; F23C5/32; F23C11/00
Attorney, Agent or Firm:
Asakura Shozo